Hi All,
I've sorted it out. Anyone reading this thread in the future who is experiencing the same problem will have the peram video-muxing-personal-canvas set in conference flags while layout is set to 1x1. video-muxing-personal-canvas is designed for layouts showing several people at the same time - when implementing this the concept of the floor doesn't really apply as this peram does it for you. Setting the layout to 1x1 means it places all of these canvases on top of each other, hence the flicker and CPU usage.
So I've tested again and this time it looks like individual cores are maxing out (it's showing 332%), which it wasn't doing previously. I only have two users and since switching to MUX I have a decent processor.

On Feb 28, 2018, at 5:07 AM, Dom Rumsey <domrumsey@hotmail.com> wrote:
No it doesn’t. So in a 3 way chat, for the person speaking, it shows their own video feed back to themself. The other two people (who are listening) see a flicker of the video feeds from both the speaker and the other listener. It's as if there's a paradox, I just can't work out what it is.
Looked at CPU and we still have +70% left. Network is also fine, got loads of bandwidth left.
Thanks
On Feb 27, 2018, at 5:01 PM, Michael Jerris <mike@jerris.com> wrote:only other thing i can think of would be some sort of resource starvation, cpu or network. Does it do the same without personal canvas?
On Feb 27, 2018, at 11:53 AM, Dom Rumsey < domrumsey@hotmail.com> wrote:
Thanks Mike. I'm using 1.6.20.
From: FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org> on behalf of Michael Jerris <mike@jerris.com>
Sent: Tuesday, February 27, 2018 4:24 PM
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] Conference mux mode video flickeringThe flickering sounds like an old fixed bug we had with overlap and zoom layouts. Are you using old code?
On Feb 26, 2018, at 3:57 PM, Dom Rumsey < domrumsey@hotmail.com> wrote:
Hi guys
Thanks for your help previously.
I'm now using MUX mode for video and I'm getting a problem whereby a conference with 3 or more participants keeps flickering video streams on the floor (we are using video-muxing-personal-canvas parameter). It's as if it can't decide who to show. Below is my conference profile:
< profile name = "cp" >< param name = "domain" value = "$${domain}" />< param name = "rate" value = "8000" />< param name = "video-mode" value = "mux" />< param name = "video-layout-name" value = "1x1" />< param name = "interval" value = "20" />< param name = "caller-controls" value = "default" />< param name = "energy-level" value = "0" />< param name = "video-auto-floor-msec" value = "3000" />< param name = "video_no_video_avatar_png" value = "/usr/local/freeswitch/conf/images/video-muted.png" />< param name = "video_mute_png" value = "/usr/local/freeswitch/conf/images/video-muted.png" />< param name = "conference-flags" value = "audio-always|livearray-sync|livearray-json-status|video-mute-exit-canvas|video-muxing-personal-canvas" /> <!-- video-bridge-first-two|video-muxing-personal-canvas -->< param name = "max-members" value = "25" />< param name = "sound-prefix" value = "/usr/local/freeswitch/conf/sounds/" />< param name = "enter-sound" value = "tone_stream://%(200,0,500,600,700)" />< param name = "exit-sound" value = "tone_stream://%(500,0,300,200,100,50,25)" />< param name = "inbound-late-negotiation" value = "false" /></ profile >
Any pointers on where I'm going wrong would be really appreciated.
Thank you