Return-Path: 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 3CB7121F855F for ; Fri, 12 Oct 2012 04:06:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.127 X-Spam-Level: X-Spam-Status: No, score=-6.127 tagged_above=-999 required=5 tests=[AWL=0.122, BAYES_00=-2.599, HELO_EQ_SE=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1NZcH0jHQQJJ for ; Fri, 12 Oct 2012 04:06:48 -0700 (PDT) Received: from mailgw2.ericsson.se (mailgw2.ericsson.se [193.180.251.37]) by ietfa.amsl.com (Postfix) with ESMTP id E077421F857E for ; Fri, 12 Oct 2012 04:06:47 -0700 (PDT) X-AuditID: c1b4fb25-b7f956d0000011c3-de-5077f9c67551 Received: from esessmw0247.eemea.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw2.ericsson.se (Symantec Mail Security) with SMTP id AD.B4.04547.6C9F7705; Fri, 12 Oct 2012 13:06:46 +0200 (CEST) Received: from ESESSCMS0356.eemea.ericsson.se ([169.254.1.243]) by esessmw0247.eemea.ericsson.se ([153.88.115.93]) with mapi; Fri, 12 Oct 2012 13:06:46 +0200 From: Christer Holmberg To: Harald Alvestrand Date: Fri, 12 Oct 2012 13:06:44 +0200 Thread-Topic: AW: AW: AW: How does mmt grouping work with multiple streams of the same type? Thread-Index: Ac2oZnYt4eIueylWQgScJlv09tAWAQAAuN0A Message-ID: <7F2072F1E0DE894DA4B517B93C6A0585340BDCF0FE@ESESSCMS0356.eemea.ericsson.se> References: <5076CC50.7000103@alvestrand.no> <5076DB5F.5030205@alvestrand.no> <5076E2AB.2070507@alvestrand.no> <5077D873.20103@alvestrand.no> <7F2072F1E0DE894DA4B517B93C6A0585340BDCF0B9@ESESSCMS0356.eemea.ericsson.se> <5077F462.4070306@alvestrand.no> In-Reply-To: <5077F462.4070306@alvestrand.no> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrNLMWRmVeSWpSXmKPExsUyM+Jvre6xn+UBBidPKVkc6+tis9i/+Dyz xdTlj1ksdm2vcWDxuDLhCqvHkiU/mTxu3H7P7NH27A57AEsUl01Kak5mWWqRvl0CV8bsFY9Z CyazVcyevJqxgfEJSxcjJ4eEgIlEW9t1RghbTOLCvfVsXYxcHEICpxglrs18xAySEBJYyCjx 8kNdFyMHB5uAhUT3P22QsIiAjsTD/Q1MIDazQJ3EgfuLwMpZBFQlJiy+CRYXFoiV2Pl2AStE fZzEhgvvoWwjib0f5rKD2LwC4RL/Zs1ihth7l0Xi+I8fYAlOAV2JN0sugw1iBDru+6k1UMvE JW49mc8EcbSAxJI955khbFGJl4//sULUi0rcaV/PCFGvI7Fg9yc2CFtbYtnC18wQiwUlTs58 wjKBUWwWkrGzkLTMQtIyC0nLAkaWVYzCuYmZOenlRnqpRZnJxcX5eXrFqZsYgRF2cMtv1R2M d86JHGKU5mBREue13rrHX0ggPbEkNTs1tSC1KL6oNCe1+BAjEwenVAMj4+0jb6T/MybUb92z Jbxp4YbWg46Tal3f5+s8DumYdO7ACXaxE5c1NK3PX5OTc0g17c7VubYt70SUilO4Wsi89VId yt/55BZv/rj5mEzT+jlHOYUWM9x8cqlFrnHaiqJpIR4zL7qfNmDretD5PcjBQ8WO2XyuZ2yk nbajbWyAxPplzO7zfzMpsRRnJBpqMRcVJwIAM+/zEX4CAAA= Cc: Jonathan Lennox , mmusic WG Subject: Re: [MMUSIC] How does mmt grouping work with multiple streams of the same type? X-BeenThere: mmusic@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Multiparty Multimedia Session Control Working Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Oct 2012 11:06:49 -0000 Hi, >> Then, you will use the SSRC attribute to identify the streams. But, we=20 >> do need to define how to associate SSRCs with media types and/or=20 >> payload types. In one of your e-mails, you suggested to extend the=20 >> mmtype attribute. That's for sure one possibility.=20 > > If you need to know this before you start getting media, we need signalli= ng. > > Otherwise, we just look at the PT field and the SSRC field in the incomin= g packets. Correct. I guess we can add it as an open issue whether one needs to be able to sign= al it. But, again, the possibility to associate PTs with SSRCs is not BUNDLE speci= fic. You may want it also when you have multiple streams (same media type) = associated with a single m- line. Regards, Christer