Re: [MMUSIC] Change Alert [Re: Modifying an approved document: MSID]

I am in favor of the change.

On Thu, Jan 26, 2017 at 5:54 AM, Flemming Andreasen <fandreas@cisco.com>
wrote:

> Hi Harald
>
> Since the document is not yet in Auth48 and the change is relatively
> minor, it is possible to update it during Auth48.
>
> However, from an MMUSIC chair point of view, I would like to get positive
> confirmation from some of the stakeholders that this change is indeed
> desired. Similarly, if anybody has any concerns with the suggested change,
> please send an e-mail to that effect.
>
> Thanks
>
> -- Flemming (as MMUSIC co-chair)
>
>
>
> On 1/23/17 10:18 AM, Harald Alvestrand wrote:
>
>> Den 19. jan. 2017 13:31, skrev Harald Alvestrand:
>>
>>> Ted pointed out to me that I sent this to the wrong group.
>>>
>>> Chairs and members, please advise.
>>>
>> My proposed change is here:
>>
>> https://github.com/alvestrand/rtcweb-msid/pull/16
>>
>> The filed issue is here:
>>
>> https://github.com/alvestrand/rtcweb-msid/issues/15
>>
>> (CCing RTCWEB - please keep discussion, if any, on mmusic)
>>
>>
>>>
>>> -------- Forwarded Message --------
>>> Subject:        [rtcweb] Modifying an approved document: MSID
>>> Date:   Wed, 18 Jan 2017 23:22:14 +0100
>>> From:   Harald Alvestrand <harald@alvestrand.no>
>>> To:     rtcweb@ietf.org <rtcweb@ietf.org>
>>>
>>>
>>>
>>> When reviewing the implications of the PeerConnection API change to
>>> support AddTrack rather than AddStream, I found an issue.
>>>
>>> This issue concerns draft-ietf-rtcweb-msid, which is currently in
>>> REF-WAIT state (I believe).
>>>
>>> The issue is that it is possible to add a track without specifying a
>>> stream. Since the track's ID needs to be carried, we have to send an
>>> "a=msid" line, but the track's ID is the *second* field on that line,
>>> with the first being the stream's ID.
>>>
>>> This creates a problem.
>>>
>>> Suggested fix: Insert two lines in the document:
>>>
>>> 1) On SDP generation:
>>>
>>> "If there is no stream associated with the track, use the reserved ID
>>> value '-'"
>>>
>>> 2) On SDP parsing
>>>
>>> "If the stream ID is the reserved value '-', the track is not associated
>>> with a stream, and no stream is signalled or created."
>>>
>>> If this is OK with the community, I'll issue an updated draft with this
>>> change.
>>>
>>>
>>> --
>>> Surveillance is pervasive. Go Dark.
>>>
>>> _______________________________________________
>>> rtcweb mailing list
>>> rtcweb@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtcweb
>>>
>>>
>>>
>>> _______________________________________________
>>> mmusic mailing list
>>> mmusic@ietf.org
>>> https://www.ietf.org/mailman/listinfo/mmusic
>>>
>>> _______________________________________________
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>> mmusic@ietf.org
>> https://www.ietf.org/mailman/listinfo/mmusic
>> .
>>
>>
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