datatracker.ietf.org
Sign in
Version 5.6.4, 2014-10-13
Report a bug

RTP Payload Format for IP-MR Speech Codec
RFC 6262

Internet Engineering Task Force (IETF)                         S. Ikonin
Request for Comments: 6262                                    SPIRIT DSP
Category: Standards Track                                    August 2011
ISSN: 2070-1721

               RTP Payload Format for IP-MR Speech Codec

Abstract

   This document specifies the payload format for packetization of
   SPIRIT IP-MR encoded speech signals into the Real-time Transport
   Protocol (RTP).  The payload format supports transmission of multiple
   frames per packet and introduces redundancy for robustness against
   packet loss and bit errors.

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.

   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/rfc6262.

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

Ikonin                       Standards Track                    [Page 1]
RFC 6262       RTP Payload Format for IP-MR Speech Codec     August 2011

   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.

Table of Contents

   1. Introduction ....................................................2
   2. IP-MR Codec Description .........................................3
   3. Payload Format ..................................................4
      3.1. RTP Header Usage ...........................................4
      3.2. RTP Payload Structure ......................................4
      3.3. Speech Payload Header ......................................5
      3.4. Speech Payload Table of Contents ...........................6
      3.5. Speech Payload Data ........................................6
      3.6. Redundancy Payload Header ..................................7
      3.7. Redundancy Payload Table of Contents .......................8
      3.8. Redundancy Payload Data ....................................8
   4. Payload Examples ................................................9
      4.1. Payload Carrying a Single Frame ............................9
      4.2. Payload Carrying Multiple Frames with Redundancy ..........10
   5. Congestion Control .............................................11
   6. Security Considerations ........................................12
   7. Payload Format Parameters ......................................13
      7.1. Media Type Registration ...................................13
      7.2. Mapping Media Type Parameters into SDP ....................14
   8. IANA Considerations ............................................14
   9. Normative References ...........................................15
   Appendix A. Retrieving Frame Information ..........................16
      A.1. get_frame_info.c ..........................................16

1.  Introduction

   This document specifies the payload format for packetization of
   SPIRIT IP-MR encoded speech signals into the Real-time Transport
   Protocol (RTP).  The payload format supports transmission of multiple
   frames per packet and introduces redundancy for robustness against
   packet loss and bit errors.

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",

[include full document text]