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

Kevin Kuphal kuphal at dls.net
Tue Feb 7 19:14:28 UTC 2006

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.
My Athlon 2000 plays back the test 1080i clip I have perfectly fine with 
Nvidia 7676 and XvMC on an MX440.


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