mirror of https://git.ffmpeg.org/ffmpeg.git
libmp3lame: allow joint stereo to be disabled
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@ -48,6 +48,7 @@ typedef struct LAMEContext {
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int buffer_index;
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int buffer_index;
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int buffer_size;
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int buffer_size;
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int reservoir;
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int reservoir;
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int joint_stereo;
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float *samples_flt[2];
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float *samples_flt[2];
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AudioFrameQueue afq;
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AudioFrameQueue afq;
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AVFloatDSPContext fdsp;
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AVFloatDSPContext fdsp;
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@ -101,7 +102,7 @@ static av_cold int mp3lame_encode_init(AVCodecContext *avctx)
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lame_set_num_channels(s->gfp, avctx->channels);
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lame_set_num_channels(s->gfp, avctx->channels);
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lame_set_mode(s->gfp, avctx->channels > 1 ? JOINT_STEREO : MONO);
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lame_set_mode(s->gfp, avctx->channels > 1 ? s->joint_stereo ? JOINT_STEREO : STEREO : MONO);
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/* sample rate */
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/* sample rate */
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lame_set_in_samplerate (s->gfp, avctx->sample_rate);
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lame_set_in_samplerate (s->gfp, avctx->sample_rate);
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@ -263,6 +264,7 @@ static int mp3lame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
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#define AE AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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#define AE AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption options[] = {
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static const AVOption options[] = {
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{ "reservoir", "Use bit reservoir.", OFFSET(reservoir), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AE },
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{ "reservoir", "Use bit reservoir.", OFFSET(reservoir), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AE },
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{ "joint_stereo", "Use joint stereo.", OFFSET(joint_stereo), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AE },
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{ NULL },
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{ NULL },
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};
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};
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