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author Miodrag Milanovic <mmicko@gmail.com>2015-01-10 18:42:37 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2015-01-10 18:42:37 +0100
commitfa3f99377c9c7bdfdaec79f6a7eb4967059182bf (patch)
treea0a49afff0ab797bb56bdaac6aa432a4faa73f6b /src/lib/libflac
parenta53c8724052c0d2c85bd042eda407d24add6d469 (diff)
Added full source of flac-1.2.1 (nw)
Diffstat (limited to 'src/lib/libflac')
-rw-r--r--src/lib/libflac/include/FLAC/all.h370
-rw-r--r--src/lib/libflac/include/FLAC/assert.h45
-rw-r--r--src/lib/libflac/include/FLAC/callback.h184
-rw-r--r--src/lib/libflac/include/FLAC/export.h91
-rw-r--r--src/lib/libflac/include/FLAC/format.h1007
-rw-r--r--src/lib/libflac/include/FLAC/metadata.h2180
-rw-r--r--src/lib/libflac/include/FLAC/ordinals.h80
-rw-r--r--src/lib/libflac/include/FLAC/stream_decoder.h1551
-rw-r--r--src/lib/libflac/include/FLAC/stream_encoder.h1762
-rw-r--r--src/lib/libflac/include/share/alloc.h212
-rw-r--r--src/lib/libflac/include/share/utf8.h25
-rw-r--r--src/lib/libflac/libFLAC/bitmath.c149
-rw-r--r--src/lib/libflac/libFLAC/bitreader.c1377
-rw-r--r--src/lib/libflac/libFLAC/bitwriter.c889
-rw-r--r--src/lib/libflac/libFLAC/cpu.c422
-rw-r--r--src/lib/libflac/libFLAC/crc.c142
-rw-r--r--src/lib/libflac/libFLAC/fixed.c435
-rw-r--r--src/lib/libflac/libFLAC/float.c308
-rw-r--r--src/lib/libflac/libFLAC/format.c593
-rw-r--r--src/lib/libflac/libFLAC/include/private/all.h49
-rw-r--r--src/lib/libflac/libFLAC/include/private/bitmath.h42
-rw-r--r--src/lib/libflac/libFLAC/include/private/bitreader.h99
-rw-r--r--src/lib/libflac/libFLAC/include/private/bitwriter.h103
-rw-r--r--src/lib/libflac/libFLAC/include/private/cpu.h88
-rw-r--r--src/lib/libflac/libFLAC/include/private/crc.h61
-rw-r--r--src/lib/libflac/libFLAC/include/private/fixed.h97
-rw-r--r--src/lib/libflac/libFLAC/include/private/float.h97
-rw-r--r--src/lib/libflac/libFLAC/include/private/format.h44
-rw-r--r--src/lib/libflac/libFLAC/include/private/lpc.h214
-rw-r--r--src/lib/libflac/libFLAC/include/private/md5.h44
-rw-r--r--src/lib/libflac/libFLAC/include/private/memory.h56
-rw-r--r--src/lib/libflac/libFLAC/include/private/metadata.h45
-rw-r--r--src/lib/libflac/libFLAC/include/private/stream_encoder_framing.h45
-rw-r--r--src/lib/libflac/libFLAC/include/private/window.h71
-rw-r--r--src/lib/libflac/libFLAC/include/protected/all.h38
-rw-r--r--src/lib/libflac/libFLAC/include/protected/stream_decoder.h58
-rw-r--r--src/lib/libflac/libFLAC/include/protected/stream_encoder.h110
-rw-r--r--src/lib/libflac/libFLAC/lpc.c1384
-rw-r--r--src/lib/libflac/libFLAC/md5.c424
-rw-r--r--src/lib/libflac/libFLAC/memory.c222
-rw-r--r--src/lib/libflac/libFLAC/metadata_iterators.c3363
-rw-r--r--src/lib/libflac/libFLAC/metadata_object.c1819
-rw-r--r--src/lib/libflac/libFLAC/stream_decoder.c3390
-rw-r--r--src/lib/libflac/libFLAC/stream_encoder.c4361
-rw-r--r--src/lib/libflac/libFLAC/stream_encoder_framing.c553
-rw-r--r--src/lib/libflac/libFLAC/window.c225
46 files changed, 0 insertions, 28924 deletions
diff --git a/src/lib/libflac/include/FLAC/all.h b/src/lib/libflac/include/FLAC/all.h
deleted file mode 100644
index c542c0d5def..00000000000
--- a/src/lib/libflac/include/FLAC/all.h
+++ /dev/null
@@ -1,370 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__ALL_H
-#define FLAC__ALL_H
-
-#include "export.h"
-
-#include "assert.h"
-#include "callback.h"
-#include "format.h"
-#include "metadata.h"
-#include "ordinals.h"
-#include "stream_decoder.h"
-#include "stream_encoder.h"
-
-/** \mainpage
- *
- * \section intro Introduction
- *
- * This is the documentation for the FLAC C and C++ APIs. It is
- * highly interconnected; this introduction should give you a top
- * level idea of the structure and how to find the information you
- * need. As a prerequisite you should have at least a basic
- * knowledge of the FLAC format, documented
- * <A HREF="../format.html">here</A>.
- *
- * \section c_api FLAC C API
- *
- * The FLAC C API is the interface to libFLAC, a set of structures
- * describing the components of FLAC streams, and functions for
- * encoding and decoding streams, as well as manipulating FLAC
- * metadata in files. The public include files will be installed
- * in your include area (for example /usr/include/FLAC/...).
- *
- * By writing a little code and linking against libFLAC, it is
- * relatively easy to add FLAC support to another program. The
- * library is licensed under <A HREF="../license.html">Xiph's BSD license</A>.
- * Complete source code of libFLAC as well as the command-line
- * encoder and plugins is available and is a useful source of
- * examples.
- *
- * Aside from encoders and decoders, libFLAC provides a powerful
- * metadata interface for manipulating metadata in FLAC files. It
- * allows the user to add, delete, and modify FLAC metadata blocks
- * and it can automatically take advantage of PADDING blocks to avoid
- * rewriting the entire FLAC file when changing the size of the
- * metadata.
- *
- * libFLAC usually only requires the standard C library and C math
- * library. In particular, threading is not used so there is no
- * dependency on a thread library. However, libFLAC does not use
- * global variables and should be thread-safe.
- *
- * libFLAC also supports encoding to and decoding from Ogg FLAC.
- * However the metadata editing interfaces currently have limited
- * read-only support for Ogg FLAC files.
- *
- * \section cpp_api FLAC C++ API
- *
- * The FLAC C++ API is a set of classes that encapsulate the
- * structures and functions in libFLAC. They provide slightly more
- * functionality with respect to metadata but are otherwise
- * equivalent. For the most part, they share the same usage as
- * their counterparts in libFLAC, and the FLAC C API documentation
- * can be used as a supplement. The public include files
- * for the C++ API will be installed in your include area (for
- * example /usr/include/FLAC++/...).
- *
- * libFLAC++ is also licensed under
- * <A HREF="../license.html">Xiph's BSD license</A>.
- *
- * \section getting_started Getting Started
- *
- * A good starting point for learning the API is to browse through
- * the <A HREF="modules.html">modules</A>. Modules are logical
- * groupings of related functions or classes, which correspond roughly
- * to header files or sections of header files. Each module includes a
- * detailed description of the general usage of its functions or
- * classes.
- *
- * From there you can go on to look at the documentation of
- * individual functions. You can see different views of the individual
- * functions through the links in top bar across this page.
- *
- * If you prefer a more hands-on approach, you can jump right to some
- * <A HREF="../documentation_example_code.html">example code</A>.
- *
- * \section porting_guide Porting Guide
- *
- * Starting with FLAC 1.1.3 a \link porting Porting Guide \endlink
- * has been introduced which gives detailed instructions on how to
- * port your code to newer versions of FLAC.
- *
- * \section embedded_developers Embedded Developers
- *
- * libFLAC has grown larger over time as more functionality has been
- * included, but much of it may be unnecessary for a particular embedded
- * implementation. Unused parts may be pruned by some simple editing of
- * src/libFLAC/Makefile.am. In general, the decoders, encoders, and
- * metadata interface are all independent from each other.
- *
- * It is easiest to just describe the dependencies:
- *
- * - All modules depend on the \link flac_format Format \endlink module.
- * - The decoders and encoders depend on the bitbuffer.
- * - The decoder is independent of the encoder. The encoder uses the
- * decoder because of the verify feature, but this can be removed if
- * not needed.
- * - Parts of the metadata interface require the stream decoder (but not
- * the encoder).
- * - Ogg support is selectable through the compile time macro
- * \c FLAC__HAS_OGG.
- *
- * For example, if your application only requires the stream decoder, no
- * encoder, and no metadata interface, you can remove the stream encoder
- * and the metadata interface, which will greatly reduce the size of the
- * library.
- *
- * Also, there are several places in the libFLAC code with comments marked
- * with "OPT:" where a #define can be changed to enable code that might be
- * faster on a specific platform. Experimenting with these can yield faster
- * binaries.
- */
-
-/** \defgroup porting Porting Guide for New Versions
- *
- * This module describes differences in the library interfaces from
- * version to version. It assists in the porting of code that uses
- * the libraries to newer versions of FLAC.
- *
- * One simple facility for making porting easier that has been added
- * in FLAC 1.1.3 is a set of \c #defines in \c export.h of each
- * library's includes (e.g. \c include/FLAC/export.h). The
- * \c #defines mirror the libraries'
- * <A HREF="http://www.gnu.org/software/libtool/manual.html#Libtool-versioning">libtool version numbers</A>,
- * e.g. in libFLAC there are \c FLAC_API_VERSION_CURRENT,
- * \c FLAC_API_VERSION_REVISION, and \c FLAC_API_VERSION_AGE.
- * These can be used to support multiple versions of an API during the
- * transition phase, e.g.
- *
- * \code
- * #if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
- * legacy code
- * #else
- * new code
- * #endif
- * \endcode
- *
- * The the source will work for multiple versions and the legacy code can
- * easily be removed when the transition is complete.
- *
- * Another available symbol is FLAC_API_SUPPORTS_OGG_FLAC (defined in
- * include/FLAC/export.h), which can be used to determine whether or not
- * the library has been compiled with support for Ogg FLAC. This is
- * simpler than trying to call an Ogg init function and catching the
- * error.
- */
-
-/** \defgroup porting_1_1_2_to_1_1_3 Porting from FLAC 1.1.2 to 1.1.3
- * \ingroup porting
- *
- * \brief
- * This module describes porting from FLAC 1.1.2 to FLAC 1.1.3.
- *
- * The main change between the APIs in 1.1.2 and 1.1.3 is that they have
- * been simplified. First, libOggFLAC has been merged into libFLAC and
- * libOggFLAC++ has been merged into libFLAC++. Second, both the three
- * decoding layers and three encoding layers have been merged into a
- * single stream decoder and stream encoder. That is, the functionality
- * of FLAC__SeekableStreamDecoder and FLAC__FileDecoder has been merged
- * into FLAC__StreamDecoder, and FLAC__SeekableStreamEncoder and
- * FLAC__FileEncoder into FLAC__StreamEncoder. Only the
- * FLAC__StreamDecoder and FLAC__StreamEncoder remain. What this means
- * is there is now a single API that can be used to encode or decode
- * streams to/from native FLAC or Ogg FLAC and the single API can work
- * on both seekable and non-seekable streams.
- *
- * Instead of creating an encoder or decoder of a certain layer, now the
- * client will always create a FLAC__StreamEncoder or
- * FLAC__StreamDecoder. The old layers are now differentiated by the
- * initialization function. For example, for the decoder,
- * FLAC__stream_decoder_init() has been replaced by
- * FLAC__stream_decoder_init_stream(). This init function takes
- * callbacks for the I/O, and the seeking callbacks are optional. This
- * allows the client to use the same object for seekable and
- * non-seekable streams. For decoding a FLAC file directly, the client
- * can use FLAC__stream_decoder_init_file() and pass just a filename
- * and fewer callbacks; most of the other callbacks are supplied
- * internally. For situations where fopen()ing by filename is not
- * possible (e.g. Unicode filenames on Windows) the client can instead
- * open the file itself and supply the FILE* to
- * FLAC__stream_decoder_init_FILE(). The init functions now returns a
- * FLAC__StreamDecoderInitStatus instead of FLAC__StreamDecoderState.
- * Since the callbacks and client data are now passed to the init
- * function, the FLAC__stream_decoder_set_*_callback() functions and
- * FLAC__stream_decoder_set_client_data() are no longer needed. The
- * rest of the calls to the decoder are the same as before.
- *
- * There are counterpart init functions for Ogg FLAC, e.g.
- * FLAC__stream_decoder_init_ogg_stream(). All the rest of the calls
- * and callbacks are the same as for native FLAC.
- *
- * As an example, in FLAC 1.1.2 a seekable stream decoder would have
- * been set up like so:
- *
- * \code
- * FLAC__SeekableStreamDecoder *decoder = FLAC__seekable_stream_decoder_new();
- * if(decoder == NULL) do_something;
- * FLAC__seekable_stream_decoder_set_md5_checking(decoder, true);
- * [... other settings ...]
- * FLAC__seekable_stream_decoder_set_read_callback(decoder, my_read_callback);
- * FLAC__seekable_stream_decoder_set_seek_callback(decoder, my_seek_callback);
- * FLAC__seekable_stream_decoder_set_tell_callback(decoder, my_tell_callback);
- * FLAC__seekable_stream_decoder_set_length_callback(decoder, my_length_callback);
- * FLAC__seekable_stream_decoder_set_eof_callback(decoder, my_eof_callback);
- * FLAC__seekable_stream_decoder_set_write_callback(decoder, my_write_callback);
- * FLAC__seekable_stream_decoder_set_metadata_callback(decoder, my_metadata_callback);
- * FLAC__seekable_stream_decoder_set_error_callback(decoder, my_error_callback);
- * FLAC__seekable_stream_decoder_set_client_data(decoder, my_client_data);
- * if(FLAC__seekable_stream_decoder_init(decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK) do_something;
- * \endcode
- *
- * In FLAC 1.1.3 it is like this:
- *
- * \code
- * FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new();
- * if(decoder == NULL) do_something;
- * FLAC__stream_decoder_set_md5_checking(decoder, true);
- * [... other settings ...]
- * if(FLAC__stream_decoder_init_stream(
- * decoder,
- * my_read_callback,
- * my_seek_callback, // or NULL
- * my_tell_callback, // or NULL
- * my_length_callback, // or NULL
- * my_eof_callback, // or NULL
- * my_write_callback,
- * my_metadata_callback, // or NULL
- * my_error_callback,
- * my_client_data
- * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
- * \endcode
- *
- * or you could do;
- *
- * \code
- * [...]
- * FILE *file = fopen("somefile.flac","rb");
- * if(file == NULL) do_somthing;
- * if(FLAC__stream_decoder_init_FILE(
- * decoder,
- * file,
- * my_write_callback,
- * my_metadata_callback, // or NULL
- * my_error_callback,
- * my_client_data
- * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
- * \endcode
- *
- * or just:
- *
- * \code
- * [...]
- * if(FLAC__stream_decoder_init_file(
- * decoder,
- * "somefile.flac",
- * my_write_callback,
- * my_metadata_callback, // or NULL
- * my_error_callback,
- * my_client_data
- * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
- * \endcode
- *
- * Another small change to the decoder is in how it handles unparseable
- * streams. Before, when the decoder found an unparseable stream
- * (reserved for when the decoder encounters a stream from a future
- * encoder that it can't parse), it changed the state to
- * \c FLAC__STREAM_DECODER_UNPARSEABLE_STREAM. Now the decoder instead
- * drops sync and calls the error callback with a new error code
- * \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM. This is
- * more robust. If your error callback does not discriminate on the the
- * error state, your code does not need to be changed.
- *
- * The encoder now has a new setting:
- * FLAC__stream_encoder_set_apodization(). This is for setting the
- * method used to window the data before LPC analysis. You only need to
- * add a call to this function if the default is not suitable. There
- * are also two new convenience functions that may be useful:
- * FLAC__metadata_object_cuesheet_calculate_cddb_id() and
- * FLAC__metadata_get_cuesheet().
- *
- * The \a bytes parameter to FLAC__StreamDecoderReadCallback,
- * FLAC__StreamEncoderReadCallback, and FLAC__StreamEncoderWriteCallback
- * is now \c size_t instead of \c unsigned.
- */
-
-/** \defgroup porting_1_1_3_to_1_1_4 Porting from FLAC 1.1.3 to 1.1.4
- * \ingroup porting
- *
- * \brief
- * This module describes porting from FLAC 1.1.3 to FLAC 1.1.4.
- *
- * There were no changes to any of the interfaces from 1.1.3 to 1.1.4.
- * There was a slight change in the implementation of
- * FLAC__stream_encoder_set_metadata(); the function now makes a copy
- * of the \a metadata array of pointers so the client no longer needs
- * to maintain it after the call. The objects themselves that are
- * pointed to by the array are still not copied though and must be
- * maintained until the call to FLAC__stream_encoder_finish().
- */
-
-/** \defgroup porting_1_1_4_to_1_2_0 Porting from FLAC 1.1.4 to 1.2.0
- * \ingroup porting
- *
- * \brief
- * This module describes porting from FLAC 1.1.4 to FLAC 1.2.0.
- *
- * There were only very minor changes to the interfaces from 1.1.4 to 1.2.0.
- * In libFLAC, \c FLAC__format_sample_rate_is_subset() was added.
- * In libFLAC++, \c FLAC::Decoder::Stream::get_decode_position() was added.
- *
- * Finally, value of the constant \c FLAC__FRAME_HEADER_RESERVED_LEN
- * has changed to reflect the conversion of one of the reserved bits
- * into active use. It used to be \c 2 and now is \c 1. However the
- * FLAC frame header length has not changed, so to skip the proper
- * number of bits, use \c FLAC__FRAME_HEADER_RESERVED_LEN +
- * \c FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN
- */
-
-/** \defgroup flac FLAC C API
- *
- * The FLAC C API is the interface to libFLAC, a set of structures
- * describing the components of FLAC streams, and functions for
- * encoding and decoding streams, as well as manipulating FLAC
- * metadata in files.
- *
- * You should start with the format components as all other modules
- * are dependent on it.
- */
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/assert.h b/src/lib/libflac/include/FLAC/assert.h
deleted file mode 100644
index 3fc03f316a5..00000000000
--- a/src/lib/libflac/include/FLAC/assert.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__ASSERT_H
-#define FLAC__ASSERT_H
-
-/* we need this since some compilers (like MSVC) leave assert()s on release code (and we don't want to use their ASSERT) */
-#ifdef DEBUG
-#include <assert.h>
-#define FLAC__ASSERT(x) assert(x)
-#define FLAC__ASSERT_DECLARATION(x) x
-#else
-#define FLAC__ASSERT(x)
-#define FLAC__ASSERT_DECLARATION(x)
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/callback.h b/src/lib/libflac/include/FLAC/callback.h
deleted file mode 100644
index c9541210b4f..00000000000
--- a/src/lib/libflac/include/FLAC/callback.h
+++ /dev/null
@@ -1,184 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__CALLBACK_H
-#define FLAC__CALLBACK_H
-
-#include "ordinals.h"
-#include <stdlib.h> /* for size_t */
-
-/** \file include/FLAC/callback.h
- *
- * \brief
- * This module defines the structures for describing I/O callbacks
- * to the other FLAC interfaces.
- *
- * See the detailed documentation for callbacks in the
- * \link flac_callbacks callbacks \endlink module.
- */
-
-/** \defgroup flac_callbacks FLAC/callback.h: I/O callback structures
- * \ingroup flac
- *
- * \brief
- * This module defines the structures for describing I/O callbacks
- * to the other FLAC interfaces.
- *
- * The purpose of the I/O callback functions is to create a common way
- * for the metadata interfaces to handle I/O.
- *
- * Originally the metadata interfaces required filenames as the way of
- * specifying FLAC files to operate on. This is problematic in some
- * environments so there is an additional option to specify a set of
- * callbacks for doing I/O on the FLAC file, instead of the filename.
- *
- * In addition to the callbacks, a FLAC__IOHandle type is defined as an
- * opaque structure for a data source.
- *
- * The callback function prototypes are similar (but not identical) to the
- * stdio functions fread, fwrite, fseek, ftell, feof, and fclose. If you use
- * stdio streams to implement the callbacks, you can pass fread, fwrite, and
- * fclose anywhere a FLAC__IOCallback_Read, FLAC__IOCallback_Write, or
- * FLAC__IOCallback_Close is required, and a FILE* anywhere a FLAC__IOHandle
- * is required. \warning You generally CANNOT directly use fseek or ftell
- * for FLAC__IOCallback_Seek or FLAC__IOCallback_Tell since on most systems
- * these use 32-bit offsets and FLAC requires 64-bit offsets to deal with
- * large files. You will have to find an equivalent function (e.g. ftello),
- * or write a wrapper. The same is true for feof() since this is usually
- * implemented as a macro, not as a function whose address can be taken.
- *
- * \{
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** This is the opaque handle type used by the callbacks. Typically
- * this is a \c FILE* or address of a file descriptor.
- */
-typedef void* FLAC__IOHandle;
-
-/** Signature for the read callback.
- * The signature and semantics match POSIX fread() implementations
- * and can generally be used interchangeably.
- *
- * \param ptr The address of the read buffer.
- * \param size The size of the records to be read.
- * \param nmemb The number of records to be read.
- * \param handle The handle to the data source.
- * \retval size_t
- * The number of records read.
- */
-typedef size_t (*FLAC__IOCallback_Read) (void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
-
-/** Signature for the write callback.
- * The signature and semantics match POSIX fwrite() implementations
- * and can generally be used interchangeably.
- *
- * \param ptr The address of the write buffer.
- * \param size The size of the records to be written.
- * \param nmemb The number of records to be written.
- * \param handle The handle to the data source.
- * \retval size_t
- * The number of records written.
- */
-typedef size_t (*FLAC__IOCallback_Write) (const void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
-
-/** Signature for the seek callback.
- * The signature and semantics mostly match POSIX fseek() WITH ONE IMPORTANT
- * EXCEPTION: the offset is a 64-bit type whereas fseek() is generally 'long'
- * and 32-bits wide.
- *
- * \param handle The handle to the data source.
- * \param offset The new position, relative to \a whence
- * \param whence \c SEEK_SET, \c SEEK_CUR, or \c SEEK_END
- * \retval int
- * \c 0 on success, \c -1 on error.
- */
-typedef int (*FLAC__IOCallback_Seek) (FLAC__IOHandle handle, FLAC__int64 offset, int whence);
-
-/** Signature for the tell callback.
- * The signature and semantics mostly match POSIX ftell() WITH ONE IMPORTANT
- * EXCEPTION: the offset is a 64-bit type whereas ftell() is generally 'long'
- * and 32-bits wide.
- *
- * \param handle The handle to the data source.
- * \retval FLAC__int64
- * The current position on success, \c -1 on error.
- */
-typedef FLAC__int64 (*FLAC__IOCallback_Tell) (FLAC__IOHandle handle);
-
-/** Signature for the EOF callback.
- * The signature and semantics mostly match POSIX feof() but WATCHOUT:
- * on many systems, feof() is a macro, so in this case a wrapper function
- * must be provided instead.
- *
- * \param handle The handle to the data source.
- * \retval int
- * \c 0 if not at end of file, nonzero if at end of file.
- */
-typedef int (*FLAC__IOCallback_Eof) (FLAC__IOHandle handle);
-
-/** Signature for the close callback.
- * The signature and semantics match POSIX fclose() implementations
- * and can generally be used interchangeably.
- *
- * \param handle The handle to the data source.
- * \retval int
- * \c 0 on success, \c EOF on error.
- */
-typedef int (*FLAC__IOCallback_Close) (FLAC__IOHandle handle);
-
-/** A structure for holding a set of callbacks.
- * Each FLAC interface that requires a FLAC__IOCallbacks structure will
- * describe which of the callbacks are required. The ones that are not
- * required may be set to NULL.
- *
- * If the seek requirement for an interface is optional, you can signify that
- * a data sorce is not seekable by setting the \a seek field to \c NULL.
- */
-typedef struct {
- FLAC__IOCallback_Read read;
- FLAC__IOCallback_Write write;
- FLAC__IOCallback_Seek seek;
- FLAC__IOCallback_Tell tell;
- FLAC__IOCallback_Eof eof;
- FLAC__IOCallback_Close close;
-} FLAC__IOCallbacks;
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/export.h b/src/lib/libflac/include/FLAC/export.h
deleted file mode 100644
index e8295b86eac..00000000000
--- a/src/lib/libflac/include/FLAC/export.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__EXPORT_H
-#define FLAC__EXPORT_H
-
-/** \file include/FLAC/export.h
- *
- * \brief
- * This module contains #defines and symbols for exporting function
- * calls, and providing version information and compiled-in features.
- *
- * See the \link flac_export export \endlink module.
- */
-
-/** \defgroup flac_export FLAC/export.h: export symbols
- * \ingroup flac
- *
- * \brief
- * This module contains #defines and symbols for exporting function
- * calls, and providing version information and compiled-in features.
- *
- * If you are compiling with MSVC and will link to the static library
- * (libFLAC.lib) you should define FLAC__NO_DLL in your project to
- * make sure the symbols are exported properly.
- *
- * \{
- */
-
-#if defined(FLAC__NO_DLL) || !defined(_MSC_VER)
-#define FLAC_API
-
-#else
-
-#ifdef FLAC_API_EXPORTS
-#define FLAC_API _declspec(dllexport)
-#else
-#define FLAC_API _declspec(dllimport)
-
-#endif
-#endif
-
-/** These #defines will mirror the libtool-based library version number, see
- * http://www.gnu.org/software/libtool/manual.html#Libtool-versioning
- */
-#define FLAC_API_VERSION_CURRENT 10
-#define FLAC_API_VERSION_REVISION 0 /**< see above */
-#define FLAC_API_VERSION_AGE 2 /**< see above */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** \c 1 if the library has been compiled with support for Ogg FLAC, else \c 0. */
-extern FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC;
-
-#ifdef __cplusplus
-}
-#endif
-
-/* \} */
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/format.h b/src/lib/libflac/include/FLAC/format.h
deleted file mode 100644
index 2c838f34f8e..00000000000
--- a/src/lib/libflac/include/FLAC/format.h
+++ /dev/null
@@ -1,1007 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__FORMAT_H
-#define FLAC__FORMAT_H
-
-#include "export.h"
-#include "ordinals.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** \file include/FLAC/format.h
- *
- * \brief
- * This module contains structure definitions for the representation
- * of FLAC format components in memory. These are the basic
- * structures used by the rest of the interfaces.
- *
- * See the detailed documentation in the
- * \link flac_format format \endlink module.
- */
-
-/** \defgroup flac_format FLAC/format.h: format components
- * \ingroup flac
- *
- * \brief
- * This module contains structure definitions for the representation
- * of FLAC format components in memory. These are the basic
- * structures used by the rest of the interfaces.
- *
- * First, you should be familiar with the
- * <A HREF="../format.html">FLAC format</A>. Many of the values here
- * follow directly from the specification. As a user of libFLAC, the
- * interesting parts really are the structures that describe the frame
- * header and metadata blocks.
- *
- * The format structures here are very primitive, designed to store
- * information in an efficient way. Reading information from the
- * structures is easy but creating or modifying them directly is
- * more complex. For the most part, as a user of a library, editing
- * is not necessary; however, for metadata blocks it is, so there are
- * convenience functions provided in the \link flac_metadata metadata
- * module \endlink to simplify the manipulation of metadata blocks.
- *
- * \note
- * It's not the best convention, but symbols ending in _LEN are in bits
- * and _LENGTH are in bytes. _LENGTH symbols are \#defines instead of
- * global variables because they are usually used when declaring byte
- * arrays and some compilers require compile-time knowledge of array
- * sizes when declared on the stack.
- *
- * \{
- */
-
-
-/*
- Most of the values described in this file are defined by the FLAC
- format specification. There is nothing to tune here.
-*/
-
-/** The largest legal metadata type code. */
-#define FLAC__MAX_METADATA_TYPE_CODE (126u)
-
-/** The minimum block size, in samples, permitted by the format. */
-#define FLAC__MIN_BLOCK_SIZE (16u)
-
-/** The maximum block size, in samples, permitted by the format. */
-#define FLAC__MAX_BLOCK_SIZE (65535u)
-
-/** The maximum block size, in samples, permitted by the FLAC subset for
- * sample rates up to 48kHz. */
-#define FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ (4608u)
-
-/** The maximum number of channels permitted by the format. */
-#define FLAC__MAX_CHANNELS (8u)
-
-/** The minimum sample resolution permitted by the format. */
-#define FLAC__MIN_BITS_PER_SAMPLE (4u)
-
-/** The maximum sample resolution permitted by the format. */
-#define FLAC__MAX_BITS_PER_SAMPLE (32u)
-
-/** The maximum sample resolution permitted by libFLAC.
- *
- * \warning
- * FLAC__MAX_BITS_PER_SAMPLE is the limit of the FLAC format. However,
- * the reference encoder/decoder is currently limited to 24 bits because
- * of prevalent 32-bit math, so make sure and use this value when
- * appropriate.
- */
-#define FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE (24u)
-
-/** The maximum sample rate permitted by the format. The value is
- * ((2 ^ 16) - 1) * 10; see <A HREF="../format.html">FLAC format</A>
- * as to why.
- */
-#define FLAC__MAX_SAMPLE_RATE (655350u)
-
-/** The maximum LPC order permitted by the format. */
-#define FLAC__MAX_LPC_ORDER (32u)
-
-/** The maximum LPC order permitted by the FLAC subset for sample rates
- * up to 48kHz. */
-#define FLAC__SUBSET_MAX_LPC_ORDER_48000HZ (12u)
-
-/** The minimum quantized linear predictor coefficient precision
- * permitted by the format.
- */
-#define FLAC__MIN_QLP_COEFF_PRECISION (5u)
-
-/** The maximum quantized linear predictor coefficient precision
- * permitted by the format.
- */
-#define FLAC__MAX_QLP_COEFF_PRECISION (15u)
-
-/** The maximum order of the fixed predictors permitted by the format. */
-#define FLAC__MAX_FIXED_ORDER (4u)
-
-/** The maximum Rice partition order permitted by the format. */
-#define FLAC__MAX_RICE_PARTITION_ORDER (15u)
-
-/** The maximum Rice partition order permitted by the FLAC Subset. */
-#define FLAC__SUBSET_MAX_RICE_PARTITION_ORDER (8u)
-
-/** The version string of the release, stamped onto the libraries and binaries.
- *
- * \note
- * This does not correspond to the shared library version number, which
- * is used to determine binary compatibility.
- */
-extern FLAC_API const char *FLAC__VERSION_STRING;
-
-/** The vendor string inserted by the encoder into the VORBIS_COMMENT block.
- * This is a NUL-terminated ASCII string; when inserted into the
- * VORBIS_COMMENT the trailing null is stripped.
- */
-extern FLAC_API const char *FLAC__VENDOR_STRING;
-
-/** The byte string representation of the beginning of a FLAC stream. */
-extern FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4]; /* = "fLaC" */
-
-/** The 32-bit integer big-endian representation of the beginning of
- * a FLAC stream.
- */
-extern FLAC_API const unsigned FLAC__STREAM_SYNC; /* = 0x664C6143 */
-
-/** The length of the FLAC signature in bits. */
-extern FLAC_API const unsigned FLAC__STREAM_SYNC_LEN; /* = 32 bits */
-
-/** The length of the FLAC signature in bytes. */
-#define FLAC__STREAM_SYNC_LENGTH (4u)
-
-
-/*****************************************************************************
- *
- * Subframe structures
- *
- *****************************************************************************/
-
-/*****************************************************************************/
-
-/** An enumeration of the available entropy coding methods. */
-typedef enum {
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE = 0,
- /**< Residual is coded by partitioning into contexts, each with it's own
- * 4-bit Rice parameter. */
-
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 = 1
- /**< Residual is coded by partitioning into contexts, each with it's own
- * 5-bit Rice parameter. */
-} FLAC__EntropyCodingMethodType;
-
-/** Maps a FLAC__EntropyCodingMethodType to a C string.
- *
- * Using a FLAC__EntropyCodingMethodType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[];
-
-
-/** Contents of a Rice partitioned residual
- */
-typedef struct {
- unsigned *parameters;
- /**< The Rice parameters for each context. */
-
- unsigned *raw_bits;
- /**< Widths for escape-coded partitions. Will be non-zero for escaped
- * partitions and zero for unescaped partitions.
- */
-
- unsigned capacity_by_order;
- /**< The capacity of the \a parameters and \a raw_bits arrays
- * specified as an order, i.e. the number of array elements
- * allocated is 2 ^ \a capacity_by_order.
- */
-} FLAC__EntropyCodingMethod_PartitionedRiceContents;
-
-/** Header for a Rice partitioned residual. (c.f. <A HREF="../format.html#partitioned_rice">format specification</A>)
- */
-typedef struct {
- unsigned order;
- /**< The partition order, i.e. # of contexts = 2 ^ \a order. */
-
- const FLAC__EntropyCodingMethod_PartitionedRiceContents *contents;
- /**< The context's Rice parameters and/or raw bits. */
-
-} FLAC__EntropyCodingMethod_PartitionedRice;
-
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN; /**< == 5 (bits) */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN; /**< == 5 (bits) */
-
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-/**< == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER;
-/**< == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
-
-/** Header for the entropy coding method. (c.f. <A HREF="../format.html#residual">format specification</A>)
- */
-typedef struct {
- FLAC__EntropyCodingMethodType type;
- union {
- FLAC__EntropyCodingMethod_PartitionedRice partitioned_rice;
- } data;
-} FLAC__EntropyCodingMethod;
-
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_TYPE_LEN; /**< == 2 (bits) */
-
-/*****************************************************************************/
-
-/** An enumeration of the available subframe types. */
-typedef enum {
- FLAC__SUBFRAME_TYPE_CONSTANT = 0, /**< constant signal */
- FLAC__SUBFRAME_TYPE_VERBATIM = 1, /**< uncompressed signal */
- FLAC__SUBFRAME_TYPE_FIXED = 2, /**< fixed polynomial prediction */
- FLAC__SUBFRAME_TYPE_LPC = 3 /**< linear prediction */
-} FLAC__SubframeType;
-
-/** Maps a FLAC__SubframeType to a C string.
- *
- * Using a FLAC__SubframeType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__SubframeTypeString[];
-
-
-/** CONSTANT subframe. (c.f. <A HREF="../format.html#subframe_constant">format specification</A>)
- */
-typedef struct {
- FLAC__int32 value; /**< The constant signal value. */
-} FLAC__Subframe_Constant;
-
-
-/** VERBATIM subframe. (c.f. <A HREF="../format.html#subframe_verbatim">format specification</A>)
- */
-typedef struct {
- const FLAC__int32 *data; /**< A pointer to verbatim signal. */
-} FLAC__Subframe_Verbatim;
-
-
-/** FIXED subframe. (c.f. <A HREF="../format.html#subframe_fixed">format specification</A>)
- */
-typedef struct {
- FLAC__EntropyCodingMethod entropy_coding_method;
- /**< The residual coding method. */
-
- unsigned order;
- /**< The polynomial order. */
-
- FLAC__int32 warmup[FLAC__MAX_FIXED_ORDER];
- /**< Warmup samples to prime the predictor, length == order. */
-
- const FLAC__int32 *residual;
- /**< The residual signal, length == (blocksize minus order) samples. */
-} FLAC__Subframe_Fixed;
-
-
-/** LPC subframe. (c.f. <A HREF="../format.html#subframe_lpc">format specification</A>)
- */
-typedef struct {
- FLAC__EntropyCodingMethod entropy_coding_method;
- /**< The residual coding method. */
-
- unsigned order;
- /**< The FIR order. */
-
- unsigned qlp_coeff_precision;
- /**< Quantized FIR filter coefficient precision in bits. */
-
- int quantization_level;
- /**< The qlp coeff shift needed. */
-
- FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER];
- /**< FIR filter coefficients. */
-
- FLAC__int32 warmup[FLAC__MAX_LPC_ORDER];
- /**< Warmup samples to prime the predictor, length == order. */
-
- const FLAC__int32 *residual;
- /**< The residual signal, length == (blocksize minus order) samples. */
-} FLAC__Subframe_LPC;
-
-extern FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN; /**< == 5 (bits) */
-
-
-/** FLAC subframe structure. (c.f. <A HREF="../format.html#subframe">format specification</A>)
- */
-typedef struct {
- FLAC__SubframeType type;
- union {
- FLAC__Subframe_Constant constant;
- FLAC__Subframe_Fixed fixed;
- FLAC__Subframe_LPC lpc;
- FLAC__Subframe_Verbatim verbatim;
- } data;
- unsigned wasted_bits;
-} FLAC__Subframe;
-
-/** == 1 (bit)
- *
- * This used to be a zero-padding bit (hence the name
- * FLAC__SUBFRAME_ZERO_PAD_LEN) but is now a reserved bit. It still has a
- * mandatory value of \c 0 but in the future may take on the value \c 0 or \c 1
- * to mean something else.
- */
-extern FLAC_API const unsigned FLAC__SUBFRAME_ZERO_PAD_LEN;
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LEN; /**< == 6 (bits) */
-extern FLAC_API const unsigned FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN; /**< == 1 (bit) */
-
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK; /**< = 0x00 */
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK; /**< = 0x02 */
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK; /**< = 0x10 */
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK; /**< = 0x40 */
-
-/*****************************************************************************/
-
-
-/*****************************************************************************
- *
- * Frame structures
- *
- *****************************************************************************/
-
-/** An enumeration of the available channel assignments. */
-typedef enum {
- FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT = 0, /**< independent channels */
- FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE = 1, /**< left+side stereo */
- FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE = 2, /**< right+side stereo */
- FLAC__CHANNEL_ASSIGNMENT_MID_SIDE = 3 /**< mid+side stereo */
-} FLAC__ChannelAssignment;
-
-/** Maps a FLAC__ChannelAssignment to a C string.
- *
- * Using a FLAC__ChannelAssignment as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__ChannelAssignmentString[];
-
-/** An enumeration of the possible frame numbering methods. */
-typedef enum {
- FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER, /**< number contains the frame number */
- FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER /**< number contains the sample number of first sample in frame */
-} FLAC__FrameNumberType;
-
-/** Maps a FLAC__FrameNumberType to a C string.
- *
- * Using a FLAC__FrameNumberType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__FrameNumberTypeString[];
-
-
-/** FLAC frame header structure. (c.f. <A HREF="../format.html#frame_header">format specification</A>)
- */
-typedef struct {
- unsigned blocksize;
- /**< The number of samples per subframe. */
-
- unsigned sample_rate;
- /**< The sample rate in Hz. */
-
- unsigned channels;
- /**< The number of channels (== number of subframes). */
-
- FLAC__ChannelAssignment channel_assignment;
- /**< The channel assignment for the frame. */
-
- unsigned bits_per_sample;
- /**< The sample resolution. */
-
- FLAC__FrameNumberType number_type;
- /**< The numbering scheme used for the frame. As a convenience, the
- * decoder will always convert a frame number to a sample number because
- * the rules are complex. */
-
- union {
- FLAC__uint32 frame_number;
- FLAC__uint64 sample_number;
- } number;
- /**< The frame number or sample number of first sample in frame;
- * use the \a number_type value to determine which to use. */
-
- FLAC__uint8 crc;
- /**< CRC-8 (polynomial = x^8 + x^2 + x^1 + x^0, initialized with 0)
- * of the raw frame header bytes, meaning everything before the CRC byte
- * including the sync code.
- */
-} FLAC__FrameHeader;
-
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC; /**< == 0x3ffe; the frame header sync code */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC_LEN; /**< == 14 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_RESERVED_LEN; /**< == 1 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN; /**< == 1 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCK_SIZE_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_SAMPLE_RATE_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN; /**< == 3 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_ZERO_PAD_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_CRC_LEN; /**< == 8 (bits) */
-
-
-/** FLAC frame footer structure. (c.f. <A HREF="../format.html#frame_footer">format specification</A>)
- */
-typedef struct {
- FLAC__uint16 crc;
- /**< CRC-16 (polynomial = x^16 + x^15 + x^2 + x^0, initialized with
- * 0) of the bytes before the crc, back to and including the frame header
- * sync code.
- */
-} FLAC__FrameFooter;
-
-extern FLAC_API const unsigned FLAC__FRAME_FOOTER_CRC_LEN; /**< == 16 (bits) */
-
-
-/** FLAC frame structure. (c.f. <A HREF="../format.html#frame">format specification</A>)
- */
-typedef struct {
- FLAC__FrameHeader header;
- FLAC__Subframe subframes[FLAC__MAX_CHANNELS];
- FLAC__FrameFooter footer;
-} FLAC__Frame;
-
-/*****************************************************************************/
-
-
-/*****************************************************************************
- *
- * Meta-data structures
- *
- *****************************************************************************/
-
-/** An enumeration of the available metadata block types. */
-typedef enum {
- FLAC__METADATA_TYPE_STREAMINFO = 0,
- /**< <A HREF="../format.html#metadata_block_streaminfo">STREAMINFO</A> block */
-
- FLAC__METADATA_TYPE_PADDING = 1,
- /**< <A HREF="../format.html#metadata_block_padding">PADDING</A> block */
-
- FLAC__METADATA_TYPE_APPLICATION = 2,
- /**< <A HREF="../format.html#metadata_block_application">APPLICATION</A> block */
-
- FLAC__METADATA_TYPE_SEEKTABLE = 3,
- /**< <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block */
-
- FLAC__METADATA_TYPE_VORBIS_COMMENT = 4,
- /**< <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags) */
-
- FLAC__METADATA_TYPE_CUESHEET = 5,
- /**< <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block */
-
- FLAC__METADATA_TYPE_PICTURE = 6,
- /**< <A HREF="../format.html#metadata_block_picture">PICTURE</A> block */
-
- FLAC__METADATA_TYPE_UNDEFINED = 7
- /**< marker to denote beginning of undefined type range; this number will increase as new metadata types are added */
-
-} FLAC__MetadataType;
-
-/** Maps a FLAC__MetadataType to a C string.
- *
- * Using a FLAC__MetadataType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__MetadataTypeString[];
-
-
-/** FLAC STREAMINFO structure. (c.f. <A HREF="../format.html#metadata_block_streaminfo">format specification</A>)
- */
-typedef struct {
- unsigned min_blocksize, max_blocksize;
- unsigned min_framesize, max_framesize;
- unsigned sample_rate;
- unsigned channels;
- unsigned bits_per_sample;
- FLAC__uint64 total_samples;
- FLAC__byte md5sum[16];
-} FLAC__StreamMetadata_StreamInfo;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN; /**< == 16 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN; /**< == 16 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN; /**< == 24 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN; /**< == 24 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN; /**< == 20 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN; /**< == 3 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN; /**< == 5 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN; /**< == 36 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN; /**< == 128 (bits) */
-
-/** The total stream length of the STREAMINFO block in bytes. */
-#define FLAC__STREAM_METADATA_STREAMINFO_LENGTH (34u)
-
-/** FLAC PADDING structure. (c.f. <A HREF="../format.html#metadata_block_padding">format specification</A>)
- */
-typedef struct {
- int dummy;
- /**< Conceptually this is an empty struct since we don't store the
- * padding bytes. Empty structs are not allowed by some C compilers,
- * hence the dummy.
- */
-} FLAC__StreamMetadata_Padding;
-
-
-/** FLAC APPLICATION structure. (c.f. <A HREF="../format.html#metadata_block_application">format specification</A>)
- */
-typedef struct {
- FLAC__byte id[4];
- FLAC__byte *data;
-} FLAC__StreamMetadata_Application;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_APPLICATION_ID_LEN; /**< == 32 (bits) */
-
-/** SeekPoint structure used in SEEKTABLE blocks. (c.f. <A HREF="../format.html#seekpoint">format specification</A>)
- */
-typedef struct {
- FLAC__uint64 sample_number;
- /**< The sample number of the target frame. */
-
- FLAC__uint64 stream_offset;
- /**< The offset, in bytes, of the target frame with respect to
- * beginning of the first frame. */
-
- unsigned frame_samples;
- /**< The number of samples in the target frame. */
-} FLAC__StreamMetadata_SeekPoint;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN; /**< == 16 (bits) */
-
-/** The total stream length of a seek point in bytes. */
-#define FLAC__STREAM_METADATA_SEEKPOINT_LENGTH (18u)
-
-/** The value used in the \a sample_number field of
- * FLAC__StreamMetadataSeekPoint used to indicate a placeholder
- * point (== 0xffffffffffffffff).
- */
-extern FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
-
-
-/** FLAC SEEKTABLE structure. (c.f. <A HREF="../format.html#metadata_block_seektable">format specification</A>)
- *
- * \note From the format specification:
- * - The seek points must be sorted by ascending sample number.
- * - Each seek point's sample number must be the first sample of the
- * target frame.
- * - Each seek point's sample number must be unique within the table.
- * - Existence of a SEEKTABLE block implies a correct setting of
- * total_samples in the stream_info block.
- * - Behavior is undefined when more than one SEEKTABLE block is
- * present in a stream.
- */
-typedef struct {
- unsigned num_points;
- FLAC__StreamMetadata_SeekPoint *points;
-} FLAC__StreamMetadata_SeekTable;
-
-
-/** Vorbis comment entry structure used in VORBIS_COMMENT blocks. (c.f. <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>)
- *
- * For convenience, the APIs maintain a trailing NUL character at the end of
- * \a entry which is not counted toward \a length, i.e.
- * \code strlen(entry) == length \endcode
- */
-typedef struct {
- FLAC__uint32 length;
- FLAC__byte *entry;
-} FLAC__StreamMetadata_VorbisComment_Entry;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN; /**< == 32 (bits) */
-
-
-/** FLAC VORBIS_COMMENT structure. (c.f. <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>)
- */
-typedef struct {
- FLAC__StreamMetadata_VorbisComment_Entry vendor_string;
- FLAC__uint32 num_comments;
- FLAC__StreamMetadata_VorbisComment_Entry *comments;
-} FLAC__StreamMetadata_VorbisComment;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN; /**< == 32 (bits) */
-
-
-/** FLAC CUESHEET track index structure. (See the
- * <A HREF="../format.html#cuesheet_track_index">format specification</A> for
- * the full description of each field.)
- */
-typedef struct {
- FLAC__uint64 offset;
- /**< Offset in samples, relative to the track offset, of the index
- * point.
- */
-
- FLAC__byte number;
- /**< The index point number. */
-} FLAC__StreamMetadata_CueSheet_Index;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN; /**< == 8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN; /**< == 3*8 (bits) */
-
-
-/** FLAC CUESHEET track structure. (See the
- * <A HREF="../format.html#cuesheet_track">format specification</A> for
- * the full description of each field.)
- */
-typedef struct {
- FLAC__uint64 offset;
- /**< Track offset in samples, relative to the beginning of the FLAC audio stream. */
-
- FLAC__byte number;
- /**< The track number. */
-
- char isrc[13];
- /**< Track ISRC. This is a 12-digit alphanumeric code plus a trailing \c NUL byte */
-
- unsigned type:1;
- /**< The track type: 0 for audio, 1 for non-audio. */
-
- unsigned pre_emphasis:1;
- /**< The pre-emphasis flag: 0 for no pre-emphasis, 1 for pre-emphasis. */
-
- FLAC__byte num_indices;
- /**< The number of track index points. */
-
- FLAC__StreamMetadata_CueSheet_Index *indices;
- /**< NULL if num_indices == 0, else pointer to array of index points. */
-
-} FLAC__StreamMetadata_CueSheet_Track;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN; /**< == 8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN; /**< == 12*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN; /**< == 6+13*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN; /**< == 8 (bits) */
-
-
-/** FLAC CUESHEET structure. (See the
- * <A HREF="../format.html#metadata_block_cuesheet">format specification</A>
- * for the full description of each field.)
- */
-typedef struct {
- char media_catalog_number[129];
- /**< Media catalog number, in ASCII printable characters 0x20-0x7e. In
- * general, the media catalog number may be 0 to 128 bytes long; any
- * unused characters should be right-padded with NUL characters.
- */
-
- FLAC__uint64 lead_in;
- /**< The number of lead-in samples. */
-
- FLAC__bool is_cd;
- /**< \c true if CUESHEET corresponds to a Compact Disc, else \c false. */
-
- unsigned num_tracks;
- /**< The number of tracks. */
-
- FLAC__StreamMetadata_CueSheet_Track *tracks;
- /**< NULL if num_tracks == 0, else pointer to array of tracks. */
-
-} FLAC__StreamMetadata_CueSheet;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN; /**< == 128*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN; /**< == 7+258*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN; /**< == 8 (bits) */
-
-
-/** An enumeration of the PICTURE types (see FLAC__StreamMetadataPicture and id3 v2.4 APIC tag). */
-typedef enum {
- FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER = 0, /**< Other */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD = 1, /**< 32x32 pixels 'file icon' (PNG only) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON = 2, /**< Other file icon */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER = 3, /**< Cover (front) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_BACK_COVER = 4, /**< Cover (back) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_LEAFLET_PAGE = 5, /**< Leaflet page */
- FLAC__STREAM_METADATA_PICTURE_TYPE_MEDIA = 6, /**< Media (e.g. label side of CD) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_LEAD_ARTIST = 7, /**< Lead artist/lead performer/soloist */
- FLAC__STREAM_METADATA_PICTURE_TYPE_ARTIST = 8, /**< Artist/performer */
- FLAC__STREAM_METADATA_PICTURE_TYPE_CONDUCTOR = 9, /**< Conductor */
- FLAC__STREAM_METADATA_PICTURE_TYPE_BAND = 10, /**< Band/Orchestra */
- FLAC__STREAM_METADATA_PICTURE_TYPE_COMPOSER = 11, /**< Composer */
- FLAC__STREAM_METADATA_PICTURE_TYPE_LYRICIST = 12, /**< Lyricist/text writer */
- FLAC__STREAM_METADATA_PICTURE_TYPE_RECORDING_LOCATION = 13, /**< Recording Location */
- FLAC__STREAM_METADATA_PICTURE_TYPE_DURING_RECORDING = 14, /**< During recording */
- FLAC__STREAM_METADATA_PICTURE_TYPE_DURING_PERFORMANCE = 15, /**< During performance */
- FLAC__STREAM_METADATA_PICTURE_TYPE_VIDEO_SCREEN_CAPTURE = 16, /**< Movie/video screen capture */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FISH = 17, /**< A bright coloured fish */
- FLAC__STREAM_METADATA_PICTURE_TYPE_ILLUSTRATION = 18, /**< Illustration */
- FLAC__STREAM_METADATA_PICTURE_TYPE_BAND_LOGOTYPE = 19, /**< Band/artist logotype */
- FLAC__STREAM_METADATA_PICTURE_TYPE_PUBLISHER_LOGOTYPE = 20, /**< Publisher/Studio logotype */
- FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED
-} FLAC__StreamMetadata_Picture_Type;
-
-/** Maps a FLAC__StreamMetadata_Picture_Type to a C string.
- *
- * Using a FLAC__StreamMetadata_Picture_Type as the index to this array
- * will give the string equivalent. The contents should not be
- * modified.
- */
-extern FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[];
-
-/** FLAC PICTURE structure. (See the
- * <A HREF="../format.html#metadata_block_picture">format specification</A>
- * for the full description of each field.)
- */
-typedef struct {
- FLAC__StreamMetadata_Picture_Type type;
- /**< The kind of picture stored. */
-
- char *mime_type;
- /**< Picture data's MIME type, in ASCII printable characters
- * 0x20-0x7e, NUL terminated. For best compatibility with players,
- * use picture data of MIME type \c image/jpeg or \c image/png. A
- * MIME type of '-->' is also allowed, in which case the picture
- * data should be a complete URL. In file storage, the MIME type is
- * stored as a 32-bit length followed by the ASCII string with no NUL
- * terminator, but is converted to a plain C string in this structure
- * for convenience.
- */
-
- FLAC__byte *description;
- /**< Picture's description in UTF-8, NUL terminated. In file storage,
- * the description is stored as a 32-bit length followed by the UTF-8
- * string with no NUL terminator, but is converted to a plain C string
- * in this structure for convenience.
- */
-
- FLAC__uint32 width;
- /**< Picture's width in pixels. */
-
- FLAC__uint32 height;
- /**< Picture's height in pixels. */
-
- FLAC__uint32 depth;
- /**< Picture's color depth in bits-per-pixel. */
-
- FLAC__uint32 colors;
- /**< For indexed palettes (like GIF), picture's number of colors (the
- * number of palette entries), or \c 0 for non-indexed (i.e. 2^depth).
- */
-
- FLAC__uint32 data_length;
- /**< Length of binary picture data in bytes. */
-
- FLAC__byte *data;
- /**< Binary picture data. */
-
-} FLAC__StreamMetadata_Picture;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_TYPE_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_COLORS_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN; /**< == 32 (bits) */
-
-
-/** Structure that is used when a metadata block of unknown type is loaded.
- * The contents are opaque. The structure is used only internally to
- * correctly handle unknown metadata.
- */
-typedef struct {
- FLAC__byte *data;
-} FLAC__StreamMetadata_Unknown;
-
-
-/** FLAC metadata block structure. (c.f. <A HREF="../format.html#metadata_block">format specification</A>)
- */
-typedef struct {
- FLAC__MetadataType type;
- /**< The type of the metadata block; used determine which member of the
- * \a data union to dereference. If type >= FLAC__METADATA_TYPE_UNDEFINED
- * then \a data.unknown must be used. */
-
- FLAC__bool is_last;
- /**< \c true if this metadata block is the last, else \a false */
-
- unsigned length;
- /**< Length, in bytes, of the block data as it appears in the stream. */
-
- union {
- FLAC__StreamMetadata_StreamInfo stream_info;
- FLAC__StreamMetadata_Padding padding;
- FLAC__StreamMetadata_Application application;
- FLAC__StreamMetadata_SeekTable seek_table;
- FLAC__StreamMetadata_VorbisComment vorbis_comment;
- FLAC__StreamMetadata_CueSheet cue_sheet;
- FLAC__StreamMetadata_Picture picture;
- FLAC__StreamMetadata_Unknown unknown;
- } data;
- /**< Polymorphic block data; use the \a type value to determine which
- * to use. */
-} FLAC__StreamMetadata;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_IS_LAST_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_TYPE_LEN; /**< == 7 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_LENGTH_LEN; /**< == 24 (bits) */
-
-/** The total stream length of a metadata block header in bytes. */
-#define FLAC__STREAM_METADATA_HEADER_LENGTH (4u)
-
-/*****************************************************************************/
-
-
-/*****************************************************************************
- *
- * Utility functions
- *
- *****************************************************************************/
-
-/** Tests that a sample rate is valid for FLAC.
- *
- * \param sample_rate The sample rate to test for compliance.
- * \retval FLAC__bool
- * \c true if the given sample rate conforms to the specification, else
- * \c false.
- */
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(unsigned sample_rate);
-
-/** Tests that a sample rate is valid for the FLAC subset. The subset rules
- * for valid sample rates are slightly more complex since the rate has to
- * be expressible completely in the frame header.
- *
- * \param sample_rate The sample rate to test for compliance.
- * \retval FLAC__bool
- * \c true if the given sample rate conforms to the specification for the
- * subset, else \c false.
- */
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(unsigned sample_rate);
-
-/** Check a Vorbis comment entry name to see if it conforms to the Vorbis
- * comment specification.
- *
- * Vorbis comment names must be composed only of characters from
- * [0x20-0x3C,0x3E-0x7D].
- *
- * \param name A NUL-terminated string to be checked.
- * \assert
- * \code name != NULL \endcode
- * \retval FLAC__bool
- * \c false if entry name is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name);
-
-/** Check a Vorbis comment entry value to see if it conforms to the Vorbis
- * comment specification.
- *
- * Vorbis comment values must be valid UTF-8 sequences.
- *
- * \param value A string to be checked.
- * \param length A the length of \a value in bytes. May be
- * \c (unsigned)(-1) to indicate that \a value is a plain
- * UTF-8 NUL-terminated string.
- * \assert
- * \code value != NULL \endcode
- * \retval FLAC__bool
- * \c false if entry name is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, unsigned length);
-
-/** Check a Vorbis comment entry to see if it conforms to the Vorbis
- * comment specification.
- *
- * Vorbis comment entries must be of the form 'name=value', and 'name' and
- * 'value' must be legal according to
- * FLAC__format_vorbiscomment_entry_name_is_legal() and
- * FLAC__format_vorbiscomment_entry_value_is_legal() respectively.
- *
- * \param entry An entry to be checked.
- * \param length The length of \a entry in bytes.
- * \assert
- * \code value != NULL \endcode
- * \retval FLAC__bool
- * \c false if entry name is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, unsigned length);
-
-/** Check a seek table to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * seek table.
- *
- * \param seek_table A pointer to a seek table to be checked.
- * \assert
- * \code seek_table != NULL \endcode
- * \retval FLAC__bool
- * \c false if seek table is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table);
-
-/** Sort a seek table's seek points according to the format specification.
- * This includes a "unique-ification" step to remove duplicates, i.e.
- * seek points with identical \a sample_number values. Duplicate seek
- * points are converted into placeholder points and sorted to the end of
- * the table.
- *
- * \param seek_table A pointer to a seek table to be sorted.
- * \assert
- * \code seek_table != NULL \endcode
- * \retval unsigned
- * The number of duplicate seek points converted into placeholders.
- */
-FLAC_API unsigned FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table);
-
-/** Check a cue sheet to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * cue sheet.
- *
- * \param cue_sheet A pointer to an existing cue sheet to be checked.
- * \param check_cd_da_subset If \c true, check CUESHEET against more
- * stringent requirements for a CD-DA (audio) disc.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code cue_sheet != NULL \endcode
- * \retval FLAC__bool
- * \c false if cue sheet is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation);
-
-/** Check picture data to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * PICTURE block.
- *
- * \param picture A pointer to existing picture data to be checked.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code picture != NULL \endcode
- * \retval FLAC__bool
- * \c false if picture data is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/metadata.h b/src/lib/libflac/include/FLAC/metadata.h
deleted file mode 100644
index 9d71ca378ae..00000000000
--- a/src/lib/libflac/include/FLAC/metadata.h
+++ /dev/null
@@ -1,2180 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__METADATA_H
-#define FLAC__METADATA_H
-
-#include <sys/types.h> /* for off_t */
-#include "export.h"
-#include "callback.h"
-#include "format.h"
-
-/* --------------------------------------------------------------------
- (For an example of how all these routines are used, see the source
- code for the unit tests in src/test_libFLAC/metadata_*.c, or
- metaflac in src/metaflac/)
- ------------------------------------------------------------------*/
-
-/** \file include/FLAC/metadata.h
- *
- * \brief
- * This module provides functions for creating and manipulating FLAC
- * metadata blocks in memory, and three progressively more powerful
- * interfaces for traversing and editing metadata in FLAC files.
- *
- * See the detailed documentation for each interface in the
- * \link flac_metadata metadata \endlink module.
- */
-
-/** \defgroup flac_metadata FLAC/metadata.h: metadata interfaces
- * \ingroup flac
- *
- * \brief
- * This module provides functions for creating and manipulating FLAC
- * metadata blocks in memory, and three progressively more powerful
- * interfaces for traversing and editing metadata in native FLAC files.
- * Note that currently only the Chain interface (level 2) supports Ogg
- * FLAC files, and it is read-only i.e. no writing back changed
- * metadata to file.
- *
- * There are three metadata interfaces of increasing complexity:
- *
- * Level 0:
- * Read-only access to the STREAMINFO, VORBIS_COMMENT, CUESHEET, and
- * PICTURE blocks.
- *
- * Level 1:
- * Read-write access to all metadata blocks. This level is write-
- * efficient in most cases (more on this below), and uses less memory
- * than level 2.
- *
- * Level 2:
- * Read-write access to all metadata blocks. This level is write-
- * efficient in all cases, but uses more memory since all metadata for
- * the whole file is read into memory and manipulated before writing
- * out again.
- *
- * What do we mean by efficient? Since FLAC metadata appears at the
- * beginning of the file, when writing metadata back to a FLAC file
- * it is possible to grow or shrink the metadata such that the entire
- * file must be rewritten. However, if the size remains the same during
- * changes or PADDING blocks are utilized, only the metadata needs to be
- * overwritten, which is much faster.
- *
- * Efficient means the whole file is rewritten at most one time, and only
- * when necessary. Level 1 is not efficient only in the case that you
- * cause more than one metadata block to grow or shrink beyond what can
- * be accomodated by padding. In this case you should probably use level
- * 2, which allows you to edit all the metadata for a file in memory and
- * write it out all at once.
- *
- * All levels know how to skip over and not disturb an ID3v2 tag at the
- * front of the file.
- *
- * All levels access files via their filenames. In addition, level 2
- * has additional alternative read and write functions that take an I/O
- * handle and callbacks, for situations where access by filename is not
- * possible.
- *
- * In addition to the three interfaces, this module defines functions for
- * creating and manipulating various metadata objects in memory. As we see
- * from the Format module, FLAC metadata blocks in memory are very primitive
- * structures for storing information in an efficient way. Reading
- * information from the structures is easy but creating or modifying them
- * directly is more complex. The metadata object routines here facilitate
- * this by taking care of the consistency and memory management drudgery.
- *
- * Unless you will be using the level 1 or 2 interfaces to modify existing
- * metadata however, you will not probably not need these.
- *
- * From a dependency standpoint, none of the encoders or decoders require
- * the metadata module. This is so that embedded users can strip out the
- * metadata module from libFLAC to reduce the size and complexity.
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** \defgroup flac_metadata_level0 FLAC/metadata.h: metadata level 0 interface
- * \ingroup flac_metadata
- *
- * \brief
- * The level 0 interface consists of individual routines to read the
- * STREAMINFO, VORBIS_COMMENT, CUESHEET, and PICTURE blocks, requiring
- * only a filename.
- *
- * They try to skip any ID3v2 tag at the head of the file.
- *
- * \{
- */
-
-/** Read the STREAMINFO metadata block of the given FLAC file. This function
- * will try to skip any ID3v2 tag at the head of the file.
- *
- * \param filename The path to the FLAC file to read.
- * \param streaminfo A pointer to space for the STREAMINFO block. Since
- * FLAC__StreamMetadata is a simple structure with no
- * memory allocation involved, you pass the address of
- * an existing structure. It need not be initialized.
- * \assert
- * \code filename != NULL \endcode
- * \code streaminfo != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid STREAMINFO block was read from \a filename. Returns
- * \c false if there was a memory allocation error, a file decoder error,
- * or the file contained no STREAMINFO block. (A memory allocation error
- * is possible because this function must set up a file decoder.)
- */
-FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo);
-
-/** Read the VORBIS_COMMENT metadata block of the given FLAC file. This
- * function will try to skip any ID3v2 tag at the head of the file.
- *
- * \param filename The path to the FLAC file to read.
- * \param tags The address where the returned pointer will be
- * stored. The \a tags object must be deleted by
- * the caller using FLAC__metadata_object_delete().
- * \assert
- * \code filename != NULL \endcode
- * \code tags != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid VORBIS_COMMENT block was read from \a filename,
- * and \a *tags will be set to the address of the metadata structure.
- * Returns \c false if there was a memory allocation error, a file
- * decoder error, or the file contained no VORBIS_COMMENT block, and
- * \a *tags will be set to \c NULL.
- */
-FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags);
-
-/** Read the CUESHEET metadata block of the given FLAC file. This
- * function will try to skip any ID3v2 tag at the head of the file.
- *
- * \param filename The path to the FLAC file to read.
- * \param cuesheet The address where the returned pointer will be
- * stored. The \a cuesheet object must be deleted by
- * the caller using FLAC__metadata_object_delete().
- * \assert
- * \code filename != NULL \endcode
- * \code cuesheet != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid CUESHEET block was read from \a filename,
- * and \a *cuesheet will be set to the address of the metadata
- * structure. Returns \c false if there was a memory allocation
- * error, a file decoder error, or the file contained no CUESHEET
- * block, and \a *cuesheet will be set to \c NULL.
- */
-FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet);
-
-/** Read a PICTURE metadata block of the given FLAC file. This
- * function will try to skip any ID3v2 tag at the head of the file.
- * Since there can be more than one PICTURE block in a file, this
- * function takes a number of parameters that act as constraints to
- * the search. The PICTURE block with the largest area matching all
- * the constraints will be returned, or \a *picture will be set to
- * \c NULL if there was no such block.
- *
- * \param filename The path to the FLAC file to read.
- * \param picture The address where the returned pointer will be
- * stored. The \a picture object must be deleted by
- * the caller using FLAC__metadata_object_delete().
- * \param type The desired picture type. Use \c -1 to mean
- * "any type".
- * \param mime_type The desired MIME type, e.g. "image/jpeg". The
- * string will be matched exactly. Use \c NULL to
- * mean "any MIME type".
- * \param description The desired description. The string will be
- * matched exactly. Use \c NULL to mean "any
- * description".
- * \param max_width The maximum width in pixels desired. Use
- * \c (unsigned)(-1) to mean "any width".
- * \param max_height The maximum height in pixels desired. Use
- * \c (unsigned)(-1) to mean "any height".
- * \param max_depth The maximum color depth in bits-per-pixel desired.
- * Use \c (unsigned)(-1) to mean "any depth".
- * \param max_colors The maximum number of colors desired. Use
- * \c (unsigned)(-1) to mean "any number of colors".
- * \assert
- * \code filename != NULL \endcode
- * \code picture != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid PICTURE block was read from \a filename,
- * and \a *picture will be set to the address of the metadata
- * structure. Returns \c false if there was a memory allocation
- * error, a file decoder error, or the file contained no PICTURE
- * block, and \a *picture will be set to \c NULL.
- */
-FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors);
-
-/* \} */
-
-
-/** \defgroup flac_metadata_level1 FLAC/metadata.h: metadata level 1 interface
- * \ingroup flac_metadata
- *
- * \brief
- * The level 1 interface provides read-write access to FLAC file metadata and
- * operates directly on the FLAC file.
- *
- * The general usage of this interface is:
- *
- * - Create an iterator using FLAC__metadata_simple_iterator_new()
- * - Attach it to a file using FLAC__metadata_simple_iterator_init() and check
- * the exit code. Call FLAC__metadata_simple_iterator_is_writable() to
- * see if the file is writable, or only read access is allowed.
- * - Use FLAC__metadata_simple_iterator_next() and
- * FLAC__metadata_simple_iterator_prev() to traverse the blocks.
- * This is does not read the actual blocks themselves.
- * FLAC__metadata_simple_iterator_next() is relatively fast.
- * FLAC__metadata_simple_iterator_prev() is slower since it needs to search
- * forward from the front of the file.
- * - Use FLAC__metadata_simple_iterator_get_block_type() or
- * FLAC__metadata_simple_iterator_get_block() to access the actual data at
- * the current iterator position. The returned object is yours to modify
- * and free.
- * - Use FLAC__metadata_simple_iterator_set_block() to write a modified block
- * back. You must have write permission to the original file. Make sure to
- * read the whole comment to FLAC__metadata_simple_iterator_set_block()
- * below.
- * - Use FLAC__metadata_simple_iterator_insert_block_after() to add new blocks.
- * Use the object creation functions from
- * \link flac_metadata_object here \endlink to generate new objects.
- * - Use FLAC__metadata_simple_iterator_delete_block() to remove the block
- * currently referred to by the iterator, or replace it with padding.
- * - Destroy the iterator with FLAC__metadata_simple_iterator_delete() when
- * finished.
- *
- * \note
- * The FLAC file remains open the whole time between
- * FLAC__metadata_simple_iterator_init() and
- * FLAC__metadata_simple_iterator_delete(), so make sure you are not altering
- * the file during this time.
- *
- * \note
- * Do not modify the \a is_last, \a length, or \a type fields of returned
- * FLAC__StreamMetadata objects. These are managed automatically.
- *
- * \note
- * If any of the modification functions
- * (FLAC__metadata_simple_iterator_set_block(),
- * FLAC__metadata_simple_iterator_delete_block(),
- * FLAC__metadata_simple_iterator_insert_block_after(), etc.) return \c false,
- * you should delete the iterator as it may no longer be valid.
- *
- * \{
- */
-
-struct FLAC__Metadata_SimpleIterator;
-/** The opaque structure definition for the level 1 iterator type.
- * See the
- * \link flac_metadata_level1 metadata level 1 module \endlink
- * for a detailed description.
- */
-typedef struct FLAC__Metadata_SimpleIterator FLAC__Metadata_SimpleIterator;
-
-/** Status type for FLAC__Metadata_SimpleIterator.
- *
- * The iterator's current status can be obtained by calling FLAC__metadata_simple_iterator_status().
- */
-typedef enum {
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK = 0,
- /**< The iterator is in the normal OK state */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT,
- /**< The data passed into a function violated the function's usage criteria */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE,
- /**< The iterator could not open the target file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE,
- /**< The iterator could not find the FLAC signature at the start of the file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE,
- /**< The iterator tried to write to a file that was not writable */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA,
- /**< The iterator encountered input that does not conform to the FLAC metadata specification */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR,
- /**< The iterator encountered an error while reading the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR,
- /**< The iterator encountered an error while seeking in the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR,
- /**< The iterator encountered an error while writing the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR,
- /**< The iterator encountered an error renaming the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR,
- /**< The iterator encountered an error removing the temporary file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR,
- /**< Memory allocation failed */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR
- /**< The caller violated an assertion or an unexpected error occurred */
-
-} FLAC__Metadata_SimpleIteratorStatus;
-
-/** Maps a FLAC__Metadata_SimpleIteratorStatus to a C string.
- *
- * Using a FLAC__Metadata_SimpleIteratorStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__Metadata_SimpleIteratorStatusString[];
-
-
-/** Create a new iterator instance.
- *
- * \retval FLAC__Metadata_SimpleIterator*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void);
-
-/** Free an iterator instance. Deletes the object pointed to by \a iterator.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- */
-FLAC_API void FLAC__metadata_simple_iterator_delete(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the current status of the iterator. Call this after a function
- * returns \c false to get the reason for the error. Also resets the status
- * to FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \retval FLAC__Metadata_SimpleIteratorStatus
- * The current status of the iterator.
- */
-FLAC_API FLAC__Metadata_SimpleIteratorStatus FLAC__metadata_simple_iterator_status(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Initialize the iterator to point to the first metadata block in the
- * given FLAC file.
- *
- * \param iterator A pointer to an existing iterator.
- * \param filename The path to the FLAC file.
- * \param read_only If \c true, the FLAC file will be opened
- * in read-only mode; if \c false, the FLAC
- * file will be opened for edit even if no
- * edits are performed.
- * \param preserve_file_stats If \c true, the owner and modification
- * time will be preserved even if the FLAC
- * file is written to.
- * \assert
- * \code iterator != NULL \endcode
- * \code filename != NULL \endcode
- * \retval FLAC__bool
- * \c false if a memory allocation error occurs, the file can't be
- * opened, or another error occurs, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool read_only, FLAC__bool preserve_file_stats);
-
-/** Returns \c true if the FLAC file is writable. If \c false, calls to
- * FLAC__metadata_simple_iterator_set_block() and
- * FLAC__metadata_simple_iterator_insert_block_after() will fail.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \retval FLAC__bool
- * See above.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_writable(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Moves the iterator forward one metadata block, returning \c false if
- * already at the end.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the last metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Moves the iterator backward one metadata block, returning \c false if
- * already at the beginning.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the first metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Returns a flag telling if the current metadata block is the last.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c true if the current metadata block is the last in the file,
- * else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the offset of the metadata block at the current position. This
- * avoids reading the actual block data which can save time for large
- * blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval off_t
- * The offset of the metadata block at the current iterator position.
- * This is the byte offset relative to the beginning of the file of
- * the current metadata block's header.
- */
-FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the type of the metadata block at the current position. This
- * avoids reading the actual block data which can save time for large
- * blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__MetadataType
- * The type of the metadata block at the current iterator position.
- */
-FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the length of the metadata block at the current position. This
- * avoids reading the actual block data which can save time for large
- * blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval unsigned
- * The length of the metadata block at the current iterator position.
- * The is same length as that in the
- * <a href="http://flac.sourceforge.net/format.html#metadata_block_header">metadata block header</a>,
- * i.e. the length of the metadata body that follows the header.
- */
-FLAC_API unsigned FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the application ID of the \c APPLICATION block at the current
- * position. This avoids reading the actual block data which can save
- * time for large blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param id A pointer to a buffer of at least \c 4 bytes where
- * the ID will be stored.
- * \assert
- * \code iterator != NULL \endcode
- * \code id != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c true if the ID was successfully read, else \c false, in which
- * case you should check FLAC__metadata_simple_iterator_status() to
- * find out why. If the status is
- * \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT, then the
- * current metadata block is not an \c APPLICATION block. Otherwise
- * if the status is
- * \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR or
- * \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR, an I/O error
- * occurred and the iterator can no longer be used.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id);
-
-/** Get the metadata block at the current position. You can modify the
- * block but must use FLAC__metadata_simple_iterator_set_block() to
- * write it back to the FLAC file.
- *
- * You must call FLAC__metadata_object_delete() on the returned object
- * when you are finished with it.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__StreamMetadata*
- * The current metadata block, or \c NULL if there was a memory
- * allocation error.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Write a block back to the FLAC file. This function tries to be
- * as efficient as possible; how the block is actually written is
- * shown by the following:
- *
- * Existing block is a STREAMINFO block and the new block is a
- * STREAMINFO block: the new block is written in place. Make sure
- * you know what you're doing when changing the values of a
- * STREAMINFO block.
- *
- * Existing block is a STREAMINFO block and the new block is a
- * not a STREAMINFO block: this is an error since the first block
- * must be a STREAMINFO block. Returns \c false without altering the
- * file.
- *
- * Existing block is not a STREAMINFO block and the new block is a
- * STREAMINFO block: this is an error since there may be only one
- * STREAMINFO block. Returns \c false without altering the file.
- *
- * Existing block and new block are the same length: the existing
- * block will be replaced by the new block, written in place.
- *
- * Existing block is longer than new block: if use_padding is \c true,
- * the existing block will be overwritten in place with the new
- * block followed by a PADDING block, if possible, to make the total
- * size the same as the existing block. Remember that a padding
- * block requires at least four bytes so if the difference in size
- * between the new block and existing block is less than that, the
- * entire file will have to be rewritten, using the new block's
- * exact size. If use_padding is \c false, the entire file will be
- * rewritten, replacing the existing block by the new block.
- *
- * Existing block is shorter than new block: if use_padding is \c true,
- * the function will try and expand the new block into the following
- * PADDING block, if it exists and doing so won't shrink the PADDING
- * block to less than 4 bytes. If there is no following PADDING
- * block, or it will shrink to less than 4 bytes, or use_padding is
- * \c false, the entire file is rewritten, replacing the existing block
- * with the new block. Note that in this case any following PADDING
- * block is preserved as is.
- *
- * After writing the block, the iterator will remain in the same
- * place, i.e. pointing to the new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block The block to set.
- * \param use_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \code block != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding);
-
-/** This is similar to FLAC__metadata_simple_iterator_set_block()
- * except that instead of writing over an existing block, it appends
- * a block after the existing block. \a use_padding is again used to
- * tell the function to try an expand into following padding in an
- * attempt to avoid rewriting the entire file.
- *
- * This function will fail and return \c false if given a STREAMINFO
- * block.
- *
- * After writing the block, the iterator will be pointing to the
- * new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block The block to set.
- * \param use_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \code block != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_insert_block_after(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding);
-
-/** Deletes the block at the current position. This will cause the
- * entire FLAC file to be rewritten, unless \a use_padding is \c true,
- * in which case the block will be replaced by an equal-sized PADDING
- * block. The iterator will be left pointing to the block before the
- * one just deleted.
- *
- * You may not delete the STREAMINFO block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param use_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding);
-
-/* \} */
-
-
-/** \defgroup flac_metadata_level2 FLAC/metadata.h: metadata level 2 interface
- * \ingroup flac_metadata
- *
- * \brief
- * The level 2 interface provides read-write access to FLAC file metadata;
- * all metadata is read into memory, operated on in memory, and then written
- * to file, which is more efficient than level 1 when editing multiple blocks.
- *
- * Currently Ogg FLAC is supported for read only, via
- * FLAC__metadata_chain_read_ogg() but a subsequent
- * FLAC__metadata_chain_write() will fail.
- *
- * The general usage of this interface is:
- *
- * - Create a new chain using FLAC__metadata_chain_new(). A chain is a
- * linked list of FLAC metadata blocks.
- * - Read all metadata into the chain from a FLAC file using
- * FLAC__metadata_chain_read() or FLAC__metadata_chain_read_ogg() and
- * check the status.
- * - Optionally, consolidate the padding using
- * FLAC__metadata_chain_merge_padding() or
- * FLAC__metadata_chain_sort_padding().
- * - Create a new iterator using FLAC__metadata_iterator_new()
- * - Initialize the iterator to point to the first element in the chain
- * using FLAC__metadata_iterator_init()
- * - Traverse the chain using FLAC__metadata_iterator_next and
- * FLAC__metadata_iterator_prev().
- * - Get a block for reading or modification using
- * FLAC__metadata_iterator_get_block(). The pointer to the object
- * inside the chain is returned, so the block is yours to modify.
- * Changes will be reflected in the FLAC file when you write the
- * chain. You can also add and delete blocks (see functions below).
- * - When done, write out the chain using FLAC__metadata_chain_write().
- * Make sure to read the whole comment to the function below.
- * - Delete the chain using FLAC__metadata_chain_delete().
- *
- * \note
- * Even though the FLAC file is not open while the chain is being
- * manipulated, you must not alter the file externally during
- * this time. The chain assumes the FLAC file will not change
- * between the time of FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg()
- * and FLAC__metadata_chain_write().
- *
- * \note
- * Do not modify the is_last, length, or type fields of returned
- * FLAC__StreamMetadata objects. These are managed automatically.
- *
- * \note
- * The metadata objects returned by FLAC__metadata_iterator_get_block()
- * are owned by the chain; do not FLAC__metadata_object_delete() them.
- * In the same way, blocks passed to FLAC__metadata_iterator_set_block()
- * become owned by the chain and they will be deleted when the chain is
- * deleted.
- *
- * \{
- */
-
-struct FLAC__Metadata_Chain;
-/** The opaque structure definition for the level 2 chain type.
- */
-typedef struct FLAC__Metadata_Chain FLAC__Metadata_Chain;
-
-struct FLAC__Metadata_Iterator;
-/** The opaque structure definition for the level 2 iterator type.
- */
-typedef struct FLAC__Metadata_Iterator FLAC__Metadata_Iterator;
-
-typedef enum {
- FLAC__METADATA_CHAIN_STATUS_OK = 0,
- /**< The chain is in the normal OK state */
-
- FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT,
- /**< The data passed into a function violated the function's usage criteria */
-
- FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE,
- /**< The chain could not open the target file */
-
- FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE,
- /**< The chain could not find the FLAC signature at the start of the file */
-
- FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE,
- /**< The chain tried to write to a file that was not writable */
-
- FLAC__METADATA_CHAIN_STATUS_BAD_METADATA,
- /**< The chain encountered input that does not conform to the FLAC metadata specification */
-
- FLAC__METADATA_CHAIN_STATUS_READ_ERROR,
- /**< The chain encountered an error while reading the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR,
- /**< The chain encountered an error while seeking in the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR,
- /**< The chain encountered an error while writing the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR,
- /**< The chain encountered an error renaming the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR,
- /**< The chain encountered an error removing the temporary file */
-
- FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR,
- /**< Memory allocation failed */
-
- FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR,
- /**< The caller violated an assertion or an unexpected error occurred */
-
- FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS,
- /**< One or more of the required callbacks was NULL */
-
- FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH,
- /**< FLAC__metadata_chain_write() was called on a chain read by
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
- * or
- * FLAC__metadata_chain_write_with_callbacks()/FLAC__metadata_chain_write_with_callbacks_and_tempfile()
- * was called on a chain read by
- * FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
- * Matching read/write methods must always be used. */
-
- FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL
- /**< FLAC__metadata_chain_write_with_callbacks() was called when the
- * chain write requires a tempfile; use
- * FLAC__metadata_chain_write_with_callbacks_and_tempfile() instead.
- * Or, FLAC__metadata_chain_write_with_callbacks_and_tempfile() was
- * called when the chain write does not require a tempfile; use
- * FLAC__metadata_chain_write_with_callbacks() instead.
- * Always check FLAC__metadata_chain_check_if_tempfile_needed()
- * before writing via callbacks. */
-
-} FLAC__Metadata_ChainStatus;
-
-/** Maps a FLAC__Metadata_ChainStatus to a C string.
- *
- * Using a FLAC__Metadata_ChainStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__Metadata_ChainStatusString[];
-
-/*********** FLAC__Metadata_Chain ***********/
-
-/** Create a new chain instance.
- *
- * \retval FLAC__Metadata_Chain*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void);
-
-/** Free a chain instance. Deletes the object pointed to by \a chain.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain);
-
-/** Get the current status of the chain. Call this after a function
- * returns \c false to get the reason for the error. Also resets the
- * status to FLAC__METADATA_CHAIN_STATUS_OK.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__Metadata_ChainStatus
- * The current status of the chain.
- */
-FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain);
-
-/** Read all metadata from a FLAC file into the chain.
- *
- * \param chain A pointer to an existing chain.
- * \param filename The path to the FLAC file to read.
- * \assert
- * \code chain != NULL \endcode
- * \code filename != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a filename, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename);
-
-/** Read all metadata from an Ogg FLAC file into the chain.
- *
- * \note Ogg FLAC metadata data writing is not supported yet and
- * FLAC__metadata_chain_write() will fail.
- *
- * \param chain A pointer to an existing chain.
- * \param filename The path to the Ogg FLAC file to read.
- * \assert
- * \code chain != NULL \endcode
- * \code filename != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a filename, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename);
-
-/** Read all metadata from a FLAC stream into the chain via I/O callbacks.
- *
- * The \a handle need only be open for reading, but must be seekable.
- * The equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
- * for Windows).
- *
- * \param chain A pointer to an existing chain.
- * \param handle The I/O handle of the FLAC stream to read. The
- * handle will NOT be closed after the metadata is read;
- * that is the duty of the caller.
- * \param callbacks
- * A set of callbacks to use for I/O. The mandatory
- * callbacks are \a read, \a seek, and \a tell.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a handle, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
-
-/** Read all metadata from an Ogg FLAC stream into the chain via I/O callbacks.
- *
- * The \a handle need only be open for reading, but must be seekable.
- * The equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
- * for Windows).
- *
- * \note Ogg FLAC metadata data writing is not supported yet and
- * FLAC__metadata_chain_write() will fail.
- *
- * \param chain A pointer to an existing chain.
- * \param handle The I/O handle of the Ogg FLAC stream to read. The
- * handle will NOT be closed after the metadata is read;
- * that is the duty of the caller.
- * \param callbacks
- * A set of callbacks to use for I/O. The mandatory
- * callbacks are \a read, \a seek, and \a tell.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a handle, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
-
-/** Checks if writing the given chain would require the use of a
- * temporary file, or if it could be written in place.
- *
- * Under certain conditions, padding can be utilized so that writing
- * edited metadata back to the FLAC file does not require rewriting the
- * entire file. If rewriting is required, then a temporary workfile is
- * required. When writing metadata using callbacks, you must check
- * this function to know whether to call
- * FLAC__metadata_chain_write_with_callbacks() or
- * FLAC__metadata_chain_write_with_callbacks_and_tempfile(). When
- * writing with FLAC__metadata_chain_write(), the temporary file is
- * handled internally.
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding
- * Whether or not padding will be allowed to be used
- * during the write. The value of \a use_padding given
- * here must match the value later passed to
- * FLAC__metadata_chain_write_with_callbacks() or
- * FLAC__metadata_chain_write_with_callbacks_with_tempfile().
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if writing the current chain would require a tempfile, or
- * \c false if metadata can be written in place.
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding);
-
-/** Write all metadata out to the FLAC file. This function tries to be as
- * efficient as possible; how the metadata is actually written is shown by
- * the following:
- *
- * If the current chain is the same size as the existing metadata, the new
- * data is written in place.
- *
- * If the current chain is longer than the existing metadata, and
- * \a use_padding is \c true, and the last block is a PADDING block of
- * sufficient length, the function will truncate the final padding block
- * so that the overall size of the metadata is the same as the existing
- * metadata, and then just rewrite the metadata. Otherwise, if not all of
- * the above conditions are met, the entire FLAC file must be rewritten.
- * If you want to use padding this way it is a good idea to call
- * FLAC__metadata_chain_sort_padding() first so that you have the maximum
- * amount of padding to work with, unless you need to preserve ordering
- * of the PADDING blocks for some reason.
- *
- * If the current chain is shorter than the existing metadata, and
- * \a use_padding is \c true, and the final block is a PADDING block, the padding
- * is extended to make the overall size the same as the existing data. If
- * \a use_padding is \c true and the last block is not a PADDING block, a new
- * PADDING block is added to the end of the new data to make it the same
- * size as the existing data (if possible, see the note to
- * FLAC__metadata_simple_iterator_set_block() about the four byte limit)
- * and the new data is written in place. If none of the above apply or
- * \a use_padding is \c false, the entire FLAC file is rewritten.
- *
- * If \a preserve_file_stats is \c true, the owner and modification time will
- * be preserved even if the FLAC file is written.
- *
- * For this write function to be used, the chain must have been read with
- * FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg(), not
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks().
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding See above.
- * \param preserve_file_stats See above.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if the write succeeded, else \c false. On failure,
- * check the status with FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats);
-
-/** Write all metadata out to a FLAC stream via callbacks.
- *
- * (See FLAC__metadata_chain_write() for the details on how padding is
- * used to write metadata in place if possible.)
- *
- * The \a handle must be open for updating and be seekable. The
- * equivalent minimum stdio fopen() file mode is \c "r+" (or \c "r+b"
- * for Windows).
- *
- * For this write function to be used, the chain must have been read with
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
- * not FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
- * Also, FLAC__metadata_chain_check_if_tempfile_needed() must have returned
- * \c false.
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding See FLAC__metadata_chain_write()
- * \param handle The I/O handle of the FLAC stream to write. The
- * handle will NOT be closed after the metadata is
- * written; that is the duty of the caller.
- * \param callbacks A set of callbacks to use for I/O. The mandatory
- * callbacks are \a write and \a seek.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if the write succeeded, else \c false. On failure,
- * check the status with FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
-
-/** Write all metadata out to a FLAC stream via callbacks.
- *
- * (See FLAC__metadata_chain_write() for the details on how padding is
- * used to write metadata in place if possible.)
- *
- * This version of the write-with-callbacks function must be used when
- * FLAC__metadata_chain_check_if_tempfile_needed() returns true. In
- * this function, you must supply an I/O handle corresponding to the
- * FLAC file to edit, and a temporary handle to which the new FLAC
- * file will be written. It is the caller's job to move this temporary
- * FLAC file on top of the original FLAC file to complete the metadata
- * edit.
- *
- * The \a handle must be open for reading and be seekable. The
- * equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
- * for Windows).
- *
- * The \a temp_handle must be open for writing. The
- * equivalent minimum stdio fopen() file mode is \c "w" (or \c "wb"
- * for Windows). It should be an empty stream, or at least positioned
- * at the start-of-file (in which case it is the caller's duty to
- * truncate it on return).
