[mythtv-users] S-video & widescreen - both in and out

John Sturgeon mythtv at sturgeonfamily.com
Thu Mar 31 23:45:19 UTC 2005


Nigel Metheringham wrote:

> I have a box running Myth 0.17 with a NVidia MX4000 card, 2 DVB-T 
> cards and a PVR350.
>
> I've currently doing video out by S-Video (may move to vga/SCART later 
> but thats not convenient right now).  Quality is suprisingly good.  
> The TV picks the signal up and widescreens it (I can select this and 
> have a centreboxed 4:3 image instead).  Experimentation appears to 
> show that the NVidia TV-out is only happy with a standard 4:3 
> resolution - I tried to set up a 16:9 aspect ratio display and I get 
> messages that those modes don't work with TV-Out.  So I am getting 
> stretched pixels.
>
> Is there any appropriate setting set that would allow Myth to know 
> about/correct for the image stretching - widescreen uis getting 
> letterboxed and stretched so I'm seeing some really wide people!
>
> Alternatively anyone know a way of talking the NVidia stuff into 
> handling a wider aspect ratio output so I can get something close to 
> square pixels?
>
> On the input, I have the PVR-350 hooked to a sky box which habitually 
> outputs in a 16:9 format.  The PVR350 card is compressing those into a 
> 4:3 ratio - and the settings within Myth do not let me set anything 
> corresponding to PAL widescreen pixel sizes.
>
> Any indicators as to the best way to deal with this would be great.
>
> Cheers
>    Nigel.
>
I'm not sure if I understand.  You're trying to output 16:9 through 
s-video?  Can't be done.  The best you can do is letterbox a 4:3 and 
zoom in on your display, but the results might be somewhat pixelated.

-- 
John Sturgeon <><
http://www.sturgeonfamily.com/mythtv.php



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