CLUE WG M. Duckworth, Ed.
Internet Draft Polycom
Intended status: Informational A. Pepperell
Expires: November 16, 2013 Acano
S. Wenger
Vidyo
May 16, 2013
Framework for Telepresence Multi-Streams
draft-ietf-clue-framework-10.txt
Abstract
This document offers a framework for a protocol that enables
devices in a telepresence conference to interoperate by specifying
the relationships between multiple media streams.
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 November 16, 2013.
Copyright Notice
Copyright (c) 2013 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
Duckworth et. al. Expires November 16, 2013 [Page 1]
Internet-Draft CLUE Telepresence Framework May 2013
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.
Table of Contents
1. Introduction...................................................3
2. Terminology....................................................5
3. Definitions....................................................5
4. Overview of the Framework/Model................................8
5. Spatial Relationships.........................................13
6. Media Captures and Capture Scenes.............................14
6.1. Media Captures...........................................14
6.1.1. Media Capture Attributes............................15
6.2. Capture Scene............................................19
6.2.1. Capture Scene attributes............................22
6.2.2. Capture Scene Entry attributes......................22
6.3. Simultaneous Transmission Set Constraints................23
7. Encodings.....................................................25
7.1. Individual Encodings.....................................25
7.2. Encoding Group...........................................27
8. Associating Captures with Encoding Groups.....................28
9. Consumer's Choice of Streams to Receive from the Provider.....29
9.1. Local preference.........................................31
9.2. Physical simultaneity restrictions.......................31
9.3. Encoding and encoding group limits.......................32
10. Extensibility................................................32
11. Examples - Using the Framework...............................32
11.1. Provider Behavior.......................................33
11.1.1. Three screen Endpoint Provider.....................33
11.1.2. Encoding Group Example.............................40
11.1.3. The MCU Case.......................................41
11.2. Media Consumer Behavior.................................42
11.2.1. One screen Media Consumer..........................42
11.2.2. Two screen Media Consumer configuring the example..43
11.2.3. Three screen Media Consumer configuring the example43
12. Acknowledgements.............................................44
13. IANA Considerations..........................................44
14. Security Considerations......................................44
datatracker.ietf.org