[mythtv] HDTV CPU utilization

Chris Mumford cmumford at cmumford.com
Sat Jan 15 12:42:30 EST 2005


When I watch 1080i content my CPU is always pegged. I'm running the very
latest source from CVS on a 3.0 GHz P4 with a NVIDIA 5200 with XvMC enabled.
This CPU utilization is over twice what I see if I use MPlayer directly to
watch a movie.

When I run MPlayer I'm calling it like this:

  Mplayer -fs -cache 8192 -vo xvmc:queue -vc ffmpeg12mc /dev/dtv

This is also the line that I put into the TV Viewing setup section in
MythTV. I did notice that if I take out the "-vo xvmc:queue -vc ffmpeg12mc"
from MythTV that it has no difference with playback performance. Does MythTV
playback with XvMC?

I have turned off all of the features that I think would require any kind of
video processing like de-interlacing and commercial detection.

Any suggestions?

Regards,

Chris Mumford
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