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| author | Neil Birkbeck <neil.birkbeck@gmail.com> | 2013-09-20 17:25:40 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-09-21 03:10:45 +0200 |
| commit | a11c16a0b0cadf3a14fa5e7329c2a144a2165bc6 (patch) | |
| tree | cf32d69ec0b78417ad57204e20d4f58c2d7e5deb /libavutil/des.c | |
| parent | 15672e832f47dd729f3214e5e1a5bc8e2d1e9cc1 (diff) | |
| download | ffmpeg-a11c16a0b0cadf3a14fa5e7329c2a144a2165bc6.tar.gz | |
avfilter/vf_psnr: Prevent integer overflow.
The 32-bit integer accumulator in MSE computation can overflow for 8-bit frame data.
(e.g., for 1080p white frame compared to a black frame can give sum of 255*255*1080*1920 > 2^32).
Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/des.c')
0 files changed, 0 insertions, 0 deletions