Hi!
> > Now. There is autogain support in libv4lconvert, but it expects to use
> > same fd for camera and for the gain... which does not work with
> > subdevs.
> >
> > Of course, opening subdevs by name like this is not really
> > acceptable. But can you suggest a method that is?
>
> There are t
Hi!
> > + devices[index].subdev_fds[0] = SYS_OPEN("/dev/video_sensor", O_RDWR, 0);
> > + devices[index].subdev_fds[1] = SYS_OPEN("/dev/video_focus", O_RDWR, 0);
> > + devices[index].subdev_fds[2] = -1;
>
> Hardcoding names here is not a good idea. Ideally, it should open
> the MC, using the
Em Wed, 26 Apr 2017 12:53:00 +0200
Pavel Machek escreveu:
> Hi!
>
> > > > IMO, the best place for autofocus is at libv4l2. Putting it on a
> > > > separate "video server" application looks really weird for me.
> > >
> > > Well... let me see. libraries are quite limited -- it is hard to open
Hi Pavel,
Em Wed, 26 Apr 2017 12:53:00 +0200
Pavel Machek escreveu:
> Hi!
>
> > > > IMO, the best place for autofocus is at libv4l2. Putting it on a
> > > > separate "video server" application looks really weird for me.
> > >
> > > Well... let me see. libraries are quite limited -- it is h
On Tue 2017-04-25 12:53:27, Nicolas Dufresne wrote:
> Le mardi 25 avril 2017 à 10:05 +0200, Pavel Machek a écrit :
> > Well, fd's are hard, because application can do fork() and now
> > interesting stuff happens. Threads are tricky, because now you have
> > locking etc.
> >
> > libv4l2 is designed
Hi!
> > > IMO, the best place for autofocus is at libv4l2. Putting it on a
> > > separate "video server" application looks really weird for me.
> >
> > Well... let me see. libraries are quite limited -- it is hard to open
> > files, or use threads/have custom main loop. It may be useful to
> >
Le mardi 25 avril 2017 à 13:30 +0200, Pali Rohár a écrit :
> Pinos (renamed from PulseVideo)
>
> https://blogs.gnome.org/uraeus/2015/06/30/introducing-pulse-video/
> https://cgit.freedesktop.org/~wtay/pinos/
>
> But from git history it looks like it is probably dead now...
This is also incorrect
Le mardi 25 avril 2017 à 10:05 +0200, Pavel Machek a écrit :
> Well, fd's are hard, because application can do fork() and now
> interesting stuff happens. Threads are tricky, because now you have
> locking etc.
>
> libv4l2 is designed to be LD_PRELOADED. That is not really feasible
> with "complex
Le mardi 25 avril 2017 à 10:08 +0200, Pali Rohár a écrit :
> 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 u
On Tuesday 25 April 2017 14:28:20 Pavel Machek wrote:
> On Tue 2017-04-25 13:30:09, Pali Rohár wrote:
> > On Tuesday 25 April 2017 13:23:30 Pavel Machek wrote:
> > > Hi!
> > > On Tue 2017-04-25 10:08:15, Pali Rohár wrote:
> > > > On Tuesday 25 April 2017 10:05:38 Pavel Machek wrote:
> > > > > > > I
On Tue 2017-04-25 13:30:09, Pali Rohár wrote:
> On Tuesday 25 April 2017 13:23:30 Pavel Machek wrote:
> > 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 th
On Tuesday 25 April 2017 13:23:30 Pavel Machek wrote:
> 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 g
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
Hi!
> > Umm, and it looks like libv4l can not automatically convert from
> > GRBG10.. and if it could, going through RGB24 would probably be too
> > slow on this device :-(.
>
> I suspect it shouldn't be hard to add support for GRBG10. It already
> supports 8 and 16 bits Bayer formats, at lib/lib
Hi!
> > > Please don't add a new application under lib/. It is fine if you want
> > > some testing application, if the ones there aren't enough, but please
> > > place it under contrib/test/.
> > >
> > > You should likely take a look at v4l2grab first, as it could have
> > > almost everything you
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 solveab
Hi!
> > > > For focus to be useful, we need autofocus implmented
> > > > somewhere. Unfortunately, v4l framework does not seem to provide good
> > > > place where to put autofocus. I believe, long-term, we'll need some
> > > > kind of "video server" providing this kind of services.
> > > >
> > >
Em Tue, 25 Apr 2017 00:07:01 +0200
Pavel Machek escreveu:
> Hi!
>
> > Please don't add a new application under lib/. It is fine if you want
> > some testing application, if the ones there aren't enough, but please
> > place it under contrib/test/.
> >
> > You should likely take a look at v4l2gr
Em Mon, 24 Apr 2017 23:29:14 +0200
Pavel Machek escreveu:
> Hi!
>
> > > For focus to be useful, we need autofocus implmented
> > > somewhere. Unfortunately, v4l framework does not seem to provide good
> > > place where to put autofocus. I believe, long-term, we'll need some
> > > kind of "video
Hi!
> Please don't add a new application under lib/. It is fine if you want
> some testing application, if the ones there aren't enough, but please
> place it under contrib/test/.
>
> You should likely take a look at v4l2grab first, as it could have
> almost everything you would need.
I really n
Hi!
> > For focus to be useful, we need autofocus implmented
> > somewhere. Unfortunately, v4l framework does not seem to provide good
> > place where to put autofocus. I believe, long-term, we'll need some
> > kind of "video server" providing this kind of services.
> >
> > Anyway, we probably do
Hi Pavel,
Em Mon, 24 Apr 2017 11:30:59 +0200
Pavel Machek escreveu:
> Hi!
>
> For focus to be useful, we need autofocus implmented
> somewhere. Unfortunately, v4l framework does not seem to provide good
> place where to put autofocus. I believe, long-term, we'll need some
> kind of "video serve
Hi!
For focus to be useful, we need autofocus implmented
somewhere. Unfortunately, v4l framework does not seem to provide good
place where to put autofocus. I believe, long-term, we'll need some
kind of "video server" providing this kind of services.
Anyway, we probably don't want autofocus in ke
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