Re: [rtcweb] Summary of Application Developers' opinions of the current WebRTC API and SDP as a control surface

Justin Uberti <juberti@google.com> Fri, 19 July 2013 02:40 UTC

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From: Justin Uberti <juberti@google.com>
Date: Thu, 18 Jul 2013 22:40:20 -0400
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To: Bernard Aboba <bernard_aboba@hotmail.com>
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Cc: "<rtcweb@ietf.org>" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Summary of Application Developers' opinions of the current WebRTC API and SDP as a control surface
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Well, for the past 6+ months we haven't been able to agree on exactly how a
MediaStreamTrack should be represented in SDP, so it would have been
premature to try to write this stuff down.

That said, I agree this stuff needs to be fully defined, so that
applications can get predictable behavior. I also agree it will be a large
undertaking.


On Tue, Jul 16, 2013 at 8:30 PM, Bernard Aboba <bernard_aboba@hotmail.com>wrote:

> I would agree. Just pointing out that this issue was raised in December
> 2012, and it is now 6+ months later with little progress and more
> disgruntlement. So if there is motivation to fix this it probably would
> have manifested itself by now.
>
> On Jul 16, 2013, at 5:27 PM, "Silvia Pfeiffer" <silviapfeiffer1@gmail.com>;
> wrote:
>
> > The whole point of standardisation at the W3C is for browser to agree
> > on the knobs. So, I do think it's a valuable effort.
> > Cheers,
> > Silvia.
> >
> >
> > On Wed, Jul 17, 2013 at 10:15 AM, Bernard Aboba
> > <bernard_aboba@hotmail.com>; wrote:
> >> The problem was that we never defined what mangling browsers had to
> support. Given all the SDP specs that is actually a huge work item. And
> creating APIs to avoid mangling isn't actually that much simpler. What
> knobs do you provide and which ones do you ignore? Browsers might not agree
> on those either.
> >>
> >> On Jul 8, 2013, at 1:37 PM, "Stefan Håkansson LK" <
> stefan.lk.hakansson@ericsson.com>; wrote:
> >>
> >>> On 7/8/13 5:22 PM, Roman Shpount wrote:
> >>>
> >>>> So, was there ever a consensus that "developers MUST NOT
> >>>> touch SDP"?
> >>>
> >>> No, developers are free to touch the SDP (and probably must in certain
> >>> cases).
> >>>
> >>>>
> >>>> _____________
> >>>> Roman Shpount
> >>>
> >>> _______________________________________________
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> >>> rtcweb@ietf.org
> >>> https://www.ietf.org/mailman/listinfo/rtcweb
> >> _______________________________________________
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> >> rtcweb@ietf.org
> >> https://www.ietf.org/mailman/listinfo/rtcweb
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