[AG-DEV] Additional Grabber settings

Douglas Kosovic douglask at itee.uq.edu.au
Sun Jul 1 19:34:47 CDT 2007


Hi Jason,

> Don't get me wrong, once everything is set, it works fine!  It simply
> would be nice to be able to hard "set" these variables somehow.

Does your webcam driver take a gamma and gain kernel module argument? If
so, it can be set in /etc/modprobe.conf.


Doug

> -----Original Message-----
> From: Douglas Kosovic [mailto:douglask at itee.uq.edu.au]
> Sent: Saturday, 30 June 2007 10:05 AM
> To: AG-DEV
> Subject: Re: [AG-DEV] Additional Grabber settings
> 
> On Fri, 2007-06-29 at 10:48 -0700, Todd Zimmerman wrote:
> > Jason Bell wrote:
> > > G'day All
> > >
> > > I don't know if there is an equivalent under windows or whatever,
> but I
> > > notice with V4L2, there are some additional grabber controls, these
> > > being Gamma and Gain.
> > >
> > > What is the chance of making these potentially a savable
> configuration
> > > item???
> > >
> > > As I find I have to adjust my USB camera setting each time when vic
> > > starts.  Does vic have a default file like rat has????  Or should I
> > > create a vic.tcl file to configure these settings????
> >
> >
> > Here, here!  After using the new Vic for the last few weeks - and
> having to set this every time I
> > change venues... I could _really_ use a way to set this
> automatically.
> 
> Your webcam driver kernel module should be remembering it's settings
> till a reboot or it's rmmoded. Which driver you using? You could
> probably also set your preferred values in /etc/modprobe.conf.
> 
> For some webcams like the UVC ones, you need to set the 50Hz flicker
> prevention or 60Hz flicker prevention which needs to be set outside of
> vic. Unfortunately the flicker prevention control is a private control
> specific to the UVC webcam driver, so can't just be added as a generic
> V4L2 control.
> 
> 
> Cheers,
> Doug
> 
> 




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