Re: [rtcweb] JSEP question: How to set up simulcast for server-originated calls?

[Stefan Håkansson LK <[e-mail]>]

If memory serves, we originally had the model that the author of the
web app and the developer of the receiver of simulcast would cooperate,
in other words the simulcast receiver would send enough info (in form
of whatever) for the web app to correctly set up simulcast using the
available APIs and then send an offer SDP. I think this is what Inaki
is saying.

If this now has changed, and we can have the simulcast receiver send an
SDP offer that is applied in the browser and things work (perhaps with
some web app intervention), and we have people interested in
implementing this, I personally see no reason why that should not be
pursued.

Br, Stefan

On tis, 2018-11-06 at 22:09 -0500, Bernard Aboba wrote:
> Cullen said: 
> 
> "Let me put this as politely and straight forward as I can.  You are
> wrong."
> 
> [BA] I would agree that API interoperability is needed for simulcast,
> even if it doesn't yet exist because we're still ironing out the
> Issues.  The interest in implementation appears to be quite high, so
> once we figure these things out (assuming we make the specification
> clear enough to avoid further confusion), we stand a chance of
> interoperablity in both APIs and protocols, which is after all, the
> point of developing a standard. 
> 
> In that respect, I would prefer if JSEP would include some guidance
> we could cite in WebRTC-PC, rather than having to provide
> clarifications within the API document itself.
> 
> On Tue, Nov 6, 2018 at 9:15 PM Cullen Jennings <[e-mail]> wrote:
> > 
> > > On Nov 5, 2018, at 7:14 PM, Iñaki Baz Castillo <[e-mail]>
> > > wrote:
> > > 
> > > If you excluded the word "interop" from any rationale, life would
> > > be
> > > much better, specially here where such an interop:
> > > 
> > > 1) does not exist
> > > 2) is not needed
> > > 
> > > To be clear: No app in the world is or will be NEVER ready to
> > > enable
> > > simulcast auto-magically just because it eventually receives a
> > > different SDP offer from the remote. The app developers would
> > > already
> > > figured out different ways to enable simulcast that would just
> > > not
> > > allow such an auto-magic "upgrade".
> > > 
> > 
> > Let me put this as politely and straight forward as I can. You are
> > wrong. 
> > 
> > 
> > 
> > 
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