Some Simlucast layers/streams not switching

[Akil]

Hi,

After reading your excellent blog post on simulcast , I was playing around with the echotest and videoroom demos on the janus website and notice that for simulcast, some of the layers/substreams do not get activated, on clicking the button to switch to them they are just stuck, is this field trial a possible cause?  I tried with both ?simulcast=true and ?simulcast2=true

I'm on Chrome 80 on Mac if it makes any difference. 

If this is normal behaviour where some layers/substreams cannot be switched to, is there are way to find out which layers are available and which are not.

Thank you,

Akil

[Lorenzo Miniero]

Yes, Chrome now only sends two temporal layers apparently, so you'll only get TL 0 and 1, not 2.

L.

[Akil]

Thanks for the clarification, 

I am seeing some weird behaviour with simulcast with the video room plugin and hope you could shed some light.

I am testing on the janus videoroom demo url with simulcast=true https://janus.conf.meetecho.com/videoroomtest.html?simulcast=true . When i publish and view the stream, only the substream S0 is available initially, when trying to change to S1, S2 , it just gets stuck. 

S1, S2 are not available for a long time(i tried switching to them for 4 mins and still both substreams were not available). Now if i restrict the bandwidth of the publishers to 2 Mbits, S1 is available after 10-30 seconds, S2 is available 10-20 seconds after S1 becomes available.

I tried with the echoroom plugin and all three substreams are available at start. I have tested with Chome 80 (Mac + Android), Firefox 74 (Mac)