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+/* metaflac - Command-line FLAC metadata editor
+ * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "usage.h"
+#include "FLAC/format.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+static void usage_header(FILE *out)
+{
+ fprintf(out, "==============================================================================\n");
+ fprintf(out, "metaflac - Command-line FLAC metadata editor version %s\n", FLAC__VERSION_STRING);
+ fprintf(out, "Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson\n");
+ fprintf(out, "\n");
+ fprintf(out, "This program is free software; you can redistribute it and/or\n");
+ fprintf(out, "modify it under the terms of the GNU General Public License\n");
+ fprintf(out, "as published by the Free Software Foundation; either version 2\n");
+ fprintf(out, "of the License, or (at your option) any later version.\n");
+ fprintf(out, "\n");
+ fprintf(out, "This program is distributed in the hope that it will be useful,\n");
+ fprintf(out, "but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
+ fprintf(out, "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n");
+ fprintf(out, "GNU General Public License for more details.\n");
+ fprintf(out, "\n");
+ fprintf(out, "You should have received a copy of the GNU General Public License\n");
+ fprintf(out, "along with this program; if not, write to the Free Software\n");
+ fprintf(out, "Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n");
+ fprintf(out, "==============================================================================\n");
+}
+
+static void usage_summary(FILE *out)
+{
+ fprintf(out, "Usage:\n");
+ fprintf(out, " metaflac [options] [operations] FLACfile [FLACfile ...]\n");
+ fprintf(out, "\n");
+ fprintf(out, "Use metaflac to list, add, remove, or edit metadata in one or more FLAC files.\n");
+ fprintf(out, "You may perform one major operation, or many shorthand operations at a time.\n");
+ fprintf(out, "\n");
+ fprintf(out, "Options:\n");
+ fprintf(out, "--preserve-modtime Preserve the original modification time in spite of edits\n");
+ fprintf(out, "--with-filename Prefix each output line with the FLAC file name\n");
+ fprintf(out, " (the default if more than one FLAC file is specified)\n");
+ fprintf(out, "--no-filename Do not prefix each output line with the FLAC file name\n");
+ fprintf(out, " (the default if only one FLAC file is specified)\n");
+ fprintf(out, "--no-utf8-convert Do not convert tags from UTF-8 to local charset,\n");
+ fprintf(out, " or vice versa. This is useful for scripts, and setting\n");
+ fprintf(out, " tags in situations where the locale is wrong.\n");
+ fprintf(out, "--dont-use-padding By default metaflac tries to use padding where possible\n");
+ fprintf(out, " to avoid rewriting the entire file if the metadata size\n");
+ fprintf(out, " changes. Use this option to tell metaflac to not take\n");
+ fprintf(out, " advantage of padding this way.\n");
+}
+
+int short_usage(const char *message, ...)
+{
+ va_list args;
+
+ if(message) {
+ va_start(args, message);
+
+ (void) vfprintf(stderr, message, args);
+
+ va_end(args);
+
+ }
+ usage_header(stderr);
+ fprintf(stderr, "\n");
+ fprintf(stderr, "This is the short help; for full help use 'metaflac --help'\n");
+ fprintf(stderr, "\n");
+ usage_summary(stderr);
+
+ return message? 1 : 0;
+}
+
+int long_usage(const char *message, ...)
