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avfilter/vf_signalstats: fix stack buffer overflow 

Fixes #8249
This commit is contained in:
Paul B Mahol 2019-10-11 13:32:24 +02:00
parent 0e68e8c93f
commit 71d9ae11a5
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vf_signalstats.c
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@ -491,7 +491,7 @@ static int compute_sat_hue_metrics8(AVFilterContext *ctx, void *arg, int jobnr,
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] = floor((180 / M_PI) * atan2f(yuvu-128, yuvv-128) + 180);
((int16_t*)p_hue)[i] = fmod(floor((180 / M_PI) * atan2f(yuvu-128, yuvv-128) + 180), 360.);
}
p_u += lsz_u;
p_v += lsz_v;
@ -530,7 +530,7 @@ static int compute_sat_hue_metrics16(AVFilterContext *ctx, void *arg, int jobnr,
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] = floor((180 / M_PI) * atan2f(yuvu-mid, yuvv-mid) + 180);
((int16_t*)p_hue)[i] = fmod(floor((180 / M_PI) * atan2f(yuvu-mid, yuvv-mid) + 180), 360.);
}
p_u += lsz_u;
p_v += lsz_v;