[mythtv-users] VDPAU update from the front lines, December 2008

Lindsay Mathieson lindsay.mathieson at gmail.com
Tue Dec 2 08:33:46 UTC 2008

Not Brad, but I am testing VDPAU, though not on a production system

On Tue, 2 Dec 2008 06:04:57 pm Yeechang Lee wrote:
> I'm surely not the only person, comfortable with his existing setup,
> who is nonetheless curious about what life is like on the
> ultra-bleeding video-technology edge. So:
> * Just how, exactly, is the OSD broken? I've read something of how
>   it's all white.

OSD works fine on mine, never seen any problems

> * I've also read of MPEG2 blockiness. How is that in practice? 

The FTA digital here (Australia) is displaying vertical distortions via VDPAU. 
Its watchable, but not acceptable. Obviously that needs work.

WMV3 codex is displaying much better, though I'm seeing occasioanl jerkiness 
on the 1080p content. I'm downloading Big Puck Bunny - 1080p H.264, that 
should be interesting.

Oddly, MPEG4 can't be viewed via VDPAU at all for some reason.

> * What other positives (beyond the near-zero CPU usage) and negatives,
>   big and small?

Well my test PC is KDE4 - amazingly when Alt-Tabbing between apps the 1080p 
video displays a perfect live motion thumbnail is the task bar :)

After this lot hits release, some day I will build a diskless, maybe even 
fanless frontend and relegate the server to a back room.

Lindsay Mathieson

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