[mythtv-users] Fwd: Problem with XvMC being slow
Joseph A. Caputo
jcaputo1 at comcast.net
Thu Jan 5 16:33:05 UTC 2006
On Thursday 05 January 2006 1:21, Jerry Rubinow wrote:
> When using XvMC to play back video, CPU usage is low (30% for HD, 10%
> for SD), but the video plays back slower than realtime. I'm using an
> Nvidia 5200 card, with driver version 7667 (although I've tried every
> version up to the current 8XXX).
> Is there anything I should check? Anything obviously wrong from the
> following details? Or is this the XvMC slowdown I've read about?
> What are my options for fixing this?
> If I use libmpeg2, SD plays back fine (~30% CPU), but HD maxes out
> the CPU. I'm using current SVN myth as of a couple of days ago.
> /etc/X11/XvMCConfig points to libXvMCNVIDIA_dynamic.so.1. My GUI is
> 1280x720. I'm not using any filters, and I have Enable OpenGL
> vertical sync for timing checked.
I could be way off base on this, but something in my memory is nagging
me... something about maybe Nvidia's XvMC not supporting/performing
well at certain resolutions? Have you tried changing your horizontal
resolution to something smaller, like 1024?
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