- *
- * For this write function to be used, the chain must have been read with
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
- * not FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
- * Also, FLAC__metadata_chain_check_if_tempfile_needed() must have returned
- * \c true.
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding See FLAC__metadata_chain_write()
- * \param handle The I/O handle of the original FLAC stream to read.
- * The handle will NOT be closed after the metadata is
- * written; that is the duty of the caller.
- * \param callbacks A set of callbacks to use for I/O on \a handle.
- * The mandatory callbacks are \a read, \a seek, and
- * \a eof.
- * \param temp_handle The I/O handle of the FLAC stream to write. The
- * handle will NOT be closed after the metadata is
- * written; that is the duty of the caller.
- * \param temp_callbacks
- * A set of callbacks to use for I/O on temp_handle.
- * The only mandatory callback is \a write.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if the write succeeded, else \c false. On failure,
- * check the status with FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks);
-
-/** Merge adjacent PADDING blocks into a single block.
- *
- * \note This function does not write to the FLAC file, it only
- * modifies the chain.
- *
- * \warning Any iterator on the current chain will become invalid after this
- * call. You should delete the iterator and get a new one.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain);
-
-/** This function will move all PADDING blocks to the end on the metadata,
- * then merge them into a single block.
- *
- * \note This function does not write to the FLAC file, it only
- * modifies the chain.
- *
- * \warning Any iterator on the current chain will become invalid after this
- * call. You should delete the iterator and get a new one.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain);
-
-
-/*********** FLAC__Metadata_Iterator ***********/
-
-/** Create a new iterator instance.
- *
- * \retval FLAC__Metadata_Iterator*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void);
-
-/** Free an iterator instance. Deletes the object pointed to by \a iterator.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- */
-FLAC_API void FLAC__metadata_iterator_delete(FLAC__Metadata_Iterator *iterator);
-
-/** Initialize the iterator to point to the first metadata block in the
- * given chain.
- *
- * \param iterator A pointer to an existing iterator.
- * \param chain A pointer to an existing and initialized (read) chain.
- * \assert
- * \code iterator != NULL \endcode
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_iterator_init(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Chain *chain);
-
-/** Moves the iterator forward one metadata block, returning \c false if
- * already at the end.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the last metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_next(FLAC__Metadata_Iterator *iterator);
-
-/** Moves the iterator backward one metadata block, returning \c false if
- * already at the beginning.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the first metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_prev(FLAC__Metadata_Iterator *iterator);
-
-/** Get the type of the metadata block at the current position.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__MetadataType
- * The type of the metadata block at the current iterator position.
- */
-FLAC_API FLAC__MetadataType FLAC__metadata_iterator_get_block_type(const FLAC__Metadata_Iterator *iterator);
-
-/** Get the metadata block at the current position. You can modify
- * the block in place but must write the chain before the changes
- * are reflected to the FLAC file. You do not need to call
- * FLAC__metadata_iterator_set_block() to reflect the changes;
- * the pointer returned by FLAC__metadata_iterator_get_block()
- * points directly into the chain.
- *
- * \warning
- * Do not call FLAC__metadata_object_delete() on the returned object;
- * to delete a block use FLAC__metadata_iterator_delete_block().
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__StreamMetadata*
- * The current metadata block.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_iterator_get_block(FLAC__Metadata_Iterator *iterator);
-
-/** Set the metadata block at the current position, replacing the existing
- * block. The new block passed in becomes owned by the chain and it will be
- * deleted when the chain is deleted.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block A pointer to a metadata block.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \code block != NULL \endcode
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met, or
- * a memory allocation error occurs, otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_set_block(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
-
-/** Removes the current block from the chain. If \a replace_with_padding is
- * \c true, the block will instead be replaced with a padding block of equal
- * size. You can not delete the STREAMINFO block. The iterator will be
- * left pointing to the block before the one just "deleted", even if
- * \a replace_with_padding is \c true.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param replace_with_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met,
- * otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_delete_block(FLAC__Metadata_Iterator *iterator, FLAC__bool replace_with_padding);
-
-/** Insert a new block before the current block. You cannot insert a block
- * before the first STREAMINFO block. You cannot insert a STREAMINFO block
- * as there can be only one, the one that already exists at the head when you
- * read in a chain. The chain takes ownership of the new block and it will be
- * deleted when the chain is deleted. The iterator will be left pointing to
- * the new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block A pointer to a metadata block to insert.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met, or
- * a memory allocation error occurs, otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_before(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
-
-/** Insert a new block after the current block. You cannot insert a STREAMINFO
- * block as there can be only one, the one that already exists at the head when
- * you read in a chain. The chain takes ownership of the new block and it will
- * be deleted when the chain is deleted. The iterator will be left pointing to
- * the new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block A pointer to a metadata block to insert.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met, or
- * a memory allocation error occurs, otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
-
-/* \} */
-
-
-/** \defgroup flac_metadata_object FLAC/metadata.h: metadata object methods
- * \ingroup flac_metadata
- *
- * \brief
- * This module contains methods for manipulating FLAC metadata objects.
- *
- * Since many are variable length we have to be careful about the memory
- * management. We decree that all pointers to data in the object are
- * owned by the object and memory-managed by the object.
- *
- * Use the FLAC__metadata_object_new() and FLAC__metadata_object_delete()
- * functions to create all instances. When using the
- * FLAC__metadata_object_set_*() functions to set pointers to data, set
- * \a copy to \c true to have the function make it's own copy of the data, or
- * to \c false to give the object ownership of your data. In the latter case
- * your pointer must be freeable by free() and will be free()d when the object
- * is FLAC__metadata_object_delete()d. It is legal to pass a null pointer as
- * the data pointer to a FLAC__metadata_object_set_*() function as long as
- * the length argument is 0 and the \a copy argument is \c false.
- *
- * The FLAC__metadata_object_new() and FLAC__metadata_object_clone() function
- * will return \c NULL in the case of a memory allocation error, otherwise a new
- * object. The FLAC__metadata_object_set_*() functions return \c false in the
- * case of a memory allocation error.
- *
- * We don't have the convenience of C++ here, so note that the library relies
- * on you to keep the types straight. In other words, if you pass, for
- * example, a FLAC__StreamMetadata* that represents a STREAMINFO block to
- * FLAC__metadata_object_application_set_data(), you will get an assertion
- * failure.
- *
- * For convenience the FLAC__metadata_object_vorbiscomment_*() functions
- * maintain a trailing NUL on each Vorbis comment entry. This is not counted
- * toward the length or stored in the stream, but it can make working with plain
- * comments (those that don't contain embedded-NULs in the value) easier.
- * Entries passed into these functions have trailing NULs added if missing, and
- * returned entries are guaranteed to have a trailing NUL.
- *
- * The FLAC__metadata_object_vorbiscomment_*() functions that take a Vorbis
- * comment entry/name/value will first validate that it complies with the Vorbis
- * comment specification and return false if it does not.
- *
- * There is no need to recalculate the length field on metadata blocks you
- * have modified. They will be calculated automatically before they are
- * written back to a file.
- *
- * \{
- */
-
-
-/** Create a new metadata object instance of the given type.
- *
- * The object will be "empty"; i.e. values and data pointers will be \c 0,
- * with the exception of FLAC__METADATA_TYPE_VORBIS_COMMENT, which will have
- * the vendor string set (but zero comments).
- *
- * Do not pass in a value greater than or equal to
- * \a FLAC__METADATA_TYPE_UNDEFINED unless you really know what you're
- * doing.
- *
- * \param type Type of object to create
- * \retval FLAC__StreamMetadata*
- * \c NULL if there was an error allocating memory or the type code is
- * greater than FLAC__MAX_METADATA_TYPE_CODE, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type);
-
-/** Create a copy of an existing metadata object.
- *
- * The copy is a "deep" copy, i.e. dynamically allocated data within the
- * object is also copied. The caller takes ownership of the new block and
- * is responsible for freeing it with FLAC__metadata_object_delete().
- *
- * \param object Pointer to object to copy.
- * \assert
- * \code object != NULL \endcode
- * \retval FLAC__StreamMetadata*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object);
-
-/** Free a metadata object. Deletes the object pointed to by \a object.
- *
- * The delete is a "deep" delete, i.e. dynamically allocated data within the
- * object is also deleted.
- *
- * \param object A pointer to an existing object.
- * \assert
- * \code object != NULL \endcode
- */
-FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object);
-
-/** Compares two metadata objects.
- *
- * The compare is "deep", i.e. dynamically allocated data within the
- * object is also compared.
- *
- * \param block1 A pointer to an existing object.
- * \param block2 A pointer to an existing object.
- * \assert
- * \code block1 != NULL \endcode
- * \code block2 != NULL \endcode
- * \retval FLAC__bool
- * \c true if objects are identical, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2);
-
-/** Sets the application data of an APPLICATION block.
- *
- * If \a copy is \c true, a copy of the data is stored; otherwise, the object
- * takes ownership of the pointer. The existing data will be freed if this
- * function is successful, otherwise the original data will remain if \a copy
- * is \c true and malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a data if \a copy is \c true.
- *
- * \param object A pointer to an existing APPLICATION object.
- * \param data A pointer to the data to set.
- * \param length The length of \a data in bytes.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_APPLICATION \endcode
- * \code (data != NULL && length > 0) ||
- * (data == NULL && length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, unsigned length, FLAC__bool copy);
-
-/** Resize the seekpoint array.
- *
- * If the size shrinks, elements will truncated; if it grows, new placeholder
- * points will be added to the end.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param new_num_points The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code (object->data.seek_table.points == NULL && object->data.seek_table.num_points == 0) ||
- * (object->data.seek_table.points != NULL && object->data.seek_table.num_points > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, unsigned new_num_points);
-
-/** Set a seekpoint in a seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param point_num Index into seekpoint array to set.
- * \param point The point to set.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code object->data.seek_table.num_points > point_num \endcode
- */
-FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point);
-
-/** Insert a seekpoint into a seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param point_num Index into seekpoint array to set.
- * \param point The point to set.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code object->data.seek_table.num_points >= point_num \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point);
-
-/** Delete a seekpoint from a seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param point_num Index into seekpoint array to set.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code object->data.seek_table.num_points > point_num \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, unsigned point_num);
-
-/** Check a seektable to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if seek table is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object);
-
-/** Append a number of placeholder points to the end of a seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param num The number of placeholder points to append.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, unsigned num);
-
-/** Append a specific seek point template to the end of a seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param sample_number The sample number of the seek point template.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number);
-
-/** Append specific seek point templates to the end of a seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param sample_numbers An array of sample numbers for the seek points.
- * \param num The number of seek point templates to append.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], unsigned num);
-
-/** Append a set of evenly-spaced seek point templates to the end of a
- * seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param num The number of placeholder points to append.
- * \param total_samples The total number of samples to be encoded;
- * the seekpoints will be spaced approximately
- * \a total_samples / \a num samples apart.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code total_samples > 0 \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, unsigned num, FLAC__uint64 total_samples);
-
-/** Append a set of evenly-spaced seek point templates to the end of a
- * seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param samples The number of samples apart to space the placeholder
- * points. The first point will be at sample \c 0, the
- * second at sample \a samples, then 2*\a samples, and
- * so on. As long as \a samples and \a total_samples
- * are greater than \c 0, there will always be at least
- * one seekpoint at sample \c 0.
- * \param total_samples The total number of samples to be encoded;
- * the seekpoints will be spaced
- * \a samples samples apart.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code samples > 0 \endcode
- * \code total_samples > 0 \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, unsigned samples, FLAC__uint64 total_samples);
-
-/** Sort a seek table's seek points according to the format specification,
- * removing duplicates.
- *
- * \param object A pointer to a seek table to be sorted.
- * \param compact If \c false, behaves like FLAC__format_seektable_sort().
- * If \c true, duplicates are deleted and the seek table is
- * shrunk appropriately; the number of placeholder points
- * present in the seek table will be the same after the call
- * as before.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact);
-
-/** Sets the vendor string in a VORBIS_COMMENT block.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param entry The entry to set the vendor string to.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Resize the comment array.
- *
- * If the size shrinks, elements will truncated; if it grows, new empty
- * fields will be added to the end.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param new_num_comments The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (object->data.vorbis_comment.comments == NULL && object->data.vorbis_comment.num_comments == 0) ||
- * (object->data.vorbis_comment.comments != NULL && object->data.vorbis_comment.num_comments > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, unsigned new_num_comments);
-
-/** Sets a comment in a VORBIS_COMMENT block.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param comment_num Index into comment array to set.
- * \param entry The entry to set the comment to.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code comment_num < object->data.vorbis_comment.num_comments \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Insert a comment in a VORBIS_COMMENT block at the given index.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param comment_num The index at which to insert the comment. The comments
- * at and after \a comment_num move right one position.
- * To append a comment to the end, set \a comment_num to
- * \c object->data.vorbis_comment.num_comments .
- * \param entry The comment to insert.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code object->data.vorbis_comment.num_comments >= comment_num \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Appends a comment to a VORBIS_COMMENT block.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param entry The comment to insert.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Replaces comments in a VORBIS_COMMENT block with a new one.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * Depending on the value of \a all, either all or just the first comment
- * whose field name(s) match the given entry's name will be replaced by the
- * given entry. If no comments match, \a entry will simply be appended.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param entry The comment to insert.
- * \param all If \c true, all comments whose field name matches
- * \a entry's field name will be removed, and \a entry will
- * be inserted at the position of the first matching
- * comment. If \c false, only the first comment whose
- * field name matches \a entry's field name will be
- * replaced with \a entry.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy);
-
-/** Delete a comment in a VORBIS_COMMENT block at the given index.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param comment_num The index of the comment to delete.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code object->data.vorbis_comment.num_comments > comment_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, unsigned comment_num);
-
-/** Creates a Vorbis comment entry from NUL-terminated name and value strings.
- *
- * On return, the filled-in \a entry->entry pointer will point to malloc()ed
- * memory and shall be owned by the caller. For convenience the entry will
- * have a terminating NUL.
- *
- * \param entry A pointer to a Vorbis comment entry. The entry's
- * \c entry pointer should not point to allocated
- * memory as it will be overwritten.
- * \param field_name The field name in ASCII, \c NUL terminated.
- * \param field_value The field value in UTF-8, \c NUL terminated.
- * \assert
- * \code entry != NULL \endcode
- * \code field_name != NULL \endcode
- * \code field_value != NULL \endcode
- * \retval FLAC__bool
- * \c false if malloc() fails, or if \a field_name or \a field_value does
- * not comply with the Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value);
-
-/** Splits a Vorbis comment entry into NUL-terminated name and value strings.
- *
- * The returned pointers to name and value will be allocated by malloc()
- * and shall be owned by the caller.
- *
- * \param entry An existing Vorbis comment entry.
- * \param field_name The address of where the returned pointer to the
- * field name will be stored.
- * \param field_value The address of where the returned pointer to the
- * field value will be stored.
- * \assert
- * \code (entry.entry != NULL && entry.length > 0) \endcode
- * \code memchr(entry.entry, '=', entry.length) != NULL \endcode
- * \code field_name != NULL \endcode
- * \code field_value != NULL \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value);
-
-/** Check if the given Vorbis comment entry's field name matches the given
- * field name.
- *
- * \param entry An existing Vorbis comment entry.
- * \param field_name The field name to check.
- * \param field_name_length The length of \a field_name, not including the
- * terminating \c NUL.
- * \assert
- * \code (entry.entry != NULL && entry.length > 0) \endcode
- * \retval FLAC__bool
- * \c true if the field names match, else \c false
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, unsigned field_name_length);
-
-/** Find a Vorbis comment with the given field name.
- *
- * The search begins at entry number \a offset; use an offset of 0 to
- * search from the beginning of the comment array.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param offset The offset into the comment array from where to start
- * the search.
- * \param field_name The field name of the comment to find.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code field_name != NULL \endcode
- * \retval int
- * The offset in the comment array of the first comment whose field
- * name matches \a field_name, or \c -1 if no match was found.
- */
-FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name);
-
-/** Remove first Vorbis comment matching the given field name.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param field_name The field name of comment to delete.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \retval int
- * \c -1 for memory allocation error, \c 0 for no matching entries,
- * \c 1 for one matching entry deleted.
- */
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name);
-
-/** Remove all Vorbis comments matching the given field name.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param field_name The field name of comments to delete.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \retval int
- * \c -1 for memory allocation error, \c 0 for no matching entries,
- * else the number of matching entries deleted.
- */
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name);
-
-/** Create a new CUESHEET track instance.
- *
- * The object will be "empty"; i.e. values and data pointers will be \c 0.
- *
- * \retval FLAC__StreamMetadata_CueSheet_Track*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void);
-
-/** Create a copy of an existing CUESHEET track object.
- *
- * The copy is a "deep" copy, i.e. dynamically allocated data within the
- * object is also copied. The caller takes ownership of the new object and
- * is responsible for freeing it with
- * FLAC__metadata_object_cuesheet_track_delete().
- *
- * \param object Pointer to object to copy.
- * \assert
- * \code object != NULL \endcode
- * \retval FLAC__StreamMetadata_CueSheet_Track*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object);
-
-/** Delete a CUESHEET track object
- *
- * \param object A pointer to an existing CUESHEET track object.
- * \assert
- * \code object != NULL \endcode
- */
-FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object);
-
-/** Resize a track's index point array.
- *
- * If the size shrinks, elements will truncated; if it grows, new blank
- * indices will be added to the end.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index of the track to modify. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param new_num_indices The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code (object->data.cue_sheet.tracks[track_num].indices == NULL && object->data.cue_sheet.tracks[track_num].num_indices == 0) ||
- * (object->data.cue_sheet.tracks[track_num].indices != NULL && object->data.cue_sheet.tracks[track_num].num_indices > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices);
-
-/** Insert an index point in a CUESHEET track at the given index.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index of the track to modify. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param index_num The index into the track's index array at which to
- * insert the index point. NOTE: this is not necessarily
- * the same as the index point's \a number field. The
- * indices at and after \a index_num move right one
- * position. To append an index point to the end, set
- * \a index_num to
- * \c object->data.cue_sheet.tracks[track_num].num_indices .
- * \param index The index point to insert.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code object->data.cue_sheet.tracks[track_num].num_indices >= index_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num, FLAC__StreamMetadata_CueSheet_Index index);
-
-/** Insert a blank index point in a CUESHEET track at the given index.
- *
- * A blank index point is one in which all field values are zero.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index of the track to modify. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param index_num The index into the track's index array at which to
- * insert the index point. NOTE: this is not necessarily
- * the same as the index point's \a number field. The
- * indices at and after \a index_num move right one
- * position. To append an index point to the end, set
- * \a index_num to
- * \c object->data.cue_sheet.tracks[track_num].num_indices .
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code object->data.cue_sheet.tracks[track_num].num_indices >= index_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num);
-
-/** Delete an index point in a CUESHEET track at the given index.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index into the track array of the track to
- * modify. NOTE: this is not necessarily the same
- * as the track's \a number field.
- * \param index_num The index into the track's index array of the index
- * to delete. NOTE: this is not necessarily the same
- * as the index's \a number field.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code object->data.cue_sheet.tracks[track_num].num_indices > index_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num);
-
-/** Resize the track array.
- *
- * If the size shrinks, elements will truncated; if it grows, new blank
- * tracks will be added to the end.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param new_num_tracks The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code (object->data.cue_sheet.tracks == NULL && object->data.cue_sheet.num_tracks == 0) ||
- * (object->data.cue_sheet.tracks != NULL && object->data.cue_sheet.num_tracks > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks);
-
-/** Sets a track in a CUESHEET block.
- *
- * If \a copy is \c true, a copy of the track is stored; otherwise, the object
- * takes ownership of the \a track pointer.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num Index into track array to set. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param track The track to set the track to. You may safely pass in
- * a const pointer if \a copy is \c true.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code track_num < object->data.cue_sheet.num_tracks \endcode
- * \code (track->indices != NULL && track->num_indices > 0) ||
- * (track->indices == NULL && track->num_indices == 0)
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy);
-
-/** Insert a track in a CUESHEET block at the given index.
- *
- * If \a copy is \c true, a copy of the track is stored; otherwise, the object
- * takes ownership of the \a track pointer.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index at which to insert the track. NOTE: this
- * is not necessarily the same as the track's \a number
- * field. The tracks at and after \a track_num move right
- * one position. To append a track to the end, set
- * \a track_num to \c object->data.cue_sheet.num_tracks .
- * \param track The track to insert. You may safely pass in a const
- * pointer if \a copy is \c true.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks >= track_num \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy);
-
-/** Insert a blank track in a CUESHEET block at the given index.
- *
- * A blank track is one in which all field values are zero.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index at which to insert the track. NOTE: this
- * is not necessarily the same as the track's \a number
- * field. The tracks at and after \a track_num move right
- * one position. To append a track to the end, set
- * \a track_num to \c object->data.cue_sheet.num_tracks .
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks >= track_num \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num);
-
-/** Delete a track in a CUESHEET block at the given index.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index into the track array of the track to
- * delete. NOTE: this is not necessarily the same
- * as the track's \a number field.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num);
-
-/** Check a cue sheet to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * cue sheet.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param check_cd_da_subset If \c true, check CUESHEET against more
- * stringent requirements for a CD-DA (audio) disc.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \retval FLAC__bool
- * \c false if cue sheet is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation);
-
-/** Calculate and return the CDDB/freedb ID for a cue sheet. The function
- * assumes the cue sheet corresponds to a CD; the result is undefined
- * if the cuesheet's is_cd bit is not set.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \retval FLAC__uint32
- * The unsigned integer representation of the CDDB/freedb ID
- */
-FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object);
-
-/** Sets the MIME type of a PICTURE block.
- *
- * If \a copy is \c true, a copy of the string is stored; otherwise, the object
- * takes ownership of the pointer. The existing string will be freed if this
- * function is successful, otherwise the original string will remain if \a copy
- * is \c true and malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a mime_type if \a copy is \c true.
- *
- * \param object A pointer to an existing PICTURE object.
- * \param mime_type A pointer to the MIME type string. The string must be
- * ASCII characters 0x20-0x7e, NUL-terminated. No validation
- * is done.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \code (mime_type != NULL) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy);
-
-/** Sets the description of a PICTURE block.
- *
- * If \a copy is \c true, a copy of the string is stored; otherwise, the object
- * takes ownership of the pointer. The existing string will be freed if this
- * function is successful, otherwise the original string will remain if \a copy
- * is \c true and malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a description if \a copy is \c true.
- *
- * \param object A pointer to an existing PICTURE object.
- * \param description A pointer to the description string. The string must be
- * valid UTF-8, NUL-terminated. No validation is done.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \code (description != NULL) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy);
-
-/** Sets the picture data of a PICTURE block.
- *
- * If \a copy is \c true, a copy of the data is stored; otherwise, the object
- * takes ownership of the pointer. Also sets the \a data_length field of the
- * metadata object to what is passed in as the \a length parameter. The
- * existing data will be freed if this function is successful, otherwise the
- * original data and data_length will remain if \a copy is \c true and
- * malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a data if \a copy is \c true.
- *
- * \param object A pointer to an existing PICTURE object.
- * \param data A pointer to the data to set.
- * \param length The length of \a data in bytes.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \code (data != NULL && length > 0) ||
- * (data == NULL && length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy);
-
-/** Check a PICTURE block to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * PICTURE block.
- *
- * \param object A pointer to existing PICTURE block to be checked.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \retval FLAC__bool
- * \c false if PICTURE block is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/ordinals.h b/src/lib/libflac/include/FLAC/ordinals.h
deleted file mode 100644
index a7a5cd96135..00000000000
--- a/src/lib/libflac/include/FLAC/ordinals.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__ORDINALS_H
-#define FLAC__ORDINALS_H
-
-#if !(defined(_MSC_VER) || defined(__BORLANDC__) || defined(__EMX__))
-#include <inttypes.h>
-#endif
-
-typedef signed char FLAC__int8;
-typedef unsigned char FLAC__uint8;
-
-#if defined(_MSC_VER) || defined(__BORLANDC__)
-typedef __int16 FLAC__int16;
-typedef __int32 FLAC__int32;
-typedef __int64 FLAC__int64;
-typedef unsigned __int16 FLAC__uint16;
-typedef unsigned __int32 FLAC__uint32;
-typedef unsigned __int64 FLAC__uint64;
-#elif defined(__EMX__)
-typedef short FLAC__int16;
-typedef long FLAC__int32;
-typedef long long FLAC__int64;
-typedef unsigned short FLAC__uint16;
-typedef unsigned long FLAC__uint32;
-typedef unsigned long long FLAC__uint64;
-#else
-typedef int16_t FLAC__int16;
-typedef int32_t FLAC__int32;
-typedef int64_t FLAC__int64;
-typedef uint16_t FLAC__uint16;
-typedef uint32_t FLAC__uint32;
-typedef uint64_t FLAC__uint64;
-#endif
-
-typedef int FLAC__bool;
-
-typedef FLAC__uint8 FLAC__byte;
-
-#ifdef true
-#undef true
-#endif
-#ifdef false
-#undef false
-#endif
-#ifndef __cplusplus
-#define true 1
-#define false 0
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/stream_decoder.h b/src/lib/libflac/include/FLAC/stream_decoder.h
deleted file mode 100644
index 1d44a36f204..00000000000
--- a/src/lib/libflac/include/FLAC/stream_decoder.h
+++ /dev/null
@@ -1,1551 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__STREAM_DECODER_H
-#define FLAC__STREAM_DECODER_H
-
-#include <stdio.h> /* for FILE */
-#include "export.h"
-#include "format.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** \file include/FLAC/stream_decoder.h
- *
- * \brief
- * This module contains the functions which implement the stream
- * decoder.
- *
- * See the detailed documentation in the
- * \link flac_stream_decoder stream decoder \endlink module.
- */
-
-/** \defgroup flac_decoder FLAC/ \*_decoder.h: decoder interfaces
- * \ingroup flac
- *
- * \brief
- * This module describes the decoder layers provided by libFLAC.
- *
- * The stream decoder can be used to decode complete streams either from
- * the client via callbacks, or directly from a file, depending on how
- * it is initialized. When decoding via callbacks, the client provides
- * callbacks for reading FLAC data and writing decoded samples, and
- * handling metadata and errors. If the client also supplies seek-related
- * callback, the decoder function for sample-accurate seeking within the
- * FLAC input is also available. When decoding from a file, the client
- * needs only supply a filename or open \c FILE* and write/metadata/error
- * callbacks; the rest of the callbacks are supplied internally. For more
- * info see the \link flac_stream_decoder stream decoder \endlink module.
- */
-
-/** \defgroup flac_stream_decoder FLAC/stream_decoder.h: stream decoder interface
- * \ingroup flac_decoder
- *
- * \brief
- * This module contains the functions which implement the stream
- * decoder.
- *
- * The stream decoder can decode native FLAC, and optionally Ogg FLAC
- * (check FLAC_API_SUPPORTS_OGG_FLAC) streams and files.
- *
- * The basic usage of this decoder is as follows:
- * - The program creates an instance of a decoder using
- * FLAC__stream_decoder_new().
- * - The program overrides the default settings using
- * FLAC__stream_decoder_set_*() functions.
- * - The program initializes the instance to validate the settings and
- * prepare for decoding using
- * - FLAC__stream_decoder_init_stream() or FLAC__stream_decoder_init_FILE()
- * or FLAC__stream_decoder_init_file() for native FLAC,
- * - FLAC__stream_decoder_init_ogg_stream() or FLAC__stream_decoder_init_ogg_FILE()
- * or FLAC__stream_decoder_init_ogg_file() for Ogg FLAC
- * - The program calls the FLAC__stream_decoder_process_*() functions
- * to decode data, which subsequently calls the callbacks.
- * - The program finishes the decoding with FLAC__stream_decoder_finish(),
- * which flushes the input and output and resets the decoder to the
- * uninitialized state.
- * - The instance may be used again or deleted with
- * FLAC__stream_decoder_delete().
- *
- * In more detail, the program will create a new instance by calling
- * FLAC__stream_decoder_new(), then call FLAC__stream_decoder_set_*()
- * functions to override the default decoder options, and call
- * one of the FLAC__stream_decoder_init_*() functions.
- *
- * There are three initialization functions for native FLAC, one for
- * setting up the decoder to decode FLAC data from the client via
- * callbacks, and two for decoding directly from a FLAC file.
- *
- * For decoding via callbacks, use FLAC__stream_decoder_init_stream().
- * You must also supply several callbacks for handling I/O. Some (like
- * seeking) are optional, depending on the capabilities of the input.
- *
- * For decoding directly from a file, use FLAC__stream_decoder_init_FILE()
- * or FLAC__stream_decoder_init_file(). Then you must only supply an open
- * \c FILE* or filename and fewer callbacks; the decoder will handle
- * the other callbacks internally.
- *
- * There are three similarly-named init functions for decoding from Ogg
- * FLAC streams. Check \c FLAC_API_SUPPORTS_OGG_FLAC to find out if the
- * library has been built with Ogg support.
- *
- * Once the decoder is initialized, your program will call one of several
- * functions to start the decoding process:
- *
- * - FLAC__stream_decoder_process_single() - Tells the decoder to process at
- * most one metadata block or audio frame and return, calling either the
- * metadata callback or write callback, respectively, once. If the decoder
- * loses sync it will return with only the error callback being called.
- * - FLAC__stream_decoder_process_until_end_of_metadata() - Tells the decoder
- * to process the stream from the current location and stop upon reaching
- * the first audio frame. The client will get one metadata, write, or error
- * callback per metadata block, audio frame, or sync error, respectively.
- * - FLAC__stream_decoder_process_until_end_of_stream() - Tells the decoder
- * to process the stream from the current location until the read callback
- * returns FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM or
- * FLAC__STREAM_DECODER_READ_STATUS_ABORT. The client will get one metadata,
- * write, or error callback per metadata block, audio frame, or sync error,
- * respectively.
- *
- * When the decoder has finished decoding (normally or through an abort),
- * the instance is finished by calling FLAC__stream_decoder_finish(), which
- * ensures the decoder is in the correct state and frees memory. Then the
- * instance may be deleted with FLAC__stream_decoder_delete() or initialized
- * again to decode another stream.
- *
- * Seeking is exposed through the FLAC__stream_decoder_seek_absolute() method.
- * At any point after the stream decoder has been initialized, the client can
- * call this function to seek to an exact sample within the stream.
- * Subsequently, the first time the write callback is called it will be
- * passed a (possibly partial) block starting at that sample.
- *
- * If the client cannot seek via the callback interface provided, but still
- * has another way of seeking, it can flush the decoder using
- * FLAC__stream_decoder_flush() and start feeding data from the new position
- * through the read callback.
- *
- * The stream decoder also provides MD5 signature checking. If this is
- * turned on before initialization, FLAC__stream_decoder_finish() will
- * report when the decoded MD5 signature does not match the one stored
- * in the STREAMINFO block. MD5 checking is automatically turned off
- * (until the next FLAC__stream_decoder_reset()) if there is no signature
- * in the STREAMINFO block or when a seek is attempted.
- *
- * The FLAC__stream_decoder_set_metadata_*() functions deserve special
- * attention. By default, the decoder only calls the metadata_callback for
- * the STREAMINFO block. These functions allow you to tell the decoder
- * explicitly which blocks to parse and return via the metadata_callback
- * and/or which to skip. Use a FLAC__stream_decoder_set_metadata_respond_all(),
- * FLAC__stream_decoder_set_metadata_ignore() ... or FLAC__stream_decoder_set_metadata_ignore_all(),
- * FLAC__stream_decoder_set_metadata_respond() ... sequence to exactly specify
- * which blocks to return. Remember that metadata blocks can potentially
- * be big (for example, cover art) so filtering out the ones you don't
- * use can reduce the memory requirements of the decoder. Also note the
- * special forms FLAC__stream_decoder_set_metadata_respond_application(id)
- * and FLAC__stream_decoder_set_metadata_ignore_application(id) for
- * filtering APPLICATION blocks based on the application ID.
- *
- * STREAMINFO and SEEKTABLE blocks are always parsed and used internally, but
- * they still can legally be filtered from the metadata_callback.
- *
- * \note
- * The "set" functions may only be called when the decoder is in the
- * state FLAC__STREAM_DECODER_UNINITIALIZED, i.e. after
- * FLAC__stream_decoder_new() or FLAC__stream_decoder_finish(), but
- * before FLAC__stream_decoder_init_*(). If this is the case they will
- * return \c true, otherwise \c false.
- *
- * \note
- * FLAC__stream_decoder_finish() resets all settings to the constructor
- * defaults, including the callbacks.
- *
- * \{
- */
-
-
-/** State values for a FLAC__StreamDecoder
- *
- * The decoder's state can be obtained by calling FLAC__stream_decoder_get_state().
- */
-typedef enum {
- FLAC__STREAM_DECODER_SEARCH_FOR_METADATA = 0,
- /**< The decoder is ready to search for metadata. */
-
- FLAC__STREAM_DECODER_READ_METADATA,
- /**< The decoder is ready to or is in the process of reading metadata. */
-
- FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC,
- /**< The decoder is ready to or is in the process of searching for the
- * frame sync code.
- */
-
- FLAC__STREAM_DECODER_READ_FRAME,
- /**< The decoder is ready to or is in the process of reading a frame. */
-
- FLAC__STREAM_DECODER_END_OF_STREAM,
- /**< The decoder has reached the end of the stream. */
-
- FLAC__STREAM_DECODER_OGG_ERROR,
- /**< An error occurred in the underlying Ogg layer. */
-
- FLAC__STREAM_DECODER_SEEK_ERROR,
- /**< An error occurred while seeking. The decoder must be flushed
- * with FLAC__stream_decoder_flush() or reset with
- * FLAC__stream_decoder_reset() before decoding can continue.
- */
-
- FLAC__STREAM_DECODER_ABORTED,
- /**< The decoder was aborted by the read callback. */
-
- FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR,
- /**< An error occurred allocating memory. The decoder is in an invalid
- * state and can no longer be used.
- */
-
- FLAC__STREAM_DECODER_UNINITIALIZED
- /**< The decoder is in the uninitialized state; one of the
- * FLAC__stream_decoder_init_*() functions must be called before samples
- * can be processed.
- */
-
-} FLAC__StreamDecoderState;
-
-/** Maps a FLAC__StreamDecoderState to a C string.
- *
- * Using a FLAC__StreamDecoderState as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderStateString[];
-
-
-/** Possible return values for the FLAC__stream_decoder_init_*() functions.
- */
-typedef enum {
- FLAC__STREAM_DECODER_INIT_STATUS_OK = 0,
- /**< Initialization was successful. */
-
- FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER,
- /**< The library was not compiled with support for the given container
- * format.
- */
-
- FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS,
- /**< A required callback was not supplied. */
-
- FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR,
- /**< An error occurred allocating memory. */
-
- FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE,
- /**< fopen() failed in FLAC__stream_decoder_init_file() or
- * FLAC__stream_decoder_init_ogg_file(). */
-
- FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED
- /**< FLAC__stream_decoder_init_*() was called when the decoder was
- * already initialized, usually because
- * FLAC__stream_decoder_finish() was not called.
- */
-
-} FLAC__StreamDecoderInitStatus;
-
-/** Maps a FLAC__StreamDecoderInitStatus to a C string.
- *
- * Using a FLAC__StreamDecoderInitStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderInitStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder read callback.
- */
-typedef enum {
- FLAC__STREAM_DECODER_READ_STATUS_CONTINUE,
- /**< The read was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM,
- /**< The read was attempted while at the end of the stream. Note that
- * the client must only return this value when the read callback was
- * called when already at the end of the stream. Otherwise, if the read
- * itself moves to the end of the stream, the client should still return
- * the data and \c FLAC__STREAM_DECODER_READ_STATUS_CONTINUE, and then on
- * the next read callback it should return
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM with a byte count
- * of \c 0.
- */
-
- FLAC__STREAM_DECODER_READ_STATUS_ABORT
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
-} FLAC__StreamDecoderReadStatus;
-
-/** Maps a FLAC__StreamDecoderReadStatus to a C string.
- *
- * Using a FLAC__StreamDecoderReadStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderReadStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder seek callback.
- */
-typedef enum {
- FLAC__STREAM_DECODER_SEEK_STATUS_OK,
- /**< The seek was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_SEEK_STATUS_ERROR,
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
- FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
- /**< Client does not support seeking. */
-
-} FLAC__StreamDecoderSeekStatus;
-
-/** Maps a FLAC__StreamDecoderSeekStatus to a C string.
- *
- * Using a FLAC__StreamDecoderSeekStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderSeekStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder tell callback.
- */
-typedef enum {
- FLAC__STREAM_DECODER_TELL_STATUS_OK,
- /**< The tell was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_TELL_STATUS_ERROR,
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
- FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
- /**< Client does not support telling the position. */
-
-} FLAC__StreamDecoderTellStatus;
-
-/** Maps a FLAC__StreamDecoderTellStatus to a C string.
- *
- * Using a FLAC__StreamDecoderTellStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderTellStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder length callback.
- */
-typedef enum {
- FLAC__STREAM_DECODER_LENGTH_STATUS_OK,
- /**< The length call was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR,
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
- FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
- /**< Client does not support reporting the length. */
-
-} FLAC__StreamDecoderLengthStatus;
-
-/** Maps a FLAC__StreamDecoderLengthStatus to a C string.
- *
- * Using a FLAC__StreamDecoderLengthStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderLengthStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder write callback.
- */
-typedef enum {
- FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE,
- /**< The write was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_WRITE_STATUS_ABORT
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
-} FLAC__StreamDecoderWriteStatus;
-
-/** Maps a FLAC__StreamDecoderWriteStatus to a C string.
- *
- * Using a FLAC__StreamDecoderWriteStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[];
-
-
-/** Possible values passed back to the FLAC__StreamDecoder error callback.
- * \c FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC is the generic catch-
- * all. The rest could be caused by bad sync (false synchronization on
- * data that is not the start of a frame) or corrupted data. The error
- * itself is the decoder's best guess at what happened assuming a correct
- * sync. For example \c FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER
- * could be caused by a correct sync on the start of a frame, but some
- * data in the frame header was corrupted. Or it could be the result of
- * syncing on a point the stream that looked like the starting of a frame
- * but was not. \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM
- * could be because the decoder encountered a valid frame made by a future
- * version of the encoder which it cannot parse, or because of a false
- * sync making it appear as though an encountered frame was generated by
- * a future encoder.
- */
-typedef enum {
- FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC,
- /**< An error in the stream caused the decoder to lose synchronization. */
-
- FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER,
- /**< The decoder encountered a corrupted frame header. */
-
- FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH,
- /**< The frame's data did not match the CRC in the footer. */
-
- FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM
- /**< The decoder encountered reserved fields in use in the stream. */
-
-} FLAC__StreamDecoderErrorStatus;
-
-/** Maps a FLAC__StreamDecoderErrorStatus to a C string.
- *
- * Using a FLAC__StreamDecoderErrorStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[];
-
-
-/***********************************************************************
- *
- * class FLAC__StreamDecoder
- *
- ***********************************************************************/
-
-struct FLAC__StreamDecoderProtected;
-struct FLAC__StreamDecoderPrivate;
-/** The opaque structure definition for the stream decoder type.
- * See the \link flac_stream_decoder stream decoder module \endlink
- * for a detailed description.
- */
-typedef struct {
- struct FLAC__StreamDecoderProtected *protected_; /* avoid the C++ keyword 'protected' */
- struct FLAC__StreamDecoderPrivate *private_; /* avoid the C++ keyword 'private' */
-} FLAC__StreamDecoder;
-
-/** Signature for the read callback.
- *
- * A function pointer matching this signature must be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder needs more input data. The address of the
- * buffer to be filled is supplied, along with the number of bytes the
- * buffer can hold. The callback may choose to supply less data and
- * modify the byte count but must be careful not to overflow the buffer.
- * The callback then returns a status code chosen from
- * FLAC__StreamDecoderReadStatus.
- *
- * Here is an example of a read callback for stdio streams:
- * \code
- * FLAC__StreamDecoderReadStatus read_cb(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(*bytes > 0) {
- * *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, file);
- * if(ferror(file))
- * return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- * else if(*bytes == 0)
- * return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- * else
- * return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- * }
- * else
- * return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param buffer A pointer to a location for the callee to store
- * data to be decoded.
- * \param bytes A pointer to the size of the buffer. On entry
- * to the callback, it contains the maximum number
- * of bytes that may be stored in \a buffer. The
- * callee must set it to the actual number of bytes
- * stored (0 in case of error or end-of-stream) before
- * returning.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderReadStatus
- * The callee's return status. Note that the callback should return
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM if and only if
- * zero bytes were read and there is no more data to be read.
- */
-typedef FLAC__StreamDecoderReadStatus (*FLAC__StreamDecoderReadCallback)(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-/** Signature for the seek callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder needs to seek the input stream. The decoder
- * will pass the absolute byte offset to seek to, 0 meaning the
- * beginning of the stream.
- *
- * Here is an example of a seek callback for stdio streams:
- * \code
- * FLAC__StreamDecoderSeekStatus seek_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(file == stdin)
- * return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
- * else if(fseeko(file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
- * return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
- * else
- * return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param absolute_byte_offset The offset from the beginning of the stream
- * to seek to.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderSeekStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderSeekStatus (*FLAC__StreamDecoderSeekCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-
-/** Signature for the tell callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder wants to know the current position of the
- * stream. The callback should return the byte offset from the
- * beginning of the stream.
- *
- * Here is an example of a tell callback for stdio streams:
- * \code
- * FLAC__StreamDecoderTellStatus tell_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * off_t pos;
- * if(file == stdin)
- * return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
- * else if((pos = ftello(file)) < 0)
- * return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
- * else {
- * *absolute_byte_offset = (FLAC__uint64)pos;
- * return FLAC__STREAM_DECODER_TELL_STATUS_OK;
- * }
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param absolute_byte_offset A pointer to storage for the current offset
- * from the beginning of the stream.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderTellStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderTellStatus (*FLAC__StreamDecoderTellCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-
-/** Signature for the length callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder wants to know the total length of the stream
- * in bytes.
- *
- * Here is an example of a length callback for stdio streams:
- * \code
- * FLAC__StreamDecoderLengthStatus length_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * struct stat filestats;
- *
- * if(file == stdin)
- * return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
- * else if(fstat(fileno(file), &filestats) != 0)
- * return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
- * else {
- * *stream_length = (FLAC__uint64)filestats.st_size;
- * return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
- * }
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param stream_length A pointer to storage for the length of the stream
- * in bytes.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderLengthStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderLengthStatus (*FLAC__StreamDecoderLengthCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
-
-/** Signature for the EOF callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder needs to know if the end of the stream has
- * been reached.
- *
- * Here is an example of a EOF callback for stdio streams:
- * FLAC__bool eof_cb(const FLAC__StreamDecoder *decoder, void *client_data)
- * \code
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * return feof(file)? true : false;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__bool
- * \c true if the currently at the end of the stream, else \c false.
- */
-typedef FLAC__bool (*FLAC__StreamDecoderEofCallback)(const FLAC__StreamDecoder *decoder, void *client_data);
-
-/** Signature for the write callback.
- *
- * A function pointer matching this signature must be passed to one of
- * the FLAC__stream_decoder_init_*() functions.
- * The supplied function will be called when the decoder has decoded a
- * single audio frame. The decoder will pass the frame metadata as well
- * as an array of pointers (one for each channel) pointing to the
- * decoded audio.
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param frame The description of the decoded frame. See
- * FLAC__Frame.
- * \param buffer An array of pointers to decoded channels of data.
- * Each pointer will point to an array of signed
- * samples of length \a frame->header.blocksize.
- * Channels will be ordered according to the FLAC
- * specification; see the documentation for the
- * <A HREF="../format.html#frame_header">frame header</A>.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderWriteStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderWriteStatus (*FLAC__StreamDecoderWriteCallback)(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-
-/** Signature for the metadata callback.
- *
- * A function pointer matching this signature must be passed to one of
- * the FLAC__stream_decoder_init_*() functions.
- * The supplied function will be called when the decoder has decoded a
- * metadata block. In a valid FLAC file there will always be one
- * \c STREAMINFO block, followed by zero or more other metadata blocks.
- * These will be supplied by the decoder in the same order as they
- * appear in the stream and always before the first audio frame (i.e.
- * write callback). The metadata block that is passed in must not be
- * modified, and it doesn't live beyond the callback, so you should make
- * a copy of it with FLAC__metadata_object_clone() if you will need it
- * elsewhere. Since metadata blocks can potentially be large, by
- * default the decoder only calls the metadata callback for the
- * \c STREAMINFO block; you can instruct the decoder to pass or filter
- * other blocks with FLAC__stream_decoder_set_metadata_*() calls.
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param metadata The decoded metadata block.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- */
-typedef void (*FLAC__StreamDecoderMetadataCallback)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-
-/** Signature for the error callback.
- *
- * A function pointer matching this signature must be passed to one of
- * the FLAC__stream_decoder_init_*() functions.
- * The supplied function will be called whenever an error occurs during
- * decoding.
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param status The error encountered by the decoder.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- */
-typedef void (*FLAC__StreamDecoderErrorCallback)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-/** Create a new stream decoder instance. The instance is created with
- * default settings; see the individual FLAC__stream_decoder_set_*()
- * functions for each setting's default.
- *
- * \retval FLAC__StreamDecoder*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void);
-
-/** Free a decoder instance. Deletes the object pointed to by \a decoder.
- *
- * \param decoder A pointer to an existing decoder.
- * \assert
- * \code decoder != NULL \endcode
- */
-FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder);
-
-
-/***********************************************************************
- *
- * Public class method prototypes
- *
- ***********************************************************************/
-
-/** Set the serial number for the FLAC stream within the Ogg container.
- * The default behavior is to use the serial number of the first Ogg
- * page. Setting a serial number here will explicitly specify which
- * stream is to be decoded.
- *
- * \note
- * This does not need to be set for native FLAC decoding.
- *
- * \default \c use serial number of first page
- * \param decoder A decoder instance to set.
- * \param serial_number See above.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long serial_number);
-
-/** Set the "MD5 signature checking" flag. If \c true, the decoder will
- * compute the MD5 signature of the unencoded audio data while decoding
- * and compare it to the signature from the STREAMINFO block, if it
- * exists, during FLAC__stream_decoder_finish().
- *
- * MD5 signature checking will be turned off (until the next
- * FLAC__stream_decoder_reset()) if there is no signature in the
- * STREAMINFO block or when a seek is attempted.
- *
- * Clients that do not use the MD5 check should leave this off to speed
- * up decoding.
- *
- * \default \c false
- * \param decoder A decoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value);
-
-/** Direct the decoder to pass on all metadata blocks of type \a type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param type See above.
- * \assert
- * \code decoder != NULL \endcode
- * \a type is valid
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);
-
-/** Direct the decoder to pass on all APPLICATION metadata blocks of the
- * given \a id.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param id See above.
- * \assert
- * \code decoder != NULL \endcode
- * \code id != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
-
-/** Direct the decoder to pass on all metadata blocks of any type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder);
-
-/** Direct the decoder to filter out all metadata blocks of type \a type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param type See above.
- * \assert
- * \code decoder != NULL \endcode
- * \a type is valid
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);
-
-/** Direct the decoder to filter out all APPLICATION metadata blocks of
- * the given \a id.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param id See above.
- * \assert
- * \code decoder != NULL \endcode
- * \code id != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
-
-/** Direct the decoder to filter out all metadata blocks of any type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder);
-
-/** Get the current decoder state.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderState
- * The current decoder state.
- */
-FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder);
-
-/** Get the current decoder state as a C string.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval const char *
- * The decoder state as a C string. Do not modify the contents.
- */
-FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder);
-
-/** Get the "MD5 signature checking" flag.
- * This is the value of the setting, not whether or not the decoder is
- * currently checking the MD5 (remember, it can be turned off automatically
- * by a seek). When the decoder is reset the flag will be restored to the
- * value returned by this function.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * See above.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder);
-
-/** Get the total number of samples in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the \c STREAMINFO block. A value of \c 0 means "unknown".
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder);
-
-/** Get the current number of channels in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder);
-
-/** Get the current channel assignment in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__ChannelAssignment
- * See above.
- */
-FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder);
-
-/** Get the current sample resolution in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder);
-
-/** Get the current sample rate in Hz of the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder);
-
-/** Get the current blocksize of the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder);
-
-/** Returns the decoder's current read position within the stream.
- * The position is the byte offset from the start of the stream.
- * Bytes before this position have been fully decoded. Note that
- * there may still be undecoded bytes in the decoder's read FIFO.
- * The returned position is correct even after a seek.
- *
- * \warning This function currently only works for native FLAC,
- * not Ogg FLAC streams.
- *
- * \param decoder A decoder instance to query.
- * \param position Address at which to return the desired position.
- * \assert
- * \code decoder != NULL \endcode
- * \code position != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, \c false if the stream is not native FLAC,
- * or there was an error from the 'tell' callback or it returned
- * \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position);
-
-/** Initialize the decoder instance to decode native FLAC streams.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * native FLAC stream. I/O is performed via callbacks to the client.
- * For decoding from a plain file via filename or open FILE*,
- * FLAC__stream_decoder_init_file() and FLAC__stream_decoder_init_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \param decoder An uninitialized decoder instance.
- * \param read_callback See FLAC__StreamDecoderReadCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamDecoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is not \c NULL then a
- * \a tell_callback, \a length_callback, and \a eof_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param tell_callback See FLAC__StreamDecoderTellCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param length_callback See FLAC__StreamDecoderLengthCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a length_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param eof_callback See FLAC__StreamDecoderEofCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a eof_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c false
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode Ogg FLAC streams.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * FLAC stream in an Ogg container. I/O is performed via callbacks to the
- * client. For decoding from a plain file via filename or open FILE*,
- * FLAC__stream_decoder_init_ogg_file() and FLAC__stream_decoder_init_ogg_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \note Support for Ogg FLAC in the library is optional. If this
- * library has been built without support for Ogg FLAC, this function
- * will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
- *
- * \param decoder An uninitialized decoder instance.
- * \param read_callback See FLAC__StreamDecoderReadCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamDecoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is not \c NULL then a
- * \a tell_callback, \a length_callback, and \a eof_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param tell_callback See FLAC__StreamDecoderTellCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param length_callback See FLAC__StreamDecoderLengthCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a length_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param eof_callback See FLAC__StreamDecoderEofCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a eof_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c false
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode native FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * plain native FLAC file. For non-stdio streams, you must use
- * FLAC__stream_decoder_init_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \param decoder An uninitialized decoder instance.
- * \param file An open FLAC file. The file should have been
- * opened with mode \c "rb" and rewound. The file
- * becomes owned by the decoder and should not be
- * manipulated by the client while decoding.
- * Unless \a file is \c stdin, it will be closed
- * when FLAC__stream_decoder_finish() is called.
- * Note however that seeking will not work when
- * decoding from \c stdout since it is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode Ogg FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * plain Ogg FLAC file. For non-stdio streams, you must use
- * FLAC__stream_decoder_init_ogg_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \note Support for Ogg FLAC in the library is optional. If this
- * library has been built without support for Ogg FLAC, this function
- * will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
- *
- * \param decoder An uninitialized decoder instance.
- * \param file An open FLAC file. The file should have been
- * opened with mode \c "rb" and rewound. The file
- * becomes owned by the decoder and should not be
- * manipulated by the client while decoding.
- * Unless \a file is \c stdin, it will be closed
- * when FLAC__stream_decoder_finish() is called.
- * Note however that seeking will not work when
- * decoding from \c stdout since it is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode native FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a plain
- * native FLAC file. If POSIX fopen() semantics are not sufficient, (for
- * example, with Unicode filenames on Windows), you must use
- * FLAC__stream_decoder_init_FILE(), or FLAC__stream_decoder_init_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \param decoder An uninitialized decoder instance.
- * \param filename The name of the file to decode from. The file will
- * be opened with fopen(). Use \c NULL to decode from
- * \c stdin. Note that \c stdin is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode Ogg FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a plain
- * Ogg FLAC file. If POSIX fopen() semantics are not sufficient, (for
- * example, with Unicode filenames on Windows), you must use
- * FLAC__stream_decoder_init_ogg_FILE(), or FLAC__stream_decoder_init_ogg_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \note Support for Ogg FLAC in the library is optional. If this
- * library has been built without support for Ogg FLAC, this function
- * will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
- *
- * \param decoder An uninitialized decoder instance.
- * \param filename The name of the file to decode from. The file will
- * be opened with fopen(). Use \c NULL to decode from
- * \c stdin. Note that \c stdin is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Finish the decoding process.
- * Flushes the decoding buffer, releases resources, resets the decoder
- * settings to their defaults, and returns the decoder state to
- * FLAC__STREAM_DECODER_UNINITIALIZED.
- *
- * In the event of a prematurely-terminated decode, it is not strictly
- * necessary to call this immediately before FLAC__stream_decoder_delete()
- * but it is good practice to match every FLAC__stream_decoder_init_*()
- * with a FLAC__stream_decoder_finish().
- *
- * \param decoder An uninitialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if MD5 checking is on AND a STREAMINFO block was available
- * AND the MD5 signature in the STREAMINFO block was non-zero AND the
- * signature does not match the one computed by the decoder; else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder);
-
-/** Flush the stream input.
- * The decoder's input buffer will be cleared and the state set to
- * \c FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC. This will also turn
- * off MD5 checking.
- *
- * \param decoder A decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false if a memory allocation
- * error occurs (in which case the state will be set to
- * \c FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR).
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder);
-
-/** Reset the decoding process.
- * The decoder's input buffer will be cleared and the state set to
- * \c FLAC__STREAM_DECODER_SEARCH_FOR_METADATA. This is similar to
- * FLAC__stream_decoder_finish() except that the settings are
- * preserved; there is no need to call FLAC__stream_decoder_init_*()
- * before decoding again. MD5 checking will be restored to its original
- * setting.
- *
- * If the decoder is seekable, or was initialized with
- * FLAC__stream_decoder_init*_FILE() or FLAC__stream_decoder_init*_file(),
- * the decoder will also attempt to seek to the beginning of the file.
- * If this rewind fails, this function will return \c false. It follows
- * that FLAC__stream_decoder_reset() cannot be used when decoding from
- * \c stdin.
- *
- * If the decoder was initialized with FLAC__stream_encoder_init*_stream()
- * and is not seekable (i.e. no seek callback was provided or the seek
- * callback returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED), it
- * is the duty of the client to start feeding data from the beginning of
- * the stream on the next FLAC__stream_decoder_process() or
- * FLAC__stream_decoder_process_interleaved() call.
- *
- * \param decoder A decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false if a memory allocation occurs
- * (in which case the state will be set to
- * \c FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR) or a seek error
- * occurs (the state will be unchanged).
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder);
-
-/** Decode one metadata block or audio frame.
- * This version instructs the decoder to decode a either a single metadata
- * block or a single frame and stop, unless the callbacks return a fatal
- * error or the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
- *
- * As the decoder needs more input it will call the read callback.
- * Depending on what was decoded, the metadata or write callback will be
- * called with the decoded metadata block or audio frame.
- *
- * Unless there is a fatal read error or end of stream, this function
- * will return once one whole frame is decoded. In other words, if the
- * stream is not synchronized or points to a corrupt frame header, the
- * decoder will continue to try and resync until it gets to a valid
- * frame, then decode one frame, then return. If the decoder points to
- * a frame whose frame CRC in the frame footer does not match the
- * computed frame CRC, this function will issue a
- * FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH error to the
- * error callback, and return, having decoded one complete, although
- * corrupt, frame. (Such corrupted frames are sent as silence of the
- * correct length to the write callback.)
- *
- * \param decoder An initialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder);
-
-/** Decode until the end of the metadata.
- * This version instructs the decoder to decode from the current position
- * and continue until all the metadata has been read, or until the
- * callbacks return a fatal error or the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
- *
- * As the decoder needs more input it will call the read callback.
- * As each metadata block is decoded, the metadata callback will be called
- * with the decoded metadata.
- *
- * \param decoder An initialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder);
-
-/** Decode until the end of the stream.
- * This version instructs the decoder to decode from the current position
- * and continue until the end of stream (the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM), or until the
- * callbacks return a fatal error.
- *
- * As the decoder needs more input it will call the read callback.
- * As each metadata block and frame is decoded, the metadata or write
- * callback will be called with the decoded metadata or frame.
- *
- * \param decoder An initialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder);
-
-/** Skip one audio frame.
- * This version instructs the decoder to 'skip' a single frame and stop,
- * unless the callbacks return a fatal error or the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
- *
- * The decoding flow is the same as what occurs when
- * FLAC__stream_decoder_process_single() is called to process an audio
- * frame, except that this function does not decode the parsed data into
- * PCM or call the write callback. The integrity of the frame is still
- * checked the same way as in the other process functions.
- *
- * This function will return once one whole frame is skipped, in the
- * same way that FLAC__stream_decoder_process_single() will return once
- * one whole frame is decoded.
- *
- * This function can be used in more quickly determining FLAC frame
- * boundaries when decoding of the actual data is not needed, for
- * example when an application is separating a FLAC stream into frames
- * for editing or storing in a container. To do this, the application
- * can use FLAC__stream_decoder_skip_single_frame() to quickly advance
- * to the next frame, then use
- * FLAC__stream_decoder_get_decode_position() to find the new frame
- * boundary.
- *
- * This function should only be called when the stream has advanced
- * past all the metadata, otherwise it will return \c false.
- *
- * \param decoder An initialized decoder instance not in a metadata
- * state.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), or if the decoder
- * is in the FLAC__STREAM_DECODER_SEARCH_FOR_METADATA or
- * FLAC__STREAM_DECODER_READ_METADATA state, else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder);
-
-/** Flush the input and seek to an absolute sample.
- * Decoding will resume at the given sample. Note that because of
- * this, the next write callback may contain a partial block. The
- * client must support seeking the input or this function will fail
- * and return \c false. Furthermore, if the decoder state is
- * \c FLAC__STREAM_DECODER_SEEK_ERROR, then the decoder must be flushed
- * with FLAC__stream_decoder_flush() or reset with
- * FLAC__stream_decoder_reset() before decoding can continue.
- *
- * \param decoder A decoder instance.
- * \param sample The target sample number to seek to.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/FLAC/stream_encoder.h b/src/lib/libflac/include/FLAC/stream_encoder.h
deleted file mode 100644
index f533d8c8430..00000000000
--- a/src/lib/libflac/include/FLAC/stream_encoder.h
+++ /dev/null
@@ -1,1762 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__STREAM_ENCODER_H
-#define FLAC__STREAM_ENCODER_H
-
-#include <stdio.h> /* for FILE */
-#include "export.h"
-#include "format.h"
-#include "stream_decoder.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** \file include/FLAC/stream_encoder.h
- *
- * \brief
- * This module contains the functions which implement the stream
- * encoder.
- *
- * See the detailed documentation in the
- * \link flac_stream_encoder stream encoder \endlink module.
- */
-
-/** \defgroup flac_encoder FLAC/ \*_encoder.h: encoder interfaces
- * \ingroup flac
- *
- * \brief
- * This module describes the encoder layers provided by libFLAC.
- *
- * The stream encoder can be used to encode complete streams either to the
- * client via callbacks, or directly to a file, depending on how it is
- * initialized. When encoding via callbacks, the client provides a write
- * callback which will be called whenever FLAC data is ready to be written.
- * If the client also supplies a seek callback, the encoder will also
- * automatically handle the writing back of metadata discovered while
- * encoding, like stream info, seek points offsets, etc. When encoding to
- * a file, the client needs only supply a filename or open \c FILE* and an
- * optional progress callback for periodic notification of progress; the
- * write and seek callbacks are supplied internally. For more info see the
- * \link flac_stream_encoder stream encoder \endlink module.
- */
-
-/** \defgroup flac_stream_encoder FLAC/stream_encoder.h: stream encoder interface
- * \ingroup flac_encoder
- *
- * \brief
- * This module contains the functions which implement the stream
- * encoder.
- *
- * The stream encoder can encode to native FLAC, and optionally Ogg FLAC
- * (check FLAC_API_SUPPORTS_OGG_FLAC) streams and files.
- *
- * The basic usage of this encoder is as follows:
- * - The program creates an instance of an encoder using
- * FLAC__stream_encoder_new().
- * - The program overrides the default settings using
- * FLAC__stream_encoder_set_*() functions. At a minimum, the following
- * functions should be called:
- * - FLAC__stream_encoder_set_channels()
- * - FLAC__stream_encoder_set_bits_per_sample()
- * - FLAC__stream_encoder_set_sample_rate()
- * - FLAC__stream_encoder_set_ogg_serial_number() (if encoding to Ogg FLAC)
- * - FLAC__stream_encoder_set_total_samples_estimate() (if known)
- * - If the application wants to control the compression level or set its own
- * metadata, then the following should also be called:
- * - FLAC__stream_encoder_set_compression_level()
- * - FLAC__stream_encoder_set_verify()
- * - FLAC__stream_encoder_set_metadata()
- * - The rest of the set functions should only be called if the client needs
- * exact control over how the audio is compressed; thorough understanding
- * of the FLAC format is necessary to achieve good results.
- * - The program initializes the instance to validate the settings and
- * prepare for encoding using
- * - FLAC__stream_encoder_init_stream() or FLAC__stream_encoder_init_FILE()
- * or FLAC__stream_encoder_init_file() for native FLAC
- * - FLAC__stream_encoder_init_ogg_stream() or FLAC__stream_encoder_init_ogg_FILE()
- * or FLAC__stream_encoder_init_ogg_file() for Ogg FLAC
- * - The program calls FLAC__stream_encoder_process() or
- * FLAC__stream_encoder_process_interleaved() to encode data, which
- * subsequently calls the callbacks when there is encoder data ready
- * to be written.
- * - The program finishes the encoding with FLAC__stream_encoder_finish(),
- * which causes the encoder to encode any data still in its input pipe,
- * update the metadata with the final encoding statistics if output
- * seeking is possible, and finally reset the encoder to the
- * uninitialized state.
- * - The instance may be used again or deleted with
- * FLAC__stream_encoder_delete().
- *
- * In more detail, the stream encoder functions similarly to the
- * \link flac_stream_decoder stream decoder \endlink, but has fewer
- * callbacks and more options. Typically the client will create a new
- * instance by calling FLAC__stream_encoder_new(), then set the necessary
- * parameters with FLAC__stream_encoder_set_*(), and initialize it by
- * calling one of the FLAC__stream_encoder_init_*() functions.
- *
- * Unlike the decoders, the stream encoder has many options that can
- * affect the speed and compression ratio. When setting these parameters
- * you should have some basic knowledge of the format (see the
- * <A HREF="../documentation.html#format">user-level documentation</A>
- * or the <A HREF="../format.html">formal description</A>). The
- * FLAC__stream_encoder_set_*() functions themselves do not validate the
- * values as many are interdependent. The FLAC__stream_encoder_init_*()
- * functions will do this, so make sure to pay attention to the state
- * returned by FLAC__stream_encoder_init_*() to make sure that it is
- * FLAC__STREAM_ENCODER_INIT_STATUS_OK. Any parameters that are not set
- * before FLAC__stream_encoder_init_*() will take on the defaults from
- * the constructor.
- *
- * There are three initialization functions for native FLAC, one for
- * setting up the encoder to encode FLAC data to the client via
- * callbacks, and two for encoding directly to a file.
- *
- * For encoding via callbacks, use FLAC__stream_encoder_init_stream().
- * You must also supply a write callback which will be called anytime
- * there is raw encoded data to write. If the client can seek the output
- * it is best to also supply seek and tell callbacks, as this allows the
- * encoder to go back after encoding is finished to write back
- * information that was collected while encoding, like seek point offsets,
- * frame sizes, etc.
- *
- * For encoding directly to a file, use FLAC__stream_encoder_init_FILE()
- * or FLAC__stream_encoder_init_file(). Then you must only supply a
- * filename or open \c FILE*; the encoder will handle all the callbacks
- * internally. You may also supply a progress callback for periodic
- * notification of the encoding progress.
- *
- * There are three similarly-named init functions for encoding to Ogg
- * FLAC streams. Check \c FLAC_API_SUPPORTS_OGG_FLAC to find out if the
- * library has been built with Ogg support.
- *
- * The call to FLAC__stream_encoder_init_*() currently will also immediately
- * call the write callback several times, once with the \c fLaC signature,
- * and once for each encoded metadata block. Note that for Ogg FLAC
- * encoding you will usually get at least twice the number of callbacks than
- * with native FLAC, one for the Ogg page header and one for the page body.
- *
- * After initializing the instance, the client may feed audio data to the
- * encoder in one of two ways:
- *
- * - Channel separate, through FLAC__stream_encoder_process() - The client
- * will pass an array of pointers to buffers, one for each channel, to
- * the encoder, each of the same length. The samples need not be
- * block-aligned, but each channel should have the same number of samples.
- * - Channel interleaved, through
- * FLAC__stream_encoder_process_interleaved() - The client will pass a single
- * pointer to data that is channel-interleaved (i.e. channel0_sample0,
- * channel1_sample0, ... , channelN_sample0, channel0_sample1, ...).
- * Again, the samples need not be block-aligned but they must be
- * sample-aligned, i.e. the first value should be channel0_sample0 and
- * the last value channelN_sampleM.
- *
- * Note that for either process call, each sample in the buffers should be a
- * signed integer, right-justified to the resolution set by
- * FLAC__stream_encoder_set_bits_per_sample(). For example, if the resolution
- * is 16 bits per sample, the samples should all be in the range [-32768,32767].
- *
- * When the client is finished encoding data, it calls
- * FLAC__stream_encoder_finish(), which causes the encoder to encode any
- * data still in its input pipe, and call the metadata callback with the
- * final encoding statistics. Then the instance may be deleted with
- * FLAC__stream_encoder_delete() or initialized again to encode another
- * stream.
- *
- * For programs that write their own metadata, but that do not know the
- * actual metadata until after encoding, it is advantageous to instruct
- * the encoder to write a PADDING block of the correct size, so that
- * instead of rewriting the whole stream after encoding, the program can
- * just overwrite the PADDING block. If only the maximum size of the
- * metadata is known, the program can write a slightly larger padding
- * block, then split it after encoding.
- *
- * Make sure you understand how lengths are calculated. All FLAC metadata
- * blocks have a 4 byte header which contains the type and length. This
- * length does not include the 4 bytes of the header. See the format page
- * for the specification of metadata blocks and their lengths.
- *
- * \note
- * If you are writing the FLAC data to a file via callbacks, make sure it
- * is open for update (e.g. mode "w+" for stdio streams). This is because
- * after the first encoding pass, the encoder will try to seek back to the
- * beginning of the stream, to the STREAMINFO block, to write some data
- * there. (If using FLAC__stream_encoder_init*_file() or
- * FLAC__stream_encoder_init*_FILE(), the file is managed internally.)
- *
- * \note
- * The "set" functions may only be called when the encoder is in the
- * state FLAC__STREAM_ENCODER_UNINITIALIZED, i.e. after
- * FLAC__stream_encoder_new() or FLAC__stream_encoder_finish(), but
- * before FLAC__stream_encoder_init_*(). If this is the case they will
- * return \c true, otherwise \c false.
- *
- * \note
- * FLAC__stream_encoder_finish() resets all settings to the constructor
- * defaults.
- *
- * \{
- */
-
-
-/** State values for a FLAC__StreamEncoder.
- *
- * The encoder's state can be obtained by calling FLAC__stream_encoder_get_state().
- *
- * If the encoder gets into any other state besides \c FLAC__STREAM_ENCODER_OK
- * or \c FLAC__STREAM_ENCODER_UNINITIALIZED, it becomes invalid for encoding and
- * must be deleted with FLAC__stream_encoder_delete().
- */
-typedef enum {
- FLAC__STREAM_ENCODER_OK = 0,
- /**< The encoder is in the normal OK state and samples can be processed. */
-
- FLAC__STREAM_ENCODER_UNINITIALIZED,
- /**< The encoder is in the uninitialized state; one of the
- * FLAC__stream_encoder_init_*() functions must be called before samples
- * can be processed.
- */
-
- FLAC__STREAM_ENCODER_OGG_ERROR,
- /**< An error occurred in the underlying Ogg layer. */
-
- FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR,
- /**< An error occurred in the underlying verify stream decoder;
- * check FLAC__stream_encoder_get_verify_decoder_state().
- */
-
- FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA,
- /**< The verify decoder detected a mismatch between the original
- * audio signal and the decoded audio signal.
- */
-
- FLAC__STREAM_ENCODER_CLIENT_ERROR,
- /**< One of the callbacks returned a fatal error. */
-
- FLAC__STREAM_ENCODER_IO_ERROR,
- /**< An I/O error occurred while opening/reading/writing a file.
- * Check \c errno.
- */
-
- FLAC__STREAM_ENCODER_FRAMING_ERROR,
- /**< An error occurred while writing the stream; usually, the
- * write_callback returned an error.
- */
-
- FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR
- /**< Memory allocation failed. */
-
-} FLAC__StreamEncoderState;
-
-/** Maps a FLAC__StreamEncoderState to a C string.
- *
- * Using a FLAC__StreamEncoderState as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderStateString[];
-
-
-/** Possible return values for the FLAC__stream_encoder_init_*() functions.
- */
-typedef enum {
- FLAC__STREAM_ENCODER_INIT_STATUS_OK = 0,
- /**< Initialization was successful. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR,
- /**< General failure to set up encoder; call FLAC__stream_encoder_get_state() for cause. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER,
- /**< The library was not compiled with support for the given container
- * format.
- */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS,
- /**< A required callback was not supplied. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS,
- /**< The encoder has an invalid setting for number of channels. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE,
- /**< The encoder has an invalid setting for bits-per-sample.
- * FLAC supports 4-32 bps but the reference encoder currently supports
- * only up to 24 bps.
- */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE,
- /**< The encoder has an invalid setting for the input sample rate. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE,
- /**< The encoder has an invalid setting for the block size. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER,
- /**< The encoder has an invalid setting for the maximum LPC order. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION,
- /**< The encoder has an invalid setting for the precision of the quantized linear predictor coefficients. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER,
- /**< The specified block size is less than the maximum LPC order. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE,
- /**< The encoder is bound to the <A HREF="../format.html#subset">Subset</A> but other settings violate it. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA,
- /**< The metadata input to the encoder is invalid, in one of the following ways:
- * - FLAC__stream_encoder_set_metadata() was called with a null pointer but a block count > 0
- * - One of the metadata blocks contains an undefined type
- * - It contains an illegal CUESHEET as checked by FLAC__format_cuesheet_is_legal()
- * - It contains an illegal SEEKTABLE as checked by FLAC__format_seektable_is_legal()
- * - It contains more than one SEEKTABLE block or more than one VORBIS_COMMENT block
- */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED
- /**< FLAC__stream_encoder_init_*() was called when the encoder was
- * already initialized, usually because
- * FLAC__stream_encoder_finish() was not called.
- */
-
-} FLAC__StreamEncoderInitStatus;
-
-/** Maps a FLAC__StreamEncoderInitStatus to a C string.
- *
- * Using a FLAC__StreamEncoderInitStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderInitStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder read callback.
- */
-typedef enum {
- FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE,
- /**< The read was OK and decoding can continue. */
-
- FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM,
- /**< The read was attempted at the end of the stream. */
-
- FLAC__STREAM_ENCODER_READ_STATUS_ABORT,
- /**< An unrecoverable error occurred. */
-
- FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED
- /**< Client does not support reading back from the output. */
-
-} FLAC__StreamEncoderReadStatus;
-
-/** Maps a FLAC__StreamEncoderReadStatus to a C string.
- *
- * Using a FLAC__StreamEncoderReadStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderReadStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder write callback.
- */
-typedef enum {
- FLAC__STREAM_ENCODER_WRITE_STATUS_OK = 0,
- /**< The write was OK and encoding can continue. */
-
- FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR
- /**< An unrecoverable error occurred. The encoder will return from the process call. */
-
-} FLAC__StreamEncoderWriteStatus;
-
-/** Maps a FLAC__StreamEncoderWriteStatus to a C string.
- *
- * Using a FLAC__StreamEncoderWriteStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder seek callback.
- */
-typedef enum {
- FLAC__STREAM_ENCODER_SEEK_STATUS_OK,
- /**< The seek was OK and encoding can continue. */
-
- FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR,
- /**< An unrecoverable error occurred. */
-
- FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
- /**< Client does not support seeking. */
-
-} FLAC__StreamEncoderSeekStatus;
-
-/** Maps a FLAC__StreamEncoderSeekStatus to a C string.
- *
- * Using a FLAC__StreamEncoderSeekStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder tell callback.
- */
-typedef enum {
- FLAC__STREAM_ENCODER_TELL_STATUS_OK,
- /**< The tell was OK and encoding can continue. */
-
- FLAC__STREAM_ENCODER_TELL_STATUS_ERROR,
- /**< An unrecoverable error occurred. */
-
- FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
- /**< Client does not support seeking. */
-
-} FLAC__StreamEncoderTellStatus;
-
-/** Maps a FLAC__StreamEncoderTellStatus to a C string.
- *
- * Using a FLAC__StreamEncoderTellStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderTellStatusString[];
-
-
-/***********************************************************************
- *
- * class FLAC__StreamEncoder
- *
- ***********************************************************************/
-
-struct FLAC__StreamEncoderProtected;
-struct FLAC__StreamEncoderPrivate;
-/** The opaque structure definition for the stream encoder type.
- * See the \link flac_stream_encoder stream encoder module \endlink
- * for a detailed description.
- */
-typedef struct {
- struct FLAC__StreamEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
- struct FLAC__StreamEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
-} FLAC__StreamEncoder;
-
-/** Signature for the read callback.
- *
- * A function pointer matching this signature must be passed to
- * FLAC__stream_encoder_init_ogg_stream() if seeking is supported.
- * The supplied function will be called when the encoder needs to read back
- * encoded data. This happens during the metadata callback, when the encoder
- * has to read, modify, and rewrite the metadata (e.g. seekpoints) gathered
- * while encoding. The address of the buffer to be filled is supplied, along
- * with the number of bytes the buffer can hold. The callback may choose to
- * supply less data and modify the byte count but must be careful not to
- * overflow the buffer. The callback then returns a status code chosen from
- * FLAC__StreamEncoderReadStatus.
- *
- * Here is an example of a read callback for stdio streams:
- * \code
- * FLAC__StreamEncoderReadStatus read_cb(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(*bytes > 0) {
- * *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, file);
- * if(ferror(file))
- * return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
- * else if(*bytes == 0)
- * return FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM;
- * else
- * return FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE;
- * }
- * else
- * return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param buffer A pointer to a location for the callee to store
- * data to be encoded.
- * \param bytes A pointer to the size of the buffer. On entry
- * to the callback, it contains the maximum number
- * of bytes that may be stored in \a buffer. The
- * callee must set it to the actual number of bytes
- * stored (0 in case of error or end-of-stream) before
- * returning.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_set_client_data().
- * \retval FLAC__StreamEncoderReadStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderReadStatus (*FLAC__StreamEncoderReadCallback)(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-/** Signature for the write callback.
- *
- * A function pointer matching this signature must be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * by the encoder anytime there is raw encoded data ready to write. It may
- * include metadata mixed with encoded audio frames and the data is not
- * guaranteed to be aligned on frame or metadata block boundaries.
- *
- * The only duty of the callback is to write out the \a bytes worth of data
- * in \a buffer to the current position in the output stream. The arguments
- * \a samples and \a current_frame are purely informational. If \a samples
- * is greater than \c 0, then \a current_frame will hold the current frame
- * number that is being written; otherwise it indicates that the write
- * callback is being called to write metadata.
- *
- * \note
- * Unlike when writing to native FLAC, when writing to Ogg FLAC the
- * write callback will be called twice when writing each audio
- * frame; once for the page header, and once for the page body.
- * When writing the page header, the \a samples argument to the
- * write callback will be \c 0.
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param buffer An array of encoded data of length \a bytes.
- * \param bytes The byte length of \a buffer.
- * \param samples The number of samples encoded by \a buffer.
- * \c 0 has a special meaning; see above.
- * \param current_frame The number of the current frame being encoded.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- * \retval FLAC__StreamEncoderWriteStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderWriteStatus (*FLAC__StreamEncoderWriteCallback)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
-
-/** Signature for the seek callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * when the encoder needs to seek the output stream. The encoder will pass
- * the absolute byte offset to seek to, 0 meaning the beginning of the stream.
- *
- * Here is an example of a seek callback for stdio streams:
- * \code
- * FLAC__StreamEncoderSeekStatus seek_cb(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(file == stdin)
- * return FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED;
- * else if(fseeko(file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
- * return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
- * else
- * return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param absolute_byte_offset The offset from the beginning of the stream
- * to seek to.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- * \retval FLAC__StreamEncoderSeekStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderSeekStatus (*FLAC__StreamEncoderSeekCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-
-/** Signature for the tell callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * when the encoder needs to know the current position of the output stream.
- *
- * \warning
- * The callback must return the true current byte offset of the output to
- * which the encoder is writing. If you are buffering the output, make
- * sure and take this into account. If you are writing directly to a
- * FILE* from your write callback, ftell() is sufficient. If you are
- * writing directly to a file descriptor from your write callback, you
- * can use lseek(fd, SEEK_CUR, 0). The encoder may later seek back to
- * these points to rewrite metadata after encoding.
- *
- * Here is an example of a tell callback for stdio streams:
- * \code
- * FLAC__StreamEncoderTellStatus tell_cb(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * off_t pos;
- * if(file == stdin)
- * return FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED;
- * else if((pos = ftello(file)) < 0)
- * return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
- * else {
- * *absolute_byte_offset = (FLAC__uint64)pos;
- * return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
- * }
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param absolute_byte_offset The address at which to store the current
- * position of the output.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- * \retval FLAC__StreamEncoderTellStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderTellStatus (*FLAC__StreamEncoderTellCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-
-/** Signature for the metadata callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * once at the end of encoding with the populated STREAMINFO structure. This
- * is so the client can seek back to the beginning of the file and write the
- * STREAMINFO block with the correct statistics after encoding (like
- * minimum/maximum frame size and total samples).
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param metadata The final populated STREAMINFO block.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- */
-typedef void (*FLAC__StreamEncoderMetadataCallback)(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
-
-/** Signature for the progress callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_file() or FLAC__stream_encoder_init*_FILE().
- * The supplied function will be called when the encoder has finished
- * writing a frame. The \c total_frames_estimate argument to the
- * callback will be based on the value from
- * FLAC__stream_encoder_set_total_samples_estimate().
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param bytes_written Bytes written so far.
- * \param samples_written Samples written so far.
- * \param frames_written Frames written so far.
- * \param total_frames_estimate The estimate of the total number of
- * frames to be written.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- */
-typedef void (*FLAC__StreamEncoderProgressCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data);
-
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-/** Create a new stream encoder instance. The instance is created with
- * default settings; see the individual FLAC__stream_encoder_set_*()
- * functions for each setting's default.
- *
- * \retval FLAC__StreamEncoder*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void);
-
-/** Free an encoder instance. Deletes the object pointed to by \a encoder.
- *
- * \param encoder A pointer to an existing encoder.
- * \assert
- * \code encoder != NULL \endcode
- */
-FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder);
-
-
-/***********************************************************************
- *
- * Public class method prototypes
- *
- ***********************************************************************/
-
-/** Set the serial number for the FLAC stream to use in the Ogg container.
- *
- * \note
- * This does not need to be set for native FLAC encoding.
- *
- * \note
- * It is recommended to set a serial number explicitly as the default of '0'
- * may collide with other streams.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param serial_number See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long serial_number);
-
-/** Set the "verify" flag. If \c true, the encoder will verify it's own
- * encoded output by feeding it through an internal decoder and comparing
- * the original signal against the decoded signal. If a mismatch occurs,
- * the process call will return \c false. Note that this will slow the
- * encoding process by the extra time required for decoding and comparison.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set the <A HREF="../format.html#subset">Subset</A> flag. If \c true,
- * the encoder will comply with the Subset and will check the
- * settings during FLAC__stream_encoder_init_*() to see if all settings
- * comply. If \c false, the settings may take advantage of the full
- * range that the format allows.
- *
- * Make sure you know what it entails before setting this to \c false.
- *
- * \default \c true
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set the number of channels to be encoded.
- *
- * \default \c 2
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the sample resolution of the input to be encoded.
- *
- * \warning
- * Do not feed the encoder data that is wider than the value you
- * set here or you will generate an invalid stream.
- *
- * \default \c 16
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the sample rate (in Hz) of the input to be encoded.
- *
- * \default \c 44100
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the compression level
- *
- * The compression level is roughly proportional to the amount of effort
- * the encoder expends to compress the file. A higher level usually
- * means more computation but higher compression. The default level is
- * suitable for most applications.
- *
- * Currently the levels range from \c 0 (fastest, least compression) to
- * \c 8 (slowest, most compression). A value larger than \c 8 will be
- * treated as \c 8.
- *
- * This function automatically calls the following other \c _set_
- * functions with appropriate values, so the client does not need to
- * unless it specifically wants to override them:
- * - FLAC__stream_encoder_set_do_mid_side_stereo()
- * - FLAC__stream_encoder_set_loose_mid_side_stereo()
- * - FLAC__stream_encoder_set_apodization()
- * - FLAC__stream_encoder_set_max_lpc_order()
- * - FLAC__stream_encoder_set_qlp_coeff_precision()
- * - FLAC__stream_encoder_set_do_qlp_coeff_prec_search()
- * - FLAC__stream_encoder_set_do_escape_coding()
- * - FLAC__stream_encoder_set_do_exhaustive_model_search()
- * - FLAC__stream_encoder_set_min_residual_partition_order()
- * - FLAC__stream_encoder_set_max_residual_partition_order()
- * - FLAC__stream_encoder_set_rice_parameter_search_dist()
- *
- * The actual values set for each level are:
- * <table>
- * <tr>
- * <td><b>level</b><td>
- * <td>do mid-side stereo<td>
- * <td>loose mid-side stereo<td>
- * <td>apodization<td>
- * <td>max lpc order<td>
- * <td>qlp coeff precision<td>
- * <td>qlp coeff prec search<td>
- * <td>escape coding<td>
- * <td>exhaustive model search<td>
- * <td>min residual partition order<td>
- * <td>max residual partition order<td>
- * <td>rice parameter search dist<td>
- * </tr>
- * <tr> <td><b>0</b><td> <td>false<td> <td>false<td> <td>tukey(0.5)<td> <td>0<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>3<td> <td>0<td> </tr>
- * <tr> <td><b>1</b><td> <td>true<td> <td>true<td> <td>tukey(0.5)<td> <td>0<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>3<td> <td>0<td> </tr>
- * <tr> <td><b>2</b><td> <td>true<td> <td>false<td> <td>tukey(0.5)<td> <td>0<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>3<td> <td>0<td> </tr>
- * <tr> <td><b>3</b><td> <td>false<td> <td>false<td> <td>tukey(0.5)<td> <td>6<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>4<td> <td>0<td> </tr>
- * <tr> <td><b>4</b><td> <td>true<td> <td>true<td> <td>tukey(0.5)<td> <td>8<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>4<td> <td>0<td> </tr>
- * <tr> <td><b>5</b><td> <td>true<td> <td>false<td> <td>tukey(0.5)<td> <td>8<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>5<td> <td>0<td> </tr>
- * <tr> <td><b>6</b><td> <td>true<td> <td>false<td> <td>tukey(0.5)<td> <td>8<td> <td>0<td> <td>false<td> <td>false<td> <td>false<td> <td>0<td> <td>6<td> <td>0<td> </tr>
- * <tr> <td><b>7</b><td> <td>true<td> <td>false<td> <td>tukey(0.5)<td> <td>8<td> <td>0<td> <td>false<td> <td>false<td> <td>true<td> <td>0<td> <td>6<td> <td>0<td> </tr>
- * <tr> <td><b>8</b><td> <td>true<td> <td>false<td> <td>tukey(0.5)<td> <td>12<td> <td>0<td> <td>false<td> <td>false<td> <td>true<td> <td>0<td> <td>6<td> <td>0<td> </tr>
- * </table>
- *
- * \default \c 5
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the blocksize to use while encoding.
- *
- * The number of samples to use per frame. Use \c 0 to let the encoder
- * estimate a blocksize; this is usually best.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set to \c true to enable mid-side encoding on stereo input. The
- * number of channels must be 2 for this to have any effect. Set to
- * \c false to use only independent channel coding.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set to \c true to enable adaptive switching between mid-side and
- * left-right encoding on stereo input. Set to \c false to use
- * exhaustive searching. Setting this to \c true requires
- * FLAC__stream_encoder_set_do_mid_side_stereo() to also be set to
- * \c true in order to have any effect.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Sets the apodization function(s) the encoder will use when windowing
- * audio data for LPC analysis.
- *
- * The \a specification is a plain ASCII string which specifies exactly
- * which functions to use. There may be more than one (up to 32),
- * separated by \c ';' characters. Some functions take one or more
- * comma-separated arguments in parentheses.
- *
- * The available functions are \c bartlett, \c bartlett_hann,
- * \c blackman, \c blackman_harris_4term_92db, \c connes, \c flattop,
- * \c gauss(STDDEV), \c hamming, \c hann, \c kaiser_bessel, \c nuttall,
- * \c rectangle, \c triangle, \c tukey(P), \c welch.
- *
- * For \c gauss(STDDEV), STDDEV specifies the standard deviation
- * (0<STDDEV<=0.5).
- *
- * For \c tukey(P), P specifies the fraction of the window that is
- * tapered (0<=P<=1). P=0 corresponds to \c rectangle and P=1
- * corresponds to \c hann.
- *
- * Example specifications are \c "blackman" or
- * \c "hann;triangle;tukey(0.5);tukey(0.25);tukey(0.125)"
- *
- * Any function that is specified erroneously is silently dropped. Up
- * to 32 functions are kept, the rest are dropped. If the specification
- * is empty the encoder defaults to \c "tukey(0.5)".
- *
- * When more than one function is specified, then for every subframe the
- * encoder will try each of them separately and choose the window that
- * results in the smallest compressed subframe.
- *
- * Note that each function specified causes the encoder to occupy a
- * floating point array in which to store the window.
- *
- * \default \c "tukey(0.5)"
- * \param encoder An encoder instance to set.
- * \param specification See above.
- * \assert
- * \code encoder != NULL \endcode
- * \code specification != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification);
-
-/** Set the maximum LPC order, or \c 0 to use only the fixed predictors.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the precision, in bits, of the quantized linear predictor
- * coefficients, or \c 0 to let the encoder select it based on the
- * blocksize.
- *
- * \note
- * In the current implementation, qlp_coeff_precision + bits_per_sample must
- * be less than 32.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set to \c false to use only the specified quantized linear predictor
- * coefficient precision, or \c true to search neighboring precision
- * values and use the best one.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Deprecated. Setting this value has no effect.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set to \c false to let the encoder estimate the best model order
- * based on the residual signal energy, or \c true to force the
- * encoder to evaluate all order models and select the best.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set the minimum partition order to search when coding the residual.
- * This is used in tandem with
- * FLAC__stream_encoder_set_max_residual_partition_order().
- *
- * The partition order determines the context size in the residual.
- * The context size will be approximately <tt>blocksize / (2 ^ order)</tt>.
- *
- * Set both min and max values to \c 0 to force a single context,
- * whose Rice parameter is based on the residual signal variance.
