[MPlayer-users] -oac copy results in out of sync audio with mencoder ?

[a a]

If I transcode
 the video but copy the audio the audio ends up totally out of sync. Is 
there an option i need to keep the audio in sync when transcoding the 
video



mencoder in.mkv -af volume=6:0 -mc 0 -oac copy -ovc x264 -x264encopts 
preset=slow:tune=film:crf=15:frameref=15:fast_pskip=0:threads=auto:bitrate=2000
 -nosub -vf scale=1280:-10 -o out.mkv