[MPlayer-users] Playing QHD (3840x2160) material with mplayer

Reimar Döffinger Reimar.Doeffinger at stud.uni-karlsruhe.de
Sat Apr 12 00:20:27 CEST 2008

On Fri, Apr 11, 2008 at 01:54:04PM -0700, Dean S. Messing wrote:
> Can mplayer do it?  Currently, the system easily plays full-hd
> (1920x1080) uncompressed RGB at 60fps using the x11 driver.  The two
> CPUs sit at about 40%.  Interestingly, using the xv driver, the usage
> is quite a bit higher.

That is no surprise, xv (at least when using the default port) does not
support RGB (though I am surprised it works at all, my nVidia card can
only do at most a resolution of 2046 x 2046 with xv).
I would strongly suggest using YV12 as video format, this halves the
vide bitrate (though you also halve the resolution of the colour
information of the video - given how the human eye works that should not
really be relevant).
If you have to stay with RGB as source, try -vo gl -dr

Reimar Döffinger

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