biquad 123 libavfilter/af_biquads.c if (s->filter_type != biquad) { biquad 270 libavfilter/af_biquads.c case biquad: biquad 619 libavfilter/af_biquads.c DEFINE_BIQUAD_FILTER(biquad, "Apply a biquad IIR filter with the given coefficients."); biquad 79 libavfilter/allfilters.c REGISTER_FILTER(BIQUAD, biquad, af);