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Groups > linux.kernel > #1630420

Re: support autofocus / autogain in libv4l2

From Pavel Machek <pavel@ucw.cz>
Newsgroups linux.kernel
Subject Re: support autofocus / autogain in libv4l2
Date 2017-04-25 13:30 +0200
Message-ID <tA6Po-420-5@gated-at.bofh.it> (permalink)
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Hi!
On Tue 2017-04-25 10:08:15, Pali Rohár 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...
> > > 
> > > 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.
> > 
> > Yes, we need something like pulseaudio for V4L. And yes, we should
> > make it transparent for applications using libv4l.
> 
> 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
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Re: support autofocus / autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-24 23:30 +0200
  Re: support autofocus / autogain in libv4l2 Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-04-25 03:50 +0200
    Re: support autofocus / autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-25 10:10 +0200
      Re: support autofocus / autogain in libv4l2 Pali Rohár <pali.rohar@gmail.com> - 2017-04-25 10:20 +0200
        Re: support autofocus / autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-25 13:30 +0200
          Re: support autofocus / autogain in libv4l2 Pali Rohár <pali.rohar@gmail.com> - 2017-04-25 13:40 +0200
            Re: support autofocus / autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-25 14:30 +0200
              Re: support autofocus / autogain in libv4l2 Pali Rohár <pali.rohar@gmail.com> - 2017-04-25 15:00 +0200
            Re: support autofocus / autogain in libv4l2 Nicolas Dufresne <nicolas@ndufresne.ca> - 2017-04-25 19:00 +0200
        Re: support autofocus / autogain in libv4l2 Nicolas Dufresne <nicolas@ndufresne.ca> - 2017-04-25 19:00 +0200
      Re: support autofocus / autogain in libv4l2 Nicolas Dufresne <nicolas@ndufresne.ca> - 2017-04-25 19:00 +0200
        Re: support autofocus / autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-26 13:00 +0200
    [patch] propagating controls in libv4l2 was Re: support autofocus /  autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-26 13:00 +0200
      Re: [patch] propagating controls in libv4l2 was Re: support  autofocus / autogain in libv4l2 Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-04-26 13:20 +0200
        [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Pavel Machek <pavel@ucw.cz> - 2017-04-26 15:30 +0200
          Re: [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2017-04-26 17:50 +0200
            Re: [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Pavel Machek <pavel@ucw.cz> - 2017-04-27 01:00 +0200
              Re: [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2017-04-27 08:00 +0200
            Re: [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-05-03 21:10 +0200
              Re: [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Pavel Machek <pavel@ucw.cz> - 2017-05-03 22:00 +0200
          Re: [patch] autogain support for bayer10 format (was Re: [patch]  propagating controls in libv4l2) Pavel Machek <pavel@ucw.cz> - 2017-05-01 00:50 +0200
      Re: [patch] propagating controls in libv4l2 was Re: support  autofocus / autogain in libv4l2 Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-04-26 13:30 +0200
        Re: [patch] propagating controls in libv4l2 was Re: support  autofocus / autogain in libv4l2 Pavel Machek <pavel@ucw.cz> - 2017-04-29 11:20 +0200

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