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| author | Paul B Mahol <onemda@gmail.com> | 2023-08-07 11:55:13 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2023-08-07 11:57:28 +0200 |
| commit | d295b6b6936c9c691a4871851fdaec04d407e54b (patch) | |
| tree | e9fe7653ecdc9d11dce21d823db90a025794f0be | |
| parent | e35dfe864d8fb1ee9e28684a5a93e4b75d0d8092 (diff) | |
| download | ffmpeg-d295b6b6936c9c691a4871851fdaec04d407e54b.tar.gz | |
avfilter: fix highshelf zdf coefficients
| -rw-r--r-- | libavfilter/adynamicequalizer_template.c | 2 | ||||
| -rw-r--r-- | libavfilter/af_biquads.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/adynamicequalizer_template.c b/libavfilter/adynamicequalizer_template.c index 94a27ea1cc..26fcebf8bc 100644 --- a/libavfilter/adynamicequalizer_template.c +++ b/libavfilter/adynamicequalizer_template.c @@ -238,7 +238,7 @@ static int fn(filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int n break; case 2: k = itqfactor; - g = fg / SQRT(gain); + g = fg * SQRT(gain); fa[0] = ONE / (ONE + g * (g + k)); fa[1] = g * fa[0]; diff --git a/libavfilter/af_biquads.c b/libavfilter/af_biquads.c index 2bcc6fd4a5..e465539411 100644 --- a/libavfilter/af_biquads.c +++ b/libavfilter/af_biquads.c @@ -722,7 +722,7 @@ static void convert_dir2zdf(BiquadsContext *s, int sample_rate) case treble: case highshelf: A = ff_exp10(s->gain / 40.); - g = tan(M_PI * s->frequency / sample_rate) / sqrt(A); + g = tan(M_PI * s->frequency / sample_rate) * sqrt(A); k = 1. / Q; a[0] = 1. / (1. + g * (g + k)); a[1] = g * a[0]; |