Re: [Ekiga-list] résolution webcam

[adhesionlistedediffusion <adhesionlistedediffusion chpv fr>]

But a resolution of 704x576 is already a good resolution, DVD quality, 
and perhaps sufficient for my use, and anyway I will use it :)


Le 25/02/2016 09:38, adhesionlistedediffusion a écrit :
> Hello,
>
> Thank you very much Bret for your answers. Yes indeed, you are right 
> to point the specifications, there is a limitation of 704x576 with 
> version 4.0.
>
> My material can support better quality : data transmission is LAN 
> 100Mb/s or internet 8Mb/s SDSL, and pc HP Probook 450 G1 bought in 
> 2014. The webcam can give a resolution up to 1920 x 1080 pixels. With 
> cheese, recording a video at this resolution is rather fluid, it's 
> quite ok. (Curiously, Cheese give the possibility to choose 2304x1536 
> but it totally lags, only showing in the screen, whitout even recording).
>
> I can not use skype for reasons of confidentiality.
>
> Well, I think that I have to wait for the version 5.0. How can we get 
> news about it ?
>
> Thanks
>
> --
> JL
>
>
> Le 23/02/2016 19:26, Bret Busby a écrit :
> > On 24/02/2016, Bret Busby <bret busby gmail com> wrote:
> > > On 24/02/2016, Bret Busby <bret busby gmail com> wrote:
> > > > On 23/02/2016, adhesionlistedediffusion
> > > > <adhesionlistedediffusion chpv fr> wrote:
> > > > > Hello,
> > > > >
> > > > > Sorry, here is the translation : in the video options of Ekiga, my
> > > > > webcam is limited to 704x576, but in the software "cheese" it can 
> > > > > reach
> > > > > 1920x1080.
> > > > > How can I have a better resolution with Ekiga ?
> > > > > Debian 8, Ekiga 4.0.1, et webcam Logitech C930e.
> > > > >
> > > > > Thanks
> > > > >
> > > > > JL
> > > > Hello.
> > > >
> > > > This is not an answer to your question, but, rather, a question of
> > > > your question.
> > > >
> > > > I have a Logitech webcam thing that shows as having 720p (1280x720?)
> > > > capability, but, with the computer or the broadband limitations, or
> > > > both, I find that I have to use it at a lesser resolution (640x480, I
> > > > think, or, less), to get some sort of fluidity and realtime movement,
> > > > otherwise, I get lagging and a series of still frames and jerkiness,
> > > > rather than fluid motion.
> > > >
> > > >  From what I understand, (and, I am quite probably wrong), the higher
> > > > resolutions are not good, for applications like Ekiga and Skype.
> > > >
> > > > I have just used cheese to record a video, with my Logitech webcam,
> > > > and vlc showed the resolution to be 1280x960, and the motion was jerky
> > > > and not fluid.
> > > >
> > > > I do not know what hardware, you have, or, what your data transmission
> > > > rates are like, but this computer that I am using, has an i3 CPU, and,
> > > > I think, an nVIDIA graphics thing with about 512MB of RAM (on the
> > > > graphics thing - the computer has, I think, 16GB of RAM), and I have
> > > > found that webcam resolution of more than 640x480, is too much for
> > > > getting useful video.
> > > >
> > > > So, I am wondering whether it is worth you trying to get the high
> > > > resolution of your webcam capability (1920x1080), for video, if the
> > > > video processing, would not give you fluid motion for that resolution.
> > > >
> > > > You may have hardware, and, data transmission rates, that can
> > > > accommodate the high resolution capability of your webcam, and give
> > > > you a sufficient fps, to attain adequate fluidity of motion - I do not
> > > > know.
> > > >
> > > > At this stage, I have not yet, been able to effect a successful video
> > > > call with Ekiga - I have only been able to effect successful video
> > > > calls, with skype.
> > > >
> > > > --
> > > >
> > > > Bret Busby
> > > > Armadale
> > > > West Australia
> > > >
> > > > ..............
> > > >
> > > > "So once you do know what the question actually is,
> > > >   you'll know what the answer means."
> > > > - Deep Thought,
> > > >   Chapter 28 of Book 1 of
> > > >   "The Hitchhiker's Guide to the Galaxy:
> > > >   A Trilogy In Four Parts",
> > > >   written by Douglas Adams,
> > > >   published by Pan Books, 1992
> > > >
> > > > ....................................................
> > > I just checked, with changing the configuration of cheese, to get a
> > > 640x480 videoclip, and, while the voice/video sync, was not quite
> > > right, the motion was sufficiently fluid, and I could not get that,
> > > with the 1280x960 resolution.
> > >
> > > Also, in using the 1280x720 resolution, I found that the video and the
> > > voice/video sync, seemed to work okay.
> > >
> > > I do not know - maybe, your computer and your bandwidth, may be able
> > > to work well enough, with your 1920x1080 resolution, in video.
> > Also, I note that what you want, is apparently beyond the capability 
> > of Ekiga.
> >
> > In checking in my Ekiga on this computer (Ekiga v 4.0.1), the highest
> > available video resolution, is 704x576.
> >
> > In checking the specifications for Ekiga, at
> > http://ekiga.org/ekiga-softphone-features
> > is
> >
> > "
> > Video  Version 4.0
> >   High Framerate support (up to 30 fps)
> >   Configurable Resolution, up to DVD quality (from 176x144 to 704x576)
> > "
> >
> > so, the 704x576 resolution, is, apparently, the highest resolution,
> > currently available for Ekiga.
> >
> > I think that skype might be able to give the resolution that you seek
> > - I do not know. I have skype 4.3 on this computer, and I can not find
> > how to adjust the video resolution from the webcam. From memory, I had
> > been able to do that, when skype 2.2 beta for Linux, was available,
> > years ago, but I can not find how to do it, now.
>
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