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| author | Paul B Mahol <onemda@gmail.com> | 2019-11-22 16:13:06 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2019-11-22 16:13:06 +0100 |
| commit | 2f5fb9e60fa62a6b1e9b7ab874d6814ab1fed6b6 (patch) | |
| tree | a395e1d0284b4b1821da443b8f619647537a32ca /libavfilter/af_aiir.c | |
| parent | e169d3756e921bcad65e64a7c9b3c3892fd8e190 (diff) | |
| download | ffmpeg-2f5fb9e60fa62a6b1e9b7ab874d6814ab1fed6b6.tar.gz | |
avfilter/af_aiir: make a/b coefficients array
Diffstat (limited to 'libavfilter/af_aiir.c')
| -rw-r--r-- | libavfilter/af_aiir.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/libavfilter/af_aiir.c b/libavfilter/af_aiir.c index d5dc6b8f18..1120afdd12 100644 --- a/libavfilter/af_aiir.c +++ b/libavfilter/af_aiir.c @@ -38,8 +38,8 @@ typedef struct Pair { } Pair; typedef struct BiquadContext { - double a0, a1, a2; - double b0, b1, b2; + double a[3]; + double b[3]; double i1, i2; double o1, o2; } BiquadContext; @@ -193,11 +193,11 @@ static int iir_ch_serial_## name(AVFilterContext *ctx, void *arg, int ch, int nb int n, i; \ \ for (i = 0; i < nb_biquads; i++) { \ - const double a1 = -iir->biquads[i].a1; \ - const double a2 = -iir->biquads[i].a2; \ - const double b0 = iir->biquads[i].b0; \ - const double b1 = iir->biquads[i].b1; \ - const double b2 = iir->biquads[i].b2; \ + const double a1 = -iir->biquads[i].a[1]; \ + const double a2 = -iir->biquads[i].a[2]; \ + const double b0 = iir->biquads[i].b[0]; \ + const double b1 = iir->biquads[i].b[1]; \ + const double b2 = iir->biquads[i].b[2]; \ double i1 = iir->biquads[i].i1; \ double i2 = iir->biquads[i].i2; \ double o1 = iir->biquads[i].o1; \ @@ -593,20 +593,20 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels) iir->ab[1][2 * nearest_zero.a] = iir->ab[1][2 * nearest_zero.a + 1] = NAN; iir->ab[1][2 * nearest_zero.b] = iir->ab[1][2 * nearest_zero.b + 1] = NAN; - iir->biquads[current_biquad].a0 = 1.0; - iir->biquads[current_biquad].a1 = a[2] / a[4]; - iir->biquads[current_biquad].a2 = a[0] / a[4]; - iir->biquads[current_biquad].b0 = (b[4] / a[4]) * (current_biquad ? 1.0 : iir->g); - iir->biquads[current_biquad].b1 = (b[2] / a[4]) * (current_biquad ? 1.0 : iir->g); - iir->biquads[current_biquad].b2 = (b[0] / a[4]) * (current_biquad ? 1.0 : iir->g); + iir->biquads[current_biquad].a[0] = 1.0; + iir->biquads[current_biquad].a[1] = a[2] / a[4]; + iir->biquads[current_biquad].a[2] = a[0] / a[4]; + iir->biquads[current_biquad].b[0] = (b[4] / a[4]) * (current_biquad ? 1.0 : iir->g); + iir->biquads[current_biquad].b[1] = (b[2] / a[4]) * (current_biquad ? 1.0 : iir->g); + iir->biquads[current_biquad].b[2] = (b[0] / a[4]) * (current_biquad ? 1.0 : iir->g); av_log(ctx, AV_LOG_VERBOSE, "a=%f %f %f:b=%f %f %f\n", - iir->biquads[current_biquad].a0, - iir->biquads[current_biquad].a1, - iir->biquads[current_biquad].a2, - iir->biquads[current_biquad].b0, - iir->biquads[current_biquad].b1, - iir->biquads[current_biquad].b2); + iir->biquads[current_biquad].a[0], + iir->biquads[current_biquad].a[1], + iir->biquads[current_biquad].a[2], + iir->biquads[current_biquad].b[0], + iir->biquads[current_biquad].b[1], + iir->biquads[current_biquad].b[2]); current_biquad++; } |