[Ffmpeg-devel] Fix for overflow issue in mpegvideo.c

Martin Boehme boehme
Mon Jul 25 17:23:56 CEST 2005


the attached patch fixes an overflow issue I was getting for 
(overconservatively) large buffer sizes and large picture heights, i.e. 
buf_size=2.5 MB and end_y=1024. I'm aware this buf_size is _much_ too 
large (being lazy, I allocate enough buffer for a complete uncompressed 
image so I _know_ it will be enough)... OTOH, ffmpeg's (static) buffer 
size (256 KB) is already within an order of magnitude of the "critical" 

Comments, please...


Martin B?hme
Inst. f. Neuro- and Bioinformatics
Ratzeburger Allee 160, D-23538 Luebeck
Phone: +49 451 500 5514
Fax:   +49 451 500 5502
boehme at inb.uni-luebeck.de
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