Payload Working Group P. Westin
Internet-Draft H. Lundin
Intended status: Standards Track M. Glover
Expires: July 20, 2013 J. Uberti
F. Galligan
Google
January 16, 2013
RTP Payload Format for VP8 Video
draft-ietf-payload-vp8-08
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-
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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 July 20, 2013.
Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
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include Simplified BSD License text as described in Section 4.e of
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions, Definitions and Acronyms . . . . . . . . . . . . 4
3. Media Format Description . . . . . . . . . . . . . . . . . . . 5
4. Payload Format . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. RTP Header Usage . . . . . . . . . . . . . . . . . . . . . 6
4.2. VP8 Payload Descriptor . . . . . . . . . . . . . . . . . . 7
4.3. VP8 Payload Header . . . . . . . . . . . . . . . . . . . . 10
4.4. Aggregated and Fragmented Payloads . . . . . . . . . . . . 11
4.5. Examples of VP8 RTP Stream . . . . . . . . . . . . . . . . 13
4.5.1. Key frame in a single RTP packet . . . . . . . . . . . 13
4.5.2. Non-discardable VP8 interframe in a single RTP
packet; no PictureID . . . . . . . . . . . . . . . . . 13
4.5.3. VP8 partitions in separate RTP packets . . . . . . . . 14
4.5.4. VP8 frame fragmented across RTP packets . . . . . . . 15
4.5.5. VP8 frame with long PictureID . . . . . . . . . . . . 17
5. Using VP8 with RPSI and SLI Feedback . . . . . . . . . . . . . 18
5.1. RPSI . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2. SLI . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3. Example . . . . . . . . . . . . . . . . . . . . . . . . . 19
6. Payload Format Parameters . . . . . . . . . . . . . . . . . . 22
6.1. Media Type Definition . . . . . . . . . . . . . . . . . . 22
6.2. SDP Parameters . . . . . . . . . . . . . . . . . . . . . . 23
6.2.1. Mapping of MIME Parameters to SDP . . . . . . . . . . 23
6.2.2. Offer/Answer Considerations . . . . . . . . . . . . . 23
7. Security Considerations . . . . . . . . . . . . . . . . . . . 25
8. Congestion Control . . . . . . . . . . . . . . . . . . . . . . 26
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 27
10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 29
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1. Introduction
This memo describes an RTP payload specification applicable to the
datatracker.ietf.org