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| author | Paul B Mahol <onemda@gmail.com> | 2023-05-03 20:07:39 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2023-05-03 20:13:26 +0200 |
| commit | d94c6df975e277b6f64db865074a4b64cbf0ae7a (patch) | |
| tree | a6d72dba8fd707eb90d25b50008255acbf47c63e /libavfilter/af_afreqshift.c | |
| parent | 0e580806d8f11ec494d74e32ff17d0068c50e1ff (diff) | |
| download | ffmpeg-d94c6df975e277b6f64db865074a4b64cbf0ae7a.tar.gz | |
avfilter/af_afreqshift: cache nb_coeffs value
Diffstat (limited to 'libavfilter/af_afreqshift.c')
| -rw-r--r-- | libavfilter/af_afreqshift.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/libavfilter/af_afreqshift.c b/libavfilter/af_afreqshift.c index 70bf8e419f..4df92a499a 100644 --- a/libavfilter/af_afreqshift.c +++ b/libavfilter/af_afreqshift.c @@ -66,6 +66,7 @@ static void pfilter_channel_## name(AVFilterContext *ctx, \ type *o1 = (type *)s->o1->extended_data[ch]; \ type *i2 = (type *)s->i2->extended_data[ch]; \ type *o2 = (type *)s->o2->extended_data[ch]; \ + const int nb_coeffs = s->nb_coeffs; \ const type *c = s->cc; \ const type level = s->level; \ type shift = s->shift * M_PI; \ @@ -76,7 +77,7 @@ static void pfilter_channel_## name(AVFilterContext *ctx, \ type xn1 = src[n], xn2 = src[n]; \ type I, Q; \ \ - for (int j = 0; j < s->nb_coeffs; j++) { \ + for (int j = 0; j < nb_coeffs; j++) { \ I = c[j] * (xn1 + o2[j]) - i2[j]; \ i2[j] = i1[j]; \ i1[j] = xn1; \ @@ -85,7 +86,7 @@ static void pfilter_channel_## name(AVFilterContext *ctx, \ xn1 = I; \ } \ \ - for (int j = s->nb_coeffs; j < s->nb_coeffs*2; j++) { \ + for (int j = nb_coeffs; j < nb_coeffs*2; j++) { \ Q = c[j] * (xn2 + o2[j]) - i2[j]; \ i2[j] = i1[j]; \ i1[j] = xn2; \ @@ -93,7 +94,7 @@ static void pfilter_channel_## name(AVFilterContext *ctx, \ o1[j] = Q; \ xn2 = Q; \ } \ - Q = o2[s->nb_coeffs * 2 - 1]; \ + Q = o2[nb_coeffs * 2 - 1]; \ \ dst[n] = (I * cos_theta - Q * sin_theta) * level; \ } \ @@ -115,6 +116,7 @@ static void ffilter_channel_## name(AVFilterContext *ctx, \ type *o1 = (type *)s->o1->extended_data[ch]; \ type *i2 = (type *)s->i2->extended_data[ch]; \ type *o2 = (type *)s->o2->extended_data[ch]; \ + const int nb_coeffs = s->nb_coeffs; \ const type *c = s->cc; \ const type level = s->level; \ type ts = 1. / in->sample_rate; \ @@ -125,7 +127,7 @@ static void ffilter_channel_## name(AVFilterContext *ctx, \ type xn1 = src[n], xn2 = src[n]; \ type I, Q, theta; \ \ - for (int j = 0; j < s->nb_coeffs; j++) { \ + for (int j = 0; j < nb_coeffs; j++) { \ I = c[j] * (xn1 + o2[j]) - i2[j]; \ i2[j] = i1[j]; \ i1[j] = xn1; \ @@ -134,7 +136,7 @@ static void ffilter_channel_## name(AVFilterContext *ctx, \ xn1 = I; \ } \ \ - for (int j = s->nb_coeffs; j < s->nb_coeffs*2; j++) { \ + for (int j = nb_coeffs; j < nb_coeffs*2; j++) { \ Q = c[j] * (xn2 + o2[j]) - i2[j]; \ i2[j] = i1[j]; \ i1[j] = xn2; \ @@ -142,7 +144,7 @@ static void ffilter_channel_## name(AVFilterContext *ctx, \ o1[j] = Q; \ xn2 = Q; \ } \ - Q = o2[s->nb_coeffs * 2 - 1]; \ + Q = o2[nb_coeffs * 2 - 1]; \ \ theta = 2. * M_PI * fmod(shift * (N + n) * ts, 1.); \ dst[n] = (I * cos(theta) - Q * sin(theta)) * level; \ |