+{
+ FILE *out = (message? stderr : stdout);
+ va_list args;
+
+ if(message) {
+ va_start(args, message);
+
+ (void) vfprintf(stderr, message, args);
+
+ va_end(args);
+
+ }
+ usage_header(out);
+ fprintf(out, "\n");
+ usage_summary(out);
+ fprintf(out, "\n");
+ fprintf(out, "Shorthand operations:\n");
+ fprintf(out, "--show-md5sum Show the MD5 signature from the STREAMINFO block.\n");
+ fprintf(out, "--show-min-blocksize Show the minimum block size from the STREAMINFO block.\n");
+ fprintf(out, "--show-max-blocksize Show the maximum block size from the STREAMINFO block.\n");
+ fprintf(out, "--show-min-framesize Show the minimum frame size from the STREAMINFO block.\n");
+ fprintf(out, "--show-max-framesize Show the maximum frame size from the STREAMINFO block.\n");
+ fprintf(out, "--show-sample-rate Show the sample rate from the STREAMINFO block.\n");
+ fprintf(out, "--show-channels Show the number of channels from the STREAMINFO block.\n");
+ fprintf(out, "--show-bps Show the # of bits per sample from the STREAMINFO block.\n");
+ fprintf(out, "--show-total-samples Show the total # of samples from the STREAMINFO block.\n");
+ fprintf(out, "\n");
+ fprintf(out, "--show-vendor-tag Show the vendor string from the VORBIS_COMMENT block.\n");
+ fprintf(out, "--show-tag=NAME Show all tags where the the field name matches 'NAME'.\n");
+ fprintf(out, "--remove-tag=NAME Remove all tags whose field name is 'NAME'.\n");
+ fprintf(out, "--remove-first-tag=NAME Remove first tag whose field name is 'NAME'.\n");
+ fprintf(out, "--remove-all-tags Remove all tags, leaving only the vendor string.\n");
+ fprintf(out, "--set-tag=FIELD Add a tag. The FIELD must comply with the Vorbis comment\n");
+ fprintf(out, " spec, of the form \"NAME=VALUE\". If there is currently\n");
+ fprintf(out, " no tag block, one will be created.\n");
+ fprintf(out, "--set-tag-from-file=FIELD Like --set-tag, except the VALUE is a filename\n");
+ fprintf(out, " whose contents will be read verbatim to set the tag value.\n");
+ fprintf(out, " Unless --no-utf8-convert is specified, the contents will\n");
+ fprintf(out, " be converted to UTF-8 from the local charset. This can\n");
+ fprintf(out, " be used to store a cuesheet in a tag (e.g.\n");
+ fprintf(out, " --set-tag-from-file=\"CUESHEET=image.cue\"). Do not try\n");
+ fprintf(out, " to store binary data in tag fields! Use APPLICATION\n");
+ fprintf(out, " blocks for that.\n");
+ fprintf(out, "--import-tags-from=FILE Import tags from a file. Use '-' for stdin. Each line\n");
+ fprintf(out, " should be of the form NAME=VALUE. Multi-line comments\n");
+ fprintf(out, " are currently not supported. Specify --remove-all-tags\n");
+ fprintf(out, " and/or --no-utf8-convert before --import-tags-from if\n");
+ fprintf(out, " necessary. If FILE is '-' (stdin), only one FLAC file\n");
+ fprintf(out, " may be specified.\n");
+ fprintf(out, "--export-tags-to=FILE Export tags to a file. Use '-' for stdout. Each line\n");
+ fprintf(out, " will be of the form NAME=VALUE. Specify\n");
+ fprintf(out, " --no-utf8-convert if necessary.\n");
+ fprintf(out, "--import-cuesheet-from=FILE Import a cuesheet from a file. Use '-' for stdin.\n");
+ fprintf(out, " Only one FLAC file may be specified. A seekpoint will be\n");
+ fprintf(out, " added for each index point in the cuesheet to the\n");
+ fprintf(out, " SEEKTABLE unless --no-cued-seekpoints is specified.\n");
+ fprintf(out, "--export-cuesheet-to=FILE Export CUESHEET block to a cuesheet file, suitable\n");
+ fprintf(out, " for use by CD authoring software. Use '-' for stdout.\n");
