From mboxrd@z Thu Jan 1 00:00:00 1970 From: phdm@macq.eu (Philippe De Muyter) Date: Thu, 16 Mar 2017 10:47:29 +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: <1489656360.2303.2.camel@pengutronix.de> References: <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> <1489656360.2303.2.camel@pengutronix.de> Message-ID: <20170316094729.GA5595@frolo.macqel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Mar 16, 2017 at 10:26:00AM +0100, Philipp Zabel wrote: > 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. Including choosing the framerate ? Sorry, I have no time these days to test it myself. And I cited imxv4l2videosrc for its ability to provide the physical address of the image buffers for further processing by other (not necessarily next in gstreamer pipeline, or for all frames) hardware-accelerated plugins likes the h.264 video encoder. As I am stuck with fsl/nxp kernel and driver on that matter, I don't know how the interfaces have evolved in current linux kernels. BR Philippe -- Philippe De Muyter +32 2 6101532 Macq SA rue de l'Aeronef 2 B-1140 Bruxelles