Re: [Ekiga-list] résolution webcam

[Bret Busby <bret busby gmail com>]

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.


-- 

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

....................................................