ETSI TS 103 285 V1.2.1 (2018-03)

Digital Video Broadcasting (DVB); MPEG-DASH Profile for Transport of ISO BMFF Based DVB Services over IP Based Networks

RTS/JTC-DVB-379

General Information

• Status: Published
• Publication Date: 28-Mar-2018
• Technical Committee: BROADCAS - EBU/CENELEC/ETSI on Broadcasting
• Current Stage: 12 - Completion
• Due Date: 30-Mar-2018
• Completion Date: 29-Mar-2018

Standards Content (Sample)

ETSI TS 103 285 V1.2.1 (2018-03)






TECHNICAL SPECIFICATION
Digital Video Broadcasting (DVB);
MPEG-DASH Profile for Transport of ISO BMFF
Based DVB Services over IP Based Networks

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2 ETSI TS 103 285 V1.2.1 (2018-03)



Reference
RTS/JTC-DVB-379
Keywords
broadcasting, digital, DVB, IP, satellite, TV, video
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3 ETSI TS 103 285 V1.2.1 (2018-03)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 11
3 Definitions and abbreviations . 12
3.1 Definitions . 12
3.2 Abbreviations . 14
4 DASH Constraints, HTTP Support, and Synchronization . 16
4.1 DVB Profile of MPEG-DASH . 16
4.2 Media Presentation Description Constraints . 16
4.2.1 General . 16
4.2.2 Constraints on Period elements (common Period constraints) . 16
4.2.3 Constraints on Period elements conforming to Live profile . 17
4.2.4 Constraints on AdaptationSet elements (for Live Periods) . 17
4.2.5 Constraints on Representation elements (for Live Periods) . 17
4.2.6 Constraints on Period elements conforming to On Demand profile . 17
4.2.7 Constraints on AdaptationSet element (On Demand) . 18
4.2.8 Constraints on Representation element (On Demand) . 18
4.3 Segment Format Constraints . 18
4.4 Presence of Attributes and Elements . 19
4.5 Dimension Constraints . 20
4.6 Server Requirements . 20
4.7 Availability Time Synchronization between Player and Server . 20
4.7.1 Background . 20
4.7.2 Service Provider Requirements . 20
4.7.3 Player Requirements . 21
5 DASH Specific Aspects for Video . 21
5.1 DASH Specific Aspects for H.264/AVC Video . 21
5.1.1 Profiles Supported . 21
5.1.2 H.264/AVC Specifics . 22
5.1.3 Signalling of the Codec Profile . 22
5.1.4 Signalling within the AVCSampleEntry in an initialization segment . 23
5.2 DASH Specific Aspects for HEVC Video . 23
5.2.1 HEVC Specifics . 23
5.2.2 Signalling of the Codec Profile . 23
5.2.3 Profiles Supported . 25
5.2.4 Location of SEI messages . 25
5.2.5 Colour format and transfer characteristics signalling . 25
5.2.6 High Dynamic Range using HLG10 . 26
5.2.7 High Dynamic Range using PQ10 . 27
5.2.8 Temporal Layers . 27
5.2.8.1 Introduction . 27
5.2.8.2 Signalling of Temporal Layers . 27
5.2.8.3 Temporal Layers Carried in a Single Representation . 27
5.2.8.4 Temporal Layers Carried in Separate Representations . 28
6 DASH Specific Aspects for Audio . 28
6.1 Common DASH Specific Aspects for Audio . 28
6.1.1 Adaptation Sets and Representations . 28
6.1.2 Using the Role Scheme to Distinguish Between Different Adaptation Sets . 28
6.2 DASH Specific Aspects for HE-AACv2 Audio . 31
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4 ETSI TS 103 285 V1.2.1 (2018-03)
6.3 DASH Specific Aspects of Dolby Audio Technologies . 31
6.3.1 DASH specific aspects of Enhanced AC-3 and AC-4 part 1 . 31
6.3.2 DASH specific aspects of AC-4 part 2 . 32
6.3.2.1 ETSI TS 103 190-1 and ETSI TS 103 190-2 . 32
6.3.2.2 AC-4 for channel-based, immersive and personalized audio . 32
6.3.2.3 DRC and Loudness . 33
6.3.2.4 Dialogue Enhancement . 33
6.3.2.5 Additional Constraints for Packaging of Individual AC-4 Audio Programme Components into
ISO BMFF . 33
6.3.2.6 DASH Element and attribute settings for AC-4 . 33
6.3.3 Additional requirements for AC-4 encapsulation into ISO BMFF . 34
6.4 DASH Specific Aspects of DTS Audio Technologies . 34
6.5 DASH Specific Aspects of MPEG Surround . 35
6.6 Service Continuity Considerations . 35
6.6.1 Introduction. 35
6.6.2 Default Operation for Seamless Service Continuity . 36
6.6.3 Fallback Operation . 36
6.7 Signalling of MPEG-H Audio and AC-4 Preselections. 36
6.7.1 Introduction. 36
6.7.2 Content Creation Options and Use of the DASH Preselection Element . 36
6.7.3 Signalling Audio Properties for DASH Preselections . 37
6.7.4 Use of the Role Scheme to Distinguish between Preselections . 37
6.7.5 Accessibility Signalling with Preselection Elements . 38
6.7.6 Example configurations using DASH Preselections Elements . 38
