IEC IEC 62766-2-2 Edition 1.0 2016-12 INTERNATIONAL STANDARD NORME INTERNATIONALE colour inside INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 33.170; 35.240.95 ISBN978-2-8322-3689-5 Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agree. - 2 - IEC62766-2-2:2016IEC2016 FOREWORD. INTRODUCTION. .6 Scope 1 2 Normative references. 3 Terms,definitions and abbreviated terms 3.1 General. 3.2 Terms and definitions. 8 3.3 Abbreviated terms.... 4 Adaptive streaming in the OIPF IPTV solution MPEG DASH based adaptive streaming 5 5.1 General.. 11 5.2 DASH usage for the TS systems layer format.. 12 5.2.1 General... 5.2.2 PID allocation .... 5.2.3 Protected TS content.. .12 5.3 DASH usage for the MP4 systems layer format. 13 5.3.1 General ..... 5.3.2 Protected content ... .13 5.4 Operational parameters .. 14 5.5 Adaptation set audio/video source coding 14 5.6 MPD requirements, audio description.. 15 5.7 Keymanagementofprotected contents 15 OIPF HTTP adaptive streaming 6 6.1 General... 6.2 Media presentation.. 16 6.2.1 Media presentation description 16 6.2.2 Component element.. 6.3 Segmentation constraints.. 18 6.4 Signalling of contentprotection intheMPD 20 6.5 Media presentation description updates 20 6.6 Adaptivemediaformats ..20 6.6.1 General ... .20 6.6.2 MPEG-2 transport stream systems layer .20 6.6.3 MP4 file format systems layer .22 Use cases. .23 6.7 6.7.1 Live streaming.. .23 6.7.2 Trick play..... ..23 6.7.3 MPEG-2 TS seeking .. AnnexA (normative) OIPFHAS MPD schema.. AnnexB(informative)OiPFHAScomponentmanagement. .26 AnnexC(informative)Usage of the MP4 file format in OIPFHAS .28 C.1 Audio/videosynchronization... ....28 C.2 Partial representations.. AnnexD (informative)DASHusage with embedded CSPG .31 Bibliography.. .32 IEC62766-2-2:2016@IEC2016 -3- Figure 1 - Content segmentation for HTTP adaptive streaming. .10 Figure 2-Example of the HAS MPD ...18 FigureA.1-HAS MPD schema FigureB.1-Componentmanagementexample .26 Figure C.1 -Example tfad-box.. ..29 Figure C.2-Partial representation MP4 example. Figure C.3-Partial representation retrieval.. ..30 Table 1-Role and accessibility descriptor values for audio description .15 Table 2-Component element and attributes 17 Table C.1-Exampleaudio/video synchronization. .28