[mythtv-users] Accuracy of HDTV processor requirements statement in HOWTO

James Dastrup jc at dastrup.com
Tue Feb 7 18:33:48 UTC 2006

On Tuesday 07 February 2006 11:25, Robert Kulagowski wrote:
>  From the HOWTO:
> "
> To playback HDTV content, plan on a powerful CPU.  "How powerful?"
> depends on a number of factors, such as the capture resolution,
> whether the video is progressive or interlaced, and whether your
> display card has hardware-assist support for Linux. For 720p content
> (1280x720), a 2.4GHz P4 should be sufficient.
> For 1920x1080i->1920x1080p with the better deinterlacing methods
> done in real time a 2.4GHz CPU is taxed, but should work if you use
> "Bob and Weave" deinterlacing, or if you have an NVIDIA card with
> MPEG-2 hardware acceleration.  If you enable the hardware
> acceleration, you may be able to use a 1.8GHz processor.
> "
> I'm looking for feedback from people that are running HDTV with
> lower-end processors; I've got a 2.4Ghz HT P4, nvidia 7676 and a
> 1080i program with XvMC still surges:  about 2 seconds of regular
> speed, then a micropause of about .5 seconds, then repeat; not sure
> if this is tied into trac bug #1219 or if it's CPU bound.  I'm even
> more concerned with the statement that a 1.8Ghz should be good
> enough.

2.4 with XvMC should be fine. I'm doing the same with a P4 2.26. My CPU 
hangs around 50% while playing HD content. Are you sure XvMC is working 
properly? XvMC enabled in the setup? Is MythTV compiled with nvidia 

More information about the mythtv-users mailing list