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flv: add support for G.711

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Damien Fetis 2012-06-28 16:28:56 +02:00 committed by Luca Barbato
parent 433492ac65
commit b92c7ee662
3 changed files with 18 additions and 0 deletions
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2
libavformat/flv.h
View File

@ -82,6 +82,8 @@ enum {
FLV_CODECID_NELLYMOSER_16KHZ_MONO = 4 << FLV_AUDIO_CODECID_OFFSET,
FLV_CODECID_NELLYMOSER_8KHZ_MONO = 5 << FLV_AUDIO_CODECID_OFFSET,
FLV_CODECID_NELLYMOSER = 6 << FLV_AUDIO_CODECID_OFFSET,
FLV_CODECID_PCM_ALAW = 7 << FLV_AUDIO_CODECID_OFFSET,
FLV_CODECID_PCM_MULAW = 8 << FLV_AUDIO_CODECID_OFFSET,
FLV_CODECID_AAC = 10<< FLV_AUDIO_CODECID_OFFSET,
FLV_CODECID_SPEEX = 11<< FLV_AUDIO_CODECID_OFFSET,
};

8
libavformat/flvdec.c
View File

@ -108,6 +108,14 @@ static void flv_set_audio_codec(AVFormatContext *s, AVStream *astream, AVCodecCo
case FLV_CODECID_NELLYMOSER:
acodec->codec_id = CODEC_ID_NELLYMOSER;
break;
case FLV_CODECID_PCM_MULAW:
acodec->sample_rate = 8000;
acodec->codec_id = CODEC_ID_PCM_MULAW;
break;
case FLV_CODECID_PCM_ALAW:
acodec->sample_rate = 8000;
acodec->codec_id = CODEC_ID_PCM_ALAW;
break;
default:
av_log(s, AV_LOG_INFO, "Unsupported audio codec (%x)\n", flv_codecid >> FLV_AUDIO_CODECID_OFFSET);
acodec->codec_tag = flv_codecid >> FLV_AUDIO_CODECID_OFFSET;

8
libavformat/flvenc.c
View File

@ -48,6 +48,8 @@ static const AVCodecTag flv_audio_codec_ids[] = {
{ CODEC_ID_ADPCM_SWF, FLV_CODECID_ADPCM >> FLV_AUDIO_CODECID_OFFSET },
{ CODEC_ID_AAC, FLV_CODECID_AAC >> FLV_AUDIO_CODECID_OFFSET },
{ CODEC_ID_NELLYMOSER, FLV_CODECID_NELLYMOSER >> FLV_AUDIO_CODECID_OFFSET },
{ CODEC_ID_PCM_MULAW, FLV_CODECID_PCM_MULAW >> FLV_AUDIO_CODECID_OFFSET },
{ CODEC_ID_PCM_ALAW, FLV_CODECID_PCM_ALAW >> FLV_AUDIO_CODECID_OFFSET },
{ CODEC_ID_SPEEX, FLV_CODECID_SPEEX >> FLV_AUDIO_CODECID_OFFSET },
{ CODEC_ID_NONE, 0 }
};
@ -136,6 +138,12 @@ static int get_audio_flags(AVFormatContext *s, AVCodecContext *enc)
else
flags |= FLV_CODECID_NELLYMOSER | FLV_SAMPLESSIZE_16BIT;
break;
case CODEC_ID_PCM_MULAW:
flags = FLV_CODECID_PCM_MULAW | FLV_SAMPLERATE_SPECIAL | FLV_SAMPLESSIZE_16BIT;
break;
case CODEC_ID_PCM_ALAW:
flags = FLV_CODECID_PCM_ALAW | FLV_SAMPLERATE_SPECIAL | FLV_SAMPLESSIZE_16BIT;
break;
case 0:
flags |= enc->codec_tag << 4;
break;