A callback to the host for transport state information.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+Beta
- tvOS 10.0+
An audio unit accessing this property should cache it in realtime-safe storage before beginning to render.
This version 3 property is bridged to the version 2
HostCallback_GetTransportState2 callback members in the kAudioUnitProperty_HostCallbacks API.
var contextName: String?
Information about the host context in which the audio unit is connected, for display in the audio unit’s view.
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