[mythtv] Preventing mythtv from changing color attributes on recordings

Bob Cottingham bobnvic at gmail.com
Tue Mar 7 19:56:58 UTC 2006


I have a PVR-150 in a slave backend that has very low saturation and
two PVR-250s in the master backend that have correct saturation.  I
can adjust the saturation for just the PVR-150 by using ivtvctl
--set-ctrl=saturation=127 and get a good picture without affecting the
PVR-250s, however it will be reset at the next recording.

I sent an email to the -users list but didn't receive a reply and I
also sent an email to the ivtv-users list and found several others
with the same tuner type who were experiencing the same problem,
however I haven't received any solutions yet on the driver side.  I've
looked through the mythtv source to try to find where it is setting
the color attributes, but note that I am not in any way a programmer.

What I would like to know is if I commented out all of the
Channel::SetColourAttribute and Channel::ChangeColourAttribute stuff
(by this I mean commenting out everything between the parentheses for
each, but not the line with the name on it)  within
/libs/libmythtv/channel.cpp if this would simply stop mythtv from
making changes to saturation (and brightness, contrast and hue of
course) at each recording and not have any other negative
consequences.  This would then allow me to change the saturation using
ivtvctl.

If there is a better solution, I would certainly love to hear it as well.

Thanks,
Bob C


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