BS EN 62766-2-2:2017
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Consumer terminal function for access to IPTV and open internet multimedia services – HTTP adaptive streaming
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 38 |
IEC 62766-2-2:2016 specifies media formats for adaptive unicast content streaming over HTTP. Two HTTP adaptive streaming formats are specified. The first is based entirely on MPEG DASH. The second is the OIPF “ HTTP adaptive streaming” (HAS) format, which is based upon 3GPP’s release 9 adaptive HTTP streaming (AHS) format, with some profiling and extensions to add the features of media components and support for MPEG-2 transport stream content segment format. The latter format was specified before MPEG DASH had been published. It is retained due to usage in some legacy applications.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | INTRODUCTION |
| 12 | 1 Scope 2 Normative references |
| 13 | 3 Terms, definitions and abbreviated terms 3.1 General 3.2 Terms and definitions |
| 14 | 3.3 Abbreviated terms |
| 15 | 4 Adaptive streaming in the OIPF IPTV solution Figures Figure 1 – Content segmentation for HTTP adaptive streaming |
| 16 | 5 MPEG DASH based adaptive streaming 5.1 General |
| 17 | 5.2 DASH usage for the TS systems layer format 5.2.1 General 5.2.2 PID allocation 5.2.3 Protected TS content |
| 18 | 5.3 DASH usage for the MP4 systems layer format 5.3.1 General 5.3.2 Protected content |
| 19 | 5.4 Operational parameters 5.5 Adaptation set audio/video source coding |
| 20 | 5.6 MPD requirements, audio description 5.7 Key management of protected contents 6 OIPF HTTP adaptive streaming 6.1 General Tables Table 1 – Role and accessibility descriptor values for audio description |
| 21 | 6.2 Media presentation 6.2.1 Media presentation description 6.2.2 Component element |
| 22 | Table 2 – Component element and attributes |
| 23 | 6.3 Segmentation constraints Figure 2 – Example of the HAS MPD |
| 25 | 6.4 Signalling of content protection in the MPD 6.5 Media presentation description updates 6.6 Adaptive media formats 6.6.1 General 6.6.2 MPEG-2 transport stream systems layer |
| 27 | 6.6.3 MP4 file format systems layer |
| 28 | 6.7 Use cases 6.7.1 Live streaming 6.7.2 Trick play |
| 29 | 6.7.3 MPEG-2 TS seeking |
| 30 | Annex A (normative)OIPF HAS MPD schema Figure A.1 – HAS MPD schema |
| 31 | Annex B (informative)OIPF HAS component management Figure B.1 – Component management example |
| 33 | Annex C (informative)Usage of the MP4 file format in OIPF HAS C.1 Audio/video synchronization Table C.1 – Example audio/video synchronization |
| 34 | C.2 Partial representations Figure C.1 – Example tfad-box |
| 35 | Figure C.2 – Partial representation MP4 example Figure C.3 – Partial representation retrieval |
| 36 | Annex D (informative)DASH usage with embedded CSPG |
| 37 | Bibliography |
