#include "audio.h"
#include "avfilter.h"
#include "formats.h"
+#include "hermite.h"
#include "internal.h"
typedef struct SidechainCompressContext {
return 0;
}
-static inline float hermite_interpolation(float x, float x0, float x1,
- float p0, float p1,
- float m0, float m1)
-{
- float width = x1 - x0;
- float t = (x - x0) / width;
- float t2, t3;
- float ct0, ct1, ct2, ct3;
-
- m0 *= width;
- m1 *= width;
-
- t2 = t*t;
- t3 = t2*t;
- ct0 = p0;
- ct1 = m0;
-
- ct2 = -3 * p0 - 2 * m0 + 3 * p1 - m1;
- ct3 = 2 * p0 + m0 - 2 * p1 + m1;
-
- return ct3 * t3 + ct2 * t2 + ct1 * t + ct0;
-}
-
// A fake infinity value (because real infinity may break some hosts)
#define FAKE_INFINITY (65536.0 * 65536.0)
outlink->channel_layout = ctx->inputs[0]->channel_layout;
outlink->channels = ctx->inputs[0]->channels;
- s->attack_coeff = FFMIN(1.f, 1.f / (s->attack * outlink->sample_rate / 4000.f));
- s->release_coeff = FFMIN(1.f, 1.f / (s->release * outlink->sample_rate / 4000.f));
+ s->attack_coeff = FFMIN(1., 1. / (s->attack * outlink->sample_rate / 4000.));
+ s->release_coeff = FFMIN(1., 1. / (s->release * outlink->sample_rate / 4000.));
return 0;
}