Instance Method

setOutputDataSource(_:)

Sets the output data source for an audio session.

Declaration

func setOutputDataSource(_ dataSource: AVAudioSessionDataSourceDescription?) throws

Parameters

dataSource

The data source for the audio session’s output.

Return Value

true if the output data source for the audio session was successfully assigned; otherwise, false.

Discussion

You can change the output source to one of the AVAudioSessionDataSourceDescription objects in the outputDataSources array. Only certain USB accessories support this feature.

See Also

Working with Audio Routes

var currentRoute: AVAudioSessionRouteDescription

A description of the current audio route’s input and output ports.

class AVAudioSessionRouteDescription

An object that describes the input and output ports associated with a session’s audio route.

var isInputAvailable: Bool

A Boolean value that indicates whether an audio input path is available.

var availableInputs: [AVAudioSessionPortDescription]?

An array of input ports available for audio routing.

var preferredInput: AVAudioSessionPortDescription?

The preferred input port for audio routing.

func setPreferredInput(AVAudioSessionPortDescription?)

Sets the preferred input port for audio routing.

class AVAudioSessionPortDescription

Information about the capabilities of the port and the hardware channels it supports.

var inputDataSource: AVAudioSessionDataSourceDescription?

The currently selected input data source.

var inputDataSources: [AVAudioSessionDataSourceDescription]?

An array of available data sources for the audio session’s current input port.

func setInputDataSource(AVAudioSessionDataSourceDescription?)

Selects a data source for the audio session’s current input port.

var outputDataSources: [AVAudioSessionDataSourceDescription]?

An array of available output data sources for the current audio route.

var outputDataSource: AVAudioSessionDataSourceDescription?

The currently selected output data source.

class AVAudioSessionDataSourceDescription

An object that defines a data source for an audio input or output, giving information such as the source’s name, location, and orientation.

func overrideOutputAudioPort(AVAudioSession.PortOverride)

Temporarily changes the current audio route.