RTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG2 Transport Stream (TS) Program Specific Information (PSI) Decodability Statistics Metrics Reporting
RFC 7380

Document Type RFC - Proposed Standard (November 2014; No errata)
Last updated 2015-10-14
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Internet Engineering Task Force (IETF)                           J. Tong
Request for Comments: 7380                                    C. Bi, Ed.
Category: Standards Track                                  China Telecom
ISSN: 2070-1721                                                  R. Even
                                                              Q. Wu, Ed.
                                                                R. Huang
                                                                  Huawei
                                                           November 2014

    RTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG2
 Transport Stream (TS) Program Specific Information (PSI) Decodability
                      Statistics Metrics Reporting

Abstract

   An MPEG2 Transport Stream (TS) is a standard container format used in
   the transmission and storage of multimedia data.  Unicast/multicast
   MPEG2 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 MPEG2 TS decodability statistics metrics
   related to transmissions of MPEG2 TS over RTP.  The metrics specified
   in the RTCP XR block are related to Program Specific Information
   (PSI) carried in MPEG 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/rfc7380.

Tong, et al.                 Standards Track                    [Page 1]
RFC 7380                 RTCP XR TS Decodability           November 2014

Copyright Notice

   Copyright (c) 2014 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. MPEG2 Transport Stream Decodability Metrics ................3
      1.2. RTCP and RTCP XR Reports ...................................3
      1.3. Performance Metrics Framework ..............................3
      1.4. Applicability ..............................................3
   2. Terminology .....................................................4
      2.1. Standards Language .........................................4
   3. MPEG2 TS PSI Decodability Statistics Metrics Block ..............4
   4. SDP Signaling ...................................................8
      4.1. SDP rtcp-xr-attrib Attribute Extension .....................8
      4.2. Offer/Answer Usage .........................................8
      4.3. Usage Outside of Offer/Answer ..............................8
   5. IANA Considerations .............................................9
      5.1. New RTCP XR Block Type Value ...............................9
      5.2. New RTCP XR SDP Parameter ..................................9
      5.3. Contact Information for Registrations ......................9
   6. Security Considerations .........................................9
   7. References ......................................................9
      7.1. Normative References .......................................9
      7.2. Informative References ....................................10
  Authors' Addresses .................................................11

Tong, et al.                 Standards Track                    [Page 2]
RFC 7380                 RTCP XR TS Decodability           November 2014

1.  Introduction

1.1.  MPEG2 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 MPEG2 Transport Streams [ISO-IEC.13818-1.2007].  The
   tests and corresponding indicators are grouped according to priority:

   First priority:  Necessary for decodability (basic monitoring)

   Second priority:  Recommended for continuous or periodic monitoring
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