Glossary

This is a glossary of terms used in the developers guide.

Abbreviations

Abbreviation	Meaning	Description
A/V	Audio Video	Common term
AAC	Advanced Audio Coding
AC	Advanced Coding
AD	Audio Description
AES	Advanced Encryption Standard
AFD	Active Format Description
AFS	Auxiliary File System
AG	Application Gateway
AIT	Application Information Table	Information that links a television channel to a HbbTV application.
APDU	Application Protocol Data Unit
API	Application Programming Interface	Common term
ARC	Audio Return Channel
ASCII	American Standard Code for Information Interchange
AV	Audio Video	Common term
AVC	Advanced Video Coding	Also known as H.264, is a widely adopted video compression standard used for recording, compression, and distribution of digital video.
BAT	Bouquet Association Table	A DVB-SI table that defines and describes “bouquets” (groupings) of services, listing which channels belong to each bouquet along with their descriptors.
BMFF	Base Media File Format	Is the ISO/IEC–standardized container format that defines the generic structure for timed multimedia data, serving as the foundation for MP4 and related file formats.
CA	Conditional Access
CADD	Content Access Download Descriptor
CAS	Conditional Access System
CDM	Content Decryption Module
CDN	Content Delivery Network
CEA	Consumer Electronics Association
CE-HTML	Consumer Electronics – HyperText Markup Language
CENC	Common Encryption
CH	Channel
CI	Common Interface
CICAM	Common Interface Conditional Access Module
CII	Content Identification and Information
CIP	Channel-based, Immersive and Personalized
CIS	Correlation Information Server
CMAF	Common Media Application Format
CNI	Country and Network Identification
CoD	Content on Demand
CORB	Cross-Origin Read Blocking
CORS	Cross-Origin Resource Sharing
CRC	Cyclic Redundancy Check
CS	Companion Screen
CSA	Companion Screen Application
CSP	Content and Service Protection
CSS	Cascading Style Sheets
CSS-CII	Interface for Content Identification and other Information
CSSOM	Cascading Style Sheets Object Model
CSS-TS	Interface for Timeline Synchronisation
CSS-WC	Interface for Wall Clock
CT	Composition Time
CTA	Consumer Technology Association
CTS	Composition Time Stamp
DAE	Declarative Application Environment
DASH	Dynamic Adaptive Streaming over HTTP
DHE	Diffie Hellman key Exchange
DIAL	DIscovery And Launch
DL	Download
DLNA	Digital Living Network Alliance
DNS	Domain Name System
DOM	Document Object Model
DRM	Digital Rights Management
DSD	Delivery System Descriptor
DSI	Download Server Initiate
DSM-CC	Digital Storage Media – Command and Control
DTD	Document Type Definition
DTS	Digital Theater Systems
DTT	Digital Terrestrial Television
DVB	Digital Video Broadcasting
DVB-C	Digital Video Broadcasting – Cable
DVB-CA	DVB Conditional Access
DVB-S	Digital Video Broadcasting – Satellite
DVB-SI	DVB Service Information
DVB-T	Digital Video Broadcasting – Terrestrial
DVI	Digital Visual Interface
EBU	European Broadcasting Union
ECDHE	Elliptic Curve Diffie-Hellman key Exchange
EDID	Extended Display Identification Data
EIT	Event Information Table
EIT p/f	EIT present/following
EME	Encrypted Media Extensions
EPG	Electronic Program Guide
ES	Elementary Stream
FCC	Fast Channel Change
FDP	File Delivery Protocol
FEC	Forward Error Correction
FF	File Format or Fast Forwards (depending on context)
FQDN	Fully Qualified Domain Name
FR	Fast Reverse
FSA	File System Acceleration
GDPR	General Data Protection Regulation
GIF	Graphics Interchange Format
GOP	Group Of Pictures
HbbTV	Hybrid broadcast broadband TV
HD	High Definition
HDCP	High-bandwidth Digital Content Protection
HDMI	High Definition Multimedia Interface
HDR	High Dynamic Range
HDTV	High Definition Television
HEAAC	High Efficiency AAC
HE-AAC	High Efficiency AAC
HEVC	High Efficiency Video Coding
