On 11 January 2009 23:44:38 GWater wrote: > Vasily Khoruzhick schrieb: > > On 11 January 2009 22:29:20 GWater wrote: > >> Vasily Khoruzhick schrieb: > >>> On 11 January 2009 15:25:56 Hans de Goede wrote: > >>>> Vasily Khoruzhick wrote: > >>>>> Hi, Hans > >>>>> > >>>>> Recent sn9c20x driver written by microdia project > >>>>> (http://groups.goolge.com/group/microdia) introduce new output format > >>>>> - sn9c20x-i420. This format is actually scrambled yuv420, so it's > >>>>> very easy and fast to convert it to yuv420. This patch adds > >>>>> sn9c20x-i420 decoder to the libv4l-0.5.7 > >>>> > >>>> Hi, > >>>> > >>>> As you've probably already seen from the release mail, I've just > >>>> released libv4l-0.5.8, which includes your patch. > >>>> > >>>> Is there any more image format conversion code inside the sn9c20x > >>>> driver? If so it would be really good to move that to userspace too, > >>>> once that is done the driver can be moved in to the mainline kernel > >>>> (if considered ready by its devs) > >>> > >>> Nope, there's no more image format conversion code inside the sn9c20x > >>> driver, but I really don't know if it's time to move driver into the > >>> mainline kernel. I think we should discuss this question on the > >>> microdia maillist. > >>> > >>>> Regards, > >>>> > >>>> Hans > >>> > >>> Regards > >>> Vasily > >> > >> Got myself the 0.5.8 release from fedora updates-testing and it works > >> nicely with my bandwidth-dependent JPEG-compression patch. > >> > >> Therefore I'd like to push that patch now. I attached it again. Maybe > >> someone wants add something to the two lines I wrote ;) . > >> > >> GWater > > > > Yep, I want to make a little modification: > > > > jpeg var should be set to 0 by default, and it should be forced to 1 on > > FULL and HALF -speed devices. In this case user can enable jpeg if he > > wants to :) > > I thought about that, too. > > However I got to the conlcusion that this way people with LOW- and FULL- > speed devices can't disable JPEG. > > My patch however does still allow everyone to choose: > LOW- and FULL-speed users can choose anyway and HIGH-speed users can use > the "bandwidth" setting to work around the forced non-JPEG output. And a > bandwidth (alternate-)setting of 7 should still offer enough speed for > JPEG. > > Please consider this. > > GWater
On usb-1 bus you can't use any format except jpeg :) So users has no choice if they use sn9c20x cam on usb-1 :)
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