- * Otherwise, set a min and max order, and the encoder will search
- * all orders, using the mean of each context for its Rice parameter,
- * and use the best.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the maximum partition order to search when coding the residual.
- * This is used in tandem with
- * FLAC__stream_encoder_set_min_residual_partition_order().
- *
- * The partition order determines the context size in the residual.
- * The context size will be approximately <tt>blocksize / (2 ^ order)</tt>.
- *
- * Set both min and max values to \c 0 to force a single context,
- * whose Rice parameter is based on the residual signal variance.
- * Otherwise, set a min and max order, and the encoder will search
- * all orders, using the mean of each context for its Rice parameter,
- * and use the best.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Deprecated. Setting this value has no effect.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set an estimate of the total samples that will be encoded.
- * This is merely an estimate and may be set to \c 0 if unknown.
- * This value will be written to the STREAMINFO block before encoding,
- * and can remove the need for the caller to rewrite the value later
- * if the value is known before encoding.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value);
-
-/** Set the metadata blocks to be emitted to the stream before encoding.
- * A value of \c NULL, \c 0 implies no metadata; otherwise, supply an
- * array of pointers to metadata blocks. The array is non-const since
- * the encoder may need to change the \a is_last flag inside them, and
- * in some cases update seek point offsets. Otherwise, the encoder will
- * not modify or free the blocks. It is up to the caller to free the
- * metadata blocks after encoding finishes.
- *
- * \note
- * The encoder stores only copies of the pointers in the \a metadata array;
- * the metadata blocks themselves must survive at least until after
- * FLAC__stream_encoder_finish() returns. Do not free the blocks until then.
- *
- * \note
- * The STREAMINFO block is always written and no STREAMINFO block may
- * occur in the supplied array.
- *
- * \note
- * By default the encoder does not create a SEEKTABLE. If one is supplied
- * in the \a metadata array, but the client has specified that it does not
- * support seeking, then the SEEKTABLE will be written verbatim. However
- * by itself this is not very useful as the client will not know the stream
- * offsets for the seekpoints ahead of time. In order to get a proper
- * seektable the client must support seeking. See next note.
- *
- * \note
- * SEEKTABLE blocks are handled specially. Since you will not know
- * the values for the seek point stream offsets, you should pass in
- * a SEEKTABLE 'template', that is, a SEEKTABLE object with the
- * required sample numbers (or placeholder points), with \c 0 for the
- * \a frame_samples and \a stream_offset fields for each point. If the
- * client has specified that it supports seeking by providing a seek
- * callback to FLAC__stream_encoder_init_stream() or both seek AND read
- * callback to FLAC__stream_encoder_init_ogg_stream() (or by using
- * FLAC__stream_encoder_init*_file() or FLAC__stream_encoder_init*_FILE()),
- * then while it is encoding the encoder will fill the stream offsets in
- * for you and when encoding is finished, it will seek back and write the
- * real values into the SEEKTABLE block in the stream. There are helper
- * routines for manipulating seektable template blocks; see metadata.h:
- * FLAC__metadata_object_seektable_template_*(). If the client does
- * not support seeking, the SEEKTABLE will have inaccurate offsets which
- * will slow down or remove the ability to seek in the FLAC stream.
- *
- * \note
- * The encoder instance \b will modify the first \c SEEKTABLE block
- * as it transforms the template to a valid seektable while encoding,
- * but it is still up to the caller to free all metadata blocks after
- * encoding.
- *
- * \note
- * A VORBIS_COMMENT block may be supplied. The vendor string in it
- * will be ignored. libFLAC will use it's own vendor string. libFLAC
- * will not modify the passed-in VORBIS_COMMENT's vendor string, it
- * will simply write it's own into the stream. If no VORBIS_COMMENT
- * block is present in the \a metadata array, libFLAC will write an
- * empty one, containing only the vendor string.
- *
- * \note The Ogg FLAC mapping requires that the VORBIS_COMMENT block be
- * the second metadata block of the stream. The encoder already supplies
- * the STREAMINFO block automatically. If \a metadata does not contain a
- * VORBIS_COMMENT block, the encoder will supply that too. Otherwise, if
- * \a metadata does contain a VORBIS_COMMENT block and it is not the
- * first, the init function will reorder \a metadata by moving the
- * VORBIS_COMMENT block to the front; the relative ordering of the other
- * blocks will remain as they were.
- *
- * \note The Ogg FLAC mapping limits the number of metadata blocks per
- * stream to \c 65535. If \a num_blocks exceeds this the function will
- * return \c false.
- *
- * \default \c NULL, 0
- * \param encoder An encoder instance to set.
- * \param metadata See above.
- * \param num_blocks See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- * \c false if the encoder is already initialized, or if
- * \a num_blocks > 65535 if encoding to Ogg FLAC, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks);
-
-/** Get the current encoder state.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderState
- * The current encoder state.
- */
-FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder);
-
-/** Get the state of the verify stream decoder.
- * Useful when the stream encoder state is
- * \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamDecoderState
- * The verify stream decoder state.
- */
-FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder);
-
-/** Get the current encoder state as a C string.
- * This version automatically resolves
- * \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR by getting the
- * verify decoder's state.
- *
- * \param encoder A encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval const char *
- * The encoder state as a C string. Do not modify the contents.
- */
-FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder);
-
-/** Get relevant values about the nature of a verify decoder error.
- * Useful when the stream encoder state is
- * \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR. The arguments should
- * be addresses in which the stats will be returned, or NULL if value
- * is not desired.
- *
- * \param encoder An encoder instance to query.
- * \param absolute_sample The absolute sample number of the mismatch.
- * \param frame_number The number of the frame in which the mismatch occurred.
- * \param channel The channel in which the mismatch occurred.
- * \param sample The number of the sample (relative to the frame) in
- * which the mismatch occurred.
- * \param expected The expected value for the sample in question.
- * \param got The actual value returned by the decoder.
- * \assert
- * \code encoder != NULL \endcode
- */
-FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got);
-
-/** Get the "verify" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_verify().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder);
-
-/** Get the <A HREF="../format.html#subset>Subset</A> flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_streamable_subset().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder);
-
-/** Get the number of input channels being processed.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_channels().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder);
-
-/** Get the input sample resolution setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_bits_per_sample().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder);
-
-/** Get the input sample rate setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_sample_rate().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder);
-
-/** Get the blocksize setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_blocksize().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder);
-
-/** Get the "mid/side stereo coding" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_get_do_mid_side_stereo().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder);
-
-/** Get the "adaptive mid/side switching" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_loose_mid_side_stereo().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder);
-
-/** Get the maximum LPC order setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_max_lpc_order().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder);
-
-/** Get the quantized linear predictor coefficient precision setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_qlp_coeff_precision().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder);
-
-/** Get the qlp coefficient precision search flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_do_qlp_coeff_prec_search().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder);
-
-/** Get the "escape coding" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_do_escape_coding().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder);
-
-/** Get the exhaustive model search flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_do_exhaustive_model_search().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder);
-
-/** Get the minimum residual partition order setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_min_residual_partition_order().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder);
-
-/** Get maximum residual partition order setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_max_residual_partition_order().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder);
-
-/** Get the Rice parameter search distance setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_rice_parameter_search_dist().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder);
-
-/** Get the previously set estimate of the total samples to be encoded.
- * The encoder merely mimics back the value given to
- * FLAC__stream_encoder_set_total_samples_estimate() since it has no
- * other way of knowing how many samples the client will encode.
- *
- * \param encoder An encoder instance to set.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__uint64
- * See FLAC__stream_encoder_get_total_samples_estimate().
- */
-FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder);
-
-/** Initialize the encoder instance to encode native FLAC streams.
- *
- * This flavor of initialization sets up the encoder to encode to a
- * native FLAC stream. I/O is performed via callbacks to the client.
- * For encoding to a plain file via filename or open \c FILE*,
- * FLAC__stream_encoder_init_file() and FLAC__stream_encoder_init_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * The call to FLAC__stream_encoder_init_stream() currently will also
- * immediately call the write callback several times, once with the \c fLaC
- * signature, and once for each encoded metadata block.
- *
- * \param encoder An uninitialized encoder instance.
- * \param write_callback See FLAC__StreamEncoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamEncoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. The encoder uses seeking to go back
- * and write some some stream statistics to the
- * STREAMINFO block; this is recommended but not
- * necessary to create a valid FLAC stream. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param tell_callback See FLAC__StreamEncoderTellCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is \c NULL then
- * this argument will be ignored. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param metadata_callback See FLAC__StreamEncoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired. If the client provides a seek callback,
- * this function is not necessary as the encoder
- * will automatically seek back and update the
- * STREAMINFO block. It may also be \c NULL if the
- * client does not support seeking, since it will
- * have no way of going back to update the
- * STREAMINFO. However the client can still supply
- * a callback if it would like to know the details
- * from the STREAMINFO.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteCallback write_callback, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderTellCallback tell_callback, FLAC__StreamEncoderMetadataCallback metadata_callback, void *client_data);
-
-/** Initialize the encoder instance to encode Ogg FLAC streams.
- *
- * This flavor of initialization sets up the encoder to encode to a FLAC
- * stream in an Ogg container. I/O is performed via callbacks to the
- * client. For encoding to a plain file via filename or open \c FILE*,
- * FLAC__stream_encoder_init_ogg_file() and FLAC__stream_encoder_init_ogg_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * The call to FLAC__stream_encoder_init_ogg_stream() currently will also
- * immediately call the write callback several times to write the metadata
- * packets.
- *
- * \param encoder An uninitialized encoder instance.
- * \param read_callback See FLAC__StreamEncoderReadCallback. This
- * pointer must not be \c NULL if \a seek_callback
- * is non-NULL since they are both needed to be
- * able to write data back to the Ogg FLAC stream
- * in the post-encode phase.
- * \param write_callback See FLAC__StreamEncoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamEncoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. The encoder uses seeking to go back
- * and write some some stream statistics to the
- * STREAMINFO block; this is recommended but not
- * necessary to create a valid FLAC stream. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param tell_callback See FLAC__StreamEncoderTellCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is \c NULL then
- * this argument will be ignored. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param metadata_callback See FLAC__StreamEncoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired. If the client provides a seek callback,
- * this function is not necessary as the encoder
- * will automatically seek back and update the
- * STREAMINFO block. It may also be \c NULL if the
- * client does not support seeking, since it will
- * have no way of going back to update the
- * STREAMINFO. However the client can still supply
- * a callback if it would like to know the details
- * from the STREAMINFO.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderReadCallback read_callback, FLAC__StreamEncoderWriteCallback write_callback, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderTellCallback tell_callback, FLAC__StreamEncoderMetadataCallback metadata_callback, void *client_data);
-
-/** Initialize the encoder instance to encode native FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a
- * plain native FLAC file. For non-stdio streams, you must use
- * FLAC__stream_encoder_init_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param file An open file. The file should have been opened
- * with mode \c "w+b" and rewound. The file
- * becomes owned by the encoder and should not be
- * manipulated by the client while encoding.
- * Unless \a file is \c stdout, it will be closed
- * when FLAC__stream_encoder_finish() is called.
- * Note however that a proper SEEKTABLE cannot be
- * created when encoding to \c stdout since it is
- * not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(FLAC__StreamEncoder *encoder, FILE *file, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Initialize the encoder instance to encode Ogg FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a
- * plain Ogg FLAC file. For non-stdio streams, you must use
- * FLAC__stream_encoder_init_ogg_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param file An open file. The file should have been opened
- * with mode \c "w+b" and rewound. The file
- * becomes owned by the encoder and should not be
- * manipulated by the client while encoding.
- * Unless \a file is \c stdout, it will be closed
- * when FLAC__stream_encoder_finish() is called.
- * Note however that a proper SEEKTABLE cannot be
- * created when encoding to \c stdout since it is
- * not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(FLAC__StreamEncoder *encoder, FILE *file, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Initialize the encoder instance to encode native FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a plain
- * FLAC file. If POSIX fopen() semantics are not sufficient (for example,
- * with Unicode filenames on Windows), you must use
- * FLAC__stream_encoder_init_FILE(), or FLAC__stream_encoder_init_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param filename The name of the file to encode to. The file will
- * be opened with fopen(). Use \c NULL to encode to
- * \c stdout. Note however that a proper SEEKTABLE
- * cannot be created when encoding to \c stdout since
- * it is not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(FLAC__StreamEncoder *encoder, const char *filename, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Initialize the encoder instance to encode Ogg FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a plain
- * Ogg FLAC file. If POSIX fopen() semantics are not sufficient (for example,
- * with Unicode filenames on Windows), you must use
- * FLAC__stream_encoder_init_ogg_FILE(), or FLAC__stream_encoder_init_ogg_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param filename The name of the file to encode to. The file will
- * be opened with fopen(). Use \c NULL to encode to
- * \c stdout. Note however that a proper SEEKTABLE
- * cannot be created when encoding to \c stdout since
- * it is not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(FLAC__StreamEncoder *encoder, const char *filename, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Finish the encoding process.
- * Flushes the encoding buffer, releases resources, resets the encoder
- * settings to their defaults, and returns the encoder state to
- * FLAC__STREAM_ENCODER_UNINITIALIZED. Note that this can generate
- * one or more write callbacks before returning, and will generate
- * a metadata callback.
- *
- * Note that in the course of processing the last frame, errors can
- * occur, so the caller should be sure to check the return value to
- * ensure the file was encoded properly.
- *
- * In the event of a prematurely-terminated encode, it is not strictly
- * necessary to call this immediately before FLAC__stream_encoder_delete()
- * but it is good practice to match every FLAC__stream_encoder_init_*()
- * with a FLAC__stream_encoder_finish().
- *
- * \param encoder An uninitialized encoder instance.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if an error occurred processing the last frame; or if verify
- * mode is set (see FLAC__stream_encoder_set_verify()), there was a
- * verify mismatch; else \c true. If \c false, caller should check the
- * state with FLAC__stream_encoder_get_state() for more information
- * about the error.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder);
-
-/** Submit data for encoding.
- * This version allows you to supply the input data via an array of
- * pointers, each pointer pointing to an array of \a samples samples
- * representing one channel. The samples need not be block-aligned,
- * but each channel should have the same number of samples. Each sample
- * should be a signed integer, right-justified to the resolution set by
- * FLAC__stream_encoder_set_bits_per_sample(). For example, if the
- * resolution is 16 bits per sample, the samples should all be in the
- * range [-32768,32767].
- *
- * For applications where channel order is important, channels must
- * follow the order as described in the
- * <A HREF="../format.html#frame_header">frame header</A>.
- *
- * \param encoder An initialized encoder instance in the OK state.
- * \param buffer An array of pointers to each channel's signal.
- * \param samples The number of samples in one channel.
- * \assert
- * \code encoder != NULL \endcode
- * \code FLAC__stream_encoder_get_state(encoder) == FLAC__STREAM_ENCODER_OK \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false; in this case, check the
- * encoder state with FLAC__stream_encoder_get_state() to see what
- * went wrong.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);
-
-/** Submit data for encoding.
- * This version allows you to supply the input data where the channels
- * are interleaved into a single array (i.e. channel0_sample0,
- * channel1_sample0, ... , channelN_sample0, channel0_sample1, ...).
- * The samples need not be block-aligned but they must be
- * sample-aligned, i.e. the first value should be channel0_sample0
- * and the last value channelN_sampleM. Each sample should be a signed
- * integer, right-justified to the resolution set by
- * FLAC__stream_encoder_set_bits_per_sample(). For example, if the
- * resolution is 16 bits per sample, the samples should all be in the
- * range [-32768,32767].
- *
- * For applications where channel order is important, channels must
- * follow the order as described in the
- * <A HREF="../format.html#frame_header">frame header</A>.
- *
- * \param encoder An initialized encoder instance in the OK state.
- * \param buffer An array of channel-interleaved data (see above).
- * \param samples The number of samples in one channel, the same as for
- * FLAC__stream_encoder_process(). For example, if
- * encoding two channels, \c 1000 \a samples corresponds
- * to a \a buffer of 2000 values.
- * \assert
- * \code encoder != NULL \endcode
- * \code FLAC__stream_encoder_get_state(encoder) == FLAC__STREAM_ENCODER_OK \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false; in this case, check the
- * encoder state with FLAC__stream_encoder_get_state() to see what
- * went wrong.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/src/lib/libflac/include/share/alloc.h b/src/lib/libflac/include/share/alloc.h
deleted file mode 100644
index 3fdfad2991a..00000000000
--- a/src/lib/libflac/include/share/alloc.h
+++ /dev/null
@@ -1,212 +0,0 @@
-/* alloc - Convenience routines for safely allocating memory
- * Copyright (C) 2007 Josh Coalson
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef FLAC__SHARE__ALLOC_H
-#define FLAC__SHARE__ALLOC_H
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* WATCHOUT: for c++ you may have to #define __STDC_LIMIT_MACROS 1 real early
- * before #including this file, otherwise SIZE_MAX might not be defined
- */
-
-#include <limits.h> /* for SIZE_MAX */
-#if !defined _MSC_VER && !defined __MINGW32__ && !defined __EMX__
-#include <stdint.h> /* for SIZE_MAX in case limits.h didn't get it */
-#endif
-#include <stdlib.h> /* for size_t, malloc(), etc */
-
-#ifndef SIZE_MAX
-# ifndef SIZE_T_MAX
-# ifdef _MSC_VER
-# define SIZE_T_MAX UINT_MAX
-# else
-# error
-# endif
-# endif
-# define SIZE_MAX SIZE_T_MAX
-#endif
-
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
-/* avoid malloc()ing 0 bytes, see:
- * https://www.securecoding.cert.org/confluence/display/seccode/MEM04-A.+Do+not+make+assumptions+about+the+result+of+allocating+0+bytes?focusedCommentId=5407003
-*/
-static FLaC__INLINE void *safe_malloc_(size_t size)
-{
- /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(!size)
- size++;
- return malloc(size);
-}
-
-static FLaC__INLINE void *safe_calloc_(size_t nmemb, size_t size)
-{
- if(!nmemb || !size)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- return calloc(nmemb, size);
-}
-
-/*@@@@ there's probably a better way to prevent overflows when allocating untrusted sums but this works for now */
-
-static FLaC__INLINE void *safe_malloc_add_2op_(size_t size1, size_t size2)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- return safe_malloc_(size2);
-}
-
-static FLaC__INLINE void *safe_malloc_add_3op_(size_t size1, size_t size2, size_t size3)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- return safe_malloc_(size3);
-}
-
-static FLaC__INLINE void *safe_malloc_add_4op_(size_t size1, size_t size2, size_t size3, size_t size4)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- size4 += size3;
- if(size4 < size3)
- return 0;
- return safe_malloc_(size4);
-}
-
-static FLaC__INLINE void *safe_malloc_mul_2op_(size_t size1, size_t size2)
-#if 0
-needs support for cases where sizeof(size_t) != 4
-{
- /* could be faster #ifdef'ing off SIZEOF_SIZE_T */
- if(sizeof(size_t) == 4) {
- if ((double)size1 * (double)size2 < 4294967296.0)
- return malloc(size1*size2);
- }
- return 0;
-}
-#else
-/* better? */
-{
- if(!size1 || !size2)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(size1 > SIZE_MAX / size2)
- return 0;
- return malloc(size1*size2);
-}
-#endif
-
-static FLaC__INLINE void *safe_malloc_mul_3op_(size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || !size2 || !size3)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(size1 > SIZE_MAX / size2)
- return 0;
- size1 *= size2;
- if(size1 > SIZE_MAX / size3)
- return 0;
- return malloc(size1*size3);
-}
-
-/* size1*size2 + size3 */
-static FLaC__INLINE void *safe_malloc_mul2add_(size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || !size2)
- return safe_malloc_(size3);
- if(size1 > SIZE_MAX / size2)
- return 0;
- return safe_malloc_add_2op_(size1*size2, size3);
-}
-
-/* size1 * (size2 + size3) */
-static FLaC__INLINE void *safe_malloc_muladd2_(size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || (!size2 && !size3))
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- size2 += size3;
- if(size2 < size3)
- return 0;
- return safe_malloc_mul_2op_(size1, size2);
-}
-
-static FLaC__INLINE void *safe_realloc_add_2op_(void *ptr, size_t size1, size_t size2)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- return realloc(ptr, size2);
-}
-
-static FLaC__INLINE void *safe_realloc_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- return realloc(ptr, size3);
-}
-
-static FLaC__INLINE void *safe_realloc_add_4op_(void *ptr, size_t size1, size_t size2, size_t size3, size_t size4)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- size4 += size3;
- if(size4 < size3)
- return 0;
- return realloc(ptr, size4);
-}
-
-static FLaC__INLINE void *safe_realloc_mul_2op_(void *ptr, size_t size1, size_t size2)
-{
- if(!size1 || !size2)
- return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
- if(size1 > SIZE_MAX / size2)
- return 0;
- return realloc(ptr, size1*size2);
-}
-
-/* size1 * (size2 + size3) */
-static FLaC__INLINE void *safe_realloc_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || (!size2 && !size3))
- return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
- size2 += size3;
- if(size2 < size3)
- return 0;
- return safe_realloc_mul_2op_(ptr, size1, size2);
-}
-
-#endif
diff --git a/src/lib/libflac/include/share/utf8.h b/src/lib/libflac/include/share/utf8.h
deleted file mode 100644
index 7d6650d60d9..00000000000
--- a/src/lib/libflac/include/share/utf8.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef SHARE__UTF8_H
-#define SHARE__UTF8_H
-
-/*
- * Convert a string between UTF-8 and the locale's charset.
- * Invalid bytes are replaced by '#', and characters that are
- * not available in the target encoding are replaced by '?'.
- *
- * If the locale's charset is not set explicitly then it is
- * obtained using nl_langinfo(CODESET), where available, the
- * environment variable CHARSET, or assumed to be US-ASCII.
- *
- * Return value of conversion functions:
- *
- * -1 : memory allocation failed
- * 0 : data was converted exactly
- * 1 : valid data was converted approximately (using '?')
- * 2 : input was invalid (but still converted, using '#')
- * 3 : unknown encoding (but still converted, using '?')
- */
-
-int utf8_encode(const char *from, char **to);
-int utf8_decode(const char *from, char **to);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/bitmath.c b/src/lib/libflac/libFLAC/bitmath.c
deleted file mode 100644
index af19c35445a..00000000000
--- a/src/lib/libflac/libFLAC/bitmath.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/bitmath.h"
-#include "FLAC/assert.h"
-
-/* An example of what FLAC__bitmath_ilog2() computes:
- *
- * ilog2( 0) = assertion failure
- * ilog2( 1) = 0
- * ilog2( 2) = 1
- * ilog2( 3) = 1
- * ilog2( 4) = 2
- * ilog2( 5) = 2
- * ilog2( 6) = 2
- * ilog2( 7) = 2
- * ilog2( 8) = 3
- * ilog2( 9) = 3
- * ilog2(10) = 3
- * ilog2(11) = 3
- * ilog2(12) = 3
- * ilog2(13) = 3
- * ilog2(14) = 3
- * ilog2(15) = 3
- * ilog2(16) = 4
- * ilog2(17) = 4
- * ilog2(18) = 4
- */
-unsigned FLAC__bitmath_ilog2(FLAC__uint32 v)
-{
- unsigned l = 0;
- FLAC__ASSERT(v > 0);
- while(v >>= 1)
- l++;
- return l;
-}
-
-unsigned FLAC__bitmath_ilog2_wide(FLAC__uint64 v)
-{
- unsigned l = 0;
- FLAC__ASSERT(v > 0);
- while(v >>= 1)
- l++;
- return l;
-}
-
-/* An example of what FLAC__bitmath_silog2() computes:
- *
- * silog2(-10) = 5
- * silog2(- 9) = 5
- * silog2(- 8) = 4
- * silog2(- 7) = 4
- * silog2(- 6) = 4
- * silog2(- 5) = 4
- * silog2(- 4) = 3
- * silog2(- 3) = 3
- * silog2(- 2) = 2
- * silog2(- 1) = 2
- * silog2( 0) = 0
- * silog2( 1) = 2
- * silog2( 2) = 3
- * silog2( 3) = 3
- * silog2( 4) = 4
- * silog2( 5) = 4
- * silog2( 6) = 4
- * silog2( 7) = 4
- * silog2( 8) = 5
- * silog2( 9) = 5
- * silog2( 10) = 5
- */
-unsigned FLAC__bitmath_silog2(int v)
-{
- while(1) {
- if(v == 0) {
- return 0;
- }
- else if(v > 0) {
- unsigned l = 0;
- while(v) {
- l++;
- v >>= 1;
- }
- return l+1;
- }
- else if(v == -1) {
- return 2;
- }
- else {
- v++;
- v = -v;
- }
- }
-}
-
-unsigned FLAC__bitmath_silog2_wide(FLAC__int64 v)
-{
- while(1) {
- if(v == 0) {
- return 0;
- }
- else if(v > 0) {
- unsigned l = 0;
- while(v) {
- l++;
- v >>= 1;
- }
- return l+1;
- }
- else if(v == -1) {
- return 2;
- }
- else {
- v++;
- v = -v;
- }
- }
-}
diff --git a/src/lib/libflac/libFLAC/bitreader.c b/src/lib/libflac/libFLAC/bitreader.c
deleted file mode 100644
index c6b8fe3b53f..00000000000
--- a/src/lib/libflac/libFLAC/bitreader.c
+++ /dev/null
@@ -1,1377 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcpy(), memset() */
-#ifdef _MSC_VER
-#include <winsock.h> /* for ntohl() */
-#elif defined FLAC__SYS_DARWIN
-#include <machine/endian.h> /* for ntohl() */
-#elif defined __MINGW32__
-#include <winsock.h> /* for ntohl() */
-#else
-#include <netinet/in.h> /* for ntohl() */
-#endif
-#include "private/bitmath.h"
-#include "private/bitreader.h"
-#include "private/crc.h"
-#include "FLAC/assert.h"
-
-/* Things should be fastest when this matches the machine word size */
-/* WATCHOUT: if you change this you must also change the following #defines down to COUNT_ZERO_MSBS below to match */
-/* WATCHOUT: there are a few places where the code will not work unless brword is >= 32 bits wide */
-/* also, some sections currently only have fast versions for 4 or 8 bytes per word */
-typedef FLAC__uint32 brword;
-#define FLAC__BYTES_PER_WORD 4
-#define FLAC__BITS_PER_WORD 32
-#define FLAC__WORD_ALL_ONES ((FLAC__uint32)0xffffffff)
-/* SWAP_BE_WORD_TO_HOST swaps bytes in a brword (which is always big-endian) if necessary to match host byte order */
-#if WORDS_BIGENDIAN
-#define SWAP_BE_WORD_TO_HOST(x) (x)
-#else
-#ifdef _MSC_VER
-#define SWAP_BE_WORD_TO_HOST(x) local_swap32_(x)
-#else
-#define SWAP_BE_WORD_TO_HOST(x) ntohl(x)
-#endif
-#endif
-/* counts the # of zero MSBs in a word */
-#define COUNT_ZERO_MSBS(word) ( \
- (word) <= 0xffff ? \
- ( (word) <= 0xff? byte_to_unary_table[word] + 24 : byte_to_unary_table[(word) >> 8] + 16 ) : \
- ( (word) <= 0xffffff? byte_to_unary_table[word >> 16] + 8 : byte_to_unary_table[(word) >> 24] ) \
-)
-/* this alternate might be slightly faster on some systems/compilers: */
-#define COUNT_ZERO_MSBS2(word) ( (word) <= 0xff ? byte_to_unary_table[word] + 24 : ((word) <= 0xffff ? byte_to_unary_table[(word) >> 8] + 16 : ((word) <= 0xffffff ? byte_to_unary_table[(word) >> 16] + 8 : byte_to_unary_table[(word) >> 24])) )
-
-
-/*
- * This should be at least twice as large as the largest number of words
- * required to represent any 'number' (in any encoding) you are going to
- * read. With FLAC this is on the order of maybe a few hundred bits.
- * If the buffer is smaller than that, the decoder won't be able to read
- * in a whole number that is in a variable length encoding (e.g. Rice).
- * But to be practical it should be at least 1K bytes.
- *
- * Increase this number to decrease the number of read callbacks, at the
- * expense of using more memory. Or decrease for the reverse effect,
- * keeping in mind the limit from the first paragraph. The optimal size
- * also depends on the CPU cache size and other factors; some twiddling
- * may be necessary to squeeze out the best performance.
- */
-static const unsigned FLAC__BITREADER_DEFAULT_CAPACITY = 65536u / FLAC__BITS_PER_WORD; /* in words */
-
-static const unsigned char byte_to_unary_table[] = {
- 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-#ifdef min
-#undef min
-#endif
-#define min(x,y) ((x)<(y)?(x):(y))
-#ifdef max
-#undef max
-#endif
-#define max(x,y) ((x)>(y)?(x):(y))
-
-/* adjust for compilers that can't understand using LLU suffix for uint64_t literals */
-#ifdef _MSC_VER
-#define FLAC__U64L(x) x
-#else
-#define FLAC__U64L(x) x##LLU
-#endif
-
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
-/* WATCHOUT: assembly routines rely on the order in which these fields are declared */
-struct FLAC__BitReader {
- /* any partially-consumed word at the head will stay right-justified as bits are consumed from the left */
- /* any incomplete word at the tail will be left-justified, and bytes from the read callback are added on the right */
- brword *buffer;
- unsigned capacity; /* in words */
- unsigned words; /* # of completed words in buffer */
- unsigned bytes; /* # of bytes in incomplete word at buffer[words] */
- unsigned consumed_words; /* #words ... */
- unsigned consumed_bits; /* ... + (#bits of head word) already consumed from the front of buffer */
- unsigned read_crc16; /* the running frame CRC */
- unsigned crc16_align; /* the number of bits in the current consumed word that should not be CRC'd */
- FLAC__BitReaderReadCallback read_callback;
- void *client_data;
- FLAC__CPUInfo cpu_info;
-};
-
-#ifdef _MSC_VER
-/* OPT: an MSVC built-in would be better */
-static _inline FLAC__uint32 local_swap32_(FLAC__uint32 x)
-{
- x = ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
- return (x>>16) | (x<<16);
-}
-
-#if defined(_M_IX86)
-static void local_swap32_block_(FLAC__uint32 *start, FLAC__uint32 len)
-{
- __asm {
- mov edx, start
- mov ecx, len
- test ecx, ecx
-loop1:
- jz done1
- mov eax, [edx]
- bswap eax
- mov [edx], eax
- add edx, 4
- dec ecx
- jmp short loop1
-done1:
- }
-}
-#endif
-#endif
-
-static FLaC__INLINE void crc16_update_word_(FLAC__BitReader *br, brword word)
-{
- register unsigned crc = br->read_crc16;
-#if FLAC__BYTES_PER_WORD == 4
- switch(br->crc16_align) {
- case 0: crc = FLAC__CRC16_UPDATE((unsigned)(word >> 24), crc);
- case 8: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 16) & 0xff), crc);
- case 16: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 8) & 0xff), crc);
- case 24: br->read_crc16 = FLAC__CRC16_UPDATE((unsigned)(word & 0xff), crc);
- }
-#elif FLAC__BYTES_PER_WORD == 8
- switch(br->crc16_align) {
- case 0: crc = FLAC__CRC16_UPDATE((unsigned)(word >> 56), crc);
- case 8: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 48) & 0xff), crc);
- case 16: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 40) & 0xff), crc);
- case 24: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 32) & 0xff), crc);
- case 32: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 24) & 0xff), crc);
- case 40: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 16) & 0xff), crc);
- case 48: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 8) & 0xff), crc);
- case 56: br->read_crc16 = FLAC__CRC16_UPDATE((unsigned)(word & 0xff), crc);
- }
-#else
- for( ; br->crc16_align < FLAC__BITS_PER_WORD; br->crc16_align += 8)
- crc = FLAC__CRC16_UPDATE((unsigned)((word >> (FLAC__BITS_PER_WORD-8-br->crc16_align)) & 0xff), crc);
- br->read_crc16 = crc;
-#endif
- br->crc16_align = 0;
-}
-
-/* would be static except it needs to be called by asm routines */
-FLAC__bool bitreader_read_from_client_(FLAC__BitReader *br)
-{
- unsigned start, end;
- size_t bytes;
- FLAC__byte *target;
-
- /* first shift the unconsumed buffer data toward the front as much as possible */
- if(br->consumed_words > 0) {
- start = br->consumed_words;
- end = br->words + (br->bytes? 1:0);
- memmove(br->buffer, br->buffer+start, FLAC__BYTES_PER_WORD * (end - start));
-
- br->words -= start;
- br->consumed_words = 0;
- }
-
- /*
- * set the target for reading, taking into account word alignment and endianness
- */
- bytes = (br->capacity - br->words) * FLAC__BYTES_PER_WORD - br->bytes;
- if(bytes == 0)
- return false; /* no space left, buffer is too small; see note for FLAC__BITREADER_DEFAULT_CAPACITY */
- target = ((FLAC__byte*)(br->buffer+br->words)) + br->bytes;
-
- /* before reading, if the existing reader looks like this (say brword is 32 bits wide)
- * bitstream : 11 22 33 44 55 br->words=1 br->bytes=1 (partial tail word is left-justified)
- * buffer[BE]: 11 22 33 44 55 ?? ?? ?? (shown layed out as bytes sequentially in memory)
- * buffer[LE]: 44 33 22 11 ?? ?? ?? 55 (?? being don't-care)
- * ^^-------target, bytes=3
- * on LE machines, have to byteswap the odd tail word so nothing is
- * overwritten:
- */
-#if WORDS_BIGENDIAN
-#else
- if(br->bytes)
- br->buffer[br->words] = SWAP_BE_WORD_TO_HOST(br->buffer[br->words]);
-#endif
-
- /* now it looks like:
- * bitstream : 11 22 33 44 55 br->words=1 br->bytes=1
- * buffer[BE]: 11 22 33 44 55 ?? ?? ??
- * buffer[LE]: 44 33 22 11 55 ?? ?? ??
- * ^^-------target, bytes=3
- */
-
- /* read in the data; note that the callback may return a smaller number of bytes */
- if(!br->read_callback(target, &bytes, br->client_data))
- return false;
-
- /* after reading bytes 66 77 88 99 AA BB CC DD EE FF from the client:
- * bitstream : 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
- * buffer[BE]: 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF ??
- * buffer[LE]: 44 33 22 11 55 66 77 88 99 AA BB CC DD EE FF ??
- * now have to byteswap on LE machines:
- */
-#if WORDS_BIGENDIAN
-#else
- end = (br->words*FLAC__BYTES_PER_WORD + br->bytes + bytes + (FLAC__BYTES_PER_WORD-1)) / FLAC__BYTES_PER_WORD;
-# if defined(_MSC_VER) && (FLAC__BYTES_PER_WORD == 4) && defined(_M_IX86)
- if(br->cpu_info.type == FLAC__CPUINFO_TYPE_IA32 && br->cpu_info.data.ia32.bswap) {
- start = br->words;
- local_swap32_block_(br->buffer + start, end - start);
- }
- else
-# endif
- for(start = br->words; start < end; start++)
- br->buffer[start] = SWAP_BE_WORD_TO_HOST(br->buffer[start]);
-#endif
-
- /* now it looks like:
- * bitstream : 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
- * buffer[BE]: 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF ??
- * buffer[LE]: 44 33 22 11 88 77 66 55 CC BB AA 99 ?? FF EE DD
- * finally we'll update the reader values:
- */
- end = br->words*FLAC__BYTES_PER_WORD + br->bytes + bytes;
- br->words = end / FLAC__BYTES_PER_WORD;
- br->bytes = end % FLAC__BYTES_PER_WORD;
-
- return true;
-}
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-FLAC__BitReader *FLAC__bitreader_new(void)
-{
- FLAC__BitReader *br = (FLAC__BitReader*)calloc(1, sizeof(FLAC__BitReader));
-
- /* calloc() implies:
- memset(br, 0, sizeof(FLAC__BitReader));
- br->buffer = 0;
- br->capacity = 0;
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- br->read_callback = 0;
- br->client_data = 0;
- */
- return br;
-}
-
-void FLAC__bitreader_delete(FLAC__BitReader *br)
-{
- FLAC__ASSERT(0 != br);
-
- FLAC__bitreader_free(br);
- free(br);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__CPUInfo cpu, FLAC__BitReaderReadCallback rcb, void *cd)
-{
- FLAC__ASSERT(0 != br);
-
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- br->capacity = FLAC__BITREADER_DEFAULT_CAPACITY;
- br->buffer = (brword*)malloc(sizeof(brword) * br->capacity);
- if(br->buffer == 0)
- return false;
- br->read_callback = rcb;
- br->client_data = cd;
- br->cpu_info = cpu;
-
- return true;
-}
-
-void FLAC__bitreader_free(FLAC__BitReader *br)
-{
- FLAC__ASSERT(0 != br);
-
- if(0 != br->buffer)
- free(br->buffer);
- br->buffer = 0;
- br->capacity = 0;
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- br->read_callback = 0;
- br->client_data = 0;
-}
-
-FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br)
-{
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- return true;
-}
-
-void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out)
-{
- unsigned i, j;
- if(br == 0) {
- fprintf(out, "bitreader is NULL\n");
- }
- else {
- fprintf(out, "bitreader: capacity=%u words=%u bytes=%u consumed: words=%u, bits=%u\n", br->capacity, br->words, br->bytes, br->consumed_words, br->consumed_bits);
-
- for(i = 0; i < br->words; i++) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < FLAC__BITS_PER_WORD; j++)
- if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits))
- fprintf(out, ".");
- else
- fprintf(out, "%01u", br->buffer[i] & (1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- if(br->bytes > 0) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < br->bytes*8; j++)
- if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits))
- fprintf(out, ".");
- else
- fprintf(out, "%01u", br->buffer[i] & (1 << (br->bytes*8-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- }
-}
-
-void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed)
-{
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT((br->consumed_bits & 7) == 0);
-
- br->read_crc16 = (unsigned)seed;
- br->crc16_align = br->consumed_bits;
-}
-
-FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br)
-{
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT((br->consumed_bits & 7) == 0);
- FLAC__ASSERT(br->crc16_align <= br->consumed_bits);
-
- /* CRC any tail bytes in a partially-consumed word */
- if(br->consumed_bits) {
- const brword tail = br->buffer[br->consumed_words];
- for( ; br->crc16_align < br->consumed_bits; br->crc16_align += 8)
- br->read_crc16 = FLAC__CRC16_UPDATE((unsigned)((tail >> (FLAC__BITS_PER_WORD-8-br->crc16_align)) & 0xff), br->read_crc16);
- }
- return br->read_crc16;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br)
-{
- return ((br->consumed_bits & 7) == 0);
-}
-
-FLaC__INLINE unsigned FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br)
-{
- return 8 - (br->consumed_bits & 7);
-}
-
-FLaC__INLINE unsigned FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br)
-{
- return (br->words-br->consumed_words)*FLAC__BITS_PER_WORD + br->bytes*8 - br->consumed_bits;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, unsigned bits)
-{
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- FLAC__ASSERT(bits <= 32);
- FLAC__ASSERT((br->capacity*FLAC__BITS_PER_WORD) * 2 >= bits);
- FLAC__ASSERT(br->consumed_words <= br->words);
-
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
-
- if(bits == 0) { /* OPT: investigate if this can ever happen, maybe change to assertion */
- *val = 0;
- return true;
- }
-
- while((br->words-br->consumed_words)*FLAC__BITS_PER_WORD + br->bytes*8 - br->consumed_bits < bits) {
- if(!bitreader_read_from_client_(br))
- return false;
- }
- if(br->consumed_words < br->words) { /* if we've not consumed up to a partial tail word... */
- /* OPT: taking out the consumed_bits==0 "else" case below might make things faster if less code allows the compiler to inline this function */
- if(br->consumed_bits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- const unsigned n = FLAC__BITS_PER_WORD - br->consumed_bits;
- const brword word = br->buffer[br->consumed_words];
- if(bits < n) {
- *val = (word & (FLAC__WORD_ALL_ONES >> br->consumed_bits)) >> (n-bits);
- br->consumed_bits += bits;
- return true;
- }
- *val = word & (FLAC__WORD_ALL_ONES >> br->consumed_bits);
- bits -= n;
- crc16_update_word_(br, word);
- br->consumed_words++;
- br->consumed_bits = 0;
- if(bits) { /* if there are still bits left to read, there have to be less than 32 so they will all be in the next word */
- *val <<= bits;
- *val |= (br->buffer[br->consumed_words] >> (FLAC__BITS_PER_WORD-bits));
- br->consumed_bits = bits;
- }
- return true;
- }
- else {
- const brword word = br->buffer[br->consumed_words];
- if(bits < FLAC__BITS_PER_WORD) {
- *val = word >> (FLAC__BITS_PER_WORD-bits);
- br->consumed_bits = bits;
- return true;
- }
- /* at this point 'bits' must be == FLAC__BITS_PER_WORD; because of previous assertions, it can't be larger */
- *val = word;
- crc16_update_word_(br, word);
- br->consumed_words++;
- return true;
- }
- }
- else {
- /* in this case we're starting our read at a partial tail word;
- * the reader has guaranteed that we have at least 'bits' bits
- * available to read, which makes this case simpler.
- */
- /* OPT: taking out the consumed_bits==0 "else" case below might make things faster if less code allows the compiler to inline this function */
- if(br->consumed_bits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- FLAC__ASSERT(br->consumed_bits + bits <= br->bytes*8);
- *val = (br->buffer[br->consumed_words] & (FLAC__WORD_ALL_ONES >> br->consumed_bits)) >> (FLAC__BITS_PER_WORD-br->consumed_bits-bits);
- br->consumed_bits += bits;
- return true;
- }
- else {
- *val = br->buffer[br->consumed_words] >> (FLAC__BITS_PER_WORD-bits);
- br->consumed_bits += bits;
- return true;
- }
- }
-}
-
-FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, unsigned bits)
-{
- /* OPT: inline raw uint32 code here, or make into a macro if possible in the .h file */
- if(!FLAC__bitreader_read_raw_uint32(br, (FLAC__uint32*)val, bits))
- return false;
- /* sign-extend: */
- *val <<= (32-bits);
- *val >>= (32-bits);
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, unsigned bits)
-{
- FLAC__uint32 hi, lo;
-
- if(bits > 32) {
- if(!FLAC__bitreader_read_raw_uint32(br, &hi, bits-32))
- return false;
- if(!FLAC__bitreader_read_raw_uint32(br, &lo, 32))
- return false;
- *val = hi;
- *val <<= 32;
- *val |= lo;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(br, &lo, bits))
- return false;
- *val = lo;
- }
- return true;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val)
-{
- FLAC__uint32 x8, x32 = 0;
-
- /* this doesn't need to be that fast as currently it is only used for vorbis comments */
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x32, 8))
- return false;
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
- return false;
- x32 |= (x8 << 8);
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
- return false;
- x32 |= (x8 << 16);
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
- return false;
- x32 |= (x8 << 24);
-
- *val = x32;
- return true;
-}
-
-FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, unsigned bits)
-{
- /*
- * OPT: a faster implementation is possible but probably not that useful
- * since this is only called a couple of times in the metadata readers.
- */
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- if(bits > 0) {
- const unsigned n = br->consumed_bits & 7;
- unsigned m;
- FLAC__uint32 x;
-
- if(n != 0) {
- m = min(8-n, bits);
- if(!FLAC__bitreader_read_raw_uint32(br, &x, m))
- return false;
- bits -= m;
- }
- m = bits / 8;
- if(m > 0) {
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(br, m))
- return false;
- bits %= 8;
- }
- if(bits > 0) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, bits))
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, unsigned nvals)
-{
- FLAC__uint32 x;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(br));
-
- /* step 1: skip over partial head word to get word aligned */
- while(nvals && br->consumed_bits) { /* i.e. run until we read 'nvals' bytes or we hit the end of the head word */
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- nvals--;
- }
- if(0 == nvals)
- return true;
- /* step 2: skip whole words in chunks */
- while(nvals >= FLAC__BYTES_PER_WORD) {
- if(br->consumed_words < br->words) {
- br->consumed_words++;
- nvals -= FLAC__BYTES_PER_WORD;
- }
- else if(!bitreader_read_from_client_(br))
- return false;
- }
- /* step 3: skip any remainder from partial tail bytes */
- while(nvals) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- nvals--;
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, unsigned nvals)
-{
- FLAC__uint32 x;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(br));
-
- /* step 1: read from partial head word to get word aligned */
- while(nvals && br->consumed_bits) { /* i.e. run until we read 'nvals' bytes or we hit the end of the head word */
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- *val++ = (FLAC__byte)x;
- nvals--;
- }
- if(0 == nvals)
- return true;
- /* step 2: read whole words in chunks */
- while(nvals >= FLAC__BYTES_PER_WORD) {
- if(br->consumed_words < br->words) {
- const brword word = br->buffer[br->consumed_words++];
-#if FLAC__BYTES_PER_WORD == 4
- val[0] = (FLAC__byte)(word >> 24);
- val[1] = (FLAC__byte)(word >> 16);
- val[2] = (FLAC__byte)(word >> 8);
- val[3] = (FLAC__byte)word;
-#elif FLAC__BYTES_PER_WORD == 8
- val[0] = (FLAC__byte)(word >> 56);
- val[1] = (FLAC__byte)(word >> 48);
- val[2] = (FLAC__byte)(word >> 40);
- val[3] = (FLAC__byte)(word >> 32);
- val[4] = (FLAC__byte)(word >> 24);
- val[5] = (FLAC__byte)(word >> 16);
- val[6] = (FLAC__byte)(word >> 8);
- val[7] = (FLAC__byte)word;
-#else
- for(x = 0; x < FLAC__BYTES_PER_WORD; x++)
- val[x] = (FLAC__byte)(word >> (8*(FLAC__BYTES_PER_WORD-x-1)));
-#endif
- val += FLAC__BYTES_PER_WORD;
- nvals -= FLAC__BYTES_PER_WORD;
- }
- else if(!bitreader_read_from_client_(br))
- return false;
- }
- /* step 3: read any remainder from partial tail bytes */
- while(nvals) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- *val++ = (FLAC__byte)x;
- nvals--;
- }
-
- return true;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, unsigned *val)
-#if 0 /* slow but readable version */
-{
- unsigned bit;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- *val = 0;
- while(1) {
- if(!FLAC__bitreader_read_bit(br, &bit))
- return false;
- if(bit)
- break;
- else
- *val++;
- }
- return true;
-}
-#else
-{
- unsigned i;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- *val = 0;
- while(1) {
- while(br->consumed_words < br->words) { /* if we've not consumed up to a partial tail word... */
- brword b = br->buffer[br->consumed_words] << br->consumed_bits;
- if(b) {
- i = COUNT_ZERO_MSBS(b);
- *val += i;
- i++;
- br->consumed_bits += i;
- if(br->consumed_bits >= FLAC__BITS_PER_WORD) { /* faster way of testing if(br->consumed_bits == FLAC__BITS_PER_WORD) */
- crc16_update_word_(br, br->buffer[br->consumed_words]);
- br->consumed_words++;
- br->consumed_bits = 0;
- }
- return true;
- }
- else {
- *val += FLAC__BITS_PER_WORD - br->consumed_bits;
- crc16_update_word_(br, br->buffer[br->consumed_words]);
- br->consumed_words++;
- br->consumed_bits = 0;
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- /* at this point we've eaten up all the whole words; have to try
- * reading through any tail bytes before calling the read callback.
- * this is a repeat of the above logic adjusted for the fact we
- * don't have a whole word. note though if the client is feeding
- * us data a byte at a time (unlikely), br->consumed_bits may not
- * be zero.
- */
- if(br->bytes) {
- const unsigned end = br->bytes * 8;
- brword b = (br->buffer[br->consumed_words] & (FLAC__WORD_ALL_ONES << (FLAC__BITS_PER_WORD-end))) << br->consumed_bits;
- if(b) {
- i = COUNT_ZERO_MSBS(b);
- *val += i;
- i++;
- br->consumed_bits += i;
- FLAC__ASSERT(br->consumed_bits < FLAC__BITS_PER_WORD);
- return true;
- }
- else {
- *val += end - br->consumed_bits;
- br->consumed_bits += end;
- FLAC__ASSERT(br->consumed_bits < FLAC__BITS_PER_WORD);
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- if(!bitreader_read_from_client_(br))
- return false;
- }
-}
-#endif
-
-FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, unsigned parameter)
-{
- FLAC__uint32 lsbs = 0, msbs = 0;
- unsigned uval;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT(parameter <= 31);
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, parameter))
- return false;
-
- /* compose the value */
- uval = (msbs << parameter) | lsbs;
- if(uval & 1)
- *val = -((int)(uval >> 1)) - 1;
- else
- *val = (int)(uval >> 1);
-
- return true;
-}
-
-/* this is by far the most heavily used reader call. it ain't pretty but it's fast */
-/* a lot of the logic is copied, then adapted, from FLAC__bitreader_read_unary_unsigned() and FLAC__bitreader_read_raw_uint32() */
-FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter)
-/* OPT: possibly faster version for use with MSVC */
-#ifdef _MSC_VER
-{
- unsigned i;
- unsigned uval = 0;
- unsigned bits; /* the # of binary LSBs left to read to finish a rice codeword */
-
- /* try and get br->consumed_words and br->consumed_bits into register;
- * must remember to flush them back to *br before calling other
- * bitwriter functions that use them, and before returning */
- register unsigned cwords;
- register unsigned cbits;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
- FLAC__ASSERT(parameter < 32);
- /* the above two asserts also guarantee that the binary part never straddles more that 2 words, so we don't have to loop to read it */
-
- if(nvals == 0)
- return true;
-
- cbits = br->consumed_bits;
- cwords = br->consumed_words;
-
- while(1) {
- /* read unary part */
- while(1) {
- while(cwords < br->words) { /* if we've not consumed up to a partial tail word... */
- brword b = br->buffer[cwords] << cbits;
- if(b) {
-#if 0 /* slower, probably due to bad register allocation... */ && defined FLAC__CPU_IA32 && !defined FLAC__NO_ASM && FLAC__BITS_PER_WORD == 32
- __asm {
- bsr eax, b
- not eax
- and eax, 31
- mov i, eax
- }
-#else
- i = COUNT_ZERO_MSBS(b);
-#endif
- uval += i;
- bits = parameter;
- i++;
- cbits += i;
- if(cbits == FLAC__BITS_PER_WORD) {
- crc16_update_word_(br, br->buffer[cwords]);
- cwords++;
- cbits = 0;
- }
- goto break1;
- }
- else {
- uval += FLAC__BITS_PER_WORD - cbits;
- crc16_update_word_(br, br->buffer[cwords]);
- cwords++;
- cbits = 0;
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- /* at this point we've eaten up all the whole words; have to try
- * reading through any tail bytes before calling the read callback.
- * this is a repeat of the above logic adjusted for the fact we
- * don't have a whole word. note though if the client is feeding
- * us data a byte at a time (unlikely), br->consumed_bits may not
- * be zero.
- */
- if(br->bytes) {
- const unsigned end = br->bytes * 8;
- brword b = (br->buffer[cwords] & (FLAC__WORD_ALL_ONES << (FLAC__BITS_PER_WORD-end))) << cbits;
- if(b) {
- i = COUNT_ZERO_MSBS(b);
- uval += i;
- bits = parameter;
- i++;
- cbits += i;
- FLAC__ASSERT(cbits < FLAC__BITS_PER_WORD);
- goto break1;
- }
- else {
- uval += end - cbits;
- cbits += end;
- FLAC__ASSERT(cbits < FLAC__BITS_PER_WORD);
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- /* flush registers and read; bitreader_read_from_client_() does
- * not touch br->consumed_bits at all but we still need to set
- * it in case it fails and we have to return false.
- */
- br->consumed_bits = cbits;
- br->consumed_words = cwords;
- if(!bitreader_read_from_client_(br))
- return false;
- cwords = br->consumed_words;
- }
-break1:
- /* read binary part */
- FLAC__ASSERT(cwords <= br->words);
-
- if(bits) {
- while((br->words-cwords)*FLAC__BITS_PER_WORD + br->bytes*8 - cbits < bits) {
- /* flush registers and read; bitreader_read_from_client_() does
- * not touch br->consumed_bits at all but we still need to set
- * it in case it fails and we have to return false.
- */
- br->consumed_bits = cbits;
- br->consumed_words = cwords;
- if(!bitreader_read_from_client_(br))
- return false;
- cwords = br->consumed_words;
- }
- if(cwords < br->words) { /* if we've not consumed up to a partial tail word... */
- if(cbits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- const unsigned n = FLAC__BITS_PER_WORD - cbits;
- const brword word = br->buffer[cwords];
- if(bits < n) {
- uval <<= bits;
- uval |= (word & (FLAC__WORD_ALL_ONES >> cbits)) >> (n-bits);
- cbits += bits;
- goto break2;
- }
- uval <<= n;
- uval |= word & (FLAC__WORD_ALL_ONES >> cbits);
- bits -= n;
- crc16_update_word_(br, word);
- cwords++;
- cbits = 0;
- if(bits) { /* if there are still bits left to read, there have to be less than 32 so they will all be in the next word */
- uval <<= bits;
- uval |= (br->buffer[cwords] >> (FLAC__BITS_PER_WORD-bits));
- cbits = bits;
- }
- goto break2;
- }
- else {
- FLAC__ASSERT(bits < FLAC__BITS_PER_WORD);
- uval <<= bits;
- uval |= br->buffer[cwords] >> (FLAC__BITS_PER_WORD-bits);
- cbits = bits;
- goto break2;
- }
- }
- else {
- /* in this case we're starting our read at a partial tail word;
- * the reader has guaranteed that we have at least 'bits' bits
- * available to read, which makes this case simpler.
- */
- uval <<= bits;
- if(cbits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- FLAC__ASSERT(cbits + bits <= br->bytes*8);
- uval |= (br->buffer[cwords] & (FLAC__WORD_ALL_ONES >> cbits)) >> (FLAC__BITS_PER_WORD-cbits-bits);
- cbits += bits;
- goto break2;
- }
- else {
- uval |= br->buffer[cwords] >> (FLAC__BITS_PER_WORD-bits);
- cbits += bits;
- goto break2;
- }
- }
- }
-break2:
- /* compose the value */
- *vals = (int)(uval >> 1 ^ -(int)(uval & 1));
-
- /* are we done? */
- --nvals;
- if(nvals == 0) {
- br->consumed_bits = cbits;
- br->consumed_words = cwords;
- return true;
- }
-
- uval = 0;
- ++vals;
-
- }
-}
-#else
-{
- unsigned i;
- unsigned uval = 0;
-
- /* try and get br->consumed_words and br->consumed_bits into register;
- * must remember to flush them back to *br before calling other
- * bitwriter functions that use them, and before returning */
- register unsigned cwords;
- register unsigned cbits;
- unsigned ucbits; /* keep track of the number of unconsumed bits in the buffer */
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
- FLAC__ASSERT(parameter < 32);
- /* the above two asserts also guarantee that the binary part never straddles more than 2 words, so we don't have to loop to read it */
-
- if(nvals == 0)
- return true;
-
- cbits = br->consumed_bits;
- cwords = br->consumed_words;
- ucbits = (br->words-cwords)*FLAC__BITS_PER_WORD + br->bytes*8 - cbits;
-
- while(1) {
- /* read unary part */
- while(1) {
- while(cwords < br->words) { /* if we've not consumed up to a partial tail word... */
- brword b = br->buffer[cwords] << cbits;
- if(b) {
-#if 0 /* is not discernably faster... */ && defined FLAC__CPU_IA32 && !defined FLAC__NO_ASM && FLAC__BITS_PER_WORD == 32 && defined __GNUC__
- asm volatile (
- "bsrl %1, %0;"
- "notl %0;"
- "andl $31, %0;"
- : "=r"(i)
- : "r"(b)
- );
-#else
- i = COUNT_ZERO_MSBS(b);
-#endif
- uval += i;
- cbits += i;
- cbits++; /* skip over stop bit */
- if(cbits >= FLAC__BITS_PER_WORD) { /* faster way of testing if(cbits == FLAC__BITS_PER_WORD) */
- crc16_update_word_(br, br->buffer[cwords]);
- cwords++;
- cbits = 0;
- }
- goto break1;
- }
- else {
- uval += FLAC__BITS_PER_WORD - cbits;
- crc16_update_word_(br, br->buffer[cwords]);
- cwords++;
- cbits = 0;
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- /* at this point we've eaten up all the whole words; have to try
- * reading through any tail bytes before calling the read callback.
- * this is a repeat of the above logic adjusted for the fact we
- * don't have a whole word. note though if the client is feeding
- * us data a byte at a time (unlikely), br->consumed_bits may not
- * be zero.
- */
- if(br->bytes) {
- const unsigned end = br->bytes * 8;
- brword b = (br->buffer[cwords] & ~(FLAC__WORD_ALL_ONES >> end)) << cbits;
- if(b) {
- i = COUNT_ZERO_MSBS(b);
- uval += i;
- cbits += i;
- cbits++; /* skip over stop bit */
- FLAC__ASSERT(cbits < FLAC__BITS_PER_WORD);
- goto break1;
- }
- else {
- uval += end - cbits;
- cbits += end;
- FLAC__ASSERT(cbits < FLAC__BITS_PER_WORD);
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- /* flush registers and read; bitreader_read_from_client_() does
- * not touch br->consumed_bits at all but we still need to set
- * it in case it fails and we have to return false.
- */
- br->consumed_bits = cbits;
- br->consumed_words = cwords;
- if(!bitreader_read_from_client_(br))
- return false;
- cwords = br->consumed_words;
- ucbits = (br->words-cwords)*FLAC__BITS_PER_WORD + br->bytes*8 - cbits + uval;
- /* + uval to offset our count by the # of unary bits already
- * consumed before the read, because we will add these back
- * in all at once at break1
- */
- }
-break1:
- ucbits -= uval;
- ucbits--; /* account for stop bit */
-
- /* read binary part */
- FLAC__ASSERT(cwords <= br->words);
-
- if(parameter) {
- while(ucbits < parameter) {
- /* flush registers and read; bitreader_read_from_client_() does
- * not touch br->consumed_bits at all but we still need to set
- * it in case it fails and we have to return false.
- */
- br->consumed_bits = cbits;
- br->consumed_words = cwords;
- if(!bitreader_read_from_client_(br))
- return false;
- cwords = br->consumed_words;
- ucbits = (br->words-cwords)*FLAC__BITS_PER_WORD + br->bytes*8 - cbits;
- }
- if(cwords < br->words) { /* if we've not consumed up to a partial tail word... */
- if(cbits) {
- /* this also works when consumed_bits==0, it's just slower than necessary for that case */
- const unsigned n = FLAC__BITS_PER_WORD - cbits;
- const brword word = br->buffer[cwords];
- if(parameter < n) {
- uval <<= parameter;
- uval |= (word & (FLAC__WORD_ALL_ONES >> cbits)) >> (n-parameter);
- cbits += parameter;
- }
- else {
- uval <<= n;
- uval |= word & (FLAC__WORD_ALL_ONES >> cbits);
- crc16_update_word_(br, word);
- cwords++;
- cbits = parameter - n;
- if(cbits) { /* parameter > n, i.e. if there are still bits left to read, there have to be less than 32 so they will all be in the next word */
- uval <<= cbits;
- uval |= (br->buffer[cwords] >> (FLAC__BITS_PER_WORD-cbits));
- }
- }
- }
- else {
- cbits = parameter;
- uval <<= parameter;
- uval |= br->buffer[cwords] >> (FLAC__BITS_PER_WORD-cbits);
- }
- }
- else {
- /* in this case we're starting our read at a partial tail word;
- * the reader has guaranteed that we have at least 'parameter'
- * bits available to read, which makes this case simpler.
- */
- uval <<= parameter;
- if(cbits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- FLAC__ASSERT(cbits + parameter <= br->bytes*8);
- uval |= (br->buffer[cwords] & (FLAC__WORD_ALL_ONES >> cbits)) >> (FLAC__BITS_PER_WORD-cbits-parameter);
- cbits += parameter;
- }
- else {
- cbits = parameter;
- uval |= br->buffer[cwords] >> (FLAC__BITS_PER_WORD-cbits);
- }
- }
- }
-
- ucbits -= parameter;
-
- /* compose the value */
- *vals = (int)(uval >> 1 ^ -(int)(uval & 1));
-
- /* are we done? */
- --nvals;
- if(nvals == 0) {
- br->consumed_bits = cbits;
- br->consumed_words = cwords;
- return true;
- }
-
- uval = 0;
- ++vals;
-
- }
-}
-#endif
-
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, unsigned parameter)
-{
- FLAC__uint32 lsbs = 0, msbs = 0;
- unsigned bit, uval, k;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- k = FLAC__bitmath_ilog2(parameter);
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, k))
- return false;
-
- if(parameter == 1u<<k) {
- /* compose the value */
- uval = (msbs << k) | lsbs;
- }
- else {
- unsigned d = (1 << (k+1)) - parameter;
- if(lsbs >= d) {
- if(!FLAC__bitreader_read_bit(br, &bit))
- return false;
- lsbs <<= 1;
- lsbs |= bit;
- lsbs -= d;
- }
- /* compose the value */
- uval = msbs * parameter + lsbs;
- }
-
- /* unfold unsigned to signed */
- if(uval & 1)
- *val = -((int)(uval >> 1)) - 1;
- else
- *val = (int)(uval >> 1);
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, unsigned *val, unsigned parameter)
-{
- FLAC__uint32 lsbs, msbs = 0;
- unsigned bit, k;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- k = FLAC__bitmath_ilog2(parameter);
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, k))
- return false;
-
- if(parameter == 1u<<k) {
- /* compose the value */
- *val = (msbs << k) | lsbs;
- }
- else {
- unsigned d = (1 << (k+1)) - parameter;
- if(lsbs >= d) {
- if(!FLAC__bitreader_read_bit(br, &bit))
- return false;
- lsbs <<= 1;
- lsbs |= bit;
- lsbs -= d;
- }
- /* compose the value */
- *val = msbs * parameter + lsbs;
- }
-
- return true;
-}
-#endif /* UNUSED */
-
-/* on return, if *val == 0xffffffff then the utf-8 sequence was invalid, but the return value will be true */
-FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, unsigned *rawlen)
-{
- FLAC__uint32 v = 0;
- FLAC__uint32 x;
- unsigned i;
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80)) { /* 0xxxxxxx */
- v = x;
- i = 0;
- }
- else if(x & 0xC0 && !(x & 0x20)) { /* 110xxxxx */
- v = x & 0x1F;
- i = 1;
- }
- else if(x & 0xE0 && !(x & 0x10)) { /* 1110xxxx */
- v = x & 0x0F;
- i = 2;
- }
- else if(x & 0xF0 && !(x & 0x08)) { /* 11110xxx */
- v = x & 0x07;
- i = 3;
- }
- else if(x & 0xF8 && !(x & 0x04)) { /* 111110xx */
- v = x & 0x03;
- i = 4;
- }
- else if(x & 0xFC && !(x & 0x02)) { /* 1111110x */
- v = x & 0x01;
- i = 5;
- }
- else {
- *val = 0xffffffff;
- return true;
- }
- for( ; i; i--) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80) || (x & 0x40)) { /* 10xxxxxx */
- *val = 0xffffffff;
- return true;
- }
- v <<= 6;
- v |= (x & 0x3F);
- }
- *val = v;
- return true;
-}
-
-/* on return, if *val == 0xffffffffffffffff then the utf-8 sequence was invalid, but the return value will be true */
-FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, unsigned *rawlen)
-{
- FLAC__uint64 v = 0;
- FLAC__uint32 x;
- unsigned i;
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80)) { /* 0xxxxxxx */
- v = x;
- i = 0;
- }
- else if(x & 0xC0 && !(x & 0x20)) { /* 110xxxxx */
- v = x & 0x1F;
- i = 1;
- }
- else if(x & 0xE0 && !(x & 0x10)) { /* 1110xxxx */
- v = x & 0x0F;
- i = 2;
- }
- else if(x & 0xF0 && !(x & 0x08)) { /* 11110xxx */
- v = x & 0x07;
- i = 3;
- }
- else if(x & 0xF8 && !(x & 0x04)) { /* 111110xx */
- v = x & 0x03;
- i = 4;
- }
- else if(x & 0xFC && !(x & 0x02)) { /* 1111110x */
- v = x & 0x01;
- i = 5;
- }
- else if(x & 0xFE && !(x & 0x01)) { /* 11111110 */
- v = 0;
- i = 6;
- }
- else {
- *val = FLAC__U64L(0xffffffffffffffff);
- return true;
- }
- for( ; i; i--) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80) || (x & 0x40)) { /* 10xxxxxx */
- *val = FLAC__U64L(0xffffffffffffffff);
- return true;
- }
- v <<= 6;
- v |= (x & 0x3F);
- }
- *val = v;
- return true;
-}
diff --git a/src/lib/libflac/libFLAC/bitwriter.c b/src/lib/libflac/libFLAC/bitwriter.c
deleted file mode 100644
index 089ff872b59..00000000000
--- a/src/lib/libflac/libFLAC/bitwriter.c
+++ /dev/null
@@ -1,889 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcpy(), memset() */
-#ifdef _MSC_VER
-#include <winsock.h> /* for ntohl() */
-#elif defined FLAC__SYS_DARWIN
-#include <machine/endian.h> /* for ntohl() */
-#elif defined __MINGW32__
-#include <winsock.h> /* for ntohl() */
-#else
-#include <netinet/in.h> /* for ntohl() */
-#endif
-#if 0 /* UNUSED */
-#include "private/bitmath.h"
-#endif
-#include "private/bitwriter.h"
-#include "private/crc.h"
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-
-/* Things should be fastest when this matches the machine word size */
-/* WATCHOUT: if you change this you must also change the following #defines down to SWAP_BE_WORD_TO_HOST below to match */
-/* WATCHOUT: there are a few places where the code will not work unless bwword is >= 32 bits wide */
-typedef FLAC__uint32 bwword;
-#define FLAC__BYTES_PER_WORD 4
-#define FLAC__BITS_PER_WORD 32
-#define FLAC__WORD_ALL_ONES ((FLAC__uint32)0xffffffff)
-/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
-#if WORDS_BIGENDIAN
-#define SWAP_BE_WORD_TO_HOST(x) (x)
-#else
-#ifdef _MSC_VER
-#define SWAP_BE_WORD_TO_HOST(x) local_swap32_(x)
-#else
-#define SWAP_BE_WORD_TO_HOST(x) ntohl(x)
-#endif
-#endif
-
-/*
- * The default capacity here doesn't matter too much. The buffer always grows
- * to hold whatever is written to it. Usually the encoder will stop adding at
- * a frame or metadata block, then write that out and clear the buffer for the
- * next one.
- */
-static const unsigned FLAC__BITWRITER_DEFAULT_CAPACITY = 32768u / sizeof(bwword); /* size in words */
-/* When growing, increment 4K at a time */
-static const unsigned FLAC__BITWRITER_DEFAULT_INCREMENT = 4096u / sizeof(bwword); /* size in words */
-
-#define FLAC__WORDS_TO_BITS(words) ((words) * FLAC__BITS_PER_WORD)
-#define FLAC__TOTAL_BITS(bw) (FLAC__WORDS_TO_BITS((bw)->words) + (bw)->bits)
-
-#ifdef min
-#undef min
-#endif
-#define min(x,y) ((x)<(y)?(x):(y))
-
-/* adjust for compilers that can't understand using LLU suffix for uint64_t literals */
-#ifdef _MSC_VER
-#define FLAC__U64L(x) x
-#else
-#define FLAC__U64L(x) x##LLU
-#endif
-
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
-struct FLAC__BitWriter {
- bwword *buffer;
- bwword accum; /* accumulator; bits are right-justified; when full, accum is appended to buffer */
- unsigned capacity; /* capacity of buffer in words */
- unsigned words; /* # of complete words in buffer */
- unsigned bits; /* # of used bits in accum */
-};
-
-#ifdef _MSC_VER
-/* OPT: an MSVC built-in would be better */
-static _inline FLAC__uint32 local_swap32_(FLAC__uint32 x)
-{
- x = ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
- return (x>>16) | (x<<16);
-}
-#endif
-
-/* * WATCHOUT: The current implementation only grows the buffer. */
-static FLAC__bool bitwriter_grow_(FLAC__BitWriter *bw, unsigned bits_to_add)
-{
- unsigned new_capacity;
- bwword *new_buffer;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- /* calculate total words needed to store 'bits_to_add' additional bits */
- new_capacity = bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD);
-
- /* it's possible (due to pessimism in the growth estimation that
- * leads to this call) that we don't actually need to grow
- */
- if(bw->capacity >= new_capacity)
- return true;
-
- /* round up capacity increase to the nearest FLAC__BITWRITER_DEFAULT_INCREMENT */
- if((new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT)
- new_capacity += FLAC__BITWRITER_DEFAULT_INCREMENT - ((new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT);
- /* make sure we got everything right */
- FLAC__ASSERT(0 == (new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT);
- FLAC__ASSERT(new_capacity > bw->capacity);
- FLAC__ASSERT(new_capacity >= bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD));
-
- new_buffer = (bwword*)safe_realloc_mul_2op_(bw->buffer, sizeof(bwword), /*times*/new_capacity);
- if(new_buffer == 0)
- return false;
- bw->buffer = new_buffer;
- bw->capacity = new_capacity;
- return true;
-}
-
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-FLAC__BitWriter *FLAC__bitwriter_new(void)
-{
- FLAC__BitWriter *bw = (FLAC__BitWriter*)calloc(1, sizeof(FLAC__BitWriter));
- /* note that calloc() sets all members to 0 for us */
- return bw;
-}
-
-void FLAC__bitwriter_delete(FLAC__BitWriter *bw)
-{
- FLAC__ASSERT(0 != bw);
-
- FLAC__bitwriter_free(bw);
- free(bw);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw)
-{
- FLAC__ASSERT(0 != bw);
-
- bw->words = bw->bits = 0;
- bw->capacity = FLAC__BITWRITER_DEFAULT_CAPACITY;
- bw->buffer = (bwword*)malloc(sizeof(bwword) * bw->capacity);
- if(bw->buffer == 0)
- return false;
-
- return true;
-}
-
-void FLAC__bitwriter_free(FLAC__BitWriter *bw)
-{
- FLAC__ASSERT(0 != bw);
-
- if(0 != bw->buffer)
- free(bw->buffer);
- bw->buffer = 0;
- bw->capacity = 0;
- bw->words = bw->bits = 0;
-}
-
-void FLAC__bitwriter_clear(FLAC__BitWriter *bw)
-{
- bw->words = bw->bits = 0;
-}
-
-void FLAC__bitwriter_dump(const FLAC__BitWriter *bw, FILE *out)
-{
- unsigned i, j;
- if(bw == 0) {
- fprintf(out, "bitwriter is NULL\n");
- }
- else {
- fprintf(out, "bitwriter: capacity=%u words=%u bits=%u total_bits=%u\n", bw->capacity, bw->words, bw->bits, FLAC__TOTAL_BITS(bw));
-
- for(i = 0; i < bw->words; i++) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < FLAC__BITS_PER_WORD; j++)
- fprintf(out, "%01u", bw->buffer[i] & (1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- if(bw->bits > 0) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < bw->bits; j++)
- fprintf(out, "%01u", bw->accum & (1 << (bw->bits-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- }
-}
-
-FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc)
-{
- const FLAC__byte *buffer;
- size_t bytes;
-
- FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
-
- if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
- return false;
-
- *crc = (FLAC__uint16)FLAC__crc16(buffer, bytes);
- FLAC__bitwriter_release_buffer(bw);
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc)
-{
- const FLAC__byte *buffer;
- size_t bytes;
-
- FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
-
- if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
- return false;
-
- *crc = FLAC__crc8(buffer, bytes);
- FLAC__bitwriter_release_buffer(bw);
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw)
-{
- return ((bw->bits & 7) == 0);
-}
-
-unsigned FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw)
-{
- return FLAC__TOTAL_BITS(bw);
-}
-
-FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes)
-{
- FLAC__ASSERT((bw->bits & 7) == 0);
- /* double protection */
- if(bw->bits & 7)
- return false;
- /* if we have bits in the accumulator we have to flush those to the buffer first */
- if(bw->bits) {
- FLAC__ASSERT(bw->words <= bw->capacity);
- if(bw->words == bw->capacity && !bitwriter_grow_(bw, FLAC__BITS_PER_WORD))
- return false;
- /* append bits as complete word to buffer, but don't change bw->accum or bw->bits */
- bw->buffer[bw->words] = SWAP_BE_WORD_TO_HOST(bw->accum << (FLAC__BITS_PER_WORD-bw->bits));
- }
- /* now we can just return what we have */
- *buffer = (FLAC__byte*)bw->buffer;
- *bytes = (FLAC__BYTES_PER_WORD * bw->words) + (bw->bits >> 3);
- return true;
-}
-
-void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw)
-{
- /* nothing to do. in the future, strict checking of a 'writer-is-in-
- * get-mode' flag could be added everywhere and then cleared here
- */
- (void)bw;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, unsigned bits)
-{
- unsigned n;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- if(bits == 0)
- return true;
- /* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
- if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
- return false;
- /* first part gets to word alignment */
- if(bw->bits) {
- n = min(FLAC__BITS_PER_WORD - bw->bits, bits);
- bw->accum <<= n;
- bits -= n;
- bw->bits += n;
- if(bw->bits == FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->bits = 0;
- }
- else
- return true;
- }
- /* do whole words */
- while(bits >= FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = 0;
- bits -= FLAC__BITS_PER_WORD;
- }
- /* do any leftovers */
- if(bits > 0) {
- bw->accum = 0;
- bw->bits = bits;
- }
- return true;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, unsigned bits)
-{
- register unsigned left;
-
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- FLAC__ASSERT(bits <= 32);
- if(bits == 0)
- return true;
-
- /* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
- if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
- return false;
-
- left = FLAC__BITS_PER_WORD - bw->bits;
- if(bits < left) {
- bw->accum <<= bits;
- bw->accum |= val;
- bw->bits += bits;
- }
- else if(bw->bits) { /* WATCHOUT: if bw->bits == 0, left==FLAC__BITS_PER_WORD and bw->accum<<=left is a NOP instead of setting to 0 */
- bw->accum <<= left;
- bw->accum |= val >> (bw->bits = bits - left);
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->accum = val;
- }
- else {
- bw->accum = val;
- bw->bits = 0;
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(val);
- }
-
- return true;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, unsigned bits)
-{
- /* zero-out unused bits */
- if(bits < 32)
- val &= (~(0xffffffff << bits));
-
- return FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, bits);
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, unsigned bits)
-{
- /* this could be a little faster but it's not used for much */
- if(bits > 32) {
- return
- FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)(val>>32), bits-32) &&
- FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, 32);
- }
- else
- return FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, bits);
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val)
-{
- /* this doesn't need to be that fast as currently it is only used for vorbis comments */
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, val & 0xff, 8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, (val>>8) & 0xff, 8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, (val>>16) & 0xff, 8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, val>>24, 8))
- return false;
-
- return true;
-}
-
-FLaC__INLINE FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], unsigned nvals)
-{
- unsigned i;
-
- /* this could be faster but currently we don't need it to be since it's only used for writing metadata */
- for(i = 0; i < nvals; i++) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)(vals[i]), 8))
- return false;
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, unsigned val)
-{
- if(val < 32)
- return FLAC__bitwriter_write_raw_uint32(bw, 1, ++val);
- else
- return
- FLAC__bitwriter_write_zeroes(bw, val) &&
- FLAC__bitwriter_write_raw_uint32(bw, 1, 1);
-}
-
-unsigned FLAC__bitwriter_rice_bits(FLAC__int32 val, unsigned parameter)
-{
- FLAC__uint32 uval;
-
- FLAC__ASSERT(parameter < sizeof(unsigned)*8);
-
- /* fold signed to unsigned; actual formula is: negative(v)? -2v-1 : 2v */
- uval = (val<<1) ^ (val>>31);
-
- return 1 + parameter + (uval >> parameter);
-}
-
-#if 0 /* UNUSED */
-unsigned FLAC__bitwriter_golomb_bits_signed(int val, unsigned parameter)
-{
- unsigned bits, msbs, uval;
- unsigned k;
-
- FLAC__ASSERT(parameter > 0);
-
- /* fold signed to unsigned */
- if(val < 0)
- uval = (unsigned)(((-(++val)) << 1) + 1);
- else
- uval = (unsigned)(val << 1);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- bits = 1 + k + msbs;
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
-
- bits = 1 + q + k;
- if(r >= d)
- bits++;
- }
- return bits;
-}
-
-unsigned FLAC__bitwriter_golomb_bits_unsigned(unsigned uval, unsigned parameter)
-{
- unsigned bits, msbs;
- unsigned k;
-
- FLAC__ASSERT(parameter > 0);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- bits = 1 + k + msbs;
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
-
- bits = 1 + q + k;
- if(r >= d)
- bits++;
- }
- return bits;
-}
-#endif /* UNUSED */
-
-FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, unsigned parameter)
-{
- unsigned total_bits, interesting_bits, msbs;
- FLAC__uint32 uval, pattern;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter < 8*sizeof(uval));
-
- /* fold signed to unsigned; actual formula is: negative(v)? -2v-1 : 2v */
- uval = (val<<1) ^ (val>>31);
-
- msbs = uval >> parameter;
- interesting_bits = 1 + parameter;
- total_bits = interesting_bits + msbs;
- pattern = 1 << parameter; /* the unary end bit */
- pattern |= (uval & ((1<<parameter)-1)); /* the binary LSBs */
-
- if(total_bits <= 32)
- return FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits);
- else
- return
- FLAC__bitwriter_write_zeroes(bw, msbs) && /* write the unary MSBs */
- FLAC__bitwriter_write_raw_uint32(bw, pattern, interesting_bits); /* write the unary end bit and binary LSBs */
-}
-
-FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, unsigned nvals, unsigned parameter)
-{
- const FLAC__uint32 mask1 = FLAC__WORD_ALL_ONES << parameter; /* we val|=mask1 to set the stop bit above it... */
- const FLAC__uint32 mask2 = FLAC__WORD_ALL_ONES >> (31-parameter); /* ...then mask off the bits above the stop bit with val&=mask2*/
- FLAC__uint32 uval;
- unsigned left;
- const unsigned lsbits = 1 + parameter;
- unsigned msbits;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter < 8*sizeof(bwword)-1);
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
-
- while(nvals) {
- /* fold signed to unsigned; actual formula is: negative(v)? -2v-1 : 2v */
- uval = (*vals<<1) ^ (*vals>>31);
-
- msbits = uval >> parameter;
-
-#if 0 /* OPT: can remove this special case if it doesn't make up for the extra compare (doesn't make a statistically significant difference with msvc or gcc/x86) */
- if(bw->bits && bw->bits + msbits + lsbits <= FLAC__BITS_PER_WORD) { /* i.e. if the whole thing fits in the current bwword */
- /* ^^^ if bw->bits is 0 then we may have filled the buffer and have no free bwword to work in */
- bw->bits = bw->bits + msbits + lsbits;
- uval |= mask1; /* set stop bit */
- uval &= mask2; /* mask off unused top bits */
- /* NOT: bw->accum <<= msbits + lsbits because msbits+lsbits could be 32, then the shift would be a NOP */
- bw->accum <<= msbits;
- bw->accum <<= lsbits;
- bw->accum |= uval;
- if(bw->bits == FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->bits = 0;
- /* burying the capacity check down here means we have to grow the buffer a little if there are more vals to do */
- if(bw->capacity <= bw->words && nvals > 1 && !bitwriter_grow_(bw, 1)) {
- FLAC__ASSERT(bw->capacity == bw->words);
- return false;
- }
- }
- }
- else {
-#elif 1 /*@@@@@@ OPT: try this version with MSVC6 to see if better, not much difference for gcc-4 */
- if(bw->bits && bw->bits + msbits + lsbits < FLAC__BITS_PER_WORD) { /* i.e. if the whole thing fits in the current bwword */
- /* ^^^ if bw->bits is 0 then we may have filled the buffer and have no free bwword to work in */
- bw->bits = bw->bits + msbits + lsbits;
- uval |= mask1; /* set stop bit */
- uval &= mask2; /* mask off unused top bits */
- bw->accum <<= msbits + lsbits;
- bw->accum |= uval;
- }
- else {
-#endif
- /* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+msbits+lsbits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
- /* OPT: pessimism may cause flurry of false calls to grow_ which eat up all savings before it */
- if(bw->capacity <= bw->words + bw->bits + msbits + 1/*lsbits always fit in 1 bwword*/ && !bitwriter_grow_(bw, msbits+lsbits))
- return false;
-
- if(msbits) {
- /* first part gets to word alignment */
- if(bw->bits) {
- left = FLAC__BITS_PER_WORD - bw->bits;
- if(msbits < left) {
- bw->accum <<= msbits;
- bw->bits += msbits;
- goto break1;
- }
- else {
- bw->accum <<= left;
- msbits -= left;
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->bits = 0;
- }
- }
- /* do whole words */
- while(msbits >= FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = 0;
- msbits -= FLAC__BITS_PER_WORD;
- }
- /* do any leftovers */
- if(msbits > 0) {
- bw->accum = 0;
- bw->bits = msbits;
- }
- }
-break1:
- uval |= mask1; /* set stop bit */
- uval &= mask2; /* mask off unused top bits */
-
- left = FLAC__BITS_PER_WORD - bw->bits;
- if(lsbits < left) {
- bw->accum <<= lsbits;
- bw->accum |= uval;
- bw->bits += lsbits;
- }
- else {
- /* if bw->bits == 0, left==FLAC__BITS_PER_WORD which will always
- * be > lsbits (because of previous assertions) so it would have
- * triggered the (lsbits<left) case above.
- */
- FLAC__ASSERT(bw->bits);
- FLAC__ASSERT(left < FLAC__BITS_PER_WORD);
- bw->accum <<= left;
- bw->accum |= uval >> (bw->bits = lsbits - left);
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->accum = uval;
- }
-#if 1
- }
-#endif
- vals++;
- nvals--;
- }
- return true;
-}
-
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, unsigned parameter)
-{
- unsigned total_bits, msbs, uval;
- unsigned k;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter > 0);
-
- /* fold signed to unsigned */
- if(val < 0)
- uval = (unsigned)(((-(++val)) << 1) + 1);
- else
- uval = (unsigned)(val << 1);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- unsigned pattern;
-
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- total_bits = 1 + k + msbs;
- pattern = 1 << k; /* the unary end bit */
- pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
-
- if(total_bits <= 32) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
- return false;
- }
- else {
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, msbs))
- return false;
- /* write the unary end bit and binary LSBs */
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
- return false;
- }
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, q))
- return false;
- /* write the unary end bit */
- if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
- return false;
- /* write the binary LSBs */
- if(r >= d) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
- return false;
- }
- }
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, unsigned uval, unsigned parameter)
-{
- unsigned total_bits, msbs;
- unsigned k;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter > 0);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- unsigned pattern;
-
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- total_bits = 1 + k + msbs;
- pattern = 1 << k; /* the unary end bit */
- pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
-
- if(total_bits <= 32) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
- return false;
- }
- else {
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, msbs))
- return false;
- /* write the unary end bit and binary LSBs */
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
- return false;
- }
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, q))
- return false;
- /* write the unary end bit */
- if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
- return false;
- /* write the binary LSBs */
- if(r >= d) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
- return false;
- }
- }
- return true;
-}
-#endif /* UNUSED */
-
-FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val)
-{
- FLAC__bool ok = 1;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- FLAC__ASSERT(!(val & 0x80000000)); /* this version only handles 31 bits */
-
- if(val < 0x80) {
- return FLAC__bitwriter_write_raw_uint32(bw, val, 8);
- }
- else if(val < 0x800) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xC0 | (val>>6), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (val&0x3F), 8);
- }
- else if(val < 0x10000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xE0 | (val>>12), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (val&0x3F), 8);
- }
- else if(val < 0x200000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xF0 | (val>>18), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (val&0x3F), 8);
- }
- else if(val < 0x4000000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xF8 | (val>>24), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (val&0x3F), 8);
- }
- else {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xFC | (val>>30), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>24)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (val&0x3F), 8);
- }
-
- return ok;
-}
-
-FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val)
-{
- FLAC__bool ok = 1;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- FLAC__ASSERT(!(val & FLAC__U64L(0xFFFFFFF000000000))); /* this version only handles 36 bits */
-
- if(val < 0x80) {
- return FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, 8);
- }
- else if(val < 0x800) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xC0 | (FLAC__uint32)(val>>6), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x10000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xE0 | (FLAC__uint32)(val>>12), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x200000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xF0 | (FLAC__uint32)(val>>18), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x4000000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xF8 | (FLAC__uint32)(val>>24), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x80000000) {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xFC | (FLAC__uint32)(val>>30), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else {
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0xFE, 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>30)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
-
- return ok;
-}
-
-FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw)
-{
- /* 0-pad to byte boundary */
- if(bw->bits & 7u)
- return FLAC__bitwriter_write_zeroes(bw, 8 - (bw->bits & 7u));
- else
- return true;
-}
diff --git a/src/lib/libflac/libFLAC/cpu.c b/src/lib/libflac/libFLAC/cpu.c
deleted file mode 100644
index e5ea78ea37c..00000000000
--- a/src/lib/libflac/libFLAC/cpu.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-#include <stdlib.h>
-#include <stdio.h>
-
-#if defined FLAC__CPU_IA32
-# include <signal.h>
-#elif defined FLAC__CPU_PPC
-# if !defined FLAC__NO_ASM
-# if defined FLAC__SYS_DARWIN
-# include <sys/sysctl.h>
-# include <mach/mach.h>
-# include <mach/mach_host.h>
-# include <mach/host_info.h>
-# include <mach/machine.h>
-# ifndef CPU_SUBTYPE_POWERPC_970
-# define CPU_SUBTYPE_POWERPC_970 ((cpu_subtype_t) 100)
-# endif
-# else /* FLAC__SYS_DARWIN */
-
-# include <signal.h>
-# include <setjmp.h>
-
-static sigjmp_buf jmpbuf;
-static volatile sig_atomic_t canjump = 0;
-
-static void sigill_handler (int sig)
-{
- if (!canjump) {
- signal (sig, SIG_DFL);
- raise (sig);
- }
- canjump = 0;
- siglongjmp (jmpbuf, 1);
-}
-# endif /* FLAC__SYS_DARWIN */
-# endif /* FLAC__NO_ASM */
-#endif /* FLAC__CPU_PPC */
-
-#if defined (__NetBSD__) || defined(__OpenBSD__)
-#include <sys/param.h>
-#include <sys/sysctl.h>
-#include <machine/cpu.h>
-#endif
-
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
-#include <sys/types.h>
-#include <sys/sysctl.h>
-#endif
-
-#if defined(__APPLE__)
-/* how to get sysctlbyname()? */
-#endif
-
-#if defined(FLAC__CPU_IA32) && !defined(FLAC__NO_ASM) && defined (FLAC__HAS_NASM)
-/* these are flags in EDX of CPUID AX=00000001 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_CMOV = 0x00008000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_MMX = 0x00800000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_FXSR = 0x01000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE = 0x02000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE2 = 0x04000000;
-/* these are flags in ECX of CPUID AX=00000001 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE3 = 0x00000001;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSSE3 = 0x00000200;
-#ifdef FLAC__USE_3DNOW
-/* these are flags in EDX of CPUID AX=80000001 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_EXTENDED_AMD_3DNOW = 0x80000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_EXTENDED_AMD_EXT3DNOW = 0x40000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_EXTENDED_AMD_EXTMMX = 0x00400000;
-#endif
-#endif
-
-
-/*
- * Extra stuff needed for detection of OS support for SSE on IA-32
- */
-#if defined(FLAC__CPU_IA32) && !defined FLAC__NO_ASM && defined FLAC__HAS_NASM && !defined FLAC__NO_SSE_OS && !defined FLAC__SSE_OS
-# if defined(__linux__)
-/*
- * If the OS doesn't support SSE, we will get here with a SIGILL. We
- * modify the return address to jump over the offending SSE instruction
- * and also the operation following it that indicates the instruction
- * executed successfully. In this way we use no global variables and
- * stay thread-safe.
