From mboxrd@z Thu Jan 1 00:00:00 1970 From: p.zabel@pengutronix.de (Philipp Zabel) Date: Thu, 16 Mar 2017 10:26:00 +0100 Subject: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit controls from a pipeline) In-Reply-To: <1489604109.4593.4.camel@ndufresne.ca> References: <20170310125342.7f047acf@vento.lan> <20170310223714.GI3220@valkosipuli.retiisi.org.uk> <20170311082549.576531d0@vento.lan> <20170313124621.GA10701@valkosipuli.retiisi.org.uk> <20170314004533.3b3cd44b@vento.lan> <20170314072143.498cde9b@vento.lan> <20170314223254.GA7141@amd> <20170314215420.6fc63c67@vento.lan> <20170315105049.GA12099@frolo.macqel> <1489604109.4593.4.camel@ndufresne.ca> Message-ID: <1489656360.2303.2.camel@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, 2017-03-15 at 14:55 -0400, Nicolas Dufresne wrote: > Le mercredi 15 mars 2017 ? 11:50 +0100, Philippe De Muyter a ?crit : > > > I would say: camorama, xawtv3, zbar, google talk, skype. If it runs > > > with those, it will likely run with any other application. > > > > > > > I would like to add the 'v4l2src' plugin of gstreamer, and on the > > imx6 its > > While it would be nice if somehow you would get v4l2src to work (in > some legacy/emulation mode through libv4l2), v4l2src works just fine, provided the pipeline is configured manually in advance via media-ctl. > the longer plan is to > implement smart bin that handle several v4l2src, that can do the > required interactions so we can expose similar level of controls as > found in Android Camera HAL3, and maybe even further assuming userspace > can change the media tree at run-time. We might be a long way from > there, specially that some of the features depends on how much the > hardware can do. Just being able to figure-out how to build the MC tree > dynamically seems really hard when thinking of generic mechanism. Also, > Request API will be needed. > > I think for this one, we'll need some userspace driver that enable the > features (not hide them), and that's what I'd be looking for from > libv4l2 in this regard. regards Philipp