From 4a43e559e1b31072b384eb96fc0a8533f2b849ac Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Thu, 3 Dec 2015 10:05:21 +0100 Subject: avfilter/af_sidechaincompress: kill init function Should make addition of process_command easier. Signed-off-by: Paul B Mahol --- libavfilter/af_sidechaincompress.c | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) (limited to 'libavfilter/af_sidechaincompress.c') diff --git a/libavfilter/af_sidechaincompress.c b/libavfilter/af_sidechaincompress.c index 717ddcf..dac4605 100644 --- a/libavfilter/af_sidechaincompress.c +++ b/libavfilter/af_sidechaincompress.c @@ -86,20 +86,6 @@ static const AVOption options[] = { #define sidechaincompress_options options AVFILTER_DEFINE_CLASS(sidechaincompress); -static av_cold int init(AVFilterContext *ctx) -{ - SidechainCompressContext *s = ctx->priv; - - s->thres = log(s->threshold); - s->lin_knee_start = s->threshold / sqrt(s->knee); - s->adj_knee_start = s->lin_knee_start * s->lin_knee_start; - s->knee_start = log(s->lin_knee_start); - s->knee_stop = log(s->threshold * sqrt(s->knee)); - s->compressed_knee_stop = (s->knee_stop - s->thres) / s->ratio + s->thres; - - return 0; -} - // A fake infinity value (because real infinity may break some hosts) #define FAKE_INFINITY (65536.0 * 65536.0) @@ -138,6 +124,13 @@ static int compressor_config_output(AVFilterLink *outlink) AVFilterContext *ctx = outlink->src; SidechainCompressContext *s = ctx->priv; + s->thres = log(s->threshold); + s->lin_knee_start = s->threshold / sqrt(s->knee); + s->adj_knee_start = s->lin_knee_start * s->lin_knee_start; + s->knee_start = log(s->lin_knee_start); + s->knee_stop = log(s->threshold * sqrt(s->knee)); + s->compressed_knee_stop = (s->knee_stop - s->thres) / s->ratio + s->thres; + s->attack_coeff = FFMIN(1., 1. / (s->attack * outlink->sample_rate / 4000.)); s->release_coeff = FFMIN(1., 1. / (s->release * outlink->sample_rate / 4000.)); @@ -333,7 +326,6 @@ AVFilter ff_af_sidechaincompress = { .description = NULL_IF_CONFIG_SMALL("Sidechain compressor."), .priv_size = sizeof(SidechainCompressContext), .priv_class = &sidechaincompress_class, - .init = init, .query_formats = query_formats, .inputs = sidechaincompress_inputs, .outputs = sidechaincompress_outputs, @@ -427,7 +419,6 @@ AVFilter ff_af_acompressor = { .description = NULL_IF_CONFIG_SMALL("Audio compressor."), .priv_size = sizeof(SidechainCompressContext), .priv_class = &acompressor_class, - .init = init, .query_formats = acompressor_query_formats, .inputs = acompressor_inputs, .outputs = acompressor_outputs, -- cgit v1.1