- *
- * 3 + 3 + 6:
- * 3 bytes for "xorps xmm0,xmm0"
- * 3 bytes for estimate of how long the follwing "inc var" instruction is
- * 6 bytes extra in case our estimate is wrong
- * 12 bytes puts us in the NOP "landing zone"
- */
-# undef USE_OBSOLETE_SIGCONTEXT_FLAVOR /* #define this to use the older signal handler method */
-# ifdef USE_OBSOLETE_SIGCONTEXT_FLAVOR
- static void sigill_handler_sse_os(int signal, struct sigcontext sc)
- {
- (void)signal;
- sc.eip += 3 + 3 + 6;
- }
-# else
-# include <sys/ucontext.h>
- static void sigill_handler_sse_os(int signal, siginfo_t *si, void *uc)
- {
- (void)signal, (void)si;
- ((ucontext_t*)uc)->uc_mcontext.gregs[14/*REG_EIP*/] += 3 + 3 + 6;
- }
-# endif
-# elif defined(_MSC_VER)
-# include <windows.h>
-# undef USE_TRY_CATCH_FLAVOR /* #define this to use the try/catch method for catching illegal opcode exception */
-# ifdef USE_TRY_CATCH_FLAVOR
-# else
- LONG CALLBACK sigill_handler_sse_os(EXCEPTION_POINTERS *ep)
- {
- if(ep->ExceptionRecord->ExceptionCode == EXCEPTION_ILLEGAL_INSTRUCTION) {
- ep->ContextRecord->Eip += 3 + 3 + 6;
- return EXCEPTION_CONTINUE_EXECUTION;
- }
- return EXCEPTION_CONTINUE_SEARCH;
- }
-# endif
-# endif
-#endif
-
-
-void FLAC__cpu_info(FLAC__CPUInfo *info)
-{
-/*
- * IA32-specific
- */
-#ifdef FLAC__CPU_IA32
- info->type = FLAC__CPUINFO_TYPE_IA32;
-#if !defined FLAC__NO_ASM && defined FLAC__HAS_NASM
- info->use_asm = true; /* we assume a minimum of 80386 with FLAC__CPU_IA32 */
- info->data.ia32.cpuid = FLAC__cpu_have_cpuid_asm_ia32()? true : false;
- info->data.ia32.bswap = info->data.ia32.cpuid; /* CPUID => BSWAP since it came after */
- info->data.ia32.cmov = false;
- info->data.ia32.mmx = false;
- info->data.ia32.fxsr = false;
- info->data.ia32.sse = false;
- info->data.ia32.sse2 = false;
- info->data.ia32.sse3 = false;
- info->data.ia32.ssse3 = false;
- info->data.ia32._3dnow = false;
- info->data.ia32.ext3dnow = false;
- info->data.ia32.extmmx = false;
- if(info->data.ia32.cpuid) {
- /* http://www.sandpile.org/ia32/cpuid.htm */
- FLAC__uint32 flags_edx, flags_ecx;
- FLAC__cpu_info_asm_ia32(&flags_edx, &flags_ecx);
- info->data.ia32.cmov = (flags_edx & FLAC__CPUINFO_IA32_CPUID_CMOV )? true : false;
- info->data.ia32.mmx = (flags_edx & FLAC__CPUINFO_IA32_CPUID_MMX )? true : false;
- info->data.ia32.fxsr = (flags_edx & FLAC__CPUINFO_IA32_CPUID_FXSR )? true : false;
- info->data.ia32.sse = (flags_edx & FLAC__CPUINFO_IA32_CPUID_SSE )? true : false;
- info->data.ia32.sse2 = (flags_edx & FLAC__CPUINFO_IA32_CPUID_SSE2 )? true : false;
- info->data.ia32.sse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE3 )? true : false;
- info->data.ia32.ssse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSSE3)? true : false;
-
-#ifdef FLAC__USE_3DNOW
- flags_edx = FLAC__cpu_info_extended_amd_asm_ia32();
- info->data.ia32._3dnow = (flags_edx & FLAC__CPUINFO_IA32_CPUID_EXTENDED_AMD_3DNOW )? true : false;
- info->data.ia32.ext3dnow = (flags_edx & FLAC__CPUINFO_IA32_CPUID_EXTENDED_AMD_EXT3DNOW)? true : false;
- info->data.ia32.extmmx = (flags_edx & FLAC__CPUINFO_IA32_CPUID_EXTENDED_AMD_EXTMMX )? true : false;
-#else
- info->data.ia32._3dnow = info->data.ia32.ext3dnow = info->data.ia32.extmmx = false;
-#endif
-
-#ifdef DEBUG
- fprintf(stderr, "CPU info (IA-32):\n");
- fprintf(stderr, " CPUID ...... %c\n", info->data.ia32.cpuid ? 'Y' : 'n');
- fprintf(stderr, " BSWAP ...... %c\n", info->data.ia32.bswap ? 'Y' : 'n');
- fprintf(stderr, " CMOV ....... %c\n", info->data.ia32.cmov ? 'Y' : 'n');
- fprintf(stderr, " MMX ........ %c\n", info->data.ia32.mmx ? 'Y' : 'n');
- fprintf(stderr, " FXSR ....... %c\n", info->data.ia32.fxsr ? 'Y' : 'n');
- fprintf(stderr, " SSE ........ %c\n", info->data.ia32.sse ? 'Y' : 'n');
- fprintf(stderr, " SSE2 ....... %c\n", info->data.ia32.sse2 ? 'Y' : 'n');
- fprintf(stderr, " SSE3 ....... %c\n", info->data.ia32.sse3 ? 'Y' : 'n');
- fprintf(stderr, " SSSE3 ...... %c\n", info->data.ia32.ssse3 ? 'Y' : 'n');
- fprintf(stderr, " 3DNow! ..... %c\n", info->data.ia32._3dnow ? 'Y' : 'n');
- fprintf(stderr, " 3DNow!-ext . %c\n", info->data.ia32.ext3dnow? 'Y' : 'n');
- fprintf(stderr, " 3DNow!-MMX . %c\n", info->data.ia32.extmmx ? 'Y' : 'n');
-#endif
-
- /*
- * now have to check for OS support of SSE/SSE2
- */
- if(info->data.ia32.fxsr || info->data.ia32.sse || info->data.ia32.sse2) {
-#if defined FLAC__NO_SSE_OS
- /* assume user knows better than us; turn it off */
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
-#elif defined FLAC__SSE_OS
- /* assume user knows better than us; leave as detected above */
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__APPLE__)
- int sse = 0;
- size_t len;
- /* at least one of these must work: */
- len = sizeof(sse); sse = sse || (sysctlbyname("hw.instruction_sse", &sse, &len, NULL, 0) == 0 && sse);
- len = sizeof(sse); sse = sse || (sysctlbyname("hw.optional.sse" , &sse, &len, NULL, 0) == 0 && sse); /* __APPLE__ ? */
- if(!sse)
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
-#elif defined(__NetBSD__) || defined (__OpenBSD__)
-# if __NetBSD_Version__ >= 105250000 || (defined __OpenBSD__)
- int val = 0, mib[2] = { CTL_MACHDEP, CPU_SSE };
- size_t len = sizeof(val);
- if(sysctl(mib, 2, &val, &len, NULL, 0) < 0 || !val)
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
- else { /* double-check SSE2 */
- mib[1] = CPU_SSE2;
- len = sizeof(val);
- if(sysctl(mib, 2, &val, &len, NULL, 0) < 0 || !val)
- info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
- }
-# else
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
-# endif
-#elif defined(__linux__)
- int sse = 0;
- struct sigaction sigill_save;
-#ifdef USE_OBSOLETE_SIGCONTEXT_FLAVOR
- if(0 == sigaction(SIGILL, NULL, &sigill_save) && signal(SIGILL, (void (*)(int))sigill_handler_sse_os) != SIG_ERR)
-#else
- struct sigaction sigill_sse;
- sigill_sse.sa_sigaction = sigill_handler_sse_os;
- __sigemptyset(&sigill_sse.sa_mask);
- sigill_sse.sa_flags = SA_SIGINFO | SA_RESETHAND; /* SA_RESETHAND just in case our SIGILL return jump breaks, so we don't get stuck in a loop */
- if(0 == sigaction(SIGILL, &sigill_sse, &sigill_save))
-#endif
- {
- /* http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html */
- /* see sigill_handler_sse_os() for an explanation of the following: */
- asm volatile (
- "xorl %0,%0\n\t" /* for some reason, still need to do this to clear 'sse' var */
- "xorps %%xmm0,%%xmm0\n\t" /* will cause SIGILL if unsupported by OS */
- "incl %0\n\t" /* SIGILL handler will jump over this */
- /* landing zone */
- "nop\n\t" /* SIGILL jump lands here if "inc" is 9 bytes */
- "nop\n\t"
- "nop\n\t"
- "nop\n\t"
- "nop\n\t"
- "nop\n\t"
- "nop\n\t" /* SIGILL jump lands here if "inc" is 3 bytes (expected) */
- "nop\n\t"
- "nop" /* SIGILL jump lands here if "inc" is 1 byte */
- : "=r"(sse)
- : "r"(sse)
- );
-
- sigaction(SIGILL, &sigill_save, NULL);
- }
-
- if(!sse)
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
-#elif defined(_MSC_VER)
-# ifdef USE_TRY_CATCH_FLAVOR
- _try {
- __asm {
-# if _MSC_VER <= 1200
- /* VC6 assembler doesn't know SSE, have to emit bytecode instead */
- _emit 0x0F
- _emit 0x57
- _emit 0xC0
-# else
- xorps xmm0,xmm0
-# endif
- }
- }
- _except(EXCEPTION_EXECUTE_HANDLER) {
- if (_exception_code() == STATUS_ILLEGAL_INSTRUCTION)
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
- }
-# else
- int sse = 0;
- LPTOP_LEVEL_EXCEPTION_FILTER save = SetUnhandledExceptionFilter(sigill_handler_sse_os);
- /* see GCC version above for explanation */
- /* http://msdn2.microsoft.com/en-us/library/4ks26t93.aspx */
- /* http://www.codeproject.com/cpp/gccasm.asp */
- /* http://www.hick.org/~mmiller/msvc_inline_asm.html */
- __asm {
-# if _MSC_VER <= 1200
- /* VC6 assembler doesn't know SSE, have to emit bytecode instead */
- _emit 0x0F
- _emit 0x57
- _emit 0xC0
-# else
- xorps xmm0,xmm0
-# endif
- inc sse
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- }
- SetUnhandledExceptionFilter(save);
- if(!sse)
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
-# endif
-#else
- /* no way to test, disable to be safe */
- info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = info->data.ia32.sse3 = info->data.ia32.ssse3 = false;
-#endif
-#ifdef DEBUG
- fprintf(stderr, " SSE OS sup . %c\n", info->data.ia32.sse ? 'Y' : 'n');
-#endif
-
- }
- }
-#else
- info->use_asm = false;
-#endif
-
-/*
- * PPC-specific
- */
-#elif defined FLAC__CPU_PPC
- info->type = FLAC__CPUINFO_TYPE_PPC;
-# if !defined FLAC__NO_ASM
- info->use_asm = true;
-# ifdef FLAC__USE_ALTIVEC
-# if defined FLAC__SYS_DARWIN
- {
- int val = 0, mib[2] = { CTL_HW, HW_VECTORUNIT };
- size_t len = sizeof(val);
- info->data.ppc.altivec = !(sysctl(mib, 2, &val, &len, NULL, 0) || !val);
- }
- {
- host_basic_info_data_t hostInfo;
- mach_msg_type_number_t infoCount;
-
- infoCount = HOST_BASIC_INFO_COUNT;
- host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount);
-
- info->data.ppc.ppc64 = (hostInfo.cpu_type == CPU_TYPE_POWERPC) && (hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_970);
- }
-# else /* FLAC__USE_ALTIVEC && !FLAC__SYS_DARWIN */
- {
- /* no Darwin, do it the brute-force way */
- /* @@@@@@ this is not thread-safe; replace with SSE OS method above or remove */
- info->data.ppc.altivec = 0;
- info->data.ppc.ppc64 = 0;
-
- signal (SIGILL, sigill_handler);
- canjump = 0;
- if (!sigsetjmp (jmpbuf, 1)) {
- canjump = 1;
-
- asm volatile (
- "mtspr 256, %0\n\t"
- "vand %%v0, %%v0, %%v0"
- :
- : "r" (-1)
- );
-
- info->data.ppc.altivec = 1;
- }
- canjump = 0;
- if (!sigsetjmp (jmpbuf, 1)) {
- int x = 0;
- canjump = 1;
-
- /* PPC64 hardware implements the cntlzd instruction */
- asm volatile ("cntlzd %0, %1" : "=r" (x) : "r" (x) );
-
- info->data.ppc.ppc64 = 1;
- }
- signal (SIGILL, SIG_DFL); /*@@@@@@ should save and restore old signal */
- }
-# endif
-# else /* !FLAC__USE_ALTIVEC */
- info->data.ppc.altivec = 0;
- info->data.ppc.ppc64 = 0;
-# endif
-# else
- info->use_asm = false;
-# endif
-
-/*
- * unknown CPI
- */
-#else
- info->type = FLAC__CPUINFO_TYPE_UNKNOWN;
- info->use_asm = false;
-#endif
-}
diff --git a/src/lib/libflac/libFLAC/crc.c b/src/lib/libflac/libFLAC/crc.c
deleted file mode 100644
index 52574f87c80..00000000000
--- a/src/lib/libflac/libFLAC/crc.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/crc.h"
-
-/* CRC-8, poly = x^8 + x^2 + x^1 + x^0, init = 0 */
-
-FLAC__byte const FLAC__crc8_table[256] = {
- 0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15,
- 0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
- 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
- 0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
- 0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5,
- 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
- 0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85,
- 0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
- 0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
- 0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
- 0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2,
- 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
- 0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32,
- 0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
- 0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
- 0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
- 0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C,
- 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
- 0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC,
- 0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
- 0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
- 0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
- 0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C,
- 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
- 0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B,
- 0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
- 0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
- 0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
- 0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB,
- 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
- 0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB,
- 0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3
-};
-
-/* CRC-16, poly = x^16 + x^15 + x^2 + x^0, init = 0 */
-
-unsigned FLAC__crc16_table[256] = {
- 0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011,
- 0x8033, 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022,
- 0x8063, 0x0066, 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072,
- 0x0050, 0x8055, 0x805f, 0x005a, 0x804b, 0x004e, 0x0044, 0x8041,
- 0x80c3, 0x00c6, 0x00cc, 0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
- 0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb, 0x00ee, 0x00e4, 0x80e1,
- 0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4, 0x80b1,
- 0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087, 0x0082,
- 0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
- 0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
- 0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1,
- 0x81d3, 0x01d6, 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2,
- 0x0140, 0x8145, 0x814f, 0x014a, 0x815b, 0x015e, 0x0154, 0x8151,
- 0x8173, 0x0176, 0x017c, 0x8179, 0x0168, 0x816d, 0x8167, 0x0162,
- 0x8123, 0x0126, 0x012c, 0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
- 0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e, 0x0104, 0x8101,
- 0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317, 0x0312,
- 0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
- 0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371,
- 0x8353, 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
- 0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1,
- 0x83f3, 0x03f6, 0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2,
- 0x83a3, 0x03a6, 0x03ac, 0x83a9, 0x03b8, 0x83bd, 0x83b7, 0x03b2,
- 0x0390, 0x8395, 0x839f, 0x039a, 0x838b, 0x038e, 0x0384, 0x8381,
- 0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
- 0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7, 0x02a2,
- 0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
- 0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1,
- 0x8243, 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252,
- 0x0270, 0x8275, 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
- 0x0220, 0x8225, 0x822f, 0x022a, 0x823b, 0x023e, 0x0234, 0x8231,
- 0x8213, 0x0216, 0x021c, 0x8219, 0x0208, 0x820d, 0x8207, 0x0202
-};
-
-
-void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc)
-{
- *crc = FLAC__crc8_table[*crc ^ data];
-}
-
-void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc)
-{
- while(len--)
- *crc = FLAC__crc8_table[*crc ^ *data++];
-}
-
-FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len)
-{
- FLAC__uint8 crc = 0;
-
- while(len--)
- crc = FLAC__crc8_table[crc ^ *data++];
-
- return crc;
-}
-
-unsigned FLAC__crc16(const FLAC__byte *data, unsigned len)
-{
- unsigned crc = 0;
-
- while(len--)
- crc = ((crc<<8) ^ FLAC__crc16_table[(crc>>8) ^ *data++]) & 0xffff;
-
- return crc;
-}
diff --git a/src/lib/libflac/libFLAC/fixed.c b/src/lib/libflac/libFLAC/fixed.c
deleted file mode 100644
index e92faf3d8ff..00000000000
--- a/src/lib/libflac/libFLAC/fixed.c
+++ /dev/null
@@ -1,435 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h>
-#include <string.h>
-#include "private/bitmath.h"
-#include "private/fixed.h"
-#include "FLAC/assert.h"
-
-#ifndef M_LN2
-/* math.h in VC++ doesn't seem to have this (how Microsoft is that?) */
-#define M_LN2 0.69314718055994530942
-#endif
-
-#ifdef min
-#undef min
-#endif
-#define min(x,y) ((x) < (y)? (x) : (y))
-
-#ifdef local_abs
-#undef local_abs
-#endif
-#define local_abs(x) ((unsigned)((x)<0? -(x) : (x)))
-
-#ifdef FLAC__INTEGER_ONLY_LIBRARY
-/* rbps stands for residual bits per sample
- *
- * (ln(2) * err)
- * rbps = log (-----------)
- * 2 ( n )
- */
-static FLAC__fixedpoint local__compute_rbps_integerized(FLAC__uint32 err, FLAC__uint32 n)
-{
- FLAC__uint32 rbps;
- unsigned bits; /* the number of bits required to represent a number */
- int fracbits; /* the number of bits of rbps that comprise the fractional part */
-
- FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
- FLAC__ASSERT(err > 0);
- FLAC__ASSERT(n > 0);
-
- FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
- if(err <= n)
- return 0;
- /*
- * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
- * These allow us later to know we won't lose too much precision in the
- * fixed-point division (err<<fracbits)/n.
- */
-
- fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2(err)+1);
-
- err <<= fracbits;
- err /= n;
- /* err now holds err/n with fracbits fractional bits */
-
- /*
- * Whittle err down to 16 bits max. 16 significant bits is enough for
- * our purposes.
- */
- FLAC__ASSERT(err > 0);
- bits = FLAC__bitmath_ilog2(err)+1;
- if(bits > 16) {
- err >>= (bits-16);
- fracbits -= (bits-16);
- }
- rbps = (FLAC__uint32)err;
-
- /* Multiply by fixed-point version of ln(2), with 16 fractional bits */
- rbps *= FLAC__FP_LN2;
- fracbits += 16;
- FLAC__ASSERT(fracbits >= 0);
-
- /* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
- {
- const int f = fracbits & 3;
- if(f) {
- rbps >>= f;
- fracbits -= f;
- }
- }
-
- rbps = FLAC__fixedpoint_log2(rbps, fracbits, (unsigned)(-1));
-
- if(rbps == 0)
- return 0;
-
- /*
- * The return value must have 16 fractional bits. Since the whole part
- * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
- * must be >= -3, these assertion allows us to be able to shift rbps
- * left if necessary to get 16 fracbits without losing any bits of the
- * whole part of rbps.
- *
- * There is a slight chance due to accumulated error that the whole part
- * will require 6 bits, so we use 6 in the assertion. Really though as
- * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
- */
- FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
- FLAC__ASSERT(fracbits >= -3);
-
- /* now shift the decimal point into place */
- if(fracbits < 16)
- return rbps << (16-fracbits);
- else if(fracbits > 16)
- return rbps >> (fracbits-16);
- else
- return rbps;
-}
-
-static FLAC__fixedpoint local__compute_rbps_wide_integerized(FLAC__uint64 err, FLAC__uint32 n)
-{
- FLAC__uint32 rbps;
- unsigned bits; /* the number of bits required to represent a number */
- int fracbits; /* the number of bits of rbps that comprise the fractional part */
-
- FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
- FLAC__ASSERT(err > 0);
- FLAC__ASSERT(n > 0);
-
- FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
- if(err <= n)
- return 0;
- /*
- * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
- * These allow us later to know we won't lose too much precision in the
- * fixed-point division (err<<fracbits)/n.
- */
-
- fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2_wide(err)+1);
-
- err <<= fracbits;
- err /= n;
- /* err now holds err/n with fracbits fractional bits */
-
- /*
- * Whittle err down to 16 bits max. 16 significant bits is enough for
- * our purposes.
- */
- FLAC__ASSERT(err > 0);
- bits = FLAC__bitmath_ilog2_wide(err)+1;
- if(bits > 16) {
- err >>= (bits-16);
- fracbits -= (bits-16);
- }
- rbps = (FLAC__uint32)err;
-
- /* Multiply by fixed-point version of ln(2), with 16 fractional bits */
- rbps *= FLAC__FP_LN2;
- fracbits += 16;
- FLAC__ASSERT(fracbits >= 0);
-
- /* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
- {
- const int f = fracbits & 3;
- if(f) {
- rbps >>= f;
- fracbits -= f;
- }
- }
-
- rbps = FLAC__fixedpoint_log2(rbps, fracbits, (unsigned)(-1));
-
- if(rbps == 0)
- return 0;
-
- /*
- * The return value must have 16 fractional bits. Since the whole part
- * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
- * must be >= -3, these assertion allows us to be able to shift rbps
- * left if necessary to get 16 fracbits without losing any bits of the
- * whole part of rbps.
- *
- * There is a slight chance due to accumulated error that the whole part
- * will require 6 bits, so we use 6 in the assertion. Really though as
- * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
- */
- FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
- FLAC__ASSERT(fracbits >= -3);
-
- /* now shift the decimal point into place */
- if(fracbits < 16)
- return rbps << (16-fracbits);
- else if(fracbits > 16)
- return rbps >> (fracbits-16);
- else
- return rbps;
-}
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#else
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#endif
-{
- FLAC__int32 last_error_0 = data[-1];
- FLAC__int32 last_error_1 = data[-1] - data[-2];
- FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
- FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
- FLAC__int32 error, save;
- FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
- unsigned i, order;
-
- for(i = 0; i < data_len; i++) {
- error = data[i] ; total_error_0 += local_abs(error); save = error;
- error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
- error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
- error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
- error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
- }
-
- if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- residual_bits_per_sample[0] = (FLAC__float)((total_error_0 > 0) ? log(M_LN2 * (FLAC__double)total_error_0 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (FLAC__float)((total_error_1 > 0) ? log(M_LN2 * (FLAC__double)total_error_1 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (FLAC__float)((total_error_2 > 0) ? log(M_LN2 * (FLAC__double)total_error_2 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (FLAC__float)((total_error_3 > 0) ? log(M_LN2 * (FLAC__double)total_error_3 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (FLAC__float)((total_error_4 > 0) ? log(M_LN2 * (FLAC__double)total_error_4 / (FLAC__double)data_len) / M_LN2 : 0.0);
-#else
- residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_integerized(total_error_0, data_len) : 0;
- residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_integerized(total_error_1, data_len) : 0;
- residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_integerized(total_error_2, data_len) : 0;
- residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_integerized(total_error_3, data_len) : 0;
- residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_integerized(total_error_4, data_len) : 0;
-#endif
-
- return order;
-}
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#else
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#endif
-{
- FLAC__int32 last_error_0 = data[-1];
- FLAC__int32 last_error_1 = data[-1] - data[-2];
- FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
- FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
- FLAC__int32 error, save;
- /* total_error_* are 64-bits to avoid overflow when encoding
- * erratic signals when the bits-per-sample and blocksize are
- * large.
- */
- FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
- unsigned i, order;
-
- for(i = 0; i < data_len; i++) {
- error = data[i] ; total_error_0 += local_abs(error); save = error;
- error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
- error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
- error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
- error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
- }
-
- if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if defined _MSC_VER || defined __MINGW32__
- /* with MSVC you have to spoon feed it the casting */
- residual_bits_per_sample[0] = (FLAC__float)((total_error_0 > 0) ? log(M_LN2 * (FLAC__double)(FLAC__int64)total_error_0 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (FLAC__float)((total_error_1 > 0) ? log(M_LN2 * (FLAC__double)(FLAC__int64)total_error_1 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (FLAC__float)((total_error_2 > 0) ? log(M_LN2 * (FLAC__double)(FLAC__int64)total_error_2 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (FLAC__float)((total_error_3 > 0) ? log(M_LN2 * (FLAC__double)(FLAC__int64)total_error_3 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (FLAC__float)((total_error_4 > 0) ? log(M_LN2 * (FLAC__double)(FLAC__int64)total_error_4 / (FLAC__double)data_len) / M_LN2 : 0.0);
-#else
- residual_bits_per_sample[0] = (FLAC__float)((total_error_0 > 0) ? log(M_LN2 * (FLAC__double)total_error_0 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (FLAC__float)((total_error_1 > 0) ? log(M_LN2 * (FLAC__double)total_error_1 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (FLAC__float)((total_error_2 > 0) ? log(M_LN2 * (FLAC__double)total_error_2 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (FLAC__float)((total_error_3 > 0) ? log(M_LN2 * (FLAC__double)total_error_3 / (FLAC__double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (FLAC__float)((total_error_4 > 0) ? log(M_LN2 * (FLAC__double)total_error_4 / (FLAC__double)data_len) / M_LN2 : 0.0);
-#endif
-#else
- residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_wide_integerized(total_error_0, data_len) : 0;
- residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_wide_integerized(total_error_1, data_len) : 0;
- residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_wide_integerized(total_error_2, data_len) : 0;
- residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_wide_integerized(total_error_3, data_len) : 0;
- residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_wide_integerized(total_error_4, data_len) : 0;
-#endif
-
- return order;
-}
-
-void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[])
-{
- const int idata_len = (int)data_len;
- int i;
-
- switch(order) {
- case 0:
- FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
- memcpy(residual, data, sizeof(residual[0])*data_len);
- break;
- case 1:
- for(i = 0; i < idata_len; i++)
- residual[i] = data[i] - data[i-1];
- break;
- case 2:
- for(i = 0; i < idata_len; i++)
-#if 1 /* OPT: may be faster with some compilers on some systems */
- residual[i] = data[i] - (data[i-1] << 1) + data[i-2];
-#else
- residual[i] = data[i] - 2*data[i-1] + data[i-2];
-#endif
- break;
- case 3:
- for(i = 0; i < idata_len; i++)
-#if 1 /* OPT: may be faster with some compilers on some systems */
- residual[i] = data[i] - (((data[i-1]-data[i-2])<<1) + (data[i-1]-data[i-2])) - data[i-3];
-#else
- residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
-#endif
- break;
- case 4:
- for(i = 0; i < idata_len; i++)
-#if 1 /* OPT: may be faster with some compilers on some systems */
- residual[i] = data[i] - ((data[i-1]+data[i-3])<<2) + ((data[i-2]<<2) + (data[i-2]<<1)) + data[i-4];
-#else
- residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
-#endif
- break;
- default:
- FLAC__ASSERT(0);
- }
-}
-
-void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[])
-{
- int i, idata_len = (int)data_len;
-
- switch(order) {
- case 0:
- FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
- memcpy(data, residual, sizeof(residual[0])*data_len);
- break;
- case 1:
- for(i = 0; i < idata_len; i++)
- data[i] = residual[i] + data[i-1];
- break;
- case 2:
- for(i = 0; i < idata_len; i++)
-#if 1 /* OPT: may be faster with some compilers on some systems */
- data[i] = residual[i] + (data[i-1]<<1) - data[i-2];
-#else
- data[i] = residual[i] + 2*data[i-1] - data[i-2];
-#endif
- break;
- case 3:
- for(i = 0; i < idata_len; i++)
-#if 1 /* OPT: may be faster with some compilers on some systems */
- data[i] = residual[i] + (((data[i-1]-data[i-2])<<1) + (data[i-1]-data[i-2])) + data[i-3];
-#else
- data[i] = residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
-#endif
- break;
- case 4:
- for(i = 0; i < idata_len; i++)
-#if 1 /* OPT: may be faster with some compilers on some systems */
- data[i] = residual[i] + ((data[i-1]+data[i-3])<<2) - ((data[i-2]<<2) + (data[i-2]<<1)) - data[i-4];
-#else
- data[i] = residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
-#endif
- break;
- default:
- FLAC__ASSERT(0);
- }
-}
diff --git a/src/lib/libflac/libFLAC/float.c b/src/lib/libflac/libFLAC/float.c
deleted file mode 100644
index 046fb1499a1..00000000000
--- a/src/lib/libflac/libFLAC/float.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "FLAC/assert.h"
-
-#include "private/float.h"
-
-#ifdef FLAC__INTEGER_ONLY_LIBRARY
-
-/* adjust for compilers that can't understand using LLU suffix for uint64_t literals */
-#ifdef _MSC_VER
-#define FLAC__U64L(x) x
-#else
-#define FLAC__U64L(x) x##LLU
-#endif
-
-const FLAC__fixedpoint FLAC__FP_ZERO = 0;
-const FLAC__fixedpoint FLAC__FP_ONE_HALF = 0x00008000;
-const FLAC__fixedpoint FLAC__FP_ONE = 0x00010000;
-const FLAC__fixedpoint FLAC__FP_LN2 = 45426;
-const FLAC__fixedpoint FLAC__FP_E = 178145;
-
-/* Lookup tables for Knuth's logarithm algorithm */
-#define LOG2_LOOKUP_PRECISION 16
-static const FLAC__uint32 log2_lookup[][LOG2_LOOKUP_PRECISION] = {
- {
- /*
- * 0 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00000001,
- /* lg(4/3) = */ 0x00000000,
- /* lg(8/7) = */ 0x00000000,
- /* lg(16/15) = */ 0x00000000,
- /* lg(32/31) = */ 0x00000000,
- /* lg(64/63) = */ 0x00000000,
- /* lg(128/127) = */ 0x00000000,
- /* lg(256/255) = */ 0x00000000,
- /* lg(512/511) = */ 0x00000000,
- /* lg(1024/1023) = */ 0x00000000,
- /* lg(2048/2047) = */ 0x00000000,
- /* lg(4096/4095) = */ 0x00000000,
- /* lg(8192/8191) = */ 0x00000000,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 4 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00000010,
- /* lg(4/3) = */ 0x00000007,
- /* lg(8/7) = */ 0x00000003,
- /* lg(16/15) = */ 0x00000001,
- /* lg(32/31) = */ 0x00000001,
- /* lg(64/63) = */ 0x00000000,
- /* lg(128/127) = */ 0x00000000,
- /* lg(256/255) = */ 0x00000000,
- /* lg(512/511) = */ 0x00000000,
- /* lg(1024/1023) = */ 0x00000000,
- /* lg(2048/2047) = */ 0x00000000,
- /* lg(4096/4095) = */ 0x00000000,
- /* lg(8192/8191) = */ 0x00000000,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 8 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00000100,
- /* lg(4/3) = */ 0x0000006a,
- /* lg(8/7) = */ 0x00000031,
- /* lg(16/15) = */ 0x00000018,
- /* lg(32/31) = */ 0x0000000c,
- /* lg(64/63) = */ 0x00000006,
- /* lg(128/127) = */ 0x00000003,
- /* lg(256/255) = */ 0x00000001,
- /* lg(512/511) = */ 0x00000001,
- /* lg(1024/1023) = */ 0x00000000,
- /* lg(2048/2047) = */ 0x00000000,
- /* lg(4096/4095) = */ 0x00000000,
- /* lg(8192/8191) = */ 0x00000000,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 12 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00001000,
- /* lg(4/3) = */ 0x000006a4,
- /* lg(8/7) = */ 0x00000315,
- /* lg(16/15) = */ 0x0000017d,
- /* lg(32/31) = */ 0x000000bc,
- /* lg(64/63) = */ 0x0000005d,
- /* lg(128/127) = */ 0x0000002e,
- /* lg(256/255) = */ 0x00000017,
- /* lg(512/511) = */ 0x0000000c,
- /* lg(1024/1023) = */ 0x00000006,
- /* lg(2048/2047) = */ 0x00000003,
- /* lg(4096/4095) = */ 0x00000001,
- /* lg(8192/8191) = */ 0x00000001,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 16 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00010000,
- /* lg(4/3) = */ 0x00006a40,
- /* lg(8/7) = */ 0x00003151,
- /* lg(16/15) = */ 0x000017d6,
- /* lg(32/31) = */ 0x00000bba,
- /* lg(64/63) = */ 0x000005d1,
- /* lg(128/127) = */ 0x000002e6,
- /* lg(256/255) = */ 0x00000172,
- /* lg(512/511) = */ 0x000000b9,
- /* lg(1024/1023) = */ 0x0000005c,
- /* lg(2048/2047) = */ 0x0000002e,
- /* lg(4096/4095) = */ 0x00000017,
- /* lg(8192/8191) = */ 0x0000000c,
- /* lg(16384/16383) = */ 0x00000006,
- /* lg(32768/32767) = */ 0x00000003
- },
- {
- /*
- * 20 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00100000,
- /* lg(4/3) = */ 0x0006a3fe,
- /* lg(8/7) = */ 0x00031513,
- /* lg(16/15) = */ 0x00017d60,
- /* lg(32/31) = */ 0x0000bb9d,
- /* lg(64/63) = */ 0x00005d10,
- /* lg(128/127) = */ 0x00002e59,
- /* lg(256/255) = */ 0x00001721,
- /* lg(512/511) = */ 0x00000b8e,
- /* lg(1024/1023) = */ 0x000005c6,
- /* lg(2048/2047) = */ 0x000002e3,
- /* lg(4096/4095) = */ 0x00000171,
- /* lg(8192/8191) = */ 0x000000b9,
- /* lg(16384/16383) = */ 0x0000005c,
- /* lg(32768/32767) = */ 0x0000002e
- },
- {
- /*
- * 24 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x01000000,
- /* lg(4/3) = */ 0x006a3fe6,
- /* lg(8/7) = */ 0x00315130,
- /* lg(16/15) = */ 0x0017d605,
- /* lg(32/31) = */ 0x000bb9ca,
- /* lg(64/63) = */ 0x0005d0fc,
- /* lg(128/127) = */ 0x0002e58f,
- /* lg(256/255) = */ 0x0001720e,
- /* lg(512/511) = */ 0x0000b8d8,
- /* lg(1024/1023) = */ 0x00005c61,
- /* lg(2048/2047) = */ 0x00002e2d,
- /* lg(4096/4095) = */ 0x00001716,
- /* lg(8192/8191) = */ 0x00000b8b,
- /* lg(16384/16383) = */ 0x000005c5,
- /* lg(32768/32767) = */ 0x000002e3
- },
- {
- /*
- * 28 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x10000000,
- /* lg(4/3) = */ 0x06a3fe5c,
- /* lg(8/7) = */ 0x03151301,
- /* lg(16/15) = */ 0x017d6049,
- /* lg(32/31) = */ 0x00bb9ca6,
- /* lg(64/63) = */ 0x005d0fba,
- /* lg(128/127) = */ 0x002e58f7,
- /* lg(256/255) = */ 0x001720da,
- /* lg(512/511) = */ 0x000b8d87,
- /* lg(1024/1023) = */ 0x0005c60b,
- /* lg(2048/2047) = */ 0x0002e2d7,
- /* lg(4096/4095) = */ 0x00017160,
- /* lg(8192/8191) = */ 0x0000b8ad,
- /* lg(16384/16383) = */ 0x00005c56,
- /* lg(32768/32767) = */ 0x00002e2b
- }
-};
-
-#if 0
-static const FLAC__uint64 log2_lookup_wide[] = {
- {
- /*
- * 32 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ FLAC__U64L(0x100000000),
- /* lg(4/3) = */ FLAC__U64L(0x6a3fe5c6),
- /* lg(8/7) = */ FLAC__U64L(0x31513015),
- /* lg(16/15) = */ FLAC__U64L(0x17d60497),
- /* lg(32/31) = */ FLAC__U64L(0x0bb9ca65),
- /* lg(64/63) = */ FLAC__U64L(0x05d0fba2),
- /* lg(128/127) = */ FLAC__U64L(0x02e58f74),
- /* lg(256/255) = */ FLAC__U64L(0x01720d9c),
- /* lg(512/511) = */ FLAC__U64L(0x00b8d875),
- /* lg(1024/1023) = */ FLAC__U64L(0x005c60aa),
- /* lg(2048/2047) = */ FLAC__U64L(0x002e2d72),
- /* lg(4096/4095) = */ FLAC__U64L(0x00171600),
- /* lg(8192/8191) = */ FLAC__U64L(0x000b8ad2),
- /* lg(16384/16383) = */ FLAC__U64L(0x0005c55d),
- /* lg(32768/32767) = */ FLAC__U64L(0x0002e2ac)
- },
- {
- /*
- * 48 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ FLAC__U64L(0x1000000000000),
- /* lg(4/3) = */ FLAC__U64L(0x6a3fe5c60429),
- /* lg(8/7) = */ FLAC__U64L(0x315130157f7a),
- /* lg(16/15) = */ FLAC__U64L(0x17d60496cfbb),
- /* lg(32/31) = */ FLAC__U64L(0xbb9ca64ecac),
- /* lg(64/63) = */ FLAC__U64L(0x5d0fba187cd),
- /* lg(128/127) = */ FLAC__U64L(0x2e58f7441ee),
- /* lg(256/255) = */ FLAC__U64L(0x1720d9c06a8),
- /* lg(512/511) = */ FLAC__U64L(0xb8d8752173),
- /* lg(1024/1023) = */ FLAC__U64L(0x5c60aa252e),
- /* lg(2048/2047) = */ FLAC__U64L(0x2e2d71b0d8),
- /* lg(4096/4095) = */ FLAC__U64L(0x1716001719),
- /* lg(8192/8191) = */ FLAC__U64L(0xb8ad1de1b),
- /* lg(16384/16383) = */ FLAC__U64L(0x5c55d640d),
- /* lg(32768/32767) = */ FLAC__U64L(0x2e2abcf52)
- }
-};
-#endif
-
-FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, unsigned fracbits, unsigned precision)
-{
- const FLAC__uint32 ONE = (1u << fracbits);
- const FLAC__uint32 *table = log2_lookup[fracbits >> 2];
-
- FLAC__ASSERT(fracbits < 32);
- FLAC__ASSERT((fracbits & 0x3) == 0);
-
- if(x < ONE)
- return 0;
-
- if(precision > LOG2_LOOKUP_PRECISION)
- precision = LOG2_LOOKUP_PRECISION;
-
- /* Knuth's algorithm for computing logarithms, optimized for base-2 with lookup tables */
- {
- FLAC__uint32 y = 0;
- FLAC__uint32 z = x >> 1, k = 1;
- while (x > ONE && k < precision) {
- if (x - z >= ONE) {
- x -= z;
- z = x >> k;
- y += table[k];
- }
- else {
- z >>= 1;
- k++;
- }
- }
- return y;
- }
-}
-
-#endif /* defined FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/src/lib/libflac/libFLAC/format.c b/src/lib/libflac/libFLAC/format.c
deleted file mode 100644
index 3480905108a..00000000000
--- a/src/lib/libflac/libFLAC/format.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h> /* for qsort() */
-#include <string.h> /* for memset() */
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-#include "private/format.h"
-
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
-#ifdef min
-#undef min
-#endif
-#define min(a,b) ((a)<(b)?(a):(b))
-
-/* adjust for compilers that can't understand using LLU suffix for uint64_t literals */
-#ifdef _MSC_VER
-#define FLAC__U64L(x) x
-#else
-#define FLAC__U64L(x) x##LLU
-#endif
-
-/* VERSION should come from configure */
-FLAC_API const char *FLAC__VERSION_STRING = VERSION;
-
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINW32__
-/* yet one more hack because of MSVC6: */
-FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC 1.2.1 20070917";
-#else
-FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " VERSION " 20070917";
-#endif
-
-FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' };
-FLAC_API const unsigned FLAC__STREAM_SYNC = 0x664C6143;
-FLAC_API const unsigned FLAC__STREAM_SYNC_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_APPLICATION_ID_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN = 16; /* bits */
-
-FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER = FLAC__U64L(0xffffffffffffffff);
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN = 8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN = 3*8; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN = 8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN = 12*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN = 1; /* bit */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN = 1; /* bit */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN = 6+13*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN = 8; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN = 128*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN = 1; /* bit */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN = 7+258*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN = 8; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_TYPE_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_COLORS_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_IS_LAST_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_TYPE_LEN = 7; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_LENGTH_LEN = 24; /* bits */
-
-FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC = 0x3ffe;
-FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC_LEN = 14; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_RESERVED_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCK_SIZE_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_SAMPLE_RATE_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN = 3; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_ZERO_PAD_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_CRC_LEN = 8; /* bits */
-
-FLAC_API const unsigned FLAC__FRAME_FOOTER_CRC_LEN = 16; /* bits */
-
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_TYPE_LEN = 2; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN = 5; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN = 5; /* bits */
-
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER = 15; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER = 31; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
-
-FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[] = {
- "PARTITIONED_RICE",
- "PARTITIONED_RICE2"
-};
-
-FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN = 5; /* bits */
-
-FLAC_API const unsigned FLAC__SUBFRAME_ZERO_PAD_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LEN = 6; /* bits */
-FLAC_API const unsigned FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN = 1; /* bits */
-
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK = 0x00;
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK = 0x02;
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK = 0x10;
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK = 0x40;
-
-FLAC_API const char * const FLAC__SubframeTypeString[] = {
- "CONSTANT",
- "VERBATIM",
- "FIXED",
- "LPC"
-};
-
-FLAC_API const char * const FLAC__ChannelAssignmentString[] = {
- "INDEPENDENT",
- "LEFT_SIDE",
- "RIGHT_SIDE",
- "MID_SIDE"
-};
-
-FLAC_API const char * const FLAC__FrameNumberTypeString[] = {
- "FRAME_NUMBER_TYPE_FRAME_NUMBER",
- "FRAME_NUMBER_TYPE_SAMPLE_NUMBER"
-};
-
-FLAC_API const char * const FLAC__MetadataTypeString[] = {
- "STREAMINFO",
- "PADDING",
- "APPLICATION",
- "SEEKTABLE",
- "VORBIS_COMMENT",
- "CUESHEET",
- "PICTURE"
-};
-
-FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[] = {
- "Other",
- "32x32 pixels 'file icon' (PNG only)",
- "Other file icon",
- "Cover (front)",
- "Cover (back)",
- "Leaflet page",
- "Media (e.g. label side of CD)",
- "Lead artist/lead performer/soloist",
- "Artist/performer",
- "Conductor",
- "Band/Orchestra",
- "Composer",
- "Lyricist/text writer",
- "Recording Location",
- "During recording",
- "During performance",
- "Movie/video screen capture",
- "A bright coloured fish",
- "Illustration",
- "Band/artist logotype",
- "Publisher/Studio logotype"
-};
-
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(unsigned sample_rate)
-{
- if(sample_rate == 0 || sample_rate > FLAC__MAX_SAMPLE_RATE) {
- return false;
- }
- else
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(unsigned sample_rate)
-{
- if(
- !FLAC__format_sample_rate_is_valid(sample_rate) ||
- (
- sample_rate >= (1u << 16) &&
- !(sample_rate % 1000 == 0 || sample_rate % 10 == 0)
- )
- ) {
- return false;
- }
- else
- return true;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table)
-{
- unsigned i;
- FLAC__uint64 prev_sample_number = 0;
- FLAC__bool got_prev = false;
-
- FLAC__ASSERT(0 != seek_table);
-
- for(i = 0; i < seek_table->num_points; i++) {
- if(got_prev) {
- if(
- seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
- seek_table->points[i].sample_number <= prev_sample_number
- )
- return false;
- }
- prev_sample_number = seek_table->points[i].sample_number;
- got_prev = true;
- }
-
- return true;
-}
-
-/* used as the sort predicate for qsort() */
-static int seekpoint_compare_(const FLAC__StreamMetadata_SeekPoint *l, const FLAC__StreamMetadata_SeekPoint *r)
-{
- /* we don't just 'return l->sample_number - r->sample_number' since the result (FLAC__int64) might overflow an 'int' */
- if(l->sample_number == r->sample_number)
- return 0;
- else if(l->sample_number < r->sample_number)
- return -1;
- else
- return 1;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API unsigned FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table)
-{
- unsigned i, j;
- FLAC__bool first;
-
- FLAC__ASSERT(0 != seek_table);
-
- /* sort the seekpoints */
- qsort(seek_table->points, seek_table->num_points, sizeof(FLAC__StreamMetadata_SeekPoint), (int (*)(const void *, const void *))seekpoint_compare_);
-
- /* uniquify the seekpoints */
- first = true;
- for(i = j = 0; i < seek_table->num_points; i++) {
- if(seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
- if(!first) {
- if(seek_table->points[i].sample_number == seek_table->points[j-1].sample_number)
- continue;
- }
- }
- first = false;
- seek_table->points[j++] = seek_table->points[i];
- }
-
- for(i = j; i < seek_table->num_points; i++) {
- seek_table->points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
-
- return j;
-}
-
-/*
- * also disallows non-shortest-form encodings, c.f.
- * http://www.unicode.org/versions/corrigendum1.html
- * and a more clear explanation at the end of this section:
- * http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
- */
-static FLaC__INLINE unsigned utf8len_(const FLAC__byte *utf8)
-{
- FLAC__ASSERT(0 != utf8);
- if ((utf8[0] & 0x80) == 0) {
- return 1;
- }
- else if ((utf8[0] & 0xE0) == 0xC0 && (utf8[1] & 0xC0) == 0x80) {
- if ((utf8[0] & 0xFE) == 0xC0) /* overlong sequence check */
- return 0;
- return 2;
- }
- else if ((utf8[0] & 0xF0) == 0xE0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80) {
- if (utf8[0] == 0xE0 && (utf8[1] & 0xE0) == 0x80) /* overlong sequence check */
- return 0;
- /* illegal surrogates check (U+D800...U+DFFF and U+FFFE...U+FFFF) */
- if (utf8[0] == 0xED && (utf8[1] & 0xE0) == 0xA0) /* D800-DFFF */
- return 0;
- if (utf8[0] == 0xEF && utf8[1] == 0xBF && (utf8[2] & 0xFE) == 0xBE) /* FFFE-FFFF */
- return 0;
- return 3;
- }
- else if ((utf8[0] & 0xF8) == 0xF0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80) {
- if (utf8[0] == 0xF0 && (utf8[1] & 0xF0) == 0x80) /* overlong sequence check */
- return 0;
- return 4;
- }
- else if ((utf8[0] & 0xFC) == 0xF8 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80) {
- if (utf8[0] == 0xF8 && (utf8[1] & 0xF8) == 0x80) /* overlong sequence check */
- return 0;
- return 5;
- }
- else if ((utf8[0] & 0xFE) == 0xFC && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80 && (utf8[5] & 0xC0) == 0x80) {
- if (utf8[0] == 0xFC && (utf8[1] & 0xFC) == 0x80) /* overlong sequence check */
- return 0;
- return 6;
- }
- else {
- return 0;
- }
-}
-
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name)
-{
- char c;
- for(c = *name; c; c = *(++name))
- if(c < 0x20 || c == 0x3d || c > 0x7d)
- return false;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, unsigned length)
-{
- if(length == (unsigned)(-1)) {
- while(*value) {
- unsigned n = utf8len_(value);
- if(n == 0)
- return false;
- value += n;
- }
- }
- else {
- const FLAC__byte *end = value + length;
- while(value < end) {
- unsigned n = utf8len_(value);
- if(n == 0)
- return false;
- value += n;
- }
- if(value != end)
- return false;
- }
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, unsigned length)
-{
- const FLAC__byte *s, *end;
-
- for(s = entry, end = s + length; s < end && *s != '='; s++) {
- if(*s < 0x20 || *s > 0x7D)
- return false;
- }
- if(s == end)
- return false;
-
- s++; /* skip '=' */
-
- while(s < end) {
- unsigned n = utf8len_(s);
- if(n == 0)
- return false;
- s += n;
- }
- if(s != end)
- return false;
-
- return true;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation)
-{
- unsigned i, j;
-
- if(check_cd_da_subset) {
- if(cue_sheet->lead_in < 2 * 44100) {
- if(violation) *violation = "CD-DA cue sheet must have a lead-in length of at least 2 seconds";
- return false;
- }
- if(cue_sheet->lead_in % 588 != 0) {
- if(violation) *violation = "CD-DA cue sheet lead-in length must be evenly divisible by 588 samples";
- return false;
- }
- }
-
- if(cue_sheet->num_tracks == 0) {
- if(violation) *violation = "cue sheet must have at least one track (the lead-out)";
- return false;
- }
-
- if(check_cd_da_subset && cue_sheet->tracks[cue_sheet->num_tracks-1].number != 170) {
- if(violation) *violation = "CD-DA cue sheet must have a lead-out track number 170 (0xAA)";
- return false;
- }
-
- for(i = 0; i < cue_sheet->num_tracks; i++) {
- if(cue_sheet->tracks[i].number == 0) {
- if(violation) *violation = "cue sheet may not have a track number 0";
- return false;
- }
-
- if(check_cd_da_subset) {
- if(!((cue_sheet->tracks[i].number >= 1 && cue_sheet->tracks[i].number <= 99) || cue_sheet->tracks[i].number == 170)) {
- if(violation) *violation = "CD-DA cue sheet track number must be 1-99 or 170";
- return false;
- }
- }
-
- if(check_cd_da_subset && cue_sheet->tracks[i].offset % 588 != 0) {
- if(violation) {
- if(i == cue_sheet->num_tracks-1) /* the lead-out track... */
- *violation = "CD-DA cue sheet lead-out offset must be evenly divisible by 588 samples";
- else
- *violation = "CD-DA cue sheet track offset must be evenly divisible by 588 samples";
- }
- return false;
- }
-
- if(i < cue_sheet->num_tracks - 1) {
- if(cue_sheet->tracks[i].num_indices == 0) {
- if(violation) *violation = "cue sheet track must have at least one index point";
- return false;
- }
-
- if(cue_sheet->tracks[i].indices[0].number > 1) {
- if(violation) *violation = "cue sheet track's first index number must be 0 or 1";
- return false;
- }
- }
-
- for(j = 0; j < cue_sheet->tracks[i].num_indices; j++) {
- if(check_cd_da_subset && cue_sheet->tracks[i].indices[j].offset % 588 != 0) {
- if(violation) *violation = "CD-DA cue sheet track index offset must be evenly divisible by 588 samples";
- return false;
- }
-
- if(j > 0) {
- if(cue_sheet->tracks[i].indices[j].number != cue_sheet->tracks[i].indices[j-1].number + 1) {
- if(violation) *violation = "cue sheet track index numbers must increase by 1";
- return false;
- }
- }
- }
- }
-
- return true;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation)
-{
- char *p;
- FLAC__byte *b;
-
- for(p = picture->mime_type; *p; p++) {
- if(*p < 0x20 || *p > 0x7e) {
- if(violation) *violation = "MIME type string must contain only printable ASCII characters (0x20-0x7e)";
- return false;
- }
- }
-
- for(b = picture->description; *b; ) {
- unsigned n = utf8len_(b);
- if(n == 0) {
- if(violation) *violation = "description string must be valid UTF-8";
- return false;
- }
- b += n;
- }
-
- return true;
-}
-
-/*
- * These routines are private to libFLAC
- */
-unsigned FLAC__format_get_max_rice_partition_order(unsigned blocksize, unsigned predictor_order)
-{
- return
- FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(
- FLAC__format_get_max_rice_partition_order_from_blocksize(blocksize),
- blocksize,
- predictor_order
- );
-}
-
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize(unsigned blocksize)
-{
- unsigned max_rice_partition_order = 0;
- while(!(blocksize & 1)) {
- max_rice_partition_order++;
- blocksize >>= 1;
- }
- return min(FLAC__MAX_RICE_PARTITION_ORDER, max_rice_partition_order);
-}
-
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(unsigned limit, unsigned blocksize, unsigned predictor_order)
-{
- unsigned max_rice_partition_order = limit;
-
- while(max_rice_partition_order > 0 && (blocksize >> max_rice_partition_order) <= predictor_order)
- max_rice_partition_order--;
-
- FLAC__ASSERT(
- (max_rice_partition_order == 0 && blocksize >= predictor_order) ||
- (max_rice_partition_order > 0 && blocksize >> max_rice_partition_order > predictor_order)
- );
-
- return max_rice_partition_order;
-}
-
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
-{
- FLAC__ASSERT(0 != object);
-
- object->parameters = 0;
- object->raw_bits = 0;
- object->capacity_by_order = 0;
-}
-
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
-{
- FLAC__ASSERT(0 != object);
-
- if(0 != object->parameters)
- free(object->parameters);
- if(0 != object->raw_bits)
- free(object->raw_bits);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(object);
-}
-
-FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, unsigned max_partition_order)
-{
- FLAC__ASSERT(0 != object);
-
- FLAC__ASSERT(object->capacity_by_order > 0 || (0 == object->parameters && 0 == object->raw_bits));
-
- if(object->capacity_by_order < max_partition_order) {
- if(0 == (object->parameters = (unsigned*)realloc(object->parameters, sizeof(unsigned)*((unsigned long long)1 << max_partition_order))))
- return false;
- if(0 == (object->raw_bits = (unsigned*)realloc(object->raw_bits, sizeof(unsigned)*((unsigned long long)1 << max_partition_order))))
- return false;
- memset(object->raw_bits, 0, sizeof(unsigned)*((unsigned long long)1 << max_partition_order));
- object->capacity_by_order = max_partition_order;
- }
-
- return true;
-}
diff --git a/src/lib/libflac/libFLAC/include/private/all.h b/src/lib/libflac/libFLAC/include/private/all.h
deleted file mode 100644
index 304c471a52a..00000000000
--- a/src/lib/libflac/libFLAC/include/private/all.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__ALL_H
-#define FLAC__PRIVATE__ALL_H
-
-#include "bitmath.h"
-#include "bitreader.h"
-#include "bitwriter.h"
-#include "cpu.h"
-#include "crc.h"
-#include "fixed.h"
-#include "float.h"
-#include "format.h"
-#include "lpc.h"
-#include "md5.h"
-#include "memory.h"
-#include "metadata.h"
-#include "stream_encoder_framing.h"
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/bitmath.h b/src/lib/libflac/libFLAC/include/private/bitmath.h
deleted file mode 100644
index 87fa0facd6b..00000000000
--- a/src/lib/libflac/libFLAC/include/private/bitmath.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__BITMATH_H
-#define FLAC__PRIVATE__BITMATH_H
-
-#include "FLAC/ordinals.h"
-
-unsigned FLAC__bitmath_ilog2(FLAC__uint32 v);
-unsigned FLAC__bitmath_ilog2_wide(FLAC__uint64 v);
-unsigned FLAC__bitmath_silog2(int v);
-unsigned FLAC__bitmath_silog2_wide(FLAC__int64 v);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/bitreader.h b/src/lib/libflac/libFLAC/include/private/bitreader.h
deleted file mode 100644
index fd0f6aac6ce..00000000000
--- a/src/lib/libflac/libFLAC/include/private/bitreader.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__BITREADER_H
-#define FLAC__PRIVATE__BITREADER_H
-
-#include <stdio.h> /* for FILE */
-#include "FLAC/ordinals.h"
-#include "cpu.h"
-
-/*
- * opaque structure definition
- */
-struct FLAC__BitReader;
-typedef struct FLAC__BitReader FLAC__BitReader;
-
-typedef FLAC__bool (*FLAC__BitReaderReadCallback)(FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-/*
- * construction, deletion, initialization, etc functions
- */
-FLAC__BitReader *FLAC__bitreader_new(void);
-void FLAC__bitreader_delete(FLAC__BitReader *br);
-FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__CPUInfo cpu, FLAC__BitReaderReadCallback rcb, void *cd);
-void FLAC__bitreader_free(FLAC__BitReader *br); /* does not 'free(br)' */
-FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br);
-void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out);
-
-/*
- * CRC functions
- */
-void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed);
-FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br);
-
-/*
- * info functions
- */
-FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br);
-unsigned FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br);
-unsigned FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br);
-
-/*
- * read functions
- */
-
-FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, unsigned bits);
-FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, unsigned bits);
-FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, unsigned bits);
-FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val); /*only for bits=32*/
-FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, unsigned bits); /* WATCHOUT: does not CRC the skipped data! */ /*@@@@ add to unit tests */
-FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, unsigned nvals); /* WATCHOUT: does not CRC the read data! */
-FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, unsigned nvals); /* WATCHOUT: does not CRC the read data! */
-FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, unsigned *val);
-FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, unsigned parameter);
-FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-FLAC__bool FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap(FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter);
-# endif
-# endif
-#endif
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, unsigned parameter);
-FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, unsigned *val, unsigned parameter);
-#endif
-FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, unsigned *rawlen);
-FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, unsigned *rawlen);
-
-FLAC__bool bitreader_read_from_client_(FLAC__BitReader *br);
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/bitwriter.h b/src/lib/libflac/libFLAC/include/private/bitwriter.h
deleted file mode 100644
index aa5c4f74fcb..00000000000
--- a/src/lib/libflac/libFLAC/include/private/bitwriter.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__BITWRITER_H
-#define FLAC__PRIVATE__BITWRITER_H
-
-#include <stdio.h> /* for FILE */
-#include "FLAC/ordinals.h"
-
-/*
- * opaque structure definition
- */
-struct FLAC__BitWriter;
-typedef struct FLAC__BitWriter FLAC__BitWriter;
-
-/*
- * construction, deletion, initialization, etc functions
- */
-FLAC__BitWriter *FLAC__bitwriter_new(void);
-void FLAC__bitwriter_delete(FLAC__BitWriter *bw);
-FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw);
-void FLAC__bitwriter_free(FLAC__BitWriter *bw); /* does not 'free(buffer)' */
-void FLAC__bitwriter_clear(FLAC__BitWriter *bw);
-void FLAC__bitwriter_dump(const FLAC__BitWriter *bw, FILE *out);
-
-/*
- * CRC functions
- *
- * non-const *bw because they have to cal FLAC__bitwriter_get_buffer()
- */
-FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc);
-FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc);
-
-/*
- * info functions
- */
-FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw);
-unsigned FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw); /* can be called anytime, returns total # of bits unconsumed */
-
-/*
- * direct buffer access
- *
- * there may be no calls on the bitwriter between get and release.
- * the bitwriter continues to own the returned buffer.
- * before get, bitwriter MUST be byte aligned: check with FLAC__bitwriter_is_byte_aligned()
- */
-FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes);
-void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw);
-
-/*
- * write functions
- */
-FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val); /*only for bits=32*/
-FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], unsigned nvals);
-FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, unsigned val);
-unsigned FLAC__bitwriter_rice_bits(FLAC__int32 val, unsigned parameter);
-#if 0 /* UNUSED */
-unsigned FLAC__bitwriter_golomb_bits_signed(int val, unsigned parameter);
-unsigned FLAC__bitwriter_golomb_bits_unsigned(unsigned val, unsigned parameter);
-#endif
-FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, unsigned parameter);
-FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, unsigned nvals, unsigned parameter);
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, unsigned parameter);
-FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, unsigned val, unsigned parameter);
-#endif
-FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val);
-FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val);
-FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/cpu.h b/src/lib/libflac/libFLAC/include/private/cpu.h
deleted file mode 100644
index 651bb224f2a..00000000000
--- a/src/lib/libflac/libFLAC/include/private/cpu.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__CPU_H
-#define FLAC__PRIVATE__CPU_H
-
-#include "FLAC/ordinals.h"
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-typedef enum {
- FLAC__CPUINFO_TYPE_IA32,
- FLAC__CPUINFO_TYPE_PPC,
- FLAC__CPUINFO_TYPE_UNKNOWN
-} FLAC__CPUInfo_Type;
-
-typedef struct {
- FLAC__bool cpuid;
- FLAC__bool bswap;
- FLAC__bool cmov;
- FLAC__bool mmx;
- FLAC__bool fxsr;
- FLAC__bool sse;
- FLAC__bool sse2;
- FLAC__bool sse3;
- FLAC__bool ssse3;
- FLAC__bool _3dnow;
- FLAC__bool ext3dnow;
- FLAC__bool extmmx;
-} FLAC__CPUInfo_IA32;
-
-typedef struct {
- FLAC__bool altivec;
- FLAC__bool ppc64;
-} FLAC__CPUInfo_PPC;
-
-typedef struct {
- FLAC__bool use_asm;
- FLAC__CPUInfo_Type type;
- union {
- FLAC__CPUInfo_IA32 ia32;
- FLAC__CPUInfo_PPC ppc;
- } data;
-} FLAC__CPUInfo;
-
-void FLAC__cpu_info(FLAC__CPUInfo *info);
-
-#ifndef FLAC__NO_ASM
-#ifdef FLAC__CPU_IA32
-#ifdef FLAC__HAS_NASM
-FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
-void FLAC__cpu_info_asm_ia32(FLAC__uint32 *flags_edx, FLAC__uint32 *flags_ecx);
-FLAC__uint32 FLAC__cpu_info_extended_amd_asm_ia32(void);
-#endif
-#endif
-#endif
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/crc.h b/src/lib/libflac/libFLAC/include/private/crc.h
deleted file mode 100644
index 0b67fb4be5d..00000000000
--- a/src/lib/libflac/libFLAC/include/private/crc.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__CRC_H
-#define FLAC__PRIVATE__CRC_H
-
-#include "FLAC/ordinals.h"
-
-/* 8 bit CRC generator, MSB shifted first
-** polynomial = x^8 + x^2 + x^1 + x^0
-** init = 0
-*/
-extern FLAC__byte const FLAC__crc8_table[256];
-#define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)];
-void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc);
-void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc);
-FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len);
-
-/* 16 bit CRC generator, MSB shifted first
-** polynomial = x^16 + x^15 + x^2 + x^0
-** init = 0
-*/
-extern unsigned FLAC__crc16_table[256];
-
-#define FLAC__CRC16_UPDATE(data, crc) (((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]))
-/* this alternate may be faster on some systems/compilers */
-#if 0
-#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) & 0xffff)
-#endif
-
-unsigned FLAC__crc16(const FLAC__byte *data, unsigned len);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/fixed.h b/src/lib/libflac/libFLAC/include/private/fixed.h
deleted file mode 100644
index f2e0f4fb15a..00000000000
--- a/src/lib/libflac/libFLAC/include/private/fixed.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__FIXED_H
-#define FLAC__PRIVATE__FIXED_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "private/float.h"
-#include "FLAC/format.h"
-
-/*
- * FLAC__fixed_compute_best_predictor()
- * --------------------------------------------------------------------
- * Compute the best fixed predictor and the expected bits-per-sample
- * of the residual signal for each order. The _wide() version uses
- * 64-bit integers which is statistically necessary when bits-per-
- * sample + log2(blocksize) > 30
- *
- * IN data[0,data_len-1]
- * IN data_len
- * OUT residual_bits_per_sample[0,FLAC__MAX_FIXED_ORDER]
- */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-# ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-unsigned FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-# endif
-# endif
-# endif
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#else
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#endif
-
-/*
- * FLAC__fixed_compute_residual()
- * --------------------------------------------------------------------
- * Compute the residual signal obtained from sutracting the predicted
- * signal from the original.
- *
- * IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
- * IN data_len length of original signal
- * IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
- * OUT residual[0,data_len-1] residual signal
- */
-void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[]);
-
-/*
- * FLAC__fixed_restore_signal()
- * --------------------------------------------------------------------
- * Restore the original signal by summing the residual and the
- * predictor.
- *
- * IN residual[0,data_len-1] residual signal
- * IN data_len length of original signal
- * IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
- * *** IMPORTANT: the caller must pass in the historical samples:
- * IN data[-order,-1] previously-reconstructed historical samples
- * OUT data[0,data_len-1] original signal
- */
-void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[]);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/float.h b/src/lib/libflac/libFLAC/include/private/float.h
deleted file mode 100644
index 6f7ae610f35..00000000000
--- a/src/lib/libflac/libFLAC/include/private/float.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__FLOAT_H
-#define FLAC__PRIVATE__FLOAT_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "FLAC/ordinals.h"
-
-/*
- * These typedefs make it easier to ensure that integer versions of
- * the library really only contain integer operations. All the code
- * in libFLAC should use FLAC__float and FLAC__double in place of
- * float and double, and be protected by checks of the macro
- * FLAC__INTEGER_ONLY_LIBRARY.
- *
- * FLAC__real is the basic floating point type used in LPC analysis.
- */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-typedef double FLAC__double;
-typedef float FLAC__float;
-/*
- * WATCHOUT: changing FLAC__real will change the signatures of many
- * functions that have assembly language equivalents and break them.
- */
-typedef float FLAC__real;
-#else
-/*
- * The convention for FLAC__fixedpoint is to use the upper 16 bits
- * for the integer part and lower 16 bits for the fractional part.
- */
-typedef FLAC__int32 FLAC__fixedpoint;
-extern const FLAC__fixedpoint FLAC__FP_ZERO;
-extern const FLAC__fixedpoint FLAC__FP_ONE_HALF;
-extern const FLAC__fixedpoint FLAC__FP_ONE;
-extern const FLAC__fixedpoint FLAC__FP_LN2;
-extern const FLAC__fixedpoint FLAC__FP_E;
-
-#define FLAC__fixedpoint_trunc(x) ((x)>>16)
-
-#define FLAC__fixedpoint_mul(x, y) ( (FLAC__fixedpoint) ( ((FLAC__int64)(x)*(FLAC__int64)(y)) >> 16 ) )
-
-#define FLAC__fixedpoint_div(x, y) ( (FLAC__fixedpoint) ( ( ((FLAC__int64)(x)<<32) / (FLAC__int64)(y) ) >> 16 ) )
-
-/*
- * FLAC__fixedpoint_log2()
- * --------------------------------------------------------------------
- * Returns the base-2 logarithm of the fixed-point number 'x' using an
- * algorithm by Knuth for x >= 1.0
- *
- * 'fracbits' is the number of fractional bits of 'x'. 'fracbits' must
- * be < 32 and evenly divisible by 4 (0 is OK but not very precise).
- *
- * 'precision' roughly limits the number of iterations that are done;
- * use (unsigned)(-1) for maximum precision.
- *
- * If 'x' is less than one -- that is, x < (1<<fracbits) -- then this
- * function will punt and return 0.
- *
- * The return value will also have 'fracbits' fractional bits.
- */
-FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, unsigned fracbits, unsigned precision);
-
-#endif
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/format.h b/src/lib/libflac/libFLAC/include/private/format.h
deleted file mode 100644
index 7f5cc9360dc..00000000000
--- a/src/lib/libflac/libFLAC/include/private/format.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__FORMAT_H
-#define FLAC__PRIVATE__FORMAT_H
-
-#include "FLAC/format.h"
-
-unsigned FLAC__format_get_max_rice_partition_order(unsigned blocksize, unsigned predictor_order);
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize(unsigned blocksize);
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(unsigned limit, unsigned blocksize, unsigned predictor_order);
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
-FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, unsigned max_partition_order);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/lpc.h b/src/lib/libflac/libFLAC/include/private/lpc.h
deleted file mode 100644
index 35588bd718e..00000000000
--- a/src/lib/libflac/libFLAC/include/private/lpc.h
+++ /dev/null
@@ -1,214 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__LPC_H
-#define FLAC__PRIVATE__LPC_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "private/float.h"
-#include "FLAC/format.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-/*
- * FLAC__lpc_window_data()
- * --------------------------------------------------------------------
- * Applies the given window to the data.
- * OPT: asm implementation
- *
- * IN in[0,data_len-1]
- * IN window[0,data_len-1]
- * OUT out[0,lag-1]
- * IN data_len
- */
-void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len);
-
-/*
- * FLAC__lpc_compute_autocorrelation()
- * --------------------------------------------------------------------
- * Compute the autocorrelation for lags between 0 and lag-1.
- * Assumes data[] outside of [0,data_len-1] == 0.
- * Asserts that lag > 0.
- *
- * IN data[0,data_len-1]
- * IN data_len
- * IN 0 < lag <= data_len
- * OUT autoc[0,lag-1]
- */
-void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-void FLAC__lpc_compute_autocorrelation_asm_ia32(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_3dnow(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-# endif
-# endif
-#endif
-
-/*
- * FLAC__lpc_compute_lp_coefficients()
- * --------------------------------------------------------------------
- * Computes LP coefficients for orders 1..max_order.
- * Do not call if autoc[0] == 0.0. This means the signal is zero
- * and there is no point in calculating a predictor.
- *
- * IN autoc[0,max_order] autocorrelation values
- * IN 0 < max_order <= FLAC__MAX_LPC_ORDER max LP order to compute
- * OUT lp_coeff[0,max_order-1][0,max_order-1] LP coefficients for each order
- * *** IMPORTANT:
- * *** lp_coeff[0,max_order-1][max_order,FLAC__MAX_LPC_ORDER-1] are untouched
- * OUT error[0,max_order-1] error for each order (more
- * specifically, the variance of
- * the error signal times # of
- * samples in the signal)
- *
- * Example: if max_order is 9, the LP coefficients for order 9 will be
- * in lp_coeff[8][0,8], the LP coefficients for order 8 will be
- * in lp_coeff[7][0,7], etc.
- */
-void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], unsigned *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], FLAC__double error[]);
-
-/*
- * FLAC__lpc_quantize_coefficients()
- * --------------------------------------------------------------------
- * Quantizes the LP coefficients. NOTE: precision + bits_per_sample
- * must be less than 32 (sizeof(FLAC__int32)*8).
- *
- * IN lp_coeff[0,order-1] LP coefficients
- * IN order LP order
- * IN FLAC__MIN_QLP_COEFF_PRECISION < precision
- * desired precision (in bits, including sign
- * bit) of largest coefficient
- * OUT qlp_coeff[0,order-1] quantized coefficients
- * OUT shift # of bits to shift right to get approximated
- * LP coefficients. NOTE: could be negative.
- * RETURN 0 => quantization OK
- * 1 => coefficients require too much shifting for *shift to
- * fit in the LPC subframe header. 'shift' is unset.
- * 2 => coefficients are all zero, which is bad. 'shift' is
- * unset.
- */
-int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order, unsigned precision, FLAC__int32 qlp_coeff[], int *shift);
-
-/*
- * FLAC__lpc_compute_residual_from_qlp_coefficients()
- * --------------------------------------------------------------------
- * Compute the residual signal obtained from sutracting the predicted
- * signal from the original.
- *
- * IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
- * IN data_len length of original signal
- * IN qlp_coeff[0,order-1] quantized LP coefficients
- * IN order > 0 LP order
- * IN lp_quantization quantization of LP coefficients in bits
- * OUT residual[0,data_len-1] residual signal
- */
-void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-void FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-# endif
-# endif
-#endif
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-/*
- * FLAC__lpc_restore_signal()
- * --------------------------------------------------------------------
- * Restore the original signal by summing the residual and the
- * predictor.
- *
- * IN residual[0,data_len-1] residual signal
- * IN data_len length of original signal
- * IN qlp_coeff[0,order-1] quantized LP coefficients
- * IN order > 0 LP order
- * IN lp_quantization quantization of LP coefficients in bits
- * *** IMPORTANT: the caller must pass in the historical samples:
- * IN data[-order,-1] previously-reconstructed historical samples
- * OUT data[0,data_len-1] original signal
- */
-void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-void FLAC__lpc_restore_signal_asm_ia32(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-void FLAC__lpc_restore_signal_asm_ia32_mmx(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-# endif /* FLAC__HAS_NASM */
-# elif defined FLAC__CPU_PPC
-void FLAC__lpc_restore_signal_asm_ppc_altivec_16(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-void FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-# endif/* FLAC__CPU_IA32 || FLAC__CPU_PPC */
-#endif /* FLAC__NO_ASM */
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-/*
- * FLAC__lpc_compute_expected_bits_per_residual_sample()
- * --------------------------------------------------------------------
- * Compute the expected number of bits per residual signal sample
- * based on the LP error (which is related to the residual variance).
- *
- * IN lpc_error >= 0.0 error returned from calculating LP coefficients
- * IN total_samples > 0 # of samples in residual signal
- * RETURN expected bits per sample
- */
-FLAC__double FLAC__lpc_compute_expected_bits_per_residual_sample(FLAC__double lpc_error, unsigned total_samples);
-FLAC__double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(FLAC__double lpc_error, FLAC__double error_scale);
-
-/*
- * FLAC__lpc_compute_best_order()
- * --------------------------------------------------------------------
- * Compute the best order from the array of signal errors returned
- * during coefficient computation.
- *
- * IN lpc_error[0,max_order-1] >= 0.0 error returned from calculating LP coefficients
- * IN max_order > 0 max LP order
- * IN total_samples > 0 # of samples in residual signal
- * IN overhead_bits_per_order # of bits overhead for each increased LP order
- * (includes warmup sample size and quantized LP coefficient)
- * RETURN [1,max_order] best order
- */
-unsigned FLAC__lpc_compute_best_order(const FLAC__double lpc_error[], unsigned max_order, unsigned total_samples, unsigned overhead_bits_per_order);
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/md5.h b/src/lib/libflac/libFLAC/include/private/md5.h
deleted file mode 100644
index e5f675a830a..00000000000
--- a/src/lib/libflac/libFLAC/include/private/md5.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef FLAC__PRIVATE__MD5_H
-#define FLAC__PRIVATE__MD5_H
-
-/*
- * This is the header file for the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest. This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- *
- * Changed so as no longer to depend on Colin Plumb's `usual.h'
- * header definitions; now uses stuff from dpkg's config.h
- * - Ian Jackson <ijackson@nyx.cs.du.edu>.
- * Still in the public domain.
- *
- * Josh Coalson: made some changes to integrate with libFLAC.
- * Still in the public domain, with no warranty.
- */
-
-#include "FLAC/ordinals.h"
-
-typedef struct {
- FLAC__uint32 in[16];
- FLAC__uint32 buf[4];
- FLAC__uint32 bytes[2];
- FLAC__byte *internal_buf;
- size_t capacity;
-} FLAC__MD5Context;
-
-void FLAC__MD5Init(FLAC__MD5Context *context);
-void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *context);
-
-FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/memory.h b/src/lib/libflac/libFLAC/include/private/memory.h
deleted file mode 100644
index 38a9ffe0711..00000000000
--- a/src/lib/libflac/libFLAC/include/private/memory.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__MEMORY_H
-#define FLAC__PRIVATE__MEMORY_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdlib.h> /* for size_t */
-
-#include "private/float.h"
-#include "FLAC/ordinals.h" /* for FLAC__bool */
-
-/* Returns the unaligned address returned by malloc.
- * Use free() on this address to deallocate.
- */
-void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address);
-FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer);
-FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer);
-FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer);
-FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, unsigned **unaligned_pointer, unsigned **aligned_pointer);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer);
-#endif
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/metadata.h b/src/lib/libflac/libFLAC/include/private/metadata.h
deleted file mode 100644
index b5268c9552e..00000000000
--- a/src/lib/libflac/libFLAC/include/private/metadata.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__METADATA_H
-#define FLAC__PRIVATE__METADATA_H
-
-#include "FLAC/metadata.h"
-
-/* WATCHOUT: all malloc()ed data in the block is free()ed; this may not
- * be a consistent state (e.g. PICTURE) or equivalent to the initial
- * state after FLAC__metadata_object_new()
- */
-void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object);
-
-void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/stream_encoder_framing.h b/src/lib/libflac/libFLAC/include/private/stream_encoder_framing.h
deleted file mode 100644
index 4865c16c8a9..00000000000
--- a/src/lib/libflac/libFLAC/include/private/stream_encoder_framing.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
-#define FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
-
-#include "FLAC/format.h"
-#include "bitwriter.h"
-
-FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw);
-FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, unsigned samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/private/window.h b/src/lib/libflac/libFLAC/include/private/window.h
deleted file mode 100644
index 55a5bf29230..00000000000
--- a/src/lib/libflac/libFLAC/include/private/window.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__WINDOW_H
-#define FLAC__PRIVATE__WINDOW_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "private/float.h"
-#include "FLAC/format.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-/*
- * FLAC__window_*()
- * --------------------------------------------------------------------
- * Calculates window coefficients according to different apodization
- * functions.
- *
- * OUT window[0,L-1]
- * IN L (number of points in window)
- */
-void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev); /* 0.0 < stddev <= 0.5 */
-void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p);
-void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L);
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/protected/all.h b/src/lib/libflac/libFLAC/include/protected/all.h
deleted file mode 100644
index 2921092b380..00000000000
--- a/src/lib/libflac/libFLAC/include/protected/all.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PROTECTED__ALL_H
-#define FLAC__PROTECTED__ALL_H
-
-#include "stream_decoder.h"
-#include "stream_encoder.h"
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/protected/stream_decoder.h b/src/lib/libflac/libFLAC/include/protected/stream_decoder.h
deleted file mode 100644
index 9108ca78f22..00000000000
--- a/src/lib/libflac/libFLAC/include/protected/stream_decoder.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PROTECTED__STREAM_DECODER_H
-#define FLAC__PROTECTED__STREAM_DECODER_H
-
-#include "FLAC/stream_decoder.h"
-#if FLAC__HAS_OGG
-#include "private/ogg_decoder_aspect.h"
-#endif
-
-typedef struct FLAC__StreamDecoderProtected {
- FLAC__StreamDecoderState state;
- unsigned channels;
- FLAC__ChannelAssignment channel_assignment;
- unsigned bits_per_sample;
- unsigned sample_rate; /* in Hz */
- unsigned blocksize; /* in samples (per channel) */
- FLAC__bool md5_checking; /* if true, generate MD5 signature of decoded data and compare against signature in the STREAMINFO metadata block */
-#if FLAC__HAS_OGG
- FLAC__OggDecoderAspect ogg_decoder_aspect;
-#endif
-} FLAC__StreamDecoderProtected;
-
-/*
- * return the number of input bytes consumed
- */
-unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder);
-
-#endif
diff --git a/src/lib/libflac/libFLAC/include/protected/stream_encoder.h b/src/lib/libflac/libFLAC/include/protected/stream_encoder.h
deleted file mode 100644
index 4101ee55288..00000000000
--- a/src/lib/libflac/libFLAC/include/protected/stream_encoder.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PROTECTED__STREAM_ENCODER_H
-#define FLAC__PROTECTED__STREAM_ENCODER_H
-
-#include "FLAC/stream_encoder.h"
-#if FLAC__HAS_OGG
-#include "private/ogg_encoder_aspect.h"
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-#include "private/float.h"
-
-#define FLAC__MAX_APODIZATION_FUNCTIONS 32
-
-typedef enum {
- FLAC__APODIZATION_BARTLETT,
- FLAC__APODIZATION_BARTLETT_HANN,
- FLAC__APODIZATION_BLACKMAN,
- FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE,
- FLAC__APODIZATION_CONNES,
- FLAC__APODIZATION_FLATTOP,
- FLAC__APODIZATION_GAUSS,
- FLAC__APODIZATION_HAMMING,
- FLAC__APODIZATION_HANN,
- FLAC__APODIZATION_KAISER_BESSEL,
- FLAC__APODIZATION_NUTTALL,
- FLAC__APODIZATION_RECTANGLE,
- FLAC__APODIZATION_TRIANGLE,
- FLAC__APODIZATION_TUKEY,
- FLAC__APODIZATION_WELCH
-} FLAC__ApodizationFunction;
-
-typedef struct {
- FLAC__ApodizationFunction type;
- union {
- struct {
- FLAC__real stddev;
- } gauss;
- struct {
- FLAC__real p;
- } tukey;
- } parameters;
-} FLAC__ApodizationSpecification;
-
-#endif // #ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-typedef struct FLAC__StreamEncoderProtected {
- FLAC__StreamEncoderState state;
- FLAC__bool verify;
- FLAC__bool streamable_subset;
- FLAC__bool do_md5;
- FLAC__bool do_mid_side_stereo;
- FLAC__bool loose_mid_side_stereo;
- unsigned channels;
- unsigned bits_per_sample;
- unsigned sample_rate;
- unsigned blocksize;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- unsigned num_apodizations;
- FLAC__ApodizationSpecification apodizations[FLAC__MAX_APODIZATION_FUNCTIONS];
-#endif
- unsigned max_lpc_order;
- unsigned qlp_coeff_precision;
- FLAC__bool do_qlp_coeff_prec_search;
- FLAC__bool do_exhaustive_model_search;
- FLAC__bool do_escape_coding;
- unsigned min_residual_partition_order;
- unsigned max_residual_partition_order;
- unsigned rice_parameter_search_dist;
- FLAC__uint64 total_samples_estimate;
- FLAC__StreamMetadata **metadata;
- unsigned num_metadata_blocks;
- FLAC__uint64 streaminfo_offset, seektable_offset, audio_offset;
-#if FLAC__HAS_OGG
- FLAC__OggEncoderAspect ogg_encoder_aspect;
-#endif
-} FLAC__StreamEncoderProtected;
-
-#endif
diff --git a/src/lib/libflac/libFLAC/lpc.c b/src/lib/libflac/libFLAC/lpc.c
deleted file mode 100644
index 8e8332590a8..00000000000
--- a/src/lib/libflac/libFLAC/lpc.c
+++ /dev/null
@@ -1,1384 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h>
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-#include "private/bitmath.h"
-#include "private/lpc.h"
-#if defined DEBUG || defined FLAC__OVERFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
-#include <stdio.h>
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-#ifndef M_LN2
-/* math.h in VC++ doesn't seem to have this (how Microsoft is that?) */
-#define M_LN2 0.69314718055994530942
-#endif
-
-/* OPT: #undef'ing this may improve the speed on some architectures */
-#define FLAC__LPC_UNROLLED_FILTER_LOOPS
-
-
-void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len)
-{
- unsigned i;
- for(i = 0; i < data_len; i++)
- out[i] = in[i] * window[i];
-}
-
-#if defined(__GNUC__) && defined(__i386__) && (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
-__attribute__((optimize("O0")))
-#endif
-void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- /* a readable, but slower, version */
-#if 0
- FLAC__real d;
- unsigned i;
-
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= data_len);
-
- /*
- * Technically we should subtract the mean first like so:
- * for(i = 0; i < data_len; i++)
- * data[i] -= mean;
- * but it appears not to make enough of a difference to matter, and
- * most signals are already closely centered around zero
- */
- while(lag--) {
- for(i = lag, d = 0.0; i < data_len; i++)
- d += data[i] * data[i - lag];
- autoc[lag] = d;
- }
-#endif
-
- /*
- * this version tends to run faster because of better data locality
- * ('data_len' is usually much larger than 'lag')
- */
- FLAC__real d, tmp;
- unsigned sample, coeff;
- const unsigned limit = data_len - lag;
-
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= data_len);
-
- for(coeff = 0; coeff < lag; coeff++)
- autoc[coeff] = 0.0;
- for(sample = 0; sample <= limit; sample++) {
- d = data[sample];
- for(coeff = 0; coeff < lag; coeff++) {
- tmp = d * data[sample+coeff];
- autoc[coeff] += tmp;
- }
- }
- for(; sample < data_len; sample++) {
- d = data[sample];
- for(coeff = 0; coeff < data_len - sample; coeff++) {
- tmp = d * data[sample+coeff];
- autoc[coeff] += tmp;
- }
- }
-}
-
-void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], unsigned *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], FLAC__double error[])
-{
- unsigned i, j;
- FLAC__double r, err, lpc[FLAC__MAX_LPC_ORDER];
-
- FLAC__ASSERT(0 != max_order);
- FLAC__ASSERT(0 < *max_order);
- FLAC__ASSERT(*max_order <= FLAC__MAX_LPC_ORDER);
- FLAC__ASSERT(autoc[0] != 0.0);
-
- err = autoc[0];
-
- for(i = 0; i < *max_order; i++) {
- /* Sum up this iteration's reflection coefficient. */
- r = -autoc[i+1];
- for(j = 0; j < i; j++)
- r -= lpc[j] * autoc[i-j];
- r/=err;
-
- /* Update LPC coefficients and total error. */
- lpc[i]=r;
- for(j = 0; j < (i>>1); j++) {
- FLAC__double tmp = lpc[j];
- lpc[j] += r * lpc[i-1-j];
- lpc[i-1-j] += r * tmp;
- }
- if(i & 1)
- lpc[j] += lpc[j] * r;
-
- err *= (1.0 - r * r);
-
- /* save this order */
- for(j = 0; j <= i; j++)
- lp_coeff[i][j] = (FLAC__real)(-lpc[j]); /* negate FIR filter coeff to get predictor coeff */
- error[i] = err;
-
- /* see SF bug #1601812 http://sourceforge.net/tracker/index.php?func=detail&aid=1601812&group_id=13478&atid=113478 */
- if(err == 0.0) {
- *max_order = i+1;
- return;
- }
- }
-}
-
-int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order, unsigned precision, FLAC__int32 qlp_coeff[], int *shift)
-{
- unsigned i;
- FLAC__double cmax;
- FLAC__int32 qmax, qmin;
-
- FLAC__ASSERT(precision > 0);
- FLAC__ASSERT(precision >= FLAC__MIN_QLP_COEFF_PRECISION);
-
- /* drop one bit for the sign; from here on out we consider only |lp_coeff[i]| */
- precision--;
- qmax = 1 << precision;
- qmin = -qmax;
- qmax--;
-
- /* calc cmax = max( |lp_coeff[i]| ) */
- cmax = 0.0;
- for(i = 0; i < order; i++) {
- const FLAC__double d = fabs(lp_coeff[i]);
- if(d > cmax)
- cmax = d;
- }
-
- if(cmax <= 0.0) {
- /* => coefficients are all 0, which means our constant-detect didn't work */
- return 2;
- }
- else {
- const int max_shiftlimit = (1 << (FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN-1)) - 1;
- const int min_shiftlimit = -max_shiftlimit - 1;
- int log2cmax;
-
- (void)frexp(cmax, &log2cmax);
- log2cmax--;
- *shift = (int)precision - log2cmax - 1;
-
- if(*shift > max_shiftlimit)
- *shift = max_shiftlimit;
- else if(*shift < min_shiftlimit)
- return 1;
- }
-
- if(*shift >= 0) {
- FLAC__double error = 0.0;
- FLAC__int32 q;
- for(i = 0; i < order; i++) {
- error += lp_coeff[i] * (1 << *shift);
-#if 1 /* unfortunately lround() is C99 */
- if(error >= 0.0)
- q = (FLAC__int32)(error + 0.5);
- else
- q = (FLAC__int32)(error - 0.5);
-#else
- q = lround(error);
-#endif
-#ifdef FLAC__OVERFLOW_DETECT
- if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
- else if(q < qmin)
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q<qmin %d<%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmin,*shift,cmax,precision+1,i,lp_coeff[i]);
-#endif
- if(q > qmax)
- q = qmax;
- else if(q < qmin)
- q = qmin;
- error -= q;
- qlp_coeff[i] = q;
- }
- }
- /* negative shift is very rare but due to design flaw, negative shift is
- * a NOP in the decoder, so it must be handled specially by scaling down
- * coeffs
- */
- else {
- const int nshift = -(*shift);
- FLAC__double error = 0.0;
- FLAC__int32 q;
-#ifdef DEBUG
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: negative shift=%d order=%u cmax=%f\n", *shift, order, cmax);
-#endif
- for(i = 0; i < order; i++) {
- error += lp_coeff[i] / (1 << nshift);
-#if 1 /* unfortunately lround() is C99 */
- if(error >= 0.0)
- q = (FLAC__int32)(error + 0.5);
- else
- q = (FLAC__int32)(error - 0.5);
-#else
- q = lround(error);
-#endif
-#ifdef FLAC__OVERFLOW_DETECT
- if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
- else if(q < qmin)
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q<qmin %d<%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmin,*shift,cmax,precision+1,i,lp_coeff[i]);
-#endif
- if(q > qmax)
- q = qmax;
- else if(q < qmin)
- q = qmin;
- error -= q;
- qlp_coeff[i] = q;
- }
- *shift = 0;
- }
-
- return 0;
-}
-
-void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- FLAC__int64 sumo;
- unsigned i, j;
- FLAC__int32 sum;
- const FLAC__int32 *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sumo = 0;
- sum = 0;
- history = data;
- for(j = 0; j < order; j++) {
- sum += qlp_coeff[j] * (*(--history));
- sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
-#if defined _MSC_VER
- if(sumo > 2147483647I64 || sumo < -2147483648I64)
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%I64d\n",i,j,qlp_coeff[j],*history,sumo);
-#else
- if(sumo > 2147483647ll || sumo < -2147483648ll)
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%lld\n",i,j,qlp_coeff[j],*history,(long long)sumo);
-#endif
- }
- *(residual++) = *(data++) - (sum >> lp_quantization);
- }
-
- /* Here's a slower but clearer version:
- for(i = 0; i < data_len; i++) {
- sum = 0;
- for(j = 0; j < order; j++)
- sum += qlp_coeff[j] * data[i-j-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- */
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int32 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
-}
-#endif
-
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- unsigned i, j;
- FLAC__int64 sum;
- const FLAC__int32 *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sum = 0;
- history = data;
- for(j = 0; j < order; j++)
- sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
- if(FLAC__bitmath_silog2_wide(sum >> lp_quantization) > 32) {
-#if defined _MSC_VER
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, sum=%I64d\n", i, sum >> lp_quantization);
-#else
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, sum=%lld\n", i, (long long)(sum >> lp_quantization));
-#endif
- break;
- }
- if(FLAC__bitmath_silog2_wide((FLAC__int64)(*data) - (sum >> lp_quantization)) > 32) {
-#if defined _MSC_VER
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, data=%d, sum=%I64d, residual=%I64d\n", i, *data, sum >> lp_quantization, (FLAC__int64)(*data) - (sum >> lp_quantization));
-#else
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, data=%d, sum=%lld, residual=%lld\n", i, *data, (long long)(sum >> lp_quantization), (long long)((FLAC__int64)(*data) - (sum >> lp_quantization)));
-#endif
- break;
- }
- *(residual++) = *(data++) - (FLAC__int32)(sum >> lp_quantization);
- }
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int64 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- residual[i] = data[i] - (FLAC__int32)((qlp_coeff[0] * (FLAC__int64)data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
-}
-#endif
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- FLAC__int64 sumo;
- unsigned i, j;
- FLAC__int32 sum;
- const FLAC__int32 *r = residual, *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_restore_signal: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sumo = 0;
- sum = 0;
- history = data;
- for(j = 0; j < order; j++) {
- sum += qlp_coeff[j] * (*(--history));
- sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
-#if defined _MSC_VER
- if(sumo > 2147483647I64 || sumo < -2147483648I64)
- fprintf(stderr,"FLAC__lpc_restore_signal: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%I64d\n",i,j,qlp_coeff[j],*history,sumo);
-#else
- if(sumo > 2147483647ll || sumo < -2147483648ll)
- fprintf(stderr,"FLAC__lpc_restore_signal: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%lld\n",i,j,qlp_coeff[j],*history,(long long)sumo);
-#endif
- }
- *(data++) = *(r++) + (sum >> lp_quantization);
- }
-
- /* Here's a slower but clearer version:
- for(i = 0; i < data_len; i++) {
- sum = 0;
- for(j = 0; j < order; j++)
- sum += qlp_coeff[j] * data[i-j-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- */
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int32 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- data[i] = residual[i] + ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
-}
-#endif
-
-void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- unsigned i, j;
- FLAC__int64 sum;
- const FLAC__int32 *r = residual, *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sum = 0;
- history = data;
- for(j = 0; j < order; j++)
- sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
- if(FLAC__bitmath_silog2_wide(sum >> lp_quantization) > 32) {
-#ifdef _MSC_VER
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, sum=%I64d\n", i, sum >> lp_quantization);
-#else
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, sum=%lld\n", i, (long long)(sum >> lp_quantization));
-#endif
- break;
- }
- if(FLAC__bitmath_silog2_wide((FLAC__int64)(*r) + (sum >> lp_quantization)) > 32) {
-#ifdef _MSC_VER
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, residual=%d, sum=%I64d, data=%I64d\n", i, *r, sum >> lp_quantization, (FLAC__int64)(*r) + (sum >> lp_quantization));
-#else
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, residual=%d, sum=%lld, data=%lld\n", i, *r, (long long)(sum >> lp_quantization), (long long)((FLAC__int64)(*r) + (sum >> lp_quantization)));
-#endif
- break;
- }
- *(data++) = *(r++) + (FLAC__int32)(sum >> lp_quantization);
- }
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int64 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- data[i] = residual[i] + (FLAC__int32)((qlp_coeff[0] * (FLAC__int64)data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
-}
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-FLAC__double FLAC__lpc_compute_expected_bits_per_residual_sample(FLAC__double lpc_error, unsigned total_samples)
-{
- FLAC__double error_scale;
-
- FLAC__ASSERT(total_samples > 0);
-
- error_scale = 0.5 * M_LN2 * M_LN2 / (FLAC__double)total_samples;
-
- return FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error, error_scale);
-}
-
-FLAC__double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(FLAC__double lpc_error, FLAC__double error_scale)
-{
- if(lpc_error > 0.0) {
- FLAC__double bps = (FLAC__double)0.5 * log(error_scale * lpc_error) / M_LN2;
- if(bps >= 0.0)
- return bps;
- else
- return 0.0;
- }
- else if(lpc_error < 0.0) { /* error should not be negative but can happen due to inadequate floating-point resolution */
- return 1e32;
- }
- else {
- return 0.0;
- }
-}
-
-unsigned FLAC__lpc_compute_best_order(const FLAC__double lpc_error[], unsigned max_order, unsigned total_samples, unsigned overhead_bits_per_order)
-{
- unsigned order, index, best_index; /* 'index' the index into lpc_error; index==order-1 since lpc_error[0] is for order==1, lpc_error[1] is for order==2, etc */
- FLAC__double bits, best_bits, error_scale;
-
- FLAC__ASSERT(max_order > 0);
- FLAC__ASSERT(total_samples > 0);
-
- error_scale = 0.5 * M_LN2 * M_LN2 / (FLAC__double)total_samples;
-
- best_index = 0;
- best_bits = (unsigned)(-1);
-
- for(index = 0, order = 1; index < max_order; index++, order++) {
- bits = FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error[index], error_scale) * (FLAC__double)(total_samples - order) + (FLAC__double)(order * overhead_bits_per_order);
- if(bits < best_bits) {
- best_index = index;
- best_bits = bits;
- }
- }
-
- return best_index+1; /* +1 since index of lpc_error[] is order-1 */
-}
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/src/lib/libflac/libFLAC/md5.c b/src/lib/libflac/libFLAC/md5.c
deleted file mode 100644
index 8e9b39fe127..00000000000
--- a/src/lib/libflac/libFLAC/md5.c
+++ /dev/null
@@ -1,424 +0,0 @@
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcpy() */
-
-#include "private/md5.h"
-#include "share/alloc.h"
-
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest. This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- *
- * Changed so as no longer to depend on Colin Plumb's `usual.h' header
- * definitions; now uses stuff from dpkg's config.h.
