static double output_gain(double lin_slope, double ratio, double thres,
double knee, double knee_start, double knee_stop,
double compressed_knee_stop, int detection)
{
double slope = log(lin_slope);
double gain = 0.0;
double delta = 0.0;
if (detection)
slope *= 0.5;
if (IS_FAKE_INFINITY(ratio)) {
gain = thres;
delta = 0.0;
} else {
gain = (slope - thres) / ratio + thres;
delta = 1.0 / ratio;
}
if (knee > 1.0 && slope < knee_stop)
gain = hermite_interpolation(slope, knee_start, knee_stop,
knee_start, compressed_knee_stop,
1.0, delta);
return exp(gain - slope);
}
static double output_gain(double lin_slope, double ratio, double thres,
double knee, double knee_start, double knee_stop,
double lin_knee_stop, double range)
{
if (lin_slope < lin_knee_stop) {
double slope = log(lin_slope);
double tratio = ratio;
double gain = 0.;
double delta = 0.;
if (IS_FAKE_INFINITY(ratio))
tratio = 1000.;
gain = (slope - thres) * tratio + thres;
delta = tratio;
if (knee > 1. && slope > knee_start) {
gain = hermite_interpolation(slope, knee_start, knee_stop, ((knee_start - thres) * tratio + thres), knee_stop, delta, 1.);
}
return FFMAX(range, exp(gain - slope));
}
return 1.;
}