ETSI
ETSI TS 126 247 V11.0.0 (2012
3GPP TS 26.247 version 11.0.0 Release 11
8.4.3.5 Sub-Representation ............................................................................................................................... 39
8.4.3.6 Content Component .............................................................................................................................. 41
8.4.4 Segments and Segment Information ........................................................................................................... 42
8.4.4.1 General .................................................................................................................................................. 42
8.4.4.2 Segment Information Description ......................................................................................................... 43
8.4.4.2.1 Segment base information ............................................................................................................... 43
8.4.4.2.2 Segment list ..................................................................................................................................... 45
8.4.4.2.3 Segment template ............................................................................................................................ 47
8.4.4.3 Segment Information ............................................................................................................................. 47
8.4.4.3.1 Overview ......................................................................................................................................... 47
8.4.4.3.2 Initialization Segment Information .................................................................................................. 48
8.4.4.3.3 Media Segment Information ............................................................................................................ 48
8.4.4.4 Template-based Segment URL Construction ........................................................................................ 49
8.5 MPD Update ..................................................................................................................................................... 50
8.5.1 General ........................................................................................................................................................ 50
8.5.2 Media Presentation Description Delta ........................................................................................................ 51
8.6 Additional Media Presentation Information ..................................................................................................... 52
8.6.1 Introduction................................................................................................................................................. 52
8.6.2 Program Information................................................................................................................................... 52
8.6.3 Descriptors .................................................................................................................................................. 53
8.6.3.1 General .................................................................................................................................................. 53
8.6.3.2 Content Protection ................................................................................................................................. 54
8.6.3.3 Role ....................................................................................................................................................... 54
8.6.3.4 Rating .................................................................................................................................................... 55
8.6.3.5 Viewpoint .............................................................................................................................................. 55
8.6.3.6 Accessibility .......................................................................................................................................... 55
8.6.3.7 Audio channel configuration ................................................................................................................. 55
8.6.3.8 Frame packing ....................................................................................................................................... 55
8.7 Base URL Processing ....................................................................................................................................... 56
8.7.1 General ........................................................................................................................................................ 56
8.7.2 Reference resolution ................................................................................................................................... 56
8.7.3 Alternative base URLs ................................................................................................................................ 57
9 DASH - Usage of 3GPP File Format ..................................................................................................... 57
9.1 Introduction ...................................................................................................................................................... 57
9.2 Segment Types and Formats ............................................................................................................................ 57
9.2.1 Introduction................................................................................................................................................. 57
9.2.2 Initialization Segment ................................................................................................................................. 57
9.2.3 Media Segment ........................................................................................................................................... 58
9.2.3.1 General .................................................................................................................................................. 58
9.2.3.2 Subsegments and Segment Index .......................................................................................................... 58
9.2.3.3 Subsegment Index ................................................................................................................................. 59
9.2.3.4 3GP-DASH Media Segment Format ..................................................................................................... 59
9.2.4 Self-Initializing Media Segment ................................................................................................................. 59
9.2.5 Media Stream and Segment Properties ....................................................................................................... 60
9.2.5.1 Media stream access points ................................................................................................................... 60
9.2.5.2 Non-overlapping Segments and Subsegments ...................................................................................... 60
9.2.5.3 Bitstream concatenation ........................................................................................................................ 60
9.3 Usage on Server and Client .............................................................................................................................. 61
9.4 Segment Properties with MPD constraints ....................................................................................................... 61
9.4.1 General ........................................................................................................................................................ 61
9.4.1.1 Introduction ........................................................................................................................................... 61
9.4.1.2 Media Presentation Timeline ................................................................................................................ 61
9.4.1.3 Segment Index ....................................................................................................................................... 62
9.4.2 Segment Alignment .................................................................................................................................... 62
9.4.3 Bitstream Switching .................................................................................................................................... 62
9.4.4 Sub-Representation ..................................................................................................................................... 62
10 QoE for Progressive Download and DASH ........................................................................................... 63
10.1 General ............................................................................................................................................................. 63
10.2 QoE Metric Definitions .................................................................................................................................... 63
10.2.1 Introduction................................................................................................................................................. 63