- * - Ian Jackson <ijackson@nyx.cs.du.edu>.
- * Still in the public domain.
- *
- * Josh Coalson: made some changes to integrate with libFLAC.
- * Still in the public domain.
- */
-
-/* The four core functions - F1 is optimized somewhat */
-
-/* #define F1(x, y, z) (x & y | ~x & z) */
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-/* This is the central step in the MD5 algorithm. */
-#define MD5STEP(f,w,x,y,z,in,s) \
- (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x)
-
-/*
- * The core of the MD5 algorithm, this alters an existing MD5 hash to
- * reflect the addition of 16 longwords of new data. MD5Update blocks
- * the data and converts bytes into longwords for this routine.
- */
-static void FLAC__MD5Transform(FLAC__uint32 buf[4], FLAC__uint32 const in[16])
-{
- register FLAC__uint32 a, b, c, d;
-
- a = buf[0];
- b = buf[1];
- c = buf[2];
- d = buf[3];
-
- MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
- buf[0] += a;
- buf[1] += b;
- buf[2] += c;
- buf[3] += d;
-}
-
-#if WORDS_BIGENDIAN
-//@@@@@@ OPT: use bswap/intrinsics
-static void byteSwap(FLAC__uint32 *buf, unsigned words)
-{
- register FLAC__uint32 x;
- do {
- x = *buf;
- x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff);
- *buf++ = (x >> 16) | (x << 16);
- } while (--words);
-}
-static void byteSwapX16(FLAC__uint32 *buf)
-{
- register FLAC__uint32 x;
-
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf = (x >> 16) | (x << 16);
-}
-#else
-#define byteSwap(buf, words)
-#define byteSwapX16(buf)
-#endif
-
-/*
- * Update context to reflect the concatenation of another buffer full
- * of bytes.
- */
-static void FLAC__MD5Update(FLAC__MD5Context *ctx, FLAC__byte const *buf, unsigned len)
-{
- FLAC__uint32 t;
-
- /* Update byte count */
-
- t = ctx->bytes[0];
- if ((ctx->bytes[0] = t + len) < t)
- ctx->bytes[1]++; /* Carry from low to high */
-
- t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */
- if (t > len) {
- memcpy((FLAC__byte *)ctx->in + 64 - t, buf, len);
- return;
- }
- /* First chunk is an odd size */
- memcpy((FLAC__byte *)ctx->in + 64 - t, buf, t);
- byteSwapX16(ctx->in);
- FLAC__MD5Transform(ctx->buf, ctx->in);
- buf += t;
- len -= t;
-
- /* Process data in 64-byte chunks */
- while (len >= 64) {
- memcpy(ctx->in, buf, 64);
- byteSwapX16(ctx->in);
- FLAC__MD5Transform(ctx->buf, ctx->in);
- buf += 64;
- len -= 64;
- }
-
- /* Handle any remaining bytes of data. */
- memcpy(ctx->in, buf, len);
-}
-
-/*
- * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
- * initialization constants.
- */
-void FLAC__MD5Init(FLAC__MD5Context *ctx)
-{
- ctx->buf[0] = 0x67452301;
- ctx->buf[1] = 0xefcdab89;
- ctx->buf[2] = 0x98badcfe;
- ctx->buf[3] = 0x10325476;
-
- ctx->bytes[0] = 0;
- ctx->bytes[1] = 0;
-
- ctx->internal_buf = 0;
- ctx->capacity = 0;
-}
-
-/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern
- * 1 0* (64-bit count of bits processed, MSB-first)
- */
-void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx)
-{
- int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */
- FLAC__byte *p = (FLAC__byte *)ctx->in + count;
-
- /* Set the first char of padding to 0x80. There is always room. */
- *p++ = 0x80;
-
- /* Bytes of padding needed to make 56 bytes (-8..55) */
- count = 56 - 1 - count;
-
- if (count < 0) { /* Padding forces an extra block */
- memset(p, 0, count + 8);
- byteSwapX16(ctx->in);
- FLAC__MD5Transform(ctx->buf, ctx->in);
- p = (FLAC__byte *)ctx->in;
- count = 56;
- }
- memset(p, 0, count);
- byteSwap(ctx->in, 14);
-
- /* Append length in bits and transform */
- ctx->in[14] = ctx->bytes[0] << 3;
- ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29;
- FLAC__MD5Transform(ctx->buf, ctx->in);
-
- byteSwap(ctx->buf, 4);
- memcpy(digest, ctx->buf, 16);
- if(0 != ctx->internal_buf) {
- free(ctx->internal_buf);
- ctx->internal_buf = 0;
- ctx->capacity = 0;
- }
- memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
-}
-
-/*
- * Convert the incoming audio signal to a byte stream
- */
-static void format_input_(FLAC__byte *buf, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample)
-{
- unsigned channel, sample;
- register FLAC__int32 a_word;
- register FLAC__byte *buf_ = buf;
-
-#if WORDS_BIGENDIAN
-#else
- if(channels == 2 && bytes_per_sample == 2) {
- FLAC__int16 *buf1_ = ((FLAC__int16*)buf_) + 1;
- memcpy(buf_, signal[0], sizeof(FLAC__int32) * samples);
- for(sample = 0; sample < samples; sample++, buf1_+=2)
- *buf1_ = (FLAC__int16)signal[1][sample];
- }
- else if(channels == 1 && bytes_per_sample == 2) {
- FLAC__int16 *buf1_ = (FLAC__int16*)buf_;
- for(sample = 0; sample < samples; sample++)
- *buf1_++ = (FLAC__int16)signal[0][sample];
- }
- else
-#endif
- if(bytes_per_sample == 2) {
- if(channels == 2) {
- for(sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- a_word = signal[1][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- else if(channels == 1) {
- for(sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- else {
- for(sample = 0; sample < samples; sample++) {
- for(channel = 0; channel < channels; channel++) {
- a_word = signal[channel][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- }
- }
- else if(bytes_per_sample == 3) {
- if(channels == 2) {
- for(sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- a_word = signal[1][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- else if(channels == 1) {
- for(sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- else {
- for(sample = 0; sample < samples; sample++) {
- for(channel = 0; channel < channels; channel++) {
- a_word = signal[channel][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- }
- }
- else if(bytes_per_sample == 1) {
- if(channels == 2) {
- for(sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word;
- a_word = signal[1][sample];
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- else if(channels == 1) {
- for(sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- else {
- for(sample = 0; sample < samples; sample++) {
- for(channel = 0; channel < channels; channel++) {
- a_word = signal[channel][sample];
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- }
- }
- else { /* bytes_per_sample == 4, maybe optimize more later */
- for(sample = 0; sample < samples; sample++) {
- for(channel = 0; channel < channels; channel++) {
- a_word = signal[channel][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- }
- }
-}
-
-/*
- * Convert the incoming audio signal to a byte stream and FLAC__MD5Update it.
- */
-FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample)
-{
- const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample;
-
- /* overflow check */
- if((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample)
- return false;
- if((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples)
- return false;
-
- if(ctx->capacity < bytes_needed) {
- FLAC__byte *tmp = (FLAC__byte*)realloc(ctx->internal_buf, bytes_needed);
- if(0 == tmp) {
- free(ctx->internal_buf);
- if(0 == (ctx->internal_buf = (FLAC__byte*)safe_malloc_(bytes_needed)))
- return false;
- }
- ctx->internal_buf = tmp;
- ctx->capacity = bytes_needed;
- }
-
- format_input_(ctx->internal_buf, signal, channels, samples, bytes_per_sample);
-
- FLAC__MD5Update(ctx, ctx->internal_buf, bytes_needed);
-
- return true;
-}
diff --git a/src/lib/libflac/libFLAC/memory.c b/src/lib/libflac/libFLAC/memory.c
deleted file mode 100644
index 48f381b7e8c..00000000000
--- a/src/lib/libflac/libFLAC/memory.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/memory.h"
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-
-void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
-{
- void *x;
-
- FLAC__ASSERT(0 != aligned_address);
-
-#ifdef FLAC__ALIGN_MALLOC_DATA
- /* align on 32-byte (256-bit) boundary */
- x = safe_malloc_add_2op_(bytes, /*+*/31);
-#ifdef SIZEOF_VOIDP
-#if SIZEOF_VOIDP == 4
- /* could do *aligned_address = x + ((unsigned) (32 - (((unsigned)x) & 31))) & 31; */
- *aligned_address = (void*)(((unsigned)x + 31) & -32);
-#elif SIZEOF_VOIDP == 8
- *aligned_address = (void*)(((FLAC__uint64)x + 31) & (FLAC__uint64)(-((FLAC__int64)32)));
-#else
-# error Unsupported sizeof(void*)
-#endif
-#else
- /* there's got to be a better way to do this right for all archs */
- if(sizeof(void*) == sizeof(unsigned))
- *aligned_address = (void*)(((unsigned)x + 31) & -32);
- else if(sizeof(void*) == sizeof(FLAC__uint64))
- *aligned_address = (void*)(((FLAC__uint64)x + 31) & (FLAC__uint64)(-((FLAC__int64)32)));
- else
- return 0;
-#endif
-#else
- x = safe_malloc_(bytes);
- *aligned_address = x;
-#endif
- return x;
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer)
-{
- FLAC__int32 *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__int32 *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = (FLAC__int32*)FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-
-FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer)
-{
- FLAC__uint32 *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__uint32 *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = (FLAC__uint32*)FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer)
-{
- FLAC__uint64 *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__uint64 *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = (FLAC__uint64*)FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, unsigned **unaligned_pointer, unsigned **aligned_pointer)
-{
- unsigned *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- unsigned *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = (unsigned*)FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer)
-{
- FLAC__real *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__real *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = (FLAC__real*)FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-#endif
diff --git a/src/lib/libflac/libFLAC/metadata_iterators.c b/src/lib/libflac/libFLAC/metadata_iterators.c
deleted file mode 100644
index f24edc27631..00000000000
--- a/src/lib/libflac/libFLAC/metadata_iterators.c
+++ /dev/null
@@ -1,3363 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
-#if defined __BORLANDC__
-#include <utime.h> /* for utime() */
-#else
-#include <sys/utime.h> /* for utime() */
-#endif
-#include <io.h> /* for chmod() */
-#include <sys/types.h> /* for off_t */
-#if _MSC_VER <= 1600 || defined __BORLANDC__ /* @@@ [2G limit] */
-#define fseeko fseek
-#define ftello ftell
-#endif
-#else
-#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
-#include <utime.h> /* for utime() */
-#include <unistd.h> /* for chown(), unlink() */
-#endif
-#include <sys/stat.h> /* for stat(), maybe chmod() */
-
-#include "private/metadata.h"
-
-#include "FLAC/assert.h"
-#include "FLAC/stream_decoder.h"
-#include "share/alloc.h"
-
-#ifdef max
-#undef max
-#endif
-#define max(a,b) ((a)>(b)?(a):(b))
-#ifdef min
-#undef min
-#endif
-#define min(a,b) ((a)<(b)?(a):(b))
-
-
-/****************************************************************************
- *
- * Local function declarations
- *
- ***************************************************************************/
-
-static void pack_uint32_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes);
-static void pack_uint32_little_endian_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes);
-static void pack_uint64_(FLAC__uint64 val, FLAC__byte *b, unsigned bytes);
-static FLAC__uint32 unpack_uint32_(FLAC__byte *b, unsigned bytes);
-static FLAC__uint32 unpack_uint32_little_endian_(FLAC__byte *b, unsigned bytes);
-static FLAC__uint64 unpack_uint64_(FLAC__byte *b, unsigned bytes);
-
-static FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator);
-static FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block);
-static FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, unsigned *length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, unsigned block_length);
-
-static FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block);
-static FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, unsigned block_length);
-static FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, unsigned block_length);
-static FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block);
-static FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block);
-static FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block);
-static FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block);
-static FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, unsigned block_length);
-
-static FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, unsigned padding_length, FLAC__bool padding_is_last);
-static FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append);
-
-static void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator);
-static FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator);
-
-static unsigned seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb);
-static unsigned seek_to_first_metadata_block_(FILE *f);
-
-static FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append);
-static FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, off_t fixup_is_last_flag_offset, FLAC__bool backup);
-
-static FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status);
-
-static FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
-static void cleanup_tempfile_(FILE **tempfile, char **tempfilename);
-
-static FLAC__bool get_file_stats_(const char *filename, struct stat *stats);
-static void set_file_stats_(const char *filename, struct stat *stats);
-
-static int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence);
-static FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle);
-
-static FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status);
-
-
-#ifdef FLAC__VALGRIND_TESTING
-static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
-{
- size_t ret = fwrite(ptr, size, nmemb, stream);
- if(!ferror(stream))
- fflush(stream);
- return ret;
-}
-#else
-#define local__fwrite fwrite
-#endif
-
-/****************************************************************************
- *
- * Level 0 implementation
- *
- ***************************************************************************/
-
-static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-typedef struct {
- FLAC__bool got_error;
- FLAC__StreamMetadata *object;
-} level0_client_data;
-
-static FLAC__StreamMetadata *get_one_metadata_block_(const char *filename, FLAC__MetadataType type)
-{
- level0_client_data cd;
- FLAC__StreamDecoder *decoder;
-
- FLAC__ASSERT(0 != filename);
-
- cd.got_error = false;
- cd.object = 0;
-
- decoder = FLAC__stream_decoder_new();
-
- if(0 == decoder)
- return 0;
-
- FLAC__stream_decoder_set_md5_checking(decoder, false);
- FLAC__stream_decoder_set_metadata_ignore_all(decoder);
- FLAC__stream_decoder_set_metadata_respond(decoder, type);
-
- if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &cd) != FLAC__STREAM_DECODER_INIT_STATUS_OK || cd.got_error) {
- (void)FLAC__stream_decoder_finish(decoder);
- FLAC__stream_decoder_delete(decoder);
- return 0;
- }
-
- if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder) || cd.got_error) {
- (void)FLAC__stream_decoder_finish(decoder);
- FLAC__stream_decoder_delete(decoder);
- if(0 != cd.object)
- FLAC__metadata_object_delete(cd.object);
- return 0;
- }
-
- (void)FLAC__stream_decoder_finish(decoder);
- FLAC__stream_decoder_delete(decoder);
-
- return cd.object;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo)
-{
- FLAC__StreamMetadata *object;
-
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != streaminfo);
-
- object = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_STREAMINFO);
-
- if (object) {
- /* can just copy the contents since STREAMINFO has no internal structure */
- *streaminfo = *object;
- FLAC__metadata_object_delete(object);
- return true;
- }
- else {
- return false;
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != tags);
-
- *tags = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- return 0 != *tags;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != cuesheet);
-
- *cuesheet = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_CUESHEET);
-
- return 0 != *cuesheet;
-}
-
-FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- (void)decoder, (void)frame, (void)buffer, (void)client_data;
-
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
-}
-
-void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- level0_client_data *cd = (level0_client_data *)client_data;
- (void)decoder;
-
- /*
- * we assume we only get here when the one metadata block we were
- * looking for was passed to us
- */
- if(!cd->got_error && 0 == cd->object) {
- if(0 == (cd->object = FLAC__metadata_object_clone(metadata)))
- cd->got_error = true;
- }
-}
-
-void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- level0_client_data *cd = (level0_client_data *)client_data;
- (void)decoder;
-
- if(status != FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC)
- cd->got_error = true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors)
-{
- FLAC__Metadata_SimpleIterator *it;
- FLAC__uint64 max_area_seen = 0;
- FLAC__uint64 max_depth_seen = 0;
-
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != picture);
-
- *picture = 0;
-
- it = FLAC__metadata_simple_iterator_new();
- if(0 == it)
- return false;
- if(!FLAC__metadata_simple_iterator_init(it, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) {
- FLAC__metadata_simple_iterator_delete(it);
- return false;
- }
- do {
- if(FLAC__metadata_simple_iterator_get_block_type(it) == FLAC__METADATA_TYPE_PICTURE) {
- FLAC__StreamMetadata *obj = FLAC__metadata_simple_iterator_get_block(it);
- FLAC__uint64 area = (FLAC__uint64)obj->data.picture.width * (FLAC__uint64)obj->data.picture.height;
- /* check constraints */
- if(
- (type == (FLAC__StreamMetadata_Picture_Type)(-1) || type == obj->data.picture.type) &&
- (mime_type == 0 || !strcmp(mime_type, obj->data.picture.mime_type)) &&
- (description == 0 || !strcmp((const char *)description, (const char *)obj->data.picture.description)) &&
- obj->data.picture.width <= max_width &&
- obj->data.picture.height <= max_height &&
- obj->data.picture.depth <= max_depth &&
- obj->data.picture.colors <= max_colors &&
- (area > max_area_seen || (area == max_area_seen && obj->data.picture.depth > max_depth_seen))
- ) {
- if(*picture)
- FLAC__metadata_object_delete(*picture);
- *picture = obj;
- max_area_seen = area;
- max_depth_seen = obj->data.picture.depth;
- }
- else {
- FLAC__metadata_object_delete(obj);
- }
- }
- } while(FLAC__metadata_simple_iterator_next(it));
-
- FLAC__metadata_simple_iterator_delete(it);
-
- return (0 != *picture);
-}
-
-
-/****************************************************************************
- *
- * Level 1 implementation
- *
- ***************************************************************************/
-
-#define SIMPLE_ITERATOR_MAX_PUSH_DEPTH (1+4)
-/* 1 for initial offset, +4 for our own personal use */
-
-struct FLAC__Metadata_SimpleIterator {
- FILE *file;
- char *filename, *tempfile_path_prefix;
- struct stat stats;
- FLAC__bool has_stats;
- FLAC__bool is_writable;
- FLAC__Metadata_SimpleIteratorStatus status;
- off_t offset[SIMPLE_ITERATOR_MAX_PUSH_DEPTH];
- off_t first_offset; /* this is the offset to the STREAMINFO block */
- unsigned depth;
- /* this is the metadata block header of the current block we are pointing to: */
- FLAC__bool is_last;
- FLAC__MetadataType type;
- unsigned length;
-};
-
-FLAC_API const char * const FLAC__Metadata_SimpleIteratorStatusString[] = {
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR"
-};
-
-
-FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void)
-{
- FLAC__Metadata_SimpleIterator *iterator = (FLAC__Metadata_SimpleIterator*)calloc(1, sizeof(FLAC__Metadata_SimpleIterator));
-
- if(0 != iterator) {
- iterator->file = 0;
- iterator->filename = 0;
- iterator->tempfile_path_prefix = 0;
- iterator->has_stats = false;
- iterator->is_writable = false;
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
- iterator->first_offset = iterator->offset[0] = -1;
- iterator->depth = 0;
- }
-
- return iterator;
-}
-
-static void simple_iterator_free_guts_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- if(0 != iterator->file) {
- fclose(iterator->file);
- iterator->file = 0;
- if(iterator->has_stats)
- set_file_stats_(iterator->filename, &iterator->stats);
- }
- if(0 != iterator->filename) {
- free(iterator->filename);
- iterator->filename = 0;
- }
- if(0 != iterator->tempfile_path_prefix) {
- free(iterator->tempfile_path_prefix);
- iterator->tempfile_path_prefix = 0;
- }
-}
-
-FLAC_API void FLAC__metadata_simple_iterator_delete(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- simple_iterator_free_guts_(iterator);
- free(iterator);
-}
-
-FLAC_API FLAC__Metadata_SimpleIteratorStatus FLAC__metadata_simple_iterator_status(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__Metadata_SimpleIteratorStatus status;
-
- FLAC__ASSERT(0 != iterator);
-
- status = iterator->status;
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
- return status;
-}
-
-static FLAC__bool simple_iterator_prime_input_(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool read_only)
-{
- unsigned ret;
-
- FLAC__ASSERT(0 != iterator);
-
- if(read_only || 0 == (iterator->file = fopen(iterator->filename, "r+b"))) {
- iterator->is_writable = false;
- if(read_only || errno == EACCES) {
- if(0 == (iterator->file = fopen(iterator->filename, "rb"))) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- }
- else {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- }
- else {
- iterator->is_writable = true;
- }
-
- ret = seek_to_first_metadata_block_(iterator->file);
- switch(ret) {
- case 0:
- iterator->depth = 0;
- iterator->first_offset = iterator->offset[iterator->depth] = ftello(iterator->file);
- return read_metadata_block_header_(iterator);
- case 1:
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- case 2:
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- case 3:
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE;
- return false;
- default:
- FLAC__ASSERT(0);
- return false;
- }
-}
-
-#if 0
-@@@ If we decide to finish implementing this, put this comment back in metadata.h
-/*
- * The 'tempfile_path_prefix' allows you to specify a directory where
- * tempfiles should go. Remember that if your metadata edits cause the
- * FLAC file to grow, the entire file will have to be rewritten. If
- * 'tempfile_path_prefix' is NULL, the temp file will be written in the
- * same directory as the original FLAC file. This makes replacing the
- * original with the tempfile fast but requires extra space in the same
- * partition for the tempfile. If space is a problem, you can pass a
- * directory name belonging to a different partition in
- * 'tempfile_path_prefix'. Note that you should use the forward slash
- * '/' as the directory separator. A trailing slash is not needed; it
- * will be added automatically.
- */
-FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool preserve_file_stats, const char *tempfile_path_prefix);
-#endif
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool read_only, FLAC__bool preserve_file_stats)
-{
- const char *tempfile_path_prefix = 0; /*@@@ search for comments near 'rename(...)' for what it will take to finish implementing this */
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != filename);
-
- simple_iterator_free_guts_(iterator);
-
- if(!read_only && preserve_file_stats)
- iterator->has_stats = get_file_stats_(filename, &iterator->stats);
-
- if(0 == (iterator->filename = strdup(filename))) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(0 != tempfile_path_prefix && 0 == (iterator->tempfile_path_prefix = strdup(tempfile_path_prefix))) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- return simple_iterator_prime_input_(iterator, read_only);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_writable(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->is_writable;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(iterator->is_last)
- return false;
-
- if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- iterator->offset[iterator->depth] = ftello(iterator->file);
-
- return read_metadata_block_header_(iterator);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator)
-{
- off_t this_offset;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(iterator->offset[iterator->depth] == iterator->first_offset)
- return false;
-
- if(0 != fseeko(iterator->file, iterator->first_offset, SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- this_offset = iterator->first_offset;
- if(!read_metadata_block_header_(iterator))
- return false;
-
- /* we ignore any error from ftello() and catch it in fseeko() */
- while(ftello(iterator->file) + (off_t)iterator->length < iterator->offset[iterator->depth]) {
- if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- this_offset = ftello(iterator->file);
- if(!read_metadata_block_header_(iterator))
- return false;
- }
-
- iterator->offset[iterator->depth] = this_offset;
-
- return true;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->is_last;
-}
-
-/*@@@@add to tests*/
-FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->offset[iterator->depth];
-}
-
-FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->type;
-}
-
-/*@@@@add to tests*/
-FLAC_API unsigned FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->length;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id)
-{
- const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
- FLAC__ASSERT(0 != id);
-
- if(iterator->type != FLAC__METADATA_TYPE_APPLICATION) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
-
- if(fread(id, 1, id_bytes, iterator->file) != id_bytes) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
-
- /* back up */
- if(0 != fseeko(iterator->file, -((int)id_bytes), SEEK_CUR)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__StreamMetadata *block = FLAC__metadata_object_new(iterator->type);
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(0 != block) {
- block->is_last = iterator->is_last;
- block->length = iterator->length;
-
- if(!read_metadata_block_data_(iterator, block)) {
- FLAC__metadata_object_delete(block);
- return 0;
- }
-
- /* back up to the beginning of the block data to stay consistent */
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH, SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- FLAC__metadata_object_delete(block);
- return 0;
- }
- }
- else
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- return block;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
-{
- FLAC__ASSERT_DECLARATION(off_t debug_target_offset = iterator->offset[iterator->depth];)
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
- FLAC__ASSERT(0 != block);
-
- if(!iterator->is_writable) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
- return false;
- }
-
- if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO || block->type == FLAC__METADATA_TYPE_STREAMINFO) {
- if(iterator->type != block->type) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
- }
-
- block->is_last = iterator->is_last;
-
- if(iterator->length == block->length)
- return write_metadata_block_stationary_(iterator, block);
- else if(iterator->length > block->length) {
- if(use_padding && iterator->length >= FLAC__STREAM_METADATA_HEADER_LENGTH + block->length) {
- ret = write_metadata_block_stationary_with_padding_(iterator, block, iterator->length - FLAC__STREAM_METADATA_HEADER_LENGTH - block->length, block->is_last);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- else {
- ret = rewrite_whole_file_(iterator, block, /*append=*/false);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
- else /* iterator->length < block->length */ {
- unsigned padding_leftover = 0;
- FLAC__bool padding_is_last = false;
- if(use_padding) {
- /* first see if we can even use padding */
- if(iterator->is_last) {
- use_padding = false;
- }
- else {
- const unsigned extra_padding_bytes_required = block->length - iterator->length;
- simple_iterator_push_(iterator);
- if(!FLAC__metadata_simple_iterator_next(iterator)) {
- (void)simple_iterator_pop_(iterator);
- return false;
- }
- if(iterator->type != FLAC__METADATA_TYPE_PADDING) {
- use_padding = false;
- }
- else {
- if(FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length == extra_padding_bytes_required) {
- padding_leftover = 0;
- block->is_last = iterator->is_last;
- }
- else if(iterator->length < extra_padding_bytes_required)
- use_padding = false;
- else {
- padding_leftover = FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length - extra_padding_bytes_required;
- padding_is_last = iterator->is_last;
- block->is_last = false;
- }
- }
- if(!simple_iterator_pop_(iterator))
- return false;
- }
- }
- if(use_padding) {
- if(padding_leftover == 0) {
- ret = write_metadata_block_stationary_(iterator, block);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- else {
- FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
- ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
- else {
- ret = rewrite_whole_file_(iterator, block, /*append=*/false);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_insert_block_after(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
-{
- unsigned padding_leftover = 0;
- FLAC__bool padding_is_last = false;
-
- FLAC__ASSERT_DECLARATION(off_t debug_target_offset = iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length;)
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
- FLAC__ASSERT(0 != block);
-
- if(!iterator->is_writable)
- return false;
-
- if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
-
- block->is_last = iterator->is_last;
-
- if(use_padding) {
- /* first see if we can even use padding */
- if(iterator->is_last) {
- use_padding = false;
- }
- else {
- simple_iterator_push_(iterator);
- if(!FLAC__metadata_simple_iterator_next(iterator)) {
- (void)simple_iterator_pop_(iterator);
- return false;
- }
- if(iterator->type != FLAC__METADATA_TYPE_PADDING) {
- use_padding = false;
- }
- else {
- if(iterator->length == block->length) {
- padding_leftover = 0;
- block->is_last = iterator->is_last;
- }
- else if(iterator->length < FLAC__STREAM_METADATA_HEADER_LENGTH + block->length)
- use_padding = false;
- else {
- padding_leftover = iterator->length - block->length;
- padding_is_last = iterator->is_last;
- block->is_last = false;
- }
- }
- if(!simple_iterator_pop_(iterator))
- return false;
- }
- }
- if(use_padding) {
- /* move to the next block, which is suitable padding */
- if(!FLAC__metadata_simple_iterator_next(iterator))
- return false;
- if(padding_leftover == 0) {
- ret = write_metadata_block_stationary_(iterator, block);
- FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- else {
- FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
- ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
- FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
- else {
- ret = rewrite_whole_file_(iterator, block, /*append=*/true);
- FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding)
-{
- FLAC__ASSERT_DECLARATION(off_t debug_target_offset = iterator->offset[iterator->depth];)
- FLAC__bool ret;
-
- if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
-
- if(use_padding) {
- FLAC__StreamMetadata *padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
- if(0 == padding) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- padding->length = iterator->length;
- if(!FLAC__metadata_simple_iterator_set_block(iterator, padding, false)) {
- FLAC__metadata_object_delete(padding);
- return false;
- }
- FLAC__metadata_object_delete(padding);
- if(!FLAC__metadata_simple_iterator_prev(iterator))
- return false;
- FLAC__ASSERT(iterator->offset[iterator->depth] + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (off_t)iterator->length == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) + (off_t)iterator->length == debug_target_offset);
- return true;
- }
- else {
- ret = rewrite_whole_file_(iterator, 0, /*append=*/false);
- FLAC__ASSERT(iterator->offset[iterator->depth] + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (off_t)iterator->length == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) + (off_t)iterator->length == debug_target_offset);
- return ret;
- }
-}
-
-
-
-/****************************************************************************
- *
- * Level 2 implementation
- *
- ***************************************************************************/
-
-
-typedef struct FLAC__Metadata_Node {
- FLAC__StreamMetadata *data;
- struct FLAC__Metadata_Node *prev, *next;
-} FLAC__Metadata_Node;
-
-struct FLAC__Metadata_Chain {
- char *filename; /* will be NULL if using callbacks */
- FLAC__bool is_ogg;
- FLAC__Metadata_Node *head;
- FLAC__Metadata_Node *tail;
- unsigned nodes;
- FLAC__Metadata_ChainStatus status;
- off_t first_offset, last_offset;
- /*
- * This is the length of the chain initially read from the FLAC file.
- * it is used to compare against the current length to decide whether
- * or not the whole file has to be rewritten.
- */
- off_t initial_length;
- /* @@@ hacky, these are currently only needed by ogg reader */
- FLAC__IOHandle handle;
- FLAC__IOCallback_Read read_cb;
-};
-
-struct FLAC__Metadata_Iterator {
- FLAC__Metadata_Chain *chain;
- FLAC__Metadata_Node *current;
-};
-
-FLAC_API const char * const FLAC__Metadata_ChainStatusString[] = {
- "FLAC__METADATA_CHAIN_STATUS_OK",
- "FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT",
- "FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE",
- "FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE",
- "FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE",
- "FLAC__METADATA_CHAIN_STATUS_BAD_METADATA",
- "FLAC__METADATA_CHAIN_STATUS_READ_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS",
- "FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH",
- "FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL"
-};
-
-
-static FLAC__Metadata_Node *node_new_(void)
-{
- return (FLAC__Metadata_Node*)calloc(1, sizeof(FLAC__Metadata_Node));
-}
-
-static void node_delete_(FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != node);
- if(0 != node->data)
- FLAC__metadata_object_delete(node->data);
- free(node);
-}
-
-static void chain_init_(FLAC__Metadata_Chain *chain)
-{
- FLAC__ASSERT(0 != chain);
-
- chain->filename = 0;
- chain->is_ogg = false;
- chain->head = chain->tail = 0;
- chain->nodes = 0;
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- chain->initial_length = 0;
- chain->read_cb = 0;
-}
-
-static void chain_clear_(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node, *next;
-
- FLAC__ASSERT(0 != chain);
-
- for(node = chain->head; node; ) {
- next = node->next;
- node_delete_(node);
- node = next;
- }
-
- if(0 != chain->filename)
- free(chain->filename);
-
- chain_init_(chain);
-}
-
-static void chain_append_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != node);
- FLAC__ASSERT(0 != node->data);
-
- node->next = node->prev = 0;
- node->data->is_last = true;
- if(0 != chain->tail)
- chain->tail->data->is_last = false;
-
- if(0 == chain->head)
- chain->head = node;
- else {
- FLAC__ASSERT(0 != chain->tail);
- chain->tail->next = node;
- node->prev = chain->tail;
- }
- chain->tail = node;
- chain->nodes++;
-}
-
-static void chain_remove_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != node);
-
- if(node == chain->head)
- chain->head = node->next;
- else
- node->prev->next = node->next;
-
- if(node == chain->tail)
- chain->tail = node->prev;
- else
- node->next->prev = node->prev;
-
- if(0 != chain->tail)
- chain->tail->data->is_last = true;
-
- chain->nodes--;
-}
-
-static void chain_delete_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- chain_remove_node_(chain, node);
- node_delete_(node);
-}
-
-static off_t chain_calculate_length_(FLAC__Metadata_Chain *chain)
-{
- const FLAC__Metadata_Node *node;
- off_t length = 0;
- for(node = chain->head; node; node = node->next)
- length += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- return length;
-}
-
-static void iterator_insert_node_(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != node);
- FLAC__ASSERT(0 != node->data);
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != iterator->chain);
- FLAC__ASSERT(0 != iterator->chain->head);
- FLAC__ASSERT(0 != iterator->chain->tail);
-
- node->data->is_last = false;
-
- node->prev = iterator->current->prev;
- node->next = iterator->current;
-
- if(0 == node->prev)
- iterator->chain->head = node;
- else
- node->prev->next = node;
-
- iterator->current->prev = node;
-
- iterator->chain->nodes++;
-}
-
-static void iterator_insert_node_after_(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != node);
- FLAC__ASSERT(0 != node->data);
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != iterator->chain);
- FLAC__ASSERT(0 != iterator->chain->head);
- FLAC__ASSERT(0 != iterator->chain->tail);
-
- iterator->current->data->is_last = false;
-
- node->prev = iterator->current;
- node->next = iterator->current->next;
-
- if(0 == node->next)
- iterator->chain->tail = node;
- else
- node->next->prev = node;
-
- node->prev->next = node;
-
- iterator->chain->tail->data->is_last = true;
-
- iterator->chain->nodes++;
-}
-
-/* return true iff node and node->next are both padding */
-static FLAC__bool chain_merge_adjacent_padding_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- if(node->data->type == FLAC__METADATA_TYPE_PADDING && 0 != node->next && node->next->data->type == FLAC__METADATA_TYPE_PADDING) {
- const unsigned growth = FLAC__STREAM_METADATA_HEADER_LENGTH + node->next->data->length;
- node->data->length += growth;
-
- chain_delete_node_(chain, node->next);
- return true;
- }
- else
- return false;
-}
-
-/* Returns the new length of the chain, or 0 if there was an error. */
-/* WATCHOUT: This can get called multiple times before a write, so
- * it should still work when this happens.
- */
-/* WATCHOUT: Make sure to also update the logic in
- * FLAC__metadata_chain_check_if_tempfile_needed() if the logic here changes.
- */
-static off_t chain_prepare_for_write_(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
-{
- off_t current_length = chain_calculate_length_(chain);
-
- if(use_padding) {
- /* if the metadata shrank and the last block is padding, we just extend the last padding block */
- if(current_length < chain->initial_length && chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- const off_t delta = chain->initial_length - current_length;
- chain->tail->data->length += delta;
- current_length += delta;
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- /* if the metadata shrank more than 4 bytes then there's room to add another padding block */
- else if(current_length + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
- FLAC__StreamMetadata *padding;
- FLAC__Metadata_Node *node;
- if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- padding->length = chain->initial_length - (FLAC__STREAM_METADATA_HEADER_LENGTH + current_length);
- if(0 == (node = node_new_())) {
- FLAC__metadata_object_delete(padding);
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- node->data = padding;
- chain_append_node_(chain, node);
- current_length = chain_calculate_length_(chain);
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- /* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
- else if(current_length > chain->initial_length) {
- const off_t delta = current_length - chain->initial_length;
- if(chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- /* if the delta is exactly the size of the last padding block, remove the padding block */
- if((off_t)chain->tail->data->length + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
- chain_delete_node_(chain, chain->tail);
- current_length = chain_calculate_length_(chain);
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- /* if there is at least 'delta' bytes of padding, trim the padding down */
- else if((off_t)chain->tail->data->length >= delta) {
- chain->tail->data->length -= delta;
- current_length -= delta;
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- }
- }
- }
-
- return current_length;
-}
-
-static FLAC__bool chain_read_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Tell tell_cb)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
-
- /* we assume we're already at the beginning of the file */
-
- switch(seek_to_first_metadata_block_cb_(handle, read_cb, seek_cb)) {
- case 0:
- break;
- case 1:
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- case 2:
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- case 3:
- chain->status = FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
- return false;
- default:
- FLAC__ASSERT(0);
- return false;
- }
-
- {
- FLAC__int64 pos = tell_cb(handle);
- if(pos < 0) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- }
- chain->first_offset = (off_t)pos;
- }
-
- {
- FLAC__bool is_last;
- FLAC__MetadataType type;
- unsigned length;
-
- do {
- node = node_new_();
- if(0 == node) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- if(!read_metadata_block_header_cb_(handle, read_cb, &is_last, &type, &length)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- }
-
- node->data = FLAC__metadata_object_new(type);
- if(0 == node->data) {
- node_delete_(node);
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- node->data->is_last = is_last;
- node->data->length = length;
-
- chain->status = get_equivalent_status_(read_metadata_block_data_cb_(handle, read_cb, seek_cb, node->data));
- if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
- node_delete_(node);
- return false;
- }
- chain_append_node_(chain, node);
- } while(!is_last);
- }
-
- {
- FLAC__int64 pos = tell_cb(handle);
- if(pos < 0) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- }
- chain->last_offset = (off_t)pos;
- }
-
- chain->initial_length = chain_calculate_length_(chain);
-
- return true;
-}
-
-static FLAC__StreamDecoderReadStatus chain_read_ogg_read_cb_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
- (void)decoder;
- if(*bytes > 0 && chain->status == FLAC__METADATA_CHAIN_STATUS_OK) {
- *bytes = chain->read_cb(buffer, sizeof(FLAC__byte), *bytes, chain->handle);
- if(*bytes == 0)
- return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- else
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- }
- else
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
-}
-
-static FLAC__StreamDecoderWriteStatus chain_read_ogg_write_cb_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- (void)decoder, (void)frame, (void)buffer, (void)client_data;
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
-}
-
-static void chain_read_ogg_metadata_cb_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
- FLAC__Metadata_Node *node;
-
- (void)decoder;
-
- node = node_new_();
- if(0 == node) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return;
- }
-
- node->data = FLAC__metadata_object_clone(metadata);
- if(0 == node->data) {
- node_delete_(node);
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return;
- }
-
- chain_append_node_(chain, node);
-}
-
-static void chain_read_ogg_error_cb_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
- (void)decoder, (void)status;
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
-}
-
-static FLAC__bool chain_read_ogg_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb)
-{
- FLAC__StreamDecoder *decoder;
-
- FLAC__ASSERT(0 != chain);
-
- /* we assume we're already at the beginning of the file */
-
- chain->handle = handle;
- chain->read_cb = read_cb;
- if(0 == (decoder = FLAC__stream_decoder_new())) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- FLAC__stream_decoder_set_metadata_respond_all(decoder);
- if(FLAC__stream_decoder_init_ogg_stream(decoder, chain_read_ogg_read_cb_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, chain_read_ogg_write_cb_, chain_read_ogg_metadata_cb_, chain_read_ogg_error_cb_, chain) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
- FLAC__stream_decoder_delete(decoder);
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
- return false;
- }
-
- chain->first_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
-
- if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder))
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
- if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
- FLAC__stream_decoder_delete(decoder);
- return false;
- }
-
- FLAC__stream_decoder_delete(decoder);
-
- chain->last_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
-
- chain->initial_length = chain_calculate_length_(chain);
-
- return true;
-}
-
-static FLAC__bool chain_rewrite_metadata_in_place_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, FLAC__IOCallback_Seek seek_cb)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->head);
-
- if(0 != seek_cb(handle, chain->first_offset, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_cb_(handle, write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- if(!write_metadata_block_data_cb_(handle, write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
-
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- return true;
-}
-
-static FLAC__bool chain_rewrite_metadata_in_place_(FLAC__Metadata_Chain *chain)
-{
- FILE *file;
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != chain->filename);
-
- if(0 == (file = fopen(chain->filename, "r+b"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
-
- /* chain_rewrite_metadata_in_place_cb_() sets chain->status for us */
- ret = chain_rewrite_metadata_in_place_cb_(chain, (FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, fseek_wrapper_);
-
- fclose(file);
-
- return ret;
-}
-
-static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *tempfile_path_prefix)
-{
- FILE *f, *tempfile;
- char *tempfilename;
- FLAC__Metadata_SimpleIteratorStatus status;
- const FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->filename);
- FLAC__ASSERT(0 != chain->head);
-
- /* copy the file prefix (data up to first metadata block */
- if(0 == (f = fopen(chain->filename, "rb"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- if(!open_tempfile_(chain->filename, tempfile_path_prefix, &tempfile, &tempfilename, &status)) {
- chain->status = get_equivalent_status_(status);
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
- if(!copy_n_bytes_from_file_(f, tempfile, chain->first_offset, &status)) {
- chain->status = get_equivalent_status_(status);
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
-
- /* write the metadata */
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_(tempfile, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
- if(!write_metadata_block_data_(tempfile, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
- }
- /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
-
- /* copy the file postfix (everything after the metadata) */
- if(0 != fseeko(f, chain->last_offset, SEEK_SET)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
- if(!copy_remaining_bytes_from_file_(f, tempfile, &status)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- chain->status = get_equivalent_status_(status);
- return false;
- }
-
- /* move the tempfile on top of the original */
- (void)fclose(f);
- if(!transport_tempfile_(chain->filename, &tempfile, &tempfilename, &status))
- return false;
-
- return true;
-}
-
-/* assumes 'handle' is already at beginning of file */
-static FLAC__bool chain_rewrite_file_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb)
-{
- FLAC__Metadata_SimpleIteratorStatus status;
- const FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 == chain->filename);
- FLAC__ASSERT(0 != chain->head);
-
- /* copy the file prefix (data up to first metadata block */
- if(!copy_n_bytes_from_file_cb_(handle, read_cb, temp_handle, temp_write_cb, chain->first_offset, &status)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
-
- /* write the metadata */
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_cb_(temp_handle, temp_write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- if(!write_metadata_block_data_cb_(temp_handle, temp_write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- }
- /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
-
- /* copy the file postfix (everything after the metadata) */
- if(0 != seek_cb(handle, chain->last_offset, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
- if(!copy_remaining_bytes_from_file_cb_(handle, read_cb, eof_cb, temp_handle, temp_write_cb, &status)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
-
- return true;
-}
-
-FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)calloc(1, sizeof(FLAC__Metadata_Chain));
-
- if(0 != chain)
- chain_init_(chain);
-
- return chain;
-}
-
-FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain)
-{
- FLAC__ASSERT(0 != chain);
-
- chain_clear_(chain);
-
- free(chain);
-}
-
-FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_ChainStatus status;
-
- FLAC__ASSERT(0 != chain);
-
- status = chain->status;
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- return status;
-}
-
-static FLAC__bool chain_read_(FLAC__Metadata_Chain *chain, const char *filename, FLAC__bool is_ogg)
-{
- FILE *file;
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != filename);
-
- chain_clear_(chain);
-
- if(0 == (chain->filename = strdup(filename))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- chain->is_ogg = is_ogg;
-
- if(0 == (file = fopen(filename, "rb"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
-
- /* the function also sets chain->status for us */
- ret = is_ogg?
- chain_read_ogg_cb_(chain, file, (FLAC__IOCallback_Read)fread) :
- chain_read_cb_(chain, file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, ftell_wrapper_)
- ;
-
- fclose(file);
-
- return ret;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename)
-{
- return chain_read_(chain, filename, /*is_ogg=*/false);
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename)
-{
- return chain_read_(chain, filename, /*is_ogg=*/true);
-}
-
-static FLAC__bool chain_read_with_callbacks_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__bool is_ogg)
-{
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != chain);
-
- chain_clear_(chain);
-
- if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.tell) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
-
- chain->is_ogg = is_ogg;
-
- /* rewind */
- if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- /* the function also sets chain->status for us */
- ret = is_ogg?
- chain_read_ogg_cb_(chain, handle, callbacks.read) :
- chain_read_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.tell)
- ;
-
- return ret;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
-{
- return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/false);
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
-{
- return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/true);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
-{
- /* This does all the same checks that are in chain_prepare_for_write_()
- * but doesn't actually alter the chain. Make sure to update the logic
- * here if chain_prepare_for_write_() changes.
- */
- const off_t current_length = chain_calculate_length_(chain);
-
- FLAC__ASSERT(0 != chain);
-
- if(use_padding) {
- /* if the metadata shrank and the last block is padding, we just extend the last padding block */
- if(current_length < chain->initial_length && chain->tail->data->type == FLAC__METADATA_TYPE_PADDING)
- return false;
- /* if the metadata shrank more than 4 bytes then there's room to add another padding block */
- else if(current_length + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length)
- return false;
- /* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
- else if(current_length > chain->initial_length) {
- const off_t delta = current_length - chain->initial_length;
- if(chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- /* if the delta is exactly the size of the last padding block, remove the padding block */
- if((off_t)chain->tail->data->length + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta)
- return false;
- /* if there is at least 'delta' bytes of padding, trim the padding down */
- else if((off_t)chain->tail->data->length >= delta)
- return false;
- }
- }
- }
-
- return (current_length != chain->initial_length);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats)
-{
- struct stat stats;
- const char *tempfile_path_prefix = 0;
- off_t current_length;
-
- FLAC__ASSERT(0 != chain);
-
- if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- return false;
- }
-
- if (0 == chain->filename) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
- return false;
- }
-
- current_length = chain_prepare_for_write_(chain, use_padding);
-
- /* a return value of 0 means there was an error; chain->status is already set */
- if (0 == current_length)
- return false;
-
- if(preserve_file_stats)
- get_file_stats_(chain->filename, &stats);
-
- if(current_length == chain->initial_length) {
- if(!chain_rewrite_metadata_in_place_(chain))
- return false;
- }
- else {
- if(!chain_rewrite_file_(chain, tempfile_path_prefix))
- return false;
-
- /* recompute lengths and offsets */
- {
- const FLAC__Metadata_Node *node;
- chain->initial_length = current_length;
- chain->last_offset = chain->first_offset;
- for(node = chain->head; node; node = node->next)
- chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- }
- }
-
- if(preserve_file_stats)
- set_file_stats_(chain->filename, &stats);
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
-{
- off_t current_length;
-
- FLAC__ASSERT(0 != chain);
-
- if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- return false;
- }
-
- if (0 != chain->filename) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
- return false;
- }
-
- if (0 == callbacks.write || 0 == callbacks.seek) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
-
- if (FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
- return false;
- }
-
- current_length = chain_prepare_for_write_(chain, use_padding);
-
- /* a return value of 0 means there was an error; chain->status is already set */
- if (0 == current_length)
- return false;
-
- FLAC__ASSERT(current_length == chain->initial_length);
-
- return chain_rewrite_metadata_in_place_cb_(chain, handle, callbacks.write, callbacks.seek);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks)
-{
- off_t current_length;
-
- FLAC__ASSERT(0 != chain);
-
- if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- return false;
- }
-
- if (0 != chain->filename) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
- return false;
- }
-
- if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.eof) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
- if (0 == temp_callbacks.write) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
-
- if (!FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
- return false;
- }
-
- current_length = chain_prepare_for_write_(chain, use_padding);
-
- /* a return value of 0 means there was an error; chain->status is already set */
- if (0 == current_length)
- return false;
-
- FLAC__ASSERT(current_length != chain->initial_length);
-
- /* rewind */
- if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- if(!chain_rewrite_file_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.eof, temp_handle, temp_callbacks.write))
- return false;
-
- /* recompute lengths and offsets */
- {
- const FLAC__Metadata_Node *node;
- chain->initial_length = current_length;
- chain->last_offset = chain->first_offset;
- for(node = chain->head; node; node = node->next)
- chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- }
-
- return true;
-}
-
-FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
-
- for(node = chain->head; node; ) {
- if(!chain_merge_adjacent_padding_(chain, node))
- node = node->next;
- }
-}
-
-FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node, *save;
- unsigned i;
-
- FLAC__ASSERT(0 != chain);
-
- /*
- * Don't try and be too smart... this simple algo is good enough for
- * the small number of nodes that we deal with.
- */
- for(i = 0, node = chain->head; i < chain->nodes; i++) {
- if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
- save = node->next;
- chain_remove_node_(chain, node);
- chain_append_node_(chain, node);
- node = save;
- }
- else {
- node = node->next;
- }
- }
-
- FLAC__metadata_chain_merge_padding(chain);
-}
-
-
-FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void)
-{
- FLAC__Metadata_Iterator *iterator = (FLAC__Metadata_Iterator*)calloc(1, sizeof(FLAC__Metadata_Iterator));
-
- /* calloc() implies:
- iterator->current = 0;
- iterator->chain = 0;
- */
-
- return iterator;
-}
-
-FLAC_API void FLAC__metadata_iterator_delete(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- free(iterator);
-}
-
-FLAC_API void FLAC__metadata_iterator_init(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Chain *chain)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->head);
-
- iterator->chain = chain;
- iterator->current = chain->head;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_next(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- if(0 == iterator->current || 0 == iterator->current->next)
- return false;
-
- iterator->current = iterator->current->next;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_prev(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- if(0 == iterator->current || 0 == iterator->current->prev)
- return false;
-
- iterator->current = iterator->current->prev;
- return true;
-}
-
-FLAC_API FLAC__MetadataType FLAC__metadata_iterator_get_block_type(const FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != iterator->current->data);
-
- return iterator->current->data->type;
-}
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_iterator_get_block(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
-
- return iterator->current->data;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_set_block(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != block);
- return FLAC__metadata_iterator_delete_block(iterator, false) && FLAC__metadata_iterator_insert_block_after(iterator, block);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_delete_block(FLAC__Metadata_Iterator *iterator, FLAC__bool replace_with_padding)
-{
- FLAC__Metadata_Node *save;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
-
- if(0 == iterator->current->prev) {
- FLAC__ASSERT(iterator->current->data->type == FLAC__METADATA_TYPE_STREAMINFO);
- return false;
- }
-
- save = iterator->current->prev;
-
- if(replace_with_padding) {
- FLAC__metadata_object_delete_data(iterator->current->data);
- iterator->current->data->type = FLAC__METADATA_TYPE_PADDING;
- }
- else {
- chain_delete_node_(iterator->chain, iterator->current);
- }
-
- iterator->current = save;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_before(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != block);
-
- if(block->type == FLAC__METADATA_TYPE_STREAMINFO)
- return false;
-
- if(0 == iterator->current->prev) {
- FLAC__ASSERT(iterator->current->data->type == FLAC__METADATA_TYPE_STREAMINFO);
- return false;
- }
-
- if(0 == (node = node_new_()))
- return false;
-
- node->data = block;
- iterator_insert_node_(iterator, node);
- iterator->current = node;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != block);
-
- if(block->type == FLAC__METADATA_TYPE_STREAMINFO)
- return false;
-
- if(0 == (node = node_new_()))
- return false;
-
- node->data = block;
- iterator_insert_node_after_(iterator, node);
- iterator->current = node;
- return true;
-}
-
-
-/****************************************************************************
- *
- * Local function definitions
- *
- ***************************************************************************/
-
-void pack_uint32_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes)
-{
- unsigned i;
-
- b += bytes;
-
- for(i = 0; i < bytes; i++) {
- *(--b) = (FLAC__byte)(val & 0xff);
- val >>= 8;
- }
-}
-
-void pack_uint32_little_endian_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes)
-{
- unsigned i;
-
- for(i = 0; i < bytes; i++) {
- *(b++) = (FLAC__byte)(val & 0xff);
- val >>= 8;
- }
-}
-
-void pack_uint64_(FLAC__uint64 val, FLAC__byte *b, unsigned bytes)
-{
- unsigned i;
-
- b += bytes;
-
- for(i = 0; i < bytes; i++) {
- *(--b) = (FLAC__byte)(val & 0xff);
- val >>= 8;
- }
-}
-
-FLAC__uint32 unpack_uint32_(FLAC__byte *b, unsigned bytes)
-{
- FLAC__uint32 ret = 0;
- unsigned i;
-
- for(i = 0; i < bytes; i++)
- ret = (ret << 8) | (FLAC__uint32)(*b++);
-
- return ret;
-}
-
-FLAC__uint32 unpack_uint32_little_endian_(FLAC__byte *b, unsigned bytes)
-{
- FLAC__uint32 ret = 0;
- unsigned i;
-
- b += bytes;
-
- for(i = 0; i < bytes; i++)
- ret = (ret << 8) | (FLAC__uint32)(*--b);
-
- return ret;
-}
-
-FLAC__uint64 unpack_uint64_(FLAC__byte *b, unsigned bytes)
-{
- FLAC__uint64 ret = 0;
- unsigned i;
-
- for(i = 0; i < bytes; i++)
- ret = (ret << 8) | (FLAC__uint64)(*b++);
-
- return ret;
-}
-
-FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(!read_metadata_block_header_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, &iterator->is_last, &iterator->type, &iterator->length)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- iterator->status = read_metadata_block_data_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, block);
-
- return (iterator->status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK);
-}
-
-FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, unsigned *length)
-{
- FLAC__byte raw_header[FLAC__STREAM_METADATA_HEADER_LENGTH];
-
- if(read_cb(raw_header, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
- return false;
-
- *is_last = raw_header[0] & 0x80? true : false;
- *type = (FLAC__MetadataType)(raw_header[0] & 0x7f);
- *length = unpack_uint32_(raw_header + 1, 3);
-
- /* Note that we don't check:
- * if(iterator->type >= FLAC__METADATA_TYPE_UNDEFINED)
- * we just will read in an opaque block
- */
-
- return true;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block)
-{
- switch(block->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- return read_metadata_block_data_streaminfo_cb_(handle, read_cb, &block->data.stream_info);
- case FLAC__METADATA_TYPE_PADDING:
- return read_metadata_block_data_padding_cb_(handle, seek_cb, &block->data.padding, block->length);
- case FLAC__METADATA_TYPE_APPLICATION:
- return read_metadata_block_data_application_cb_(handle, read_cb, &block->data.application, block->length);
- case FLAC__METADATA_TYPE_SEEKTABLE:
- return read_metadata_block_data_seektable_cb_(handle, read_cb, &block->data.seek_table, block->length);
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- return read_metadata_block_data_vorbis_comment_cb_(handle, read_cb, &block->data.vorbis_comment);
- case FLAC__METADATA_TYPE_CUESHEET:
- return read_metadata_block_data_cuesheet_cb_(handle, read_cb, &block->data.cue_sheet);
- case FLAC__METADATA_TYPE_PICTURE:
- return read_metadata_block_data_picture_cb_(handle, read_cb, &block->data.picture);
- default:
- return read_metadata_block_data_unknown_cb_(handle, read_cb, &block->data.unknown, block->length);
- }
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block)
-{
- FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH], *b;
-
- if(read_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- b = buffer;
-
- /* we are using hardcoded numbers for simplicity but we should
- * probably eventually write a bit-level unpacker and use the
- * _STREAMINFO_ constants.
- */
- block->min_blocksize = unpack_uint32_(b, 2); b += 2;
- block->max_blocksize = unpack_uint32_(b, 2); b += 2;
- block->min_framesize = unpack_uint32_(b, 3); b += 3;
- block->max_framesize = unpack_uint32_(b, 3); b += 3;
- block->sample_rate = (unpack_uint32_(b, 2) << 4) | ((unsigned)(b[2] & 0xf0) >> 4);
- block->channels = (unsigned)((b[2] & 0x0e) >> 1) + 1;
- block->bits_per_sample = ((((unsigned)(b[2] & 0x01)) << 4) | (((unsigned)(b[3] & 0xf0)) >> 4)) + 1;
- block->total_samples = (((FLAC__uint64)(b[3] & 0x0f)) << 32) | unpack_uint64_(b+4, 4);
- memcpy(block->md5sum, b+8, 16);
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, unsigned block_length)
-{
- (void)block; /* nothing to do; we don't care about reading the padding bytes */
-
- if(0 != seek_cb(handle, block_length, SEEK_CUR))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, unsigned block_length)
-{
- const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
-
- if(read_cb(block->id, 1, id_bytes, handle) != id_bytes)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- if(block_length < id_bytes)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- block_length -= id_bytes;
-
- if(block_length == 0) {
- block->data = 0;
- }
- else {
- if(0 == (block->data = (FLAC__byte*)malloc(block_length)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(read_cb(block->data, 1, block_length, handle) != block_length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, unsigned block_length)
-{
- unsigned i;
- FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
-
- FLAC__ASSERT(block_length % FLAC__STREAM_METADATA_SEEKPOINT_LENGTH == 0);
-
- block->num_points = block_length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
-
- if(block->num_points == 0)
- block->points = 0;
- else if(0 == (block->points = (FLAC__StreamMetadata_SeekPoint*)safe_malloc_mul_2op_(block->num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < block->num_points; i++) {
- if(read_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- /* some MAGIC NUMBERs here */
- block->points[i].sample_number = unpack_uint64_(buffer, 8);
- block->points[i].stream_offset = unpack_uint64_(buffer+8, 8);
- block->points[i].frame_samples = unpack_uint32_(buffer+16, 2);
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry)
-{
- const unsigned entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8 == sizeof(buffer));
-
- if(read_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- entry->length = unpack_uint32_little_endian_(buffer, entry_length_len);
-
- if(0 != entry->entry)
- free(entry->entry);
-
- if(entry->length == 0) {
- entry->entry = 0;
- }
- else {
- if(0 == (entry->entry = (FLAC__byte*)safe_malloc_add_2op_(entry->length, /*+*/1)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(read_cb(entry->entry, 1, entry->length, handle) != entry->length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- entry->entry[entry->length] = '\0';
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment *block)
-{
- unsigned i;
- FLAC__Metadata_SimpleIteratorStatus status;
- const unsigned num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8 == sizeof(buffer));
-
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, &(block->vendor_string))))
- return status;
-
- if(read_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->num_comments = unpack_uint32_little_endian_(buffer, num_comments_len);
-
- if(block->num_comments == 0) {
- block->comments = 0;
- }
- else if(0 == (block->comments = (FLAC__StreamMetadata_VorbisComment_Entry*)calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < block->num_comments; i++) {
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, block->comments + i)))
- return status;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track)
-{
- unsigned i, len;
- FLAC__byte buffer[32]; /* asserted below that this is big enough */
-
- FLAC__ASSERT(sizeof(buffer) >= sizeof(FLAC__uint64));
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->offset = unpack_uint64_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->number = (FLAC__byte)unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
- if(read_cb(track->isrc, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN == 1);
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN == 1);
- track->type = buffer[0] >> 7;
- track->pre_emphasis = (buffer[0] >> 6) & 1;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->num_indices = (FLAC__byte)unpack_uint32_(buffer, len);
-
- if(track->num_indices == 0) {
- track->indices = 0;
- }
- else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)calloc(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < track->num_indices; i++) {
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->indices[i].offset = unpack_uint64_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->indices[i].number = (FLAC__byte)unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block)
-{
- unsigned i, len;
- FLAC__Metadata_SimpleIteratorStatus status;
- FLAC__byte buffer[1024]; /* MSVC needs a constant expression so we put a magic number and assert */
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN)/8 <= sizeof(buffer));
- FLAC__ASSERT(sizeof(FLAC__uint64) <= sizeof(buffer));
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
- if(read_cb(block->media_catalog_number, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->lead_in = unpack_uint64_(buffer, len);
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->is_cd = buffer[0]&0x80? true : false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->num_tracks = unpack_uint32_(buffer, len);
-
- if(block->num_tracks == 0) {
- block->tracks = 0;
- }
- else if(0 == (block->tracks = (FLAC__StreamMetadata_CueSheet_Track*)calloc(block->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < block->num_tracks; i++) {
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_cuesheet_track_cb_(handle, read_cb, block->tracks + i)))
- return status;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cstring_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__byte **data, FLAC__uint32 *length, FLAC__uint32 length_len)
-{
- FLAC__byte buffer[sizeof(FLAC__uint32)];
-
- FLAC__ASSERT(0 != data);
- FLAC__ASSERT(length_len%8 == 0);
-
- length_len /= 8; /* convert to bytes */
-
- FLAC__ASSERT(sizeof(buffer) >= length_len);
-
- if(read_cb(buffer, 1, length_len, handle) != length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- *length = unpack_uint32_(buffer, length_len);
-
- if(0 != *data)
- free(*data);
-
- if(0 == (*data = (FLAC__byte*)safe_malloc_add_2op_(*length, /*+*/1)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(*length > 0) {
- if(read_cb(*data, 1, *length, handle) != *length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- (*data)[*length] = '\0';
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block)
-{
- FLAC__Metadata_SimpleIteratorStatus status;
- FLAC__byte buffer[4]; /* asserted below that this is big enough */
- FLAC__uint32 len;
-
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_TYPE_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->type = (FLAC__StreamMetadata_Picture_Type)unpack_uint32_(buffer, len);
-
- if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, (FLAC__byte**)(&(block->mime_type)), &len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
-
- if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->description), &len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->width = unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->height = unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->depth = unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_COLORS_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->colors = unpack_uint32_(buffer, len);
-
- /* for convenience we use read_metadata_block_data_picture_cstring_cb_() even though it adds an extra terminating NUL we don't use */
- if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->data), &(block->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, unsigned block_length)
-{
- if(block_length == 0) {
- block->data = 0;
- }
- else {
- if(0 == (block->data = (FLAC__byte*)malloc(block_length)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(read_cb(block->data, 1, block_length, handle) != block_length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != file);
- FLAC__ASSERT(0 != status);
-
- if(!write_metadata_block_header_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != file);
- FLAC__ASSERT(0 != status);
-
- if (write_metadata_block_data_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
- return true;
- }
- else {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
-}
-
-FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
-{
- FLAC__byte buffer[FLAC__STREAM_METADATA_HEADER_LENGTH];
-
- FLAC__ASSERT(block->length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
-
- buffer[0] = (block->is_last? 0x80 : 0) | (FLAC__byte)block->type;
- pack_uint32_(block->length, buffer + 1, 3);
-
- if(write_cb(buffer, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != block);
-
- switch(block->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- return write_metadata_block_data_streaminfo_cb_(handle, write_cb, &block->data.stream_info);
- case FLAC__METADATA_TYPE_PADDING:
- return write_metadata_block_data_padding_cb_(handle, write_cb, &block->data.padding, block->length);
- case FLAC__METADATA_TYPE_APPLICATION:
- return write_metadata_block_data_application_cb_(handle, write_cb, &block->data.application, block->length);
- case FLAC__METADATA_TYPE_SEEKTABLE:
- return write_metadata_block_data_seektable_cb_(handle, write_cb, &block->data.seek_table);
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- return write_metadata_block_data_vorbis_comment_cb_(handle, write_cb, &block->data.vorbis_comment);
- case FLAC__METADATA_TYPE_CUESHEET:
- return write_metadata_block_data_cuesheet_cb_(handle, write_cb, &block->data.cue_sheet);
- case FLAC__METADATA_TYPE_PICTURE:
- return write_metadata_block_data_picture_cb_(handle, write_cb, &block->data.picture);
- default:
- return write_metadata_block_data_unknown_cb_(handle, write_cb, &block->data.unknown, block->length);
- }
-}
-
-FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block)
-{
- FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH];
- const unsigned channels1 = block->channels - 1;
- const unsigned bps1 = block->bits_per_sample - 1;
-
- /* we are using hardcoded numbers for simplicity but we should
- * probably eventually write a bit-level packer and use the
- * _STREAMINFO_ constants.
- */
- pack_uint32_(block->min_blocksize, buffer, 2);
- pack_uint32_(block->max_blocksize, buffer+2, 2);
- pack_uint32_(block->min_framesize, buffer+4, 3);
- pack_uint32_(block->max_framesize, buffer+7, 3);
- buffer[10] = (block->sample_rate >> 12) & 0xff;
- buffer[11] = (block->sample_rate >> 4) & 0xff;
- buffer[12] = ((block->sample_rate & 0x0f) << 4) | (channels1 << 1) | (bps1 >> 4);
- buffer[13] = (FLAC__byte)(((bps1 & 0x0f) << 4) | ((block->total_samples >> 32) & 0x0f));
- pack_uint32_((FLAC__uint32)block->total_samples, buffer+14, 4);
- memcpy(buffer+18, block->md5sum, 16);
-
- if(write_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, unsigned block_length)
-{
- unsigned i, n = block_length;
- FLAC__byte buffer[1024];
-
- (void)block;
-
- memset(buffer, 0, 1024);
-
- for(i = 0; i < n/1024; i++)
- if(write_cb(buffer, 1, 1024, handle) != 1024)
- return false;
-
- n %= 1024;
-
- if(write_cb(buffer, 1, n, handle) != n)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, unsigned block_length)
-{
- const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
-
- if(write_cb(block->id, 1, id_bytes, handle) != id_bytes)
- return false;
-
- block_length -= id_bytes;
-
- if(write_cb(block->data, 1, block_length, handle) != block_length)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block)
-{
- unsigned i;
- FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
-
- for(i = 0; i < block->num_points; i++) {
- /* some MAGIC NUMBERs here */
- pack_uint64_(block->points[i].sample_number, buffer, 8);
- pack_uint64_(block->points[i].stream_offset, buffer+8, 8);
- pack_uint32_(block->points[i].frame_samples, buffer+16, 2);
- if(write_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
- return false;
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block)
-{
- unsigned i;
- const unsigned entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
- const unsigned num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(max(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN, FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8 == sizeof(buffer));
-
- pack_uint32_little_endian_(block->vendor_string.length, buffer, entry_length_len);
- if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
- return false;
- if(write_cb(block->vendor_string.entry, 1, block->vendor_string.length, handle) != block->vendor_string.length)
- return false;
-
- pack_uint32_little_endian_(block->num_comments, buffer, num_comments_len);
- if(write_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
- return false;
-
- for(i = 0; i < block->num_comments; i++) {
- pack_uint32_little_endian_(block->comments[i].length, buffer, entry_length_len);
- if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
- return false;
- if(write_cb(block->comments[i].entry, 1, block->comments[i].length, handle) != block->comments[i].length)
- return false;
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block)
-{
- unsigned i, j, len;
- FLAC__byte buffer[1024]; /* asserted below that this is big enough */
-
- FLAC__ASSERT(sizeof(buffer) >= sizeof(FLAC__uint64));
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN)/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
- if(write_cb(block->media_catalog_number, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
- pack_uint64_(block->lead_in, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
- memset(buffer, 0, len);
- if(block->is_cd)
- buffer[0] |= 0x80;
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
- pack_uint32_(block->num_tracks, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- for(i = 0; i < block->num_tracks; i++) {
- FLAC__StreamMetadata_CueSheet_Track *track = block->tracks + i;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
- pack_uint64_(track->offset, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
- pack_uint32_(track->number, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
- if(write_cb(track->isrc, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
- memset(buffer, 0, len);
- buffer[0] = (track->type << 7) | (track->pre_emphasis << 6);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
- pack_uint32_(track->num_indices, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- for(j = 0; j < track->num_indices; j++) {
- FLAC__StreamMetadata_CueSheet_Index *index = track->indices + j;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
- pack_uint64_(index->offset, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
- pack_uint32_(index->number, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
- memset(buffer, 0, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block)
-{
- unsigned len;
- size_t slen;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_TYPE_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_COLORS_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN%8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8);
-
- len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8;
- pack_uint32_(block->type, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8;
- slen = strlen(block->mime_type);
- pack_uint32_(slen, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- if(write_cb(block->mime_type, 1, slen, handle) != slen)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8;
- slen = strlen((const char *)block->description);
- pack_uint32_(slen, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- if(write_cb(block->description, 1, slen, handle) != slen)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8;
- pack_uint32_(block->width, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8;
- pack_uint32_(block->height, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8;
- pack_uint32_(block->depth, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8;
- pack_uint32_(block->colors, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8;
- pack_uint32_(block->data_length, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- if(write_cb(block->data, 1, block->data_length, handle) != block->data_length)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, unsigned block_length)
-{
- if(write_cb(block->data, 1, block_length, handle) != block_length)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block)
-{
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- if(!write_metadata_block_header_(iterator->file, &iterator->status, block))
- return false;
-
- if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
- return false;
-
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return read_metadata_block_header_(iterator);
-}
-
-FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, unsigned padding_length, FLAC__bool padding_is_last)
-{
- FLAC__StreamMetadata *padding;
-
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- block->is_last = false;
-
- if(!write_metadata_block_header_(iterator->file, &iterator->status, block))
- return false;
-
- if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
- return false;
-
- if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- padding->is_last = padding_is_last;
- padding->length = padding_length;
-
- if(!write_metadata_block_header_(iterator->file, &iterator->status, padding)) {
- FLAC__metadata_object_delete(padding);
- return false;
- }
-
- if(!write_metadata_block_data_(iterator->file, &iterator->status, padding)) {
- FLAC__metadata_object_delete(padding);
- return false;
- }
-
- FLAC__metadata_object_delete(padding);
-
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return read_metadata_block_header_(iterator);
-}
-
-FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append)
-{
- FILE *tempfile;
- char *tempfilename;
- int fixup_is_last_code = 0; /* 0 => no need to change any is_last flags */
- off_t fixup_is_last_flag_offset = -1;
-
- FLAC__ASSERT(0 != block || append == false);
-
- if(iterator->is_last) {
- if(append) {
- fixup_is_last_code = 1; /* 1 => clear the is_last flag at the following offset */
- fixup_is_last_flag_offset = iterator->offset[iterator->depth];
- }
- else if(0 == block) {
- simple_iterator_push_(iterator);
- if(!FLAC__metadata_simple_iterator_prev(iterator)) {
- (void)simple_iterator_pop_(iterator);
- return false;
- }
- fixup_is_last_code = -1; /* -1 => set the is_last the flag at the following offset */
- fixup_is_last_flag_offset = iterator->offset[iterator->depth];
- if(!simple_iterator_pop_(iterator))
- return false;
- }
- }
-
- if(!simple_iterator_copy_file_prefix_(iterator, &tempfile, &tempfilename, append))
- return false;
-
- if(0 != block) {
- if(!write_metadata_block_header_(tempfile, &iterator->status, block)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
-
- if(!write_metadata_block_data_(tempfile, &iterator->status, block)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
- }
-
- if(!simple_iterator_copy_file_postfix_(iterator, &tempfile, &tempfilename, fixup_is_last_code, fixup_is_last_flag_offset, block==0))
- return false;
-
- if(append)
- return FLAC__metadata_simple_iterator_next(iterator);
-
- return true;
-}
-
-void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(iterator->depth+1 < SIMPLE_ITERATOR_MAX_PUSH_DEPTH);
- iterator->offset[iterator->depth+1] = iterator->offset[iterator->depth];
- iterator->depth++;
-}
-
-FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(iterator->depth > 0);
- iterator->depth--;
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return read_metadata_block_header_(iterator);
-}
-
-/* return meanings:
- * 0: ok
- * 1: read error
- * 2: seek error
- * 3: not a FLAC file
- */
-unsigned seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb)
-{
- FLAC__byte buffer[4];
- size_t n;
- unsigned i;
-
- FLAC__ASSERT(FLAC__STREAM_SYNC_LENGTH == sizeof(buffer));
-
- /* skip any id3v2 tag */
- errno = 0;
- n = read_cb(buffer, 1, 4, handle);
- if(errno)
- return 1;
- else if(n != 4)
- return 3;
- else if(0 == memcmp(buffer, "ID3", 3)) {
- unsigned tag_length = 0;
-
- /* skip to the tag length */
- if(seek_cb(handle, 2, SEEK_CUR) < 0)
- return 2;
-
- /* read the length */
- for(i = 0; i < 4; i++) {
- if(read_cb(buffer, 1, 1, handle) < 1 || buffer[0] & 0x80)
- return 1;
- tag_length <<= 7;
- tag_length |= (buffer[0] & 0x7f);
- }
-
- /* skip the rest of the tag */
- if(seek_cb(handle, tag_length, SEEK_CUR) < 0)
- return 2;
-
- /* read the stream sync code */
- errno = 0;
- n = read_cb(buffer, 1, 4, handle);
- if(errno)
- return 1;
- else if(n != 4)
- return 3;
- }
-
- /* check for the fLaC signature */
- if(0 == memcmp(FLAC__STREAM_SYNC_STRING, buffer, FLAC__STREAM_SYNC_LENGTH))
- return 0;
- else
- return 3;
-}
-
-unsigned seek_to_first_metadata_block_(FILE *f)
-{
- return seek_to_first_metadata_block_cb_((FLAC__IOHandle)f, (FLAC__IOCallback_Read)fread, fseek_wrapper_);
-}
-
-FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append)
-{
- const off_t offset_end = append? iterator->offset[iterator->depth] + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (off_t)iterator->length : iterator->offset[iterator->depth];
-
- if(0 != fseeko(iterator->file, 0, SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(!open_tempfile_(iterator->filename, iterator->tempfile_path_prefix, tempfile, tempfilename, &iterator->status)) {
- cleanup_tempfile_(tempfile, tempfilename);
- return false;
- }
- if(!copy_n_bytes_from_file_(iterator->file, *tempfile, offset_end, &iterator->status)) {
- cleanup_tempfile_(tempfile, tempfilename);
- return false;
- }
-
- return true;
-}
-
-FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, off_t fixup_is_last_flag_offset, FLAC__bool backup)
-{
- off_t save_offset = iterator->offset[iterator->depth];
- FLAC__ASSERT(0 != *tempfile);
-
- if(0 != fseeko(iterator->file, save_offset + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (off_t)iterator->length, SEEK_SET)) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(!copy_remaining_bytes_from_file_(iterator->file, *tempfile, &iterator->status)) {
- cleanup_tempfile_(tempfile, tempfilename);
- return false;
- }
-
- if(fixup_is_last_code != 0) {
- /*
- * if code == 1, it means a block was appended to the end so
- * we have to clear the is_last flag of the previous block
- * if code == -1, it means the last block was deleted so
- * we have to set the is_last flag of the previous block
- */
- /* MAGIC NUMBERs here; we know the is_last flag is the high bit of the byte at this location */
- FLAC__byte x;
- if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(fread(&x, 1, 1, *tempfile) != 1) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(fixup_is_last_code > 0) {
- FLAC__ASSERT(x & 0x80);
- x &= 0x7f;
- }
- else {
- FLAC__ASSERT(!(x & 0x80));
- x |= 0x80;
- }
- if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(local__fwrite(&x, 1, 1, *tempfile) != 1) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- (void)fclose(iterator->file);
-
- if(!transport_tempfile_(iterator->filename, tempfile, tempfilename, &iterator->status))
- return false;
-
- if(iterator->has_stats)
- set_file_stats_(iterator->filename, &iterator->stats);
-
- if(!simple_iterator_prime_input_(iterator, !iterator->is_writable))
- return false;
- if(backup) {
- while(iterator->offset[iterator->depth] + (off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (off_t)iterator->length < save_offset)
- if(!FLAC__metadata_simple_iterator_next(iterator))
- return false;
- return true;
- }
- else {
- /* move the iterator to it's original block faster by faking a push, then doing a pop_ */
- FLAC__ASSERT(iterator->depth == 0);
- iterator->offset[0] = save_offset;
- iterator->depth++;
- return simple_iterator_pop_(iterator);
- }
-}
-
-FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- FLAC__ASSERT(bytes >= 0);
- while(bytes > 0) {
- n = min(sizeof(buffer), (size_t)bytes);
- if(fread(buffer, 1, n, file) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(local__fwrite(buffer, 1, n, tempfile) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- bytes -= n;
- }
-
- return true;
-}
-
-FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- FLAC__ASSERT(bytes >= 0);
- while(bytes > 0) {
- n = min(sizeof(buffer), (size_t)bytes);
- if(read_cb(buffer, 1, n, handle) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(temp_write_cb(buffer, 1, n, temp_handle) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- bytes -= n;
- }
-
- return true;
-}
-
-FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- while(!feof(file)) {
- n = fread(buffer, 1, sizeof(buffer), file);
- if(n == 0 && !feof(file)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(n > 0 && local__fwrite(buffer, 1, n, tempfile) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- while(!eof_cb(handle)) {
- n = read_cb(buffer, 1, sizeof(buffer), handle);
- if(n == 0 && !eof_cb(handle)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(n > 0 && temp_write_cb(buffer, 1, n, temp_handle) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- static const char *tempfile_suffix = ".metadata_edit";
- if(0 == tempfile_path_prefix) {
- if(0 == (*tempfilename = (char*)safe_malloc_add_3op_(strlen(filename), /*+*/strlen(tempfile_suffix), /*+*/1))) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- strcpy(*tempfilename, filename);
- strcat(*tempfilename, tempfile_suffix);
- }
- else {
- const char *p = strrchr(filename, '/');
- if(0 == p)
- p = filename;
- else
- p++;
-
- if(0 == (*tempfilename = (char*)safe_malloc_add_4op_(strlen(tempfile_path_prefix), /*+*/strlen(p), /*+*/strlen(tempfile_suffix), /*+*/2))) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- strcpy(*tempfilename, tempfile_path_prefix);
- strcat(*tempfilename, "/");
- strcat(*tempfilename, p);
- strcat(*tempfilename, tempfile_suffix);
- }
-
- if(0 == (*tempfile = fopen(*tempfilename, "w+b"))) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != tempfile);
- FLAC__ASSERT(0 != *tempfile);
- FLAC__ASSERT(0 != tempfilename);
- FLAC__ASSERT(0 != *tempfilename);
- FLAC__ASSERT(0 != status);
-
- (void)fclose(*tempfile);
- *tempfile = 0;
-
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ || defined __EMX__
- /* on some flavors of windows, rename() will fail if the destination already exists */
- if(unlink(filename) < 0) {
- cleanup_tempfile_(tempfile, tempfilename);
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR;
- return false;
- }
-#endif
-
- /*@@@ to fully support the tempfile_path_prefix we need to update this piece to actually copy across filesystems instead of just rename(): */
- if(0 != rename(*tempfilename, filename)) {
- cleanup_tempfile_(tempfile, tempfilename);
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR;
- return false;
- }
-
- cleanup_tempfile_(tempfile, tempfilename);
-
- return true;
-}
-
-void cleanup_tempfile_(FILE **tempfile, char **tempfilename)
-{
- if(0 != *tempfile) {
- (void)fclose(*tempfile);
- *tempfile = 0;
- }
-
- if(0 != *tempfilename) {
- (void)unlink(*tempfilename);
- free(*tempfilename);
- *tempfilename = 0;
- }
-}
-
-FLAC__bool get_file_stats_(const char *filename, struct stat *stats)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != stats);
- return (0 == stat(filename, stats));
-}
-
-void set_file_stats_(const char *filename, struct stat *stats)
-{
- struct utimbuf srctime;
-
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != stats);
-
- srctime.actime = stats->st_atime;
- srctime.modtime = stats->st_mtime;
- (void)chmod(filename, stats->st_mode);
- (void)utime(filename, &srctime);
-#if !defined _MSC_VER && !defined __BORLANDC__ && !defined __MINGW32__ && !defined __EMX__
- (void)chown(filename, stats->st_uid, -1);
- (void)chown(filename, -1, stats->st_gid);
-#endif
-}
-
-int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence)
-{
- return fseeko((FILE*)handle, (off_t)offset, whence);
-}
-
-FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle)
-{
- return ftello((FILE*)handle);
-}
-
-FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status)
-{
- switch(status) {
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK:
- return FLAC__METADATA_CHAIN_STATUS_OK;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT:
- return FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE:
- return FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE:
- return FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE:
- return FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA:
- return FLAC__METADATA_CHAIN_STATUS_BAD_METADATA;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR:
- default:
- return FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- }
-}
diff --git a/src/lib/libflac/libFLAC/metadata_object.c b/src/lib/libflac/libFLAC/metadata_object.c
deleted file mode 100644
index dc366476e14..00000000000
--- a/src/lib/libflac/libFLAC/metadata_object.c
+++ /dev/null
@@ -1,1819 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "private/metadata.h"
-
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-
-
-/****************************************************************************
- *
- * Local routines
- *
- ***************************************************************************/
-
-/* copy bytes:
- * from = NULL && bytes = 0
- * to <- NULL
- * from != NULL && bytes > 0
- * to <- copy of from
- * else ASSERT
- * malloc error leaves 'to' unchanged
- */
-static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes)
-{
- FLAC__ASSERT(0 != to);
- if(bytes > 0 && 0 != from) {
- FLAC__byte *x;
- if(0 == (x = (FLAC__byte*)safe_malloc_(bytes)))
- return false;
- memcpy(x, from, bytes);
- *to = x;
- }
- else {
- FLAC__ASSERT(0 == from);
- FLAC__ASSERT(bytes == 0);
- *to = 0;
- }
- return true;
-}
-
-#if 0 /* UNUSED */
-/* like copy_bytes_(), but free()s the original '*to' if the copy succeeds and the original '*to' is non-NULL */
-static FLAC__bool free_copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes)
-{
- FLAC__byte *copy;
- FLAC__ASSERT(0 != to);
- if(copy_bytes_(&copy, from, bytes)) {
- if(*to)
- free(*to);
- *to = copy;
- return true;
- }
- else
- return false;
-}
-#endif
-
-/* reallocate entry to 1 byte larger and add a terminating NUL */
-/* realloc() failure leaves entry unchanged */
-static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, unsigned length)
-{
- FLAC__byte *x = (FLAC__byte*)safe_realloc_add_2op_(*entry, length, /*+*/1);
- if(0 != x) {
- x[length] = '\0';
- *entry = x;
- return true;
- }
- else
- return false;
-}
-
-/* copies the NUL-terminated C-string 'from' to '*to', leaving '*to'
- * unchanged if malloc fails, free()ing the original '*to' if it
- * succeeds and the original '*to' was not NULL
- */
-static FLAC__bool copy_cstring_(char **to, const char *from)
-{
- char *copy = strdup(from);
- FLAC__ASSERT(to);
- if(copy) {
- if(*to)
- free(*to);
- *to = copy;
- return true;
- }
- else
- return false;
-}
-
-static FLAC__bool copy_vcentry_(FLAC__StreamMetadata_VorbisComment_Entry *to, const FLAC__StreamMetadata_VorbisComment_Entry *from)
-{
- to->length = from->length;
- if(0 == from->entry) {
- FLAC__ASSERT(from->length == 0);
- to->entry = 0;
- }
- else {
- FLAC__byte *x;
- FLAC__ASSERT(from->length > 0);
- if(0 == (x = (FLAC__byte*)safe_malloc_add_2op_(from->length, /*+*/1)))
- return false;
- memcpy(x, from->entry, from->length);
- x[from->length] = '\0';
- to->entry = x;
- }
- return true;
-}
-
-static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from)
-{
- memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track));
- if(0 == from->indices) {
- FLAC__ASSERT(from->num_indices == 0);
- }
- else {
- FLAC__StreamMetadata_CueSheet_Index *x;
- FLAC__ASSERT(from->num_indices > 0);
- if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)safe_malloc_mul_2op_(from->num_indices, /*times*/sizeof(FLAC__StreamMetadata_CueSheet_Index))))
- return false;
- memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
- to->indices = x;
- }
- return true;
-}
-
-static void seektable_calculate_length_(FLAC__StreamMetadata *object)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
-}
-
-static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points)
-{
- FLAC__StreamMetadata_SeekPoint *object_array;
-
- FLAC__ASSERT(num_points > 0);
-
- object_array = (FLAC__StreamMetadata_SeekPoint*)safe_malloc_mul_2op_(num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint));
-
- if(0 != object_array) {
- unsigned i;
- for(i = 0; i < num_points; i++) {
- object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
- object_array[i].stream_offset = 0;
- object_array[i].frame_samples = 0;
- }
- }
-
- return object_array;
-}
-
-static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object)
-{
- unsigned i;
-
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8;
- object->length += object->data.vorbis_comment.vendor_string.length;
- object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8;
- for(i = 0; i < object->data.vorbis_comment.num_comments; i++) {
- object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8);
- object->length += object->data.vorbis_comment.comments[i].length;
- }
-}
-
-static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments)
-{
- FLAC__ASSERT(num_comments > 0);
-
- return (FLAC__StreamMetadata_VorbisComment_Entry*)safe_calloc_(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
-}
-
-static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != object_array && num_comments > 0);
-
- for(i = 0; i < num_comments; i++)
- if(0 != object_array[i].entry)
- free(object_array[i].entry);
-
- if(0 != object_array)
- free(object_array);
-}
-
-static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_copy_(const FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
-{
- FLAC__StreamMetadata_VorbisComment_Entry *return_array;
-
- FLAC__ASSERT(0 != object_array);
- FLAC__ASSERT(num_comments > 0);
-
- return_array = vorbiscomment_entry_array_new_(num_comments);
-
- if(0 != return_array) {
- unsigned i;
-
- for(i = 0; i < num_comments; i++) {
- if(!copy_vcentry_(return_array+i, object_array+i)) {
- vorbiscomment_entry_array_delete_(return_array, num_comments);
- return 0;
- }
- }
- }
-
- return return_array;
-}
-
-static FLAC__bool vorbiscomment_set_entry_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry *dest, const FLAC__StreamMetadata_VorbisComment_Entry *src, FLAC__bool copy)
-{
- FLAC__byte *save;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(0 != dest);
- FLAC__ASSERT(0 != src);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT((0 != src->entry && src->length > 0) || (0 == src->entry && src->length == 0));
-
- save = dest->entry;
-
- if(0 != src->entry && src->length > 0) {
- if(copy) {
- /* do the copy first so that if we fail we leave the dest object untouched */
- if(!copy_vcentry_(dest, src))
- return false;
- }
- else {
- /* we have to make sure that the string we're taking over is null-terminated */
-
- /*
- * Stripping the const from src->entry is OK since we're taking
- * ownership of the pointer. This is a hack around a deficiency
- * in the API where the same function is used for 'copy' and
- * 'own', but the source entry is a const pointer. If we were
- * precise, the 'own' flavor would be a separate function with a
- * non-const source pointer. But it's not, so we hack away.
