Re: résolution webcam

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 <[email protected]> wrote:
>> On 24/02/2016, Bret Busby <[email protected]> wrote:
>>> On 23/02/2016, adhesionlistedediffusion
>>> <[email protected]> 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.
>