From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:52620 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946671AbdDYLXc (ORCPT ); Tue, 25 Apr 2017 07:23:32 -0400 Date: Tue, 25 Apr 2017 13:23:30 +0200 From: Pavel Machek To: Pali =?iso-8859-1?Q?Roh=E1r?= Cc: Mauro Carvalho Chehab , sre@kernel.org, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, Sakari Ailus , Sakari Ailus , linux-media@vger.kernel.org Subject: Re: support autofocus / autogain in libv4l2 Message-ID: <20170425112330.GB7926@amd> References: <1487074823-28274-2-git-send-email-sakari.ailus@linux.intel.com> <20170414232332.63850d7b@vento.lan> <20170416091209.GB7456@valkosipuli.retiisi.org.uk> <20170419105118.72b8e284@vento.lan> <20170424093059.GA20427@amd> <20170424103802.00d3b554@vento.lan> <20170424212914.GA20780@amd> <20170424224724.5bb52382@vento.lan> <20170425080538.GA30380@amd> <20170425080815.GD30553@pali> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9zSXsLTf0vkW971A" Content-Disposition: inline In-Reply-To: <20170425080815.GD30553@pali> Sender: linux-media-owner@vger.kernel.org List-ID: --9zSXsLTf0vkW971A Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! On Tue 2017-04-25 10:08:15, Pali Roh=E1r wrote: > On Tuesday 25 April 2017 10:05:38 Pavel Machek wrote: > > > > It would be nice if more than one application could be accessing the > > > > camera at the same time... (I.e. something graphical running preview > > > > then using command line tool to grab a picture.) This one is > > > > definitely not solveable inside a library... > > >=20 > > > Someone once suggested to have something like pulseaudio for V4L. > > > For such usage, a server would be interesting. Yet, I would code it > > > in a way that applications using libv4l will talk with such daemon > > > in a transparent way. > >=20 > > Yes, we need something like pulseaudio for V4L. And yes, we should > > make it transparent for applications using libv4l. >=20 > IIRC there is already some effort in writing such "video" server which > would support accessing more application into webcam video, like > pulseaudio server for accessing more applications to microphone input. Do you have project name / url / something? Thanks, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --9zSXsLTf0vkW971A Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlj/MbIACgkQMOfwapXb+vI3DwCgiKESVKbAQiNndlyNRKCL0hQx puoAoJQajW9Bn1upml+pD933C3Vu39be =BHyl -----END PGP SIGNATURE----- --9zSXsLTf0vkW971A--