outputDataSources
An array of available output data sources for the current audio route.
Declaration
var outputDataSources: [AVAudioSessionDataSourceDescription]? { get }Discussion
This property returns an array of AVAudioSessionDataSourceDescription objects representing available output sources, or nil if switching between multiple output sources isn’t currently possible. Only certain USB accessories support this feature.
You can observe changes to the value of this property by using key-value observing.