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authorJohn Brooks <john.brooks@bluecherry.net>2012-01-03 23:27:35 -0700
committerKostya Shishkov <kostya.shishkov@gmail.com>2012-01-04 10:32:23 +0100
commitaacf6b3a2fd8bc8603e3deaa6e612ea03cf08707 (patch)
tree4a0298252fe006b4b2442804a63f9dfdb9322b04 /libavcodec/x86/h264_deblock.asm
parent98f24ecd6cfc9c57a555aae6bfcd3d9a4ce9503d (diff)
downloadffmpeg-aacf6b3a2fd8bc8603e3deaa6e612ea03cf08707.tar.gz
rv34: fix invalid memory access for small video dimensions
For small video dimensions calculations of the upper bound for pixel access may result in negative value. Using an unsigned comparison works only if the greater operand is non-negative. This is fixed by doing edge emulation explicitly for such conditions. Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
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