1 /* iffscan - Simple AIFF/RIFF chunk scanner
2 * Copyright (C) 2007,2008,2009 Josh Coalson
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #if defined _MSC_VER || defined __MINGW32__
27 #include <sys/types.h> /* for off_t */
28 #if _MSC_VER <= 1600 /* @@@ [2G limit] */
33 #include "foreign_metadata.h"
35 static FLAC__uint32 unpack32be_(const FLAC__byte *b)
37 return ((FLAC__uint32)b[0]<<24) + ((FLAC__uint32)b[1]<<16) + ((FLAC__uint32)b[2]<<8) + (FLAC__uint32)b[3];
40 static FLAC__uint32 unpack32le_(const FLAC__byte *b)
42 return (FLAC__uint32)b[0] + ((FLAC__uint32)b[1]<<8) + ((FLAC__uint32)b[2]<<16) + ((FLAC__uint32)b[3]<<24);
45 static FLAC__uint64 unpack64le_(const FLAC__byte *b)
47 return (FLAC__uint64)b[0] + ((FLAC__uint64)b[1]<<8) + ((FLAC__uint64)b[2]<<16) + ((FLAC__uint64)b[3]<<24) + ((FLAC__uint64)b[4]<<32) + ((FLAC__uint64)b[5]<<40) + ((FLAC__uint64)b[6]<<48) + ((FLAC__uint64)b[7]<<56);
50 static FLAC__uint32 unpack32_(const FLAC__byte *b, foreign_block_type_t type)
52 if(type == FOREIGN_BLOCK_TYPE__AIFF)
53 return unpack32be_(b);
55 return unpack32le_(b);
58 int main(int argc, char *argv[])
62 foreign_metadata_t *fm;
63 const char *fn, *error;
68 fprintf(stderr, "usage: %s { file.wav | file.aif }\n", argv[0]);
72 if(0 == (f = fopen(fn, "rb")) || fread(buf, 1, 4, f) != 4) {
73 fprintf(stderr, "ERROR opening %s for reading\n", fn);
77 if(0 == (fm = flac__foreign_metadata_new(memcmp(buf, "RIFF", 4) && memcmp(buf, "RF64", 4)? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
78 fprintf(stderr, "ERROR: out of memory\n");
81 if(fm->type == FOREIGN_BLOCK_TYPE__AIFF) {
82 if(!flac__foreign_metadata_read_from_aiff(fm, fn, &error)) {
83 fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
88 if(!flac__foreign_metadata_read_from_wave(fm, fn, &error)) {
89 fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
93 if(0 == (f = fopen(fn, "rb"))) {
94 fprintf(stderr, "ERROR opening %s for reading\n", fn);
97 for(i = 0; i < fm->num_blocks; i++) {
98 if(fseeko(f, fm->blocks[i].offset, SEEK_SET) < 0) {
99 fprintf(stderr, "ERROR seeking in %s\n", fn);
102 if(fread(buf, 1, i==0?12:8, f) != (i==0?12:8)) {
103 fprintf(stderr, "ERROR reading %s\n", fn);
106 size = unpack32_((const FLAC__byte*)buf+4, fm->type);
107 printf("block:[%c%c%c%c] size=%08x=(%10u)", buf[0], buf[1], buf[2], buf[3], size, size);
109 printf(" type:[%c%c%c%c]", buf[8], buf[9], buf[10], buf[11]);
110 else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF && i == fm->audio_block)
111 printf(" offset size=%08x=(%10u)", fm->ssnd_offset_size, fm->ssnd_offset_size);
112 else if(fm->type == FOREIGN_BLOCK_TYPE__RIFF && i == 1 && !memcmp(buf, "ds64", 4)) {
113 if(fread(buf+8, 1, 36-8, f) != 36-8) {
114 fprintf(stderr, "ERROR reading %s\n", fn);
117 printf(" RIFF size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+8), unpack64le_(buf+8));
118 printf(" data size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+16), unpack64le_(buf+16));
119 printf(" sample count=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+24), unpack64le_(buf+24));
120 printf(" table size=%08x=(%u)", unpack32le_(buf+32), unpack32le_(buf+32));
125 flac__foreign_metadata_delete(fm);