[MPlayer-users] Disable colospace conversion

[Andy Furniss]

Umar Qureshey wrote:
> Hi,
> I am trying to figure out what the CPU load is when decoding an H.264 stream but without the colorspace conversion.
>
>   Is there a way in mplayer to just decode a file and not do colorspace conversion?

CSC is normally done by the -vo so normally hardware (gpu) eg. -vo xv or 
gl or vdpau but may be done by cpu eg -vo x11.

So I suppose -vo null will do what you want but some of the difference 
in cpu usage you see may not be CSC but because you are avoiding really 
displaying which may (depending on -vo implementation details) show 
extra cpu use when waiting to vsync with the display.

I assume -vo null will also avoid a mem copy as well.