[mythtv-users] Accuracy of HDTV processor requirements statement in HOWTO
bob at smalltime.com
Tue Feb 7 18:25:09 UTC 2006
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.
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