Tech-
invite
3GPP
space
IETF
space
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4‑5x
Content for
TS 26.247
Word version: 18.1.0
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8
DASH - Media Presentation
9
DASH - Usage of 3GPP File Format
10
QoE for Progressive Download and DASH
...
8
DASH - Media Presentation
p. 23
8.1
Introduction
p. 23
8.2
Media Presentation Description
p. 24
8.2.1
General
p. 24
8.2.2
Schema and 3GPP Extension
p. 24
8.2.3
Void
8.2.4
Void
8.3
MPD Assembly
p. 25
8.4
Hierarchical Data Model
p. 26
8.4.1
General
p. 26
8.4.2
Period
p. 27
8.4.2.1
General
|R12|
p. 27
8.4.2.2
Content Offering with Multiple Periods
|R12|
p. 27
8.4.3
Adaptation Sets and Representations
p. 28
8.4.3.1
Overview
p. 28
8.4.3.2
Common Attributes and Elements
p. 28
8.4.3.3
Adaptation Set
p. 29
8.4.3.4
Representation
p. 30
8.4.3.5
Sub-Representation
p. 31
8.4.3.6
Content Component
p. 31
8.4.4
Segments and Segment Information
p. 32
8.5
MPD Update
p. 32
8.5.1
General
p. 32
8.5.2
Media Presentation Description Delta
p. 33
8.6
Additional Media Presentation Information
p. 34
8.6.1
Introduction
p. 34
8.6.2
Program Information
p. 34
8.6.3
Descriptors
p. 34
8.7
Base URL Processing
p. 35
8.8
Event Streams
|R13|
p. 35
9
DASH - Usage of 3GPP File Format
p. 35
9.1
Introduction
p. 35
9.2
Segment Types and Formats
p. 36
9.2.1
Introduction
p. 36
9.2.2
Initialization Segment
p. 36
9.2.3
Media Segment
p. 36
9.2.3.1
General
p. 36
9.2.3.2
Subsegments and Segment Index
p. 36
9.2.3.3
Subsegment Index
p. 36
9.2.3.4
3GP-DASH Media Segment Format
p. 36
9.2.4
Self-Initializing Media Segment
p. 37
9.2.5
Media Stream and Segment Properties
p. 37
9.2.5.1
Media Stream Access Points
p. 37
9.2.5.2
Non-overlapping Segments and Subsegments
p. 37
9.2.5.3
Bitstream concatenation
p. 37
9.3
Usage on Server and Client
p. 37
9.4
Segment Properties with MPD constraints
p. 37
9.4.1
General
p. 37
9.4.1.1
Introduction
p. 37
9.4.1.2
Media Presentation Timeline
p. 37
9.4.1.3
Segment Index
p. 38
9.4.2
Segment Alignment
p. 38
9.4.3
Bitstream Switching
p. 38
9.4.4
Sub-Representation
p. 38
10
QoE for Progressive Download and DASH
p. 38
10.1
General
p. 38
10.2
QoE Metric Definitions
p. 39
10.2.1
Introduction
p. 39
10.2.2
Void
10.2.3
Representation Switch Events
p. 39
10.2.4
Average Throughput
p. 39
10.2.5
Initial Playout Delay
p. 40
10.2.6
Buffer Level
p. 40
10.2.7
Play List
p. 40
10.2.8
MPD Information
p. 42
10.2.9
Playout Delay for Media Start-up
|R13|
p. 43
10.2.10
Device information
|R14|
p. 43
10.3
Quality Metrics for Progressive Download
p. 44
10.4
Quality Metrics for DASH
p. 44
10.5
Quality Reporting Scheme for DASH
p. 46
10.6
Quality reporting protocol
p. 48
10.6.1
General
p. 48
10.6.2
Report format
p. 48
10.6.3
Reporting protocol
p. 53