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Content for  TS 26.511  Word version:  16.1.0

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1  ScopeWord‑p. 7
The present document specifies the profiles, codecs and formats for 5G Media Streaming (5GMS) services based on the 5G Media Streaming Architecture (5GMSA) including both unicast downlink and unicast uplink. The codec and format recommendations defined for each profile apply to the 5GMS client components in the User Equipment (UE) as well as the Media Application Server (AS). Profiles are defined to address specific service scenarios. A default profile is defined in the case no other profile is claimed to be supported. 5G Media Streaming protocols and formats are defined based on the Common Media Application Format (CMAF).
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2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]  TR 21.905: "Vocabulary for 3GPP Specifications".
[2]  ITU-T Recommendation H.264 (06/2019): "Advanced video coding for generic audiovisual services".
[3]  ITU-T Recommendation H.265 (02/2018): "High efficiency video coding".
[4]  TS 26.117: "5G Media Streaming (5GMS); Speech and audio profiles".
[5]  TS 26.501: "5G Media Streaming (5GMS); General description and architecture".
[6]  TS 26.307: "Presentation Layer for 3GPP Services".
[7]  ISO/IEC 23000-19: "Information Technology Multimedia Application Format (MPEG-A) - Part 19: Common Media Application Format (CMAF) for segmented media".
[8]  ISO/IEC 23001-7: "MPEG systems technologies - Part 7: Common encryption in ISO base media file format files".
[9]  CTA-5003: "Web Application Video Ecosystem (WAVE): Device Playback Capabilities Specification", available at https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5003-final.pdf.
[10]  TS 26.512: " 5G Media Streaming (5GMS); Protocols".
[11]  RFC 6381:  The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types.
[12]  TS 26.116: "Television (TV) over 3GPP Services; Video Profiles".
[13]  TS 26.118: "Virtual Reality (VR) profiles for streaming applications".
[14]  ISO/IEC 14496-12: "Information technology - Coding of audio-visual objects -Part 12: ISO base media file format".
[15]  ISO/IEC 14496-15: "Information technology - Coding of audio-visual objects - Part 15: Carriage of network abstraction layer (NAL) unit structured video in the ISO base media file format".
[16]  W3C IMSC1.1: "TTML Profiles for Internet Media Subtitles and Captions 1.1", available at http://www.w3.org/TR/ttml-imsc1.1.
[17]  ISO/IEC 14496-30: "Information technology - Coding of audio-visual objects - Part 30: Timed text and other visual overlays in ISO base media file format".
[18]  W3C Media Capabilities: "Media Capabilities", available at https://w3c.github.io/media-capabilities/ [19] CTA-5000-B: " Web Application Video Ecosystem - Web Media API Snapshot 2019", available at https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5000-b-final_v2.pdf.
[19]  ISO/IEC 23009-1: "Information Technology - Dynamic Adaptive Streaming Over HTTP (DASH) - Part 1: Media Presentation Description and Segment Formats".
[20]  TS 26.247: "Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)".
[21]  RFC 8216:  "HTTP Live Streaming".
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3  Definitions of terms, symbols and abbreviationsWord‑p. 8

3.1  Terms

For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
HD-HDR:
the capability of a UE to present video signals with all the following: at least Full-HD resolution, bit depth of at least 10, at least 60 frames per second, Wide Colour Gamut and High Dynamic Range.
MPEG-H:
It is a group of international standards under development by the ISO/IEC Moving Picture Experts Group (MPEG) - formally known as ISO/IEC 23008 - High efficiency coding and media delivery in heterogeneous environments
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3.2  Symbols

Void.

3.3  Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
5GMS
5G Media Streaming
5GMSA
5G Media Streaming Architecture
AMR
Adaptive Multi Rate
AMR-WB
Adaptive Multi Rate - Wide Band
API
Application Programming Interface
AS
Application Server
AVC
Advanced Video Coding
AVC-HD
Advanced Video Codec - High Definition
CMAF
Common Media Application Format
DASH
Dynamic Adaptive Streaming over HTTP
EVS
Enhanced Voice Services
HD
High Definition
HDR
High Dynamic Range
HD-HDR
High Definition and High Dynamic Range
HEVC
High Efficiency Video Coding
HLG
Hybrid Log-Gamma
HLS
HTTP Live Streaming
IMSC
Internet Media Subtitles and Captions
MPEG
Moving Picture Experts Group
OMAF
Omnidirectional Media Application Format
PSS
Packet-switched Streaming Service
TTML
Timed Text Markup Language
TV
Television
UE
User Equipment
UHD
Ultra High Definition
VR
Virtual Reality
VCL
Video Coding Layer
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