Overview

User-defined audio output interface.

You should implement each of these callbacks, then pass an instance of this struct containing your callbacks to ulPlatformSetAudioOutput().

Public Attributes
void *	user_data
	A user-defined pointer passed to every callback (can be NULL).
ULAudioOutputCreateStreamCallback	create_stream
	Called to create a stream.
ULAudioOutputPushSamplesCallback	push_samples
	Called to push samples into a stream.
ULAudioOutputSetVolumeCallback	set_volume
	Called to set a stream's volume.
ULAudioOutputSetPausedCallback	set_paused
	Called to pause or resume a stream.
ULAudioOutputFlushCallback	flush
	Called to flush a stream on seek.
ULAudioOutputStopCallback	stop
	Called when no more samples are coming for a stream.
ULAudioOutputDestroyStreamCallback	destroy_stream
	Called to destroy a stream.
ULAudioOutputGetPlaybackPositionCallback	get_playback_position
	Called to read a stream's audio clock (can be NULL, in which case the position reads 0).
ULAudioOutputGetPreferredOutputFormatCallback	get_preferred_output_format
	Called to read the device's preferred format (can be NULL, in which case it is stereo at 48000 Hz).