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@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@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@freeswitch.org> wrote:
In which browser?

On Mon, Oct 10, 2016 at 1:51 PM, Chad Phillips <chad@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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