ISO/IEC INTERNATIONAL STANDARD 23008-1 Third edition 2023-01 Information technology High efficiency coding and media delivery in heterogeneous environments Part 1: MPEG media transport (MMT) Technologies de I'information Codage a haute efficacité et livraison des medias dans des environnements hetérogenes Partie 1: Transport des médias MPEG Reference number IEC IS0/IEC 23008-1:2023(E) @IS0/IEC2023 IS0/IEC23008-1:2023(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 orIso'smemberbodyinthecountry oftherequester. ISO copyright office CP 401 · 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/IEC 2023 - All rights reserved IS0/IEC 23008-1:2023(E) Contents Page Foreword .vii Introduction .viii 1 Scope. .1 2 Normative references. .1 3 Terms, definitions and abbreviated terms .1 3.1 Terms and definitions 1 3.2 Abbreviated terms .4 4 Conventions .6 5 Overview. .6 6 MMT data model. .9 6.1 General 9 6.2 Package. .9 6.3 Asset. 10 6.4 Media processing unit (MPU) 11 6.5 Asset delivery characteristics 12 6.5.1 General 12 6.5.2 ADC descriptors 12 6.5.3 Syntax 13 6.5.4 Semantics 14 6.6 Bundle delivery characteristics 15 6.6.1 General .15 6.6.2 BDC descriptors 15 6.6.3 Syntax 15 6.6.4 Semantics. 16 ISOBMFF-based MPU. 17 7.1 General. 17 7.2 MPU brand definition 18 7.3 MPU box 19 7.3.1 Definition 19 7.3.2 Syntax. 19 7.3.3 Semantics 20 8 MMT hint track .20 8.1 General. 20 8.2 Sample description format 21 8.2.1 Definition 21 8.2.2 Syntax 21 8.2.3 Semantics 21 8.3 Sample format. 21 8.3.1 Definition 21 8.3.2 Syntax. 21 8.3.3 Semantics 22 9 Packetized delivery of Package. .23 9.1 General. 23 9.2 MMT protocol. .23 9.2.1 General. 23 9.2.2 Structure of an MMTP packet 24 9.2.3 Semantics 25 9.2.4 MMTP session description information .29 9.3 MMTP payload. .29 9.3.1 General .29 9.3.2 MPU mode 30 IS0/IEC2023-Allrightsreserved ii IS0/IEC 23008-1:2023(E) 9.3.3 Generic file delivery mode .32 9.3.4 Signalling message mode. 36 9.4 MMTP operation. 37 9.4.1 General 37 9.4.2 Delivering MPUs. 38 9.4.3 Delivering generic objects. 40 9.4.4 Header compression for MMTP packet 43 10 Signalling 45 10.1 General 45 10.2 Signalling message format 45 10.2.1 General 45 10.2.2 Syntax. 45 10.2.3 Semantics .46 10.3 Signalling messages for Package consumption 46 10.3.1 General 46 10.3.2 PA message 47 10.3.3 MPI message. 48 10.3.4 MPT message 49 10.3.5 CRI message 50 10.3.6 DCI message 51 10.3.7 PA table. 52 10.3.8 MPI table 53 10.3.9 MPtable. 56 10.3.10 CRI table. 59 10.3.11 DCI table. 60 10.3.12 Layout Configuration Table 61 10.3.13 SswR message 63 10.3.14 LS message. 64 10.3.15 LR message 65 10.3.16 SI table.. 66 10.4 Signalling messages for Package delivery. 70 10.4.1 Hypothetical receiver buffer model (HRBM) message 70 10.4.2 Measurement configuration (MC) message. 71 10.4.3 ARQ configuration (AC) message 73 10.4.4 ARQ feedback (AF) message .74 10.4.5 Reception quality feedback (RQF) message 77 10.4.6 NAM feedback (NAMF) message. 79 10.4.7 Low delay consumption (LDC) message 81 10.4.8 Hypothetical receiver buffer model (HRBM) removal message 82 10.4.9 ADC message .84 10.4.10 NAT_Keepalive (NK) message .87 10.4.11 Media Resource Identification (MRI) message 88 10.4.12 Consumption reporting (CR) message 90 10.4.13 Distributed Resource Identification (DRI) message 91 10.4.14 Distributed Signaling Information (DSI) message 94 10.4.15 Bandwidth Probing reQuest (BPQ) message. 97 10.4.16 Bandwidth Probing Response (BPR) message .98 10.4.17 Pacing Buffer Removal Rate (PRR) message. .100 10.4.18 Pacing Buffer Status Feedback (PSF) message 101 10.4.19 Cell congestion information messages 102 10.4.20 MMT Transition Request (MTR) message