+ fprintf(out, " Only one FLAC file may be specified on the command line.\n");
+ fprintf(out, "--import-picture-from=FILENAME|SPECIFICATION Import a picture and store it in a\n");
+ fprintf(out, " PICTURE block. Either a filename for the picture file or\n");
+ fprintf(out, " a more complete specification form can be used. The\n");
+ fprintf(out, " SPECIFICATION is a string whose parts are separated by |\n");
+ fprintf(out, " characters. Some parts may be left empty to invoke\n");
+ fprintf(out, " default values. FILENAME is just shorthand for\n");
+ fprintf(out, " \"||||FILENAME\". The format of SPECIFICATION is:\n");
+ fprintf(out, " [TYPE]|[MIME-TYPE]|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE\n");
+ fprintf(out, " TYPE is optional; it is a number from one of:\n");
+ fprintf(out, " 0: Other\n");
+ fprintf(out, " 1: 32x32 pixels 'file icon' (PNG only)\n");
+ fprintf(out, " 2: Other file icon\n");
+ fprintf(out, " 3: Cover (front)\n");
+ fprintf(out, " 4: Cover (back)\n");
+ fprintf(out, " 5: Leaflet page\n");
+ fprintf(out, " 6: Media (e.g. label side of CD)\n");
+ fprintf(out, " 7: Lead artist/lead performer/soloist\n");
+ fprintf(out, " 8: Artist/performer\n");
+ fprintf(out, " 9: Conductor\n");
+ fprintf(out, " 10: Band/Orchestra\n");
+ fprintf(out, " 11: Composer\n");
+ fprintf(out, " 12: Lyricist/text writer\n");
+ fprintf(out, " 13: Recording Location\n");
+ fprintf(out, " 14: During recording\n");
+ fprintf(out, " 15: During performance\n");
+ fprintf(out, " 16: Movie/video screen capture\n");
+ fprintf(out, " 17: A bright coloured fish\n");
+ fprintf(out, " 18: Illustration\n");
+ fprintf(out, " 19: Band/artist logotype\n");
+ fprintf(out, " 20: Publisher/Studio logotype\n");
+ fprintf(out, " The default is 3 (front cover). There may only be one picture each\n");
+ fprintf(out, " of type 1 and 2 in a file.\n");
+ fprintf(out, " MIME-TYPE is optional; if left blank, it will be detected from the\n");
+ fprintf(out, " file. For best compatibility with players, use pictures with MIME\n");
+ fprintf(out, " type image/jpeg or image/png. The MIME type can also be --> to\n");
+ fprintf(out, " mean that FILE is actually a URL to an image, though this use is\n");
+ fprintf(out, " discouraged.\n");
+ fprintf(out, " DESCRIPTION is optional; the default is an empty string\n");
+ fprintf(out, " The next part specfies the resolution and color information. If\n");
+ fprintf(out, " the MIME-TYPE is image/jpeg, image/png, or image/gif, you can\n");
+ fprintf(out, " usually leave this empty and they can be detected from the file.\n");
+ fprintf(out, " Otherwise, you must specify the width in pixels, height in pixels,\n");
+ fprintf(out, " and color depth in bits-per-pixel. If the image has indexed colors\n");
+ fprintf(out, " you should also specify the number of colors used.\n");
+ fprintf(out, " FILE is the path to the picture file to be imported, or the URL if\n");
+ fprintf(out, " MIME type is -->\n");
+ fprintf(out, "--export-picture-to=FILE Export PICTURE block to a file. Use '-' for stdout.\n");
+ fprintf(out, " Only one FLAC file may be specified. The first PICTURE\n");
+ fprintf(out, " block will be exported unless --export-picture-to is\n");
+ fprintf(out, " preceded by a --block-number=# option to specify the exact\n");
+ fprintf(out, " metadata block to extract. Note that the block number is\n");
+ fprintf(out, " the one shown by --list.\n");
+ fprintf(out, "--add-replay-gain Calculates the title and album gains/peaks of the given\n");
