[mythtv-users] picure quality PVR350/FC1

[Hugo van der Kooij]

On Mon, 24 Jan 2005, MadPatrick wrote:

> ivtvctl -j reg=0x6c,val=0xfe -d /dev/video0
> This one i already have, which i needed to remove the green-screen
> But i found also this:
> ivtvctl -j reg=0x6c,val=0xda -d /dev/video16
>
> Don't know the difference between video0 and video16, but in mythtv setup i
> saw also video16.
>
> ivtvctl -j reg=0x61,val=0xb1 -d /dev/video0
> When i use this setting the screen is scrambled.
>
> I've a PVR-350 Model 993 tune=38. maybe this i different with yours

For PAL tuners this might help you out:

/usr/bin/ivtvctl -d /dev/video0 -u 0xff
/usr/bin/ivtvctl -d /dev/video0 -p 4
/usr/bin/ivtvctl -d /dev/video0 -f width=720,height=576
/usr/bin/ivtvctl -d /dev/video0 -c dnr_mode=0
/usr/bin/ivtvctl -d /dev/video0 -c dnr_temporal=0
/usr/bin/ivtvctl -d /dev/video0 -c dnr_spatial=0
/usr/bin/ivtvctl -j reg=0x6c,val=0xfa -d /dev/video16
/usr/bin/ivtvctl -j reg=0x2d,val=0x38 -d /dev/video16

It gives me a rather good image.

Mind you video16 is the OUTPUT device and video0 the INPUT device.
(hence to watch TV you may use: dd if=/dev/video0 of=/dev/video16 bs=64k &)

Hugo.

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