some mplayer's tip

1. play short clip
when playing short video clip which has only one or some frames, picture flashed from screen   and can not be seen clearly. 
so add '-loop 0 ' option. such as playing one frame yuv file
 mplayer kiss.yuv  -demuxer   rawvideo  -rawvideo  w=768:h=576:format=uyvy:fps=15  -loop 0

2. play yuv raw video file
yuv file has no file header to discribe the video parameter. so you must supply the inforation to mplayer. such as width,height,yuv format, frame rate etc.
mplayer support some yuv file format:
420:  yv12 i420
422: yuv2 uyvy
example:
 mplayer kiss.yuv  -demuxer   rawvideo  -rawvideo  w=768:h=576:format=uyvy:fps=15  -loop 0