+ fprintf(out, " FLAC files as if all the files were part of one album,\n");
+ fprintf(out, " then stores them in the VORBIS_COMMENT block. The tags\n");
+ fprintf(out, " are the same as those used by vorbisgain. Existing\n");
+ fprintf(out, " ReplayGain tags will be replaced. If only one FLAC file\n");
+ fprintf(out, " is given, the album and title gains will be the same.\n");
+ fprintf(out, " Since this operation requires two passes, it is always\n");
+ fprintf(out, " executed last, after all other operations have been\n");
+ fprintf(out, " completed and written to disk. All FLAC files specified\n");
+ fprintf(out, " must have the same resolution, sample rate, and number\n");
+ fprintf(out, " of channels. The sample rate must be one of 8, 11.025,\n");
+ fprintf(out, " 12, 16, 22.05, 24, 32, 44.1, or 48 kHz.\n");
+ fprintf(out, "--remove-replay-gain Removes the ReplayGain tags.\n");
+ fprintf(out, "--add-seekpoint={#|X|#x|#s} Add seek points to a SEEKTABLE block\n");
+ fprintf(out, " # : a specific sample number for a seek point\n");
+ fprintf(out, " X : a placeholder point (always goes at the end of the SEEKTABLE)\n");
+ fprintf(out, " #x : # evenly spaced seekpoints, the first being at sample 0\n");
+ fprintf(out, " #s : a seekpoint every # seconds; # does not have to be a whole number\n");
+ fprintf(out, " If no SEEKTABLE block exists, one will be created. If\n");
+ fprintf(out, " one already exists, points will be added to the existing\n");
+ fprintf(out, " table, and any duplicates will be turned into placeholder\n");
+ fprintf(out, " points. You may use many --add-seekpoint options; the\n");
+ fprintf(out, " resulting SEEKTABLE will be the unique-ified union of\n");
+ fprintf(out, " all such values. Example: --add-seekpoint=100x\n");
+ fprintf(out, " --add-seekpoint=3.5s will add 100 evenly spaced\n");
+ fprintf(out, " seekpoints and a seekpoint every 3.5 seconds.\n");
+ fprintf(out, "--add-padding=length Add a padding block of the given length (in bytes).\n");
+ fprintf(out, " The overall length of the new block will be 4 + length;\n");
+ fprintf(out, " the extra 4 bytes is for the metadata block header.\n");
+ fprintf(out, "\n");
+ fprintf(out, "Major operations:\n");
+ fprintf(out, "--version\n");
+ fprintf(out, " Show the metaflac version number.\n");
+ fprintf(out, "--list\n");
+ fprintf(out, " List the contents of one or more metadata blocks to stdout. By default,\n");
+ fprintf(out, " all metadata blocks are listed in text format. Use the following options\n");
+ fprintf(out, " to change this behavior:\n");
+ fprintf(out, "\n");
+ fprintf(out, " --block-number=#[,#[...]]\n");
+ fprintf(out, " An optional comma-separated list of block numbers to display. The first\n");
+ fprintf(out, " block, the STREAMINFO block, is block 0.\n");
+ fprintf(out, "\n");
+ fprintf(out, " --block-type=type[,type[...]]\n");
+ fprintf(out, " --except-block-type=type[,type[...]]\n");
+ fprintf(out, " An optional comma-separated list of block types to be included or ignored\n");
+ fprintf(out, " with this option. Use only one of --block-type or --except-block-type.\n");
+ fprintf(out, " The valid block types are: STREAMINFO, PADDING, APPLICATION, SEEKTABLE,\n");
+ fprintf(out, " VORBIS_COMMENT. You may narrow down the types of APPLICATION blocks\n");
+ fprintf(out, " displayed as follows:\n");
+ fprintf(out, " APPLICATION:abcd The APPLICATION block(s) whose textual repre-\n");
+ fprintf(out, " sentation of the 4-byte ID is \"abcd\"\n");
+ fprintf(out, " APPLICATION:0xXXXXXXXX The APPLICATION block(s) whose hexadecimal big-\n");
