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avfilter/af_aiir: do not ignore k option for audio filtering 

Previously it was used only for displaying frequency response.
This commit is contained in:
Paul B Mahol 2019-07-13 12:25:54 +02:00
parent 81d3d7dd44
commit 60e6db2f5b
1 changed files with 4 additions and 2 deletions
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6
libavfilter/af_aiir.c
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@ -135,6 +135,7 @@ static int iir_ch_## name(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
const int nb_b = s->iir[ch].nb_ab[1]; \
const double *a = s->iir[ch].ab[0]; \
const double *b = s->iir[ch].ab[1]; \
const double g = s->iir[ch].g; \
int *clippings = &s->iir[ch].clippings; \
type *dst = (type *)out->extended_data[ch]; \
int n; \
@ -153,7 +154,7 @@ static int iir_ch_## name(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
sample -= a[x] * oc[x]; \
\
oc[0] = sample; \
sample *= og; \
sample *= og * g; \
sample = sample * mix + ic[0] * (1. - mix); \
if (need_clipping && sample < min) { \
(*clippings)++; \
@ -186,6 +187,7 @@ static int iir_ch_serial_## name(AVFilterContext *ctx, void *arg, int ch, int nb
const type *src = (const type *)in->extended_data[ch]; \
type *dst = (type *)out->extended_data[ch]; \
IIRChannel *iir = &s->iir[ch]; \
const double g = iir->g; \
int *clippings = &iir->clippings; \
int nb_biquads = (FFMAX(iir->nb_ab[0], iir->nb_ab[1]) + 1) / 2; \
int n, i; \
@ -209,7 +211,7 @@ static int iir_ch_serial_## name(AVFilterContext *ctx, void *arg, int ch, int nb
i1 = src[n]; \
o2 = o1; \
o1 = o0; \
o0 *= og; \
o0 *= og * g; \
\
o0 = o0 * mix + (1. - mix) * sample; \
if (need_clipping && o0 < min) { \