CLUE WG R. Even Internet-Draft Huawei Intended status: Informational October 15, 2012 Expires: April 18, 2013 Signalling of CLUE and SDP offer/answer draft-even-clue-sdp-clue-relation-00.txt Abstract This document describes the relation between the different CLUE attributes as specified in the CLUE framework and the SDP attrbutes. The document will discuss the issues with the CLUE call signalling in order to keep the consisyency bewteen the Offer/answer state and the CLUE state. Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on April 18, 2013. Copyright Notice Copyright (c) 2012 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Even Expires April 18, 2013 [Page 1] Internet-Draft SDP offer/answer and CLUE relation October 2012 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Capture attributes . . . . . . . . . . . . . . . . . . . . . . 3 3. Encoding parameters . . . . . . . . . . . . . . . . . . . . . . 3 4. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 3 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3 7. Security Considerations . . . . . . . . . . . . . . . . . . . . 3 8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4 8.1. Normative References . . . . . . . . . . . . . . . . . . . 4 8.2. Informative References . . . . . . . . . . . . . . . . . . 4 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 4 Even Expires April 18, 2013 [Page 2] Internet-Draft SDP offer/answer and CLUE relation October 2012 1. Introduction The CLUE framework[I-D.ietf-clue-framework] is used to specify the infirmation needed for creating a Telepresence call. The model includes the Media capture information providing information about content of the streams and can provide information about the spatial information between streams based on the capture point and area of capture. A capture scene includes media captures that are part of a same scene e.g. room capture or presentation. The other infprmation defined in the framework is the Encoding information providing information about the abilities of the providers to send streams allowing a consumer to configure a capture to a specific encoding. The next sections will look at the capture attributes and the encoding parameter and decsribe the realtion to SDP [RFC4566]. 2. Capture attributes 3. Encoding parameters 4. Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC2119[RFC2119] and indicate requirement levels for compliant RTP implementations. 5. Acknowledgements place holder 6. IANA Considerations TBD 7. Security Considerations TBD. Even Expires April 18, 2013 [Page 3] Internet-Draft SDP offer/answer and CLUE relation October 2012 8. References 8.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC3264] Rosenberg, J. and H. Schulzrinne, "An Offer/Answer Model with Session Description Protocol (SDP)", RFC 3264, June 2002. [RFC4566] Handley, M., Jacobson, V., and C. Perkins, "SDP: Session Description Protocol", RFC 4566, July 2006. 8.2. Informative References [I-D.ietf-clue-framework] Romanow, A., Duckworth, M., Pepperell, A., and B. Baldino, "Framework for Telepresence Multi-Streams", draft-ietf-clue-framework-06 (work in progress), July 2012. Author's Address Roni Even Huawei Tel Aviv, Israel Email: roni.even@mail01.huawei.com Even Expires April 18, 2013 [Page 4]