[MPlayer-dev-eng] why my mplayer-android porting have lower performance than many other players ?

[lean fu]

Hi list::

at first,i'm sorry to ask so preliminary problems here,but i really need
help from experts.

i tried to play 720p rmvb or mkv  videos on an android phone which with
 600Mhz arm processor,most of time ,
the picture nearly totally stop to refresh,and the strange thing is audio
can always keep smooth,i tested
" -framedrop,lowres=1:fast:skiploopfilter=all ..." in slave mode, but seems
nothing get better,and picture become worse.

I want mplayer only demux files and skip all decoding steps  of  P and B
frames until the next I  frame comes,another words,i want mplayer try it's
best to catch the audio.
i can accept picture loss,but can't accept picture seems completly halt
,how can i do this ?, any rely is appreciated, thanks.