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RTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG-2 Transport Stream (TS) Program Specific Information (PSI) Independent Decodability Statistics Metrics Reporting
RFC 6990

Internet Engineering Task Force (IETF)                          R. Huang
Request for Comments: 6990                                         Q. Wu
Category: Standards Track                                         Huawei
ISSN: 2070-1721                                                H. Asaeda
                                                                    NICT
                                                                 G. Zorn
                                                             Network Zen
                                                             August 2013

   RTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG-2
  Transport Stream (TS) Program Specific Information (PSI) Independent
               Decodability Statistics Metrics Reporting

Abstract

   An MPEG-2 Transport Stream (TS) is a standard container format used
   in the transmission and storage of multimedia data.  Unicast/
   multicast MPEG-2 TS over RTP is widely deployed in IPTV systems.
   This document defines an RTP Control Protocol (RTCP) Extended Report
   (XR) block that allows the reporting of MPEG-2 TS decodability
   statistics metrics related to transmissions of MPEG-2 TS over RTP.
   The metrics specified in the RTCP XR block are not dependent on
   Program Specific Information (PSI) carried in MPEG-2 TS.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6990.

Huang, et al.                Standards Track                    [Page 1]
RFC 6990                 RTCP XR TS Decodability             August 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
   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
     1.1.  MPEG-2 Transport Stream Decodability Metrics  . . . . . .   3
     1.2.  RTCP and RTCP Extended Reports  . . . . . . . . . . . . .   3
     1.3.  Performance Metrics Framework . . . . . . . . . . . . . .   3
     1.4.  Applicability . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Standards Language  . . . . . . . . . . . . . . . . . . . . .   4
   3.  MPEG-2 TS PSI-Independent Decodability Statistics Metrics
       Block . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  SDP Signaling . . . . . . . . . . . . . . . . . . . . . . . .   8
     4.1.  SDP rtcp-xr Attribute Extension . . . . . . . . . . . . .   8
     4.2.  Offer/Answer Usage  . . . . . . . . . . . . . . . . . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  New RTCP XR Block Type Value  . . . . . . . . . . . . . .   8
     5.2.  New RTCP XR SDP Parameter . . . . . . . . . . . . . . . .   9
     5.3.  Contact Information for Registrations . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  10

Huang, et al.                Standards Track                    [Page 2]
RFC 6990                 RTCP XR TS Decodability             August 2013

1.  Introduction

1.1.  MPEG-2 Transport Stream Decodability Metrics

   The European Telecommunications Standards Institute (ETSI) has
   defined a set of syntax and information consistency tests and
   corresponding indicators [ETSI] that are recommended for the
   monitoring of MPEG-2 Transport Streams [ISO-IEC.13818-1.2013].  The
   tests and corresponding indicators are grouped according to priority:

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