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avfilter/af_sidechaincompress: kill init function
Should make addition of process_command easier. Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@ -86,20 +86,6 @@ static const AVOption options[] = {
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#define sidechaincompress_options options
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#define sidechaincompress_options options
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AVFILTER_DEFINE_CLASS(sidechaincompress);
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AVFILTER_DEFINE_CLASS(sidechaincompress);
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static av_cold int init(AVFilterContext *ctx)
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{
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SidechainCompressContext *s = ctx->priv;
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s->thres = log(s->threshold);
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s->lin_knee_start = s->threshold / sqrt(s->knee);
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s->adj_knee_start = s->lin_knee_start * s->lin_knee_start;
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s->knee_start = log(s->lin_knee_start);
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s->knee_stop = log(s->threshold * sqrt(s->knee));
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s->compressed_knee_stop = (s->knee_stop - s->thres) / s->ratio + s->thres;
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return 0;
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}
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// A fake infinity value (because real infinity may break some hosts)
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// A fake infinity value (because real infinity may break some hosts)
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#define FAKE_INFINITY (65536.0 * 65536.0)
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#define FAKE_INFINITY (65536.0 * 65536.0)
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@ -138,6 +124,13 @@ static int compressor_config_output(AVFilterLink *outlink)
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AVFilterContext *ctx = outlink->src;
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AVFilterContext *ctx = outlink->src;
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SidechainCompressContext *s = ctx->priv;
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SidechainCompressContext *s = ctx->priv;
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s->thres = log(s->threshold);
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s->lin_knee_start = s->threshold / sqrt(s->knee);
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s->adj_knee_start = s->lin_knee_start * s->lin_knee_start;
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s->knee_start = log(s->lin_knee_start);
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s->knee_stop = log(s->threshold * sqrt(s->knee));
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s->compressed_knee_stop = (s->knee_stop - s->thres) / s->ratio + s->thres;
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s->attack_coeff = FFMIN(1., 1. / (s->attack * outlink->sample_rate / 4000.));
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s->attack_coeff = FFMIN(1., 1. / (s->attack * outlink->sample_rate / 4000.));
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s->release_coeff = FFMIN(1., 1. / (s->release * outlink->sample_rate / 4000.));
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s->release_coeff = FFMIN(1., 1. / (s->release * outlink->sample_rate / 4000.));
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@ -333,7 +326,6 @@ AVFilter ff_af_sidechaincompress = {
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.description = NULL_IF_CONFIG_SMALL("Sidechain compressor."),
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.description = NULL_IF_CONFIG_SMALL("Sidechain compressor."),
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.priv_size = sizeof(SidechainCompressContext),
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.priv_size = sizeof(SidechainCompressContext),
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.priv_class = &sidechaincompress_class,
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.priv_class = &sidechaincompress_class,
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.init = init,
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.query_formats = query_formats,
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.query_formats = query_formats,
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.inputs = sidechaincompress_inputs,
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.inputs = sidechaincompress_inputs,
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.outputs = sidechaincompress_outputs,
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.outputs = sidechaincompress_outputs,
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@ -427,7 +419,6 @@ AVFilter ff_af_acompressor = {
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.description = NULL_IF_CONFIG_SMALL("Audio compressor."),
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.description = NULL_IF_CONFIG_SMALL("Audio compressor."),
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.priv_size = sizeof(SidechainCompressContext),
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.priv_size = sizeof(SidechainCompressContext),
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.priv_class = &acompressor_class,
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.priv_class = &acompressor_class,
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.init = init,
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.query_formats = acompressor_query_formats,
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.query_formats = acompressor_query_formats,
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.inputs = acompressor_inputs,
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.inputs = acompressor_inputs,
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.outputs = acompressor_outputs,
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.outputs = acompressor_outputs,
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