Re: [rtcweb] confirming sense of the room: mti codec

Alexandre GOUAILLARD <agouaillard@gmail.com> Tue, 09 December 2014 02:41 UTC

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References: <E3FA0C72-48C5-465E-AE15-EB19D8D563A7@ieca.com> <54820E74.90201@mozilla.com> <5485E627.5050706@jesup.org> <CALiegfn0AH+2FKXJ2b3JWob-pETdD8fXS-OM0iq8p+txdq+mSQ@mail.gmail.com> <21E818AE-0F44-4BA1-AA59-8322C982446E@apple.com>
Date: Tue, 09 Dec 2014 10:41:41 +0800
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From: Alexandre GOUAILLARD <agouaillard@gmail.com>
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Subject: Re: [rtcweb] confirming sense of the room: mti codec
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I support the rough consensus as presented by the chair.

On Tue, Dec 9, 2014 at 9:19 AM, David Singer <singer@apple.com> wrote:

>
> > On Dec 8, 2014, at 10:00 , Iñaki Baz Castillo <ibc@aliax.net> wrote:
> >
> > 2014-12-08 18:55 GMT+01:00 Randell Jesup <randell-ietf@jesup.org>:
> >> +1 - it's by no means my preferred solution, but it's one I can live
> with,
> >> and better than the alternative of the status-quo - no MTI at all.  If
> it
> >> wasn't for OpenH264, my answer would be different.
> >>
> >> I can't see adopting H.264 as sole MTI, and I can't see that we'd get
> >> consensus to adopt VP8 as sole MTI.
> >
> > There was a much better solution:
> >
> > - Don't make VP8 nor H264 MTI.
> > - So for now no MTI video codec.
> > - And a W3C compromise: First video codec 100% royalty free would
> > become MTI in WebRTC.
> >
> > Things would be exactly as they are now, but at least we avoid a
> > "MUST" that will be ignored by 50% of the market.
>
> That would be more honest, indeed. It is effectively where we are going to
> be.  And it offers a carrot in the right direction.
>
> I am curious to know how many of the people supporting the proposed
> position actually would implement both encode and decode of both codecs?
> This follows from comments on this thread that people who feel they fall
> into a different category are asking others to solve their problem.
>
> So, rather than +1, please say “I would expect to implement both”
> (non-binding, of course) — it would be a more useful thing to see, I think.
>
>
>
> Another possible choice:
>
> * admit that we already have possible non-interoperability
> (WebRTC-compatible Endpoints that choose differently), and that anyone who
> doesn’t want to do both will say that this what they are making (as was
> suggested):  simply delete the requirement or definitions for WebRTC
> User-agent and Device. Nothing stops those that want to from implementing
> both, without or without the mandate.  I don’t think this would make any
> material difference to what happens, but it makes the spec and reality a
> little closer.
>
>
>
> Finally, I wonder, what would it be like if we actually tried to get
> closer to interop: ALL endpoints — anything that can operate at one end of
> a WebRTC session, be it device, UA, gateway, compatible-endpoint, whatever
> — must be able to decode (actually, offer to receive) both, and must be
> able to encode at least one?  I’d have to think about the consequences of
> doing decode-only, but it’s a loss less work than a decent encoder, for a
> start. This would result in interop if people actually did it.
>
>
> David Singer
> Manager, Software Standards, Apple Inc.
>
> _______________________________________________
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> rtcweb@ietf.org
> https://www.ietf.org/mailman/listinfo/rtcweb
>



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Alex. Gouaillard, PhD, PhD, MBA
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