[mythtv-users] Artifacts in DVB TV

[Matthew Phillips]

Hello all,

I've just finished setting up MythTV on an EPIA M10000N system with a 
VisionPlus DVB-T card - very happy with the results so far. Kudos to 
the myth developers.

I've been looking into one outstanding problem: the SD pictures I'm 
getting on some channels have, either at the top or bottom of the 
picture, a line of blank pixels which sometimes have some white streaks 
(see top left of attached example).

An enquiry to the linux-dvb mailing list indicated this is a normal 
artifact of the WSS (Wide Screen Signaling) standard embedded into 
analog PAL intended for digital broadcast.

So, it looks like I need to have Myth crop a few lines from the top and 
bottom of 16:9 content. However, I'm using XvMC and it (a) appears 
filter chains can't be used with it and (b) I couldn't find any info on 
cropping filters anyway (given they even exist).

Does anyone have any idea whether there's something I can try?

Cheers,

Matthew.

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