RTP/RTCP extension for RTP Splicing Notification
draft-ietf-avtext-splicing-notification-09

Document Type Active Internet-Draft (avtext WG)
Last updated 2016-08-11 (latest revision 2016-08-03)
Replaces draft-xia-avtext-splicing-notification
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication Nov 2015
Document shepherd Jonathan Lennox
Shepherd write-up Show (last changed 2015-10-20)
IESG IESG state RFC Ed Queue
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Responsible AD Ben Campbell
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IANA IANA review state Version Changed - Review Needed
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AVTEXT Working Group                                              J. Xia
INTERNET-DRAFT                                                   R. Even
Intended Status: Standards Track                                R. Huang
Expires: February 4, 2017                                         Huawei
                                                                 L. Deng
                                                            China Mobile
                                                          August 3, 2016

            RTP/RTCP extension for RTP Splicing Notification
               draft-ietf-avtext-splicing-notification-09

Abstract

   Content splicing is a process that replaces the content of a main
   multimedia stream with other multimedia content, and delivers the
   substitutive multimedia content to the receivers for a period of
   time. The splicer is designed to handle RTP splicing and needs to
   know when to start and end the splicing.

   This memo defines two RTP/RTCP extensions to indicate the splicing
   related information to the splicer: an RTP header extension that
   conveys the information in-band and an RTCP packet that conveys the
   information out-of-band.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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Xia                     Expires February 4, 2017                [Page 1]
INTERNET DRAFT         RTP Splicing Notification          August 3, 2016

Copyright and License Notice

   Copyright (c) 2016 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
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   described in the Simplified BSD License.

Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  3
   2  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     2.1 Overview of RTP Splicing . . . . . . . . . . . . . . . . . .  4
     2.2 Overview of Splicing Interval  . . . . . . . . . . . . . . .  5
   3  Conveying Splicing Interval in RTP/RTCP extensions  . . . . . .  5
     3.1 RTP Header Extension . . . . . . . . . . . . . . . . . . . .  5
     3.2 RTCP Splicing Notification Message . . . . . . . . . . . . .  6
   4  Reducing Splicing Latency . . . . . . . . . . . . . . . . . . .  7
   5  Failure Cases . . . . . . . . . . . . . . . . . . . . . . . . .  8
   6 SDP Signaling  . . . . . . . . . . . . . . . . . . . . . . . . .  8
     6.1 Declarative SDP  . . . . . . . . . . . . . . . . . . . . . .  9
     6.2 Offer/Answer without BUNDLE  . . . . . . . . . . . . . . . .  9
     6.3 Offer/Answer with BUNDLE: All Media are spliced  . . . . . . 10
     6.4 Offer/Answer with BUNDLE: a Subset of Media are Spliced  . . 12
   7  Security Considerations . . . . . . . . . . . . . . . . . . . . 13
   8  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 14
     8.1  RTCP Control Packet Types . . . . . . . . . . . . . . . . . 14
     8.2  RTP Compact Header Extensions . . . . . . . . . . . . . . . 14
     8.3 SDP Grouping Semantic Extension  . . . . . . . . . . . . . . 14
   9 Acknowledges . . . . . . . . . . . . . . . . . . . . . . . . . . 15
   10  References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     10.1  Normative References . . . . . . . . . . . . . . . . . . . 15
     10.2  Informative References . . . . . . . . . . . . . . . . . . 15
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 16

 

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INTERNET DRAFT         RTP Splicing Notification          August 3, 2016
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