Video Codec Testing and Quality Measurement
draft-ietf-netvc-testing-02

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Document Type Active Internet-Draft (netvc WG)
Last updated 2016-03-15
Replaces draft-daede-netvc-testing
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Network Working Group                                           T. Daede
Internet-Draft                                                   Mozilla
Intended status: Informational                                 A. Norkin
Expires: September 16, 2016                                      Netflix
                                                          March 15, 2016

              Video Codec Testing and Quality Measurement
                      draft-ietf-netvc-testing-02

Abstract

   This document describes guidelines and procedures for evaluating a
   video codec specified at the IETF.  This covers subjective and
   objective tests, test conditions, and materials used for the test.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on September 16, 2016.

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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   (http://trustee.ietf.org/license-info) in effect on the date of
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Daede & Norkin         Expires September 16, 2016               [Page 1]
Internet-Draft Video Codec Testing and Quality Measurement    March 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Subjective quality tests  . . . . . . . . . . . . . . . . . .   3
     2.1.  Still Image Pair Comparison . . . . . . . . . . . . . . .   3
     2.2.  Subjective viewing test . . . . . . . . . . . . . . . . .   3
     2.3.  Expert viewing  . . . . . . . . . . . . . . . . . . . . .   3
   3.  Objective Metrics . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Overall PSNR  . . . . . . . . . . . . . . . . . . . . . .   4
     3.2.  Frame-averaged PSNR . . . . . . . . . . . . . . . . . . .   4
     3.3.  PSNR-HVS-M  . . . . . . . . . . . . . . . . . . . . . . .   5
     3.4.  SSIM  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.5.  Multi-Scale SSIM  . . . . . . . . . . . . . . . . . . . .   5
     3.6.  Fast Multi-Scale SSIM . . . . . . . . . . . . . . . . . .   5
     3.7.  CIEDE2000 . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.8.  VMAF  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Comparing and Interpreting Results  . . . . . . . . . . . . .   6
     4.1.  Graphing  . . . . . . . . . . . . . . . . . . . . . . . .   6
     4.2.  Bjontegaard . . . . . . . . . . . . . . . . . . . . . . .   6
     4.3.  Ranges  . . . . . . . . . . . . . . . . . . . . . . . . .   7
   5.  Test Sequences  . . . . . . . . . . . . . . . . . . . . . . .   7
     5.1.  Sources . . . . . . . . . . . . . . . . . . . . . . . . .   7
     5.2.  Test Sets . . . . . . . . . . . . . . . . . . . . . . . .   7
     5.3.  Operating Points  . . . . . . . . . . . . . . . . . . . .   8
       5.3.1.  Common settings . . . . . . . . . . . . . . . . . . .   8
       5.3.2.  High Latency CQP  . . . . . . . . . . . . . . . . . .   8
       5.3.3.  Low Latency CQP . . . . . . . . . . . . . . . . . . .   9
       5.3.4.  Unconstrained High Latency  . . . . . . . . . . . . .   9
       5.3.5.  Unconstrained Low Latency . . . . . . . . . . . . . .   9
   6.  Automation  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     6.1.  Regression tests  . . . . . . . . . . . . . . . . . . . .  10
     6.2.  Objective performance tests . . . . . . . . . . . . . . .  10
     6.3.  Periodic tests  . . . . . . . . . . . . . . . . . . . . .  11
   7.  Informative References  . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   When developing a video codec, changes and additions to the codec
   need to be decided based on their performance tradeoffs.  In
   addition, measurements are needed to determine when the codec has met
   its performance goals.  This document specifies how the tests are to
   be carried about to ensure valid comparisons when evaluating changes
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