3 Definitions and abbreviations
26.2343GPPProtocols and codecsRelease 17Transparent end-to-end Packet-switched Streaming Service (PSS)TS
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
continuous media: media with an inherent notion of time. In the present document speech, audio, video, timed text
discrete media: media that itself does not contain an element of time. In the present document all media not defined as continuous media
device capability description: a description of device capabilities and/or user preferences. Contains a number of capability attributes
device capability profile: same as device capability description
frame-packed stereoscopic 3D video: a video consisting of two views in which both views were packed into a single stream before compression
http-URL: a URL with a fixed scheme of "http://" or "https://"
kilobits: 1000 bits
kilobytes: 1024 bytes
media presentation: a structured collection of data that is accessible to the HTTP-Streaming Client
media presentation description (MPD): contains information required by the HTTP-Streaming Client to access Segments and to provide the streaming service to the user
multiview stereoscopic 3D video: a video consisting of two views packed into a single stream during compression
presentation description: contains information about one or more media streams within a presentation, such as the set of encodings, network addresses and information about the content
PSS client: client for the 3GPP packet switched streaming service based on the IETF RTSP/SDP and/or HTTP standards, with possible additional 3GPP requirements according to the present document
PSS server: server for the 3GPP packet switched streaming service based on the IETF RTSP/SDP and/or HTTP standards, with possible additional 3GPP requirements according to the present document
scene description: description of the spatial layout and temporal behaviour of a presentation. It can also contain hyperlinks
stereoscopic 3D video: a video bitstream consisting of two views
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [3] and the following apply.
3GP 3GPP file format
AAC Advanced Audio Coding
ADU Application Data Unit
AVC Advanced Video Coding
CC/PP Composite Capability / Preference Profiles
CPB Coding Picture Buffer
CVO Coordination of Video Orientation
DCT Discrete Cosine Transform
DLS Downloadable Sounds
DRM Digital Rights Management
Enhanced aacPlus MPEG-4 High Efficiency AAC plus MPEG-4 Parametric Stereo
GIF Graphics Interchange Format
HDR High Dynamic Range
HDTV High-Definition TeleVision
HEVC High Efficiency Video Coding
HTML Hyper Text Markup Language
HTTP Hypertext Transfer Protocol
HTTPS Hypertext Transfer Protocol Secure
IDR Instantaneous Decoding Refresh
ITU-T International Telecommunications Union – Telecommunications
JFIF JPEG File Interchange Format
MIDI Musical Instrument Digital Interface
MIME Multipurpose Internet Mail Extensions
MMS Multimedia Messaging Service
MPD Media Presentation Description
MPEG-2 TS Moving Picture Experts Group Transport Stream
NADU Next Application Data Unit
OMA Open Mobile Alliance
PDCF Packetized DRM Content Format
PNG Portable Networks Graphics
PSS Packet-switched Streaming Service
QCIF Quarter Common Intermediate Format
RAP Random Access Point
RDF Resource Description Framework
RFC Request For Comments
RTCP RTP Control Protocol
RTP Real-time Transport Protocol
RTSP Real-Time Streaming Protocol
SBR Spectral Band Replication
SDP Session Description Protocol
SP-MIDI Scalable Polyphony MIDI
SPS Sequence Parameter Set
SRTP Secure Real-time Transport Protocol
SVG Scalable Vector Graphics
TV Television
UAProf User Agent Profile
UCS-2 Universal Character Set (the two octet form)
UHD Ultra High Definition
URI Uniform Resource Identifier
URL Uniform Resource Locator
UTC Universal Time Coordinated
UTF-8 Unicode Transformation Format (the 8-bit form)
VCL Video Coding Layer
VPS Video Parameter Set
VR Virtual Reality
W3C WWW Consortium
WML Wireless Markup Language
XMF eXtensible Music Format
XML eXtensible Markup Language