Hi Chris and Hans, On Mon, Sep 24, 2012 at 12:16:01PM -0700, Chris MacGregor wrote: ... > > (I have patches to add the controls, but I haven't had time yet > >to get them into good enough shape to submit - sorry!) > >> > >>It seems to me that for applications that want to set them to > >>the same value (presumably the vast majority), it is not so hard > >>to set both the green_red and green_blue. If you implement a > >>single control, what happens for the (admittedly rare) > >>application that needs to control them separately? > > > >Well if these are showing up in something like a user oriented > >control-panel (which they may) then having one slider for both > >certainly is more userfriendly. > > Okay, that's a fair point. But an application that wanted to could > insulate the user from it fairly easily. > > I'm not opposed to having a single control, *if* there is some way > for apps to control the greens separately when they need to. I > don't have a brilliant solution for this offhand, other than just > exposing the separate controls.
I do recognise there's a need for developers to fiddle with such low level controls as these but I can hardly see end users using them as such. Either automatic white balance or a white balance control with higher level of abstraction is likely better for that purpose. Some sensors have only a single gain for the greens so these devices should anyway implement just a single green gain (which is neither of the two). Perhaps such abstraction could be performed by libv4l? Just my 0,05 euros. Kind regards, -- Sakari Ailus e-mail: sakari.ai...@iki.fi XMPP: sai...@retiisi.org.uk -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
