diff options
Diffstat (limited to '3rdparty/libflac/src/flac/iffscan.c')
-rw-r--r-- | 3rdparty/libflac/src/flac/iffscan.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/3rdparty/libflac/src/flac/iffscan.c b/3rdparty/libflac/src/flac/iffscan.c new file mode 100644 index 00000000000..d03b65bc8b9 --- /dev/null +++ b/3rdparty/libflac/src/flac/iffscan.c @@ -0,0 +1,112 @@ +/* iffscan - Simple AIFF/RIFF chunk scanner + * Copyright (C) 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 <stdio.h> +#include <stdlib.h> +#include <string.h> +#if defined _MSC_VER || defined __MINGW32__ +#include <sys/types.h> /* for off_t */ +#if _MSC_VER <= 1600 /* @@@ [2G limit] */ +#define fseeko fseek +#define ftello ftell +#endif +#endif +#include "foreign_metadata.h" + +static FLAC__uint32 unpack32be_(const FLAC__byte *b) +{ + return ((FLAC__uint32)b[0]<<24) + ((FLAC__uint32)b[1]<<16) + ((FLAC__uint32)b[2]<<8) + (FLAC__uint32)b[3]; +} + +static FLAC__uint32 unpack32le_(const FLAC__byte *b) +{ + return (FLAC__uint32)b[0] + ((FLAC__uint32)b[1]<<8) + ((FLAC__uint32)b[2]<<16) + ((FLAC__uint32)b[3]<<24); +} + +static FLAC__uint32 unpack32_(const FLAC__byte *b, foreign_block_type_t type) +{ + if(type == FOREIGN_BLOCK_TYPE__AIFF) + return unpack32be_(b); + else + return unpack32le_(b); +} + +int main(int argc, char *argv[]) +{ + FILE *f; + char buf[12]; + foreign_metadata_t *fm; + const char *fn, *error; + size_t i; + FLAC__uint32 size; + + if(argc != 2) { + fprintf(stderr, "usage: %s { file.wav | file.aif }\n", argv[0]); + return 1; + } + fn = argv[1]; + if(0 == (f = fopen(fn, "rb")) || fread(buf, 1, 4, f) != 4) { + fprintf(stderr, "ERROR opening %s for reading\n", fn); + return 1; + } + fclose(f); + if(0 == (fm = flac__foreign_metadata_new(memcmp(buf, "RIFF", 4)? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) { + fprintf(stderr, "ERROR: out of memory\n"); + return 1; + } + if(fm->type == FOREIGN_BLOCK_TYPE__AIFF) { + if(!flac__foreign_metadata_read_from_aiff(fm, fn, &error)) { + fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error); + return 1; + } + } + else { + if(!flac__foreign_metadata_read_from_wave(fm, fn, &error)) { + fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error); + return 1; + } + } + if(0 == (f = fopen(fn, "rb"))) { + fprintf(stderr, "ERROR opening %s for reading\n", fn); + return 1; + } + for(i = 0; i < fm->num_blocks; i++) { + if(fseeko(f, fm->blocks[i].offset, SEEK_SET) < 0) { + fprintf(stderr, "ERROR seeking in %s\n", fn); + return 1; + } + if(fread(buf, 1, 12, f) != 12) { + fprintf(stderr, "ERROR reading %s\n", fn); + return 1; + } + size = unpack32_((const FLAC__byte*)buf+4, fm->type); + printf("block:[%c%c%c%c] size=%08x=(%10u)", buf[0], buf[1], buf[2], buf[3], size, size); + if(i == 0) + printf(" type:[%c%c%c%c]", buf[8], buf[9], buf[10], buf[11]); + else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF && i == fm->audio_block) + printf(" offset size=%08x=(%10u)", fm->ssnd_offset_size, fm->ssnd_offset_size); + printf("\n"); + } + fclose(f); + flac__foreign_metadata_delete(fm); + return 0; +} |