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The issue isn't really encoding but bandwidth, specifically upload bandwidth (due to needing to send your own stream to all n-1 other participants rather than just one SFU, which then fans out to n streams).

Many popular group video call solutions are end-to-end encrypted these days, so there isn't any re-encoding happening.



>Many popular group video call solutions are end-to-end encrypted these days, so there isn't any re-encoding happening.

What format do you think an end2end encrypted video comes in over the wire?


SRTP, in most cases, at least for point-to-point encryption.

I'm not too sure about end-to-end encryption in WebRTC, though; I remember reading that something different happens there [1].

[1] https://webrtchacks.com/you-dont-have-end-to-end-encryption-... and https://webrtchacks.com/true-end-to-end-encryption-with-webr...




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