datatracker.ietf.org
Sign in
Version 5.6.4.p1, 2014-10-20
Report a bug

RTP Payload Format for VP8 Video
draft-ietf-payload-vp8-13

Payload Working Group                                          P. Westin
Internet-Draft                                                 H. Lundin
Intended status: Standards Track                               M. Glover
Expires: April 18, 2015                                        J. Uberti
                                                             F. Galligan
                                                                  Google
                                                        October 15, 2014

                    RTP Payload Format for VP8 Video
                       draft-ietf-payload-vp8-13

Abstract

   This memo describes an RTP payload format for the VP8 video codec.
   The payload format has wide applicability, as it supports
   applications from low bit-rate peer-to-peer usage, to high bit-rate
   video conferences.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 18, 2015.

Copyright Notice

   Copyright (c) 2014 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

Westin, et al.           Expires April 18, 2015                 [Page 1]
Internet-Draft         RTP Payload Format for VP8           October 2014

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions, Definitions and Acronyms . . . . . . . . . . . .   3
   3.  Media Format Description  . . . . . . . . . . . . . . . . . .   3
   4.  Payload Format  . . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  RTP Header Usage  . . . . . . . . . . . . . . . . . . . .   4
     4.2.  VP8 Payload Descriptor  . . . . . . . . . . . . . . . . .   6
     4.3.  VP8 Payload Header  . . . . . . . . . . . . . . . . . . .  10
     4.4.  Aggregated and Fragmented Payloads  . . . . . . . . . . .  11
     4.5.  Frame reconstruction algorithm  . . . . . . . . . . . . .  11
       4.5.1.  Partition reconstruction algorithm  . . . . . . . . .  12
     4.6.  Examples of VP8 RTP Stream  . . . . . . . . . . . . . . .  12
       4.6.1.  Key frame in a single RTP packet  . . . . . . . . . .  12
       4.6.2.  Non-discardable VP8 interframe in a single RTP
               packet; no PictureID  . . . . . . . . . . . . . . . .  13
       4.6.3.  VP8 partitions in separate RTP packets  . . . . . . .  14
       4.6.4.  VP8 frame fragmented across RTP packets . . . . . . .  15
       4.6.5.  VP8 frame with long PictureID . . . . . . . . . . . .  16
   5.  Using VP8 with RPSI and SLI Feedback  . . . . . . . . . . . .  17
     5.1.  RPSI  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
     5.2.  SLI . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
     5.3.  Example . . . . . . . . . . . . . . . . . . . . . . . . .  18
   6.  Payload Format Parameters . . . . . . . . . . . . . . . . . .  20
     6.1.  Media Type Definition . . . . . . . . . . . . . . . . . .  20
     6.2.  SDP Parameters  . . . . . . . . . . . . . . . . . . . . .  22
       6.2.1.  Mapping of Media Subtype Parameters to SDP  . . . . .  22
       6.2.2.  Offer/Answer Considerations . . . . . . . . . . . . .  22
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  23
   8.  Congestion Control  . . . . . . . . . . . . . . . . . . . . .  23
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  23
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  24
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  24

1.  Introduction

   This memo describes an RTP payload specification applicable to the
   transmission of video streams encoded using the VP8 video codec

[include full document text]