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Terms

Meaning

Description

4DDM

4D Device Manager
UI app that sets up and maps IP based on devices installed in the Venue and the Racks to perform all settings for shooting
4DML

4D Media Live
The input image is processed to create transcoding and image segments (.m4s, flagmented mp4) and manifest files (.m3u8). An instance that converts the video source of each camera channel to the 4DHLS format consisting of one 4DMLM (4DML Manager) that manages processing internally and multiple 4DMLMP’s (4DML Media Pipeline) that performs actual processing.
4DMLM
4DML Manager
A manager who manages multiple 4DMLs and their pipelines, and manages media processing tasks
4DMP
4DML Media PipeLine
Pipeline to merge/separate fragments of 4DHLS contents processed in 4DML
4DPD
4D Producer & Director
UI app for shooting Live Service, Replay, Interactive VOD production, etc.
4DRS
4D Relay Server
Instances that receives video from the camera channel coming from the venue
4DSM
4D Streaming Manager
UI app that adjusts the area to be displayed in MainView/MultiView during Live Service.
EFS
Elastic File System
AWS services that provide shared storage over a network for access from multiple instances.
GOP
Group of Pictures Digital)
A unit of video that enables access and playback from an arbitrary point of view in a video (GOP uses the boundary as an I[DR] frame)
HLS
HTTP Live Streaming
Apple's Adaptive Bitrate Streaming standard enables video playback without interruption by changing the quality of the video according to the network situation.
MMC
Multimedia Maker Daemon Client
A PC that performs Replay production tasks and calibration tasks assigned by MMS
MMd
Multimedia Maker Daemon
It is a general name for a Daemon that performs an image or function to be produced based on the original camera image, and refers to MMS and MMCs attached thereto.
MMS
Multimedia Maker Daemon Server
An MMC management PC that assigns tasks to MMC and merges the results created in each MMC to produce results.
PreSd
Pre Storage Daemon
A Daemon that saves the original image from the camera and provides the original image to VPd/4DDM/4DPS/MMc
PostSd
Post Storage Daemon
A Daemon that collects the original of the video for Live Service and transmits them to 4DRS
RTSP
Real Time Streaming Protocol
A standard that follows RFC2326/7826, which defines a server that streams video in real time, and generally refers to video streaming that follows this standard.
SDI
Serial Digital Interface
Broadcast Digital Video Interface
May be
Supplemental Enhancement Information
In AVC/HEVC digital video, auxiliary data can be inserted into the video bitstream, and it is used to insert data for position swipe in the 4DLive service.
CMd
Core Module Daemon
The process in charge of image processing, the Daemon required to use Post Stabilization, a shake compensation effect
EMd
Environment Management Daemon
A Daemon that stores system configuration information and diagnoses the state of various processes, and is mainly used to store mapped information.
CCD
Camera Control Daemon
Daemon that controls the camera
GCd
Gimbal Control Daemon
Daemon that controls the gimbal
MTd
Message Transfer Daemon
Daemon responsible for transmitting messages inside the system.
PCd
Process Control Daemon
Daemon in charge of the system processes
VPd
Vision Processor Daemon
Daemon that adjusts the image of the camera's source based on the calibration data to create a video source for the Live service.
AWS
Amazon Web Service
The name of the cloud service provided by Amazon

 

AWS Media Store
Stores original HLS contents for streaming with Storage Service provided by AWS

 

AWS Cloud Front
With the CDN service provided by AWS, service contents are cached where latency is minimized by region
IMS
Integrated Management Server
A system that stores and controls information from the 4DReplay shooting system and the 4DLive relay system. There is a separate web page that can be used by the operator. i.e. the server that manages the HW/SW/configuration of the venue and the service configuration.
CMS
Contents Management Server
A system that manages content such as sports event information, replay videos, and interactive videos. It consists of a content database, an API server that provides content information to applications, and a web page that allows operators to manage content. That is, a server that manages information about all contents to be created and delivered to the customer during the service.
H.264

 

The video compression standard is more advanced than the existing MPEG-4 Part2. Also known as AVC (Advanced Video Coding)
H.265

 

MPEG-H Part.2, which can be compressed to the same image quality with 50% of the data compared to H.264, is also called HEVC (High Efficiency Video Coding).