[mythtv-users] Myth 0.22 / VDPAU / Horizontal "noise/sparkles"

Blammo blammo.doh at gmail.com
Fri Feb 5 21:59:22 UTC 2010

On Fri, Feb 5, 2010 at 10:51 AM, Frank Merrill <fmerrill1 at gmail.com> wrote:
> One other thing is I wonder about the VDPAU buffers with the Internal
> player and what they are set at.
> It can be changed using a custom filter setting  of
> 'vdpaubuffersize=xx' where I would set that to at least 24, but I'm
> not certain as to whether the VDPAU buffers are being set
> automatically now by the VDPAU code in Myth.
> I believe he reported that it did not show the symptom with same MPEG2
> recordings played back in mplayer using VDPAU, and if I am not
> mistaken, mplayer does set the VDPAU buffer sizes depending upon the
> video codec (decoder) being used.

Gave me a good idea....

I went in and change the DECODER to "STANDARD" and left the "RENDERER"
to VDPAU and from what I can see -- the decoding artifacts are gone...
I'll have to wait till I'm home in front of the machine, not relying
on x11vnc, but they appear to be gone... and when I switch back to
VDPAU decoder, they come back.

Running about 38-40% CPU playing 1080i NFL football
Changing back to VDPAU decode is 12% CPU, but artifacting.

maybe a compromise, just in time for superbowl.....

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