Anyone working on V4L2 for BSD?

[Julian Elischer]

Jacob Meuser wrote:

>On Tue, Apr 12, 2005 at 11:51:14AM -0700, Julian Elischer wrote:
>  
>
>>I'm considerring it.. It looks quite doable. (assuming we can get 
>>compatible include files
>>without copyright problems.)
>>    
>>
>
>I can forsee at least one big obstacle in the bktr driver.  it is
>necessary to call TVTUNER_SETTYPE before setting the tuner, even if
>you use TVTUNER_SETFREQ, which is quite different than V4L2.
>
>there are several bugs lurking in bktr.  for example, why are the
>U saturation and V saturation ranges different? according to the
>datasheets they should be the same.  also notice that on startup
>bktr reports a U saturation above the supposed limit!
>  
>

If you supply fixes.. and others can test them, I can commit them..
I don't have a bktr card.

>I'd much rather see the problems fixed than a shim added to it.
>how about working about multiple frame buffers?  that's probably need
>for many V4L2 programs.  IMO, it would be better (maybe even easier)
>to rewrite bktr with a V4L2 interface than to try to add V4L2 to it.
>  
>

I wasn't planning on either, but rather making a v4l2 framework to allow
drivers and utilities to hook to each other.. whether the bktr driver 
gets rewritten
or shimmed is an orthogonal question :-)

>but, IMO, the best thing would be to fix bktr and document it better.
>  
>

anyone who wants to fix or rewrite it is quite welcome to do so..
if it's an improvement, it'll get committed..

I'm interested in webcams at the moment. I want to see if it's possible 
to make it easier for
people to port such things as gnome-meeting (higher rev than the port) 
so that we can get
some real videoconferencing in freeBSD.


>some bktr programs -> http://www.jakemsr.com/bsdav/bsdav-1.0.tar.gz
>
>  
>