$ mencoder 10284774.flv -o reverse.avi -ovc x264 -x264encopts pass=1:turbo:bitrate=1200:bframes=1:me=umh:partitions=all:trellis=1:qp_step=4:qcomp=0.7:direct_pred=auto:keyint=300:threads=auto -vf harddup -oac faac -faacopts br=128:mpeg=4:object=2 -channels 2 -srate 44100

$ mplayer reverse.avi -dumpaudio -dumpfile reverse.aac$ mplayer reverse.avi -dumpvideo -dumpfile reverse.h264

$ mp4creator -create=reverse.aac reverse.mp4$ mp4creator -create=reverse.h264 -rate=29.970 reverse.mp4$ mp4creator -hint=1 reverse.mp4$ mp4creator -hint=2 reverse.mp4$ mp4creator -optimize reverse.mp4$ mp4creator -list reverse.mp4