i've just compiled mplayer !
on ports comments they says:
On arm (e.g. Zaurus) you may encounter slow video output.
In this case you can disable the X.Org screen rotation in
/etc/X11/xorg.conf. Depending on the video you are playing
you may want to pass the -framedrop or the -hardframedrop
option to mplayer.
By default we disable the internal mp3lib (mpg123), because
it relies on the FPU. Instead of using mp3lib the mad flavor
is enabled by default. If you want to use libmad as an audio
decoder please pass the -ac mad option to mplayer.
it is working but i do encouter the "slow video output" problem i tried with a zaurus encoded video (starwars.avi) and i only got about 0.5 - 1 frame/s, with choppy sound...
i tried -framedrop and -hardframedrop but it was not better...
i tried -as mad too with no better results...
i tried -nosound then the video looked ok, with quite good frame/s although it looked like slow motion...
any success for someone?