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] */
37 #include "foreign_metadata.h"
39 static FLAC__uint32 unpack32be_(const FLAC__byte *b)
41 return ((FLAC__uint32)b[0]<<24) + ((FLAC__uint32)b[1]<<16) + ((FLAC__uint32)b[2]<<8) + (FLAC__uint32)b[3];
44 static FLAC__uint32 unpack32le_(const FLAC__byte *b)
46 return (FLAC__uint32)b[0] + ((FLAC__uint32)b[1]<<8) + ((FLAC__uint32)b[2]<<16) + ((FLAC__uint32)b[3]<<24);
49 static FLAC__uint64 unpack64le_(const FLAC__byte *b)
51 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);
54 static FLAC__uint32 unpack32_(const FLAC__byte *b, foreign_block_type_t type)
56 if(type == FOREIGN_BLOCK_TYPE__AIFF)
57 return unpack32be_(b);
59 return unpack32le_(b);
62 int main(int argc, char *argv[])
66 foreign_metadata_t *fm;
67 const char *fn, *error;
72 fprintf(stderr, "usage: %s { file.wav | file.aif }\n", argv[0]);
76 if(0 == (f = fopen(fn, "rb")) || fread(buf, 1, 4, f) != 4) {
77 fprintf(stderr, "ERROR opening %s for reading\n", fn);
81 if(0 == (fm = flac__foreign_metadata_new(memcmp(buf, "RIFF", 4) && memcmp(buf, "RF64", 4)? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
82 fprintf(stderr, "ERROR: out of memory\n");
85 if(fm->type == FOREIGN_BLOCK_TYPE__AIFF) {
86 if(!flac__foreign_metadata_read_from_aiff(fm, fn, &error)) {
87 fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
92 if(!flac__foreign_metadata_read_from_wave(fm, fn, &error)) {
93 fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
97 if(0 == (f = fopen(fn, "rb"))) {
98 fprintf(stderr, "ERROR opening %s for reading\n", fn);
101 for(i = 0; i < fm->num_blocks; i++) {
102 if(fseeko(f, fm->blocks[i].offset, SEEK_SET) < 0) {
103 fprintf(stderr, "ERROR seeking in %s\n", fn);
106 if(fread(buf, 1, i==0?12:8, f) != (i==0?12:8)) {
107 fprintf(stderr, "ERROR reading %s\n", fn);
110 size = unpack32_((const FLAC__byte*)buf+4, fm->type);
111 printf("block:[%c%c%c%c] size=%08x=(%10u)", buf[0], buf[1], buf[2], buf[3], size, size);
113 printf(" type:[%c%c%c%c]", buf[8], buf[9], buf[10], buf[11]);
114 else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF && i == fm->audio_block)
115 printf(" offset size=%08x=(%10u)", fm->ssnd_offset_size, fm->ssnd_offset_size);
116 else if(fm->type == FOREIGN_BLOCK_TYPE__RIFF && i == 1 && !memcmp(buf, "ds64", 4)) {
117 if(fread(buf+8, 1, 36-8, f) != 36-8) {
118 fprintf(stderr, "ERROR reading %s\n", fn);
121 printf(" RIFF size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+8), unpack64le_(buf+8));
122 printf(" data size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+16), unpack64le_(buf+16));
123 printf(" sample count=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+24), unpack64le_(buf+24));
124 printf(" table size=%08x=(%u)", unpack32le_(buf+32), unpack32le_(buf+32));
129 flac__foreign_metadata_delete(fm);