Re: [rtcweb] Should we reference the pause/resume I-D?

Justin Uberti <juberti@google.com> Wed, 12 March 2014 20:56 UTC

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From: Justin Uberti <juberti@google.com>
Date: Wed, 12 Mar 2014 13:56:08 -0700
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To: Bernard Aboba <bernard.aboba@gmail.com>
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Subject: Re: [rtcweb] Should we reference the pause/resume I-D?
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Agreed. Aren't there also patent declarations against this doc from
multiple holders?

While SDP will likely be removed from the API in the future, the
replacement would be a app-specific message sent over websockets, which
seems like it would work just fine.


On Wed, Mar 12, 2014 at 12:50 PM, Bernard Aboba <bernard.aboba@gmail.com>wrote;wrote:

> While I do like the pause/resume draft, having core RTCWEB WG documents
> (such as RTP Usage) depend on it seems like a bit of a stretch. After all,
> the document was only adopted last week, and it is a rare IETF WG document
> that can go from a -00 WG draft to publication as an RFC in under a year.
>
>
> On Wed, Mar 12, 2014 at 11:01 AM, Stefan Håkansson LK <
> stefan.lk.hakansson@ericsson.com> wrote:
>
>> Hi,
>>
>> at the IETF last week there was consensus in the AVTEXT WG meeting to
>> adopt the pause/resume draft [1] as a WG draft.
>>
>> In rtcweb/webrtc we're have the situation that we're discussing so
>> called "doo-hickeys" as an API surface where the web app (amongst other
>> things) can pause and resume the sending of a track. This can
>> be signaled with the direction attribute and a SDP O/A exchange (and the
>> app pausing/resuming sending of a track would presumably lead to a
>> "negotiationneeded" event being fired).
>>
>> But I think we should in addition require the browser to signal it
>> according to one of the methods in [1] (e.g. TMMBN = 0), and also
>> understand that signaling (a browser receiving TMMBN = 0 must know that
>> the other end-point will pause sending).
>>
>> My argument is that we know that many dislike SDP in rtcweb, and a
>> likely development is that it will be removed in a later version. My
>> speculation is that signaling as outlined in [1] will then be used for
>> pause/resume. If we support this from the beginning earlier
>> implementations could more easily interop with those later versions.
>>
>>
>> Stefan
>>
>> [1]
>> https://tools.ietf.org/id/draft-westerlund-avtext-rtp-stream-pause-05.txt
>>
>> _______________________________________________
>> rtcweb mailing list
>> rtcweb@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtcweb
>>
>
>
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