[Freeswitch-users] More pixelated video canvas on larger number of users

[Chad Phillips]

Mike, it’s the same if I remove video-codec-bandwidth and video-quality.
This short video illustrates the issue: https://youtu.be/l8gpHhgmWRI

Notice how with just my feed the quality is much better than with the
multiple feeds. The pixelation effect seems to periodically ‘wash over’ the
entire canvas. I’ve had many users report this same issue, even if they
have excellent internet bandwidth.

Gonzalo, I’ve got a quite beefy physical server, Xeon 32 core, 32GB RAM,
and a nice fat network pipe. I haven’t ever pulled stats on packets in/out.

On Wed, Oct 12, 2016 at 8:48 AM, Michael Jerris <mike at jerris.com> wrote:

> is it the same if you remove the following:
>
>       <param name="video-codec-bandwidth" value="1mb"/>
>
>       <param name="video-quality" value="1"/>
>
>
>
> ?
>
> On Oct 12, 2016, at 11:37 AM, Chad Phillips <chad at apartmentlines.com>
> wrote:
>
> Ok, I tested in Firefox, same pixelation issue. One or two video feeds
> looks good, then it degrades as more feeds are added.
>
> Here are the relevant params from my conference config:
>
>       <param name="video-canvas-size" value="1080x720"/>
>       <param name="video-codec-bandwidth" value="1mb"/>
>       <param name="video-auto-floor-msec" value="800"/>
>       <param name="video-kps-debounce" value="30000"/>
>       <param name="video-fps" value="30"/>
>       <param name="video-quality" value="1"/>
>
> On Mon, Oct 10, 2016 at 1:29 PM, Ítalo Rossi <italo at freeswitch.org> wrote:
>
>> In which browser?
>>
>> On Mon, Oct 10, 2016 at 1:51 PM, Chad Phillips <chad at apartmentlines.com>
>> wrote:
>>
>>> Running Verto/mod_conference videoconference on 1.6.11, I’ve noticed
>>> that the entire canvas resolution seems more pixelated when the number of
>>> users connected to the videoconference goes up.
>>>
>>> If just one person is connected, the image is very consistent and clear,
>>> but getting into the 7-10 person range, the quality drops noticeably. And
>>> I’m not talking about the quality of one particular video on the canvas,
>>> but the entire canvas quality.
>>>
>>> I’ve done a recording of a videoconference on the server with a larger
>>> number of users, and the video quality there is clear and consistent, so it
>>> doesn’t seem to be an issue with either receiving or muxing the feeds, but
>>> in how the end user is receiving the muxed video.
>>>
>>> I tried playing with the the ‘video-quality’ and ‘video-codec-bandwidth’
>>> conference params — increasing the video-quality from 1 to 3 didn’t seem to
>>> have much of an impact, increasing the video-codec-bandwidth from 1mb to
>>> 2mb used quite a bit more CPU, but didn’t seem to positively impact the
>>> video quality, either.
>>>
>>> Curious if I’m missing something in the config, or if there’s something
>>> else I can do to improve the video quality with a larger number of users.
>>>
>>> Chad
>>>
>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20161012/df720b30/attachment.html