RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-22 15:23:11 +00:00
Code Issues Projects Releases Wiki Activity

avfilter: fix highshelf zdf coefficients

Browse Source
This commit is contained in:
Paul B Mahol 2023-08-07 11:55:13 +02:00
parent e35dfe864d
commit d295b6b693
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavfilter/adynamicequalizer_template.c
View File

@ -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];

2
libavfilter/af_biquads.c
View File

@ -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];