- */
- if(!ensure_null_terminated_((FLAC__byte**)(&src->entry), src->length))
- return false;
- *dest = *src;
- }
- }
- else {
- /* the src is null */
- *dest = *src;
- }
-
- if(0 != save)
- free(save);
-
- vorbiscomment_calculate_length_(object);
- return true;
-}
-
-static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name, unsigned field_name_length)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(0 != field_name);
-
- for(i = offset; i < object->data.vorbis_comment.num_comments; i++) {
- if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length))
- return (int)i;
- }
-
- return -1;
-}
-
-static void cuesheet_calculate_length_(FLAC__StreamMetadata *object)
-{
- unsigned i;
-
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- object->length = (
- FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN +
- FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN +
- FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN +
- FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN +
- FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN
- ) / 8;
-
- object->length += object->data.cue_sheet.num_tracks * (
- FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN
- ) / 8;
-
- for(i = 0; i < object->data.cue_sheet.num_tracks; i++) {
- object->length += object->data.cue_sheet.tracks[i].num_indices * (
- FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN +
- FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN +
- FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN
- ) / 8;
- }
-}
-
-static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices)
-{
- FLAC__ASSERT(num_indices > 0);
-
- return (FLAC__StreamMetadata_CueSheet_Index*)safe_calloc_(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index));
-}
-
-static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks)
-{
- FLAC__ASSERT(num_tracks > 0);
-
- return (FLAC__StreamMetadata_CueSheet_Track*)safe_calloc_(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
-}
-
-static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != object_array && num_tracks > 0);
-
- for(i = 0; i < num_tracks; i++) {
- if(0 != object_array[i].indices) {
- FLAC__ASSERT(object_array[i].num_indices > 0);
- free(object_array[i].indices);
- }
- }
-
- if(0 != object_array)
- free(object_array);
-}
-
-static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
-{
- FLAC__StreamMetadata_CueSheet_Track *return_array;
-
- FLAC__ASSERT(0 != object_array);
- FLAC__ASSERT(num_tracks > 0);
-
- return_array = cuesheet_track_array_new_(num_tracks);
-
- if(0 != return_array) {
- unsigned i;
-
- for(i = 0; i < num_tracks; i++) {
- if(!copy_track_(return_array+i, object_array+i)) {
- cuesheet_track_array_delete_(return_array, num_tracks);
- return 0;
- }
- }
- }
-
- return return_array;
-}
-
-static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy)
-{
- FLAC__StreamMetadata_CueSheet_Index *save;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(0 != dest);
- FLAC__ASSERT(0 != src);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT((0 != src->indices && src->num_indices > 0) || (0 == src->indices && src->num_indices == 0));
-
- save = dest->indices;
-
- /* do the copy first so that if we fail we leave the object untouched */
- if(copy) {
- if(!copy_track_(dest, src))
- return false;
- }
- else {
- *dest = *src;
- }
-
- if(0 != save)
- free(save);
-
- cuesheet_calculate_length_(object);
- return true;
-}
-
-
-/****************************************************************************
- *
- * Metadata object routines
- *
- ***************************************************************************/
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type)
-{
- FLAC__StreamMetadata *object;
-
- if(type > FLAC__MAX_METADATA_TYPE_CODE)
- return 0;
-
- object = (FLAC__StreamMetadata*)calloc(1, sizeof(FLAC__StreamMetadata));
- if(0 != object) {
- object->is_last = false;
- object->type = type;
- switch(type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
- break;
- case FLAC__METADATA_TYPE_PADDING:
- /* calloc() took care of this for us:
- object->length = 0;
- */
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
- /* calloc() took care of this for us:
- object->data.application.data = 0;
- */
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- /* calloc() took care of this for us:
- object->length = 0;
- object->data.seek_table.num_points = 0;
- object->data.seek_table.points = 0;
- */
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING);
- if(!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length+1)) {
- free(object);
- return 0;
- }
- vorbiscomment_calculate_length_(object);
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- cuesheet_calculate_length_(object);
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- object->length = (
- FLAC__STREAM_METADATA_PICTURE_TYPE_LEN +
- FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN + /* empty mime_type string */
- FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN + /* empty description string */
- FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN +
- FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN +
- FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN +
- FLAC__STREAM_METADATA_PICTURE_COLORS_LEN +
- FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN +
- 0 /* no data */
- ) / 8;
- object->data.picture.type = FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER;
- object->data.picture.mime_type = 0;
- object->data.picture.description = 0;
- /* calloc() took care of this for us:
- object->data.picture.width = 0;
- object->data.picture.height = 0;
- object->data.picture.depth = 0;
- object->data.picture.colors = 0;
- object->data.picture.data_length = 0;
- object->data.picture.data = 0;
- */
- /* now initialize mime_type and description with empty strings to make things easier on the client */
- if(!copy_cstring_(&object->data.picture.mime_type, "")) {
- free(object);
- return 0;
- }
- if(!copy_cstring_((char**)(&object->data.picture.description), "")) {
- if(object->data.picture.mime_type)
- free(object->data.picture.mime_type);
- free(object);
- return 0;
- }
- break;
- default:
- /* calloc() took care of this for us:
- object->length = 0;
- object->data.unknown.data = 0;
- */
- break;
- }
- }
-
- return object;
-}
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object)
-{
- FLAC__StreamMetadata *to;
-
- FLAC__ASSERT(0 != object);
-
- if(0 != (to = FLAC__metadata_object_new(object->type))) {
- to->is_last = object->is_last;
- to->type = object->type;
- to->length = object->length;
- switch(to->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- memcpy(&to->data.stream_info, &object->data.stream_info, sizeof(FLAC__StreamMetadata_StreamInfo));
- break;
- case FLAC__METADATA_TYPE_PADDING:
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if(to->length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8) { /* underflow check */
- FLAC__metadata_object_delete(to);
- return 0;
- }
- memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8);
- if(!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- to->data.seek_table.num_points = object->data.seek_table.num_points;
- if(to->data.seek_table.num_points > SIZE_MAX / sizeof(FLAC__StreamMetadata_SeekPoint)) { /* overflow check */
- FLAC__metadata_object_delete(to);
- return 0;
- }
- if(!copy_bytes_((FLAC__byte**)&to->data.seek_table.points, (FLAC__byte*)object->data.seek_table.points, object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint))) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(0 != to->data.vorbis_comment.vendor_string.entry) {
- free(to->data.vorbis_comment.vendor_string.entry);
- to->data.vorbis_comment.vendor_string.entry = 0;
- }
- if(!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- if(object->data.vorbis_comment.num_comments == 0) {
- FLAC__ASSERT(0 == object->data.vorbis_comment.comments);
- to->data.vorbis_comment.comments = 0;
- }
- else {
- FLAC__ASSERT(0 != object->data.vorbis_comment.comments);
- to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
- if(0 == to->data.vorbis_comment.comments) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- }
- to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments;
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet));
- if(object->data.cue_sheet.num_tracks == 0) {
- FLAC__ASSERT(0 == object->data.cue_sheet.tracks);
- }
- else {
- FLAC__ASSERT(0 != object->data.cue_sheet.tracks);
- to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
- if(0 == to->data.cue_sheet.tracks) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- }
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- to->data.picture.type = object->data.picture.type;
- if(!copy_cstring_(&to->data.picture.mime_type, object->data.picture.mime_type)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- if(!copy_cstring_((char**)(&to->data.picture.description), (const char*)object->data.picture.description)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- to->data.picture.width = object->data.picture.width;
- to->data.picture.height = object->data.picture.height;
- to->data.picture.depth = object->data.picture.depth;
- to->data.picture.colors = object->data.picture.colors;
- to->data.picture.data_length = object->data.picture.data_length;
- if(!copy_bytes_((&to->data.picture.data), object->data.picture.data, object->data.picture.data_length)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- default:
- if(!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- }
- }
-
- return to;
-}
-
-void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object)
-{
- FLAC__ASSERT(0 != object);
-
- switch(object->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- case FLAC__METADATA_TYPE_PADDING:
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if(0 != object->data.application.data) {
- free(object->data.application.data);
- object->data.application.data = 0;
- }
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- if(0 != object->data.seek_table.points) {
- free(object->data.seek_table.points);
- object->data.seek_table.points = 0;
- }
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(0 != object->data.vorbis_comment.vendor_string.entry) {
- free(object->data.vorbis_comment.vendor_string.entry);
- object->data.vorbis_comment.vendor_string.entry = 0;
- }
- if(0 != object->data.vorbis_comment.comments) {
- FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
- vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
- }
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- if(0 != object->data.cue_sheet.tracks) {
- FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
- cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
- }
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- if(0 != object->data.picture.mime_type) {
- free(object->data.picture.mime_type);
- object->data.picture.mime_type = 0;
- }
- if(0 != object->data.picture.description) {
- free(object->data.picture.description);
- object->data.picture.description = 0;
- }
- if(0 != object->data.picture.data) {
- free(object->data.picture.data);
- object->data.picture.data = 0;
- }
- break;
- default:
- if(0 != object->data.unknown.data) {
- free(object->data.unknown.data);
- object->data.unknown.data = 0;
- }
- break;
- }
-}
-
-FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object)
-{
- FLAC__metadata_object_delete_data(object);
- free(object);
-}
-
-static FLAC__bool compare_block_data_streaminfo_(const FLAC__StreamMetadata_StreamInfo *block1, const FLAC__StreamMetadata_StreamInfo *block2)
-{
- if(block1->min_blocksize != block2->min_blocksize)
- return false;
- if(block1->max_blocksize != block2->max_blocksize)
- return false;
- if(block1->min_framesize != block2->min_framesize)
- return false;
- if(block1->max_framesize != block2->max_framesize)
- return false;
- if(block1->sample_rate != block2->sample_rate)
- return false;
- if(block1->channels != block2->channels)
- return false;
- if(block1->bits_per_sample != block2->bits_per_sample)
- return false;
- if(block1->total_samples != block2->total_samples)
- return false;
- if(0 != memcmp(block1->md5sum, block2->md5sum, 16))
- return false;
- return true;
-}
-
-static FLAC__bool compare_block_data_application_(const FLAC__StreamMetadata_Application *block1, const FLAC__StreamMetadata_Application *block2, unsigned block_length)
-{
- FLAC__ASSERT(0 != block1);
- FLAC__ASSERT(0 != block2);
- FLAC__ASSERT(block_length >= sizeof(block1->id));
-
- if(0 != memcmp(block1->id, block2->id, sizeof(block1->id)))
- return false;
- if(0 != block1->data && 0 != block2->data)
- return 0 == memcmp(block1->data, block2->data, block_length - sizeof(block1->id));
- else
- return block1->data == block2->data;
-}
-
-static FLAC__bool compare_block_data_seektable_(const FLAC__StreamMetadata_SeekTable *block1, const FLAC__StreamMetadata_SeekTable *block2)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != block1);
- FLAC__ASSERT(0 != block2);
-
- if(block1->num_points != block2->num_points)
- return false;
-
- if(0 != block1->points && 0 != block2->points) {
- for(i = 0; i < block1->num_points; i++) {
- if(block1->points[i].sample_number != block2->points[i].sample_number)
- return false;
- if(block1->points[i].stream_offset != block2->points[i].stream_offset)
- return false;
- if(block1->points[i].frame_samples != block2->points[i].frame_samples)
- return false;
- }
- return true;
- }
- else
- return block1->points == block2->points;
-}
-
-static FLAC__bool compare_block_data_vorbiscomment_(const FLAC__StreamMetadata_VorbisComment *block1, const FLAC__StreamMetadata_VorbisComment *block2)
-{
- unsigned i;
-
- if(block1->vendor_string.length != block2->vendor_string.length)
- return false;
-
- if(0 != block1->vendor_string.entry && 0 != block2->vendor_string.entry) {
- if(0 != memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length))
- return false;
- }
- else if(block1->vendor_string.entry != block2->vendor_string.entry)
- return false;
-
- if(block1->num_comments != block2->num_comments)
- return false;
-
- for(i = 0; i < block1->num_comments; i++) {
- if(0 != block1->comments[i].entry && 0 != block2->comments[i].entry) {
- if(0 != memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length))
- return false;
- }
- else if(block1->comments[i].entry != block2->comments[i].entry)
- return false;
- }
- return true;
-}
-
-static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2)
-{
- unsigned i, j;
-
- if(0 != strcmp(block1->media_catalog_number, block2->media_catalog_number))
- return false;
-
- if(block1->lead_in != block2->lead_in)
- return false;
-
- if(block1->is_cd != block2->is_cd)
- return false;
-
- if(block1->num_tracks != block2->num_tracks)
- return false;
-
- if(0 != block1->tracks && 0 != block2->tracks) {
- FLAC__ASSERT(block1->num_tracks > 0);
- for(i = 0; i < block1->num_tracks; i++) {
- if(block1->tracks[i].offset != block2->tracks[i].offset)
- return false;
- if(block1->tracks[i].number != block2->tracks[i].number)
- return false;
- if(0 != memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc)))
- return false;
- if(block1->tracks[i].type != block2->tracks[i].type)
- return false;
- if(block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis)
- return false;
- if(block1->tracks[i].num_indices != block2->tracks[i].num_indices)
- return false;
- if(0 != block1->tracks[i].indices && 0 != block2->tracks[i].indices) {
- FLAC__ASSERT(block1->tracks[i].num_indices > 0);
- for(j = 0; j < block1->tracks[i].num_indices; j++) {
- if(block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset)
- return false;
- if(block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number)
- return false;
- }
- }
- else if(block1->tracks[i].indices != block2->tracks[i].indices)
- return false;
- }
- }
- else if(block1->tracks != block2->tracks)
- return false;
- return true;
-}
-
-static FLAC__bool compare_block_data_picture_(const FLAC__StreamMetadata_Picture *block1, const FLAC__StreamMetadata_Picture *block2)
-{
- if(block1->type != block2->type)
- return false;
- if(block1->mime_type != block2->mime_type && (0 == block1->mime_type || 0 == block2->mime_type || strcmp(block1->mime_type, block2->mime_type)))
- return false;
- if(block1->description != block2->description && (0 == block1->description || 0 == block2->description || strcmp((const char *)block1->description, (const char *)block2->description)))
- return false;
- if(block1->width != block2->width)
- return false;
- if(block1->height != block2->height)
- return false;
- if(block1->depth != block2->depth)
- return false;
- if(block1->colors != block2->colors)
- return false;
- if(block1->data_length != block2->data_length)
- return false;
- if(block1->data != block2->data && (0 == block1->data || 0 == block2->data || memcmp(block1->data, block2->data, block1->data_length)))
- return false;
- return true;
-}
-
-static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, unsigned block_length)
-{
- FLAC__ASSERT(0 != block1);
- FLAC__ASSERT(0 != block2);
-
- if(0 != block1->data && 0 != block2->data)
- return 0 == memcmp(block1->data, block2->data, block_length);
- else
- return block1->data == block2->data;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2)
-{
- FLAC__ASSERT(0 != block1);
- FLAC__ASSERT(0 != block2);
-
- if(block1->type != block2->type) {
- return false;
- }
- if(block1->is_last != block2->is_last) {
- return false;
- }
- if(block1->length != block2->length) {
- return false;
- }
- switch(block1->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info);
- case FLAC__METADATA_TYPE_PADDING:
- return true; /* we don't compare the padding guts */
- case FLAC__METADATA_TYPE_APPLICATION:
- return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length);
- case FLAC__METADATA_TYPE_SEEKTABLE:
- return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table);
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- return compare_block_data_vorbiscomment_(&block1->data.vorbis_comment, &block2->data.vorbis_comment);
- case FLAC__METADATA_TYPE_CUESHEET:
- return compare_block_data_cuesheet_(&block1->data.cue_sheet, &block2->data.cue_sheet);
- case FLAC__METADATA_TYPE_PICTURE:
- return compare_block_data_picture_(&block1->data.picture, &block2->data.picture);
- default:
- return compare_block_data_unknown_(&block1->data.unknown, &block2->data.unknown, block1->length);
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, unsigned length, FLAC__bool copy)
-{
- FLAC__byte *save;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION);
- FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false));
-
- save = object->data.application.data;
-
- /* do the copy first so that if we fail we leave the object untouched */
- if(copy) {
- if(!copy_bytes_(&object->data.application.data, data, length))
- return false;
- }
- else {
- object->data.application.data = data;
- }
-
- if(0 != save)
- free(save);
-
- object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, unsigned new_num_points)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- if(0 == object->data.seek_table.points) {
- FLAC__ASSERT(object->data.seek_table.num_points == 0);
- if(0 == new_num_points)
- return true;
- else if(0 == (object->data.seek_table.points = seekpoint_array_new_(new_num_points)))
- return false;
- }
- else {
- const size_t old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
- const size_t new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
-
- /* overflow check */
- if((size_t)new_num_points > SIZE_MAX / sizeof(FLAC__StreamMetadata_SeekPoint))
- return false;
-
- FLAC__ASSERT(object->data.seek_table.num_points > 0);
-
- if(new_size == 0) {
- free(object->data.seek_table.points);
- object->data.seek_table.points = 0;
- }
- else if(0 == (object->data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)realloc(object->data.seek_table.points, new_size)))
- return false;
-
- /* if growing, set new elements to placeholders */
- if(new_size > old_size) {
- unsigned i;
- for(i = object->data.seek_table.num_points; i < new_num_points; i++) {
- object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
- object->data.seek_table.points[i].stream_offset = 0;
- object->data.seek_table.points[i].frame_samples = 0;
- }
- }
- }
-
- object->data.seek_table.num_points = new_num_points;
-
- seektable_calculate_length_(object);
- return true;
-}
-
-FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(point_num < object->data.seek_table.num_points);
-
- object->data.seek_table.points[point_num] = point;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point)
-{
- int i;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(point_num <= object->data.seek_table.num_points);
-
- if(!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1))
- return false;
-
- /* move all points >= point_num forward one space */
- for(i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--)
- object->data.seek_table.points[i] = object->data.seek_table.points[i-1];
-
- FLAC__metadata_object_seektable_set_point(object, point_num, point);
- seektable_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, unsigned point_num)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(point_num < object->data.seek_table.num_points);
-
- /* move all points > point_num backward one space */
- for(i = point_num; i < object->data.seek_table.num_points-1; i++)
- object->data.seek_table.points[i] = object->data.seek_table.points[i+1];
-
- return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- return FLAC__format_seektable_is_legal(&object->data.seek_table);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, unsigned num)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- if(num > 0)
- /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */
- return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num);
- else
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number)
-{
- FLAC__StreamMetadata_SeekTable *seek_table;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- seek_table = &object->data.seek_table;
-
- if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1))
- return false;
-
- seek_table->points[seek_table->num_points - 1].sample_number = sample_number;
- seek_table->points[seek_table->num_points - 1].stream_offset = 0;
- seek_table->points[seek_table->num_points - 1].frame_samples = 0;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], unsigned num)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(0 != sample_numbers || num == 0);
-
- if(num > 0) {
- FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
- unsigned i, j;
-
- i = seek_table->num_points;
-
- if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
- return false;
-
- for(j = 0; j < num; i++, j++) {
- seek_table->points[i].sample_number = sample_numbers[j];
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, unsigned num, FLAC__uint64 total_samples)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(total_samples > 0);
-
- if(num > 0 && total_samples > 0) {
- FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
- unsigned i, j;
-
- i = seek_table->num_points;
-
- if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
- return false;
-
- for(j = 0; j < num; i++, j++) {
- seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num;
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, unsigned samples, FLAC__uint64 total_samples)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(samples > 0);
- FLAC__ASSERT(total_samples > 0);
-
- if(samples > 0 && total_samples > 0) {
- FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
- unsigned i, j;
- FLAC__uint64 num, sample;
-
- num = 1 + total_samples / samples; /* 1+ for the first sample at 0 */
- /* now account for the fact that we don't place a seekpoint at "total_samples" since samples are number from 0: */
- if(total_samples % samples == 0)
- num--;
-
- i = seek_table->num_points;
-
- if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + (unsigned)num))
- return false;
-
- sample = 0;
- for(j = 0; j < num; i++, j++, sample += samples) {
- seek_table->points[i].sample_number = sample;
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact)
-{
- unsigned unique;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- unique = FLAC__format_seektable_sort(&object->data.seek_table);
-
- return !compact || FLAC__metadata_object_seektable_resize_points(object, unique);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- if(!FLAC__format_vorbiscomment_entry_value_is_legal(entry.entry, entry.length))
- return false;
- return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.vendor_string, &entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, unsigned new_num_comments)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- if(0 == object->data.vorbis_comment.comments) {
- FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0);
- if(0 == new_num_comments)
- return true;
- else if(0 == (object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments)))
- return false;
- }
- else {
- const size_t old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
- const size_t new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
-
- /* overflow check */
- if((size_t)new_num_comments > SIZE_MAX / sizeof(FLAC__StreamMetadata_VorbisComment_Entry))
- return false;
-
- FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
-
- /* if shrinking, free the truncated entries */
- if(new_num_comments < object->data.vorbis_comment.num_comments) {
- unsigned i;
- for(i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++)
- if(0 != object->data.vorbis_comment.comments[i].entry)
- free(object->data.vorbis_comment.comments[i].entry);
- }
-
- if(new_size == 0) {
- free(object->data.vorbis_comment.comments);
- object->data.vorbis_comment.comments = 0;
- }
- else if(0 == (object->data.vorbis_comment.comments = (FLAC__StreamMetadata_VorbisComment_Entry*)realloc(object->data.vorbis_comment.comments, new_size)))
- return false;
-
- /* if growing, zero all the length/pointers of new elements */
- if(new_size > old_size)
- memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size);
- }
-
- object->data.vorbis_comment.num_comments = new_num_comments;
-
- vorbiscomment_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
-
- if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
- return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.comments[comment_num], &entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- FLAC__StreamMetadata_VorbisComment *vc;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments);
-
- if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
-
- vc = &object->data.vorbis_comment;
-
- if(!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1))
- return false;
-
- /* move all comments >= comment_num forward one space */
- memmove(&vc->comments[comment_num+1], &vc->comments[comment_num], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-1-comment_num));
- vc->comments[comment_num].length = 0;
- vc->comments[comment_num].entry = 0;
-
- return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- return FLAC__metadata_object_vorbiscomment_insert_comment(object, object->data.vorbis_comment.num_comments, entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy)
-{
- FLAC__ASSERT(0 != entry.entry && entry.length > 0);
-
- if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
-
- {
- int i;
- size_t field_name_length;
- const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
-
- FLAC__ASSERT(0 != eq);
-
- if(0 == eq)
- return false; /* double protection */
-
- field_name_length = eq-entry.entry;
-
- if((i = vorbiscomment_find_entry_from_(object, 0, (const char *)entry.entry, field_name_length)) >= 0) {
- unsigned index = (unsigned)i;
- if(!FLAC__metadata_object_vorbiscomment_set_comment(object, index, entry, copy))
- return false;
- if(all && (index+1 < object->data.vorbis_comment.num_comments)) {
- for(i = vorbiscomment_find_entry_from_(object, index+1, (const char *)entry.entry, field_name_length); i >= 0; ) {
- if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i))
- return false;
- if((unsigned)i < object->data.vorbis_comment.num_comments)
- i = vorbiscomment_find_entry_from_(object, (unsigned)i, (const char *)entry.entry, field_name_length);
- else
- i = -1;
- }
- }
- return true;
- }
- else
- return FLAC__metadata_object_vorbiscomment_append_comment(object, entry, copy);
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, unsigned comment_num)
-{
- FLAC__StreamMetadata_VorbisComment *vc;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
-
- vc = &object->data.vorbis_comment;
-
- /* free the comment at comment_num */
- if(0 != vc->comments[comment_num].entry)
- free(vc->comments[comment_num].entry);
-
- /* move all comments > comment_num backward one space */
- memmove(&vc->comments[comment_num], &vc->comments[comment_num+1], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-comment_num-1));
- vc->comments[vc->num_comments-1].length = 0;
- vc->comments[vc->num_comments-1].entry = 0;
-
- return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value)
-{
- FLAC__ASSERT(0 != entry);
- FLAC__ASSERT(0 != field_name);
- FLAC__ASSERT(0 != field_value);
-
- if(!FLAC__format_vorbiscomment_entry_name_is_legal(field_name))
- return false;
- if(!FLAC__format_vorbiscomment_entry_value_is_legal((const FLAC__byte *)field_value, (unsigned)(-1)))
- return false;
-
- {
- const size_t nn = strlen(field_name);
- const size_t nv = strlen(field_value);
- entry->length = nn + 1 /*=*/ + nv;
- if(0 == (entry->entry = (FLAC__byte*)safe_malloc_add_4op_(nn, /*+*/1, /*+*/nv, /*+*/1)))
- return false;
- memcpy(entry->entry, field_name, nn);
- entry->entry[nn] = '=';
- memcpy(entry->entry+nn+1, field_value, nv);
- entry->entry[entry->length] = '\0';
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value)
-{
- FLAC__ASSERT(0 != entry.entry && entry.length > 0);
- FLAC__ASSERT(0 != field_name);
- FLAC__ASSERT(0 != field_value);
-
- if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
-
- {
- const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
- const size_t nn = eq-entry.entry;
- const size_t nv = entry.length-nn-1; /* -1 for the '=' */
- FLAC__ASSERT(0 != eq);
- if(0 == eq)
- return false; /* double protection */
- if(0 == (*field_name = (char*)safe_malloc_add_2op_(nn, /*+*/1)))
- return false;
- if(0 == (*field_value = (char*)safe_malloc_add_2op_(nv, /*+*/1))) {
- free(*field_name);
- return false;
- }
- memcpy(*field_name, entry.entry, nn);
- memcpy(*field_value, entry.entry+nn+1, nv);
- (*field_name)[nn] = '\0';
- (*field_value)[nv] = '\0';
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, unsigned field_name_length)
-{
- FLAC__ASSERT(0 != entry.entry && entry.length > 0);
- {
- const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ || defined __EMX__
-#define FLAC__STRNCASECMP strnicmp
-#else
-#define FLAC__STRNCASECMP strncasecmp
-#endif
- return (0 != eq && (unsigned)(eq-entry.entry) == field_name_length && 0 == FLAC__STRNCASECMP(field_name, (const char *)entry.entry, field_name_length));
-#undef FLAC__STRNCASECMP
- }
-}
-
-FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name)
-{
- FLAC__ASSERT(0 != field_name);
-
- return vorbiscomment_find_entry_from_(object, offset, field_name, strlen(field_name));
-}
-
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name)
-{
- const unsigned field_name_length = strlen(field_name);
- unsigned i;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- for(i = 0; i < object->data.vorbis_comment.num_comments; i++) {
- if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) {
- if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, i))
- return -1;
- else
- return 1;
- }
- }
-
- return 0;
-}
-
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name)
-{
- FLAC__bool ok = true;
- unsigned matching = 0;
- const unsigned field_name_length = strlen(field_name);
- int i;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- /* must delete from end to start otherwise it will interfere with our iteration */
- for(i = (int)object->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) {
- if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) {
- matching++;
- ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i);
- }
- }
-
- return ok? (int)matching : -1;
-}
-
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void)
-{
- return (FLAC__StreamMetadata_CueSheet_Track*)calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track));
-}
-
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object)
-{
- FLAC__StreamMetadata_CueSheet_Track *to;
-
- FLAC__ASSERT(0 != object);
-
- if(0 != (to = FLAC__metadata_object_cuesheet_track_new())) {
- if(!copy_track_(to, object)) {
- FLAC__metadata_object_cuesheet_track_delete(to);
- return 0;
- }
- }
-
- return to;
-}
-
-void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object)
-{
- FLAC__ASSERT(0 != object);
-
- if(0 != object->indices) {
- FLAC__ASSERT(object->num_indices > 0);
- free(object->indices);
- }
-}
-
-FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object)
-{
- FLAC__metadata_object_cuesheet_track_delete_data(object);
- free(object);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices)
-{
- FLAC__StreamMetadata_CueSheet_Track *track;
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
-
- track = &object->data.cue_sheet.tracks[track_num];
-
- if(0 == track->indices) {
- FLAC__ASSERT(track->num_indices == 0);
- if(0 == new_num_indices)
- return true;
- else if(0 == (track->indices = cuesheet_track_index_array_new_(new_num_indices)))
- return false;
- }
- else {
- const size_t old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
- const size_t new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
-
- /* overflow check */
- if((size_t)new_num_indices > SIZE_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Index))
- return false;
-
- FLAC__ASSERT(track->num_indices > 0);
-
- if(new_size == 0) {
- free(track->indices);
- track->indices = 0;
- }
- else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)realloc(track->indices, new_size)))
- return false;
-
- /* if growing, zero all the lengths/pointers of new elements */
- if(new_size > old_size)
- memset(track->indices + track->num_indices, 0, new_size - old_size);
- }
-
- track->num_indices = new_num_indices;
-
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num, FLAC__StreamMetadata_CueSheet_Index index)
-{
- FLAC__StreamMetadata_CueSheet_Track *track;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
- FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices);
-
- track = &object->data.cue_sheet.tracks[track_num];
-
- if(!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1))
- return false;
-
- /* move all indices >= index_num forward one space */
- memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num));
-
- track->indices[index_num] = index;
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num)
-{
- FLAC__StreamMetadata_CueSheet_Index index;
- memset(&index, 0, sizeof(index));
- return FLAC__metadata_object_cuesheet_track_insert_index(object, track_num, index_num, index);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num)
-{
- FLAC__StreamMetadata_CueSheet_Track *track;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
- FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices);
-
- track = &object->data.cue_sheet.tracks[track_num];
-
- /* move all indices > index_num backward one space */
- memmove(&track->indices[index_num], &track->indices[index_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-index_num-1));
-
- FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1);
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- if(0 == object->data.cue_sheet.tracks) {
- FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0);
- if(0 == new_num_tracks)
- return true;
- else if(0 == (object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks)))
- return false;
- }
- else {
- const size_t old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
- const size_t new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
-
- /* overflow check */
- if((size_t)new_num_tracks > SIZE_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Track))
- return false;
-
- FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
-
- /* if shrinking, free the truncated entries */
- if(new_num_tracks < object->data.cue_sheet.num_tracks) {
- unsigned i;
- for(i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++)
- if(0 != object->data.cue_sheet.tracks[i].indices)
- free(object->data.cue_sheet.tracks[i].indices);
- }
-
- if(new_size == 0) {
- free(object->data.cue_sheet.tracks);
- object->data.cue_sheet.tracks = 0;
- }
- else if(0 == (object->data.cue_sheet.tracks = (FLAC__StreamMetadata_CueSheet_Track*)realloc(object->data.cue_sheet.tracks, new_size)))
- return false;
-
- /* if growing, zero all the lengths/pointers of new elements */
- if(new_size > old_size)
- memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size);
- }
-
- object->data.cue_sheet.num_tracks = new_num_tracks;
-
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
-
- return cuesheet_set_track_(object, object->data.cue_sheet.tracks + track_num, track, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
-{
- FLAC__StreamMetadata_CueSheet *cs;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks);
-
- cs = &object->data.cue_sheet;
-
- if(!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1))
- return false;
-
- /* move all tracks >= track_num forward one space */
- memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num));
- cs->tracks[track_num].num_indices = 0;
- cs->tracks[track_num].indices = 0;
-
- return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num)
-{
- FLAC__StreamMetadata_CueSheet_Track track;
- memset(&track, 0, sizeof(track));
- return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num)
-{
- FLAC__StreamMetadata_CueSheet *cs;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
-
- cs = &object->data.cue_sheet;
-
- /* free the track at track_num */
- if(0 != cs->tracks[track_num].indices)
- free(cs->tracks[track_num].indices);
-
- /* move all tracks > track_num backward one space */
- memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1));
- cs->tracks[cs->num_tracks-1].num_indices = 0;
- cs->tracks[cs->num_tracks-1].indices = 0;
-
- return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation);
-}
-
-static FLAC__uint64 get_index_01_offset_(const FLAC__StreamMetadata_CueSheet *cs, unsigned track)
-{
- if (track >= (cs->num_tracks-1) || cs->tracks[track].num_indices < 1)
- return 0;
- else if (cs->tracks[track].indices[0].number == 1)
- return cs->tracks[track].indices[0].offset + cs->tracks[track].offset + cs->lead_in;
- else if (cs->tracks[track].num_indices < 2)
- return 0;
- else if (cs->tracks[track].indices[1].number == 1)
- return cs->tracks[track].indices[1].offset + cs->tracks[track].offset + cs->lead_in;
- else
- return 0;
-}
-
-static FLAC__uint32 cddb_add_digits_(FLAC__uint32 x)
-{
- FLAC__uint32 n = 0;
- while (x) {
- n += (x%10);
- x /= 10;
- }
- return n;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object)
-{
- const FLAC__StreamMetadata_CueSheet *cs;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- cs = &object->data.cue_sheet;
-
- if (cs->num_tracks < 2) /* need at least one real track and the lead-out track */
- return 0;
-
- {
- FLAC__uint32 i, length, sum = 0;
- for (i = 0; i < (cs->num_tracks-1); i++) /* -1 to avoid counting the lead-out */
- sum += cddb_add_digits_((FLAC__uint32)(get_index_01_offset_(cs, i) / 44100));
- length = (FLAC__uint32)((cs->tracks[cs->num_tracks-1].offset+cs->lead_in) / 44100) - (FLAC__uint32)(get_index_01_offset_(cs, 0) / 44100);
-
- return (sum % 0xFF) << 24 | length << 8 | (FLAC__uint32)(cs->num_tracks-1);
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy)
-{
- char *old;
- size_t old_length, new_length;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
- FLAC__ASSERT(0 != mime_type);
-
- old = object->data.picture.mime_type;
- old_length = old? strlen(old) : 0;
- new_length = strlen(mime_type);
-
- /* do the copy first so that if we fail we leave the object untouched */
- if(copy) {
- if(new_length >= SIZE_MAX) /* overflow check */
- return false;
- if(!copy_bytes_((FLAC__byte**)(&object->data.picture.mime_type), (FLAC__byte*)mime_type, new_length+1))
- return false;
- }
- else {
- object->data.picture.mime_type = mime_type;
- }
-
- if(0 != old)
- free(old);
-
- object->length -= old_length;
- object->length += new_length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy)
-{
- FLAC__byte *old;
- size_t old_length, new_length;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
- FLAC__ASSERT(0 != description);
-
- old = object->data.picture.description;
- old_length = old? strlen((const char *)old) : 0;
- new_length = strlen((const char *)description);
-
- /* do the copy first so that if we fail we leave the object untouched */
- if(copy) {
- if(new_length >= SIZE_MAX) /* overflow check */
- return false;
- if(!copy_bytes_(&object->data.picture.description, description, new_length+1))
- return false;
- }
- else {
- object->data.picture.description = description;
- }
-
- if(0 != old)
- free(old);
-
- object->length -= old_length;
- object->length += new_length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy)
-{
- FLAC__byte *old;
-
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
- FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false));
-
- old = object->data.picture.data;
-
- /* do the copy first so that if we fail we leave the object untouched */
- if(copy) {
- if(!copy_bytes_(&object->data.picture.data, data, length))
- return false;
- }
- else {
- object->data.picture.data = data;
- }
-
- if(0 != old)
- free(old);
-
- object->length -= object->data.picture.data_length;
- object->data.picture.data_length = length;
- object->length += length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation)
-{
- FLAC__ASSERT(0 != object);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
-
- return FLAC__format_picture_is_legal(&object->data.picture, violation);
-}
diff --git a/src/lib/libflac/libFLAC/stream_decoder.c b/src/lib/libflac/libFLAC/stream_decoder.c
deleted file mode 100644
index 29e1b4dc441..00000000000
--- a/src/lib/libflac/libFLAC/stream_decoder.c
+++ /dev/null
@@ -1,3390 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#if defined _MSC_VER || defined __MINGW32__
-#include <io.h> /* for _setmode() */
-#include <fcntl.h> /* for _O_BINARY */
-#endif
-#if defined __CYGWIN__ || defined __EMX__
-#include <io.h> /* for setmode(), O_BINARY */
-#include <fcntl.h> /* for _O_BINARY */
-#endif
-#include <stdio.h>
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memset/memcpy() */
-#include <sys/stat.h> /* for stat() */
-#include <sys/types.h> /* for off_t */
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ /* @@@ [2G limit] */
-#ifndef fseeko
-#define fseeko fseek
-#endif
-#ifndef ftello
-#define ftello ftell
-#endif
-#endif
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-#include "protected/stream_decoder.h"
-#include "private/bitreader.h"
-#include "private/bitmath.h"
-#include "private/cpu.h"
-#include "private/crc.h"
-#include "private/fixed.h"
-#include "private/format.h"
-#include "private/lpc.h"
-#include "private/md5.h"
-#include "private/memory.h"
-
-#ifdef max
-#undef max
-#endif
-#define max(a,b) ((a)>(b)?(a):(b))
-
-/* adjust for compilers that can't understand using LLU suffix for uint64_t literals */
-#ifdef _MSC_VER
-#define FLAC__U64L(x) x
-#else
-#define FLAC__U64L(x) x##LLU
-#endif
-
-
-/* technically this should be in an "export.c" but this is convenient enough */
-FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC =
-#if FLAC__HAS_OGG
- 1
-#else
- 0
-#endif
-;
-
-
-/***********************************************************************
- *
- * Private static data
- *
- ***********************************************************************/
-
-static FLAC__byte ID3V2_TAG_[3] = { 'I', 'D', '3' };
-
-/***********************************************************************
- *
- * Private class method prototypes
- *
- ***********************************************************************/
-
-static void set_defaults_(FLAC__StreamDecoder *decoder);
-static FILE *get_binary_stdin_(void);
-static FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels);
-static FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id);
-static FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length);
-static FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length);
-static FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj);
-static FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj);
-static FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj);
-static FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder);
-static FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode);
-static FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
-static FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, unsigned predictor_order, unsigned partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended);
-static FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data);
-#if FLAC__HAS_OGG
-static FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes);
-static FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-#endif
-static FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
-static void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status);
-static FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
-#if FLAC__HAS_OGG
-static FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
-#endif
-static FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-static FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-static FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-static FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
-static FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data);
-
-/***********************************************************************
- *
- * Private class data
- *
- ***********************************************************************/
-
-typedef struct FLAC__StreamDecoderPrivate {
-#if FLAC__HAS_OGG
- FLAC__bool is_ogg;
-#endif
- FLAC__StreamDecoderReadCallback read_callback;
- FLAC__StreamDecoderSeekCallback seek_callback;
- FLAC__StreamDecoderTellCallback tell_callback;
- FLAC__StreamDecoderLengthCallback length_callback;
- FLAC__StreamDecoderEofCallback eof_callback;
- FLAC__StreamDecoderWriteCallback write_callback;
- FLAC__StreamDecoderMetadataCallback metadata_callback;
- FLAC__StreamDecoderErrorCallback error_callback;
- /* generic 32-bit datapath: */
- void (*local_lpc_restore_signal)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- /* generic 64-bit datapath: */
- void (*local_lpc_restore_signal_64bit)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- /* for use when the signal is <= 16 bits-per-sample, or <= 15 bits-per-sample on a side channel (which requires 1 extra bit): */
- void (*local_lpc_restore_signal_16bit)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- /* for use when the signal is <= 16 bits-per-sample, or <= 15 bits-per-sample on a side channel (which requires 1 extra bit), AND order <= 8: */
- void (*local_lpc_restore_signal_16bit_order8)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- FLAC__bool (*local_bitreader_read_rice_signed_block)(FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter);
- void *client_data;
- FILE *file; /* only used if FLAC__stream_decoder_init_file()/FLAC__stream_decoder_init_file() called, else NULL */
- FLAC__BitReader *input;
- FLAC__int32 *output[FLAC__MAX_CHANNELS];
- FLAC__int32 *residual[FLAC__MAX_CHANNELS]; /* WATCHOUT: these are the aligned pointers; the real pointers that should be free()'d are residual_unaligned[] below */
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents[FLAC__MAX_CHANNELS];
- unsigned output_capacity, output_channels;
- FLAC__uint32 fixed_block_size, next_fixed_block_size;
- FLAC__uint64 samples_decoded;
- FLAC__bool has_stream_info, has_seek_table;
- FLAC__StreamMetadata stream_info;
- FLAC__StreamMetadata seek_table;
- FLAC__bool metadata_filter[128]; /* MAGIC number 128 == total number of metadata block types == 1 << 7 */
- FLAC__byte *metadata_filter_ids;
- size_t metadata_filter_ids_count, metadata_filter_ids_capacity; /* units for both are IDs, not bytes */
- FLAC__Frame frame;
- FLAC__bool cached; /* true if there is a byte in lookahead */
- FLAC__CPUInfo cpuinfo;
- FLAC__byte header_warmup[2]; /* contains the sync code and reserved bits */
- FLAC__byte lookahead; /* temp storage when we need to look ahead one byte in the stream */
- /* unaligned (original) pointers to allocated data */
- FLAC__int32 *residual_unaligned[FLAC__MAX_CHANNELS];
- FLAC__bool do_md5_checking; /* initially gets protected_->md5_checking but is turned off after a seek or if the metadata has a zero MD5 */
- FLAC__bool internal_reset_hack; /* used only during init() so we can call reset to set up the decoder without rewinding the input */
- FLAC__bool is_seeking;
- FLAC__MD5Context md5context;
- FLAC__byte computed_md5sum[16]; /* this is the sum we computed from the decoded data */
- /* (the rest of these are only used for seeking) */
- FLAC__Frame last_frame; /* holds the info of the last frame we seeked to */
- FLAC__uint64 first_frame_offset; /* hint to the seek routine of where in the stream the first audio frame starts */
- FLAC__uint64 target_sample;
- unsigned unparseable_frame_count; /* used to tell whether we're decoding a future version of FLAC or just got a bad sync */
-#if FLAC__HAS_OGG
- FLAC__bool got_a_frame; /* hack needed in Ogg FLAC seek routine to check when process_single() actually writes a frame */
-#endif
-} FLAC__StreamDecoderPrivate;
-
-/***********************************************************************
- *
- * Public static class data
- *
- ***********************************************************************/
-
-FLAC_API const char * const FLAC__StreamDecoderStateString[] = {
- "FLAC__STREAM_DECODER_SEARCH_FOR_METADATA",
- "FLAC__STREAM_DECODER_READ_METADATA",
- "FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC",
- "FLAC__STREAM_DECODER_READ_FRAME",
- "FLAC__STREAM_DECODER_END_OF_STREAM",
- "FLAC__STREAM_DECODER_OGG_ERROR",
- "FLAC__STREAM_DECODER_SEEK_ERROR",
- "FLAC__STREAM_DECODER_ABORTED",
- "FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
- "FLAC__STREAM_DECODER_UNINITIALIZED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderInitStatusString[] = {
- "FLAC__STREAM_DECODER_INIT_STATUS_OK",
- "FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
- "FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS",
- "FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE",
- "FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderReadStatusString[] = {
- "FLAC__STREAM_DECODER_READ_STATUS_CONTINUE",
- "FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM",
- "FLAC__STREAM_DECODER_READ_STATUS_ABORT"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderSeekStatusString[] = {
- "FLAC__STREAM_DECODER_SEEK_STATUS_OK",
- "FLAC__STREAM_DECODER_SEEK_STATUS_ERROR",
- "FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderTellStatusString[] = {
- "FLAC__STREAM_DECODER_TELL_STATUS_OK",
- "FLAC__STREAM_DECODER_TELL_STATUS_ERROR",
- "FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderLengthStatusString[] = {
- "FLAC__STREAM_DECODER_LENGTH_STATUS_OK",
- "FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR",
- "FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[] = {
- "FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE",
- "FLAC__STREAM_DECODER_WRITE_STATUS_ABORT"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[] = {
- "FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC",
- "FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER",
- "FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH",
- "FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM"
-};
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void)
-{
- FLAC__StreamDecoder *decoder;
- unsigned i;
-
- FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
-
- decoder = (FLAC__StreamDecoder*)calloc(1, sizeof(FLAC__StreamDecoder));
- if(decoder == 0) {
- return 0;
- }
-
- decoder->protected_ = (FLAC__StreamDecoderProtected*)calloc(1, sizeof(FLAC__StreamDecoderProtected));
- if(decoder->protected_ == 0) {
- free(decoder);
- return 0;
- }
-
- decoder->private_ = (FLAC__StreamDecoderPrivate*)calloc(1, sizeof(FLAC__StreamDecoderPrivate));
- if(decoder->private_ == 0) {
- free(decoder->protected_);
- free(decoder);
- return 0;
- }
-
- decoder->private_->input = FLAC__bitreader_new();
- if(decoder->private_->input == 0) {
- free(decoder->private_);
- free(decoder->protected_);
- free(decoder);
- return 0;
- }
-
- decoder->private_->metadata_filter_ids_capacity = 16;
- if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
- FLAC__bitreader_delete(decoder->private_->input);
- free(decoder->private_);
- free(decoder->protected_);
- free(decoder);
- return 0;
- }
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- decoder->private_->output[i] = 0;
- decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
- }
-
- decoder->private_->output_capacity = 0;
- decoder->private_->output_channels = 0;
- decoder->private_->has_seek_table = false;
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&decoder->private_->partitioned_rice_contents[i]);
-
- decoder->private_->file = 0;
-
- set_defaults_(decoder);
-
- decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
-
- return decoder;
-}
-
-FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->private_->input);
-
- (void)FLAC__stream_decoder_finish(decoder);
-
- if(0 != decoder->private_->metadata_filter_ids)
- free(decoder->private_->metadata_filter_ids);
-
- FLAC__bitreader_delete(decoder->private_->input);
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&decoder->private_->partitioned_rice_contents[i]);
-
- free(decoder->private_);
- free(decoder->protected_);
- free(decoder);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-static FLAC__StreamDecoderInitStatus init_stream_internal_(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FLAC__ASSERT(0 != decoder);
-
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
-
-#if !FLAC__HAS_OGG
- if(is_ogg)
- return FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
-#endif
-
- if(
- 0 == read_callback ||
- 0 == write_callback ||
- 0 == error_callback ||
- (seek_callback && (0 == tell_callback || 0 == length_callback || 0 == eof_callback))
- )
- return FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
-
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg = is_ogg;
- if(is_ogg && !FLAC__ogg_decoder_aspect_init(&decoder->protected_->ogg_decoder_aspect))
- return decoder->protected_->state = FLAC__STREAM_DECODER_OGG_ERROR;
-#endif
-
- /*
- * get the CPU info and set the function pointers
- */
- FLAC__cpu_info(&decoder->private_->cpuinfo);
- /* first default to the non-asm routines */
- decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal;
- decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide;
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal;
- decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal;
- decoder->private_->local_bitreader_read_rice_signed_block = FLAC__bitreader_read_rice_signed_block;
- /* now override with asm where appropriate */
-#ifndef FLAC__NO_ASM
- if(decoder->private_->cpuinfo.use_asm) {
-#ifdef FLAC__CPU_IA32
- FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
-#ifdef FLAC__HAS_NASM
-#if 1 /*@@@@@@ OPT: not clearly faster, needs more testing */
- if(decoder->private_->cpuinfo.data.ia32.bswap)
- decoder->private_->local_bitreader_read_rice_signed_block = FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap;
-#endif
- if(decoder->private_->cpuinfo.data.ia32.mmx) {
- decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32_mmx;
- decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal_asm_ia32_mmx;
- }
- else {
- decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32;
- decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal_asm_ia32;
- }
-#endif
-#elif defined FLAC__CPU_PPC
- FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_PPC);
- if(decoder->private_->cpuinfo.data.ppc.altivec) {
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ppc_altivec_16;
- decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8;
- }
-#endif
- }
-#endif
-
- /* from here on, errors are fatal */
-
- if(!FLAC__bitreader_init(decoder->private_->input, decoder->private_->cpuinfo, read_callback_, decoder)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
- }
-
- decoder->private_->read_callback = read_callback;
- decoder->private_->seek_callback = seek_callback;
- decoder->private_->tell_callback = tell_callback;
- decoder->private_->length_callback = length_callback;
- decoder->private_->eof_callback = eof_callback;
- decoder->private_->write_callback = write_callback;
- decoder->private_->metadata_callback = metadata_callback;
- decoder->private_->error_callback = error_callback;
- decoder->private_->client_data = client_data;
- decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
- decoder->private_->samples_decoded = 0;
- decoder->private_->has_stream_info = false;
- decoder->private_->cached = false;
-
- decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
- decoder->private_->is_seeking = false;
-
- decoder->private_->internal_reset_hack = true; /* so the following reset does not try to rewind the input */
- if(!FLAC__stream_decoder_reset(decoder)) {
- /* above call sets the state for us */
- return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
- }
-
- return FLAC__STREAM_DECODER_INIT_STATUS_OK;
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- decoder,
- read_callback,
- seek_callback,
- tell_callback,
- length_callback,
- eof_callback,
- write_callback,
- metadata_callback,
- error_callback,
- client_data,
- /*is_ogg=*/false
- );
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- decoder,
- read_callback,
- seek_callback,
- tell_callback,
- length_callback,
- eof_callback,
- write_callback,
- metadata_callback,
- error_callback,
- client_data,
- /*is_ogg=*/true
- );
-}
-
-static FLAC__StreamDecoderInitStatus init_FILE_internal_(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != file);
-
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- if(0 == write_callback || 0 == error_callback)
- return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * must assign the FILE pointer before any further error can occur in
- * this routine.
- */
- if(file == stdin)
- file = get_binary_stdin_(); /* just to be safe */
-
- decoder->private_->file = file;
-
- return init_stream_internal_(
- decoder,
- file_read_callback_,
- decoder->private_->file == stdin? 0: file_seek_callback_,
- decoder->private_->file == stdin? 0: file_tell_callback_,
- decoder->private_->file == stdin? 0: file_length_callback_,
- file_eof_callback_,
- write_callback,
- metadata_callback,
- error_callback,
- client_data,
- is_ogg
- );
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
-}
-
-static FLAC__StreamDecoderInitStatus init_file_internal_(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FILE *file;
-
- FLAC__ASSERT(0 != decoder);
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * have to do the same entrance checks here that are later performed
- * in FLAC__stream_decoder_init_FILE() before the FILE* is assigned.
- */
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- if(0 == write_callback || 0 == error_callback)
- return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
-
- file = filename? fopen(filename, "rb") : stdin;
-
- if(0 == file)
- return FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;
-
- return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, is_ogg);
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool md5_failed = false;
- unsigned i;
-
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
-
- if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
- return true;
-
- /* see the comment in FLAC__seekable_stream_decoder_reset() as to why we
- * always call FLAC__MD5Final()
- */
- FLAC__MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
-
- if(decoder->private_->has_seek_table && 0 != decoder->private_->seek_table.data.seek_table.points) {
- free(decoder->private_->seek_table.data.seek_table.points);
- decoder->private_->seek_table.data.seek_table.points = 0;
- decoder->private_->has_seek_table = false;
- }
- FLAC__bitreader_free(decoder->private_->input);
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- /* WATCHOUT:
- * FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the
- * output arrays have a buffer of up to 3 zeroes in front
- * (at negative indices) for alignment purposes; we use 4
- * to keep the data well-aligned.
- */
- if(0 != decoder->private_->output[i]) {
- free(decoder->private_->output[i]-4);
- decoder->private_->output[i] = 0;
- }
- if(0 != decoder->private_->residual_unaligned[i]) {
- free(decoder->private_->residual_unaligned[i]);
- decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
- }
- }
- decoder->private_->output_capacity = 0;
- decoder->private_->output_channels = 0;
-
-#if FLAC__HAS_OGG
- if(decoder->private_->is_ogg)
- FLAC__ogg_decoder_aspect_finish(&decoder->protected_->ogg_decoder_aspect);
-#endif
-
- if(0 != decoder->private_->file) {
- if(decoder->private_->file != stdin)
- fclose(decoder->private_->file);
- decoder->private_->file = 0;
- }
-
- if(decoder->private_->do_md5_checking) {
- if(memcmp(decoder->private_->stream_info.data.stream_info.md5sum, decoder->private_->computed_md5sum, 16))
- md5_failed = true;
- }
- decoder->private_->is_seeking = false;
-
- set_defaults_(decoder);
-
- decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
-
- return !md5_failed;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long value)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-#if FLAC__HAS_OGG
- /* can't check decoder->private_->is_ogg since that's not set until init time */
- FLAC__ogg_decoder_aspect_set_serial_number(&decoder->protected_->ogg_decoder_aspect, value);
- return true;
-#else
- (void)value;
- return false;
-#endif
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- decoder->protected_->md5_checking = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT((unsigned)type <= FLAC__MAX_METADATA_TYPE_CODE);
- /* double protection */
- if((unsigned)type > FLAC__MAX_METADATA_TYPE_CODE)
- return false;
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- decoder->private_->metadata_filter[type] = true;
- if(type == FLAC__METADATA_TYPE_APPLICATION)
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT(0 != id);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-
- if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
- return true;
-
- FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
-
- if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
- if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- decoder->private_->metadata_filter_ids_capacity *= 2;
- }
-
- memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
- decoder->private_->metadata_filter_ids_count++;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
-{
- unsigned i;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
- decoder->private_->metadata_filter[i] = true;
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT((unsigned)type <= FLAC__MAX_METADATA_TYPE_CODE);
- /* double protection */
- if((unsigned)type > FLAC__MAX_METADATA_TYPE_CODE)
- return false;
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- decoder->private_->metadata_filter[type] = false;
- if(type == FLAC__METADATA_TYPE_APPLICATION)
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT(0 != id);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-
- if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
- return true;
-
- FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
-
- if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
- if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- decoder->private_->metadata_filter_ids_capacity *= 2;
- }
-
- memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
- decoder->private_->metadata_filter_ids_count++;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->state;
-}
-
-FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder)
-{
- return FLAC__StreamDecoderStateString[decoder->protected_->state];
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->md5_checking;
-}
-
-FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->private_->has_stream_info? decoder->private_->stream_info.data.stream_info.total_samples : 0;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->channels;
-}
-
-FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->channel_assignment;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->bits_per_sample;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->sample_rate;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->blocksize;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != position);
-
-#if FLAC__HAS_OGG
- if(decoder->private_->is_ogg)
- return false;
-#endif
- if(0 == decoder->private_->tell_callback)
- return false;
- if(decoder->private_->tell_callback(decoder, position, decoder->private_->client_data) != FLAC__STREAM_DECODER_TELL_STATUS_OK)
- return false;
- /* should never happen since all FLAC frames and metadata blocks are byte aligned, but check just in case */
- if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input))
- return false;
- FLAC__ASSERT(*position >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder));
- *position -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
-
- decoder->private_->samples_decoded = 0;
- decoder->private_->do_md5_checking = false;
-
-#if FLAC__HAS_OGG
- if(decoder->private_->is_ogg)
- FLAC__ogg_decoder_aspect_flush(&decoder->protected_->ogg_decoder_aspect);
-#endif
-
- if(!FLAC__bitreader_clear(decoder->private_->input)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
-
- if(!FLAC__stream_decoder_flush(decoder)) {
- /* above call sets the state for us */
- return false;
- }
-
-#if FLAC__HAS_OGG
- /*@@@ could go in !internal_reset_hack block below */
- if(decoder->private_->is_ogg)
- FLAC__ogg_decoder_aspect_reset(&decoder->protected_->ogg_decoder_aspect);
-#endif
-
- /* Rewind if necessary. If FLAC__stream_decoder_init() is calling us,
- * (internal_reset_hack) don't try to rewind since we are already at
- * the beginning of the stream and don't want to fail if the input is
- * not seekable.
- */
- if(!decoder->private_->internal_reset_hack) {
- if(decoder->private_->file == stdin)
- return false; /* can't rewind stdin, reset fails */
- if(decoder->private_->seek_callback && decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
- return false; /* seekable and seek fails, reset fails */
- }
- else
- decoder->private_->internal_reset_hack = false;
-
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
-
- decoder->private_->has_stream_info = false;
- if(decoder->private_->has_seek_table && 0 != decoder->private_->seek_table.data.seek_table.points) {
- free(decoder->private_->seek_table.data.seek_table.points);
- decoder->private_->seek_table.data.seek_table.points = 0;
- decoder->private_->has_seek_table = false;
- }
- decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
- /*
- * This goes in reset() and not flush() because according to the spec, a
- * fixed-blocksize stream must stay that way through the whole stream.
- */
- decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
-
- /* We initialize the FLAC__MD5Context even though we may never use it. This
- * is because md5 checking may be turned on to start and then turned off if
- * a seek occurs. So we init the context here and finalize it in
- * FLAC__stream_decoder_finish() to make sure things are always cleaned up
- * properly.
- */
- FLAC__MD5Init(&decoder->private_->md5context);
-
- decoder->private_->first_frame_offset = 0;
- decoder->private_->unparseable_frame_count = 0;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool got_a_frame;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- if(!find_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_METADATA:
- if(!read_metadata_(decoder))
- return false; /* above function sets the status for us */
- else
- return true;
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- if(!frame_sync_(decoder))
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_FRAME:
- if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/true))
- return false; /* above function sets the status for us */
- if(got_a_frame)
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- if(!find_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_METADATA:
- if(!read_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- case FLAC__STREAM_DECODER_READ_FRAME:
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool dummy;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- if(!find_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_METADATA:
- if(!read_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- if(!frame_sync_(decoder))
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_FRAME:
- if(!read_frame_(decoder, &dummy, /*do_full_decode=*/true))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool got_a_frame;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- case FLAC__STREAM_DECODER_READ_METADATA:
- return false; /* above function sets the status for us */
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- if(!frame_sync_(decoder))
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_FRAME:
- if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/false))
- return false; /* above function sets the status for us */
- if(got_a_frame)
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample)
-{
- FLAC__uint64 length;
-
- FLAC__ASSERT(0 != decoder);
-
- if(
- decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_METADATA &&
- decoder->protected_->state != FLAC__STREAM_DECODER_READ_METADATA &&
- decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC &&
- decoder->protected_->state != FLAC__STREAM_DECODER_READ_FRAME &&
- decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM
- )
- return false;
-
- if(0 == decoder->private_->seek_callback)
- return false;
-
- FLAC__ASSERT(decoder->private_->seek_callback);
- FLAC__ASSERT(decoder->private_->tell_callback);
- FLAC__ASSERT(decoder->private_->length_callback);
- FLAC__ASSERT(decoder->private_->eof_callback);
-
- if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder))
- return false;
-
- decoder->private_->is_seeking = true;
-
- /* turn off md5 checking if a seek is attempted */
- decoder->private_->do_md5_checking = false;
-
- /* get the file length (currently our algorithm needs to know the length so it's also an error to get FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED) */
- if(decoder->private_->length_callback(decoder, &length, decoder->private_->client_data) != FLAC__STREAM_DECODER_LENGTH_STATUS_OK) {
- decoder->private_->is_seeking = false;
- return false;
- }
-
- /* if we haven't finished processing the metadata yet, do that so we have the STREAMINFO, SEEK_TABLE, and first_frame_offset */
- if(
- decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA ||
- decoder->protected_->state == FLAC__STREAM_DECODER_READ_METADATA
- ) {
- if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder)) {
- /* above call sets the state for us */
- decoder->private_->is_seeking = false;
- return false;
- }
- /* check this again in case we didn't know total_samples the first time */
- if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder)) {
- decoder->private_->is_seeking = false;
- return false;
- }
- }
-
- {
- const FLAC__bool ok =
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg?
- seek_to_absolute_sample_ogg_(decoder, length, sample) :
-#endif
- seek_to_absolute_sample_(decoder, length, sample)
- ;
- decoder->private_->is_seeking = false;
- return ok;
- }
-}
-
-/***********************************************************************
- *
- * Protected class methods
- *
- ***********************************************************************/
-
-unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
- FLAC__ASSERT(!(FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) & 7));
- return FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) / 8;
-}
-
-/***********************************************************************
- *
- * Private class methods
- *
- ***********************************************************************/
-
-void set_defaults_(FLAC__StreamDecoder *decoder)
-{
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg = false;
-#endif
- decoder->private_->read_callback = 0;
- decoder->private_->seek_callback = 0;
- decoder->private_->tell_callback = 0;
- decoder->private_->length_callback = 0;
- decoder->private_->eof_callback = 0;
- decoder->private_->write_callback = 0;
- decoder->private_->metadata_callback = 0;
- decoder->private_->error_callback = 0;
- decoder->private_->client_data = 0;
-
- memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
- decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
- decoder->private_->metadata_filter_ids_count = 0;
-
- decoder->protected_->md5_checking = false;
-
-#if FLAC__HAS_OGG
- FLAC__ogg_decoder_aspect_set_defaults(&decoder->protected_->ogg_decoder_aspect);
-#endif
-}
-
-/*
- * This will forcibly set stdin to binary mode (for OSes that require it)
- */
-FILE *get_binary_stdin_(void)
-{
- /* if something breaks here it is probably due to the presence or
- * absence of an underscore before the identifiers 'setmode',
- * 'fileno', and/or 'O_BINARY'; check your system header files.
- */
-#if defined _MSC_VER || defined __MINGW32__
- _setmode(_fileno(stdin), _O_BINARY);
-#elif defined __CYGWIN__
- /* almost certainly not needed for any modern Cygwin, but let's be safe... */
- setmode(_fileno(stdin), _O_BINARY);
-#elif defined __EMX__
- setmode(fileno(stdin), O_BINARY);
-#endif
-
- return stdin;
-}
-
-FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels)
-{
- unsigned i;
- FLAC__int32 *tmp;
-
- if(size <= decoder->private_->output_capacity && channels <= decoder->private_->output_channels)
- return true;
-
- /* simply using realloc() is not practical because the number of channels may change mid-stream */
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- if(0 != decoder->private_->output[i]) {
- free(decoder->private_->output[i]-4);
- decoder->private_->output[i] = 0;
- }
- if(0 != decoder->private_->residual_unaligned[i]) {
- free(decoder->private_->residual_unaligned[i]);
- decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
- }
- }
-
- for(i = 0; i < channels; i++) {
- /* WATCHOUT:
- * FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the
- * output arrays have a buffer of up to 3 zeroes in front
- * (at negative indices) for alignment purposes; we use 4
- * to keep the data well-aligned.
- */
- tmp = (FLAC__int32*)safe_malloc_muladd2_(sizeof(FLAC__int32), /*times (*/size, /*+*/4/*)*/);
- if(tmp == 0) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- memset(tmp, 0, sizeof(FLAC__int32)*4);
- decoder->private_->output[i] = tmp + 4;
-
- /* WATCHOUT:
- * minimum of quadword alignment for PPC vector optimizations is REQUIRED:
- */
- if(!FLAC__memory_alloc_aligned_int32_array(size, &decoder->private_->residual_unaligned[i], &decoder->private_->residual[i])) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- }
-
- decoder->private_->output_capacity = size;
- decoder->private_->output_channels = channels;
-
- return true;
-}
-
-FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id)
-{
- size_t i;
-
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
-
- for(i = 0; i < decoder->private_->metadata_filter_ids_count; i++)
- if(0 == memcmp(decoder->private_->metadata_filter_ids + i * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8)))
- return true;
-
- return false;
-}
-
-FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- unsigned i, id;
- FLAC__bool first = true;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- for(i = id = 0; i < 4; ) {
- if(decoder->private_->cached) {
- x = (FLAC__uint32)decoder->private_->lookahead;
- decoder->private_->cached = false;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- }
- if(x == FLAC__STREAM_SYNC_STRING[i]) {
- first = true;
- i++;
- id = 0;
- continue;
- }
- if(x == ID3V2_TAG_[id]) {
- id++;
- i = 0;
- if(id == 3) {
- if(!skip_id3v2_tag_(decoder))
- return false; /* skip_id3v2_tag_ sets the state for us */
- }
- continue;
- }
- id = 0;
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->header_warmup[0] = (FLAC__byte)x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
-
- /* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
- /* else we have to check if the second byte is the end of a sync code */
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->lookahead = (FLAC__byte)x;
- decoder->private_->cached = true;
- }
- else if(x >> 2 == 0x3e) { /* MAGIC NUMBER for the last 6 sync bits */
- decoder->private_->header_warmup[1] = (FLAC__byte)x;
- decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
- return true;
- }
- }
- i = 0;
- if(first) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- first = false;
- }
- }
-
- decoder->protected_->state = FLAC__STREAM_DECODER_READ_METADATA;
- return true;
-}
-
-FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool is_last;
- FLAC__uint32 i, x, type, length;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_IS_LAST_LEN))
- return false; /* read_callback_ sets the state for us */
- is_last = x? true : false;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &type, FLAC__STREAM_METADATA_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &length, FLAC__STREAM_METADATA_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(type == FLAC__METADATA_TYPE_STREAMINFO) {
- if(!read_metadata_streaminfo_(decoder, is_last, length))
- return false;
-
- decoder->private_->has_stream_info = true;
- if(0 == memcmp(decoder->private_->stream_info.data.stream_info.md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16))
- decoder->private_->do_md5_checking = false;
- if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] && decoder->private_->metadata_callback)
- decoder->private_->metadata_callback(decoder, &decoder->private_->stream_info, decoder->private_->client_data);
- }
- else if(type == FLAC__METADATA_TYPE_SEEKTABLE) {
- if(!read_metadata_seektable_(decoder, is_last, length))
- return false;
-
- decoder->private_->has_seek_table = true;
- if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_SEEKTABLE] && decoder->private_->metadata_callback)
- decoder->private_->metadata_callback(decoder, &decoder->private_->seek_table, decoder->private_->client_data);
- }
- else {
- FLAC__bool skip_it = !decoder->private_->metadata_filter[type];
- unsigned real_length = length;
- FLAC__StreamMetadata block;
-
- block.is_last = is_last;
- block.type = (FLAC__MetadataType)type;
- block.length = length;
- memset(&block.data, 0, sizeof(block.data));
-
- if(type == FLAC__METADATA_TYPE_APPLICATION) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
- return false; /* read_callback_ sets the state for us */
-
- if(real_length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) { /* underflow check */
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;/*@@@@@@ maybe wrong error? need to resync?*/
- return false;
- }
-
- real_length -= FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8;
-
- if(decoder->private_->metadata_filter_ids_count > 0 && has_id_filtered_(decoder, block.data.application.id))
- skip_it = !skip_it;
- }
-
- if(skip_it) {
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
- return false; /* read_callback_ sets the state for us */
- }
- else {
- switch(type) {
- case FLAC__METADATA_TYPE_PADDING:
- /* skip the padding bytes */
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
- return false; /* read_callback_ sets the state for us */
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- /* remember, we read the ID already */
- if(real_length > 0) {
- if(0 == (block.data.application.data = (FLAC__byte*)malloc(real_length))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.data, real_length))
- return false; /* read_callback_ sets the state for us */
- }
- else
- block.data.application.data = 0;
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(!read_metadata_vorbiscomment_(decoder, &block.data.vorbis_comment))
- return false;
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- if(!read_metadata_cuesheet_(decoder, &block.data.cue_sheet))
- return false;
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- if(!read_metadata_picture_(decoder, &block.data.picture))
- return false;
- break;
- case FLAC__METADATA_TYPE_STREAMINFO:
- case FLAC__METADATA_TYPE_SEEKTABLE:
- FLAC__ASSERT(0);
- break;
- default:
- if(real_length > 0) {
- if(0 == (block.data.unknown.data = (FLAC__byte*)malloc(real_length))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.unknown.data, real_length))
- return false; /* read_callback_ sets the state for us */
- }
- else
- block.data.unknown.data = 0;
- break;
- }
- if(!decoder->private_->is_seeking && decoder->private_->metadata_callback)
- decoder->private_->metadata_callback(decoder, &block, decoder->private_->client_data);
-
- /* now we have to free any malloc()ed data in the block */
- switch(type) {
- case FLAC__METADATA_TYPE_PADDING:
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if(0 != block.data.application.data)
- free(block.data.application.data);
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(0 != block.data.vorbis_comment.vendor_string.entry)
- free(block.data.vorbis_comment.vendor_string.entry);
- if(block.data.vorbis_comment.num_comments > 0)
- for(i = 0; i < block.data.vorbis_comment.num_comments; i++)
- if(0 != block.data.vorbis_comment.comments[i].entry)
- free(block.data.vorbis_comment.comments[i].entry);
- if(0 != block.data.vorbis_comment.comments)
- free(block.data.vorbis_comment.comments);
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- if(block.data.cue_sheet.num_tracks > 0)
- for(i = 0; i < block.data.cue_sheet.num_tracks; i++)
- if(0 != block.data.cue_sheet.tracks[i].indices)
- free(block.data.cue_sheet.tracks[i].indices);
- if(0 != block.data.cue_sheet.tracks)
- free(block.data.cue_sheet.tracks);
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- if(0 != block.data.picture.mime_type)
- free(block.data.picture.mime_type);
- if(0 != block.data.picture.description)
- free(block.data.picture.description);
- if(0 != block.data.picture.data)
- free(block.data.picture.data);
- break;
- case FLAC__METADATA_TYPE_STREAMINFO:
- case FLAC__METADATA_TYPE_SEEKTABLE:
- FLAC__ASSERT(0);
- default:
- if(0 != block.data.unknown.data)
- free(block.data.unknown.data);
- break;
- }
- }
- }
-
- if(is_last) {
- /* if this fails, it's OK, it's just a hint for the seek routine */
- if(!FLAC__stream_decoder_get_decode_position(decoder, &decoder->private_->first_frame_offset))
- decoder->private_->first_frame_offset = 0;
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
-{
- FLAC__uint32 x;
- unsigned bits, used_bits = 0;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- decoder->private_->stream_info.type = FLAC__METADATA_TYPE_STREAMINFO;
- decoder->private_->stream_info.is_last = is_last;
- decoder->private_->stream_info.length = length;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, bits))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.min_blocksize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.max_blocksize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.min_framesize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.max_framesize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.sample_rate = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.channels = x+1;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.bits_per_sample = x+1;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN;
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &decoder->private_->stream_info.data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
- return false; /* read_callback_ sets the state for us */
- used_bits += bits;
-
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, decoder->private_->stream_info.data.stream_info.md5sum, 16))
- return false; /* read_callback_ sets the state for us */
- used_bits += 16*8;
-
- /* skip the rest of the block */
- FLAC__ASSERT(used_bits % 8 == 0);
- length -= (used_bits / 8);
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
- return false; /* read_callback_ sets the state for us */
-
- return true;
-}
-
-FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
-{
- FLAC__uint32 i, x;
- FLAC__uint64 xx;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- decoder->private_->seek_table.type = FLAC__METADATA_TYPE_SEEKTABLE;
- decoder->private_->seek_table.is_last = is_last;
- decoder->private_->seek_table.length = length;
-
- decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
-
- /* use realloc since we may pass through here several times (e.g. after seeking) */
- if(0 == (decoder->private_->seek_table.data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)safe_realloc_mul_2op_(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(i = 0; i < decoder->private_->seek_table.data.seek_table.num_points; i++) {
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->seek_table.data.seek_table.points[i].sample_number = xx;
-
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->seek_table.data.seek_table.points[i].stream_offset = xx;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->seek_table.data.seek_table.points[i].frame_samples = x;
- }
- length -= (decoder->private_->seek_table.data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH);
- /* if there is a partial point left, skip over it */
- if(length > 0) {
- /*@@@ do a send_error_to_client_() here? there's an argument for either way */
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
- return false; /* read_callback_ sets the state for us */
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj)
-{
- FLAC__uint32 i;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- /* read vendor string */
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN == 32);
- if(!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->vendor_string.length))
- return false; /* read_callback_ sets the state for us */
- if(obj->vendor_string.length > 0) {
- if(0 == (obj->vendor_string.entry = (FLAC__byte*)safe_malloc_add_2op_(obj->vendor_string.length, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->vendor_string.entry, obj->vendor_string.length))
- return false; /* read_callback_ sets the state for us */
- obj->vendor_string.entry[obj->vendor_string.length] = '\0';
- }
- else
- obj->vendor_string.entry = 0;
-
- /* read num comments */
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN == 32);
- if(!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->num_comments))
- return false; /* read_callback_ sets the state for us */
-
- /* read comments */
- if(obj->num_comments > 0) {
- if(0 == (obj->comments = (FLAC__StreamMetadata_VorbisComment_Entry*)safe_malloc_mul_2op_(obj->num_comments, /*times*/sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(i = 0; i < obj->num_comments; i++) {
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN == 32);
- if(!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->comments[i].length))
- return false; /* read_callback_ sets the state for us */
- if(obj->comments[i].length > 0) {
- if(0 == (obj->comments[i].entry = (FLAC__byte*)safe_malloc_add_2op_(obj->comments[i].length, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->comments[i].entry, obj->comments[i].length))
- return false; /* read_callback_ sets the state for us */
- obj->comments[i].entry[obj->comments[i].length] = '\0';
- }
- else
- obj->comments[i].entry = 0;
- }
- }
- else {
- obj->comments = 0;
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj)
-{
- FLAC__uint32 i, j, x;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- memset(obj, 0, sizeof(FLAC__StreamMetadata_CueSheet));
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &obj->lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
- return false; /* read_callback_ sets the state for us */
- obj->is_cd = x? true : false;
-
- if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
- return false; /* read_callback_ sets the state for us */
- obj->num_tracks = x;
-
- if(obj->num_tracks > 0) {
- if(0 == (obj->tracks = (FLAC__StreamMetadata_CueSheet_Track*)safe_calloc_(obj->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(i = 0; i < obj->num_tracks; i++) {
- FLAC__StreamMetadata_CueSheet_Track *track = &obj->tracks[i];
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
- return false; /* read_callback_ sets the state for us */
- track->number = (FLAC__byte)x;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- track->type = x;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
- return false; /* read_callback_ sets the state for us */
- track->pre_emphasis = x;
-
- if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
- return false; /* read_callback_ sets the state for us */
- track->num_indices = (FLAC__byte)x;
-
- if(track->num_indices > 0) {
- if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)safe_calloc_(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(j = 0; j < track->num_indices; j++) {
- FLAC__StreamMetadata_CueSheet_Index *index = &track->indices[j];
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &index->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
- return false; /* read_callback_ sets the state for us */
- index->number = (FLAC__byte)x;
-
- if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
- return false; /* read_callback_ sets the state for us */
- }
- }
- }
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj)
-{
- FLAC__uint32 x;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- /* read type */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- obj->type = x;
-
- /* read MIME type */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
- if(0 == (obj->mime_type = (char*)safe_malloc_add_2op_(x, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(x > 0) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->mime_type, x))
- return false; /* read_callback_ sets the state for us */
- }
- obj->mime_type[x] = '\0';
-
- /* read description */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
- if(0 == (obj->description = (FLAC__byte*)safe_malloc_add_2op_(x, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(x > 0) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->description, x))
- return false; /* read_callback_ sets the state for us */
- }
- obj->description[x] = '\0';
-
- /* read width */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read height */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read depth */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read colors */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read data */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &(obj->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
- if(0 == (obj->data = (FLAC__byte*)safe_malloc_(obj->data_length))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(obj->data_length > 0) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->data, obj->data_length))
- return false; /* read_callback_ sets the state for us */
- }
-
- return true;
-}
-
-FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- unsigned i, skip;
-
- /* skip the version and flags bytes */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 24))
- return false; /* read_callback_ sets the state for us */
- /* get the size (in bytes) to skip */
- skip = 0;
- for(i = 0; i < 4; i++) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- skip <<= 7;
- skip |= (x & 0x7f);
- }
- /* skip the rest of the tag */
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, skip))
- return false; /* read_callback_ sets the state for us */
- return true;
-}
-
-FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- FLAC__bool first = true;
-
- /* If we know the total number of samples in the stream, stop if we've read that many. */
- /* This will stop us, for example, from wasting time trying to sync on an ID3V1 tag. */
- if(FLAC__stream_decoder_get_total_samples(decoder) > 0) {
- if(decoder->private_->samples_decoded >= FLAC__stream_decoder_get_total_samples(decoder)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
- return true;
- }
- }
-
- /* make sure we're byte aligned */
- if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
- return false; /* read_callback_ sets the state for us */
- }
-
- while(1) {
- if(decoder->private_->cached) {
- x = (FLAC__uint32)decoder->private_->lookahead;
- decoder->private_->cached = false;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- }
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->header_warmup[0] = (FLAC__byte)x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
-
- /* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
- /* else we have to check if the second byte is the end of a sync code */
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->lookahead = (FLAC__byte)x;
- decoder->private_->cached = true;
- }
- else if(x >> 2 == 0x3e) { /* MAGIC NUMBER for the last 6 sync bits */
- decoder->private_->header_warmup[1] = (FLAC__byte)x;
- decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
- return true;
- }
- }
- if(first) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- first = false;
- }
- }
-
- return true;
-}
-
-FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode)
-{
- unsigned channel;
- unsigned i;
- FLAC__int32 mid, side;
- unsigned frame_crc; /* the one we calculate from the input stream */
- FLAC__uint32 x;
-
- *got_a_frame = false;
-
- /* init the CRC */
- frame_crc = 0;
- frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[0], frame_crc);
- frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[1], frame_crc);
- FLAC__bitreader_reset_read_crc16(decoder->private_->input, (FLAC__uint16)frame_crc);
-
- if(!read_frame_header_(decoder))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means we didn't sync on a valid header */
- return true;
- if(!allocate_output_(decoder, decoder->private_->frame.header.blocksize, decoder->private_->frame.header.channels))
- return false;
- for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
- /*
- * first figure the correct bits-per-sample of the subframe
- */
- unsigned bps = decoder->private_->frame.header.bits_per_sample;
- switch(decoder->private_->frame.header.channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- /* no adjustment needed */
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- if(channel == 1)
- bps++;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- if(channel == 0)
- bps++;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- if(channel == 1)
- bps++;
- break;
- default:
- FLAC__ASSERT(0);
- }
- /*
- * now read it
- */
- if(!read_subframe_(decoder, channel, bps, do_full_decode))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
- return true;
- }
- if(!read_zero_padding_(decoder))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption (i.e. "zero bits" were not all zeroes) */
- return true;
-
- /*
- * Read the frame CRC-16 from the footer and check
- */
- frame_crc = FLAC__bitreader_get_read_crc16(decoder->private_->input);
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__FRAME_FOOTER_CRC_LEN))
- return false; /* read_callback_ sets the state for us */
- if(frame_crc == x) {
- if(do_full_decode) {
- /* Undo any special channel coding */
- switch(decoder->private_->frame.header.channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- /* do nothing */
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- decoder->private_->output[1][i] = decoder->private_->output[0][i] - decoder->private_->output[1][i];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- decoder->private_->output[0][i] += decoder->private_->output[1][i];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
-#if 1
- mid = decoder->private_->output[0][i];
- side = decoder->private_->output[1][i];
- mid <<= 1;
- mid |= (side & 1); /* i.e. if 'side' is odd... */
- decoder->private_->output[0][i] = (mid + side) >> 1;
- decoder->private_->output[1][i] = (mid - side) >> 1;
-#else
- /* OPT: without 'side' temp variable */
- mid = (decoder->private_->output[0][i] << 1) | (decoder->private_->output[1][i] & 1); /* i.e. if 'side' is odd... */
- decoder->private_->output[0][i] = (mid + decoder->private_->output[1][i]) >> 1;
- decoder->private_->output[1][i] = (mid - decoder->private_->output[1][i]) >> 1;
-#endif
- }
- break;
- default:
- FLAC__ASSERT(0);
- break;
- }
- }
- }
- else {
- /* Bad frame, emit error and zero the output signal */
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH);
- if(do_full_decode) {
- for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
- memset(decoder->private_->output[channel], 0, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
- }
- }
- }
-
- *got_a_frame = true;
-
- /* we wait to update fixed_block_size until here, when we're sure we've got a proper frame and hence a correct blocksize */
- if(decoder->private_->next_fixed_block_size)
- decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size;
-
- /* put the latest values into the public section of the decoder instance */
- decoder->protected_->channels = decoder->private_->frame.header.channels;
- decoder->protected_->channel_assignment = decoder->private_->frame.header.channel_assignment;
- decoder->protected_->bits_per_sample = decoder->private_->frame.header.bits_per_sample;
- decoder->protected_->sample_rate = decoder->private_->frame.header.sample_rate;
- decoder->protected_->blocksize = decoder->private_->frame.header.blocksize;
-
- FLAC__ASSERT(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
- decoder->private_->samples_decoded = decoder->private_->frame.header.number.sample_number + decoder->private_->frame.header.blocksize;
-
- /* write it */
- if(do_full_decode) {
- if(write_audio_frame_to_client_(decoder, &decoder->private_->frame, (const FLAC__int32 * const *)decoder->private_->output) != FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE)
- return false;
- }
-
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
-}
-
-FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- FLAC__uint64 xx;
- unsigned i, blocksize_hint = 0, sample_rate_hint = 0;
- FLAC__byte crc8, raw_header[16]; /* MAGIC NUMBER based on the maximum frame header size, including CRC */
- unsigned raw_header_len;
- FLAC__bool is_unparseable = false;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- /* init the raw header with the saved bits from synchronization */
- raw_header[0] = decoder->private_->header_warmup[0];
- raw_header[1] = decoder->private_->header_warmup[1];
- raw_header_len = 2;
-
- /* check to make sure that reserved bit is 0 */
- if(raw_header[1] & 0x02) /* MAGIC NUMBER */
- is_unparseable = true;
-
- /*
- * Note that along the way as we read the header, we look for a sync
- * code inside. If we find one it would indicate that our original
- * sync was bad since there cannot be a sync code in a valid header.
