move sample size adjusting code after audio stsd v2 parsing to let v2 set correct channel number, fix Sony-hdv2.mov
move sample size adjusting code after audio stsd v2 parsing to let v2 set correct channel number, fix Sony-hdv2.mov

git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@6373 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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