# Display Video and Play Audio

PhysicalFunction

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

This function aggregates different display and media playing functions, which are typically allocated to different equiments: Seat TVs, Cabin Screens, etc.

## Incoming Internal Functional Exchanges

Exchange | Source | Target | Description | Allocated Exchange Items
--- | --- | --- | --- | ---
Pause-Stop Notification | Prepare Broadcasts | Receive and Bufferize Video Packets |  |
Packetized Video Stream | Send Audio Video Packet | Receive and Bufferize Video Packet |  |
Pause-Stop Notification | Prepare Broadcasts | Decode Video Packet |  |
Pause-Stop Notification | Prepare Broadcasts | Receive Imposed Video Playing Status |  |
Imposed Video Playing Status | Prepare Broadcasts | Receive Imposed Video Playing Status |  |
Audio Interruption Notification | Interrupt Current Service | Display Audio Interruption Screen on Seat TV |  |
Packetized Audio Stream | Process Audio Announcement | Receive and Bufferize Audio Packets |  |
Packetized Audio Video Stream | Send Audio Video Packet | Split Audio Video Streams |  | Audio-Video Packets
Packetized Audio Stream | Send Audio Video Packet | Send Audio Stream to Aircraft Cabin Speakers |  |
Stream Header | Initiate Audio-Video Stream | Synchronize Audio Video |  | Audio-Video Stream Header

## Outgoing Internal Functional Exchanges

Exchange | Source | Target | Description | Allocated Exchange Items
--- | --- | --- | --- | ---
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 |  |
Displayed Audio Video | Display Video on Seat TV | Watch Movie on Private Screen |  |
Displayed Video | Display Video on Seat TV | Watch Imposed Movie on Cabin Screen |  |
Displayed Video | Display Video on Cabin Screen | Watch Imposed Movie on Cabin Screen |  |
Audio Signal | Convert Audio | Listen to Audio Announcement |  |
Audio Stream | Send Audio Stream to Aircraft Cabin Speakers | Play Audio on Cabin Aircraft Speakers |  |

## Realized Elements

- Display Video and Play Audio

## Owned diagrams

[PDFB] [CTX] Display Video and Play Audio

## Diagrams displaying "Display Video and Play Audio"

- [PDFB] [CTX] Broadcast Stored Audio and Video Streams
- [PFBD] All Physical Functions
- [PDFB] [CTX] Manage Audio Video Diffusion