- *
- * Three kinds of things can go wrong when reading the frame header:
- * 1) We may have sync'ed incorrectly and not landed on a frame header.
- * If we don't find a sync code, it can end up looking like we read
- * a valid but unparseable header, until getting to the frame header
- * CRC. Even then we could get a false positive on the CRC.
- * 2) We may have sync'ed correctly but on an unparseable frame (from a
- * future encoder).
- * 3) We may be on a damaged frame which appears valid but unparseable.
- *
- * For all these reasons, we try and read a complete frame header as
- * long as it seems valid, even if unparseable, up until the frame
- * header CRC.
- */
-
- /*
- * read in the raw header as bytes so we can CRC it, and parse it on the way
- */
- for(i = 0; i < 2; i++) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- /* if we get here it means our original sync was erroneous since the sync code cannot appear in the header */
- decoder->private_->lookahead = (FLAC__byte)x;
- decoder->private_->cached = true;
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- raw_header[raw_header_len++] = (FLAC__byte)x;
- }
-
- switch(x = raw_header[2] >> 4) {
- case 0:
- is_unparseable = true;
- break;
- case 1:
- decoder->private_->frame.header.blocksize = 192;
- break;
- case 2:
- case 3:
- case 4:
- case 5:
- decoder->private_->frame.header.blocksize = 576 << (x-2);
- break;
- case 6:
- case 7:
- blocksize_hint = x;
- break;
- case 8:
- case 9:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- decoder->private_->frame.header.blocksize = 256 << (x-8);
- break;
- default:
- FLAC__ASSERT(0);
- break;
- }
-
- switch(x = raw_header[2] & 0x0f) {
- case 0:
- if(decoder->private_->has_stream_info)
- decoder->private_->frame.header.sample_rate = decoder->private_->stream_info.data.stream_info.sample_rate;
- else
- is_unparseable = true;
- break;
- case 1:
- decoder->private_->frame.header.sample_rate = 88200;
- break;
- case 2:
- decoder->private_->frame.header.sample_rate = 176400;
- break;
- case 3:
- decoder->private_->frame.header.sample_rate = 192000;
- break;
- case 4:
- decoder->private_->frame.header.sample_rate = 8000;
- break;
- case 5:
- decoder->private_->frame.header.sample_rate = 16000;
- break;
- case 6:
- decoder->private_->frame.header.sample_rate = 22050;
- break;
- case 7:
- decoder->private_->frame.header.sample_rate = 24000;
- break;
- case 8:
- decoder->private_->frame.header.sample_rate = 32000;
- break;
- case 9:
- decoder->private_->frame.header.sample_rate = 44100;
- break;
- case 10:
- decoder->private_->frame.header.sample_rate = 48000;
- break;
- case 11:
- decoder->private_->frame.header.sample_rate = 96000;
- break;
- case 12:
- case 13:
- case 14:
- sample_rate_hint = x;
- break;
- case 15:
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- default:
- FLAC__ASSERT(0);
- }
-
- x = (unsigned)(raw_header[3] >> 4);
- if(x & 8) {
- decoder->private_->frame.header.channels = 2;
- switch(x & 7) {
- case 0:
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE;
- break;
- case 1:
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE;
- break;
- case 2:
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_MID_SIDE;
- break;
- default:
- is_unparseable = true;
- break;
- }
- }
- else {
- decoder->private_->frame.header.channels = (unsigned)x + 1;
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
- }
-
- switch(x = (unsigned)(raw_header[3] & 0x0e) >> 1) {
- case 0:
- if(decoder->private_->has_stream_info)
- decoder->private_->frame.header.bits_per_sample = decoder->private_->stream_info.data.stream_info.bits_per_sample;
- else
- is_unparseable = true;
- break;
- case 1:
- decoder->private_->frame.header.bits_per_sample = 8;
- break;
- case 2:
- decoder->private_->frame.header.bits_per_sample = 12;
- break;
- case 4:
- decoder->private_->frame.header.bits_per_sample = 16;
- break;
- case 5:
- decoder->private_->frame.header.bits_per_sample = 20;
- break;
- case 6:
- decoder->private_->frame.header.bits_per_sample = 24;
- break;
- case 3:
- case 7:
- is_unparseable = true;
- break;
- default:
- FLAC__ASSERT(0);
- break;
- }
-
- /* check to make sure that reserved bit is 0 */
- if(raw_header[3] & 0x01) /* MAGIC NUMBER */
- is_unparseable = true;
-
- /* read the frame's starting sample number (or frame number as the case may be) */
- if(
- raw_header[1] & 0x01 ||
- /*@@@ this clause is a concession to the old way of doing variable blocksize; the only known implementation is flake and can probably be removed without inconveniencing anyone */
- (decoder->private_->has_stream_info && decoder->private_->stream_info.data.stream_info.min_blocksize != decoder->private_->stream_info.data.stream_info.max_blocksize)
- ) { /* variable blocksize */
- if(!FLAC__bitreader_read_utf8_uint64(decoder->private_->input, &xx, raw_header, &raw_header_len))
- return false; /* read_callback_ sets the state for us */
- if(xx == FLAC__U64L(0xffffffffffffffff)) { /* i.e. non-UTF8 code... */
- decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
- decoder->private_->cached = true;
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
- decoder->private_->frame.header.number.sample_number = xx;
- }
- else { /* fixed blocksize */
- if(!FLAC__bitreader_read_utf8_uint32(decoder->private_->input, &x, raw_header, &raw_header_len))
- return false; /* read_callback_ sets the state for us */
- if(x == 0xffffffff) { /* i.e. non-UTF8 code... */
- decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
- decoder->private_->cached = true;
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
- decoder->private_->frame.header.number.frame_number = x;
- }
-
- if(blocksize_hint) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)x;
- if(blocksize_hint == 7) {
- FLAC__uint32 _x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)_x;
- x = (x << 8) | _x;
- }
- decoder->private_->frame.header.blocksize = x+1;
- }
-
- if(sample_rate_hint) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)x;
- if(sample_rate_hint != 12) {
- FLAC__uint32 _x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)_x;
- x = (x << 8) | _x;
- }
- if(sample_rate_hint == 12)
- decoder->private_->frame.header.sample_rate = x*1000;
- else if(sample_rate_hint == 13)
- decoder->private_->frame.header.sample_rate = x;
- else
- decoder->private_->frame.header.sample_rate = x*10;
- }
-
- /* read the CRC-8 byte */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- crc8 = (FLAC__byte)x;
-
- if(FLAC__crc8(raw_header, raw_header_len) != crc8) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- /* calculate the sample number from the frame number if needed */
- decoder->private_->next_fixed_block_size = 0;
- if(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
- x = decoder->private_->frame.header.number.frame_number;
- decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
- if(decoder->private_->fixed_block_size)
- decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->fixed_block_size * (FLAC__uint64)x;
- else if(decoder->private_->has_stream_info) {
- if(decoder->private_->stream_info.data.stream_info.min_blocksize == decoder->private_->stream_info.data.stream_info.max_blocksize) {
- decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->stream_info.data.stream_info.min_blocksize * (FLAC__uint64)x;
- decoder->private_->next_fixed_block_size = decoder->private_->stream_info.data.stream_info.max_blocksize;
- }
- else
- is_unparseable = true;
- }
- else if(x == 0) {
- decoder->private_->frame.header.number.sample_number = 0;
- decoder->private_->next_fixed_block_size = decoder->private_->frame.header.blocksize;
- }
- else {
- /* can only get here if the stream has invalid frame numbering and no STREAMINFO, so assume it's not the last (possibly short) frame */
- decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->frame.header.blocksize * (FLAC__uint64)x;
- }
- }
-
- if(is_unparseable) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
-{
- FLAC__uint32 x;
- FLAC__bool wasted_bits;
- unsigned i;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8)) /* MAGIC NUMBER */
- return false; /* read_callback_ sets the state for us */
-
- wasted_bits = (x & 1);
- x &= 0xfe;
-
- if(wasted_bits) {
- unsigned u;
- if(!FLAC__bitreader_read_unary_unsigned(decoder->private_->input, &u))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->frame.subframes[channel].wasted_bits = u+1;
- bps -= decoder->private_->frame.subframes[channel].wasted_bits;
- }
- else
- decoder->private_->frame.subframes[channel].wasted_bits = 0;
-
- /*
- * Lots of magic numbers here
- */
- if(x & 0x80) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- else if(x == 0) {
- if(!read_subframe_constant_(decoder, channel, bps, do_full_decode))
- return false;
- }
- else if(x == 2) {
- if(!read_subframe_verbatim_(decoder, channel, bps, do_full_decode))
- return false;
- }
- else if(x < 16) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- else if(x <= 24) {
- if(!read_subframe_fixed_(decoder, channel, bps, (x>>1)&7, do_full_decode))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
- return true;
- }
- else if(x < 64) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- else {
- if(!read_subframe_lpc_(decoder, channel, bps, ((x>>1)&31)+1, do_full_decode))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
- return true;
- }
-
- if(wasted_bits && do_full_decode) {
- x = decoder->private_->frame.subframes[channel].wasted_bits;
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- decoder->private_->output[channel][i] <<= x;
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_Constant *subframe = &decoder->private_->frame.subframes[channel].data.constant;
- FLAC__int32 x;
- unsigned i;
- FLAC__int32 *output = decoder->private_->output[channel];
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_CONSTANT;
-
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
- return false; /* read_callback_ sets the state for us */
-
- subframe->value = x;
-
- /* decode the subframe */
- if(do_full_decode) {
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- output[i] = x;
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_Fixed *subframe = &decoder->private_->frame.subframes[channel].data.fixed;
- FLAC__int32 i32;
- FLAC__uint32 u32;
- unsigned u;
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_FIXED;
-
- subframe->residual = decoder->private_->residual[channel];
- subframe->order = order;
-
- /* read warm-up samples */
- for(u = 0; u < order; u++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
- return false; /* read_callback_ sets the state for us */
- subframe->warmup[u] = i32;
- }
-
- /* read entropy coding method info */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->entropy_coding_method.data.partitioned_rice.order = u32;
- subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
- break;
- default:
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- /* read residual */
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- /* decode the subframe */
- if(do_full_decode) {
- memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
- FLAC__fixed_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->output[channel]+order);
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_LPC *subframe = &decoder->private_->frame.subframes[channel].data.lpc;
- FLAC__int32 i32;
- FLAC__uint32 u32;
- unsigned u;
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_LPC;
-
- subframe->residual = decoder->private_->residual[channel];
- subframe->order = order;
-
- /* read warm-up samples */
- for(u = 0; u < order; u++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
- return false; /* read_callback_ sets the state for us */
- subframe->warmup[u] = i32;
- }
-
- /* read qlp coeff precision */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
- return false; /* read_callback_ sets the state for us */
- if(u32 == (1u << FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN) - 1) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- subframe->qlp_coeff_precision = u32+1;
-
- /* read qlp shift */
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->quantization_level = i32;
-
- /* read quantized lp coefficiencts */
- for(u = 0; u < order; u++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, subframe->qlp_coeff_precision))
- return false; /* read_callback_ sets the state for us */
- subframe->qlp_coeff[u] = i32;
- }
-
- /* read entropy coding method info */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->entropy_coding_method.data.partitioned_rice.order = u32;
- subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
- break;
- default:
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- /* read residual */
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- /* decode the subframe */
- if(do_full_decode) {
- memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
- /*@@@@@@ technically not pessimistic enough, should be more like
- if( (FLAC__uint64)order * ((((FLAC__uint64)1)<<bps)-1) * ((1<<subframe->qlp_coeff_precision)-1) < (((FLAC__uint64)-1) << 32) )
- */
- if(bps + subframe->qlp_coeff_precision + FLAC__bitmath_ilog2(order) <= 32)
- if(bps <= 16 && subframe->qlp_coeff_precision <= 16) {
- if(order <= 8)
- decoder->private_->local_lpc_restore_signal_16bit_order8(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- else
- decoder->private_->local_lpc_restore_signal_16bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- }
- else
- decoder->private_->local_lpc_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- else
- decoder->private_->local_lpc_restore_signal_64bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_Verbatim *subframe = &decoder->private_->frame.subframes[channel].data.verbatim;
- FLAC__int32 x, *residual = decoder->private_->residual[channel];
- unsigned i;
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_VERBATIM;
-
- subframe->data = residual;
-
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
- return false; /* read_callback_ sets the state for us */
- residual[i] = x;
- }
-
- /* decode the subframe */
- if(do_full_decode)
- memcpy(decoder->private_->output[channel], subframe->data, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
-
- return true;
-}
-
-FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, unsigned predictor_order, unsigned partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended)
-{
- FLAC__uint32 rice_parameter;
- int i;
- unsigned partition, sample, u;
- const unsigned partitions = 1u << partition_order;
- const unsigned partition_samples = partition_order > 0? decoder->private_->frame.header.blocksize >> partition_order : decoder->private_->frame.header.blocksize - predictor_order;
- const unsigned plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
- const unsigned pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-
- /* sanity checks */
- if(partition_order == 0) {
- if(decoder->private_->frame.header.blocksize < predictor_order) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- }
- else {
- if(partition_samples < predictor_order) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- }
-
- if(!FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(partitioned_rice_contents, max(6, partition_order))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- sample = 0;
- for(partition = 0; partition < partitions; partition++) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, plen))
- return false; /* read_callback_ sets the state for us */
- partitioned_rice_contents->parameters[partition] = rice_parameter;
- if(rice_parameter < pesc) {
- partitioned_rice_contents->raw_bits[partition] = 0;
- u = (partition_order == 0 || partition > 0)? partition_samples : partition_samples - predictor_order;
- if(!decoder->private_->local_bitreader_read_rice_signed_block(decoder->private_->input, residual + sample, u, rice_parameter))
- return false; /* read_callback_ sets the state for us */
- sample += u;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
- return false; /* read_callback_ sets the state for us */
- partitioned_rice_contents->raw_bits[partition] = rice_parameter;
- for(u = (partition_order == 0 || partition > 0)? 0 : predictor_order; u < partition_samples; u++, sample++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i, rice_parameter))
- return false; /* read_callback_ sets the state for us */
- residual[sample] = i;
- }
- }
- }
-
- return true;
-}
-
-FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder)
-{
- if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
- FLAC__uint32 zero = 0;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &zero, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
- return false; /* read_callback_ sets the state for us */
- if(zero != 0) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- }
- }
- return true;
-}
-
-FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder *)client_data;
-
- if(
-#if FLAC__HAS_OGG
- /* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
- !decoder->private_->is_ogg &&
-#endif
- decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
- ) {
- *bytes = 0;
- decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
- return false;
- }
- else if(*bytes > 0) {
- /* While seeking, it is possible for our seek to land in the
- * middle of audio data that looks exactly like a frame header
- * from a future version of an encoder. When that happens, our
- * error callback will get an
- * FLAC__STREAM_DECODER_UNPARSEABLE_STREAM and increment its
- * unparseable_frame_count. But there is a remote possibility
- * that it is properly synced at such a "future-codec frame",
- * so to make sure, we wait to see many "unparseable" errors in
- * a row before bailing out.
- */
- if(decoder->private_->is_seeking && decoder->private_->unparseable_frame_count > 20) {
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- else {
- const FLAC__StreamDecoderReadStatus status =
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg?
- read_callback_ogg_aspect_(decoder, buffer, bytes) :
-#endif
- decoder->private_->read_callback(decoder, buffer, bytes, decoder->private_->client_data)
- ;
- if(status == FLAC__STREAM_DECODER_READ_STATUS_ABORT) {
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- else if(*bytes == 0) {
- if(
- status == FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM ||
- (
-#if FLAC__HAS_OGG
- /* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
- !decoder->private_->is_ogg &&
-#endif
- decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
- )
- ) {
- decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
- return false;
- }
- else
- return true;
- }
- else
- return true;
- }
- }
- else {
- /* abort to avoid a deadlock */
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- /* [1] @@@ HACK NOTE: The end-of-stream checking has to be hacked around
- * for Ogg FLAC. This is because the ogg decoder aspect can lose sync
- * and at the same time hit the end of the stream (for example, seeking
- * to a point that is after the beginning of the last Ogg page). There
- * is no way to report an Ogg sync loss through the callbacks (see note
- * in read_callback_ogg_aspect_()) so it returns CONTINUE with *bytes==0.
- * So to keep the decoder from stopping at this point we gate the call
- * to the eof_callback and let the Ogg decoder aspect set the
- * end-of-stream state when it is needed.
- */
-}
-
-#if FLAC__HAS_OGG
-FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes)
-{
- switch(FLAC__ogg_decoder_aspect_read_callback_wrapper(&decoder->protected_->ogg_decoder_aspect, buffer, bytes, read_callback_proxy_, decoder, decoder->private_->client_data)) {
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- /* we don't really have a way to handle lost sync via read
- * callback so we'll let it pass and let the underlying
- * FLAC decoder catch the error
- */
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC:
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
- return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR:
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- default:
- FLAC__ASSERT(0);
- /* double protection */
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- }
-}
-
-FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder*)void_decoder;
-
- switch(decoder->private_->read_callback(decoder, buffer, bytes, client_data)) {
- case FLAC__STREAM_DECODER_READ_STATUS_CONTINUE:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
- case FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
- case FLAC__STREAM_DECODER_READ_STATUS_ABORT:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
- default:
- /* double protection: */
- FLAC__ASSERT(0);
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
- }
-}
-#endif
-
-FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[])
-{
- if(decoder->private_->is_seeking) {
- FLAC__uint64 this_frame_sample = frame->header.number.sample_number;
- FLAC__uint64 next_frame_sample = this_frame_sample + (FLAC__uint64)frame->header.blocksize;
- FLAC__uint64 target_sample = decoder->private_->target_sample;
-
- FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
-
-#if FLAC__HAS_OGG
- decoder->private_->got_a_frame = true;
-#endif
- decoder->private_->last_frame = *frame; /* save the frame */
- if(this_frame_sample <= target_sample && target_sample < next_frame_sample) { /* we hit our target frame */
- unsigned delta = (unsigned)(target_sample - this_frame_sample);
- /* kick out of seek mode */
- decoder->private_->is_seeking = false;
- /* shift out the samples before target_sample */
- if(delta > 0) {
- unsigned channel;
- const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS];
- for(channel = 0; channel < frame->header.channels; channel++)
- newbuffer[channel] = buffer[channel] + delta;
- decoder->private_->last_frame.header.blocksize -= delta;
- decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
- /* write the relevant samples */
- return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, newbuffer, decoder->private_->client_data);
- }
- else {
- /* write the relevant samples */
- return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
- }
- }
- else {
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
- }
- }
- else {
- /*
- * If we never got STREAMINFO, turn off MD5 checking to save
- * cycles since we don't have a sum to compare to anyway
- */
- if(!decoder->private_->has_stream_info)
- decoder->private_->do_md5_checking = false;
- if(decoder->private_->do_md5_checking) {
- if(!FLAC__MD5Accumulate(&decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
- }
- return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
- }
-}
-
-void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status)
-{
- if(!decoder->private_->is_seeking)
- decoder->private_->error_callback(decoder, status, decoder->private_->client_data);
- else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
- decoder->private_->unparseable_frame_count++;
-}
-
-FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
-{
- FLAC__uint64 first_frame_offset = decoder->private_->first_frame_offset, lower_bound, upper_bound, lower_bound_sample, upper_bound_sample, this_frame_sample;
- FLAC__int64 pos = -1;
- int i;
- unsigned approx_bytes_per_frame;
- FLAC__bool first_seek = true;
- const FLAC__uint64 total_samples = FLAC__stream_decoder_get_total_samples(decoder);
- const unsigned min_blocksize = decoder->private_->stream_info.data.stream_info.min_blocksize;
- const unsigned max_blocksize = decoder->private_->stream_info.data.stream_info.max_blocksize;
- const unsigned max_framesize = decoder->private_->stream_info.data.stream_info.max_framesize;
- const unsigned min_framesize = decoder->private_->stream_info.data.stream_info.min_framesize;
- /* take these from the current frame in case they've changed mid-stream */
- unsigned channels = FLAC__stream_decoder_get_channels(decoder);
- unsigned bps = FLAC__stream_decoder_get_bits_per_sample(decoder);
- const FLAC__StreamMetadata_SeekTable *seek_table = decoder->private_->has_seek_table? &decoder->private_->seek_table.data.seek_table : 0;
-
- /* use values from stream info if we didn't decode a frame */
- if(channels == 0)
- channels = decoder->private_->stream_info.data.stream_info.channels;
- if(bps == 0)
- bps = decoder->private_->stream_info.data.stream_info.bits_per_sample;
-
- /* we are just guessing here */
- if(max_framesize > 0)
- approx_bytes_per_frame = (max_framesize + min_framesize) / 2 + 1;
- /*
- * Check if it's a known fixed-blocksize stream. Note that though
- * the spec doesn't allow zeroes in the STREAMINFO block, we may
- * never get a STREAMINFO block when decoding so the value of
- * min_blocksize might be zero.
- */
- else if(min_blocksize == max_blocksize && min_blocksize > 0) {
- /* note there are no () around 'bps/8' to keep precision up since it's an integer calulation */
- approx_bytes_per_frame = min_blocksize * channels * bps/8 + 64;
- }
- else
- approx_bytes_per_frame = 4096 * channels * bps/8 + 64;
-
- /*
- * First, we set an upper and lower bound on where in the
- * stream we will search. For now we assume the worst case
- * scenario, which is our best guess at the beginning of
- * the first frame and end of the stream.
- */
- lower_bound = first_frame_offset;
- lower_bound_sample = 0;
- upper_bound = stream_length;
- upper_bound_sample = total_samples > 0 ? total_samples : target_sample /*estimate it*/;
-
- /*
- * Now we refine the bounds if we have a seektable with
- * suitable points. Note that according to the spec they
- * must be ordered by ascending sample number.
- *
- * Note: to protect against invalid seek tables we will ignore points
- * that have frame_samples==0 or sample_number>=total_samples
- */
- if(seek_table) {
- FLAC__uint64 new_lower_bound = lower_bound;
- FLAC__uint64 new_upper_bound = upper_bound;
- FLAC__uint64 new_lower_bound_sample = lower_bound_sample;
- FLAC__uint64 new_upper_bound_sample = upper_bound_sample;
-
- /* find the closest seek point <= target_sample, if it exists */
- for(i = (int)seek_table->num_points - 1; i >= 0; i--) {
- if(
- seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
- seek_table->points[i].frame_samples > 0 && /* defense against bad seekpoints */
- (total_samples <= 0 || seek_table->points[i].sample_number < total_samples) && /* defense against bad seekpoints */
- seek_table->points[i].sample_number <= target_sample
- )
- break;
- }
- if(i >= 0) { /* i.e. we found a suitable seek point... */
- new_lower_bound = first_frame_offset + seek_table->points[i].stream_offset;
- new_lower_bound_sample = seek_table->points[i].sample_number;
- }
-
- /* find the closest seek point > target_sample, if it exists */
- for(i = 0; i < (int)seek_table->num_points; i++) {
- if(
- seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
- seek_table->points[i].frame_samples > 0 && /* defense against bad seekpoints */
- (total_samples <= 0 || seek_table->points[i].sample_number < total_samples) && /* defense against bad seekpoints */
- seek_table->points[i].sample_number > target_sample
- )
- break;
- }
- if(i < (int)seek_table->num_points) { /* i.e. we found a suitable seek point... */
- new_upper_bound = first_frame_offset + seek_table->points[i].stream_offset;
- new_upper_bound_sample = seek_table->points[i].sample_number;
- }
- /* final protection against unsorted seek tables; keep original values if bogus */
- if(new_upper_bound >= new_lower_bound) {
- lower_bound = new_lower_bound;
- upper_bound = new_upper_bound;
- lower_bound_sample = new_lower_bound_sample;
- upper_bound_sample = new_upper_bound_sample;
- }
- }
-
- FLAC__ASSERT(upper_bound_sample >= lower_bound_sample);
- /* there are 2 insidious ways that the following equality occurs, which
- * we need to fix:
- * 1) total_samples is 0 (unknown) and target_sample is 0
- * 2) total_samples is 0 (unknown) and target_sample happens to be
- * exactly equal to the last seek point in the seek table; this
- * means there is no seek point above it, and upper_bound_samples
- * remains equal to the estimate (of target_samples) we made above
- * in either case it does not hurt to move upper_bound_sample up by 1
- */
- if(upper_bound_sample == lower_bound_sample)
- upper_bound_sample++;
-
- decoder->private_->target_sample = target_sample;
- while(1) {
- /* check if the bounds are still ok */
- if (lower_bound_sample >= upper_bound_sample || lower_bound > upper_bound) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if defined _MSC_VER || defined __MINGW32__
- /* with VC++ you have to spoon feed it the casting */
- pos = (FLAC__int64)lower_bound + (FLAC__int64)((FLAC__double)(FLAC__int64)(target_sample - lower_bound_sample) / (FLAC__double)(FLAC__int64)(upper_bound_sample - lower_bound_sample) * (FLAC__double)(FLAC__int64)(upper_bound - lower_bound)) - approx_bytes_per_frame;
-#else
- pos = (FLAC__int64)lower_bound + (FLAC__int64)((FLAC__double)(target_sample - lower_bound_sample) / (FLAC__double)(upper_bound_sample - lower_bound_sample) * (FLAC__double)(upper_bound - lower_bound)) - approx_bytes_per_frame;
-#endif
-#else
- /* a little less accurate: */
- if(upper_bound - lower_bound < 0xffffffff)
- pos = (FLAC__int64)lower_bound + (FLAC__int64)(((target_sample - lower_bound_sample) * (upper_bound - lower_bound)) / (upper_bound_sample - lower_bound_sample)) - approx_bytes_per_frame;
- else /* @@@ WATCHOUT, ~2TB limit */
- pos = (FLAC__int64)lower_bound + (FLAC__int64)((((target_sample - lower_bound_sample)>>8) * ((upper_bound - lower_bound)>>8)) / ((upper_bound_sample - lower_bound_sample)>>16)) - approx_bytes_per_frame;
-#endif
- if(pos >= (FLAC__int64)upper_bound)
- pos = (FLAC__int64)upper_bound - 1;
- if(pos < (FLAC__int64)lower_bound)
- pos = (FLAC__int64)lower_bound;
- if(decoder->private_->seek_callback(decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- if(!FLAC__stream_decoder_flush(decoder)) {
- /* above call sets the state for us */
- return false;
- }
- /* Now we need to get a frame. First we need to reset our
- * unparseable_frame_count; if we get too many unparseable
- * frames in a row, the read callback will return
- * FLAC__STREAM_DECODER_READ_STATUS_ABORT, causing
- * FLAC__stream_decoder_process_single() to return false.
- */
- decoder->private_->unparseable_frame_count = 0;
- if(!FLAC__stream_decoder_process_single(decoder)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- /* our write callback will change the state when it gets to the target frame */
- /* actually, we could have got_a_frame if our decoder is at FLAC__STREAM_DECODER_END_OF_STREAM so we need to check for that also */
-#if 0
- /*@@@@@@ used to be the following; not clear if the check for end of stream is needed anymore */
- if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING && decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM)
- break;
-#endif
- if(!decoder->private_->is_seeking)
- break;
-
- FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
- this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
-
- if (0 == decoder->private_->samples_decoded || (this_frame_sample + decoder->private_->last_frame.header.blocksize >= upper_bound_sample && !first_seek)) {
- if (pos == (FLAC__int64)lower_bound) {
- /* can't move back any more than the first frame, something is fatally wrong */
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- /* our last move backwards wasn't big enough, try again */
- approx_bytes_per_frame = approx_bytes_per_frame? approx_bytes_per_frame * 2 : 16;
- continue;
- }
- /* allow one seek over upper bound, so we can get a correct upper_bound_sample for streams with unknown total_samples */
- first_seek = false;
-
- /* make sure we are not seeking in corrupted stream */
- if (this_frame_sample < lower_bound_sample) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
-
- /* we need to narrow the search */
- if(target_sample < this_frame_sample) {
- upper_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
-/*@@@@@@ what will decode position be if at end of stream? */
- if(!FLAC__stream_decoder_get_decode_position(decoder, &upper_bound)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- approx_bytes_per_frame = (unsigned)(2 * (upper_bound - pos) / 3 + 16);
- }
- else { /* target_sample >= this_frame_sample + this frame's blocksize */
- lower_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
- if(!FLAC__stream_decoder_get_decode_position(decoder, &lower_bound)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- approx_bytes_per_frame = (unsigned)(2 * (lower_bound - pos) / 3 + 16);
- }
- }
-
- return true;
-}
-
-#if FLAC__HAS_OGG
-FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
-{
- FLAC__uint64 left_pos = 0, right_pos = stream_length;
- FLAC__uint64 left_sample = 0, right_sample = FLAC__stream_decoder_get_total_samples(decoder);
- FLAC__uint64 this_frame_sample = (FLAC__uint64)0 - 1;
- FLAC__uint64 pos = 0; /* only initialized to avoid compiler warning */
- FLAC__bool did_a_seek;
- unsigned iteration = 0;
-
- /* In the first iterations, we will calculate the target byte position
- * by the distance from the target sample to left_sample and
- * right_sample (let's call it "proportional search"). After that, we
- * will switch to binary search.
- */
- unsigned BINARY_SEARCH_AFTER_ITERATION = 2;
-
- /* We will switch to a linear search once our current sample is less
- * than this number of samples ahead of the target sample
- */
- static const FLAC__uint64 LINEAR_SEARCH_WITHIN_SAMPLES = FLAC__MAX_BLOCK_SIZE * 2;
-
- /* If the total number of samples is unknown, use a large value, and
- * force binary search immediately.
- */
- if(right_sample == 0) {
- right_sample = (FLAC__uint64)(-1);
- BINARY_SEARCH_AFTER_ITERATION = 0;
- }
-
- decoder->private_->target_sample = target_sample;
- for( ; ; iteration++) {
- if (iteration == 0 || this_frame_sample > target_sample || target_sample - this_frame_sample > LINEAR_SEARCH_WITHIN_SAMPLES) {
- if (iteration >= BINARY_SEARCH_AFTER_ITERATION) {
- pos = (right_pos + left_pos) / 2;
- }
- else {
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if defined _MSC_VER || defined __MINGW32__
- /* with MSVC you have to spoon feed it the casting */
- pos = (FLAC__uint64)((FLAC__double)(FLAC__int64)(target_sample - left_sample) / (FLAC__double)(FLAC__int64)(right_sample - left_sample) * (FLAC__double)(FLAC__int64)(right_pos - left_pos));
-#else
- pos = (FLAC__uint64)((FLAC__double)(target_sample - left_sample) / (FLAC__double)(right_sample - left_sample) * (FLAC__double)(right_pos - left_pos));
-#endif
-#else
- /* a little less accurate: */
- if ((target_sample-left_sample <= 0xffffffff) && (right_pos-left_pos <= 0xffffffff))
- pos = (FLAC__int64)(((target_sample-left_sample) * (right_pos-left_pos)) / (right_sample-left_sample));
- else /* @@@ WATCHOUT, ~2TB limit */
- pos = (FLAC__int64)((((target_sample-left_sample)>>8) * ((right_pos-left_pos)>>8)) / ((right_sample-left_sample)>>16));
-#endif
- /* @@@ TODO: might want to limit pos to some distance
- * before EOF, to make sure we land before the last frame,
- * thereby getting a this_frame_sample and so having a better
- * estimate.
- */
- }
-
- /* physical seek */
- if(decoder->private_->seek_callback((FLAC__StreamDecoder*)decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- if(!FLAC__stream_decoder_flush(decoder)) {
- /* above call sets the state for us */
- return false;
- }
- did_a_seek = true;
- }
- else
- did_a_seek = false;
-
- decoder->private_->got_a_frame = false;
- if(!FLAC__stream_decoder_process_single(decoder)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- if(!decoder->private_->got_a_frame) {
- if(did_a_seek) {
- /* this can happen if we seek to a point after the last frame; we drop
- * to binary search right away in this case to avoid any wasted
- * iterations of proportional search.
- */
- right_pos = pos;
- BINARY_SEARCH_AFTER_ITERATION = 0;
- }
- else {
- /* this can probably only happen if total_samples is unknown and the
- * target_sample is past the end of the stream
- */
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- }
- /* our write callback will change the state when it gets to the target frame */
- else if(!decoder->private_->is_seeking) {
- break;
- }
- else {
- this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
- FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
-
- if (did_a_seek) {
- if (this_frame_sample <= target_sample) {
- /* The 'equal' case should not happen, since
- * FLAC__stream_decoder_process_single()
- * should recognize that it has hit the
- * target sample and we would exit through
- * the 'break' above.
- */
- FLAC__ASSERT(this_frame_sample != target_sample);
-
- left_sample = this_frame_sample;
- /* sanity check to avoid infinite loop */
- if (left_pos == pos) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- left_pos = pos;
- }
- else if(this_frame_sample > target_sample) {
- right_sample = this_frame_sample;
- /* sanity check to avoid infinite loop */
- if (right_pos == pos) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- right_pos = pos;
- }
- }
- }
- }
-
- return true;
-}
-#endif
-
-FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- (void)client_data;
-
- if(*bytes > 0) {
- *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, decoder->private_->file);
- if(ferror(decoder->private_->file))
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- else if(*bytes == 0)
- return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- else
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- }
- else
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT; /* abort to avoid a deadlock */
-}
-
-FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
-{
- (void)client_data;
-
- if(decoder->private_->file == stdin)
- return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
- else if(fseeko(decoder->private_->file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
- return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
- else
- return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
-}
-
-FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
-{
- off_t pos;
- (void)client_data;
-
- if(decoder->private_->file == stdin)
- return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
- else if((pos = ftello(decoder->private_->file)) < 0)
- return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
- else {
- *absolute_byte_offset = (FLAC__uint64)pos;
- return FLAC__STREAM_DECODER_TELL_STATUS_OK;
- }
-}
-
-FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
-{
- struct stat filestats;
- (void)client_data;
-
- if(decoder->private_->file == stdin)
- return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
- else if(fstat(fileno(decoder->private_->file), &filestats) != 0)
- return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
- else {
- *stream_length = (FLAC__uint64)filestats.st_size;
- return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
- }
-}
-
-FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data)
-{
- (void)client_data;
-
- return feof(decoder->private_->file)? true : false;
-}
diff --git a/src/lib/libflac/libFLAC/stream_encoder.c b/src/lib/libflac/libFLAC/stream_encoder.c
deleted file mode 100644
index 8f139eb83e3..00000000000
--- a/src/lib/libflac/libFLAC/stream_encoder.c
+++ /dev/null
@@ -1,4361 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#if defined _MSC_VER || defined __MINGW32__
-#include <io.h> /* for _setmode() */
-#include <fcntl.h> /* for _O_BINARY */
-#endif
-#if defined __CYGWIN__ || defined __EMX__
-#include <io.h> /* for setmode(), O_BINARY */
-#include <fcntl.h> /* for _O_BINARY */
-#endif
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcpy() */
-#include <sys/types.h> /* for off_t */
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ /* @@@ [2G limit] */
-#ifndef fseeko
-#define fseeko fseek
-#endif
-#ifndef ftello
-#define ftello ftell
-#endif
-#endif
-#include "FLAC/assert.h"
-#include "FLAC/stream_decoder.h"
-#include "share/alloc.h"
-#include "protected/stream_encoder.h"
-#include "private/bitwriter.h"
-#include "private/bitmath.h"
-#include "private/crc.h"
-#include "private/cpu.h"
-#include "private/fixed.h"
-#include "private/format.h"
-#include "private/lpc.h"
-#include "private/md5.h"
-#include "private/memory.h"
-#if FLAC__HAS_OGG
-#include "private/ogg_helper.h"
-#include "private/ogg_mapping.h"
-#endif
-#include "private/stream_encoder_framing.h"
-#include "private/window.h"
-
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
-#ifdef min
-#undef min
-#endif
-#define min(x,y) ((x)<(y)?(x):(y))
-
-#ifdef max
-#undef max
-#endif
-#define max(x,y) ((x)>(y)?(x):(y))
-
-/* Exact Rice codeword length calculation is off by default. The simple
- * (and fast) estimation (of how many bits a residual value will be
- * encoded with) in this encoder is very good, almost always yielding
- * compression within 0.1% of exact calculation.
- */
-#undef EXACT_RICE_BITS_CALCULATION
-/* Rice parameter searching is off by default. The simple (and fast)
- * parameter estimation in this encoder is very good, almost always
- * yielding compression within 0.1% of the optimal parameters.
- */
-#undef ENABLE_RICE_PARAMETER_SEARCH
-
-
-typedef struct {
- FLAC__int32 *data[FLAC__MAX_CHANNELS];
- unsigned size; /* of each data[] in samples */
- unsigned tail;
-} verify_input_fifo;
-
-typedef struct {
- const FLAC__byte *data;
- unsigned capacity;
- unsigned bytes;
-} verify_output;
-
-typedef enum {
- ENCODER_IN_MAGIC = 0,
- ENCODER_IN_METADATA = 1,
- ENCODER_IN_AUDIO = 2
-} EncoderStateHint;
-
-static struct CompressionLevels {
- FLAC__bool do_mid_side_stereo;
- FLAC__bool loose_mid_side_stereo;
- unsigned max_lpc_order;
- unsigned qlp_coeff_precision;
- FLAC__bool do_qlp_coeff_prec_search;
- FLAC__bool do_escape_coding;
- FLAC__bool do_exhaustive_model_search;
- unsigned min_residual_partition_order;
- unsigned max_residual_partition_order;
- unsigned rice_parameter_search_dist;
-} compression_levels_[] = {
- { false, false, 0, 0, false, false, false, 0, 3, 0 },
- { true , true , 0, 0, false, false, false, 0, 3, 0 },
- { true , false, 0, 0, false, false, false, 0, 3, 0 },
- { false, false, 6, 0, false, false, false, 0, 4, 0 },
- { true , true , 8, 0, false, false, false, 0, 4, 0 },
- { true , false, 8, 0, false, false, false, 0, 5, 0 },
- { true , false, 8, 0, false, false, false, 0, 6, 0 },
- { true , false, 8, 0, false, false, true , 0, 6, 0 },
- { true , false, 12, 0, false, false, true , 0, 6, 0 }
-};
-
-
-/***********************************************************************
- *
- * Private class method prototypes
- *
- ***********************************************************************/
-
-static void set_defaults_(FLAC__StreamEncoder *encoder);
-static void free_(FLAC__StreamEncoder *encoder);
-static FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_blocksize);
-static FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, unsigned samples, FLAC__bool is_last_block);
-static FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, FLAC__bool is_last_block);
-static void update_metadata_(const FLAC__StreamEncoder *encoder);
-#if FLAC__HAS_OGG
-static void update_ogg_metadata_(FLAC__StreamEncoder *encoder);
-#endif
-static FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block, FLAC__bool is_last_block);
-static FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block);
-
-static FLAC__bool process_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned min_partition_order,
- unsigned max_partition_order,
- const FLAC__FrameHeader *frame_header,
- unsigned subframe_bps,
- const FLAC__int32 integer_signal[],
- FLAC__Subframe *subframe[2],
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
- FLAC__int32 *residual[2],
- unsigned *best_subframe,
- unsigned *best_bits
-);
-
-static FLAC__bool add_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned blocksize,
- unsigned subframe_bps,
- const FLAC__Subframe *subframe,
- FLAC__BitWriter *frame
-);
-
-static unsigned evaluate_constant_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal,
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-);
-
-static unsigned evaluate_fixed_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-);
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-static unsigned evaluate_lpc_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- const FLAC__real lp_coeff[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned qlp_coeff_precision,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-);
-#endif
-
-static unsigned evaluate_verbatim_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-);
-
-static unsigned find_best_partition_order_(
- struct FLAC__StreamEncoderPrivate *private_,
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__EntropyCodingMethod *best_ecm
-);
-
-static void precompute_partition_info_sums_(
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps
-);
-
-static void precompute_partition_info_escapes_(
- const FLAC__int32 residual[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order
-);
-
-static FLAC__bool set_partitioned_rice_(
-#ifdef EXACT_RICE_BITS_CALCULATION
- const FLAC__int32 residual[],
-#endif
- const FLAC__uint64 abs_residual_partition_sums[],
- const unsigned raw_bits_per_partition[],
- const unsigned residual_samples,
- const unsigned predictor_order,
- const unsigned suggested_rice_parameter,
- const unsigned rice_parameter_limit,
- const unsigned rice_parameter_search_dist,
- const unsigned partition_order,
- const FLAC__bool search_for_escapes,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
- unsigned *bits
-);
-
-static unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
-
-/* verify-related routines: */
-static void append_to_verify_fifo_(
- verify_input_fifo *fifo,
- const FLAC__int32 * const input[],
- unsigned input_offset,
- unsigned channels,
- unsigned wide_samples
-);
-
-static void append_to_verify_fifo_interleaved_(
- verify_input_fifo *fifo,
- const FLAC__int32 input[],
- unsigned input_offset,
- unsigned channels,
- unsigned wide_samples
-);
-
-static FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-static FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-static void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-static void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-static FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-static FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-static FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-static FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
-static FILE *get_binary_stdout_(void);
-
-
-/***********************************************************************
- *
- * Private class data
- *
- ***********************************************************************/
-
-typedef struct FLAC__StreamEncoderPrivate {
- unsigned input_capacity; /* current size (in samples) of the signal and residual buffers */
- FLAC__int32 *integer_signal[FLAC__MAX_CHANNELS]; /* the integer version of the input signal */
- FLAC__int32 *integer_signal_mid_side[2]; /* the integer version of the mid-side input signal (stereo only) */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__real *real_signal[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) the floating-point version of the input signal */
- FLAC__real *real_signal_mid_side[2]; /* (@@@ currently unused) the floating-point version of the mid-side input signal (stereo only) */
- FLAC__real *window[FLAC__MAX_APODIZATION_FUNCTIONS]; /* the pre-computed floating-point window for each apodization function */
- FLAC__real *windowed_signal; /* the integer_signal[] * current window[] */
-#endif
- unsigned subframe_bps[FLAC__MAX_CHANNELS]; /* the effective bits per sample of the input signal (stream bps - wasted bits) */
- unsigned subframe_bps_mid_side[2]; /* the effective bits per sample of the mid-side input signal (stream bps - wasted bits + 0/1) */
- FLAC__int32 *residual_workspace[FLAC__MAX_CHANNELS][2]; /* each channel has a candidate and best workspace where the subframe residual signals will be stored */
- FLAC__int32 *residual_workspace_mid_side[2][2];
- FLAC__Subframe subframe_workspace[FLAC__MAX_CHANNELS][2];
- FLAC__Subframe subframe_workspace_mid_side[2][2];
- FLAC__Subframe *subframe_workspace_ptr[FLAC__MAX_CHANNELS][2];
- FLAC__Subframe *subframe_workspace_ptr_mid_side[2][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace[FLAC__MAX_CHANNELS][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace_mid_side[FLAC__MAX_CHANNELS][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr[FLAC__MAX_CHANNELS][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr_mid_side[FLAC__MAX_CHANNELS][2];
- unsigned best_subframe[FLAC__MAX_CHANNELS]; /* index (0 or 1) into 2nd dimension of the above workspaces */
- unsigned best_subframe_mid_side[2];
- unsigned best_subframe_bits[FLAC__MAX_CHANNELS]; /* size in bits of the best subframe for each channel */
- unsigned best_subframe_bits_mid_side[2];
- FLAC__uint64 *abs_residual_partition_sums; /* workspace where the sum of abs(candidate residual) for each partition is stored */
- unsigned *raw_bits_per_partition; /* workspace where the sum of silog2(candidate residual) for each partition is stored */
- FLAC__BitWriter *frame; /* the current frame being worked on */
- unsigned loose_mid_side_stereo_frames; /* rounded number of frames the encoder will use before trying both independent and mid/side frames again */
- unsigned loose_mid_side_stereo_frame_count; /* number of frames using the current channel assignment */
- FLAC__ChannelAssignment last_channel_assignment;
- FLAC__StreamMetadata streaminfo; /* scratchpad for STREAMINFO as it is built */
- FLAC__StreamMetadata_SeekTable *seek_table; /* pointer into encoder->protected_->metadata_ where the seek table is */
- unsigned current_sample_number;
- unsigned current_frame_number;
- FLAC__MD5Context md5context;
- FLAC__CPUInfo cpuinfo;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- unsigned (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#else
- unsigned (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#endif
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- void (*local_lpc_compute_autocorrelation)(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
- void (*local_lpc_compute_residual_from_qlp_coefficients)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
- void (*local_lpc_compute_residual_from_qlp_coefficients_64bit)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
- void (*local_lpc_compute_residual_from_qlp_coefficients_16bit)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-#endif
- FLAC__bool use_wide_by_block; /* use slow 64-bit versions of some functions because of the block size */
- FLAC__bool use_wide_by_partition; /* use slow 64-bit versions of some functions because of the min partition order and blocksize */
- FLAC__bool use_wide_by_order; /* use slow 64-bit versions of some functions because of the lpc order */
- FLAC__bool disable_constant_subframes;
- FLAC__bool disable_fixed_subframes;
- FLAC__bool disable_verbatim_subframes;
-#if FLAC__HAS_OGG
- FLAC__bool is_ogg;
-#endif
- FLAC__StreamEncoderReadCallback read_callback; /* currently only needed for Ogg FLAC */
- FLAC__StreamEncoderSeekCallback seek_callback;
- FLAC__StreamEncoderTellCallback tell_callback;
- FLAC__StreamEncoderWriteCallback write_callback;
- FLAC__StreamEncoderMetadataCallback metadata_callback;
- FLAC__StreamEncoderProgressCallback progress_callback;
- void *client_data;
- unsigned first_seekpoint_to_check;
- FILE *file; /* only used when encoding to a file */
- FLAC__uint64 bytes_written;
- FLAC__uint64 samples_written;
- unsigned frames_written;
- unsigned total_frames_estimate;
- /* unaligned (original) pointers to allocated data */
- FLAC__int32 *integer_signal_unaligned[FLAC__MAX_CHANNELS];
- FLAC__int32 *integer_signal_mid_side_unaligned[2];
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__real *real_signal_unaligned[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) */
- FLAC__real *real_signal_mid_side_unaligned[2]; /* (@@@ currently unused) */
- FLAC__real *window_unaligned[FLAC__MAX_APODIZATION_FUNCTIONS];
- FLAC__real *windowed_signal_unaligned;
-#endif
- FLAC__int32 *residual_workspace_unaligned[FLAC__MAX_CHANNELS][2];
- FLAC__int32 *residual_workspace_mid_side_unaligned[2][2];
- FLAC__uint64 *abs_residual_partition_sums_unaligned;
- unsigned *raw_bits_per_partition_unaligned;
- /*
- * These fields have been moved here from private function local
- * declarations merely to save stack space during encoding.
- */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from process_subframe_() */
-#endif
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_extra[2]; /* from find_best_partition_order_() */
- /*
- * The data for the verify section
- */
- struct {
- FLAC__StreamDecoder *decoder;
- EncoderStateHint state_hint;
- FLAC__bool needs_magic_hack;
- verify_input_fifo input_fifo;
- verify_output output;
- struct {
- FLAC__uint64 absolute_sample;
- unsigned frame_number;
- unsigned channel;
- unsigned sample;
- FLAC__int32 expected;
- FLAC__int32 got;
- } error_stats;
- } verify;
- FLAC__bool is_being_deleted; /* if true, call to ..._finish() from ..._delete() will not call the callbacks */
-} FLAC__StreamEncoderPrivate;
-
-/***********************************************************************
- *
- * Public static class data
- *
- ***********************************************************************/
-
-FLAC_API const char * const FLAC__StreamEncoderStateString[] = {
- "FLAC__STREAM_ENCODER_OK",
- "FLAC__STREAM_ENCODER_UNINITIALIZED",
- "FLAC__STREAM_ENCODER_OGG_ERROR",
- "FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR",
- "FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA",
- "FLAC__STREAM_ENCODER_CLIENT_ERROR",
- "FLAC__STREAM_ENCODER_IO_ERROR",
- "FLAC__STREAM_ENCODER_FRAMING_ERROR",
- "FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderInitStatusString[] = {
- "FLAC__STREAM_ENCODER_INIT_STATUS_OK",
- "FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR",
- "FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION",
- "FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER",
- "FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA",
- "FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED"
-};
-
-FLAC_API const char * const FLAC__treamEncoderReadStatusString[] = {
- "FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE",
- "FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM",
- "FLAC__STREAM_ENCODER_READ_STATUS_ABORT",
- "FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[] = {
- "FLAC__STREAM_ENCODER_WRITE_STATUS_OK",
- "FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[] = {
- "FLAC__STREAM_ENCODER_SEEK_STATUS_OK",
- "FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR",
- "FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderTellStatusString[] = {
- "FLAC__STREAM_ENCODER_TELL_STATUS_OK",
- "FLAC__STREAM_ENCODER_TELL_STATUS_ERROR",
- "FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED"
-};
-
-/* Number of samples that will be overread to watch for end of stream. By
- * 'overread', we mean that the FLAC__stream_encoder_process*() calls will
- * always try to read blocksize+1 samples before encoding a block, so that
- * even if the stream has a total sample count that is an integral multiple
- * of the blocksize, we will still notice when we are encoding the last
- * block. This is needed, for example, to correctly set the end-of-stream
- * marker in Ogg FLAC.
- *
- * WATCHOUT: some parts of the code assert that OVERREAD_ == 1 and there's
- * not really any reason to change it.
- */
-static const unsigned OVERREAD_ = 1;
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- */
-FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void)
-{
- FLAC__StreamEncoder *encoder;
- unsigned i;
-
- FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
-
- encoder = (FLAC__StreamEncoder*)calloc(1, sizeof(FLAC__StreamEncoder));
- if(encoder == 0) {
- return 0;
- }
-
- encoder->protected_ = (FLAC__StreamEncoderProtected*)calloc(1, sizeof(FLAC__StreamEncoderProtected));
- if(encoder->protected_ == 0) {
- free(encoder);
- return 0;
- }
-
- encoder->private_ = (FLAC__StreamEncoderPrivate*)calloc(1, sizeof(FLAC__StreamEncoderPrivate));
- if(encoder->private_ == 0) {
- free(encoder->protected_);
- free(encoder);
- return 0;
- }
-
- encoder->private_->frame = FLAC__bitwriter_new();
- if(encoder->private_->frame == 0) {
- free(encoder->private_);
- free(encoder->protected_);
- free(encoder);
- return 0;
- }
-
- encoder->private_->file = 0;
-
- set_defaults_(encoder);
-
- encoder->private_->is_being_deleted = false;
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- encoder->private_->subframe_workspace_ptr[i][0] = &encoder->private_->subframe_workspace[i][0];
- encoder->private_->subframe_workspace_ptr[i][1] = &encoder->private_->subframe_workspace[i][1];
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->subframe_workspace_ptr_mid_side[i][0] = &encoder->private_->subframe_workspace_mid_side[i][0];
- encoder->private_->subframe_workspace_ptr_mid_side[i][1] = &encoder->private_->subframe_workspace_mid_side[i][1];
- }
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- encoder->private_->partitioned_rice_contents_workspace_ptr[i][0] = &encoder->private_->partitioned_rice_contents_workspace[i][0];
- encoder->private_->partitioned_rice_contents_workspace_ptr[i][1] = &encoder->private_->partitioned_rice_contents_workspace[i][1];
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][0] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0];
- encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][1] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1];
- }
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
- }
- for(i = 0; i < 2; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
- }
- for(i = 0; i < 2; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_extra[i]);
-
- encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
-
- return encoder;
-}
-
-FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
-{
- unsigned i;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->private_->frame);
-
- encoder->private_->is_being_deleted = true;
-
- (void)FLAC__stream_encoder_finish(encoder);
-
- if(0 != encoder->private_->verify.decoder)
- FLAC__stream_decoder_delete(encoder->private_->verify.decoder);
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
- }
- for(i = 0; i < 2; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
- }
- for(i = 0; i < 2; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_extra[i]);
-
- FLAC__bitwriter_delete(encoder->private_->frame);
- free(encoder->private_);
- free(encoder->protected_);
- free(encoder);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-static FLAC__StreamEncoderInitStatus init_stream_internal_(
- FLAC__StreamEncoder *encoder,
- FLAC__StreamEncoderReadCallback read_callback,
- FLAC__StreamEncoderWriteCallback write_callback,
- FLAC__StreamEncoderSeekCallback seek_callback,
- FLAC__StreamEncoderTellCallback tell_callback,
- FLAC__StreamEncoderMetadataCallback metadata_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- unsigned i;
- FLAC__bool metadata_has_seektable, metadata_has_vorbis_comment, metadata_picture_has_type1, metadata_picture_has_type2;
-
- FLAC__ASSERT(0 != encoder);
-
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
-
-#if !FLAC__HAS_OGG
- if(is_ogg)
- return FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
-#endif
-
- if(0 == write_callback || (seek_callback && 0 == tell_callback))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS;
-
- if(encoder->protected_->channels == 0 || encoder->protected_->channels > FLAC__MAX_CHANNELS)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS;
-
- if(encoder->protected_->channels != 2) {
- encoder->protected_->do_mid_side_stereo = false;
- encoder->protected_->loose_mid_side_stereo = false;
- }
- else if(!encoder->protected_->do_mid_side_stereo)
- encoder->protected_->loose_mid_side_stereo = false;
-
- if(encoder->protected_->bits_per_sample >= 32)
- encoder->protected_->do_mid_side_stereo = false; /* since we currenty do 32-bit math, the side channel would have 33 bps and overflow */
-
- if(encoder->protected_->bits_per_sample < FLAC__MIN_BITS_PER_SAMPLE || encoder->protected_->bits_per_sample > FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE;
-
- if(!FLAC__format_sample_rate_is_valid(encoder->protected_->sample_rate))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE;
-
- if(encoder->protected_->blocksize == 0) {
- if(encoder->protected_->max_lpc_order == 0)
- encoder->protected_->blocksize = 1152;
- else
- encoder->protected_->blocksize = 4096;
- }
-
- if(encoder->protected_->blocksize < FLAC__MIN_BLOCK_SIZE || encoder->protected_->blocksize > FLAC__MAX_BLOCK_SIZE)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE;
-
- if(encoder->protected_->max_lpc_order > FLAC__MAX_LPC_ORDER)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER;
-
- if(encoder->protected_->blocksize < encoder->protected_->max_lpc_order)
- return FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER;
-
- if(encoder->protected_->qlp_coeff_precision == 0) {
- if(encoder->protected_->bits_per_sample < 16) {
- /* @@@ need some data about how to set this here w.r.t. blocksize and sample rate */
- /* @@@ until then we'll make a guess */
- encoder->protected_->qlp_coeff_precision = max(FLAC__MIN_QLP_COEFF_PRECISION, 2 + encoder->protected_->bits_per_sample / 2);
- }
- else if(encoder->protected_->bits_per_sample == 16) {
- if(encoder->protected_->blocksize <= 192)
- encoder->protected_->qlp_coeff_precision = 7;
- else if(encoder->protected_->blocksize <= 384)
- encoder->protected_->qlp_coeff_precision = 8;
- else if(encoder->protected_->blocksize <= 576)
- encoder->protected_->qlp_coeff_precision = 9;
- else if(encoder->protected_->blocksize <= 1152)
- encoder->protected_->qlp_coeff_precision = 10;
- else if(encoder->protected_->blocksize <= 2304)
- encoder->protected_->qlp_coeff_precision = 11;
- else if(encoder->protected_->blocksize <= 4608)
- encoder->protected_->qlp_coeff_precision = 12;
- else
- encoder->protected_->qlp_coeff_precision = 13;
- }
- else {
- if(encoder->protected_->blocksize <= 384)
- encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-2;
- else if(encoder->protected_->blocksize <= 1152)
- encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-1;
- else
- encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
- }
- FLAC__ASSERT(encoder->protected_->qlp_coeff_precision <= FLAC__MAX_QLP_COEFF_PRECISION);
- }
- else if(encoder->protected_->qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION || encoder->protected_->qlp_coeff_precision > FLAC__MAX_QLP_COEFF_PRECISION)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION;
-
- if(encoder->protected_->streamable_subset) {
- if(
- encoder->protected_->blocksize != 192 &&
- encoder->protected_->blocksize != 576 &&
- encoder->protected_->blocksize != 1152 &&
- encoder->protected_->blocksize != 2304 &&
- encoder->protected_->blocksize != 4608 &&
- encoder->protected_->blocksize != 256 &&
- encoder->protected_->blocksize != 512 &&
- encoder->protected_->blocksize != 1024 &&
- encoder->protected_->blocksize != 2048 &&
- encoder->protected_->blocksize != 4096 &&
- encoder->protected_->blocksize != 8192 &&
- encoder->protected_->blocksize != 16384
- )
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(!FLAC__format_sample_rate_is_subset(encoder->protected_->sample_rate))
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(
- encoder->protected_->bits_per_sample != 8 &&
- encoder->protected_->bits_per_sample != 12 &&
- encoder->protected_->bits_per_sample != 16 &&
- encoder->protected_->bits_per_sample != 20 &&
- encoder->protected_->bits_per_sample != 24
- )
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(encoder->protected_->max_residual_partition_order > FLAC__SUBSET_MAX_RICE_PARTITION_ORDER)
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(
- encoder->protected_->sample_rate <= 48000 &&
- (
- encoder->protected_->blocksize > FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ ||
- encoder->protected_->max_lpc_order > FLAC__SUBSET_MAX_LPC_ORDER_48000HZ
- )
- ) {
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- }
- }
-
- if(encoder->protected_->max_residual_partition_order >= (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- encoder->protected_->max_residual_partition_order = (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN) - 1;
- if(encoder->protected_->min_residual_partition_order >= encoder->protected_->max_residual_partition_order)
- encoder->protected_->min_residual_partition_order = encoder->protected_->max_residual_partition_order;
-
-#if FLAC__HAS_OGG
- /* reorder metadata if necessary to ensure that any VORBIS_COMMENT is the first, according to the mapping spec */
- if(is_ogg && 0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 1) {
- unsigned i;
- for(i = 1; i < encoder->protected_->num_metadata_blocks; i++) {
- if(0 != encoder->protected_->metadata[i] && encoder->protected_->metadata[i]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
- FLAC__StreamMetadata *vc = encoder->protected_->metadata[i];
- for( ; i > 0; i--)
- encoder->protected_->metadata[i] = encoder->protected_->metadata[i-1];
- encoder->protected_->metadata[0] = vc;
- break;
- }
- }
- }
-#endif
- /* keep track of any SEEKTABLE block */
- if(0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0) {
- unsigned i;
- for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
- if(0 != encoder->protected_->metadata[i] && encoder->protected_->metadata[i]->type == FLAC__METADATA_TYPE_SEEKTABLE) {
- encoder->private_->seek_table = &encoder->protected_->metadata[i]->data.seek_table;
- break; /* take only the first one */
- }
- }
- }
-
- /* validate metadata */
- if(0 == encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_has_seektable = false;
- metadata_has_vorbis_comment = false;
- metadata_picture_has_type1 = false;
- metadata_picture_has_type2 = false;
- for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
- const FLAC__StreamMetadata *m = encoder->protected_->metadata[i];
- if(m->type == FLAC__METADATA_TYPE_STREAMINFO)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- else if(m->type == FLAC__METADATA_TYPE_SEEKTABLE) {
- if(metadata_has_seektable) /* only one is allowed */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_has_seektable = true;
- if(!FLAC__format_seektable_is_legal(&m->data.seek_table))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- }
- else if(m->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
- if(metadata_has_vorbis_comment) /* only one is allowed */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_has_vorbis_comment = true;
- }
- else if(m->type == FLAC__METADATA_TYPE_CUESHEET) {
- if(!FLAC__format_cuesheet_is_legal(&m->data.cue_sheet, m->data.cue_sheet.is_cd, /*violation=*/0))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- }
- else if(m->type == FLAC__METADATA_TYPE_PICTURE) {
- if(!FLAC__format_picture_is_legal(&m->data.picture, /*violation=*/0))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD) {
- if(metadata_picture_has_type1) /* there should only be 1 per stream */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_picture_has_type1 = true;
- /* standard icon must be 32x32 pixel PNG */
- if(
- m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD &&
- (
- (strcmp(m->data.picture.mime_type, "image/png") && strcmp(m->data.picture.mime_type, "-->")) ||
- m->data.picture.width != 32 ||
- m->data.picture.height != 32
- )
- )
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- }
- else if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON) {
- if(metadata_picture_has_type2) /* there should only be 1 per stream */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_picture_has_type2 = true;
- }
- }
- }
-
- encoder->private_->input_capacity = 0;
- for(i = 0; i < encoder->protected_->channels; i++) {
- encoder->private_->integer_signal_unaligned[i] = encoder->private_->integer_signal[i] = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->real_signal_unaligned[i] = encoder->private_->real_signal[i] = 0;
-#endif
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->integer_signal_mid_side_unaligned[i] = encoder->private_->integer_signal_mid_side[i] = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->real_signal_mid_side_unaligned[i] = encoder->private_->real_signal_mid_side[i] = 0;
-#endif
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- for(i = 0; i < encoder->protected_->num_apodizations; i++)
- encoder->private_->window_unaligned[i] = encoder->private_->window[i] = 0;
- encoder->private_->windowed_signal_unaligned = encoder->private_->windowed_signal = 0;
-#endif
- for(i = 0; i < encoder->protected_->channels; i++) {
- encoder->private_->residual_workspace_unaligned[i][0] = encoder->private_->residual_workspace[i][0] = 0;
- encoder->private_->residual_workspace_unaligned[i][1] = encoder->private_->residual_workspace[i][1] = 0;
- encoder->private_->best_subframe[i] = 0;
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->residual_workspace_mid_side_unaligned[i][0] = encoder->private_->residual_workspace_mid_side[i][0] = 0;
- encoder->private_->residual_workspace_mid_side_unaligned[i][1] = encoder->private_->residual_workspace_mid_side[i][1] = 0;
- encoder->private_->best_subframe_mid_side[i] = 0;
- }
- encoder->private_->abs_residual_partition_sums_unaligned = encoder->private_->abs_residual_partition_sums = 0;
- encoder->private_->raw_bits_per_partition_unaligned = encoder->private_->raw_bits_per_partition = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->loose_mid_side_stereo_frames = (unsigned)((FLAC__double)encoder->protected_->sample_rate * 0.4 / (FLAC__double)encoder->protected_->blocksize + 0.5);
-#else
- /* 26214 is the approximate fixed-point equivalent to 0.4 (0.4 * 2^16) */
- /* sample rate can be up to 655350 Hz, and thus use 20 bits, so we do the multiply&divide by hand */
- FLAC__ASSERT(FLAC__MAX_SAMPLE_RATE <= 655350);
- FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535);
- FLAC__ASSERT(encoder->protected_->sample_rate <= 655350);
- FLAC__ASSERT(encoder->protected_->blocksize <= 65535);
- encoder->private_->loose_mid_side_stereo_frames = (unsigned)FLAC__fixedpoint_trunc((((FLAC__uint64)(encoder->protected_->sample_rate) * (FLAC__uint64)(26214)) << 16) / (encoder->protected_->blocksize<<16) + FLAC__FP_ONE_HALF);
-#endif
- if(encoder->private_->loose_mid_side_stereo_frames == 0)
- encoder->private_->loose_mid_side_stereo_frames = 1;
- encoder->private_->loose_mid_side_stereo_frame_count = 0;
- encoder->private_->current_sample_number = 0;
- encoder->private_->current_frame_number = 0;
-
- encoder->private_->use_wide_by_block = (encoder->protected_->bits_per_sample + FLAC__bitmath_ilog2(encoder->protected_->blocksize)+1 > 30);
- encoder->private_->use_wide_by_order = (encoder->protected_->bits_per_sample + FLAC__bitmath_ilog2(max(encoder->protected_->max_lpc_order, FLAC__MAX_FIXED_ORDER))+1 > 30); /*@@@ need to use this? */
- encoder->private_->use_wide_by_partition = (false); /*@@@ need to set this */
-
- /*
- * get the CPU info and set the function pointers
- */
- FLAC__cpu_info(&encoder->private_->cpuinfo);
- /* first default to the non-asm routines */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
-#endif
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients;
-#endif
- /* now override with asm where appropriate */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-# ifndef FLAC__NO_ASM
- if(encoder->private_->cpuinfo.use_asm) {
-# ifdef FLAC__CPU_IA32
- FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
-# ifdef FLAC__HAS_NASM
- if(encoder->private_->cpuinfo.data.ia32.sse) {
- if(encoder->protected_->max_lpc_order < 4)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4;
- else if(encoder->protected_->max_lpc_order < 8)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8;
- else if(encoder->protected_->max_lpc_order < 12)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12;
- else
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32;
- }
- else if(encoder->private_->cpuinfo.data.ia32._3dnow)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_3dnow;
- else
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32;
- if(encoder->private_->cpuinfo.data.ia32.mmx) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx;
- }
- else {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
- }
- if(encoder->private_->cpuinfo.data.ia32.mmx && encoder->private_->cpuinfo.data.ia32.cmov)
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov;
-# endif /* FLAC__HAS_NASM */
-# endif /* FLAC__CPU_IA32 */
- }
-# endif /* !FLAC__NO_ASM */
-#endif /* !FLAC__INTEGER_ONLY_LIBRARY */
- /* finally override based on wide-ness if necessary */
- if(encoder->private_->use_wide_by_block) {
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_wide;
- }
-
- /* set state to OK; from here on, errors are fatal and we'll override the state then */
- encoder->protected_->state = FLAC__STREAM_ENCODER_OK;
-
-#if FLAC__HAS_OGG
- encoder->private_->is_ogg = is_ogg;
- if(is_ogg && !FLAC__ogg_encoder_aspect_init(&encoder->protected_->ogg_encoder_aspect)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-#endif
-
- encoder->private_->read_callback = read_callback;
- encoder->private_->write_callback = write_callback;
- encoder->private_->seek_callback = seek_callback;
- encoder->private_->tell_callback = tell_callback;
- encoder->private_->metadata_callback = metadata_callback;
- encoder->private_->client_data = client_data;
-
- if(!resize_buffers_(encoder, encoder->protected_->blocksize)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- if(!FLAC__bitwriter_init(encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * Set up the verify stuff if necessary
- */
- if(encoder->protected_->verify) {
- /*
- * First, set up the fifo which will hold the
- * original signal to compare against
- */
- encoder->private_->verify.input_fifo.size = encoder->protected_->blocksize+OVERREAD_;
- for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 == (encoder->private_->verify.input_fifo.data[i] = (FLAC__int32*)safe_malloc_mul_2op_(sizeof(FLAC__int32), /*times*/encoder->private_->verify.input_fifo.size))) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
- encoder->private_->verify.input_fifo.tail = 0;
-
- /*
- * Now set up a stream decoder for verification
- */
- encoder->private_->verify.decoder = FLAC__stream_decoder_new();
- if(0 == encoder->private_->verify.decoder) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- if(FLAC__stream_decoder_init_stream(encoder->private_->verify.decoder, verify_read_callback_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, verify_write_callback_, verify_metadata_callback_, verify_error_callback_, /*client_data=*/encoder) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
- encoder->private_->verify.error_stats.absolute_sample = 0;
- encoder->private_->verify.error_stats.frame_number = 0;
- encoder->private_->verify.error_stats.channel = 0;
- encoder->private_->verify.error_stats.sample = 0;
- encoder->private_->verify.error_stats.expected = 0;
- encoder->private_->verify.error_stats.got = 0;
-
- /*
- * These must be done before we write any metadata, because that
- * calls the write_callback, which uses these values.
- */
- encoder->private_->first_seekpoint_to_check = 0;
- encoder->private_->samples_written = 0;
- encoder->protected_->streaminfo_offset = 0;
- encoder->protected_->seektable_offset = 0;
- encoder->protected_->audio_offset = 0;
-
- /*
- * write the stream header
- */
- if(encoder->protected_->verify)
- encoder->private_->verify.state_hint = ENCODER_IN_MAGIC;
- if(!FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, FLAC__STREAM_SYNC, FLAC__STREAM_SYNC_LEN)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * write the STREAMINFO metadata block
- */
- if(encoder->protected_->verify)
- encoder->private_->verify.state_hint = ENCODER_IN_METADATA;
- encoder->private_->streaminfo.type = FLAC__METADATA_TYPE_STREAMINFO;
- encoder->private_->streaminfo.is_last = false; /* we will have at a minimum a VORBIS_COMMENT afterwards */
- encoder->private_->streaminfo.length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
- encoder->private_->streaminfo.data.stream_info.min_blocksize = encoder->protected_->blocksize; /* this encoder uses the same blocksize for the whole stream */
- encoder->private_->streaminfo.data.stream_info.max_blocksize = encoder->protected_->blocksize;
- encoder->private_->streaminfo.data.stream_info.min_framesize = 0; /* we don't know this yet; have to fill it in later */
- encoder->private_->streaminfo.data.stream_info.max_framesize = 0; /* we don't know this yet; have to fill it in later */
- encoder->private_->streaminfo.data.stream_info.sample_rate = encoder->protected_->sample_rate;
- encoder->private_->streaminfo.data.stream_info.channels = encoder->protected_->channels;
- encoder->private_->streaminfo.data.stream_info.bits_per_sample = encoder->protected_->bits_per_sample;
- encoder->private_->streaminfo.data.stream_info.total_samples = encoder->protected_->total_samples_estimate; /* we will replace this later with the real total */
- memset(encoder->private_->streaminfo.data.stream_info.md5sum, 0, 16); /* we don't know this yet; have to fill it in later */
- if(encoder->protected_->do_md5)
- FLAC__MD5Init(&encoder->private_->md5context);
- if(!FLAC__add_metadata_block(&encoder->private_->streaminfo, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * Now that the STREAMINFO block is written, we can init this to an
- * absurdly-high value...
- */
- encoder->private_->streaminfo.data.stream_info.min_framesize = (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN) - 1;
- /* ... and clear this to 0 */
- encoder->private_->streaminfo.data.stream_info.total_samples = 0;
-
- /*
- * Check to see if the supplied metadata contains a VORBIS_COMMENT;
- * if not, we will write an empty one (FLAC__add_metadata_block()
- * automatically supplies the vendor string).
- *
- * WATCHOUT: the Ogg FLAC mapping requires us to write this block after
- * the STREAMINFO. (In the case that metadata_has_vorbis_comment is
- * true it will have already insured that the metadata list is properly
- * ordered.)
- */
- if(!metadata_has_vorbis_comment) {
- FLAC__StreamMetadata vorbis_comment;
- vorbis_comment.type = FLAC__METADATA_TYPE_VORBIS_COMMENT;
- vorbis_comment.is_last = (encoder->protected_->num_metadata_blocks == 0);
- vorbis_comment.length = 4 + 4; /* MAGIC NUMBER */
- vorbis_comment.data.vorbis_comment.vendor_string.length = 0;
- vorbis_comment.data.vorbis_comment.vendor_string.entry = 0;
- vorbis_comment.data.vorbis_comment.num_comments = 0;
- vorbis_comment.data.vorbis_comment.comments = 0;
- if(!FLAC__add_metadata_block(&vorbis_comment, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
-
- /*
- * write the user's metadata blocks
- */
- for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
- encoder->protected_->metadata[i]->is_last = (i == encoder->protected_->num_metadata_blocks - 1);
- if(!FLAC__add_metadata_block(encoder->protected_->metadata[i], encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
-
- /* now that all the metadata is written, we save the stream offset */
- if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &encoder->protected_->audio_offset, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) { /* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- if(encoder->protected_->verify)
- encoder->private_->verify.state_hint = ENCODER_IN_AUDIO;
-
- return FLAC__STREAM_ENCODER_INIT_STATUS_OK;
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(
- FLAC__StreamEncoder *encoder,
- FLAC__StreamEncoderWriteCallback write_callback,
- FLAC__StreamEncoderSeekCallback seek_callback,
- FLAC__StreamEncoderTellCallback tell_callback,
- FLAC__StreamEncoderMetadataCallback metadata_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- encoder,
- /*read_callback=*/0,
- write_callback,
- seek_callback,
- tell_callback,
- metadata_callback,
- client_data,
- /*is_ogg=*/false
- );
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(
- FLAC__StreamEncoder *encoder,
- FLAC__StreamEncoderReadCallback read_callback,
- FLAC__StreamEncoderWriteCallback write_callback,
- FLAC__StreamEncoderSeekCallback seek_callback,
- FLAC__StreamEncoderTellCallback tell_callback,
- FLAC__StreamEncoderMetadataCallback metadata_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- encoder,
- read_callback,
- write_callback,
- seek_callback,
- tell_callback,
- metadata_callback,
- client_data,
- /*is_ogg=*/true
- );
-}
-
-static FLAC__StreamEncoderInitStatus init_FILE_internal_(
- FLAC__StreamEncoder *encoder,
- FILE *file,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FLAC__StreamEncoderInitStatus init_status;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != file);
-
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- /* double protection */
- if(file == 0) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * must assign the FILE pointer before any further error can occur in
- * this routine.
- */
- if(file == stdout)
- file = get_binary_stdout_(); /* just to be safe */
-
- encoder->private_->file = file;
-
- encoder->private_->progress_callback = progress_callback;
- encoder->private_->bytes_written = 0;
- encoder->private_->samples_written = 0;
- encoder->private_->frames_written = 0;
-
- init_status = init_stream_internal_(
- encoder,
- encoder->private_->file == stdout? 0 : is_ogg? file_read_callback_ : 0,
- file_write_callback_,
- encoder->private_->file == stdout? 0 : file_seek_callback_,
- encoder->private_->file == stdout? 0 : file_tell_callback_,
- /*metadata_callback=*/0,
- client_data,
- is_ogg
- );
- if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
- /* the above function sets the state for us in case of an error */
- return init_status;
- }
-
- {
- unsigned blocksize = FLAC__stream_encoder_get_blocksize(encoder);
-
- FLAC__ASSERT(blocksize != 0);
- encoder->private_->total_frames_estimate = (unsigned)((FLAC__stream_encoder_get_total_samples_estimate(encoder) + blocksize - 1) / blocksize);
- }
-
- return init_status;
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(
- FLAC__StreamEncoder *encoder,
- FILE *file,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(
- FLAC__StreamEncoder *encoder,
- FILE *file,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/true);
-}
-
-static FLAC__StreamEncoderInitStatus init_file_internal_(
- FLAC__StreamEncoder *encoder,
- const char *filename,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FILE *file;
-
- FLAC__ASSERT(0 != encoder);
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * have to do the same entrance checks here that are later performed
- * in FLAC__stream_encoder_init_FILE() before the FILE* is assigned.
- */
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- file = filename? fopen(filename, "w+b") : stdout;
-
- if(file == 0) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- return init_FILE_internal_(encoder, file, progress_callback, client_data, is_ogg);
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(
- FLAC__StreamEncoder *encoder,
- const char *filename,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(
- FLAC__StreamEncoder *encoder,
- const char *filename,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/true);
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder)
-{
- FLAC__bool error = false;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
-
- if(encoder->protected_->state == FLAC__STREAM_ENCODER_UNINITIALIZED)
- return true;
-
- if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK && !encoder->private_->is_being_deleted) {
- if(encoder->private_->current_sample_number != 0) {
- const FLAC__bool is_fractional_block = encoder->protected_->blocksize != encoder->private_->current_sample_number;
- encoder->protected_->blocksize = encoder->private_->current_sample_number;
- if(!process_frame_(encoder, is_fractional_block, /*is_last_block=*/true))
- error = true;
- }
- }
-
- if(encoder->protected_->do_md5)
- FLAC__MD5Final(encoder->private_->streaminfo.data.stream_info.md5sum, &encoder->private_->md5context);
-
- if(!encoder->private_->is_being_deleted) {
- if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK) {
- if(encoder->private_->seek_callback) {
-#if FLAC__HAS_OGG
- if(encoder->private_->is_ogg)
- update_ogg_metadata_(encoder);
- else
-#endif
- update_metadata_(encoder);
-
- /* check if an error occurred while updating metadata */
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_OK)
- error = true;
- }
- if(encoder->private_->metadata_callback)
- encoder->private_->metadata_callback(encoder, &encoder->private_->streaminfo, encoder->private_->client_data);
- }
-
- if(encoder->protected_->verify && 0 != encoder->private_->verify.decoder && !FLAC__stream_decoder_finish(encoder->private_->verify.decoder)) {
- if(!error)
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
- error = true;
- }
- }
-
- if(0 != encoder->private_->file) {
- if(encoder->private_->file != stdout)
- fclose(encoder->private_->file);
- encoder->private_->file = 0;
- }
-
-#if FLAC__HAS_OGG
- if(encoder->private_->is_ogg)
- FLAC__ogg_encoder_aspect_finish(&encoder->protected_->ogg_encoder_aspect);
-#endif
-
- free_(encoder);
- set_defaults_(encoder);
-
- if(!error)
- encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
-
- return !error;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#if FLAC__HAS_OGG
- /* can't check encoder->private_->is_ogg since that's not set until init time */
- FLAC__ogg_encoder_aspect_set_serial_number(&encoder->protected_->ogg_encoder_aspect, value);
- return true;
-#else
- (void)value;
- return false;
-#endif
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#ifndef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
- encoder->protected_->verify = value;
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->streamable_subset = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_md5(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_md5 = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->channels = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->bits_per_sample = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->sample_rate = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__bool ok = true;
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- if(value >= sizeof(compression_levels_)/sizeof(compression_levels_[0]))
- value = sizeof(compression_levels_)/sizeof(compression_levels_[0]) - 1;
- ok &= FLAC__stream_encoder_set_do_mid_side_stereo (encoder, compression_levels_[value].do_mid_side_stereo);
- ok &= FLAC__stream_encoder_set_loose_mid_side_stereo (encoder, compression_levels_[value].loose_mid_side_stereo);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if 0
- /* was: */
- ok &= FLAC__stream_encoder_set_apodization (encoder, compression_levels_[value].apodization);
- /* but it's too hard to specify the string in a locale-specific way */
-#else
- encoder->protected_->num_apodizations = 1;
- encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
- encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
-#endif
-#endif
- ok &= FLAC__stream_encoder_set_max_lpc_order (encoder, compression_levels_[value].max_lpc_order);
- ok &= FLAC__stream_encoder_set_qlp_coeff_precision (encoder, compression_levels_[value].qlp_coeff_precision);
- ok &= FLAC__stream_encoder_set_do_qlp_coeff_prec_search (encoder, compression_levels_[value].do_qlp_coeff_prec_search);
- ok &= FLAC__stream_encoder_set_do_escape_coding (encoder, compression_levels_[value].do_escape_coding);
- ok &= FLAC__stream_encoder_set_do_exhaustive_model_search (encoder, compression_levels_[value].do_exhaustive_model_search);
- ok &= FLAC__stream_encoder_set_min_residual_partition_order(encoder, compression_levels_[value].min_residual_partition_order);
- ok &= FLAC__stream_encoder_set_max_residual_partition_order(encoder, compression_levels_[value].max_residual_partition_order);
- ok &= FLAC__stream_encoder_set_rice_parameter_search_dist (encoder, compression_levels_[value].rice_parameter_search_dist);
- return ok;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->blocksize = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_mid_side_stereo = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->loose_mid_side_stereo = value;
- return true;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(0 != specification);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#ifdef FLAC__INTEGER_ONLY_LIBRARY
- (void)specification; /* silently ignore since we haven't integerized; will always use a rectangular window */
-#else
- encoder->protected_->num_apodizations = 0;
- while(1) {
- const char *s = strchr(specification, ';');
- const size_t n = s? (size_t)(s - specification) : strlen(specification);
- if (n==8 && 0 == strncmp("bartlett" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT;
- else if(n==13 && 0 == strncmp("bartlett_hann", specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT_HANN;
- else if(n==8 && 0 == strncmp("blackman" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN;
- else if(n==26 && 0 == strncmp("blackman_harris_4term_92db", specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE;
- else if(n==6 && 0 == strncmp("connes" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_CONNES;
- else if(n==7 && 0 == strncmp("flattop" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_FLATTOP;
- else if(n>7 && 0 == strncmp("gauss(" , specification, 6)) {
- FLAC__real stddev = (FLAC__real)strtod(specification+6, 0);
- if (stddev > 0.0 && stddev <= 0.5) {
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.gauss.stddev = stddev;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_GAUSS;
- }
- }
- else if(n==7 && 0 == strncmp("hamming" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HAMMING;
- else if(n==4 && 0 == strncmp("hann" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HANN;
- else if(n==13 && 0 == strncmp("kaiser_bessel", specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_KAISER_BESSEL;
- else if(n==7 && 0 == strncmp("nuttall" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_NUTTALL;
- else if(n==9 && 0 == strncmp("rectangle" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_RECTANGLE;
- else if(n==8 && 0 == strncmp("triangle" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TRIANGLE;
- else if(n>7 && 0 == strncmp("tukey(" , specification, 6)) {
- FLAC__real p = (FLAC__real)strtod(specification+6, 0);
- if (p >= 0.0 && p <= 1.0) {
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = p;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
- }
- }
- else if(n==5 && 0 == strncmp("welch" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_WELCH;
- if (encoder->protected_->num_apodizations == 32)
- break;
- if (s)
- specification = s+1;
- else
- break;
- }
- if(encoder->protected_->num_apodizations == 0) {
- encoder->protected_->num_apodizations = 1;
- encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
- encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
- }
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->max_lpc_order = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->qlp_coeff_precision = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_qlp_coeff_prec_search = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#if 0
- /*@@@ deprecated: */
- encoder->protected_->do_escape_coding = value;
-#else
- (void)value;
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_exhaustive_model_search = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->min_residual_partition_order = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->max_residual_partition_order = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#if 0
- /*@@@ deprecated: */
- encoder->protected_->rice_parameter_search_dist = value;
-#else
- (void)value;
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->total_samples_estimate = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- if(0 == metadata)
- num_blocks = 0;
- if(0 == num_blocks)
- metadata = 0;
- /* realloc() does not do exactly what we want so... */
- if(encoder->protected_->metadata) {
- free(encoder->protected_->metadata);
- encoder->protected_->metadata = 0;
- encoder->protected_->num_metadata_blocks = 0;
- }
- if(num_blocks) {
- FLAC__StreamMetadata **m;
- if(0 == (m = (FLAC__StreamMetadata**)safe_malloc_mul_2op_(sizeof(m[0]), /*times*/num_blocks)))
- return false;
- memcpy(m, metadata, sizeof(m[0]) * num_blocks);
- encoder->protected_->metadata = m;
- encoder->protected_->num_metadata_blocks = num_blocks;
- }
-#if FLAC__HAS_OGG
- if(!FLAC__ogg_encoder_aspect_set_num_metadata(&encoder->protected_->ogg_encoder_aspect, num_blocks))
- return false;
-#endif
- return true;
-}
-
-/*
- * These three functions are not static, but not publically exposed in
- * include/FLAC/ either. They are used by the test suite.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->private_->disable_constant_subframes = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->private_->disable_fixed_subframes = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->private_->disable_verbatim_subframes = value;
- return true;
-}
-
-FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->state;
-}
-
-FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->verify)
- return FLAC__stream_decoder_get_state(encoder->private_->verify.decoder);
- else
- return FLAC__STREAM_DECODER_UNINITIALIZED;
-}
-
-FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR)
- return FLAC__StreamEncoderStateString[encoder->protected_->state];
- else
- return FLAC__stream_decoder_get_resolved_state_string(encoder->private_->verify.decoder);
-}
-
-FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(0 != absolute_sample)
- *absolute_sample = encoder->private_->verify.error_stats.absolute_sample;
- if(0 != frame_number)
- *frame_number = encoder->private_->verify.error_stats.frame_number;
- if(0 != channel)
- *channel = encoder->private_->verify.error_stats.channel;
- if(0 != sample)
- *sample = encoder->private_->verify.error_stats.sample;
- if(0 != expected)
- *expected = encoder->private_->verify.error_stats.expected;
- if(0 != got)
- *got = encoder->private_->verify.error_stats.got;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->verify;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->streamable_subset;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_md5(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_md5;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->channels;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->bits_per_sample;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->sample_rate;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->blocksize;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_mid_side_stereo;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->loose_mid_side_stereo;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->max_lpc_order;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->qlp_coeff_precision;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_qlp_coeff_prec_search;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_escape_coding;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_exhaustive_model_search;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->min_residual_partition_order;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->max_residual_partition_order;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->rice_parameter_search_dist;
-}
-
-FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->total_samples_estimate;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
-{
- unsigned i, j = 0, channel;
- const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
-
- do {
- const unsigned n = min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j);
-
- if(encoder->protected_->verify)
- append_to_verify_fifo_(&encoder->private_->verify.input_fifo, buffer, j, channels, n);
-
- for(channel = 0; channel < channels; channel++)
- memcpy(&encoder->private_->integer_signal[channel][encoder->private_->current_sample_number], &buffer[channel][j], sizeof(buffer[channel][0]) * n);
-
- if(encoder->protected_->do_mid_side_stereo) {
- FLAC__ASSERT(channels == 2);
- /* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
- for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
- encoder->private_->integer_signal_mid_side[1][i] = buffer[0][j] - buffer[1][j];
- encoder->private_->integer_signal_mid_side[0][i] = (buffer[0][j] + buffer[1][j]) >> 1; /* NOTE: not the same as 'mid = (buffer[0][j] + buffer[1][j]) / 2' ! */
- }
- }
- else
- j += n;
-
- encoder->private_->current_sample_number += n;
-
- /* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
- if(encoder->private_->current_sample_number > blocksize) {
- FLAC__ASSERT(encoder->private_->current_sample_number == blocksize+OVERREAD_);
- FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
- if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
- return false;
- /* move unprocessed overread samples to beginnings of arrays */
- for(channel = 0; channel < channels; channel++)
- encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
- if(encoder->protected_->do_mid_side_stereo) {
- encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
- encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
- }
- encoder->private_->current_sample_number = 1;
- }
- } while(j < samples);
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
-{
- unsigned i, j, k, channel;
- FLAC__int32 x, mid, side;
- const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
-
- j = k = 0;
- /*
- * we have several flavors of the same basic loop, optimized for
- * different conditions:
- */
- if(encoder->protected_->do_mid_side_stereo && channels == 2) {
- /*
- * stereo coding: unroll channel loop
- */
- do {
- if(encoder->protected_->verify)
- append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
-
- /* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
- for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
- encoder->private_->integer_signal[0][i] = mid = side = buffer[k++];
- x = buffer[k++];
- encoder->private_->integer_signal[1][i] = x;
- mid += x;
- side -= x;
- mid >>= 1; /* NOTE: not the same as 'mid = (left + right) / 2' ! */
- encoder->private_->integer_signal_mid_side[1][i] = side;
- encoder->private_->integer_signal_mid_side[0][i] = mid;
- }
- encoder->private_->current_sample_number = i;
- /* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
- if(i > blocksize) {
- if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
- return false;
- /* move unprocessed overread samples to beginnings of arrays */
- FLAC__ASSERT(i == blocksize+OVERREAD_);
- FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
- encoder->private_->integer_signal[0][0] = encoder->private_->integer_signal[0][blocksize];
- encoder->private_->integer_signal[1][0] = encoder->private_->integer_signal[1][blocksize];
- encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
- encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
- encoder->private_->current_sample_number = 1;
- }
- } while(j < samples);
- }
- else {
- /*
- * independent channel coding: buffer each channel in inner loop
- */
- do {
- if(encoder->protected_->verify)
- append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
-
- /* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
- for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
- for(channel = 0; channel < channels; channel++)
- encoder->private_->integer_signal[channel][i] = buffer[k++];
- }
- encoder->private_->current_sample_number = i;
- /* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
- if(i > blocksize) {
- if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
- return false;
- /* move unprocessed overread samples to beginnings of arrays */
- FLAC__ASSERT(i == blocksize+OVERREAD_);
- FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
- for(channel = 0; channel < channels; channel++)
- encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
- encoder->private_->current_sample_number = 1;
- }
- } while(j < samples);
- }
-
- return true;
-}
-
-/***********************************************************************
- *
- * Private class methods
- *
- ***********************************************************************/
-
-void set_defaults_(FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
-
-#ifdef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
- encoder->protected_->verify = true;
-#else
- encoder->protected_->verify = false;
-#endif
- encoder->protected_->streamable_subset = true;
- encoder->protected_->do_md5 = true;
- encoder->protected_->do_mid_side_stereo = false;
- encoder->protected_->loose_mid_side_stereo = false;
- encoder->protected_->channels = 2;
- encoder->protected_->bits_per_sample = 16;
- encoder->protected_->sample_rate = 44100;
- encoder->protected_->blocksize = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->protected_->num_apodizations = 1;
- encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
- encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
-#endif
- encoder->protected_->max_lpc_order = 0;
- encoder->protected_->qlp_coeff_precision = 0;
- encoder->protected_->do_qlp_coeff_prec_search = false;
- encoder->protected_->do_exhaustive_model_search = false;
- encoder->protected_->do_escape_coding = false;
- encoder->protected_->min_residual_partition_order = 0;
- encoder->protected_->max_residual_partition_order = 0;
- encoder->protected_->rice_parameter_search_dist = 0;
- encoder->protected_->total_samples_estimate = 0;
- encoder->protected_->metadata = 0;
- encoder->protected_->num_metadata_blocks = 0;
-
- encoder->private_->seek_table = 0;
- encoder->private_->disable_constant_subframes = false;
- encoder->private_->disable_fixed_subframes = false;
- encoder->private_->disable_verbatim_subframes = false;
-#if FLAC__HAS_OGG
- encoder->private_->is_ogg = false;
-#endif
- encoder->private_->read_callback = 0;
- encoder->private_->write_callback = 0;
- encoder->private_->seek_callback = 0;
- encoder->private_->tell_callback = 0;
- encoder->private_->metadata_callback = 0;
- encoder->private_->progress_callback = 0;
- encoder->private_->client_data = 0;
-
-#if FLAC__HAS_OGG
- FLAC__ogg_encoder_aspect_set_defaults(&encoder->protected_->ogg_encoder_aspect);
-#endif
-}
-
-void free_(FLAC__StreamEncoder *encoder)
-{
- unsigned i, channel;
-
- FLAC__ASSERT(0 != encoder);
- if(encoder->protected_->metadata) {
- free(encoder->protected_->metadata);
- encoder->protected_->metadata = 0;
- encoder->protected_->num_metadata_blocks = 0;
- }
- for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 != encoder->private_->integer_signal_unaligned[i]) {
- free(encoder->private_->integer_signal_unaligned[i]);
- encoder->private_->integer_signal_unaligned[i] = 0;
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(0 != encoder->private_->real_signal_unaligned[i]) {
- free(encoder->private_->real_signal_unaligned[i]);
- encoder->private_->real_signal_unaligned[i] = 0;
- }
-#endif
- }
- for(i = 0; i < 2; i++) {
- if(0 != encoder->private_->integer_signal_mid_side_unaligned[i]) {
- free(encoder->private_->integer_signal_mid_side_unaligned[i]);
- encoder->private_->integer_signal_mid_side_unaligned[i] = 0;
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(0 != encoder->private_->real_signal_mid_side_unaligned[i]) {
- free(encoder->private_->real_signal_mid_side_unaligned[i]);
- encoder->private_->real_signal_mid_side_unaligned[i] = 0;
- }
-#endif
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- for(i = 0; i < encoder->protected_->num_apodizations; i++) {
- if(0 != encoder->private_->window_unaligned[i]) {
- free(encoder->private_->window_unaligned[i]);
- encoder->private_->window_unaligned[i] = 0;
- }
- }
- if(0 != encoder->private_->windowed_signal_unaligned) {
- free(encoder->private_->windowed_signal_unaligned);
- encoder->private_->windowed_signal_unaligned = 0;
- }
-#endif
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- for(i = 0; i < 2; i++) {
- if(0 != encoder->private_->residual_workspace_unaligned[channel][i]) {
- free(encoder->private_->residual_workspace_unaligned[channel][i]);
- encoder->private_->residual_workspace_unaligned[channel][i] = 0;
- }
- }
- }
- for(channel = 0; channel < 2; channel++) {
- for(i = 0; i < 2; i++) {
- if(0 != encoder->private_->residual_workspace_mid_side_unaligned[channel][i]) {
- free(encoder->private_->residual_workspace_mid_side_unaligned[channel][i]);
- encoder->private_->residual_workspace_mid_side_unaligned[channel][i] = 0;
- }
- }
- }
- if(0 != encoder->private_->abs_residual_partition_sums_unaligned) {
- free(encoder->private_->abs_residual_partition_sums_unaligned);
- encoder->private_->abs_residual_partition_sums_unaligned = 0;
- }
- if(0 != encoder->private_->raw_bits_per_partition_unaligned) {
- free(encoder->private_->raw_bits_per_partition_unaligned);
- encoder->private_->raw_bits_per_partition_unaligned = 0;
- }
- if(encoder->protected_->verify) {
- for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 != encoder->private_->verify.input_fifo.data[i]) {
- free(encoder->private_->verify.input_fifo.data[i]);
- encoder->private_->verify.input_fifo.data[i] = 0;
- }
- }
- }
- FLAC__bitwriter_free(encoder->private_->frame);
-}
-
-FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_blocksize)
-{
- FLAC__bool ok;
- unsigned i, channel;
-
- FLAC__ASSERT(new_blocksize > 0);
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
- FLAC__ASSERT(encoder->private_->current_sample_number == 0);
-
- /* To avoid excessive malloc'ing, we only grow the buffer; no shrinking. */
- if(new_blocksize <= encoder->private_->input_capacity)
- return true;
-
- ok = true;
-
- /* WATCHOUT: FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx()
- * requires that the input arrays (in our case the integer signals)
- * have a buffer of up to 3 zeroes in front (at negative indices) for
- * alignment purposes; we use 4 in front to keep the data well-aligned.
