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libmp3lame: allow joint stereo to be disabled 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-03-30 22:15:50 +00:00
parent 4dd31f88f5
commit 1de11a7cab
1 changed files with 3 additions and 1 deletions
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4
libavcodec/libmp3lame.c
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@ -48,6 +48,7 @@ typedef struct LAMEContext {
int buffer_index;
int buffer_size;
int reservoir;
int joint_stereo;
float *samples_flt[2];
AudioFrameQueue afq;
AVFloatDSPContext fdsp;
@ -101,7 +102,7 @@ static av_cold int mp3lame_encode_init(AVCodecContext *avctx)
lame_set_num_channels(s->gfp, avctx->channels);
lame_set_mode(s->gfp, avctx->channels > 1 ? JOINT_STEREO : MONO);
lame_set_mode(s->gfp, avctx->channels > 1 ? s->joint_stereo ? JOINT_STEREO : STEREO : MONO);
/* sample rate */
lame_set_in_samplerate (s->gfp, avctx->sample_rate);
@ -263,6 +264,7 @@ static int mp3lame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
#define AE AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "reservoir", "Use bit reservoir.", OFFSET(reservoir), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AE },
{ "joint_stereo", "Use joint stereo.", OFFSET(joint_stereo), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AE },
{ NULL },
};