[mythtvnz] VDPAU Results

[James Booth]

Over the weekend my fear of incurring the wrath of wife and family from a 
broken Myth system was overcome and I installed the VDPAU patches version of 
Myth from Jean-Yves' repository. Here are the results so far:

System: Mythbuntu 8.10, Intel E2180 (2 core, 2Ghz), 4GB ram, nVidia GeForce 
8600GT Silent, HVR-1200 DVB-T card, HDMI out to 1366 x 766 native LCD, and 
1280 x 720 native projector. Using 180.44 video drivers.

On all resolutions, except 1080i, playback seems pretty solid. I get the very 
occasional flicker or audio pause, more so with 720p. 1080i however is not so 
solid - regular audio drop-outs and sync errors, moderately regular video 
stutters. Typical log message is "2009-04-06 10:53:56.742 Audio -97 ms behind 
video but already 75 video frames queued. AV-Sync might be broken."  I have 
"Aggresive sound card buffering" unchecked and "Extra audio buffering" 
checked.

It's almost there, but not quite. CPU usage does not click over 10% at any 
time. There is a bit of stutter when first switching to the HD input, which 
coincides with disk I/O maxing out for a second, then everything settles down.

I left it running for three hours on the Freeview Ch 100 and video playback 
never stopped, however mythfrontend stopped responding. Have also had a couple 
of occasions when dropping out of live TV that mythfrontend is still running 
but the menu widgets stop getting drawn.

Looking really positive, but not quite there yet.
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