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avfilter/vf_signalstats: avoid doubles in calculations

This commit is contained in:
Paul B Mahol 2021-08-20 07:34:17 +02:00
parent ed6ea4f9ca
commit 7871b3ca5e
1 changed files with 4 additions and 4 deletions
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8
libavfilter/vf_signalstats.c
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@ -485,8 +485,8 @@ static int compute_sat_hue_metrics8(AVFilterContext *ctx, void *arg, int jobnr,
for (i = 0; i < s->chromaw; i++) {
const int yuvu = p_u[i];
const int yuvv = p_v[i];
p_sat[i] = hypot(yuvu - 128, yuvv - 128); // int or round?
((int16_t*)p_hue)[i] = fmod(floor((180 / M_PI) * atan2f(yuvu-128, yuvv-128) + 180), 360.);
p_sat[i] = hypotf(yuvu - 128, yuvv - 128); // int or round?
((int16_t*)p_hue)[i] = fmodf(floorf((180.f / M_PI) * atan2f(yuvu-128, yuvv-128) + 180.f), 360.f);
}
p_u += lsz_u;
p_v += lsz_v;
@ -524,8 +524,8 @@ static int compute_sat_hue_metrics16(AVFilterContext *ctx, void *arg, int jobnr,
for (i = 0; i < s->chromaw; i++) {
const int yuvu = p_u[i];
const int yuvv = p_v[i];
p_sat[i] = hypot(yuvu - mid, yuvv - mid); // int or round?
((int16_t*)p_hue)[i] = fmod(floor((180 / M_PI) * atan2f(yuvu-mid, yuvv-mid) + 180), 360.);
p_sat[i] = hypotf(yuvu - mid, yuvv - mid); // int or round?
((int16_t*)p_hue)[i] = fmodf(floorf((180.f / M_PI) * atan2f(yuvu-mid, yuvv-mid) + 180.f), 360.f);
}
p_u += lsz_u;
p_v += lsz_v;