Merge commit '899ee03088d55152a48830df0899887f055da1de'

[ffmpeg] / libavfilter / af_biquads.c

diff --git a/libavfilter/af_biquads.c b/libavfilter/af_biquads.c
index 56d3035d77418383ed405da543db812012653143..86cd10df3b31e1e69e38d4f3c733f1023739ffa0 100644 (file)
--- 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;
 
@@ -383,7 +384,7 @@ static int config_filter(AVFilterLink *outlink, int reset)
         av_assert0(0);
     }
 
-    av_log(ctx, AV_LOG_VERBOSE, "a=%lf %lf %lf:b=%lf %lf %lf\n", s->a0, s->a1, s->a2, s->b0, s->b1, s->b2);
+    av_log(ctx, AV_LOG_VERBOSE, "a=%f %f %f:b=%f %f %f\n", s->a0, s->a1, s->a2, s->b0, s->b1, s->b2);
 
     s->a1 /= s->a0;
     s->a2 /= s->a0;