Re: [MMUSIC] Simulcast draft feedback
Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 19 October 2015 22:07 UTC
Return-Path: <pkyzivat@alum.mit.edu>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 323F41B2D68 for <mmusic@ietfa.amsl.com>; Mon, 19 Oct 2015 15:07:45 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.635
X-Spam-Level:
X-Spam-Status: No, score=-0.635 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, J_CHICKENPOX_14=0.6, SPF_SOFTFAIL=0.665] autolearn=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 WsOVLFIayV0E for <mmusic@ietfa.amsl.com>; Mon, 19 Oct 2015 15:07:44 -0700 (PDT)
Received: from resqmta-ch2-11v.sys.comcast.net (resqmta-ch2-11v.sys.comcast.net [IPv6:2001:558:fe21:29:69:252:207:43]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 74AB71B2D5E for <mmusic@ietf.org>; Mon, 19 Oct 2015 15:07:44 -0700 (PDT)
Received: from resomta-ch2-05v.sys.comcast.net ([69.252.207.101]) by resqmta-ch2-11v.sys.comcast.net with comcast id XA6L1r0042Bo0NV01A7jrJ; Mon, 19 Oct 2015 22:07:43 +0000
Received: from Paul-Kyzivats-MacBook-Pro.local ([50.138.229.151]) by resomta-ch2-05v.sys.comcast.net with comcast id XA7j1r00B3Ge9ey01A7jGl; Mon, 19 Oct 2015 22:07:43 +0000
To: mmusic@ietf.org
References: <562550F9.2020101@gmail.com>
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
Message-ID: <562569AE.80309@alum.mit.edu>
Date: Mon, 19 Oct 2015 18:07:42 -0400
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
MIME-Version: 1.0
In-Reply-To: <562550F9.2020101@gmail.com>
Content-Type: text/plain; charset="windows-1252"; format="flowed"
Content-Transfer-Encoding: 7bit
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20140121; t=1445292463; bh=DlBo5BiGmQp2RwX/+tIwHZrBLYenYhljGNp5pHbLEjA=; h=Received:Received:Subject:To:From:Message-ID:Date:MIME-Version: Content-Type; b=vQ3l5w8POJK4APXniRkMduvssKMEppyNW9nQ8/2qWhBc65DD23TPgJM3eY+ERtVkJ D6kPx7Qm/zEQMdDH8F30LFNVcdQBZgsuXmIWJF1pOuL7zHowGCawx4GibCnzjbTmLH 4tfX8afiTyppdeRi1+mctMUvrBsWxpOMs6Wdxzxf3B3TOAgWDFdpRUQb3zvkWyiram NnITQcs6qAmJmEeu7fuPqyu6nJl6EWmUXeUuNmonAFlUxXG1lVbEHjAS7jbbnfzlg7 EAdYDfoZXhxJ3Z2osyqaPwmFr1lmgabyNJVAV3xB2qy9R1e0/L6WikJGpvTSt5UvOe 26hBytMBGwUfg==
Archived-At: <http://mailarchive.ietf.org/arch/msg/mmusic/8O_tcAeKXzioDlOWWgIpJEO5vBk>
Subject: Re: [MMUSIC] Simulcast draft feedback
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.15
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: Mon, 19 Oct 2015 22:07:45 -0000
On 10/19/15 4:22 PM, Byron Campen wrote: > **** Payload type asymmetry confusion **** > > Consider the following simulcast offer/answer exchange, where the > answerer removes a simulcast version and changes payload types: > > offer: > a=rtpmap:96 VP8/90000 > a=rtpmap:97 VP8/90000 > a=rtpmap:98 VP8/90000 > // a=fmtp that differ for the above three > a=simulcast: send pt=96;97;98 > > answer: > a=simulcast: recv pt=42;101 I don't understand. I think you need to provide more info. Did it change PTs in the m-line of the answer for codec configs the offerer called 96,97,98? Did it add more PTs not mentioned in the offer? Without knowing that I can't figure out what the above might mean. I agree this is murky. Thanks, Paul
- Re: [MMUSIC] Simulcast draft feedback Paul Kyzivat
- [MMUSIC] Simulcast draft feedback Byron Campen
- Re: [MMUSIC] Simulcast draft feedback Byron Campen
- Re: [MMUSIC] Simulcast draft feedback Mo Zanaty (mzanaty)