Mp3 file is not always have two channels
Avoid type cast issue - pass mpeg context address instead of context pointer in function args.
Merge pull request #5815 from kaienfr/test_master

Mp3 file is not always have two channels
fix pmp video quality issue.
We have no more decoding errors on imcomplete frame now.
Merge remote-tracking branch 'origin/master' into pmp_video_branch
close pmpdecoder after video playing.
Merge branch 'pmp_video_branch' into master_0.9.8