ISO/IEC INTERNATIONAL 14496-22 STANDARD Fourth edition 2019-01 AMENDMENT 2 2023-01 Information technology Coding of audio-visual objects - Part 22: Open Font Format AMENDMENT 2: Extending colour font functionality and other updates Technologies de I'information - Codage des objets audiovisuels - Partie 22: Format de police de caracteres ouvert AMENDEMENT 2: Extension de la fonctionnalite des polices de couleuretautresmisesajour Reference number IS0/IEC 14496-22:2019/Amd. 2:2023(E) IEC ISO @ IS0/IEC 2023 IS0/IEC 14496-22:2019/Amd.2:2023(E) COPYRIGHT PROTECTED DOCUMENT IS0/IEC2023 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 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii @IS0/IEC2023-Allrightsreserved IS0/IEC 14496-22:2019/Amd. 2:2023(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of IsO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IsO and IEC, also take part in the work. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISo/IEC Directives, Part 2 (see www.iso.org/directives or www.iec.ch/members experts/refdocs). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISo list of patent declarations received (see www.iso.org/patents) or the IEC list of patent declarations received (see https://patents.iec.ch). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation of the voluntary nature of standards, the meaning of IsO specific terms and expressions related to conformity assessment, as well as information about Iso's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards. This document was prepared by Joint Technical Committee ISo/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. A list of all parts in the ISO/IEC 14496 series can be found on the ISO and IEC websites. Any feedback or questions on this document should be directed to the user's national standards body. A complete listing of these bodies can be found at www.iso.org/members.html and www.iec.ch/national-committees. iii @ IS0/IEC 2023 - All rights reserved