fix "uninitalized" warning, the alternative way.
fix "uninitalized" warning, the alternative way.

I hope this is valid C, flame me if not.
md5sum of h263.o doesnt change, so this doesnt cause a slowdown.


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@11689 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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