treat frame_size > 1 as compressed audio
treat frame_size > 1 as compressed audio

git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@8461 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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