[FFmpeg-devel] [PATCH] avcodec/dvdsubdec: Check for fully transparent rectangles earlier

[Michael Niedermayer]

On Sun, Jul 01, 2018 at 04:08:38AM +0200, Michael Niedermayer wrote:
> Testcase with large transparent rectangles changes from 67 sec to 3 sec decode time
> 
> Fixes: Timeout
> Fixes: 8728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DVDSUB_fuzzer-5190088756559872
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/dvdsubdec.c | 21 ++++++++++++++-------
>  1 file changed, 14 insertions(+), 7 deletions(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Complexity theory is the science of finding the exact solution to an
approximation. Benchmarking OTOH is finding an approximation of the exact
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