[mythtv] [PATCH] V4L picture controls use same interface as Xv

[jcaputo1 at comcast.net]

> Joseph A. Caputo wrote:
> > The attached patch makes the V4L picture controls (Contrast, 
> > Brightness, 
> > Color, Hue) use the same UI as the Xv picture controls (i.e., a 
> > single key 
> > toggles through the 4 attributes, with LEFT and RIGHT changing the 
> > selected 
> > setting).  Not only does it make the UI more consistent, but it 
> > eliminates 
> > the current 8 keybindings for these controls and replaces them 
> > with just 1 
> > (F1).
> 
> Would it be possible to have separate V4L settings for each
> encoder?  I have a PVR-250 and a bttv card.  The bttv card needs
> the contrast set much differently than the PVR-250.  From what
> I've read on the mailing list, this sounds like a fairly common
> situation.  Will V4L allow each encoder to be used at the same time
> with different settings?  If it does, would anyone be interested in
> coding it?
> 
> Thanks,
> Bob C

Hmmm... the V4L settings are stored on a per-channel basis.  IIRC (I don't have access to my DB atm), if you're sharing a video source between more than one card, then they'll also share the V4L settings for the channels.

However, in your case I think it's a moot point, as the V4L picture controls don't affect the PVR-250 (AFAIK), since it's not a V4L card.  Somebody please chime in if I'm wrong.

-JAC