* AIFF/AIFF-C demuxer
* Copyright (c) 2006 Patrick Guimond
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/intfloat_readwrite.h"
+#include "libavutil/mathematics.h"
#include "libavutil/dict.h"
#include "avformat.h"
+#include "internal.h"
#include "pcm.h"
#include "aiff.h"
+#include "isom.h"
#define AIFF 0
#define AIFF_C_VERSION1 0xA2805140
{
int size;
- if (pb->eof_reached)
+ if (url_feof(pb))
return AVERROR(EIO);
*tag = avio_rl32(pb);
static void get_meta(AVFormatContext *s, const char *key, int size)
{
uint8_t *str = av_malloc(size+1);
- int res;
- if (!str) {
- avio_skip(s->pb, size);
- return;
- }
-
- res = avio_read(s->pb, str, size);
- if (res < 0)
- return;
+ if (str) {
+ int res = avio_read(s->pb, str, size);
+ if (res < 0){
+ av_free(str);
+ return;
+ }
+ size += (size&1)-res;
+ str[res] = 0;
+ av_dict_set(&s->metadata, key, str, AV_METADATA_DONT_STRDUP_VAL);
+ }else
+ size+= size&1;
- str[res] = 0;
- av_dict_set(&s->metadata, key, str, AV_DICT_DONT_STRDUP_VAL);
+ avio_skip(s->pb, size);
}
/* Returns the number of sound data frames or negative on error */
static unsigned int get_aiff_header(AVIOContext *pb, AVCodecContext *codec,
int size, unsigned version)
{
- AVExtFloat ext;
+ int exp;
+ uint64_t val;
double sample_rate;
unsigned int num_frames;
num_frames = avio_rb32(pb);
codec->bits_per_coded_sample = avio_rb16(pb);
- avio_read(pb, (uint8_t*)&ext, sizeof(ext));/* Sample rate is in */
- sample_rate = av_ext2dbl(ext); /* 80 bits BE IEEE extended float */
+ exp = avio_rb16(pb);
+ val = avio_rb64(pb);
+ sample_rate = ldexp(val, exp - 16383 - 63);
codec->sample_rate = sample_rate;
size -= 18;
filesize -= 4;
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->extradata_size = size;
avio_read(pb, st->codec->extradata, size);
break;
+ case MKTAG('C','H','A','N'):
+ if (size < 12)
+ return AVERROR_INVALIDDATA;
+ ff_mov_read_chan(s, size, st->codec);
+ break;
default: /* Jump */
if (size & 1) /* Always even aligned */
size++;
got_sound:
/* Now positioned, get the sound data start and end */
- av_set_pts_info(st, 64, 1, st->codec->sample_rate);
+ avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
st->start_time = 0;
st->duration = st->codec->frame_size ?
st->nb_frames * st->codec->frame_size : st->nb_frames;