# Manage Audio and Video Diffusion

LogicalFunction

In-Flight Entertainment System > In-Flight Entertainment System > Logical Architecture > Logical Functions > Root Logical Function > IFE System > Manage Audio and Video Diffusion

This function is responsible for broadcasting audio and video streams, should they be VOD movies, imposed videos, on-demand or imposed music. This function also covers the transmission of audio announcements (coming from the aircraft) and the IFE passenger service interruptions triggered by these announcements.

## Incoming Internal Functional Exchanges

Exchange | Source | Target | Description | Allocated Exchange Items
--- | --- | --- | --- | ---
VOD Movie Resume Selection | Handle VOD Service Activation and Interruption | Process VOD Movie Controls |  |
VOD Movie Stop Selection | Capture VOD Selections | Process VOD Movie Controls |  |
VOD Movie Play Selection | Capture VOD Selections | Process VOD Movie Controls |  | Passenger Selection
Imposed Video Play Selection | Capture Imposed Video Selections | Process Imposed Video Controls |  |
Imposed Video Stop Selection | Capture Imposed Video Selections | Process Imposed Video Controls |  |
Imposed Video Pause Selection | Capture Imposed Video Selections | Process Imposed Video Controls |  |
Media Files | Store Digital Media | Prepare Broadcasts |  | Media Files
Audio Interruption Notification | Interrupt Current Service | Display Audio Interruption Screen on Seat TV |  |
Audio Stream | Acquire Audio Stream from Aircraft | Process Audio Announcement |  |

## Outgoing Internal Functional Exchanges

Exchange | Source | Target | Description | Allocated Exchange Items
--- | --- | --- | --- | ---
Service Interruption Command | Process Imposed Video Controls | Interrupt Current Service |  |
Audio Stream | Broadcast Audio Video Stream | Forward Audio Stream to Aircraft Cabin Speakers |  |
Media IDs | Prepare Broadcasts | Store Digital Media |  |
Played Audio Video | Play Audio-Video Stream on Seat TV | Watch Movie on Private Screen |  |
Audio Signal | Play Audio-Video Stream on Seat TV | Listen to Audio Announcement |  |
Played Video | Play Video Stream on Cabin Screen | Watch Imposed Movie on Cabin Screen |  |
Displayed Imposed Video Playing Status | Display Imposed Video Playing Status on Cabin Terminal | Command Airline-Imposed Video Broadcast |  |
Displayed Audio Interruption Screen | Display Audio Interruption Screen on Seat TV | Listen to Audio Announcement |  |
Service Interruption Command | Process Audio Announcement | Interrupt Current Service |  |

## Realized Elements

- Manage Video and Audio Diffusion

## Realizing Elements

- Manage Audio Video Diffusion

## Owned diagrams

[LDFB] [CTX] Manage Audio and Video Diffusion

## Diagrams displaying "Manage Audio and Video Diffusion"

- [LDFB] Top Level Functions
- [LDFB] [CTX] Run Passenger Services
- [LDFB] [CTX] Run Cabin Intercommunication Service
- [LDFB] [CTX] Run Video-On-Demand Service
- [LFBD] All Functions