RFC 2354 (rfc2354) - Page 1 of 12
Options for Repair of Streaming Media
Alternative Format: Original Text Document
Network Working Group C. Perkins
Request for Comments: 2354 O. Hodson
Category: Informational University College London
June 1998
Options for Repair of Streaming Media
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (1998). All Rights Reserved.
Abstract
This document summarizes a range of possible techniques for the
repair of continuous media streams subject to packet loss. The
techniques discussed include redundant transmission, retransmission,
interleaving and forward error correction. The range of
applicability of these techniques is noted, together with the
protocol requirements and dependencies.
1 Introduction
A number of applications have emerged which use RTP/UDP transport to
deliver continuous media streams. Due to the unreliable nature of
UDP packet delivery, the quality of the received stream will be
adversely affected by packet loss. A number of techniques exist by
which the effects of packet loss may be repaired. These techniques
have a wide range of applicability and require varying degrees of
protocol support. In this document, a number of such techniques are
discussed, and recommendations for their applicability made.
It should be noted that this document is introductory in nature, and
does not attempt to be comprehensive. In particular, we restrict our
discussion to repair techniques which require the involvement of the
sender of a media stream, and do not discuss possibilities for
receiver based repair.
For a more detailed survey, the reader is referred to [5].
Perkins & Hodson Informational