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author | Paul B Mahol <onemda@gmail.com> | 2021-10-09 01:39:46 +0200 |
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committer | Paul B Mahol <onemda@gmail.com> | 2021-10-09 01:44:23 +0200 |
commit | d88d0370d51a1fe243837ee22ae4395c519c8c1e (patch) | |
tree | 8663065211437ef25c79b8868e446df13dc7f50f /libavfilter/af_axcorrelate.c | |
parent | eb22b8953c2d51c1677549200965e25ed79f796d (diff) |
avfilter/af_axcorrelate: fix integer overflow for huge segments
Diffstat (limited to 'libavfilter/af_axcorrelate.c')
-rw-r--r-- | libavfilter/af_axcorrelate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/af_axcorrelate.c b/libavfilter/af_axcorrelate.c index d9ef853b69..e0c37cb8ac 100644 --- a/libavfilter/af_axcorrelate.c +++ b/libavfilter/af_axcorrelate.c @@ -82,7 +82,7 @@ static float xcorrelate(const float *x, const float *y, float sumx, float sumy, } num /= size; - den = sqrtf((den0 * den1) / (size * size)); + den = sqrtf((den0 * den1) / size / size); return den <= 1e-6f ? 0.f : num / den; } @@ -149,7 +149,7 @@ static int xcorrelate_fast(AVFilterContext *ctx, AVFrame *out, int available) float num, den; num = num_sum[0] / size; - den = sqrtf((den_sumx[0] * den_sumy[0]) / (size * size)); + den = sqrtf((den_sumx[0] * den_sumy[0]) / size / size); dst[n] = den <= 1e-6f ? 0.f : num / den; |