Fix an overflow in the predictor. fixes issue 636 Patch by Jai.
Fix an overflow in the predictor.
fixes issue 636
Patch by Jai.


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@16007 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg