iOSDJ2025 - Stream Deck Plugin using Swift

With Stream Deck, you can create custom plugins and register actions.
This time, I created a plugin in Swift to make it work like a device for DJs.

Transcript

2. Stream Deck
3. Stream Deck Quate: https://www.elgato.com/jp/en/explorer/products/stream-deck/stream-deck-vs-steam-deck/
4. Stream Deck Steam Quate: https://www.elgato.com/jp/en/explorer/products/stream-deck/stream-deck-vs-steam-deck/
5. Quate: https://www.elgato.com/jp/en/explorer/products/stream-deck/stream-deck-vs-steam-deck/
6. Stream Deck + Quate: https://www.elgato.com/jp/ja/p/stream-deck-plus
7. Stream Deck + Quate: https://www.elgato.com/jp/ja/p/stream-deck-plus • Touch Screenɿ̐ • Toggleɿ̐ • LED Buttonɿ̔
8. I thought it might be possible to use Stream Deck like a device for DJs.
9. How Stream Deck works
10. Quate: https://www.elgato.com/jp/ja/p/stream-deck-plus USB PC Stream Deck App Application How Stream Deck works The Stream Deck commands are executed by the host app on the PC.
11. PC Stream Deck App Action Application Action Action Plugin WebSocket HTTP, Socket, gRPC etc. How Stream Deck works Stream Deck App and Plugin communicate internally via WebSocket.
12. How to create a plugin
13. Quate: https://github.com/elgatosf/streamdeck How to create a plugin The fastest way to create a plugin is by using the o ff i cial SDK. Note: However, it only supports TypeScript.
14. How to create a plugin Typescript Javascript Node.js Transpile Quate: https://www.typescriptlang.org/branding/, https://github.com/voodootikigod/logo.js/, https://nodejs.org/en/about/resources/ Transpile TypeScript with Node and use JavaScript as the executable fi le.
15. Stream Deck App Application Plugin Javascript How to create a plugin Quate: https://github.com/voodootikigod/logo.js/ The Stream Deck host application on the PC acts as the interpreter that runs the JavaScript code.
16. How to create a plugin using Swift Quate: https://developer.apple.com/swift/
17. How to create a plugin using Swift WebSocket Stream Deck App Plugin Application If WebSocket communication is implemented in Swift, a plugin can be created using Swift.
18. How to create a plugin using Swift WebSocket JSON message example
19. How to create a plugin using Swift Quate: https://docs.elgato.com/streamdeck/sdk/guides/actions#handling-events Event Lifecycle Since various event cycles are available, 
 the task is simply to cover them.
20. 0 1 2 3 1 How to create a plugin using Swift 0 1 2 3 0 1 2 3 Also, button coordinates can be obtained from Stream Deck.
21. How to create a plugin using Swift Quate: https://github.com/emorydunn/StreamDeckPlugin There’s also uno ff i cial open-source Swift code available.
22. Mach-O Compile Quate: https://developer.apple.com/swift/, Swift swift build -c release How to create a plugin using Swift Swift code cannot be run directly, so it must be compiled into an executable using the Swift build command.
23. How to create a plugin using Swift Stream Deck App Application Plugin Mach-O Additionally, other compiled languages can be used as plugins if they implement WebSocket protocol correctly and produce an executable.
24. How DJ application works
25. Stream Deck App Plugin DJ application Socket Server Sound Player Unix Domain Socket .
 . How DJ application works On Mac app side, it runs as a socket server while also implementing functions to control audio.
26. How DJ application works - Network Framework - Foundation Stream - CFSocket - Darwin API Low High API Level - Darwin API Options for Socket Communication Socket Server
27. How DJ application works Sound Player - AVAudioEngineɿ Controlling audio nodes - AVAudioNodeɿ Generates and effects sound The audio implementation uses AVFoundation APIs.
28. How DJ application works Sound Player Loop Delay Reverb Flanger Isolator Pitch Rate Stutter Sound Effect Scratch
29. Let's try this !
30. GitHub - StreamDeckWorkspace Quate: https://github.com/crane-hiromu/StreamDeckWorkspace
31. Stream Deck Mobile Quate: https://apps.apple.com/us/app/elgato-stream-deck-mobile/id1440014184
32. Virtual Stream Deck (BETA) Quate: https://www.elgato.com/us/en/s/virtual-stream-deck
33. Appendix
34. Swift Ͱ Stream Deck ͷϓϥάΠϯΛ࡞Δ