[mythtv] bob deint issue with latest cvs

Isaac Richards ijr at case.edu
Fri Feb 4 17:31:53 UTC 2005


On Friday 04 February 2005 10:00 am, Daniel Thor Kristjansson wrote:
> On Fri, 4 Feb 2005, Isaac Richards wrote:
> ]On Thursday 03 February 2005 10:06 pm, Daniel Thor Kristjansson wrote:
> ]> On Fri, 4 Feb 2005, Andy McMullan wrote:
> ]> ]System is bt878/PAL/nvidia/tvout.
> ]> ]With latest cvs, I see image 'vibration' when using bob deint. This is
> ]> Why are you using deinterlacing with TVOut?
> ]There does seem to be less flicker at the bottom of the image with the
> height ]changed to - 2 * halfLineSrc.
>
> The scaling is half a line off by the time it reaches the bottom with
> just -halfLineSrc and not with -2 * halfLineSrc, so this is better. I
> also changed DrawUnusedRects() so that it subtracts boboff lines from
> the bottom as well. This ensures that the colorkey line doesn't return
> on the bottom row because of rounding error.
>
> I've attached a patch that makes the fix and also ads two super verbose
> VB_PLAYBACK macros that should help me debug the problems people
> encounter.

I've applied this, but left the macros commented out - I generally run with 
VB_PLAYBACK on, and this would make my debugging more difficult.

Isaac


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