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

[Michael T. Dean]

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