Split avpicture_fill() in two functions. This will be  useful for libavfilter and to simplify  avcodec_default_get_buffer().
Split avpicture_fill() in two functions. This will be 
useful for libavfilter and to simplify 
avcodec_default_get_buffer().


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@11942 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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