Re: [rtcweb] Proposed Plan for Usage of SDP and RTP - Lower level API minus SDP

"Matthew Kaufman (SKYPE)" <matthew.kaufman@skype.net> Fri, 08 March 2013 14:57 UTC

Return-Path: <matthew.kaufman@skype.net>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BC7AC21F8732 for <rtcweb@ietfa.amsl.com>; Fri, 8 Mar 2013 06:57:54 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.299
X-Spam-Level:
X-Spam-Status: No, score=-2.299 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, MIME_8BIT_HEADER=0.3]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MMcYVCmWPwnS for <rtcweb@ietfa.amsl.com>; Fri, 8 Mar 2013 06:57:54 -0800 (PST)
Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2lp0203.outbound.protection.outlook.com [207.46.163.203]) by ietfa.amsl.com (Postfix) with ESMTP id 173BB21F871E for <rtcweb@ietf.org>; Fri, 8 Mar 2013 06:57:54 -0800 (PST)
Received: from BL2FFO11FD010.protection.gbl (10.173.161.203) by BL2FFO11HUB021.protection.gbl (10.173.161.45) with Microsoft SMTP Server (TLS) id 15.0.620.12; Fri, 8 Mar 2013 14:57:48 +0000
Received: from TK5EX14HUBC101.redmond.corp.microsoft.com (131.107.125.37) by BL2FFO11FD010.mail.protection.outlook.com (10.173.161.16) with Microsoft SMTP Server (TLS) id 15.0.620.12 via Frontend Transport; Fri, 8 Mar 2013 14:57:48 +0000
Received: from TK5EX14MBXC272.redmond.corp.microsoft.com ([169.254.2.76]) by TK5EX14HUBC101.redmond.corp.microsoft.com ([157.54.7.153]) with mapi id 14.02.0318.003; Fri, 8 Mar 2013 14:57:31 +0000
From: "Matthew Kaufman (SKYPE)" <matthew.kaufman@skype.net>
To: Peter Thatcher <pthatcher@google.com>, Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com>
Thread-Topic: [rtcweb] Proposed Plan for Usage of SDP and RTP - Lower level API minus SDP
Thread-Index: AQHOG99cNdIHhEwrJ0yj3rXtTeVDRpibz/yAgAAEBQCAAADbAIAADXHw
Date: Fri, 08 Mar 2013 14:57:30 +0000
Message-ID: <AE1A6B5FD507DC4FB3C5166F3A05A4841620CC28@tk5ex14mbxc272.redmond.corp.microsoft.com>
References: <CD5D3F35.B22B%robin@hookflash.com> <5139AF4C.70109@ericsson.com> <CAJrXDUFJBhvTzOcAhYPhEg9qgi8yZyFt-UeF60K7esA0+1v=PQ@mail.gmail.com> <5139EFF8.7040603@ericsson.com> <CAJrXDUFh0MtS3M6xvwvNBoY1EG6GKBGAoiKWHcOSrzZ1_mLWYw@mail.gmail.com>
In-Reply-To: <CAJrXDUFh0MtS3M6xvwvNBoY1EG6GKBGAoiKWHcOSrzZ1_mLWYw@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [157.54.51.34]
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Forefront-Antispam-Report: CIP:131.107.125.37; CTRY:US; IPV:CAL; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(51704002)(189002)(199002)(77982001)(4396001)(76482001)(53806001)(55846006)(74662001)(33656001)(54356001)(59766001)(47736001)(50986001)(56776001)(47976001)(23676001)(51856001)(47776003)(47446002)(79102001)(65816001)(66066001)(54316002)(74502001)(50466001)(44976002)(31966008)(63696002)(56816002)(20776003)(46102001)(80022001)(49866001)(69226001)(16406001); DIR:OUT; SFP:; SCL:1; SRVR:BL2FFO11HUB021; H:TK5EX14HUBC101.redmond.corp.microsoft.com; RD:InfoDomainNonexistent; MX:1; A:1; LANG:en;
X-OriginatorOrg: microsoft.onmicrosoft.com
X-Forefront-PRVS: 077929D941
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Proposed Plan for Usage of SDP and RTP - Lower level API minus SDP
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 08 Mar 2013 14:57:54 -0000

Peter Thatcher:
> 
> Is the blob format defined by the IETF or the W3C?  If the W3C decided not to
> use SDP as the blob, or not to use blobs at all, what would that mean for the
> IETF?

The W3C has apparently deferred to the IETF for everything, including what codecs should be mandatory and what the JavaScript API should look like.

Why this is the case, I don't know, but eventually there will be a W3C specification and it will contain a bunch of references to other specs and those either will or will not be acceptable to the W3C WG as a complete API.

Matthew Kaufman