simulcast type for Chrome

Alexander Abagian

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Feb 1, 2021, 7:02:08 AM2/1/21

to meetecho-janus

Hi,

Could anyone tell, which type of simulcast does last Janus use for Chrome ?

Rid-based or ssrc-based ?

Thanks

Mirko Brankovic

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Feb 1, 2021, 9:22:47 AM2/1/21

to meetecho-janus

Unified plan was selected by IETF so that is the way Janus also went, so I guess rid based.

Probably has some backwards compatibility for good old Chrome :D

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Regards,

Mirko

Lorenzo Miniero

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Feb 2, 2021, 6:00:03 AM2/2/21

to meetecho-janus

That's a malformed question: Janus as a server supports both, what you use on the *client* side is up to you.

https://www.meetecho.com/blog/simulcast-janus-ssrc/

L.

Alexander Abagian

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Feb 2, 2021, 5:12:51 PM2/2/21

to meetecho-janus

I've seen the article, that's why I'm asking here. This example is a p2p mode, and a conference demo doesn't take simulcast2=true flag.

I also could make Chrome work in p2p rid-simulcast, but failed with multi-parties. You sure Janus is OK in it ?

Lorenzo Miniero

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Feb 3, 2021, 4:03:07 AM2/3/21

to meetecho-janus

What example is a p2p mode? Definitely not anything I've written in the blog post. The VideoRoom demo *does* support that query string argument (as does the EchoTest for instance), so you may want to try again.

L.

Alexander Abagian

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Feb 3, 2021, 11:06:00 AM2/3/21

to Lorenzo Miniero, meetecho-janus

Thanks a lot, Lorenzo.

I meant echotest demo as p2p. Now I really could force VideoRoom demo to use simulcast2. Janus seems to be exploring an architecture which sets a separate RTCPeerConnection for each participant, and THIS participant always uses Offer for setLocalDescription(), where rid-simulcast is proven to be workable.

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