Coding Tools for a Next Generation Video Codec
draft-terriberry-netvc-codingtools-01

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Replaces draft-terriberry-codingtools
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netvc                                                      T. Terriberry
Internet-Draft                                                   N. Egge
Intended status: Informational                       Mozilla Corporation
Expires: May 4, 2017                                    October 31, 2016

             Coding Tools for a Next Generation Video Codec
                 draft-terriberry-netvc-codingtools-01

Abstract

   This document proposes a number of coding tools that could be
   incorporated into a next-generation video codec.

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
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   This Internet-Draft will expire on May 4, 2017.

Copyright Notice

   Copyright (c) 2016 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
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   described in the Simplified BSD License.

Terriberry & Egge          Expires May 4, 2017                  [Page 1]
Internet-Draft                Coding Tools                  October 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Entropy Coding  . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Non-binary Arithmetic Coding  . . . . . . . . . . . . . .   4
     2.2.  Non-binary Context Modeling . . . . . . . . . . . . . . .   5
     2.3.  Dyadic Adaptation . . . . . . . . . . . . . . . . . . . .   6
     2.4.  Simplified Partition Function . . . . . . . . . . . . . .   9
       2.4.1.  Reduced-Overhead Partition Function . . . . . . . . .  10
     2.5.  Context Adaptation  . . . . . . . . . . . . . . . . . . .  11
       2.5.1.  Implicit Adaptation . . . . . . . . . . . . . . . . .  11
       2.5.2.  Explicit Adaptation . . . . . . . . . . . . . . . . .  12
       2.5.3.  Early Adaptation  . . . . . . . . . . . . . . . . . .  12
     2.6.  Simple Experiment . . . . . . . . . . . . . . . . . . . .  13
   3.  Reversible Integer Transforms . . . . . . . . . . . . . . . .  14
     3.1.  Lifting Steps . . . . . . . . . . . . . . . . . . . . . .  14
     3.2.  4-Point Transform . . . . . . . . . . . . . . . . . . . .  17
     3.3.  Larger Transforms . . . . . . . . . . . . . . . . . . . .  20
     3.4.  Walsh-Hadamard Transforms . . . . . . . . . . . . . . . .  20
   4.  Development Repository  . . . . . . . . . . . . . . . . . . .  22
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  22
   6.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  22
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  22
     7.1.  Informative References  . . . . . . . . . . . . . . . . .  22
     7.2.  URIs  . . . . . . . . . . . . . . . . . . . . . . . . . .  24
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  24

1.  Introduction

   One of the biggest contributing factors to the success of the
   Internet is that the underlying protocols are implementable on a
   royalty-free basis.  This allows them to be implemented widely and
   easily distributed by application developers, service operators, and
   end users, without asking for permission.  In order to produce a
   next-generation video codec that is competitive with the best patent-
   encumbered standards, yet avoids patents which are not available on
   an open-source compatible, royalty-free basis, we must use old coding
   tools in new ways and develop new coding tools.  This draft documents
   some of the tools we have been working on for inclusion in such a
   codec.  This is early work, and the performance of some of these
   tools (especially in relation to other approaches) is not yet fully
   known.  Nevertheless, it still serves to outline some possibilities
   an eventual working group, if formed, could consider.
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