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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-12-31 21:12:42 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-01 21:11:47 +0100 |
| commit | 1b6695354d9e2da1967e51a76c5a87e1c78c7812 (patch) | |
| tree | e7dc742580630d06dffe802e1fa791e6273d2b02 | |
| parent | 5785e0e9c401e3bb2c5af5096209ba560c9a2c0e (diff) | |
| download | ffmpeg-1b6695354d9e2da1967e51a76c5a87e1c78c7812.tar.gz | |
avfilter/af_biquads: minor simplification by using ff_exp10()
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavfilter/af_biquads.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavfilter/af_biquads.c b/libavfilter/af_biquads.c index ae5e1c6ade..86cd10df3b 100644 --- a/libavfilter/af_biquads.c +++ b/libavfilter/af_biquads.c @@ -63,6 +63,7 @@ */ #include "libavutil/avassert.h" +#include "libavutil/ffmath.h" #include "libavutil/opt.h" #include "audio.h" #include "avfilter.h" @@ -245,7 +246,7 @@ static int config_filter(AVFilterLink *outlink, int reset) AVFilterContext *ctx = outlink->src; BiquadsContext *s = ctx->priv; AVFilterLink *inlink = ctx->inputs[0]; - double A = exp(s->gain / 40 * log(10.)); + double A = ff_exp10(s->gain / 40); double w0 = 2 * M_PI * s->frequency / inlink->sample_rate; double alpha, beta; |