ISO/IEC INTERNATIONAL STANDARD 23002-3 First edition 2007-10-15 Information technology MPEG video technologies Part 3: Representation of auxiliary video and supplemental information Technologies de I'information-Technologies vidéo MPEG Partie3:Representationdevideoauxiliaireetdesinformations complementaires Reference number ISO/IEC 23002-3:2007(E) ISO IEC @ ISO/IEC 2007 HS unde Not for Resale ISO/IEC 23002-3:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHT PROTECTED DOCUMENT ISO/IEC2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or ISsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO/IEC 2007-All rights reserved I without license from IHS Not for Resale ISO/IEC23002-3:2007(E) Contents Page Foreword Introductior 1 Scope 2 Terms and definitions 3 Abbreviations 4 Conventions 4.1 Arithmetic operators 4.2 Relational operators . 4.3 Assignmentoperators 4.4 Variables, syntax elements, and tables. 4.5 Method of specifying syntax in tabular form .. 4.6 Specification of syntax functions, categories, and descriptors .. 5 Auxiliary video stream 5.1 Definition ..... 5.2 Use of supplemental information.. 5.3 Alignment of auxiliary and primary videos. 6 Supplemental information (Sl). .9 6.1 .9 6.2 Semantics 12 AnnexA(informative)Usageofdepthmapstreamsforstereoandauto-stereoscopicviewing. ..16 Annex B (informative) Reference spectator and parallax computation examples Annex C (informative) Example SI message streams 24 Bibliography. ili from IHS Not for Resale ISO/IEC 23002-3:2007(E) Foreword IsO (the International Organization for Standardization) and IEC (the International Electrotechnica Commission)formthespecializedsystemforworldwidestandardization.Nationalbodiesthataremembersof 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. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent