[pvrusb2] flicker at the top
isely at isely.net
Thu Dec 21 10:04:50 CST 2006
On Thu, 21 Dec 2006, Keith Moyer wrote:
> > Sorry for asking so many questions... but I noticed that after a while
> > (1-2 min), there is a flicker at the top of the picture. It is
> > blocky, and extends maybe to 15% of the picture from the top, and
> > usually stops in mid-line. I am using mythtv, tried different
> > settings (width x height, bitrates), but it always shows up.
> I've also experienced this, but only when changing channels rapidly. I
> assumed it was the following error on the main pvrusb2 page.
> "For either type of device, repeatedly rapidly changing channels seems to
> result in video corruption which persists until the device is streaming is
> completely stopped then restarted. Some people seem to experience this,
> others seem not to. I have been unable to find a pattern to this, except to guess
> that the temporary disruption in digital data to the encoder during the channel
> change can sometimes confuse the encoder."
> I have a 24xxx device, and can reproduce this at will (exactly as Tamas
> described). It sounds like it's already been looked into, but if more recreates
> would help, I'm game. I haven't made the move to linux on my main pvr box
> (still working on the girlfriend acceptance factor), so it hasn't been a major
> problem here, but I'd like to help straighten it out if possible.
> - Keith
I've got some time-off from work coming up (for the holidays,
obviously). I plan on spending some of that time to chase this problem.
Right now, this is the biggest and most annoying open issue in the
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