avcodec/msmpeg4dec: Skip frame if its smaller than 1/8 of the minimal size
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 29 Nov 2018 01:32:10 +0000 (02:32 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 14 Jan 2019 23:57:27 +0000 (00:57 +0100)
commitaa5190d54adb21caac60e3306e4691c728e67208
tree247eee1c160b43755f01abf4ba8c9d19e1c70268
parentf3400e731a6663c485064fcf40bfe16fa5c97921
avcodec/msmpeg4dec: Skip frame if its smaller than 1/8 of the minimal size

Frames that small are not valid and of limited use for error concealment, while
being very computationally intensive to process.

Fixes: Timeout
Fixes: 11318/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSMPEG4V1_fuzzer-5710884555456512

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 09ec182864d41c990bc18f620eabb77444aeff57)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/msmpeg4dec.c