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

Harald Alvestrand <harald@alvestrand.no> Fri, 27 January 2017 17:15 UTC

Return-Path: <harald@alvestrand.no>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5038112969F; Fri, 27 Jan 2017 09:15:01 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.099
X-Spam-Level:
X-Spam-Status: No, score=-5.099 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-3.199] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1hbo5CZD6nkE; Fri, 27 Jan 2017 09:14:59 -0800 (PST)
Received: from mork.alvestrand.no (mork.alvestrand.no [IPv6:2001:700:1:2::117]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AE66A12969C; Fri, 27 Jan 2017 09:14:58 -0800 (PST)
Received: from localhost (localhost [127.0.0.1]) by mork.alvestrand.no (Postfix) with ESMTP id 7F2D97C5256; Fri, 27 Jan 2017 18:14:56 +0100 (CET)
X-Virus-Scanned: Debian amavisd-new at alvestrand.no
Received: from mork.alvestrand.no ([127.0.0.1]) by localhost (mork.alvestrand.no [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UFgXdJ7IafPg; Fri, 27 Jan 2017 18:14:33 +0100 (CET)
Received: from [IPv6:2001:470:de0a:1:c145:37:d66e:9253] (unknown [IPv6:2001:470:de0a:1:c145:37:d66e:9253]) by mork.alvestrand.no (Postfix) with ESMTPSA id 228507C5255; Fri, 27 Jan 2017 18:14:32 +0100 (CET)
To: Flemming Andreasen <fandreas@cisco.com>, mmusic@ietf.org
References: <24b5eee4-29b1-33b0-ecea-58c766636311@alvestrand.no> <50b49dbf-7de1-a7c4-923f-f702ac14215e@alvestrand.no> <0df3cbb0-a3e7-011c-c4d5-63aad9350283@alvestrand.no> <e4d73f68-4e70-05f9-bfc8-4429210c5313@cisco.com>
From: Harald Alvestrand <harald@alvestrand.no>
Message-ID: <1df9ff00-e8e3-661a-9646-a4a8a6d8b3f8@alvestrand.no>
Date: Fri, 27 Jan 2017 18:14:31 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1
MIME-Version: 1.0
In-Reply-To: <e4d73f68-4e70-05f9-bfc8-4429210c5313@cisco.com>
Content-Type: text/plain; charset="windows-1252"
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/mmusic/bv2Ah75R5veIfgUA-fTv92mYPm0>
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [MMUSIC] Change Alert [Re: Modifying an approved document: MSID]
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Multiparty Multimedia Session Control Working Group <mmusic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mmusic>, <mailto:mmusic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mmusic/>
List-Post: <mailto:mmusic@ietf.org>
List-Help: <mailto:mmusic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mmusic>, <mailto:mmusic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 27 Jan 2017 17:15:01 -0000

On 01/26/2017 02:54 PM, Flemming Andreasen 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.

Would it also be OK to submit an updated draft, so that the RFC Editor
doesn't have to waste time incorporating the changes?

>
> 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.

I have poked a few people to give their opinion. Will poke again.

>
> 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
>>>
>> _______________________________________________
>> mmusic mailing list
>> mmusic@ietf.org
>> https://www.ietf.org/mailman/listinfo/mmusic
>> .
>>
>


-- 
Surveillance is pervasive. Go Dark.