IEC 中 International ISo Standard ISO/IEC21122-3 Third edition Information technology JPEG 2024-08 Xs low-latency lightweight image coding system - Part 3: Transport and container formats Reference number ISO/IEC21122-3:2024(en) @ISO/IEC2024 IS0/IEC21122-3:2024(en) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC2024 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: copyright@iso.org Website: www.iso.org Published in Switzerland @IS0/IEC 2024- All rights reserved i IS0/IEC21122-3:2024(en) Contents Page Foreword. .iv Introduction .V 1 Scope .1 .1 2 Normativereferences 3 Terms and definitions .1 Symbols andabbreviated terms. 3 4.1 Symbols .3 4.2 Abbreviatedterms .3 4.3 Naming conventions fornumerical values 5 Conformance ..4 6 Colourspecification .4 7 Organizationofthedocument. ..4 AnnexA (normative)Syntaxelementsfor JPEGXS compressed content .5 Annex B (normative) Use of JPEGXS codestreams in still image file format-JXS .31 AnnexC(normative)UseofJPEGXScodestreamsintheISOBMFF-MotionJPEGXS .36 AnnexD (normative)Use of JPEG XS codestreams in theHEIF imagefileformat .40 AnnexE (normative)UseofJPEGXScodestreamsoutsideoffileformats ..47 Bibliography ..49 @IS0/IEC 2024-All rights reserved ii