Re: [rtcweb] AVPF [was: Encryption mandate (and offer/answer)]

["Timothy B. Terriberry" <[e-mail]>]

> * The level of media protection to use (NONE, SDES-SRTP or DTLS-SRTP) should be set by the web app

Why wouldn't this devolve to, "Don't communicate anything. Instead, try 
to create a PeerConnection with DTLS-SRTP, and when that fails, try to 
create a second one with NONE," in the actual webapp.

Or, more likely, since NONE will have a better chance of working with 
legacy devices, "Try to create a PeerConnection with NONE, and when that 
fails, try to create a second one with DTLS-SRTP." Assuming anyone 
bothers with the second step. Having the choice of SDES-SRTP or 
DTLS-SRTP will also make it more likely people won't bother with either, 
as they won't know which one to use. We can try to create incentives 
with browser chrome, but there's only so much that can do.