SwiftOCA is pure Swift implementation of the AES70/OCA control protocol, principally used for remote control of professional audio devices.
The package consists of three libraries:
- SwiftOCA: an OCA controller (client)
- SwiftOCAUI: framework for binding SwiftUI views to OCA classes
- SwiftOCADevice: an OCA device (server)
All APIs are async-safe and support both macOS and Linux: on macOS, FlyingFox is used for socket I/O, and on Linux, IORingSwift.
| Platform | TCP | UDP client | UDP server | WS client | WS server | Local |
|---|---|---|---|---|---|---|
| macOS | ✅ | ✅ | ✅ | ❌ | ✅ | ✅ |
| Linux | ✅ | ✅ | ✅ | ❌ | ❌ | ✅ |
Example code can be found in Examples.
ocacli is a command-line utility for managing OCA devices that is implemented using SwiftOCA.
Support for AES70-2023 is in progress: adding new classes is straightforward, using the @OcaProperty and @OcaDeviceProperty wrappers. For a class with only properties, it is only necessary to declare the property and accessor IDs, and all logic including event notification will be handled at runtime. For custom logic, override the handleCommand(from:) method. Custom access control can be implemented at the object or device level by overriding ensureReadable(by:command) and ensureWritable(by:command).
Serialization to JSON types is provided using the jsonObject and deserialize(jsonObject:) methods, which walk the list of declared properties, encoding non-JSON types using Codable.
A sample SwiftUI view library is also included, and a Flutter bridge is under development here. Below is a screenshot generated using SwiftOCAUI controls:
Luke Howard [email protected]