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 #include "share/compat.h"
27 #include "foreign_metadata.h"
29 static FLAC__uint32 unpack32be_(const FLAC__byte *b)
31 return ((FLAC__uint32)b[0]<<24) + ((FLAC__uint32)b[1]<<16) + ((FLAC__uint32)b[2]<<8) + (FLAC__uint32)b[3];
34 static FLAC__uint32 unpack32le_(const FLAC__byte *b)
36 return (FLAC__uint32)b[0] + ((FLAC__uint32)b[1]<<8) + ((FLAC__uint32)b[2]<<16) + ((FLAC__uint32)b[3]<<24);
39 static FLAC__uint64 unpack64le_(const FLAC__byte *b)
41 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);
44 static FLAC__uint32 unpack32_(const FLAC__byte *b, foreign_block_type_t type)
46 if(type == FOREIGN_BLOCK_TYPE__AIFF)
47 return unpack32be_(b);
49 return unpack32le_(b);
52 int main(int argc, char *argv[])
56 foreign_metadata_t *fm;
57 const char *fn, *error;
62 fprintf(stderr, "usage: %s { file.wav | file.aif }\n", argv[0]);
66 if(0 == (f = fopen(fn, "rb")) || fread(buf, 1, 4, f) != 4) {
67 fprintf(stderr, "ERROR opening %s for reading\n", fn);
71 if(0 == (fm = flac__foreign_metadata_new(memcmp(buf, "RIFF", 4) && memcmp(buf, "RF64", 4)? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
72 fprintf(stderr, "ERROR: out of memory\n");
75 if(fm->type == FOREIGN_BLOCK_TYPE__AIFF) {
76 if(!flac__foreign_metadata_read_from_aiff(fm, fn, &error)) {
77 fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
82 if(!flac__foreign_metadata_read_from_wave(fm, fn, &error)) {
83 fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
87 if(0 == (f = fopen(fn, "rb"))) {
88 fprintf(stderr, "ERROR opening %s for reading\n", fn);
91 for(i = 0; i < fm->num_blocks; i++) {
92 if(fseeko(f, fm->blocks[i].offset, SEEK_SET) < 0) {
93 fprintf(stderr, "ERROR seeking in %s\n", fn);
96 if(fread(buf, 1, i==0?12:8, f) != (i==0?12:8)) {
97 fprintf(stderr, "ERROR reading %s\n", fn);
100 size = unpack32_((const FLAC__byte*)buf+4, fm->type);
101 printf("block:[%c%c%c%c] size=%08x=(%10u)", buf[0], buf[1], buf[2], buf[3], size, size);
103 printf(" type:[%c%c%c%c]", buf[8], buf[9], buf[10], buf[11]);
104 else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF && i == fm->audio_block)
105 printf(" offset size=%08x=(%10u)", fm->ssnd_offset_size, fm->ssnd_offset_size);
106 else if(fm->type == FOREIGN_BLOCK_TYPE__RIFF && i == 1 && !memcmp(buf, "ds64", 4)) {
107 if(fread(buf+8, 1, 36-8, f) != 36-8) {
108 fprintf(stderr, "ERROR reading %s\n", fn);
111 printf(" RIFF size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+8), unpack64le_(buf+8));
112 printf(" data size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+16), unpack64le_(buf+16));
113 printf(" sample count=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+24), unpack64le_(buf+24));
114 printf(" table size=%08x=(%u)", unpack32le_(buf+32), unpack32le_(buf+32));
119 flac__foreign_metadata_delete(fm);