[MPlayer-users] How do I avoid YV12 <-> BGR 16 bit conversion on playback

[cmisip]

I switched to a later version of mplayer and it was able to play YV12
without having to convert to BGR 16.

My parameters to mplayer are:

nice -n -5 mplayer -cache 2048 -framedrop -lavdopts idct=7 -dr -quiet

Any other suggestions on improving playback performance ?

Thanks


On Thu, 2004-04-01 at 19:34, D Richard Felker III wrote:
> On Thu, Apr 01, 2004 at 05:12:20PM -0500, cmisip wrote:
> > I get this output on playback.
> > 
> > VDec: vo config request - 320 x 240 (preferred csp: Planar YV12)
> > Could not find matching colorspace - retrying with -vf scale...
> > Opening video filter: [scale]
> > VDec: using Planar YV12 as output csp (no 0)
> > Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
> > No accelerated colorspace conversion found
> > SwScaler: using unscaled Planar YV12 -> BGR 16-bit special converter
> > VO: [fbdev] 320x240 => 320x240 BGR 16-bit
> > 
> > I am playing the video in a zaurus 5600 so I dont have much cpu cycles
> > to spare.  I read that doing software scaling realtime is a big cpu
> > hit.  I was wondering If I need special encode parameters to prepare the
> > video so that this colorspace conversion is not needed on playback.  
> 
> No, there are no useful codecs that encode in RGB space because it's
> inefficient. Maybe -dr would make it faster?
> 
> Rich
> 
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