[mythtv-users] Syncing to VBlank + Yadif(2x) = cpu at 100%

Cory H coryhoneyman at hotmail.com
Wed Apr 1 20:43:28 UTC 2009


> On 03/31/2009 08:41 PM, Cory H wrote:
> > I have been trying to figure out why playback of SD material (mpeg2 from pvr-150/350) pegs one core at 100% on my intel e8400 core duo2.
> > 
> > I traced it back to the XVideo syncing to VBlank with a 2x deinterlacer, like Yadif(2x).
> > 
> > If I use yadif with xv sync on, cpu is low.
> > If I use yadif(2x) with xv sync on, cpu is 100% (starts low, then after a couple seconds, jumps)
> > If I use yadif(2X) with xv xync off, cpu is low, but video is tearing.
> > 
> > Here is my specs
> > 
> > Mythtv 0.21 (mythdora install, 64bit)
> > CPU Intel E8400 Core Duo 2 (3Ghz)
> > GPU Nvidia 8400GS (256mb)
> > Drivers Nvidia 180.29
> > Display VGA to 1920x1080x60hz TV
> > NTSC mpeg2 videos (29.97fps)
> > 
> > Is this a bug in the drivers? Or playback issues? Or what?
> > 
> > Oh, and UseEvents "True" in xorg.conf already.
> 
> I think that has something to do with Composite extension, but I don't 
> remember the exact name of the setting to flip...
> 
> Mike


Thanks, but as mentioned, I think thats only for VDPAU, which I am not using.

 

I will try it anyways though.

 

So, anybody else got any ideas? I can't seem to find anything about this, so maybe it is even normal?

 

Can somebody else confirm this to be true or not?

 

Thanks


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