6.8 DASH Specific Aspects of MPEG-H Audio . 40
6.8.1 Introduction. 40
6.8.2 MPEG-H Audio Elementary Stream Requirements . 40
6.8.3 Storage of MPEG H Audio Media Samples . 40
6.8.3.1 Bit Stream Encapsulation . 40
6.8.3.2 ISO BMFF packaging and segmentation . 40
6.8.3.2.1 Introduction . 40
6.8.3.2.2 MPEG-H Audio Sample Entry . 40
6.8.3.2.3 MHAConfigurationBox . 41
6.8.3.2.4 Random Access Point and Stream Access Point . 41
6.8.3.2.5 Configuration Change Constraints . 41
6.8.3.2.6 MPEG H Audio Multi-Stream Constraints . 42
6.8.3.2.7 Audio Preselection Constraints . 42
6.8.3.2.8 Loudness and Dynamic Range Control . 42
6.8.4 DASH Element and Attribute Settings for MPEG-H Audio . 42
7 DASH Specific Aspects for Subtitles . 43
7.1 Carriage of Subtitles . 43
7.1.1 General . 43
7.1.2 Distinguishing Between Different Uses of Subtitles . 44
7.2 Downloadable fonts . 45
7.2.0 Introduction. 45
7.2.1 Signalling within the MPD . 45
7.2.1.1 DVB font download scheme . 45
7.2.1.2 Scheme Identification in descriptors . 45
7.2.1.3 Additional attributes on the EssentialProperty and SupplementalProperty descriptors . 45
7.2.2 Font format . 46
7.2.3 Errors . 46
7.2.4 Player support . 46
7.3 Example (informative) . 46
8 Content Protection . 47
8.1 Introduction . 47
8.2 Background (informative) . 47
8.3 Encryption of Different Representations . 47
8.4 MPEG DASH MPD Content Protection descriptors . 48
8.5 MPEG Common Encryption . 48
8.5.0 Protection System Specific Header . 48
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5 ETSI TS 103 285 V1.2.1 (2018-03)
8.5.1 Key Rotation . 48
8.5.2 Random access requirement . 48
8.6 Encryption Mode . 49
8.6.0 Encryption Usage . 49
8.6.1 Constraints on the SampleAuxiliaryInformationOffsetsBox . 49
8.7 Mixing Non-Encrypted and Encrypted Content / Information . 49
9 Carriage of Generic Streams and Events in DASH . 50
9.1 Events . 50
9.1.1 Background (Informative) . 50
9.1.2 Content programme metadata . 50
9.1.2.1 Definition . 50
9.1.2.2 Event message syntax . 51
9.1.2.3 Parental rating . 52
9.1.2.4 Example . 52
9.1.3 Application messages . 53
9.1.4 Events for the Player . 53
9.1.5 Long duration inband events . 53
9.1.6 Monitoring of InbandEventStreams . 54
9.1.7 Inband event formats to support Hybrid Digital Radio slideshow and text messages . 55
9.1.7.1 Introduction . 55
9.1.7.2 Use in preference to out of band data . 55
9.1.7.3 Text messages . 55
9.1.7.4 Simple slideshow messages . 56
9.1.7.5 Enhanced slideshow messages . 56
9.1.8 Integration of DVB-DASH and DVB Application Signalling . 56
10 Player Behaviour . 57
10.0 Introduction . 57
10.1 DVB Profile Support . 57
10.2 ISO BMFF Player Constraints. 57
10.3 Bitstreams, Luminance Resolutions and Frame Rates . 58
10.4 Audio/Video Switching Between Different Representations in the same Adaptation Set . 59
10.5 Playback Across Periods . 60
10.5.1 Background . 60
10.5.2 Content Offering with Multiple Periods . 61
10.5.2.1 General . 61
10.5.2.2 Associated Adaptation Sets across Periods . 61
10.5.2.3 Period Continuity . 61
10.5.3 Player Requirements and Recommendations . 62
10.6 Trick Mode Implementation (informative) . 63
10.6.0 Introduction to Trick Mode . 63
10.6.1 Player Enabled Trick Modes . 63
10.6.1.0 Introduction to Player Enabled Trick Modes . 63
10.6.1.1 Fast Forward H.264/AVC Long GOP fast decoding and frame dropping . 64
10.6.1.2 Fast Forward H.264/AVC picture discarding before decoding . 64
10.6.1.3 Fast forward I picture access . 64
10.6.1.4 Fast reverse I picture access . 64
10.6.1.5 Segment random access . 64
10.6.1.6 Partial Segment fast forward or reverse . 65
10.6.2 Content enabled Trick Modes: . 65
10.6.2.0 Introduction to Content enabled Trick Modes . 65
10.6.2.1 Trick Play Representations . 65
10.6.2.2 Sub Representations . 65
10.7 Player Buffering . 66
10.8 Player Resiliency . 66
10.8.1 Introduction (Informative) . 66
10.8.2 Handling of BaseURLs by Players . 66
10.8.2.1 Use of BaseURLs and new attributes . 66
10.8.2.2 Selection of BaseURL . 68
10.8.2.3 Changing BaseURL . 68
10.8.2.4 BaseURL Example (Informative) . 68
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6 ETSI TS 103 285 V1.2.1 (2018-03)
10.8.3 DNS - HTTP Player . 70
10.8.4 Types of error condition and recovery options (informative) . 70
10.8.4.0 Introduction . 70
10.8.4.1 Heavy server load . 70
10.8.4.2 Configuration errors .
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