WebRTC Video Processing and Codec Requirements
draft-ietf-rtcweb-video-00

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Document Type Active Internet-Draft (rtcweb WG)
Last updated 2014-07-01
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Stream WG state WG Document (wg milestone: Dec 2014 - Video Processing and... )
Document shepherd Sean Turner
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Network Working Group                                         A.B. Roach
Internet-Draft                                                   Mozilla
Intended status: Standards Track                           July 01, 2014
Expires: January 02, 2015

             WebRTC Video Processing and Codec Requirements
                       draft-ietf-rtcweb-video-00

Abstract

   This specification provides the requirements and consideration for
   WebRTC applications to send and receive video across a network.  It
   specifies the video processing that is required, codecs and their
   parameters, and types of RTP packetization that need to be supported.

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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   Drafts is at http://datatracker.ietf.org/drafts/current/.

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   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 January 02, 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
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   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.

Roach                   Expires January 02, 2015                [Page 1]
Internet-Draft                WebRTC Video                     July 2014

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Pre and Post Processing . . . . . . . . . . . . . . . . . . .   2
     3.1.  Camera Source Video . . . . . . . . . . . . . . . . . . .   3
     3.2.  Screen Source Video . . . . . . . . . . . . . . . . . . .   3
   4.  Codec Considerations  . . . . . . . . . . . . . . . . . . . .   3
     4.1.  VP8 . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     4.2.  H.264 . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     4.3.  VP9 . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     4.4.  H.265 . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Dealing with Packet Loss  . . . . . . . . . . . . . . . . . .   4
   6.  Mandatory to Implement Video Codec  . . . . . . . . . . . . .   4
     6.1.  Temperature of Working Group  . . . . . . . . . . . . . .   4
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   6
     10.2.  Informative References . . . . . . . . . . . . . . . . .   7
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   One of the major functions of WebRTC endpoints is the ability to send
   and receive interactive video.  The video might come from a camera, a
   screen recording, a stored file, or some other source.  This
   specification defines how the video is used and discusses special
   considerations for processing the video.  It also covers the video-
   related algorithms WebRTC devices need to support.

2.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

3.  Pre and Post Processing

   This section provides guidance on pre- or post-processing of video
   streams.

   Unless specified otherwise by the SDP or Codec, the color space
   SHOULD be TBD.

   TODO: What color space is our default?

Roach                   Expires January 02, 2015                [Page 2]
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3.1.  Camera Source Video

   To support a quality experience with no application level adjustment
   from the Javascript running in the browsers, WebRTC endpoints are
   REQUIRED to support:

   o  Automatic focus, if applicable for the camera in use

   o  Automatic white balance
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