[FFmpeg-cvslog] libavcodec/webp: treat out-of-bound palette index as translucent black

[Reimar Döffinger]

On 19 September 2014 15:36:38 GMT+01:00, git at videolan.org wrote:
>ffmpeg | branch: master | Pascal Massimino <pascal.massimino at gmail.com>
>| Tue Sep 16 17:01:07 2014 +0200|
>[4fd21d58a72c38ab63c3a4483b420db260fa7b8d] | committer: Michael
>Niedermayer
>
>libavcodec/webp: treat out-of-bound palette index as translucent black
>
>See https://code.google.com/p/webp/issues/detail?id=206
>for a description of the problem/fix.

Sorry I got side-tracked and thus missed two specific points about the patch itself:
1) we should just create larger lookup tables and avoid the if since that code seems performance critical
2) at least for FF_ER_EXPLODE or so we should keep the check and error out, at least as long the official statement is that it will only happen for corrupted frames