# Manage Video and Audio Diffusion

SystemFunction

In-Flight Entertainment System > In-Flight Entertainment System > System Analysis > System Functions > Root System Function > IFE System > Manage Video and Audio 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
--- | --- | --- | --- | ---
Audio Video Media | Store Digital Media | Broadcast Audio Video Streams |  |
VOD Movie Control Command | Handle VOD Movie Controls | Broadcast Audio Video Streams |  |
Imposed Video Control Command | Handle Imposed Videos Controls | Broadcast Audio Video Streams |  |
Audio Stream | Send Audio Announcement | Broadcast Audio Video Streams |  |

## Outgoing Internal Functional Exchanges

Exchange | Source | Target | Description | Allocated Exchange Items
--- | --- | --- | --- | ---
Played Audio Video | Broadcast Audio Video Streams | Watch Video on Private Screen |  |
Displayed Video | Broadcast Audio Video Streams | Watch Video on Cabin Screen |  |
Audio Stream | Broadcast Audio Video Streams | Play Sound in Cabin |  |
Imposed Video Playing Status | Broadcast Audio Video Streams | Play Airline-Imposed Videos |  |
Audio Signal | Broadcast Audio Video Streams | Listen to Audio Announcement |  |

## Realized Elements

- Broadcast Audio
- Broadcast Movies

## Realizing Elements

- Manage Audio and Video Diffusion

## Owned diagrams

[SDFB] [CTX] Manage Video and Audio Diffusion

## Diagrams displaying "Manage Video and Audio Diffusion"

- [SAB] High Level System Overview
- [SAB] Top Level System Overview
- [SFBD] All System Functions
- [SDFB] [BUILD] All Functions
- [SDFB] [CTX] Run Video-On-Demand Service
- [SDFB] [CTX] Run Services
- [SDFB] [CTX] Run Cabin Intercommunication Service