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

[Gonzalo Gasca Meza]

Hi Chad,
Can you share more details about your network topology and server specs and
statistics (CPU type/Memory/Packets in/out) during an active conference.
I had similar problems when my FS was in AWS EC2, but moving it to local VM
in our network improved a lot.
We had ~7-10 participants using both FF and Chrome using around 4 vCPU/16
GB RAM/1 GB RAM with LAN QoS (RTP prioritization).

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
>>>
>>
>
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