RTCP XR Report Block for Concealment metrics Reporting on Audio Applications
draft-ietf-xrblock-rtcp-xr-loss-conceal-12

Audio/Video Transport Working Group                             A. Clark
Internet-Draft                                                  Telchemy
Intended status: Standards Track                                 G. Zorn
Expires: October 13, 2014                                    Network Zen
                                                                   C. Bi
                                                                   STTRI
                                                              Q. Wu, Ed.
                                                                  Huawei
                                                          April 11, 2014

    RTCP XR Report Block for Concealment metrics Reporting on Audio
                              Applications
             draft-ietf-xrblock-rtcp-xr-loss-conceal-12.txt

Abstract

   This document defines two RTCP XR Report Blocks that allows the
   reporting of concealment metrics for audio applications of RTP.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Loss Concealment and Concealment Seconds Metrics
           Reporting Block  . . . . . . . . . . . . . . . . . . . . .  3
     1.2.  RTCP and RTCP XR Reports . . . . . . . . . . . . . . . . .  4
     1.3.  Performance Metrics Framework  . . . . . . . . . . . . . .  4
     1.4.  Applicability  . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  5
     2.1.  Standards Language . . . . . . . . . . . . . . . . . . . .  5
     2.2.  Notations  . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Loss Concealment Block . . . . . . . . . . . . . . . . . . . .  6
     3.1.  Report Block Structure . . . . . . . . . . . . . . . . . .  6
     3.2.  Definition of Fields in Loss Concealment Metrics Block . .  6
   4.  Concealment Seconds Block  . . . . . . . . . . . . . . . . . . 11
     4.1.  Report Block Structure . . . . . . . . . . . . . . . . . . 11
     4.2.  Definition of Fields in Concealed Seconds Metrics Block  . 12
   5.  SDP Signaling  . . . . . . . . . . . . . . . . . . . . . . . . 16
     5.1.  SDP rtcp-xr-attrib Attribute Extension . . . . . . . . . . 16
     5.2.  Offer/Answer Usage . . . . . . . . . . . . . . . . . . . . 16
   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 17
     6.1.  New RTCP XR Block Type values  . . . . . . . . . . . . . . 17
     6.2.  New RTCP XR SDP Parameters . . . . . . . . . . . . . . . . 17
     6.3.  Contact information for registrations  . . . . . . . . . . 17
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 18
   8.  Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 19
   9.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 20
   10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 21
     10.1. Normative References . . . . . . . . . . . . . . . . . . . 21
     10.2. Informative References . . . . . . . . . . . . . . . . . . 21
   Appendix A.  Metrics represented using RFC6390 Template  . . . . . 22
   Appendix B.  Change Log  . . . . . . . . . . . . . . . . . . . . . 29
     B.1.  draft-ietf-xrblock-rtcp-xr-loss-conceal-11 . . . . . . . . 29
     B.2.  draft-ietf-xrblock-rtcp-xr-loss-conceal-09 . . . . . . . . 29