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
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Without obtaining an adequate license from the person(s) controlling
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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
datatracker.ietf.org