ISO/IEC 23094-4:2022

Information technology — General video coding — Part 4: Conformance and reference software for essential video coding

This document specifies a set of tests and procedures designed to indicate whether encoders or decoders essential video coding (EVC), which contains tests and a reference software designed to verify whether bitstreams and decoders meet normative requirements specified in ISO/IEC 23094-1. An encoder can claim conformance to ISO/IEC 23094-1 if the bitstreams that it generates are conforming bitstreams. Characteristics of coded bitstreams and decoders are defined in ISO/IEC 23094-1. Decoder characteristics define the properties and capabilities of the applied decoding process. The capabilities of a decoder specify which bitstreams the decoder can decode and reconstruct. A bitstream can be decoded by a decoder if the characteristics of the bitstream are within the specified decoder capabilities.

Technologies de l'information — Codage vidéo général — Partie 4: Conformité et logiciel de référence pour le codage vidéo essentiel

General Information

• Status: Published
• Publication Date: 07-Feb-2022
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29/WG 4 - MPEG Video coding
• Current Stage: 6060 - International Standard published
• Start Date: 31-Jan-2022
• Due Date: 22-Oct-2021
• Completion Date: 08-Feb-2022

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 23094-4
First edition
2022-01
Information technology — General
video coding —
Part 4:
Conformance and reference software
for essential video coding
Technologies de l'information — Codage vidéo général —
Partie 4: Conformité et logiciel de référence pour le codage vidéo
essentiel
Reference number
ISO/IEC 23094-4:2022(E)
© ISO/IEC 2022

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ISO/IEC 23094-4:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC 23094-4:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Conventions . 2
6 Conformance testing for ISO/IEC 23094-1 . 2
6.1 Introduction . 2
6.2 Bitstream conformance . 2
6.3 Decoder conformance . 2
6.4 Procedure to test bitstreams . 2
6.5 Procedure to test decoder conformance . 3
6.5.1 Conformance bitstreams . 3
6.5.2 Contents of the bitstream file . 3
6.5.3 Requirements on output of the decoding process and timing . 3
6.5.4 Recommendations. 4
6.5.5 Static tests for output order conformance . 4
6.5.6 Dynamic tests for output timing conformance . 4
6.5.7 Decoder conformance test of a particular profile and level . 5
6.6 Specification of the test bitstreams . 5
6.6.1 General .
...

FINAL
INTERNATIONAL ISO/IEC
DRAFT
STANDARD FDIS
23094-4
ISO/IEC JTC 1/SC 29
Information technology — General
Secretariat: JISC
video coding —
Voting begins on:
2021-10-05
Part 4:
Voting terminates on:
Conformance and reference software
2021-11-30
for essential video coding
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/IEC FDIS 23094-4:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO/IEC 2021

---------------------- Page: 1 ----------------------
ISO/IEC FDIS 23094-4:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC FDIS 23094-4:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Conventions . 2
6 Conformance testing for ISO/IEC 23094-1 . 2
6.1 Introduction . 2
6.2 Bitstream conformance . 2
6.3 Decoder conformance . 2
6.4 Procedure to test bitstreams . 2
6.5 Procedure to test decoder conformance . 3
6.5.1 Conformance bitstreams . 3
6.5.2 Contents of the bitstream file . 3
6.5.3 Requirements on output of the decoding process and timing . 3
6.5.4 Recommendations. 4
6.5.5 Static tests for output order conformance . 4
6.5.6 Dynamic tests for output timing conforma
...