HFR	High Frame Rate
HLG10	Hybrid Log-Gamma with a bit depth of 10 bits
HLS	HTTP Live Streaming
HTML	HyperText Markup Language
HTTP	HyperText Transfer Protocol
HTTPS	HyperText Transfer Protocol – Secure
IDL	Interface Definition Language
IDR	Instantaneous Decoding Refresh
IDTV	Integrated Digital TV
IETF	Internet Engineering Task Force
IMS	IP Multimedia System
INT	Integer
IP	Internet Protocol
IPTV	Internet Protocol TeleVision
IRD	Integrated Receiver Decoder
ISO	International Organization for Standardization
ISOBMFF	ISO Base Media File Format
ITU-R	International Telecommunication Union – Radiocommunication standardization sector
ITU-T	International Telecommunication Union -Telecommunication standardization sector
JPEG	Joint Photographic Experts Group
JSON	JavaScript Object Notation
JTC	Joint Technical Committee
KID	Key Identifier
LC	Low Complexity
LCN	Logical Channel Number
LUFS	Loudness Units relative to Full Scale
MB	MegaBytes
MHEG	Multimedia and Hypermedia Experts Group
MI	Material Information
MIME	Multi purpose Internet Mail Extension
MMI	Man Machine Interface
MPD	Media Presentation Description
MPEG	Motion Picture Experts Group
MRMP	Multiple Representation, Multiple Preselections
MRS	Material Resolution Server
MSAS	Media Synchronisation Application Server
MSB	Most Significant Bit
MSE	Media Source Extensions
MSS	Microsoft Smooth Streaming
N/A	Not Applicable
NAL	Network Abstraction Layer
NGA	Next-Generation Audio
NI	Not Included
NIST	National Institute of Standards and Technology
NIT	Network Information Table
NTP	Network Time Protocol
OC	Object Carousel
OIPF	Open IPTV Forum
OITF	Open IPTV Terminal Function
ONID	Original Network ID
OS	Operating System
OTT	Over the Top TV
PAT	Program Association Table
PCM	Pulse Code Modulation
PCR	Program Clock Reference
PES	Packetized Elementary Streams
PID	Packet IDentifier
PIN	Personal Identification Number
PMT	Program Map Table
PNG	Portable Network Graphics
PQ10	Perceptual Quantizer with a bit depth of 10 bits
PR	Period Relative
PSI	Program Specific Information
PTS	Presentation Timestamp
PVR	Personal Video Recorder
RAP	Random Access Point
RCU	Remote Control Unit
REST	Representational State Transfer
RET	Retransmission
RFC	Request For Comments
RGB	Red Green Blue
RIFF	Resource Interchange File Format
RPC	Remote Procedure Call
RSA	Rivest-Shamir-Adleman
RTP	Real-time Transport Protocol
RUI	Remote UI
S/PDIF	Sony®/Philips® Digital Interface
SAS	Synchronisation Application Server
SC	Synchronisation Client
SCART	Syndicat des Constructeurs d’Appareils Radiorécepteurs et Téléviseurs
SD	Standard Definition
SD&S	Service Discovery and Selection
SDT	Service Description Table
SI	Service Information
SIMD	Single Instruction/Multiple Data
SIP	Session Initiation Protocol
SM	Stream Monitors
SPTS	Single Program Transport Stream
SRMP	Single Representation, Multiple Preselection
SSDP	Simple Service Discovery Protocol
SSL	Secure Sockets Layer
ST	Search Target
STC	System Time Clock
SVG	Scalable Vector Graphics
TCP	Transmission Control Protocol
TEMI	Timed External Media Information
TLS	Transport Layer Security
TSID	Transport Stream ID
TTML	Timed Text Markup Language
TTS	Text To Speech
TV	Television	Common term.
TVOS	TV Operating System
UHD	Ultra High Definition
UHDTV	Ultra High Definition Television
UI	User Interface
UPnP	Universal Plug and Play
URI	Uniform Resource Identifier
URL	Uniform Resource Locator
URN	Uniform Resource Name
UTC	Universal Time Coordinated
UTF	Unicode Transformation Format
UTF-8	UCS Transformation Format-8-bit
UUID	Universally Unique IDentifier
VoD	Video on Demand
WAV	Waveform Audio File Format
WC	Wall Clock
WOFF	Web Open Font Format
XHR	XMLHttpRequest
XHTML	eXtensible HyperText Markup Language
XML	eXtensible Markup Language

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