[MPlayer-advusers] enable vo at compilation message and automagic , scale filter retry.

[tempn at twmi.rr.com]

e.g.  when luser wants to use -vo x11 and he asks why he
gets message like 
Error opening/initializing the selected video_out (-vo) device.
can it also say 'vo x11 not enabled, please enable at compilation'?
or 'vo asdf not availible vo, maybe you made a typo?'
because currently it does not say if luser has vo or not.

also...

Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Also try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.

FATAL: Could not initialize video filters (-vf) or video output (-vo).

can mplayer be made to automatically try adding ,scale to the
filter list??? this would fix a lot of colorspace/filter problems, no?
i think mplayer tries to add scale, but it does not help. retrying
playback using -vf fspp,scale would fix it (as it does with my display)

see? instead of this message
"Also try adding the scale filter, e.g. -vf spp,scale instead of -vf 
spp."
it could just retry automagically without user intervention.

-compn