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/* iffscan - Simple AIFF/RIFF chunk scanner
* Copyright (C) 2007-2009 Josh Coalson
* Copyright (C) 2011-2013 Xiph.Org Foundation
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "share/compat.h"
#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__uint64 unpack64le_(const FLAC__byte *b)
{
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);
}
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[36];
foreign_metadata_t *fm;
const char *fn, *error;
size_t i;
FLAC__uint32 size;
#ifdef _WIN32
if (get_utf8_argv(&argc, &argv) != 0) {
fprintf(stderr, "ERROR: failed to convert command line parameters to UTF-8\n");
return 1;
}
#endif
if(argc != 2) {
flac_fprintf(stderr, "usage: %s { file.wav | file.aif }\n", argv[0]);
return 1;
}
fn = argv[1];
if(0 == (f = flac_fopen(fn, "rb")) || fread(buf, 1, 4, f) != 4) {
flac_fprintf(stderr, "ERROR opening %s for reading\n", fn);
return 1;
}
fclose(f);
if(0 == (fm = flac__foreign_metadata_new(memcmp(buf, "RIFF", 4) && memcmp(buf, "RF64", 4)? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
flac_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)) {
flac_fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
return 1;
}
}
else {
if(!flac__foreign_metadata_read_from_wave(fm, fn, &error)) {
flac_fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
return 1;
}
}
if(0 == (f = flac_fopen(fn, "rb"))) {
flac_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) {
flac_fprintf(stderr, "ERROR seeking in %s\n", fn);
return 1;
}
if(fread(buf, 1, i==0?12:8, f) != (i==0?12:8)) {
flac_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);
else if(fm->type == FOREIGN_BLOCK_TYPE__RIFF && i == 1 && !memcmp(buf, "ds64", 4)) {
if(fread(buf+8, 1, 36-8, f) != 36-8) {
flac_fprintf(stderr, "ERROR reading %s\n", fn);
return 1;
}
printf(" RIFF size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+8), unpack64le_(buf+8));
printf(" data size=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+16), unpack64le_(buf+16));
printf(" sample count=%016" PRIx64 "=(" PRIu64 ")", unpack64le_(buf+24), unpack64le_(buf+24));
printf(" table size=%08x=(%u)", unpack32le_(buf+32), unpack32le_(buf+32));
}
printf("\n");
}
fclose(f);
flac__foreign_metadata_delete(fm);
return 0;
}
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