- */
-
- for(i = 0; ok && i < encoder->protected_->channels; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_unaligned[i], &encoder->private_->integer_signal[i]);
- memset(encoder->private_->integer_signal[i], 0, sizeof(FLAC__int32)*4);
- encoder->private_->integer_signal[i] += 4;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if 0 /* @@@ currently unused */
- if(encoder->protected_->max_lpc_order > 0)
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize+OVERREAD_, &encoder->private_->real_signal_unaligned[i], &encoder->private_->real_signal[i]);
-#endif
-#endif
- }
- for(i = 0; ok && i < 2; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_mid_side_unaligned[i], &encoder->private_->integer_signal_mid_side[i]);
- memset(encoder->private_->integer_signal_mid_side[i], 0, sizeof(FLAC__int32)*4);
- encoder->private_->integer_signal_mid_side[i] += 4;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if 0 /* @@@ currently unused */
- if(encoder->protected_->max_lpc_order > 0)
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize+OVERREAD_, &encoder->private_->real_signal_mid_side_unaligned[i], &encoder->private_->real_signal_mid_side[i]);
-#endif
-#endif
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(ok && encoder->protected_->max_lpc_order > 0) {
- for(i = 0; ok && i < encoder->protected_->num_apodizations; i++)
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize, &encoder->private_->window_unaligned[i], &encoder->private_->window[i]);
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize, &encoder->private_->windowed_signal_unaligned, &encoder->private_->windowed_signal);
- }
-#endif
- for(channel = 0; ok && channel < encoder->protected_->channels; channel++) {
- for(i = 0; ok && i < 2; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize, &encoder->private_->residual_workspace_unaligned[channel][i], &encoder->private_->residual_workspace[channel][i]);
- }
- }
- for(channel = 0; ok && channel < 2; channel++) {
- for(i = 0; ok && i < 2; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize, &encoder->private_->residual_workspace_mid_side_unaligned[channel][i], &encoder->private_->residual_workspace_mid_side[channel][i]);
- }
- }
- /* the *2 is an approximation to the series 1 + 1/2 + 1/4 + ... that sums tree occupies in a flat array */
- /*@@@ new_blocksize*2 is too pessimistic, but to fix, we need smarter logic because a smaller new_blocksize can actually increase the # of partitions; would require moving this out into a separate function, then checking its capacity against the need of the current blocksize&min/max_partition_order (and maybe predictor order) */
- ok = ok && FLAC__memory_alloc_aligned_uint64_array(new_blocksize * 2, &encoder->private_->abs_residual_partition_sums_unaligned, &encoder->private_->abs_residual_partition_sums);
- if(encoder->protected_->do_escape_coding)
- ok = ok && FLAC__memory_alloc_aligned_unsigned_array(new_blocksize * 2, &encoder->private_->raw_bits_per_partition_unaligned, &encoder->private_->raw_bits_per_partition);
-
- /* now adjust the windows if the blocksize has changed */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(ok && new_blocksize != encoder->private_->input_capacity && encoder->protected_->max_lpc_order > 0) {
- for(i = 0; ok && i < encoder->protected_->num_apodizations; i++) {
- switch(encoder->protected_->apodizations[i].type) {
- case FLAC__APODIZATION_BARTLETT:
- FLAC__window_bartlett(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_BARTLETT_HANN:
- FLAC__window_bartlett_hann(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_BLACKMAN:
- FLAC__window_blackman(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE:
- FLAC__window_blackman_harris_4term_92db_sidelobe(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_CONNES:
- FLAC__window_connes(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_FLATTOP:
- FLAC__window_flattop(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_GAUSS:
- FLAC__window_gauss(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.gauss.stddev);
- break;
- case FLAC__APODIZATION_HAMMING:
- FLAC__window_hamming(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_HANN:
- FLAC__window_hann(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_KAISER_BESSEL:
- FLAC__window_kaiser_bessel(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_NUTTALL:
- FLAC__window_nuttall(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_RECTANGLE:
- FLAC__window_rectangle(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_TRIANGLE:
- FLAC__window_triangle(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_TUKEY:
- FLAC__window_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.tukey.p);
- break;
- case FLAC__APODIZATION_WELCH:
- FLAC__window_welch(encoder->private_->window[i], new_blocksize);
- break;
- default:
- FLAC__ASSERT(0);
- /* double protection */
- FLAC__window_hann(encoder->private_->window[i], new_blocksize);
- break;
- }
- }
- }
-#endif
-
- if(ok)
- encoder->private_->input_capacity = new_blocksize;
- else
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
-
- return ok;
-}
-
-FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, unsigned samples, FLAC__bool is_last_block)
-{
- const FLAC__byte *buffer;
- size_t bytes;
-
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(encoder->private_->frame));
-
- if(!FLAC__bitwriter_get_buffer(encoder->private_->frame, &buffer, &bytes)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- if(encoder->protected_->verify) {
- encoder->private_->verify.output.data = buffer;
- encoder->private_->verify.output.bytes = bytes;
- if(encoder->private_->verify.state_hint == ENCODER_IN_MAGIC) {
- encoder->private_->verify.needs_magic_hack = true;
- }
- else {
- if(!FLAC__stream_decoder_process_single(encoder->private_->verify.decoder)) {
- FLAC__bitwriter_release_buffer(encoder->private_->frame);
- FLAC__bitwriter_clear(encoder->private_->frame);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA)
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
- return false;
- }
- }
- }
-
- if(write_frame_(encoder, buffer, bytes, samples, is_last_block) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- FLAC__bitwriter_release_buffer(encoder->private_->frame);
- FLAC__bitwriter_clear(encoder->private_->frame);
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
-
- FLAC__bitwriter_release_buffer(encoder->private_->frame);
- FLAC__bitwriter_clear(encoder->private_->frame);
-
- if(samples > 0) {
- encoder->private_->streaminfo.data.stream_info.min_framesize = min(bytes, encoder->private_->streaminfo.data.stream_info.min_framesize);
- encoder->private_->streaminfo.data.stream_info.max_framesize = max(bytes, encoder->private_->streaminfo.data.stream_info.max_framesize);
- }
-
- return true;
-}
-
-FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, FLAC__bool is_last_block)
-{
- FLAC__StreamEncoderWriteStatus status;
- FLAC__uint64 output_position = 0;
-
- /* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
- if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &output_position, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- }
-
- /*
- * Watch for the STREAMINFO block and first SEEKTABLE block to go by and store their offsets.
- */
- if(samples == 0) {
- FLAC__MetadataType type = (buffer[0] & 0x7f);
- if(type == FLAC__METADATA_TYPE_STREAMINFO)
- encoder->protected_->streaminfo_offset = output_position;
- else if(type == FLAC__METADATA_TYPE_SEEKTABLE && encoder->protected_->seektable_offset == 0)
- encoder->protected_->seektable_offset = output_position;
- }
-
- /*
- * Mark the current seek point if hit (if audio_offset == 0 that
- * means we're still writing metadata and haven't hit the first
- * frame yet)
- */
- if(0 != encoder->private_->seek_table && encoder->protected_->audio_offset > 0 && encoder->private_->seek_table->num_points > 0) {
- const unsigned blocksize = FLAC__stream_encoder_get_blocksize(encoder);
- const FLAC__uint64 frame_first_sample = encoder->private_->samples_written;
- const FLAC__uint64 frame_last_sample = frame_first_sample + (FLAC__uint64)blocksize - 1;
- FLAC__uint64 test_sample;
- unsigned i;
- for(i = encoder->private_->first_seekpoint_to_check; i < encoder->private_->seek_table->num_points; i++) {
- test_sample = encoder->private_->seek_table->points[i].sample_number;
- if(test_sample > frame_last_sample) {
- break;
- }
- else if(test_sample >= frame_first_sample) {
- encoder->private_->seek_table->points[i].sample_number = frame_first_sample;
- encoder->private_->seek_table->points[i].stream_offset = output_position - encoder->protected_->audio_offset;
- encoder->private_->seek_table->points[i].frame_samples = blocksize;
- encoder->private_->first_seekpoint_to_check++;
- /* DO NOT: "break;" and here's why:
- * The seektable template may contain more than one target
- * sample for any given frame; we will keep looping, generating
- * duplicate seekpoints for them, and we'll clean it up later,
- * just before writing the seektable back to the metadata.
- */
- }
- else {
- encoder->private_->first_seekpoint_to_check++;
- }
- }
- }
-
-#if FLAC__HAS_OGG
- if(encoder->private_->is_ogg) {
- status = FLAC__ogg_encoder_aspect_write_callback_wrapper(
- &encoder->protected_->ogg_encoder_aspect,
- buffer,
- bytes,
- samples,
- encoder->private_->current_frame_number,
- is_last_block,
- (FLAC__OggEncoderAspectWriteCallbackProxy)encoder->private_->write_callback,
- encoder,
- encoder->private_->client_data
- );
- }
- else
-#endif
- status = encoder->private_->write_callback(encoder, buffer, bytes, samples, encoder->private_->current_frame_number, encoder->private_->client_data);
-
- if(status == FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->private_->bytes_written += bytes;
- encoder->private_->samples_written += samples;
- /* we keep a high watermark on the number of frames written because
- * when the encoder goes back to write metadata, 'current_frame'
- * will drop back to 0.
- */
- encoder->private_->frames_written = max(encoder->private_->frames_written, encoder->private_->current_frame_number+1);
- }
- else
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
-
- return status;
-}
-
-/* Gets called when the encoding process has finished so that we can update the STREAMINFO and SEEKTABLE blocks. */
-void update_metadata_(const FLAC__StreamEncoder *encoder)
-{
- FLAC__byte b[max(6, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)];
- const FLAC__StreamMetadata *metadata = &encoder->private_->streaminfo;
- const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
- const unsigned min_framesize = metadata->data.stream_info.min_framesize;
- const unsigned max_framesize = metadata->data.stream_info.max_framesize;
- const unsigned bps = metadata->data.stream_info.bits_per_sample;
- FLAC__StreamEncoderSeekStatus seek_status;
-
- FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
-
- /* All this is based on intimate knowledge of the stream header
- * layout, but a change to the header format that would break this
- * would also break all streams encoded in the previous format.
- */
-
- /*
- * Write MD5 signature
- */
- {
- const unsigned md5_offset =
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN
- ) / 8;
-
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + md5_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- if(encoder->private_->write_callback(encoder, metadata->data.stream_info.md5sum, 16, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
-
- /*
- * Write total samples
- */
- {
- const unsigned total_samples_byte_offset =
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN
- - 4
- ) / 8;
-
- b[0] = ((FLAC__byte)(bps-1) << 4) | (FLAC__byte)((samples >> 32) & 0x0F);
- b[1] = (FLAC__byte)((samples >> 24) & 0xFF);
- b[2] = (FLAC__byte)((samples >> 16) & 0xFF);
- b[3] = (FLAC__byte)((samples >> 8) & 0xFF);
- b[4] = (FLAC__byte)(samples & 0xFF);
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + total_samples_byte_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- if(encoder->private_->write_callback(encoder, b, 5, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
-
- /*
- * Write min/max framesize
- */
- {
- const unsigned min_framesize_offset =
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN
- ) / 8;
-
- b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
- b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF);
- b[2] = (FLAC__byte)(min_framesize & 0xFF);
- b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
- b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF);
- b[5] = (FLAC__byte)(max_framesize & 0xFF);
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + min_framesize_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- if(encoder->private_->write_callback(encoder, b, 6, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
-
- /*
- * Write seektable
- */
- if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) {
- unsigned i;
-
- FLAC__format_seektable_sort(encoder->private_->seek_table);
-
- FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table));
-
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->seektable_offset + FLAC__STREAM_METADATA_HEADER_LENGTH, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
-
- for(i = 0; i < encoder->private_->seek_table->num_points; i++) {
- FLAC__uint64 xx;
- unsigned x;
- xx = encoder->private_->seek_table->points[i].sample_number;
- b[7] = (FLAC__byte)xx; xx >>= 8;
- b[6] = (FLAC__byte)xx; xx >>= 8;
- b[5] = (FLAC__byte)xx; xx >>= 8;
- b[4] = (FLAC__byte)xx; xx >>= 8;
- b[3] = (FLAC__byte)xx; xx >>= 8;
- b[2] = (FLAC__byte)xx; xx >>= 8;
- b[1] = (FLAC__byte)xx; xx >>= 8;
- b[0] = (FLAC__byte)xx; xx >>= 8;
- xx = encoder->private_->seek_table->points[i].stream_offset;
- b[15] = (FLAC__byte)xx; xx >>= 8;
- b[14] = (FLAC__byte)xx; xx >>= 8;
- b[13] = (FLAC__byte)xx; xx >>= 8;
- b[12] = (FLAC__byte)xx; xx >>= 8;
- b[11] = (FLAC__byte)xx; xx >>= 8;
- b[10] = (FLAC__byte)xx; xx >>= 8;
- b[9] = (FLAC__byte)xx; xx >>= 8;
- b[8] = (FLAC__byte)xx; xx >>= 8;
- x = encoder->private_->seek_table->points[i].frame_samples;
- b[17] = (FLAC__byte)x; x >>= 8;
- b[16] = (FLAC__byte)x; x >>= 8;
- if(encoder->private_->write_callback(encoder, b, 18, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
- }
-}
-
-#if FLAC__HAS_OGG
-/* Gets called when the encoding process has finished so that we can update the STREAMINFO and SEEKTABLE blocks. */
-void update_ogg_metadata_(FLAC__StreamEncoder *encoder)
-{
- /* the # of bytes in the 1st packet that precede the STREAMINFO */
- static const unsigned FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH =
- FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
- FLAC__OGG_MAPPING_MAGIC_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
- FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH +
- FLAC__STREAM_SYNC_LENGTH
- ;
- FLAC__byte b[max(6, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)];
- const FLAC__StreamMetadata *metadata = &encoder->private_->streaminfo;
- const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
- const unsigned min_framesize = metadata->data.stream_info.min_framesize;
- const unsigned max_framesize = metadata->data.stream_info.max_framesize;
- ogg_page page;
-
- FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
- FLAC__ASSERT(0 != encoder->private_->seek_callback);
-
- /* Pre-check that client supports seeking, since we don't want the
- * ogg_helper code to ever have to deal with this condition.
- */
- if(encoder->private_->seek_callback(encoder, 0, encoder->private_->client_data) == FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED)
- return;
-
- /* All this is based on intimate knowledge of the stream header
- * layout, but a change to the header format that would break this
- * would also break all streams encoded in the previous format.
- */
-
- /**
- ** Write STREAMINFO stats
- **/
- simple_ogg_page__init(&page);
- if(!simple_ogg_page__get_at(encoder, encoder->protected_->streaminfo_offset, &page, encoder->private_->seek_callback, encoder->private_->read_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
-
- /*
- * Write MD5 signature
- */
- {
- const unsigned md5_offset =
- FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN
- ) / 8;
-
- if(md5_offset + 16 > (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
- memcpy(page.body + md5_offset, metadata->data.stream_info.md5sum, 16);
- }
-
- /*
- * Write total samples
- */
- {
- const unsigned total_samples_byte_offset =
- FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN
- - 4
- ) / 8;
-
- if(total_samples_byte_offset + 5 > (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
- b[0] = (FLAC__byte)page.body[total_samples_byte_offset] & 0xF0;
- b[0] |= (FLAC__byte)((samples >> 32) & 0x0F);
- b[1] = (FLAC__byte)((samples >> 24) & 0xFF);
- b[2] = (FLAC__byte)((samples >> 16) & 0xFF);
- b[3] = (FLAC__byte)((samples >> 8) & 0xFF);
- b[4] = (FLAC__byte)(samples & 0xFF);
- memcpy(page.body + total_samples_byte_offset, b, 5);
- }
-
- /*
- * Write min/max framesize
- */
- {
- const unsigned min_framesize_offset =
- FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN
- ) / 8;
-
- if(min_framesize_offset + 6 > (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
- b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
- b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF);
- b[2] = (FLAC__byte)(min_framesize & 0xFF);
- b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
- b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF);
- b[5] = (FLAC__byte)(max_framesize & 0xFF);
- memcpy(page.body + min_framesize_offset, b, 6);
- }
- if(!simple_ogg_page__set_at(encoder, encoder->protected_->streaminfo_offset, &page, encoder->private_->seek_callback, encoder->private_->write_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
- simple_ogg_page__clear(&page);
-
- /*
- * Write seektable
- */
- if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) {
- unsigned i;
- FLAC__byte *p;
-
- FLAC__format_seektable_sort(encoder->private_->seek_table);
-
- FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table));
-
- simple_ogg_page__init(&page);
- if(!simple_ogg_page__get_at(encoder, encoder->protected_->seektable_offset, &page, encoder->private_->seek_callback, encoder->private_->read_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
-
- if((FLAC__STREAM_METADATA_HEADER_LENGTH + 18*encoder->private_->seek_table->num_points) != (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
-
- for(i = 0, p = page.body + FLAC__STREAM_METADATA_HEADER_LENGTH; i < encoder->private_->seek_table->num_points; i++, p += 18) {
- FLAC__uint64 xx;
- unsigned x;
- xx = encoder->private_->seek_table->points[i].sample_number;
- b[7] = (FLAC__byte)xx; xx >>= 8;
- b[6] = (FLAC__byte)xx; xx >>= 8;
- b[5] = (FLAC__byte)xx; xx >>= 8;
- b[4] = (FLAC__byte)xx; xx >>= 8;
- b[3] = (FLAC__byte)xx; xx >>= 8;
- b[2] = (FLAC__byte)xx; xx >>= 8;
- b[1] = (FLAC__byte)xx; xx >>= 8;
- b[0] = (FLAC__byte)xx; xx >>= 8;
- xx = encoder->private_->seek_table->points[i].stream_offset;
- b[15] = (FLAC__byte)xx; xx >>= 8;
- b[14] = (FLAC__byte)xx; xx >>= 8;
- b[13] = (FLAC__byte)xx; xx >>= 8;
- b[12] = (FLAC__byte)xx; xx >>= 8;
- b[11] = (FLAC__byte)xx; xx >>= 8;
- b[10] = (FLAC__byte)xx; xx >>= 8;
- b[9] = (FLAC__byte)xx; xx >>= 8;
- b[8] = (FLAC__byte)xx; xx >>= 8;
- x = encoder->private_->seek_table->points[i].frame_samples;
- b[17] = (FLAC__byte)x; x >>= 8;
- b[16] = (FLAC__byte)x; x >>= 8;
- memcpy(p, b, 18);
- }
-
- if(!simple_ogg_page__set_at(encoder, encoder->protected_->seektable_offset, &page, encoder->private_->seek_callback, encoder->private_->write_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
- simple_ogg_page__clear(&page);
- }
-}
-#endif
-
-FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block, FLAC__bool is_last_block)
-{
- FLAC__uint16 crc;
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
-
- /*
- * Accumulate raw signal to the MD5 signature
- */
- if(encoder->protected_->do_md5 && !FLAC__MD5Accumulate(&encoder->private_->md5context, (const FLAC__int32 * const *)encoder->private_->integer_signal, encoder->protected_->channels, encoder->protected_->blocksize, (encoder->protected_->bits_per_sample+7) / 8)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /*
- * Process the frame header and subframes into the frame bitbuffer
- */
- if(!process_subframes_(encoder, is_fractional_block)) {
- /* the above function sets the state for us in case of an error */
- return false;
- }
-
- /*
- * Zero-pad the frame to a byte_boundary
- */
- if(!FLAC__bitwriter_zero_pad_to_byte_boundary(encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /*
- * CRC-16 the whole thing
- */
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(encoder->private_->frame));
- if(
- !FLAC__bitwriter_get_write_crc16(encoder->private_->frame, &crc) ||
- !FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, crc, FLAC__FRAME_FOOTER_CRC_LEN)
- ) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /*
- * Write it
- */
- if(!write_bitbuffer_(encoder, encoder->protected_->blocksize, is_last_block)) {
- /* the above function sets the state for us in case of an error */
- return false;
- }
-
- /*
- * Get ready for the next frame
- */
- encoder->private_->current_sample_number = 0;
- encoder->private_->current_frame_number++;
- encoder->private_->streaminfo.data.stream_info.total_samples += (FLAC__uint64)encoder->protected_->blocksize;
-
- return true;
-}
-
-FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block)
-{
- FLAC__FrameHeader frame_header;
- unsigned channel, min_partition_order = encoder->protected_->min_residual_partition_order, max_partition_order;
- FLAC__bool do_independent, do_mid_side;
-
- /*
- * Calculate the min,max Rice partition orders
- */
- if(is_fractional_block) {
- max_partition_order = 0;
- }
- else {
- max_partition_order = FLAC__format_get_max_rice_partition_order_from_blocksize(encoder->protected_->blocksize);
- max_partition_order = min(max_partition_order, encoder->protected_->max_residual_partition_order);
- }
- min_partition_order = min(min_partition_order, max_partition_order);
-
- /*
- * Setup the frame
- */
- frame_header.blocksize = encoder->protected_->blocksize;
- frame_header.sample_rate = encoder->protected_->sample_rate;
- frame_header.channels = encoder->protected_->channels;
- frame_header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT; /* the default unless the encoder determines otherwise */
- frame_header.bits_per_sample = encoder->protected_->bits_per_sample;
- frame_header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
- frame_header.number.frame_number = encoder->private_->current_frame_number;
-
- /*
- * Figure out what channel assignments to try
- */
- if(encoder->protected_->do_mid_side_stereo) {
- if(encoder->protected_->loose_mid_side_stereo) {
- if(encoder->private_->loose_mid_side_stereo_frame_count == 0) {
- do_independent = true;
- do_mid_side = true;
- }
- else {
- do_independent = (encoder->private_->last_channel_assignment == FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT);
- do_mid_side = !do_independent;
- }
- }
- else {
- do_independent = true;
- do_mid_side = true;
- }
- }
- else {
- do_independent = true;
- do_mid_side = false;
- }
-
- FLAC__ASSERT(do_independent || do_mid_side);
-
- /*
- * Check for wasted bits; set effective bps for each subframe
- */
- if(do_independent) {
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- const unsigned w = get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
- encoder->private_->subframe_workspace[channel][0].wasted_bits = encoder->private_->subframe_workspace[channel][1].wasted_bits = w;
- encoder->private_->subframe_bps[channel] = encoder->protected_->bits_per_sample - w;
- }
- }
- if(do_mid_side) {
- FLAC__ASSERT(encoder->protected_->channels == 2);
- for(channel = 0; channel < 2; channel++) {
- const unsigned w = get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
- encoder->private_->subframe_workspace_mid_side[channel][0].wasted_bits = encoder->private_->subframe_workspace_mid_side[channel][1].wasted_bits = w;
- encoder->private_->subframe_bps_mid_side[channel] = encoder->protected_->bits_per_sample - w + (channel==0? 0:1);
- }
- }
-
- /*
- * First do a normal encoding pass of each independent channel
- */
- if(do_independent) {
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- if(!
- process_subframe_(
- encoder,
- min_partition_order,
- max_partition_order,
- &frame_header,
- encoder->private_->subframe_bps[channel],
- encoder->private_->integer_signal[channel],
- encoder->private_->subframe_workspace_ptr[channel],
- encoder->private_->partitioned_rice_contents_workspace_ptr[channel],
- encoder->private_->residual_workspace[channel],
- encoder->private_->best_subframe+channel,
- encoder->private_->best_subframe_bits+channel
- )
- )
- return false;
- }
- }
-
- /*
- * Now do mid and side channels if requested
- */
- if(do_mid_side) {
- FLAC__ASSERT(encoder->protected_->channels == 2);
-
- for(channel = 0; channel < 2; channel++) {
- if(!
- process_subframe_(
- encoder,
- min_partition_order,
- max_partition_order,
- &frame_header,
- encoder->private_->subframe_bps_mid_side[channel],
- encoder->private_->integer_signal_mid_side[channel],
- encoder->private_->subframe_workspace_ptr_mid_side[channel],
- encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[channel],
- encoder->private_->residual_workspace_mid_side[channel],
- encoder->private_->best_subframe_mid_side+channel,
- encoder->private_->best_subframe_bits_mid_side+channel
- )
- )
- return false;
- }
- }
-
- /*
- * Compose the frame bitbuffer
- */
- if(do_mid_side) {
- unsigned left_bps = 0, right_bps = 0; /* initialized only to prevent superfluous compiler warning */
- FLAC__Subframe *left_subframe = 0, *right_subframe = 0; /* initialized only to prevent superfluous compiler warning */
- FLAC__ChannelAssignment channel_assignment;
-
- FLAC__ASSERT(encoder->protected_->channels == 2);
-
- if(encoder->protected_->loose_mid_side_stereo && encoder->private_->loose_mid_side_stereo_frame_count > 0) {
- channel_assignment = (encoder->private_->last_channel_assignment == FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT? FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT : FLAC__CHANNEL_ASSIGNMENT_MID_SIDE);
- }
- else {
- unsigned bits[4]; /* WATCHOUT - indexed by FLAC__ChannelAssignment */
- unsigned min_bits;
- int ca;
-
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT == 0);
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE == 1);
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE == 2);
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_MID_SIDE == 3);
- FLAC__ASSERT(do_independent && do_mid_side);
-
- /* We have to figure out which channel assignent results in the smallest frame */
- bits[FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT] = encoder->private_->best_subframe_bits [0] + encoder->private_->best_subframe_bits [1];
- bits[FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE ] = encoder->private_->best_subframe_bits [0] + encoder->private_->best_subframe_bits_mid_side[1];
- bits[FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE ] = encoder->private_->best_subframe_bits [1] + encoder->private_->best_subframe_bits_mid_side[1];
- bits[FLAC__CHANNEL_ASSIGNMENT_MID_SIDE ] = encoder->private_->best_subframe_bits_mid_side[0] + encoder->private_->best_subframe_bits_mid_side[1];
-
- channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
- min_bits = bits[channel_assignment];
- for(ca = 1; ca <= 3; ca++) {
- if(bits[ca] < min_bits) {
- min_bits = bits[ca];
- channel_assignment = (FLAC__ChannelAssignment)ca;
- }
- }
- }
-
- frame_header.channel_assignment = channel_assignment;
-
- if(!FLAC__frame_add_header(&frame_header, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
-
- switch(channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- left_subframe = &encoder->private_->subframe_workspace [0][encoder->private_->best_subframe [0]];
- right_subframe = &encoder->private_->subframe_workspace [1][encoder->private_->best_subframe [1]];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- left_subframe = &encoder->private_->subframe_workspace [0][encoder->private_->best_subframe [0]];
- right_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- left_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
- right_subframe = &encoder->private_->subframe_workspace [1][encoder->private_->best_subframe [1]];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- left_subframe = &encoder->private_->subframe_workspace_mid_side[0][encoder->private_->best_subframe_mid_side[0]];
- right_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- switch(channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- left_bps = encoder->private_->subframe_bps [0];
- right_bps = encoder->private_->subframe_bps [1];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- left_bps = encoder->private_->subframe_bps [0];
- right_bps = encoder->private_->subframe_bps_mid_side[1];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- left_bps = encoder->private_->subframe_bps_mid_side[1];
- right_bps = encoder->private_->subframe_bps [1];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- left_bps = encoder->private_->subframe_bps_mid_side[0];
- right_bps = encoder->private_->subframe_bps_mid_side[1];
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- /* note that encoder_add_subframe_ sets the state for us in case of an error */
- if(!add_subframe_(encoder, frame_header.blocksize, left_bps , left_subframe , encoder->private_->frame))
- return false;
- if(!add_subframe_(encoder, frame_header.blocksize, right_bps, right_subframe, encoder->private_->frame))
- return false;
- }
- else {
- if(!FLAC__frame_add_header(&frame_header, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
-
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- if(!add_subframe_(encoder, frame_header.blocksize, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
- /* the above function sets the state for us in case of an error */
- return false;
- }
- }
- }
-
- if(encoder->protected_->loose_mid_side_stereo) {
- encoder->private_->loose_mid_side_stereo_frame_count++;
- if(encoder->private_->loose_mid_side_stereo_frame_count >= encoder->private_->loose_mid_side_stereo_frames)
- encoder->private_->loose_mid_side_stereo_frame_count = 0;
- }
-
- encoder->private_->last_channel_assignment = frame_header.channel_assignment;
-
- return true;
-}
-
-FLAC__bool process_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned min_partition_order,
- unsigned max_partition_order,
- const FLAC__FrameHeader *frame_header,
- unsigned subframe_bps,
- const FLAC__int32 integer_signal[],
- FLAC__Subframe *subframe[2],
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
- FLAC__int32 *residual[2],
- unsigned *best_subframe,
- unsigned *best_bits
-)
-{
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__float fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
-#else
- FLAC__fixedpoint fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
-#endif
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__double lpc_residual_bits_per_sample;
- FLAC__real autoc[FLAC__MAX_LPC_ORDER+1]; /* WATCHOUT: the size is important even though encoder->protected_->max_lpc_order might be less; some asm routines need all the space */
- FLAC__double lpc_error[FLAC__MAX_LPC_ORDER];
- unsigned min_lpc_order, max_lpc_order, lpc_order;
- unsigned min_qlp_coeff_precision, max_qlp_coeff_precision, qlp_coeff_precision;
-#endif
- unsigned min_fixed_order, max_fixed_order, guess_fixed_order, fixed_order;
- unsigned rice_parameter;
- unsigned _candidate_bits, _best_bits;
- unsigned _best_subframe;
- /* only use RICE2 partitions if stream bps > 16 */
- const unsigned rice_parameter_limit = FLAC__stream_encoder_get_bits_per_sample(encoder) > 16? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-
- FLAC__ASSERT(frame_header->blocksize > 0);
-
- /* verbatim subframe is the baseline against which we measure other compressed subframes */
- _best_subframe = 0;
- if(encoder->private_->disable_verbatim_subframes && frame_header->blocksize >= FLAC__MAX_FIXED_ORDER)
- _best_bits = UINT_MAX;
- else
- _best_bits = evaluate_verbatim_subframe_(encoder, integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
-
- if(frame_header->blocksize >= FLAC__MAX_FIXED_ORDER) {
- unsigned signal_is_constant = false;
- guess_fixed_order = encoder->private_->local_fixed_compute_best_predictor(integer_signal+FLAC__MAX_FIXED_ORDER, frame_header->blocksize-FLAC__MAX_FIXED_ORDER, fixed_residual_bits_per_sample);
- /* check for constant subframe */
- if(
- !encoder->private_->disable_constant_subframes &&
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- fixed_residual_bits_per_sample[1] == 0.0
-#else
- fixed_residual_bits_per_sample[1] == FLAC__FP_ZERO
-#endif
- ) {
- /* the above means it's possible all samples are the same value; now double-check it: */
- unsigned i;
- signal_is_constant = true;
- for(i = 1; i < frame_header->blocksize; i++) {
- if(integer_signal[0] != integer_signal[i]) {
- signal_is_constant = false;
- break;
- }
- }
- }
- if(signal_is_constant) {
- _candidate_bits = evaluate_constant_subframe_(encoder, integer_signal[0], frame_header->blocksize, subframe_bps, subframe[!_best_subframe]);
- if(_candidate_bits < _best_bits) {
- _best_subframe = !_best_subframe;
- _best_bits = _candidate_bits;
- }
- }
- else {
- if(!encoder->private_->disable_fixed_subframes || (encoder->protected_->max_lpc_order == 0 && _best_bits == UINT_MAX)) {
- /* encode fixed */
- if(encoder->protected_->do_exhaustive_model_search) {
- min_fixed_order = 0;
- max_fixed_order = FLAC__MAX_FIXED_ORDER;
- }
- else {
- min_fixed_order = max_fixed_order = guess_fixed_order;
- }
- if(max_fixed_order >= frame_header->blocksize)
- max_fixed_order = frame_header->blocksize - 1;
- for(fixed_order = min_fixed_order; fixed_order <= max_fixed_order; fixed_order++) {
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(fixed_residual_bits_per_sample[fixed_order] >= (FLAC__float)subframe_bps)
- continue; /* don't even try */
- rice_parameter = (fixed_residual_bits_per_sample[fixed_order] > 0.0)? (unsigned)(fixed_residual_bits_per_sample[fixed_order]+0.5) : 0; /* 0.5 is for rounding */
-#else
- if(FLAC__fixedpoint_trunc(fixed_residual_bits_per_sample[fixed_order]) >= (int)subframe_bps)
- continue; /* don't even try */
- rice_parameter = (fixed_residual_bits_per_sample[fixed_order] > FLAC__FP_ZERO)? (unsigned)FLAC__fixedpoint_trunc(fixed_residual_bits_per_sample[fixed_order]+FLAC__FP_ONE_HALF) : 0; /* 0.5 is for rounding */
-#endif
- rice_parameter++; /* to account for the signed->unsigned conversion during rice coding */
- if(rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @0\n", rice_parameter, rice_parameter_limit - 1);
-#endif
- rice_parameter = rice_parameter_limit - 1;
- }
- _candidate_bits =
- evaluate_fixed_subframe_(
- encoder,
- integer_signal,
- residual[!_best_subframe],
- encoder->private_->abs_residual_partition_sums,
- encoder->private_->raw_bits_per_partition,
- frame_header->blocksize,
- subframe_bps,
- fixed_order,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- encoder->protected_->do_escape_coding,
- encoder->protected_->rice_parameter_search_dist,
- subframe[!_best_subframe],
- partitioned_rice_contents[!_best_subframe]
- );
- if(_candidate_bits < _best_bits) {
- _best_subframe = !_best_subframe;
- _best_bits = _candidate_bits;
- }
- }
- }
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- /* encode lpc */
- if(encoder->protected_->max_lpc_order > 0) {
- if(encoder->protected_->max_lpc_order >= frame_header->blocksize)
- max_lpc_order = frame_header->blocksize-1;
- else
- max_lpc_order = encoder->protected_->max_lpc_order;
- if(max_lpc_order > 0) {
- unsigned a;
- for (a = 0; a < encoder->protected_->num_apodizations; a++) {
- FLAC__lpc_window_data(integer_signal, encoder->private_->window[a], encoder->private_->windowed_signal, frame_header->blocksize);
- encoder->private_->local_lpc_compute_autocorrelation(encoder->private_->windowed_signal, frame_header->blocksize, max_lpc_order+1, autoc);
- /* if autoc[0] == 0.0, the signal is constant and we usually won't get here, but it can happen */
- if(autoc[0] != 0.0) {
- FLAC__lpc_compute_lp_coefficients(autoc, &max_lpc_order, encoder->private_->lp_coeff, lpc_error);
- if(encoder->protected_->do_exhaustive_model_search) {
- min_lpc_order = 1;
- }
- else {
- const unsigned guess_lpc_order =
- FLAC__lpc_compute_best_order(
- lpc_error,
- max_lpc_order,
- frame_header->blocksize,
- subframe_bps + (
- encoder->protected_->do_qlp_coeff_prec_search?
- FLAC__MIN_QLP_COEFF_PRECISION : /* have to guess; use the min possible size to avoid accidentally favoring lower orders */
- encoder->protected_->qlp_coeff_precision
- )
- );
- min_lpc_order = max_lpc_order = guess_lpc_order;
- }
- if(max_lpc_order >= frame_header->blocksize)
- max_lpc_order = frame_header->blocksize - 1;
- for(lpc_order = min_lpc_order; lpc_order <= max_lpc_order; lpc_order++) {
- lpc_residual_bits_per_sample = FLAC__lpc_compute_expected_bits_per_residual_sample(lpc_error[lpc_order-1], frame_header->blocksize-lpc_order);
- if(lpc_residual_bits_per_sample >= (FLAC__double)subframe_bps)
- continue; /* don't even try */
- rice_parameter = (lpc_residual_bits_per_sample > 0.0)? (unsigned)(lpc_residual_bits_per_sample+0.5) : 0; /* 0.5 is for rounding */
- rice_parameter++; /* to account for the signed->unsigned conversion during rice coding */
- if(rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @1\n", rice_parameter, rice_parameter_limit - 1);
-#endif
- rice_parameter = rice_parameter_limit - 1;
- }
- if(encoder->protected_->do_qlp_coeff_prec_search) {
- min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION;
- /* try to ensure a 32-bit datapath throughout for 16bps(+1bps for side channel) or less */
- if(subframe_bps <= 17) {
- max_qlp_coeff_precision = min(32 - subframe_bps - lpc_order, FLAC__MAX_QLP_COEFF_PRECISION);
- max_qlp_coeff_precision = max(max_qlp_coeff_precision, min_qlp_coeff_precision);
- }
- else
- max_qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
- }
- else {
- min_qlp_coeff_precision = max_qlp_coeff_precision = encoder->protected_->qlp_coeff_precision;
- }
- for(qlp_coeff_precision = min_qlp_coeff_precision; qlp_coeff_precision <= max_qlp_coeff_precision; qlp_coeff_precision++) {
- _candidate_bits =
- evaluate_lpc_subframe_(
- encoder,
- integer_signal,
- residual[!_best_subframe],
- encoder->private_->abs_residual_partition_sums,
- encoder->private_->raw_bits_per_partition,
- encoder->private_->lp_coeff[lpc_order-1],
- frame_header->blocksize,
- subframe_bps,
- lpc_order,
- qlp_coeff_precision,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- encoder->protected_->do_escape_coding,
- encoder->protected_->rice_parameter_search_dist,
- subframe[!_best_subframe],
- partitioned_rice_contents[!_best_subframe]
- );
- if(_candidate_bits > 0) { /* if == 0, there was a problem quantizing the lpcoeffs */
- if(_candidate_bits < _best_bits) {
- _best_subframe = !_best_subframe;
- _best_bits = _candidate_bits;
- }
- }
- }
- }
- }
- }
- }
- }
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
- }
- }
-
- /* under rare circumstances this can happen when all but lpc subframe types are disabled: */
- if(_best_bits == UINT_MAX) {
- FLAC__ASSERT(_best_subframe == 0);
- _best_bits = evaluate_verbatim_subframe_(encoder, integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
- }
-
- *best_subframe = _best_subframe;
- *best_bits = _best_bits;
-
- return true;
-}
-
-FLAC__bool add_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned blocksize,
- unsigned subframe_bps,
- const FLAC__Subframe *subframe,
- FLAC__BitWriter *frame
-)
-{
- switch(subframe->type) {
- case FLAC__SUBFRAME_TYPE_CONSTANT:
- if(!FLAC__subframe_add_constant(&(subframe->data.constant), subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- case FLAC__SUBFRAME_TYPE_FIXED:
- if(!FLAC__subframe_add_fixed(&(subframe->data.fixed), blocksize - subframe->data.fixed.order, subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- case FLAC__SUBFRAME_TYPE_LPC:
- if(!FLAC__subframe_add_lpc(&(subframe->data.lpc), blocksize - subframe->data.lpc.order, subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- case FLAC__SUBFRAME_TYPE_VERBATIM:
- if(!FLAC__subframe_add_verbatim(&(subframe->data.verbatim), blocksize, subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- return true;
-}
-
-#define SPOTCHECK_ESTIMATE 0
-#if SPOTCHECK_ESTIMATE
-static void spotcheck_subframe_estimate_(
- FLAC__StreamEncoder *encoder,
- unsigned blocksize,
- unsigned subframe_bps,
- const FLAC__Subframe *subframe,
- unsigned estimate
-)
-{
- FLAC__bool ret;
- FLAC__BitWriter *frame = FLAC__bitwriter_new();
- if(frame == 0) {
- fprintf(stderr, "EST: can't allocate frame\n");
- return;
- }
- if(!FLAC__bitwriter_init(frame)) {
- fprintf(stderr, "EST: can't init frame\n");
- return;
- }
- ret = add_subframe_(encoder, blocksize, subframe_bps, subframe, frame);
- FLAC__ASSERT(ret);
- {
- const unsigned actual = FLAC__bitwriter_get_input_bits_unconsumed(frame);
- if(estimate != actual)
- fprintf(stderr, "EST: bad, frame#%u sub#%%d type=%8s est=%u, actual=%u, delta=%d\n", encoder->private_->current_frame_number, FLAC__SubframeTypeString[subframe->type], estimate, actual, (int)actual-(int)estimate);
- }
- FLAC__bitwriter_delete(frame);
-}
-#endif
-
-unsigned evaluate_constant_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal,
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-)
-{
- unsigned estimate;
- subframe->type = FLAC__SUBFRAME_TYPE_CONSTANT;
- subframe->data.constant.value = signal;
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + subframe_bps;
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#else
- (void)encoder, (void)blocksize;
-#endif
-
- return estimate;
-}
-
-unsigned evaluate_fixed_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-)
-{
- unsigned i, residual_bits, estimate;
- const unsigned residual_samples = blocksize - order;
-
- FLAC__fixed_compute_residual(signal+order, residual_samples, order, residual);
-
- subframe->type = FLAC__SUBFRAME_TYPE_FIXED;
-
- subframe->data.fixed.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
- subframe->data.fixed.entropy_coding_method.data.partitioned_rice.contents = partitioned_rice_contents;
- subframe->data.fixed.residual = residual;
-
- residual_bits =
- find_best_partition_order_(
- encoder->private_,
- residual,
- abs_residual_partition_sums,
- raw_bits_per_partition,
- residual_samples,
- order,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- subframe_bps,
- do_escape_coding,
- rice_parameter_search_dist,
- &subframe->data.fixed.entropy_coding_method
- );
-
- subframe->data.fixed.order = order;
- for(i = 0; i < order; i++)
- subframe->data.fixed.warmup[i] = signal[i];
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + (order * subframe_bps) + residual_bits;
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#endif
-
- return estimate;
-}
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned evaluate_lpc_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- const FLAC__real lp_coeff[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned qlp_coeff_precision,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-)
-{
- FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER];
- unsigned i, residual_bits, estimate;
- int quantization, ret;
- const unsigned residual_samples = blocksize - order;
-
- /* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps streams */
- if(subframe_bps <= 16) {
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= FLAC__MAX_LPC_ORDER);
- qlp_coeff_precision = min(qlp_coeff_precision, 32 - subframe_bps - FLAC__bitmath_ilog2(order));
- }
-
- ret = FLAC__lpc_quantize_coefficients(lp_coeff, order, qlp_coeff_precision, qlp_coeff, &quantization);
- if(ret != 0)
- return 0; /* this is a hack to indicate to the caller that we can't do lp at this order on this subframe */
-
- if(subframe_bps + qlp_coeff_precision + FLAC__bitmath_ilog2(order) <= 32)
- if(subframe_bps <= 16 && qlp_coeff_precision <= 16)
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit(signal+order, residual_samples, qlp_coeff, order, quantization, residual);
- else
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients(signal+order, residual_samples, qlp_coeff, order, quantization, residual);
- else
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit(signal+order, residual_samples, qlp_coeff, order, quantization, residual);
-
- subframe->type = FLAC__SUBFRAME_TYPE_LPC;
-
- subframe->data.lpc.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
- subframe->data.lpc.entropy_coding_method.data.partitioned_rice.contents = partitioned_rice_contents;
- subframe->data.lpc.residual = residual;
-
- residual_bits =
- find_best_partition_order_(
- encoder->private_,
- residual,
- abs_residual_partition_sums,
- raw_bits_per_partition,
- residual_samples,
- order,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- subframe_bps,
- do_escape_coding,
- rice_parameter_search_dist,
- &subframe->data.lpc.entropy_coding_method
- );
-
- subframe->data.lpc.order = order;
- subframe->data.lpc.qlp_coeff_precision = qlp_coeff_precision;
- subframe->data.lpc.quantization_level = quantization;
- memcpy(subframe->data.lpc.qlp_coeff, qlp_coeff, sizeof(FLAC__int32)*FLAC__MAX_LPC_ORDER);
- for(i = 0; i < order; i++)
- subframe->data.lpc.warmup[i] = signal[i];
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN + FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN + (order * (qlp_coeff_precision + subframe_bps)) + residual_bits;
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#endif
-
- return estimate;
-}
-#endif
-
-unsigned evaluate_verbatim_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-)
-{
- unsigned estimate;
-
- subframe->type = FLAC__SUBFRAME_TYPE_VERBATIM;
-
- subframe->data.verbatim.data = signal;
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + (blocksize * subframe_bps);
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#else
- (void)encoder;
-#endif
-
- return estimate;
-}
-
-unsigned find_best_partition_order_(
- FLAC__StreamEncoderPrivate *private_,
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__EntropyCodingMethod *best_ecm
-)
-{
- unsigned residual_bits, best_residual_bits = 0;
- unsigned best_parameters_index = 0;
- unsigned best_partition_order = 0;
- const unsigned blocksize = residual_samples + predictor_order;
-
- max_partition_order = FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(max_partition_order, blocksize, predictor_order);
- min_partition_order = min(min_partition_order, max_partition_order);
-
- precompute_partition_info_sums_(residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order, bps);
-
- if(do_escape_coding)
- precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
-
- {
- int partition_order;
- unsigned sum;
-
- for(partition_order = (int)max_partition_order, sum = 0; partition_order >= (int)min_partition_order; partition_order--) {
- if(!
- set_partitioned_rice_(
-#ifdef EXACT_RICE_BITS_CALCULATION
- residual,
-#endif
- abs_residual_partition_sums+sum,
- raw_bits_per_partition+sum,
- residual_samples,
- predictor_order,
- rice_parameter,
- rice_parameter_limit,
- rice_parameter_search_dist,
- (unsigned)partition_order,
- do_escape_coding,
- &private_->partitioned_rice_contents_extra[!best_parameters_index],
- &residual_bits
- )
- )
- {
- FLAC__ASSERT(best_residual_bits != 0);
- break;
- }
- sum += 1u << partition_order;
- if(best_residual_bits == 0 || residual_bits < best_residual_bits) {
- best_residual_bits = residual_bits;
- best_parameters_index = !best_parameters_index;
- best_partition_order = partition_order;
- }
- }
- }
-
- best_ecm->data.partitioned_rice.order = best_partition_order;
-
- {
- /*
- * We are allowed to de-const the pointer based on our special
- * knowledge; it is const to the outside world.
- */
- FLAC__EntropyCodingMethod_PartitionedRiceContents* prc = (FLAC__EntropyCodingMethod_PartitionedRiceContents*)best_ecm->data.partitioned_rice.contents;
- unsigned partition;
-
- /* save best parameters and raw_bits */
- FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(prc, max(6, best_partition_order));
- memcpy(prc->parameters, private_->partitioned_rice_contents_extra[best_parameters_index].parameters, sizeof(unsigned)*((unsigned long long)1<<(best_partition_order)));
- if(do_escape_coding)
- memcpy(prc->raw_bits, private_->partitioned_rice_contents_extra[best_parameters_index].raw_bits, sizeof(unsigned)*((unsigned long long)1<<(best_partition_order)));
- /*
- * Now need to check if the type should be changed to
- * FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 based on the
- * size of the rice parameters.
- */
- for(partition = 0; partition < (1u<<best_partition_order); partition++) {
- if(prc->parameters[partition] >= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER) {
- best_ecm->type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2;
- break;
- }
- }
- }
-
- return best_residual_bits;
-}
-
-#if defined(FLAC__CPU_IA32) && !defined FLAC__NO_ASM && defined FLAC__HAS_NASM
-extern void precompute_partition_info_sums_32bit_asm_ia32_(
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned blocksize,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order
-);
-#endif
-
-void precompute_partition_info_sums_(
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps
-)
-{
- const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
- unsigned partitions = 1u << max_partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
-#if defined(FLAC__CPU_IA32) && !defined FLAC__NO_ASM && defined FLAC__HAS_NASM
- /* slightly pessimistic but still catches all common cases */
- /* WATCHOUT: "+ bps" is an assumption that the average residual magnitude will not be more than "bps" bits */
- if(FLAC__bitmath_ilog2(default_partition_samples) + bps < 32) {
- precompute_partition_info_sums_32bit_asm_ia32_(residual, abs_residual_partition_sums, residual_samples + predictor_order, predictor_order, min_partition_order, max_partition_order);
- return;
- }
-#endif
-
- /* first do max_partition_order */
- {
- unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
- /* slightly pessimistic but still catches all common cases */
- /* WATCHOUT: "+ bps" is an assumption that the average residual magnitude will not be more than "bps" bits */
- if(FLAC__bitmath_ilog2(default_partition_samples) + bps < 32) {
- FLAC__uint32 abs_residual_partition_sum;
-
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- end += default_partition_samples;
- abs_residual_partition_sum = 0;
- for( ; residual_sample < end; residual_sample++)
- abs_residual_partition_sum += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
- abs_residual_partition_sums[partition] = abs_residual_partition_sum;
- }
- }
- else { /* have to pessimistically use 64 bits for accumulator */
- FLAC__uint64 abs_residual_partition_sum;
-
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- end += default_partition_samples;
- abs_residual_partition_sum = 0;
- for( ; residual_sample < end; residual_sample++)
- abs_residual_partition_sum += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
- abs_residual_partition_sums[partition] = abs_residual_partition_sum;
- }
- }
- }
-
- /* now merge partitions for lower orders */
- {
- unsigned from_partition = 0, to_partition = partitions;
- int partition_order;
- for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned i;
- partitions >>= 1;
- for(i = 0; i < partitions; i++) {
- abs_residual_partition_sums[to_partition++] =
- abs_residual_partition_sums[from_partition ] +
- abs_residual_partition_sums[from_partition+1];
- from_partition += 2;
- }
- }
- }
-}
-
-void precompute_partition_info_escapes_(
- const FLAC__int32 residual[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order
-)
-{
- int partition_order;
- unsigned from_partition, to_partition = 0;
- const unsigned blocksize = residual_samples + predictor_order;
-
- /* first do max_partition_order */
- for(partition_order = (int)max_partition_order; partition_order >= 0; partition_order--) {
- FLAC__int32 r;
- FLAC__uint32 rmax;
- unsigned partition, partition_sample, partition_samples, residual_sample;
- const unsigned partitions = 1u << partition_order;
- const unsigned default_partition_samples = blocksize >> partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- partition_samples = default_partition_samples;
- if(partition == 0)
- partition_samples -= predictor_order;
- rmax = 0;
- for(partition_sample = 0; partition_sample < partition_samples; partition_sample++) {
- r = residual[residual_sample++];
- /* OPT: maybe faster: rmax |= r ^ (r>>31) */
- if(r < 0)
- rmax |= ~r;
- else
- rmax |= r;
- }
- /* now we know all residual values are in the range [-rmax-1,rmax] */
- raw_bits_per_partition[partition] = rmax? FLAC__bitmath_ilog2(rmax) + 2 : 1;
- }
- to_partition = partitions;
- break; /*@@@ yuck, should remove the 'for' loop instead */
- }
-
- /* now merge partitions for lower orders */
- for(from_partition = 0, --partition_order; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned m;
- unsigned i;
- const unsigned partitions = 1u << partition_order;
- for(i = 0; i < partitions; i++) {
- m = raw_bits_per_partition[from_partition];
- from_partition++;
- raw_bits_per_partition[to_partition] = max(m, raw_bits_per_partition[from_partition]);
- from_partition++;
- to_partition++;
- }
- }
-}
-
-#ifdef EXACT_RICE_BITS_CALCULATION
-static FLaC__INLINE unsigned count_rice_bits_in_partition_(
- const unsigned rice_parameter,
- const unsigned partition_samples,
- const FLAC__int32 *residual
-)
-{
- unsigned i, partition_bits =
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN + /* actually could end up being FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN but err on side of 16bps */
- (1+rice_parameter) * partition_samples /* 1 for unary stop bit + rice_parameter for the binary portion */
- ;
- for(i = 0; i < partition_samples; i++)
- partition_bits += ( (FLAC__uint32)((residual[i]<<1)^(residual[i]>>31)) >> rice_parameter );
- return partition_bits;
-}
-#else
-static FLaC__INLINE unsigned count_rice_bits_in_partition_(
- const unsigned rice_parameter,
- const unsigned partition_samples,
- const FLAC__uint64 abs_residual_partition_sum
-)
-{
- return
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN + /* actually could end up being FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN but err on side of 16bps */
- (1+rice_parameter) * partition_samples + /* 1 for unary stop bit + rice_parameter for the binary portion */
- (
- rice_parameter?
- (unsigned)(abs_residual_partition_sum >> (rice_parameter-1)) /* rice_parameter-1 because the real coder sign-folds instead of using a sign bit */
- : (unsigned)(abs_residual_partition_sum << 1) /* can't shift by negative number, so reverse */
- )
- - (partition_samples >> 1)
- /* -(partition_samples>>1) to subtract out extra contributions to the abs_residual_partition_sum.
- * The actual number of bits used is closer to the sum(for all i in the partition) of abs(residual[i])>>(rice_parameter-1)
- * By using the abs_residual_partition sum, we also add in bits in the LSBs that would normally be shifted out.
- * So the subtraction term tries to guess how many extra bits were contributed.
- * If the LSBs are randomly distributed, this should average to 0.5 extra bits per sample.
- */
- ;
-}
-#endif
-
-FLAC__bool set_partitioned_rice_(
-#ifdef EXACT_RICE_BITS_CALCULATION
- const FLAC__int32 residual[],
-#endif
- const FLAC__uint64 abs_residual_partition_sums[],
- const unsigned raw_bits_per_partition[],
- const unsigned residual_samples,
- const unsigned predictor_order,
- const unsigned suggested_rice_parameter,
- const unsigned rice_parameter_limit,
- const unsigned rice_parameter_search_dist,
- const unsigned partition_order,
- const FLAC__bool search_for_escapes,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
- unsigned *bits
-)
-{
- unsigned rice_parameter, partition_bits;
- unsigned best_partition_bits, best_rice_parameter = 0;
- unsigned bits_ = FLAC__ENTROPY_CODING_METHOD_TYPE_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN;
- unsigned *parameters, *raw_bits;
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- unsigned min_rice_parameter, max_rice_parameter;
-#else
- (void)rice_parameter_search_dist;
-#endif
-
- FLAC__ASSERT(suggested_rice_parameter < FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER);
- FLAC__ASSERT(rice_parameter_limit <= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER);
-
- FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(partitioned_rice_contents, max(6, partition_order));
- parameters = partitioned_rice_contents->parameters;
- raw_bits = partitioned_rice_contents->raw_bits;
-
- if(partition_order == 0) {
- best_partition_bits = (unsigned)(-1);
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- if(rice_parameter_search_dist) {
- if(suggested_rice_parameter < rice_parameter_search_dist)
- min_rice_parameter = 0;
- else
- min_rice_parameter = suggested_rice_parameter - rice_parameter_search_dist;
- max_rice_parameter = suggested_rice_parameter + rice_parameter_search_dist;
- if(max_rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @5\n", max_rice_parameter, rice_parameter_limit - 1);
-#endif
- max_rice_parameter = rice_parameter_limit - 1;
- }
- }
- else
- min_rice_parameter = max_rice_parameter = suggested_rice_parameter;
-
- for(rice_parameter = min_rice_parameter; rice_parameter <= max_rice_parameter; rice_parameter++) {
-#else
- rice_parameter = suggested_rice_parameter;
-#endif
-#ifdef EXACT_RICE_BITS_CALCULATION
- partition_bits = count_rice_bits_in_partition_(rice_parameter, residual_samples, residual);
-#else
- partition_bits = count_rice_bits_in_partition_(rice_parameter, residual_samples, abs_residual_partition_sums[0]);
-#endif
- if(partition_bits < best_partition_bits) {
- best_rice_parameter = rice_parameter;
- best_partition_bits = partition_bits;
- }
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- }
-#endif
- if(search_for_escapes) {
- partition_bits = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN + raw_bits_per_partition[0] * residual_samples;
- if(partition_bits <= best_partition_bits) {
- raw_bits[0] = raw_bits_per_partition[0];
- best_rice_parameter = 0; /* will be converted to appropriate escape parameter later */
- best_partition_bits = partition_bits;
- }
- else
- raw_bits[0] = 0;
- }
- parameters[0] = best_rice_parameter;
- bits_ += best_partition_bits;
- }
- else {
- unsigned partition, residual_sample;
- unsigned partition_samples;
- FLAC__uint64 mean, k;
- const unsigned partitions = 1u << partition_order;
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- partition_samples = (residual_samples+predictor_order) >> partition_order;
- if(partition == 0) {
- if(partition_samples <= predictor_order)
- return false;
- else
- partition_samples -= predictor_order;
- }
- mean = abs_residual_partition_sums[partition];
- /* we are basically calculating the size in bits of the
- * average residual magnitude in the partition:
- * rice_parameter = floor(log2(mean/partition_samples))
- * 'mean' is not a good name for the variable, it is
- * actually the sum of magnitudes of all residual values
- * in the partition, so the actual mean is
- * mean/partition_samples
- */
- for(rice_parameter = 0, k = partition_samples; k < mean; rice_parameter++, k <<= 1)
- ;
- if(rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @6\n", rice_parameter, rice_parameter_limit - 1);
-#endif
- rice_parameter = rice_parameter_limit - 1;
- }
-
- best_partition_bits = (unsigned)(-1);
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- if(rice_parameter_search_dist) {
- if(rice_parameter < rice_parameter_search_dist)
- min_rice_parameter = 0;
- else
- min_rice_parameter = rice_parameter - rice_parameter_search_dist;
- max_rice_parameter = rice_parameter + rice_parameter_search_dist;
- if(max_rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @7\n", max_rice_parameter, rice_parameter_limit - 1);
-#endif
- max_rice_parameter = rice_parameter_limit - 1;
- }
- }
- else
- min_rice_parameter = max_rice_parameter = rice_parameter;
-
- for(rice_parameter = min_rice_parameter; rice_parameter <= max_rice_parameter; rice_parameter++) {
-#endif
-#ifdef EXACT_RICE_BITS_CALCULATION
- partition_bits = count_rice_bits_in_partition_(rice_parameter, partition_samples, residual+residual_sample);
-#else
- partition_bits = count_rice_bits_in_partition_(rice_parameter, partition_samples, abs_residual_partition_sums[partition]);
-#endif
- if(partition_bits < best_partition_bits) {
- best_rice_parameter = rice_parameter;
- best_partition_bits = partition_bits;
- }
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- }
-#endif
- if(search_for_escapes) {
- partition_bits = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN + raw_bits_per_partition[partition] * partition_samples;
- if(partition_bits <= best_partition_bits) {
- raw_bits[partition] = raw_bits_per_partition[partition];
- best_rice_parameter = 0; /* will be converted to appropriate escape parameter later */
- best_partition_bits = partition_bits;
- }
- else
- raw_bits[partition] = 0;
- }
- parameters[partition] = best_rice_parameter;
- bits_ += best_partition_bits;
- residual_sample += partition_samples;
- }
- }
-
- *bits = bits_;
- return true;
-}
-
-unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples)
-{
- unsigned i, shift;
- FLAC__int32 x = 0;
-
- for(i = 0; i < samples && !(x&1); i++)
- x |= signal[i];
-
- if(x == 0) {
- shift = 0;
- }
- else {
- for(shift = 0; !(x&1); shift++)
- x >>= 1;
- }
-
- if(shift > 0) {
- for(i = 0; i < samples; i++)
- signal[i] >>= shift;
- }
-
- return shift;
-}
-
-void append_to_verify_fifo_(verify_input_fifo *fifo, const FLAC__int32 * const input[], unsigned input_offset, unsigned channels, unsigned wide_samples)
-{
- unsigned channel;
-
- for(channel = 0; channel < channels; channel++)
- memcpy(&fifo->data[channel][fifo->tail], &input[channel][input_offset], sizeof(FLAC__int32) * wide_samples);
-
- fifo->tail += wide_samples;
-
- FLAC__ASSERT(fifo->tail <= fifo->size);
-}
-
-void append_to_verify_fifo_interleaved_(verify_input_fifo *fifo, const FLAC__int32 input[], unsigned input_offset, unsigned channels, unsigned wide_samples)
-{
- unsigned channel;
- unsigned sample, wide_sample;
- unsigned tail = fifo->tail;
-
- sample = input_offset * channels;
- for(wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
- for(channel = 0; channel < channels; channel++)
- fifo->data[channel][tail] = input[sample++];
- tail++;
- }
- fifo->tail = tail;
-
- FLAC__ASSERT(fifo->tail <= fifo->size);
-}
-
-FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder*)client_data;
- const size_t encoded_bytes = encoder->private_->verify.output.bytes;
- (void)decoder;
-
- if(encoder->private_->verify.needs_magic_hack) {
- FLAC__ASSERT(*bytes >= FLAC__STREAM_SYNC_LENGTH);
- *bytes = FLAC__STREAM_SYNC_LENGTH;
- memcpy(buffer, FLAC__STREAM_SYNC_STRING, *bytes);
- encoder->private_->verify.needs_magic_hack = false;
- }
- else {
- if(encoded_bytes == 0) {
- /*
- * If we get here, a FIFO underflow has occurred,
- * which means there is a bug somewhere.
- */
- FLAC__ASSERT(0);
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- }
- else if(encoded_bytes < *bytes)
- *bytes = encoded_bytes;
- memcpy(buffer, encoder->private_->verify.output.data, *bytes);
- encoder->private_->verify.output.data += *bytes;
- encoder->private_->verify.output.bytes -= *bytes;
- }
-
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
-}
-
-FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder *)client_data;
- unsigned channel;
- const unsigned channels = frame->header.channels;
- const unsigned blocksize = frame->header.blocksize;
- const unsigned bytes_per_block = sizeof(FLAC__int32) * blocksize;
-
- (void)decoder;
-
- for(channel = 0; channel < channels; channel++) {
- if(0 != memcmp(buffer[channel], encoder->private_->verify.input_fifo.data[channel], bytes_per_block)) {
- unsigned i, sample = 0;
- FLAC__int32 expect = 0, got = 0;
-
- for(i = 0; i < blocksize; i++) {
- if(buffer[channel][i] != encoder->private_->verify.input_fifo.data[channel][i]) {
- sample = i;
- expect = (FLAC__int32)encoder->private_->verify.input_fifo.data[channel][i];
- got = (FLAC__int32)buffer[channel][i];
- break;
- }
- }
- FLAC__ASSERT(i < blocksize);
- FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
- encoder->private_->verify.error_stats.absolute_sample = frame->header.number.sample_number + sample;
- encoder->private_->verify.error_stats.frame_number = (unsigned)(frame->header.number.sample_number / blocksize);
- encoder->private_->verify.error_stats.channel = channel;
- encoder->private_->verify.error_stats.sample = sample;
- encoder->private_->verify.error_stats.expected = expect;
- encoder->private_->verify.error_stats.got = got;
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
- }
- }
- /* dequeue the frame from the fifo */
- encoder->private_->verify.input_fifo.tail -= blocksize;
- FLAC__ASSERT(encoder->private_->verify.input_fifo.tail <= OVERREAD_);
- for(channel = 0; channel < channels; channel++)
- memmove(&encoder->private_->verify.input_fifo.data[channel][0], &encoder->private_->verify.input_fifo.data[channel][blocksize], encoder->private_->verify.input_fifo.tail * sizeof(encoder->private_->verify.input_fifo.data[0][0]));
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
-}
-
-void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- (void)decoder, (void)metadata, (void)client_data;
-}
-
-void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder*)client_data;
- (void)decoder, (void)status;
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
-}
-
-FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- (void)client_data;
-
- *bytes = fread(buffer, 1, *bytes, encoder->private_->file);
- if (*bytes == 0) {
- if (feof(encoder->private_->file))
- return FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM;
- else if (ferror(encoder->private_->file))
- return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
- }
- return FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE;
-}
-
-FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
-{
- (void)client_data;
-
- if(fseeko(encoder->private_->file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
- return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
- else
- return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
-}
-
-FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
-{
- off_t offset;
-
- (void)client_data;
-
- offset = ftello(encoder->private_->file);
-
- if(offset < 0) {
- return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
- }
- else {
- *absolute_byte_offset = (FLAC__uint64)offset;
- return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
- }
-}
-
-#ifdef FLAC__VALGRIND_TESTING
-static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
-{
- size_t ret = fwrite(ptr, size, nmemb, stream);
- if(!ferror(stream))
- fflush(stream);
- return ret;
-}
-#else
-#define local__fwrite fwrite
-#endif
-
-FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data)
-{
- (void)client_data, (void)current_frame;
-
- if(local__fwrite(buffer, sizeof(FLAC__byte), bytes, encoder->private_->file) == bytes) {
- FLAC__bool call_it = 0 != encoder->private_->progress_callback && (
-#if FLAC__HAS_OGG
- /* We would like to be able to use 'samples > 0' in the
- * clause here but currently because of the nature of our
- * Ogg writing implementation, 'samples' is always 0 (see
- * ogg_encoder_aspect.c). The downside is extra progress
- * callbacks.
- */
- encoder->private_->is_ogg? true :
-#endif
- samples > 0
- );
- if(call_it) {
- /* NOTE: We have to add +bytes, +samples, and +1 to the stats
- * because at this point in the callback chain, the stats
- * have not been updated. Only after we return and control
- * gets back to write_frame_() are the stats updated
- */
- encoder->private_->progress_callback(encoder, encoder->private_->bytes_written+bytes, encoder->private_->samples_written+samples, encoder->private_->frames_written+(samples?1:0), encoder->private_->total_frames_estimate, encoder->private_->client_data);
- }
- return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
- }
- else
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
-}
-
-/*
- * This will forcibly set stdout to binary mode (for OSes that require it)
- */
-FILE *get_binary_stdout_(void)
-{
- /* if something breaks here it is probably due to the presence or
- * absence of an underscore before the identifiers 'setmode',
- * 'fileno', and/or 'O_BINARY'; check your system header files.
- */
-#if defined _MSC_VER || defined __MINGW32__
- _setmode(_fileno(stdout), _O_BINARY);
-#elif defined __CYGWIN__
- /* almost certainly not needed for any modern Cygwin, but let's be safe... */
- setmode(_fileno(stdout), _O_BINARY);
-#elif defined __EMX__
- setmode(fileno(stdout), O_BINARY);
-#endif
-
- return stdout;
-}
diff --git a/src/lib/libflac/libFLAC/stream_encoder_framing.c b/src/lib/libflac/libFLAC/stream_encoder_framing.c
deleted file mode 100644
index 621b34c8228..00000000000
--- a/src/lib/libflac/libFLAC/stream_encoder_framing.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <string.h> /* for strlen() */
-#include "private/stream_encoder_framing.h"
-#include "private/crc.h"
-#include "FLAC/assert.h"
-
-#ifdef max
-#undef max
-#endif
-#define max(x,y) ((x)>(y)?(x):(y))
-
-static FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method);
-static FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order, const FLAC__bool is_extended);
-
-FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw)
-{
- unsigned i, j;
- const unsigned vendor_string_length = (unsigned)strlen(FLAC__VENDOR_STRING);
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->is_last, FLAC__STREAM_METADATA_IS_LAST_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->type, FLAC__STREAM_METADATA_TYPE_LEN))
- return false;
-
- /*
- * First, for VORBIS_COMMENTs, adjust the length to reflect our vendor string
- */
- i = metadata->length;
- if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
- FLAC__ASSERT(metadata->data.vorbis_comment.vendor_string.length == 0 || 0 != metadata->data.vorbis_comment.vendor_string.entry);
- i -= metadata->data.vorbis_comment.vendor_string.length;
- i += vendor_string_length;
- }
- FLAC__ASSERT(i < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, i, FLAC__STREAM_METADATA_LENGTH_LEN))
- return false;
-
- switch(metadata->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- FLAC__ASSERT(metadata->data.stream_info.min_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.max_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.min_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_framesize, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.max_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_framesize, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
- return false;
- FLAC__ASSERT(FLAC__format_sample_rate_is_valid(metadata->data.stream_info.sample_rate));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.sample_rate, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.channels > 0);
- FLAC__ASSERT(metadata->data.stream_info.channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.channels-1, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.bits_per_sample > 0);
- FLAC__ASSERT(metadata->data.stream_info.bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.bits_per_sample-1, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.stream_info.md5sum, 16))
- return false;
- break;
- case FLAC__METADATA_TYPE_PADDING:
- if(!FLAC__bitwriter_write_zeroes(bw, metadata->length * 8))
- return false;
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.data, metadata->length - (FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)))
- return false;
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- for(i = 0; i < metadata->data.seek_table.num_points; i++) {
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].sample_number, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].stream_offset, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.seek_table.points[i].frame_samples, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
- return false;
- }
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, vendor_string_length))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)FLAC__VENDOR_STRING, vendor_string_length))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.num_comments))
- return false;
- for(i = 0; i < metadata->data.vorbis_comment.num_comments; i++) {
- if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.comments[i].length))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.vorbis_comment.comments[i].entry, metadata->data.vorbis_comment.comments[i].length))
- return false;
- }
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.cue_sheet.media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.cue_sheet.lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.is_cd? 1 : 0, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
- return false;
- if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.num_tracks, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
- return false;
- for(i = 0; i < metadata->data.cue_sheet.num_tracks; i++) {
- const FLAC__StreamMetadata_CueSheet_Track *track = metadata->data.cue_sheet.tracks + i;
-
- if(!FLAC__bitwriter_write_raw_uint64(bw, track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->number, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
- return false;
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->type, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->pre_emphasis, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
- return false;
- if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->num_indices, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
- return false;
- for(j = 0; j < track->num_indices; j++) {
- const FLAC__StreamMetadata_CueSheet_Index *index = track->indices + j;
-
- if(!FLAC__bitwriter_write_raw_uint64(bw, index->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, index->number, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
- return false;
- if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
- return false;
- }
- }
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- {
- size_t len;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.type, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
- return false;
- len = strlen(metadata->data.picture.mime_type);
- if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.picture.mime_type, len))
- return false;
- len = strlen((const char *)metadata->data.picture.description);
- if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.description, len))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.data_length, FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.data, metadata->data.picture.data_length))
- return false;
- }
- break;
- default:
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.unknown.data, metadata->length))
- return false;
- break;
- }
-
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
- return true;
-}
-
-FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw)
-{
- unsigned u, blocksize_hint, sample_rate_hint;
- FLAC__byte crc;
-
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__FRAME_HEADER_SYNC, FLAC__FRAME_HEADER_SYNC_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_RESERVED_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, (header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER)? 0 : 1, FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN))
- return false;
-
- FLAC__ASSERT(header->blocksize > 0 && header->blocksize <= FLAC__MAX_BLOCK_SIZE);
- /* when this assertion holds true, any legal blocksize can be expressed in the frame header */
- FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535u);
- blocksize_hint = 0;
- switch(header->blocksize) {
- case 192: u = 1; break;
- case 576: u = 2; break;
- case 1152: u = 3; break;
- case 2304: u = 4; break;
- case 4608: u = 5; break;
- case 256: u = 8; break;
- case 512: u = 9; break;
- case 1024: u = 10; break;
- case 2048: u = 11; break;
- case 4096: u = 12; break;
- case 8192: u = 13; break;
- case 16384: u = 14; break;
- case 32768: u = 15; break;
- default:
- if(header->blocksize <= 0x100)
- blocksize_hint = u = 6;
- else
- blocksize_hint = u = 7;
- break;
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BLOCK_SIZE_LEN))
- return false;
-
- FLAC__ASSERT(FLAC__format_sample_rate_is_valid(header->sample_rate));
- sample_rate_hint = 0;
- switch(header->sample_rate) {
- case 88200: u = 1; break;
- case 176400: u = 2; break;
- case 192000: u = 3; break;
- case 8000: u = 4; break;
- case 16000: u = 5; break;
- case 22050: u = 6; break;
- case 24000: u = 7; break;
- case 32000: u = 8; break;
- case 44100: u = 9; break;
- case 48000: u = 10; break;
- case 96000: u = 11; break;
- default:
- if(header->sample_rate <= 255000 && header->sample_rate % 1000 == 0)
- sample_rate_hint = u = 12;
- else if(header->sample_rate % 10 == 0)
- sample_rate_hint = u = 14;
- else if(header->sample_rate <= 0xffff)
- sample_rate_hint = u = 13;
- else
- u = 0;
- break;
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_SAMPLE_RATE_LEN))
- return false;
-
- FLAC__ASSERT(header->channels > 0 && header->channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN) && header->channels <= FLAC__MAX_CHANNELS);
- switch(header->channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- u = header->channels - 1;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- FLAC__ASSERT(header->channels == 2);
- u = 8;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- FLAC__ASSERT(header->channels == 2);
- u = 9;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- FLAC__ASSERT(header->channels == 2);
- u = 10;
- break;
- default:
- FLAC__ASSERT(0);
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN))
- return false;
-
- FLAC__ASSERT(header->bits_per_sample > 0 && header->bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
- switch(header->bits_per_sample) {
- case 8 : u = 1; break;
- case 12: u = 2; break;
- case 16: u = 4; break;
- case 20: u = 5; break;
- case 24: u = 6; break;
- default: u = 0; break;
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_ZERO_PAD_LEN))
- return false;
-
- if(header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
- if(!FLAC__bitwriter_write_utf8_uint32(bw, header->number.frame_number))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_utf8_uint64(bw, header->number.sample_number))
- return false;
- }
-
- if(blocksize_hint)
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->blocksize-1, (blocksize_hint==6)? 8:16))
- return false;
-
- switch(sample_rate_hint) {
- case 12:
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 1000, 8))
- return false;
- break;
- case 13:
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate, 16))
- return false;
- break;
- case 14:
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 10, 16))
- return false;
- break;
- }
-
- /* write the CRC */
- if(!FLAC__bitwriter_get_write_crc8(bw, &crc))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, crc, FLAC__FRAME_HEADER_CRC_LEN))
- return false;
-
- return true;
-}
-
-FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- FLAC__bool ok;
-
- ok =
- FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN) &&
- (wasted_bits? FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1) : true) &&
- FLAC__bitwriter_write_raw_int32(bw, subframe->value, subframe_bps)
- ;
-
- return ok;
-}
-
-FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- unsigned i;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK | (subframe->order<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
- return false;
- if(wasted_bits)
- if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
- return false;
-
- for(i = 0; i < subframe->order; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->warmup[i], subframe_bps))
- return false;
-
- if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
- return false;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!add_residual_partitioned_rice_(
- bw,
- subframe->residual,
- residual_samples,
- subframe->order,
- subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
- subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
- subframe->entropy_coding_method.data.partitioned_rice.order,
- /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
- ))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- return true;
-}
-
-FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- unsigned i;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK | ((subframe->order-1)<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
- return false;
- if(wasted_bits)
- if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
- return false;
-
- for(i = 0; i < subframe->order; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->warmup[i], subframe_bps))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, subframe->qlp_coeff_precision-1, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->quantization_level, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
- return false;
- for(i = 0; i < subframe->order; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
- return false;
-
- if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
- return false;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!add_residual_partitioned_rice_(
- bw,
- subframe->residual,
- residual_samples,
- subframe->order,
- subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
- subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
- subframe->entropy_coding_method.data.partitioned_rice.order,
- /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
- ))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- return true;
-}
-
-FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, unsigned samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- unsigned i;
- const FLAC__int32 *signal = subframe->data;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
- return false;
- if(wasted_bits)
- if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
- return false;
-
- for(i = 0; i < samples; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, signal[i], subframe_bps))
- return false;
-
- return true;
-}
-
-FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method)
-{
- if(!FLAC__bitwriter_write_raw_uint32(bw, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
- return false;
- switch(method->type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!FLAC__bitwriter_write_raw_uint32(bw, method->data.partitioned_rice.order, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
- return true;
-}
-
-FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order, const FLAC__bool is_extended)
-{
- const unsigned plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
- const unsigned pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-
- if(partition_order == 0) {
- unsigned i;
-
- if(raw_bits[0] == 0) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[0], plen))
- return false;
- if(!FLAC__bitwriter_write_rice_signed_block(bw, residual, residual_samples, rice_parameters[0]))
- return false;
- }
- else {
- FLAC__ASSERT(rice_parameters[0] == 0);
- if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[0], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
- return false;
- for(i = 0; i < residual_samples; i++) {
- if(!FLAC__bitwriter_write_raw_int32(bw, residual[i], raw_bits[0]))
- return false;
- }
- }
- return true;
- }
- else {
- unsigned i, j, k = 0, k_last = 0;
- unsigned partition_samples;
- const unsigned default_partition_samples = (residual_samples+predictor_order) >> partition_order;
- for(i = 0; i < (1u<<partition_order); i++) {
- partition_samples = default_partition_samples;
- if(i == 0)
- partition_samples -= predictor_order;
- k += partition_samples;
- if(raw_bits[i] == 0) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[i], plen))
- return false;
- if(!FLAC__bitwriter_write_rice_signed_block(bw, residual+k_last, k-k_last, rice_parameters[i]))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[i], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
- return false;
- for(j = k_last; j < k; j++) {
- if(!FLAC__bitwriter_write_raw_int32(bw, residual[j], raw_bits[i]))
- return false;
- }
- }
- k_last = k;
- }
- return true;
- }
-}
diff --git a/src/lib/libflac/libFLAC/window.c b/src/lib/libflac/libFLAC/window.c
deleted file mode 100644
index b35c72efeac..00000000000
--- a/src/lib/libflac/libFLAC/window.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2006,2007 Josh Coalson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h>
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-#include "private/window.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-#ifndef M_PI
-/* math.h in VC++ doesn't seem to have this (how Microsoft is that?) */
-#define M_PI 3.14159265358979323846
-#endif
-
-
-void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- if (L & 1) {
- for (n = 0; n <= N/2; n++)
- window[n] = 2.0f * n / (float)N;
- for (; n <= N; n++)
- window[n] = 2.0f - 2.0f * n / (float)N;
- }
- else {
- for (n = 0; n <= L/2-1; n++)
- window[n] = 2.0f * n / (float)N;
- for (; n <= N; n++)
- window[n] = 2.0f - 2.0f * (N-n) / (float)N;
- }
-}
-
-void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.62f - 0.48f * fabs((float)n/(float)N+0.5f) + 0.38f * cos(2.0f * M_PI * ((float)n/(float)N+0.5f)));
-}
-
-void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.42f - 0.5f * cos(2.0f * M_PI * n / N) + 0.08f * cos(4.0f * M_PI * n / N));
-}
-
-/* 4-term -92dB side-lobe */
-void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++)
- window[n] = (FLAC__real)(0.35875f - 0.48829f * cos(2.0f * M_PI * n / N) + 0.14128f * cos(4.0f * M_PI * n / N) - 0.01168f * cos(6.0f * M_PI * n / N));
-}
-
-void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- const double N2 = (double)N / 2.;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++) {
- double k = ((double)n - N2) / N2;
- k = 1.0f - k * k;
- window[n] = (FLAC__real)(k * k);
- }
-}
-
-void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(1.0f - 1.93f * cos(2.0f * M_PI * n / N) + 1.29f * cos(4.0f * M_PI * n / N) - 0.388f * cos(6.0f * M_PI * n / N) + 0.0322f * cos(8.0f * M_PI * n / N));
-}
-
-void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev)
-{
- const FLAC__int32 N = L - 1;
- const double N2 = (double)N / 2.;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++) {
- const double k = ((double)n - N2) / (stddev * N2);
- window[n] = (FLAC__real)exp(-0.5f * k * k);
- }
-}
-
-void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.54f - 0.46f * cos(2.0f * M_PI * n / N));
-}
-
-void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(2.0f * M_PI * n / N));
-}
-
-void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.402f - 0.498f * cos(2.0f * M_PI * n / N) + 0.098f * cos(4.0f * M_PI * n / N) - 0.001f * cos(6.0f * M_PI * n / N));
-}
-
-void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.3635819f - 0.4891775f*cos(2.0f*M_PI*n/N) + 0.1365995f*cos(4.0f*M_PI*n/N) - 0.0106411f*cos(6.0f*M_PI*n/N));
-}
-
-void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L)
-{
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = 1.0f;
-}
-
-void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L)
-{
- FLAC__int32 n;
-
- if (L & 1) {
- for (n = 1; n <= L+1/2; n++)
- window[n-1] = 2.0f * n / ((float)L + 1.0f);
- for (; n <= L; n++)
- window[n-1] = - (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
- }
- else {
- for (n = 1; n <= L/2; n++)
- window[n-1] = 2.0f * n / (float)L;
- for (; n <= L; n++)
- window[n-1] = ((float)(2 * (L - n)) + 1.0f) / (float)L;
- }
-}
-
-void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p)
-{
- if (p <= 0.0)
- FLAC__window_rectangle(window, L);
- else if (p >= 1.0)
- FLAC__window_hann(window, L);
- else {
- const FLAC__int32 Np = (FLAC__int32)(p / 2.0f * L) - 1;
- FLAC__int32 n;
- /* start with rectangle... */
- FLAC__window_rectangle(window, L);
- /* ...replace ends with hann */
- if (Np > 0) {
- for (n = 0; n <= Np; n++) {
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * n / Np));
- window[L-Np-1+n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * (n+Np) / Np));
- }
- }
- }
-}
-
-void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- const double N2 = (double)N / 2.;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++) {
- const double k = ((double)n - N2) / N2;
- window[n] = (FLAC__real)(1.0f - k * k);
- }
-}
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */