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RTP Profile for Audio and Video Conferences with Minimal Control (RFC3551)

IP.com Disclosure Number: IPCOM000018626D
Original Publication Date: 2003-Jul-01
Included in the Prior Art Database: 2003-Jul-29

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

H. Schulzrinne: AUTHOR [+2]

Abstract

This document describes a profile called "RTP/AVP" for the use of the real-time transport protocol (RTP), version 2, and the associated control protocol, RTCP, within audio and video multiparticipant conferences with minimal control. It provides interpretations of generic fields within the RTP specification suitable for audio and video conferences. In particular, this document defines a set of default mappings from payload type numbers to encodings.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 3% of the total text.

Network Working Group                                     H. Schulzrinne

Request for Comments: 3551                           Columbia University

Obsoletes: 1890                                                S. Casner

Category: Standards Track                                  Packet Design

                                                               July 2003

              RTP Profile for Audio and Video Conferences

                          with Minimal Control

Status of this Memo

   This document specifies an Internet standards track protocol for the

   Internet community, and requests discussion and suggestions for

   improvements.  Please refer to the current edition of the "Internet

   Official Protocol Standards" (STD 1) for the standardization state

   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   This document describes a profile called "RTP/AVP" for the use of the

   real-time transport protocol (RTP), version 2, and the associated

   control protocol, RTCP, within audio and video multiparticipant

   conferences with minimal control.  It provides interpretations of

   generic fields within the RTP specification suitable for audio and

   video conferences.  In particular, this document defines a set of

   default mappings from payload type numbers to encodings.

   This document also describes how audio and video data may be carried

   within RTP.  It defines a set of standard encodings and their names

   when used within RTP.  The descriptions provide pointers to reference

   implementations and the detailed standards.  This document is meant

   as an aid for implementors of audio, video and other real-time

   multimedia applications.

   This memorandum obsoletes RFC 1890.  It is mostly backwards-

   compatible except for functions removed because two interoperable

   implementations were not found.  The additions to RFC 1890 codify

   existing practice in the use of payload formats under this profile

   and include new payload formats defined since RFC 1890 was published.

Schulzrinne & Casner        Standards Track                     [Page 1]

RFC 3551                    RTP A/V Profile                    July 2003

Table of Contents

   1.  Introduction .................................................  3

       1.1  Terminology .............................................  3

   2.  RTP and RTCP Packet Forms and Protocol Behavior ..............  4

   3.  Registering Additional Encodings .............................  6

   4.  Audio ........................................................®..