# Prepare Broadcasts

PhysicalFunction

In-Flight Entertainment System > In-Flight Entertainment System > Physical Architecture > Physical Functions > Root Physical Function > IFE System > Manage Audio Video Diffusion > Broadcast Stored Audio and Video Streams > Prepare Broadcasts

Thiis function is responsible for preparing broadcast material: Retrieving the digital content to be broadcasted from the storage unit and transmitting information about the target(s) of the broadcast.

## Incoming Functional Exchanges

Exchange | Source | Description | Allocated Exchange Items
--- | --- | --- | ---
Media Files | Store Digital Media |  | Media File
Imposed Video Control Command | Process Imposed Video Controls |  |
VOD Movie Control Command | Process VOD Movie Controls |  | VOD Control Command

## Outgoing Functional Exchanges

Exchange | Target | Description | Allocated Exchange Items
--- | --- | --- | ---
Broadcast Data | Initiate Audio-Video Stream |  | Media Broadcast Data
Media Request | Store Digital Media |  | Media ID
Imposed Video Playing Status | Receive Imposed Video Playing Status |  |
Pause-Stop Notification | Receive and Bufferize Video Packets |  |
Pause-Stop Notification | Decode Video Packet |  |
Pause-Stop Notification | Receive Imposed Video Playing Status |  |

## Realized Elements

- Prepare Broadcasts

## Diagrams displaying "Prepare Broadcasts"

- [PAB] [BUILD] All PCs, PFs, FEs
- [PAB] [BUILD] Template
- [PDFB] [CTX] Broadcast Stored Audio and Video Streams
- [PFBD] All Physical Functions
- [PAB] [CTX] Watch Imposed Video on Cabin Screen FC
- [PAB] [CTX] Start Playing VOD Movie FC