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Merge commit '23d0fdcf6f30843fc3f14084d80581f1ca10f1f3'

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* commit '23d0fdcf6f30843fc3f14084d80581f1ca10f1f3':
  Add support for multichannel ATRAC3+ streams.

Conflicts:
	libavformat/oma.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-30 02:15:36 +02:00
commit 7a28a9f68e
3 changed files with 27 additions and 3 deletions
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14
libavformat/oma.c
View File

@ -21,6 +21,7 @@
#include "internal.h"
#include "oma.h"
#include "libavcodec/avcodec.h"
#include "libavutil/channel_layout.h"
const uint16_t ff_oma_srate_tab[8] = { 320, 441, 480, 882, 960, 0 };
@ -32,3 +33,16 @@ const AVCodecTag ff_oma_codec_tags[] = {
{ 0 },
};
/** map ATRAC-X channel id to internal channel layout */
const uint64_t ff_oma_chid_to_native_layout[7] = {
AV_CH_LAYOUT_MONO,
AV_CH_LAYOUT_STEREO,
AV_CH_LAYOUT_SURROUND,
AV_CH_LAYOUT_4POINT0,
AV_CH_LAYOUT_5POINT1_BACK,
AV_CH_LAYOUT_6POINT1_BACK,
AV_CH_LAYOUT_7POINT1
};
/** map ATRAC-X channel id to total number of channels */
const int ff_oma_chid_to_num_channels[7] = {1, 2, 3, 4, 6, 7, 8};

3
libavformat/oma.h
View File

@ -41,4 +41,7 @@ extern const uint16_t ff_oma_srate_tab[8];
extern const AVCodecTag ff_oma_codec_tags[];
extern const uint64_t ff_oma_chid_to_native_layout[7];
extern const int ff_oma_chid_to_num_channels[7];
#endif /* AVFORMAT_OMA_H */

13
libavformat/omadec.c
View File

@ -1,7 +1,7 @@
/*
* Sony OpenMG (OMA) demuxer
*
* Copyright (c) 2008 Maxim Poliakovski
* Copyright (c) 2008, 2013 Maxim Poliakovski
* 2008 Benjamin Larsson
* 2011 David Goldwich
*
@ -285,7 +285,7 @@ static int decrypt_init(AVFormatContext *s, ID3v2ExtraMeta *em, uint8_t *header)
static int oma_read_header(AVFormatContext *s)
{
int ret, framesize, jsflag, samplerate;
uint32_t codec_params;
uint32_t codec_params, channel_id;
int16_t eid;
uint8_t buf[EA3_HEADER_SIZE];
uint8_t *edata;
@ -365,7 +365,14 @@ static int oma_read_header(AVFormatContext *s)
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
break;
case OMA_CODECID_ATRAC3P:
st->codec->channels = (codec_params >> 10) & 7;
channel_id = (codec_params >> 10) & 7;
if (!channel_id) {
av_log(s, AV_LOG_ERROR,
"Invalid ATRAC-X channel id: %d\n", channel_id);
return AVERROR_INVALIDDATA;
}
st->codec->channel_layout = ff_oma_chid_to_native_layout[channel_id - 1];
st->codec->channels = ff_oma_chid_to_num_channels[channel_id - 1];
framesize = ((codec_params & 0x3FF) * 8) + 8;
samplerate = ff_oma_srate_tab[(codec_params >> 13) & 7] * 100;
if (!samplerate) {