ISO/IEC INTERNATIONAL STANDARD 23090-8 First edition 2020-12 Information technology Coded representation of immersive media - Part 8: Network based media processing Referencenumber IS0/IEC23090-8:2020(E) IEC @IS0/IEC2020 IS0/IEC23090-8:2020(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC2020 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 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 ii @ IS0/IEC 2020 - All rights reserved IS0/IEC23090-8:2020(E) Contents Foreword.. Introduction ..viii 1 Scope.. 2 Normative references... 1 Terms, definitions and abbreviated terms.. 3.. Terms and definitions.... 3.2 Abbreviated term... 4 Conventions Overview.. 5 5.1 General... 5.2 Architecture.... 5.3 NBMP workflow.. 6 5.3.1 General... 5.3.2 Workflow processing model.... 5.3.3 Task allocation and distribution... 8 5.3.4 Workflowgraph... .8 5..4 Relationship between logical definitions, data objects and REsT resources.... 5.5Descriptionofthedefinedentitiesinthisdocument... ..10 5.5.1 NBMP APIS.... ..10 5.5.2 Content format.... 10 5.5.3 Definitions.. 10 5.5.4 Functional behaviour. NBMP descriptions... 6 .11 6.1 NBMP function description (FD) .11 6.1.1 General .... 6.1.2 Description.... 11 6.1.3 Function group 12 6.2 NBMP task description (TD).... .13 6.2.1 General...... 13 6.2.2 Description. 13 6.2.2 Task lifecycle. 6.3NBMPworkflowdescription(WD). 15 6.3.1 General 15 6.3.2 Description.. .15 6.3.3 Workflow lifecycle... 16 7 NBMPinterfaces 7.. Genera..... 17 7.2 Workflow APIs. 18 7.2.3 Workflow APIoperations... 7.3.1 General.. 20 7.3.2 Task resource... .20 7.3.3 7.4 Function discovery APIs... 22 7.4.1 General... 22 7.4.2 Function discovery queries.... 7.4.3 Function discovery API operations 23 7.5 Supported protocols... 25 NBMPdescriptors. 8 25 @IS0/IEC 2020-All rights reserved iii