[mythtv] Updated patch for directshow filters with MythTV (for CoreAVC)

Andrew Lyon andrew.lyon at gmail.com
Fri Feb 16 00:19:17 UTC 2007

On 2/15/07, Alan Nisota <alannisota at gmail.com> wrote:
> Andrew Lyon wrote:
> > The colour issue remains, "vertical, colour/chroma ghosting" is a good
> > description, alan do you see the same on the other sample I sent?
> I've been unable to see any chroma problems so far (but I haven't had a
> chance to look at the new sample I got from you).  However, I saw this
> on the Doom9 forum:
>     Has anybody tried setting the output color space to RGB32? I want to
>     use it because there are problems with the color range in YUV modes
>     on NVidia cards (16-235 instead of 0-255). The reason I need this is
>     because the Fix VMR9 color range is not working when DirectVobSub
>     (or any other postprocessing) is used.
> I'm not too familiar with the output formats, but we are using I420
> which is a 12bit format like the other YUV modes.  If this is the
> problem it would explain why I haven't seen the issue on the samples
> I've looked at.  You can try to fix it via:
> mythregistercodec -r ~/.mythtv/registry -k
> "HKCU\\Software\\CoreCodec\\CoreAVC Pro\\VMR9Fix" -v "1"
> It may or may not work though.  Currently we can only set string values
> for registry keys, and this would normally be a DWORD.  If it doesn't
> help, I'll put together a patch to allow setting the type.  It may be
> that I'm barking up the wrong tree here, too.

Tried it, no change.


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