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avfilter/af_afreqshift: cache nb_coeffs value

This commit is contained in:
Paul B Mahol 2023-05-03 20:07:39 +02:00
parent 0e580806d8
commit d94c6df975
1 changed files with 8 additions and 6 deletions
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14
libavfilter/af_afreqshift.c
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@ -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; \