#1 setPictureProperties() does not work correctly

[Dev_Null]

I am using analogtv plugin 0.9.35, vdr-1.2.6 /
vdr-1.3.12 and a TV card Avermedia M156 based on the
saa7134 chipset.
The setPictureProperties() function is not working
correctly for this card because it has different
minimum and maximum values for the V4L2 parameters
brightness, contrast, saturation and hue.
So I wrote a small patch to solve this problem. See
attachment.
It should now work for all TV cards.

[Dev_Null]

Patch file