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avformat/mpegts: Add support for Opus in MPEG-TS

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Kieran Kunhya 2014-10-18 00:25:16 +01:00 committed by Michael Niedermayer
parent 74141f693d
commit 61e42c1124
2 changed files with 54 additions and 2 deletions
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54
libavformat/mpegts.c
View File

@ -29,6 +29,7 @@
#include "libavutil/avassert.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/opus.h"
#include "avformat.h"
#include "mpegts.h"
#include "internal.h"
@ -701,6 +702,7 @@ static const StreamType REGD_types[] = {
{ MKTAG('H', 'E', 'V', 'C'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_HEVC },
{ MKTAG('K', 'L', 'V', 'A'), AVMEDIA_TYPE_DATA, AV_CODEC_ID_SMPTE_KLV },
{ MKTAG('V', 'C', '-', '1'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_VC1 },
{ MKTAG('O', 'p', 'u', 's'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_OPUS },
{ 0 },
};
@ -1499,13 +1501,28 @@ static void m4sl_cb(MpegTSFilter *filter, const uint8_t *section,
av_free(mp4_descr[i].dec_config_descr);
}
static const uint8_t opus_coupled_stream_cnt[9] = {
1, 0, 1, 1, 2, 2, 2, 3, 3
};
static const uint8_t opus_channel_map[8][8] = {
{ 0 },
{ 0,1 },
{ 0,2,1 },
{ 0,1,2,3 },
{ 0,4,1,2,3 },
{ 0,4,1,2,3,5 },
{ 0,4,1,2,3,5,6 },
{ 0,6,1,2,3,4,5,7 },
};
int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type,
const uint8_t **pp, const uint8_t *desc_list_end,
Mp4Descr *mp4_descr, int mp4_descr_count, int pid,
MpegTSContext *ts)
{
const uint8_t *desc_end;
int desc_len, desc_tag, desc_es_id;
int desc_len, desc_tag, desc_es_id, ext_desc_tag, channels, channel_config_code;
char language[252];
int i;
@ -1710,6 +1727,41 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
mpegts_find_stream_type(st, st->codec->codec_tag, METADATA_types);
}
break;
case 0x7f: /* DVB extension descriptor */
ext_desc_tag = get8(pp, desc_end);
if (ext_desc_tag < 0)
return AVERROR_INVALIDDATA;
if (st->codec->codec_id == AV_CODEC_ID_OPUS &&
ext_desc_tag == 0x80) { /* User defined (provisional Opus) */
if (!st->codec->extradata) {
st->codec->extradata = av_mallocz(sizeof(opus_default_extradata) +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
st->codec->extradata_size = sizeof(opus_default_extradata);
memcpy(st->codec->extradata, opus_default_extradata, sizeof(opus_default_extradata));
channel_config_code = get8(pp, desc_end);
if (channel_config_code < 0)
return AVERROR_INVALIDDATA;
if (channel_config_code <= 0x8) {
st->codec->extradata[9] = channels = channel_config_code ? channel_config_code : 2;
st->codec->extradata[18] = channels > 2;
st->codec->extradata[19] = channel_config_code;
if (channel_config_code == 0) { /* Dual Mono */
st->codec->extradata[18] = 255; /* Mapping */
st->codec->extradata[19] = 2; /* Stream Count */
}
st->codec->extradata[20] = opus_coupled_stream_cnt[channel_config_code];
memcpy(&st->codec->extradata[21], opus_channel_map[channels - 1], channels);
} else {
avpriv_request_sample(fc, "Opus in MPEG-TS - channel_config_code > 0x8");
}
st->need_parsing = AVSTREAM_PARSE_FULL;
}
}
break;
default:
break;
}

2
libavformat/version.h
View File

@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFORMAT_VERSION_MAJOR 56
#define LIBAVFORMAT_VERSION_MINOR 10
#define LIBAVFORMAT_VERSION_MINOR 11
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \