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Code Issues Releases Activity

iff demuxer: 16SV support

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-11-28 15:53:25 +00:00
parent 1b43fc127c
commit 01eed8c607
2 changed files with 9 additions and 1 deletions
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2
libavcodec/utils.c
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@ -2297,6 +2297,8 @@ void avcodec_default_free_buffers(AVCodecContext *avctx)
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
{
switch (codec_id) {
case AV_CODEC_ID_8SVX_EXP:
case AV_CODEC_ID_8SVX_FIB:
case AV_CODEC_ID_ADPCM_CT:
case AV_CODEC_ID_ADPCM_IMA_APC:
case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:

8
libavformat/iff.c
View File

@ -37,6 +37,7 @@
#include "internal.h"
#define ID_8SVX MKTAG('8','S','V','X')
#define ID_16SV MKTAG('1','6','S','V')
#define ID_VHDR MKTAG('V','H','D','R')
#define ID_ATAK MKTAG('A','T','A','K')
#define ID_RLSE MKTAG('R','L','S','E')
@ -123,6 +124,7 @@ static int iff_probe(AVProbeData *p)
if ( AV_RL32(d) == ID_FORM &&
(AV_RL32(d+8) == ID_8SVX ||
AV_RL32(d+8) == ID_16SV ||
AV_RL32(d+8) == ID_PBM ||
AV_RL32(d+8) == ID_ACBM ||
AV_RL32(d+8) == ID_DEEP ||
@ -301,6 +303,9 @@ static int iff_read_header(AVFormatContext *s)
case AVMEDIA_TYPE_AUDIO:
avpriv_set_pts_info(st, 32, 1, st->codec->sample_rate);
if (st->codec->codec_tag == ID_16SV)
st->codec->codec_id = AV_CODEC_ID_PCM_S16BE_PLANAR;
else {
switch (iff->svx8_compression) {
case COMP_NONE:
st->codec->codec_id = AV_CODEC_ID_PCM_S8_PLANAR;
@ -316,8 +321,9 @@ static int iff_read_header(AVFormatContext *s)
"Unknown SVX8 compression method '%d'\n", iff->svx8_compression);
return -1;
}
}
st->codec->bits_per_coded_sample = iff->svx8_compression == COMP_NONE ? 8 : 4;
st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate * st->codec->bits_per_coded_sample;
st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
break;