Date: Tue, 12 Apr 2005 12:31:49 -0700 From: Jacob Meuser <jakemsr@jakemsr.com> To: freebsd-multimedia@freebsd.org Subject: Re: Anyone working on V4L2 for BSD? Message-ID: <20050412193149.GA15619@puff.jakemsr.gom> In-Reply-To: <425C18A2.8010807@elischer.org> References: <425C18A2.8010807@elischer.org>
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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! 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. but, IMO, the best thing would be to fix bktr and document it better. some bktr programs -> http://www.jakemsr.com/bsdav/bsdav-1.0.tar.gz -- <jakemsr@jakemsr.com>
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