TECHNICAL ISO/IEC TR REPORT 23008-13 Third edition 2020-12 Information technology High efficiency coding and media delivery in heterogeneous environments Part 13: MMT implementation guidance Referencenumber IS0/IEC TR 23008-13:2020(E) IEC @IS0/IEC2020 IS0/IECTR23008-13:2020(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: [email protected] Website: www.iso.org Published in Switzerland ii @ ISO/IEC 2020 - All rights reserved IS0/IECTR23008-13:2020(E) Contents Page Foreword ..vii Introduction. ..ix 1 Scope. 2 Normative references 3 Terms and definitions 4 General overview of MPEG media transport 4.1 Systemoverview .1 4.2 Tools specified inIS0/IEC23008-1 .2 MMT function deployments 5 .3 5.1 General .3 5.2 Object reconstruction. ..3 5.2.1 General. .3 5.2.2 Recovery in MPU mode .4 5.2.3 Recoveryin GFDmode 6 5.3 Defaultassets ..6 5.4 Low-delay live streaming 7 5.5 Parallel processingin MMT sending and receiving entities. .9 5.5.1 Processing in MMT sending entity .9 5.5.2 Processing in MMT receiving entity .11 5.6 MPU streaming for live services. ..13 5.6.1 MPUpacketization. .13 5.6.2 Sending of MPUand signallingmessage ..16 5.6.3 MPU generation for SHvC-encoded video in real-time streaming .17 5.7 Fast MMT session acquisition. .19 5.8 Referencing and processing non-timed data .20 5.8.1 General .20 5.8.2 Resource grouping and referencing 20 5.8.3 Receiver handling. .21 5.9 Media adaptation for quality control in MMTP 21 5.9.1 General. 21 5.9.2 Parameters for media adaptation 21 5.9.3 Adaptation operation of MMT entity 21 5.10 Hybrid delivery in MMT 22 .22 5.10.1 General. 5.10.2 Classification of hybrid delivery 22 5.10.3 Technical elements for hybrid delivery .23 5.11 ExampleofdetailedimplementationofMMT 24 5.11.1 Use case: Combination of MMT and MPEG-2 TSfor synchronized presentation.24 5.11.2 Usecase:Combination ofMMTand HTTPstreamingfor synchronized decoding 24 5.11.3 Use case: Contentrequest in advancefor synchronized play-out .25 5.12 HRBM signalling for hybrid delivery. 26 5.12.1 Hybrid delivery from the single MMT sending entity .26 5.12.2Hybrid delivery from themultiple MMT sending entities .27 5.13 Error resilience in MMT protocol .29 5.14 Delay constrained ARQ .30 5.14.1 General. .30 5.14.2 Delivery-time constrained ARQ .30 Arrival-deadline constrained ARQ .31 5.14.3 5.15 Delivery of encrypted MPUs .33 5.16 HRBM message updating .33 5.16.1 General. 33 @ IS0/IEC 2020 - All rights reserved iii