Changeset dae2ce36 in ffmpeg

Timestamp:

Feb 11, 2012, 6:06:50 PM (13 years ago)

Author:

Ronald S. Bultje <rsbultje@gmail.com>

Branches:

master

Children:

4fbccfab

Parents:

764852d6

git-author:

Ronald S. Bultje <rsbultje@gmail.com> (02/11/12 16:42:28)

git-committer:

Ronald S. Bultje <rsbultje@gmail.com> (02/11/12 18:06:50)

Message:

swscale: enforce a minimum filtersize.

At very small dimensions, this calculation could lead to zero-sized
filters, which leads to uninitialized output, zero-sized allocations,
loop overflows in SIMD that uses do{..}while(i++<filtersize); instead
of for(i=0;i<filtersize;i++){..} and several other similar failures.
Therefore, require a minimum filtersize of 1.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: ​libav-stable@libav.org

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