virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity

mov: export audio service type as side data

Browse Source
This commit is contained in:
Anton Khirnov 2014-11-14 12:54:52 +01:00
parent 4227e4fe74
commit 3212578148
1 changed files with 20 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
libavformat/mov.c
View File

@ -620,12 +620,18 @@ static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
enum AVAudioServiceType *ast;
int ac3info, acmod, lfeon, bsmod;
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
sizeof(*ast));
if (!ast)
return AVERROR(ENOMEM);
ac3info = avio_rb24(pb);
bsmod = (ac3info >> 14) & 0x7;
acmod = (ac3info >> 11) & 0x7;
@ -634,9 +640,11 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
if (lfeon)
st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
st->codec->audio_service_type = bsmod;
*ast = bsmod;
if (st->codec->channels > 1 && bsmod == 0x7)
st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
*ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
st->codec->audio_service_type = *ast;
return 0;
}
@ -644,12 +652,18 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
enum AVAudioServiceType *ast;
int eac3info, acmod, lfeon, bsmod;
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
sizeof(*ast));
if (!ast)
return AVERROR(ENOMEM);
/* No need to parse fields for additional independent substreams and its
* associated dependent substreams since libavcodec's E-AC-3 decoder
* does not support them yet. */
@ -662,9 +676,11 @@ static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (lfeon)
st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
st->codec->audio_service_type = bsmod;
*ast = bsmod;
if (st->codec->channels > 1 && bsmod == 0x7)
st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
*ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
st->codec->audio_service_type = *ast;
return 0;
}