Broadcast Audio Video Streams

SystemFunction

In-Flight Entertainment System > In-Flight Entertainment System > System Analysis > System Functions > Root System Function > IFE System > Manage Video and Audio Diffusion > Broadcast Audio Video Streams

This function is responsible for broadcasting existing audio and video media as well as transmitting audio announcements coming from the aircraft. Transmitting audio and video streams means:

- sending them to each passenger (on Seat TVs)

- sending them to the cabin screens

- providing the cabin crew with a status of their running imposed videos.  

Involving Functional Chains

• Watch Imposed Video on Cabin Screen
• Watch Imposed Video on Private Screen
• Broadcast Audio Announcement
• Start Playing VOD Movie
• Resume VOD Movie

Allocating Component

• IFE System

Incoming Functional Ports

• FIP 1
• FIP 2
• FIP 3
• FIP 4
• FIP 5

Outgoing Functional Ports

• FOP 1
• FOP 2
• FOP 3
• FOP 4
• FOP 5
• FOP 6

Incoming Functional Exchanges

Exchange	Involving functional chains	Allocating component Exchanges	Distant Port	Source	Description	Allocated Exchange Items	Realized Functional Exchange	Realizing Functional Exchange
Audio Video Media	Watch Imposed Video on Cabin Screen Watch Imposed Video on Private Screen Start Playing VOD Movie Resume VOD Movie		FOP 1	Store Digital Media				Media Files
VOD Movie Control Command	Start Playing VOD Movie Resume VOD Movie		FOP 2	Handle VOD Movie Controls				VOD Movie Control Command
Imposed Video Control Command	Watch Imposed Video on Cabin Screen Watch Imposed Video on Private Screen		FOP 3	Handle Imposed Videos Controls				Imposed Video Control Command
VOD Movie Status	Watch Imposed Video on Private Screen Start Playing VOD Movie Resume VOD Movie		FOP 3	Manage Passenger Service Interruptions				VOD Movie Status
Audio Stream	Broadcast Audio Announcement		FOP 5	Send Audio Announcement				Audio Stream

Outgoing Functional Exchanges

Exchange	Involving functional chains	Allocating component Exchanges	Distant Port	Target	Description	Allocated Exchange Items	Realized Functional Exchange	Realizing Functional Exchange
Played Audio Video	Watch Imposed Video on Private Screen Start Playing VOD Movie Resume VOD Movie		FIP1	Watch Video on Private Screen				Played Audio Video
Displayed Video	Watch Imposed Video on Cabin Screen		FIP2	Watch Video on Cabin Screen				Played Video
Audio Stream	Watch Imposed Video on Cabin Screen		FIP 1	Play Sound in Cabin				Audio Stream
Imposed Video Playing Status	Watch Imposed Video on Cabin Screen Watch Imposed Video on Private Screen		FIP2	Play Airline-Imposed Videos				Imposed Video Playing Status Displayed Imposed Video Playing Status
Audio Signal	Broadcast Audio Announcement		FIP 2	Listen to Audio Announcement				Displayed Audio Interruption Screen Audio Signal
VOD Movie	Watch Imposed Video on Private Screen Broadcast Audio Announcement		FIP 3	Manage Passenger Service Interruptions				Service Interruption Command

Realizing Elements

• Acquire Audio Stream from Aircraft
• Forward Audio Stream to Aircraft Cabin Speakers
• Process Imposed Video Controls
• Broadcast Audio Video Stream
• Prepare Broadcasts
• Broadcast Stored Audio and Video
• Play Audio-Video Stream on Seat TV
• Play Video Stream on Cabin Screen
• Receive Imposed Video Playing Status
• Display Imposed Video Playing Status on Cabin Terminal
• Process Audio Announcement

Diagrams displaying "Broadcast Audio Video Streams"

• [ES] Perform Audio Announcement
• [ES] Start Playing VOD Movie
• [FS] Perform Audio Announcement
• [SDFB] [BUILD] All Functions
• [SDFB] [CAPABILITY] Provide Audio and Video Intercommunication Means
• [SDFB] [CAPABILITY] Provide Video Entertainment Services
• [SDFB] [CTX] Manage Video and Audio Diffusion
• [SFBD] All System Functions
• [SFCD] Broadcast Audio Announcement
• [SFCD] Resume VOD Movie
• [SFCD] Start Playing VOD Movie
• [SFCD] Watch Imposed Movie on Cabin Screen
• [SFCD] Watch Imposed Video on Private Screen