[mythtv] Overscan doing weird things (wrapping) with bob deinterlace

Ben Howe bmythtvdevel at k9sr.us
Sat Apr 30 14:41:56 UTC 2005


Kyle Rose wrote:
> FWIW, I've (incorrectly) had non-zero overscan and scan displacement on
> my desktop frontend for a long time; since the videoout_xv.cpp changes,
> the top X lines of each frame have appeared at the bottom of the display
> window, and everything else has been moved up by X lines.  This effect
> disappears when I zero out the overscan stuff.
> 
> Strange thing is that this effect only appears with bob, by which I
> probably mean only double framerate deinterlacers.  Just FYI, if you
> encounter a vertical wrapping problem, this is probably the issue.
> 
> Cheers,
> Kyle

This is the same thing that was happening to me which caused me to post
the message on Apr 22: "Re: [mythtv] XVideo XvMC merge patch (v17)".  I
just noticed this solution late yesterday, too.  However, I can still
set the overscan to 1 or 2 percent if I move the vertical displacement
down 1 or 2.  Thanks for the info/confirmation.

Ben


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