[mythtv-users] Where to set hue/saturation

[Joe Byrne]

----- Original Message ----- 
From: "Joseph A. Caputo" <jcaputo1 at comcast.net>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Wednesday, March 10, 2004 7:00 AM
Subject: Re: [mythtv-users] Where to set hue/saturation


> On Wednesday 10 March 2004 09:40, Chris Wieringa wrote:
> > >>>> tommy at home.tig-grr.com 3/10/2004 8:56:33 AM >>>
> > >>
> > >> The picture from my mythtvbox is over saturated. (not considering
> > >> the colors, the picture from my mythbox is _better_ than the
> > >> actual TV-picture). Were is the the best place to change this
> > >> setting?
> > >
> > >This is a bit tricky.  It is stored in the channel table in the
> > > database. The colour field is the saturation.  It's stored
> > > per-channel, so you would do this to update the setting globally:
> > >
> > >  $ mysql -u mythtv -p mythconverg
> > >  (type password 'mythtv' here)
> > >  mysql> update channel set colour=#;
> > >
> > >I'm not certain what the range is.  I think it is 0-65535, with a
> > > default value of 32768.
> >
> > Is there any way to change this for a particular tuner instead of per
> > channel? I have a two tuner setup - a PVR250 (picture/color is great)
> > and a ATI TV-Wonder (bttv-based, picture is too bright/washed out).
> > I'd like to fine tune the global picture settings for the bttv tuner,
> > but to leave the PVR250 alone.  Can this be done somewhere?
>
> Unfortunately, I don't think so... at least not yet.  It's been asked
> for before...

I have a similar problem.  I have both a bttv card and a PVR250.  The latter
is oversaturated and the volume is too low across the board.  I've since
re-installed (and thus am facing the problem again), but before I think I
had used the PVR250 utility test_ioctl to adjust the saturation down.  If I
had the reverse problem, I maybe would use Myth to adjust the bttv card and
test_ioctl to compensate for the impact of these adjustments on the PVR250.

What do people think of that approach?  I would then make note of the values
I selected and stuff a test_ioctl command into rc.init or some such place.

JB