The xvc video codec
draft-samuelsson-netvc-xvc-01

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Network Working Group                                      J. Samuelsson
Internet-Draft                                             P. Hermansson
Intended status: Standards Track                                Divideon
Expires: January 3, 2019                                    July 2, 2018

                          The xvc video codec
                     draft-samuelsson-netvc-xvc-01

Abstract

   This document presents a high-level technical description of the xvc
   video codec.  The xvc video codec is a novel video codec that was
   released in its first version in September 2017.  This document
   provides some technical information as well as a discussion section
   around how the xvc codec meets the objectives of the NETVC Working
   Group.  The document also includes results comparing the second
   version of xvc with AV1 and HM for three different test cases; All-
   Intra, single pass Random-Access, and multi-pass Random-Access.
   Results are also presented for the full xvc codec relative to the
   royalty-free baseline profile of xvc.

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Samuelsson & Hermansson  Expires January 3, 2019                [Page 1]
Internet-Draft             The xvc video codec                 July 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Technical overview of the xvc video codec . . . . . . . . . .   3
     2.1.  Block structure . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Intra prediction  . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Inter prediction  . . . . . . . . . . . . . . . . . . . .   5
     2.4.  Transforms  . . . . . . . . . . . . . . . . . . . . . . .   5
     2.5.  Quantization  . . . . . . . . . . . . . . . . . . . . . .   5
     2.6.  Entropy coding  . . . . . . . . . . . . . . . . . . . . .   6
     2.7.  In-loop filtering . . . . . . . . . . . . . . . . . . . .   6
     2.8.  Restriction flags . . . . . . . . . . . . . . . . . . . .   6
     2.9.  Version handling  . . . . . . . . . . . . . . . . . . . .  10
     2.10. Temporal scalability and parallel decoding  . . . . . . .  11
     2.11. Parallel encoding . . . . . . . . . . . . . . . . . . . .  12
     2.12. Baseline profile  . . . . . . . . . . . . . . . . . . . .  12
   3.  The xvc reference software  . . . . . . . . . . . . . . . . .  12
   4.  Results . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
     4.1.  All-Intra . . . . . . . . . . . . . . . . . . . . . . . .  14
     4.2.  Single pass Random-Access . . . . . . . . . . . . . . . .  14
     4.3.  Multi-pass Random-Access  . . . . . . . . . . . . . . . .  15
     4.4.  Full xvc relative to baseline xvc for single pass Random-
           Access  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     4.5.  Full xvc relative to baseline xvc for multi-pass Random-
           Access  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     4.6.  Computational complexity  . . . . . . . . . . . . . . . .  16
   5.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .  16
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

   In September 2017, the new video compression format xvc was released,
   with source code publicly available at xvc.io [xvcio].  The xvc codec
   is a software-defined video codec with conformance for bitstreams,
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