Replace buffer by AVPacket and avoid a memcpy() for video when the number of allocated slices matches the actual. Audio still does a copy (marked with FIXME in the code so this is not missed).
Replace buffer by AVPacket and avoid a memcpy() for video when the number
of allocated slices matches the actual.
Audio still does a copy (marked with FIXME in the code so this is not missed).


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@16402 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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