+ fprintf(out, " endian representation of the 4-byte ID is\n");
+ fprintf(out, " \"0xXXXXXXXX\". For the example \"abcd\" above the\n");
+ fprintf(out, " hexadecimal equivalalent is 0x61626364\n");
+ fprintf(out, "\n");
+ fprintf(out, " NOTE: if both --block-number and --[except-]block-type are specified,\n");
+ fprintf(out, " the result is the logical AND of both arguments.\n");
+ fprintf(out, "\n");
+#if 0
+ /*@@@ not implemented yet */
+ fprintf(out, " --data-format=binary|text\n");
+ fprintf(out, " By default a human-readable text representation of the data is displayed.\n");
+ fprintf(out, " You may specify --data-format=binary to dump the raw binary form of each\n");
+ fprintf(out, " metadata block. The output can be read in using a subsequent call to\n");
+ fprintf(out, " "metaflac --append --from-file=..."\n");
+ fprintf(out, "\n");
+#endif
+ fprintf(out, " --application-data-format=hexdump|text\n");
+ fprintf(out, " If the application block you are displaying contains binary data but your\n");
+ fprintf(out, " --data-format=text, you can display a hex dump of the application data\n");
+ fprintf(out, " contents instead using --application-data-format=hexdump\n");
+ fprintf(out, "\n");
+#if 0
+ /*@@@ not implemented yet */
+ fprintf(out, "--append\n");
+ fprintf(out, " Insert a metadata block from a file. The input file must be in the same\n");
+ fprintf(out, " format as generated with --list.\n");
+ fprintf(out, "\n");
+ fprintf(out, " --block-number=#\n");
+ fprintf(out, " Specify the insertion point (defaults to last block). The new block will\n");
+ fprintf(out, " be added after the given block number. This prevents the illegal insertion\n");
+ fprintf(out, " of a block before the first STREAMINFO block. You may not --append another\n");
+ fprintf(out, " STREAMINFO block.\n");
+ fprintf(out, "\n");
+ fprintf(out, " --from-file=filename\n");
+ fprintf(out, " Mandatory 'option' to specify the input file containing the block contents.\n");
+ fprintf(out, "\n");
+ fprintf(out, " --data-format=binary|text\n");
+ fprintf(out, " By default the block contents are assumed to be in binary format. You can\n");
+ fprintf(out, " override this by specifying --data-format=text\n");
+ fprintf(out, "\n");
+#endif
+ fprintf(out, "--remove\n");
+ fprintf(out, " Remove one or more metadata blocks from the metadata. Unless\n");
+ fprintf(out, " --dont-use-padding is specified, the blocks will be replaced with padding.\n");
+ fprintf(out, " You may not remove the STREAMINFO block.\n");
+ fprintf(out, "\n");
+ fprintf(out, " --block-number=#[,#[...]]\n");
+ fprintf(out, " --block-type=type[,type[...]]\n");
+ fprintf(out, " --except-block-type=type[,type[...]]\n");
+ fprintf(out, " See --list above for usage.\n");
+ fprintf(out, "\n");
+ fprintf(out, " NOTE: if both --block-number and --[except-]block-type are specified,\n");
+ fprintf(out, " the result is the logical AND of both arguments.\n");
+ fprintf(out, "\n");
+ fprintf(out, "--remove-all\n");
+ fprintf(out, " Remove all metadata blocks (except the STREAMINFO block) from the\n");
+ fprintf(out, " metadata. Unless --dont-use-padding is specified, the blocks will be\n");
+ fprintf(out, " replaced with padding.\n");
+ fprintf(out, "\n");
+ fprintf(out, "--merge-padding\n");
+ fprintf(out, " Merge adjacent PADDING blocks into single blocks.\n");
+ fprintf(out, "\n");
+ fprintf(out, "--sort-padding\n");
+ fprintf(out, " Move all PADDING blocks to the end of the metadata and merge them into a\n");
+ fprintf(out, " single block.\n");
+
+ return message? 1 : 0;
+}