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authorClément Bœsch <ubitux@gmail.com>2012-12-18 21:44:51 +0100
committerClément Bœsch <ubitux@gmail.com>2012-12-19 03:13:26 +0100
commit3bdd70fc661feaf915ae438e05f66cce75334673 (patch)
tree43fe01862cc4b47b4b008d75aae067d7e429d35a /libavcodec/cljr.c
parent63e1fc25884fe7cf3f66a8b99602ca98a47fb763 (diff)
downloadffmpeg-3bdd70fc661feaf915ae438e05f66cce75334673.tar.gz
lavfi/gradfun: reduce up limit for threshold.
This will prevent an overflow in the SSSE3 and MMX filter_line code: delta is expressed as an u16 being shifted by 2 to the left. If it overflows, having a strength not above 64 will make sure that m is set to 0 (making the m*m*delta >> 14 expression void). A value above 64 should not make any sense unless gradfun is used as a blur filter.
Diffstat (limited to 'libavcodec/cljr.c')
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