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ffmpeg: support changing dither parameters for swr

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-11 13:46:31 +02:00
parent be4cde226a
commit 6c704d9c30
1 changed files with 6 additions and 0 deletions
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6
ffmpeg.c
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@ -276,6 +276,8 @@ typedef struct OutputStream {
AVFilterGraph *graph;
int64_t sws_flags;
int64_t swr_dither_method;
double swr_dither_scale;
AVDictionary *opts;
int is_past_recording_time;
int stream_copy;
@ -1199,6 +1201,8 @@ static void do_audio_out(AVFormatContext *s, OutputStream *ost,
enc->channel_layout, enc->sample_fmt, enc->sample_rate,
dec->channel_layout, dec->sample_fmt, dec->sample_rate,
0, NULL);
av_opt_set_int(ost->swr, "dither_method", ost->swr_dither_method,0);
av_opt_set_int(ost->swr, "dither_scale", ost->swr_dither_scale,0);
if (ost->audio_channels_mapped)
swr_set_channel_mapping(ost->swr, ost->audio_channels_map);
av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0);
@ -3965,6 +3969,8 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
av_opt_get_int (swr_opts, "dither_method", 0, &ost->swr_dither_method);
av_opt_get_double(swr_opts, "dither_scale" , 0, &ost->swr_dither_scale);
ost->source_index = source_index;
if (source_index >= 0) {