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RTP Payload Format for MPEG-4 Audio/Visual Streams
RFC 6416

Internet Engineering Task Force (IETF)                        M. Schmidt
Request for Comments: 6416                            Dolby Laboratories
Obsoletes: 3016                                               F. de Bont
Category: Standards Track                            Philips Electronics
ISSN: 2070-1721                                                S. Doehla
                                                          Fraunhofer IIS
                                                                  J. Kim
                                                     LG Electronics Inc.
                                                            October 2011

           RTP Payload Format for MPEG-4 Audio/Visual Streams

Abstract

   This document describes Real-time Transport Protocol (RTP) payload
   formats for carrying each of MPEG-4 Audio and MPEG-4 Visual
   bitstreams without using MPEG-4 Systems.  This document obsoletes RFC
   3016.  It contains a summary of changes from RFC 3016 and discusses
   backward compatibility to RFC 3016.  It is a necessary revision of
   RFC 3016 in order to correct misalignments with the 3GPP Packet-
   switched Streaming Service (PSS) specification regarding the RTP
   payload format for MPEG-4 Audio.

   For the purpose of directly mapping MPEG-4 Audio/Visual bitstreams
   onto RTP packets, this document provides specifications for the use
   of RTP header fields and also specifies fragmentation rules.  It also
   provides specifications for Media Type registration and the use of
   the Session Description Protocol (SDP).  The audio payload format
   described in this document has some limitations related to the
   signaling of audio codec parameters for the required multiplexing
   format.  Therefore, new system designs should utilize RFC 3640, which
   does not have these restrictions.  Nevertheless, this revision of RFC
   3016 is provided to update and complete the specification and to
   enable interoperable implementations.

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.

Schmidt, et al.              Standards Track                    [Page 1]
RFC 6416          RTP Payload Format for MPEG-4 Streams     October 2011

   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/rfc6416.

Copyright Notice

   Copyright (c) 2011 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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Schmidt, et al.              Standards Track                    [Page 2]
RFC 6416          RTP Payload Format for MPEG-4 Streams     October 2011

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  MPEG-4 Visual RTP Payload Format . . . . . . . . . . . . .  4
     1.2.  MPEG-4 Audio RTP Payload Format  . . . . . . . . . . . . .  5
     1.3.  Interoperability with RFC 3016 . . . . . . . . . . . . . .  6
     1.4.  Relation with RFC 3640 . . . . . . . . . . . . . . . . . .  6
   2.  Definitions and Abbreviations  . . . . . . . . . . . . . . . .  6
   3.  Clarifications on Specifying Codec Configurations for

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