[MPlayer-users] Optimize video output from tv card

[Reimar Döffinger]

On Tue, Aug 25, 2009 at 01:50:42PM +0200, Michael wrote:
> I want to output external video from a tv encoder card (USB) to the screen. 
> It works, but it uses too much CPU power. If the stream is played back at 
> 25fps it uses 100% CPU. With 15fps it is about 50%.

What kind of CPU usage? In "top"/"time"/whatever program, user or sys?
What values does the MPlayer command line show for CPU usage?

> When I instead use a webcam, I can reach 25fps with about 50% only. So I 
> guess it is somehow the internal processing. Is there a way to optimize it?

What internal processing? There isn't any serious amount of processing
for that case, though using something suitable for video output like
-vo xv or -vo gl:yuv=2 should be somewhat better.