*/
#include "libavutil/channel_layout.h"
+#include "libavutil/ffmath.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
{
AVFilterContext *ctx = inlink->dst;
CrossfeedContext *s = ctx->priv;
- double A = exp(s->strength * -30 / 40 * log(10.));
+ double A = ff_exp10(s->strength * -30 / 40);
double w0 = 2 * M_PI * (1. - s->range) * 2100 / inlink->sample_rate;
double alpha;
if (av_frame_is_writable(in)) {
out = in;
} else {
- out = ff_get_audio_buffer(inlink, in->nb_samples);
+ out = ff_get_audio_buffer(outlink, in->nb_samples);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);