RTP Payload Format for VP8 Video
draft-ietf-payload-vp8-15

 
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Last updated 2015-03-23
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Payload Working Group                                          P. Westin
Internet-Draft                                                 H. Lundin
Intended status: Standards Track                               M. Glover
Expires: September 24, 2015                                    J. Uberti
                                                             F. Galligan
                                                                  Google
                                                          March 23, 2015

                    RTP Payload Format for VP8 Video
                       draft-ietf-payload-vp8-15

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
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   Internet-Drafts are draft documents valid for a maximum of six months
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   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 September 24, 2015.

Copyright Notice

   Copyright (c) 2015 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
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   include Simplified BSD License text as described in Section 4.e of

Westin, et al.         Expires September 24, 2015               [Page 1]
Internet-Draft         RTP Payload Format for VP8             March 2015

   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 . . . . . . . . . . . . . . . . . . .  22
   8.  Congestion Control  . . . . . . . . . . . . . . . . . . . . .  23
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  23
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  23
     10.2.  Informative References . . . . . . . . . . . . . . . . .  24
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  24
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