Contents

token(byAddingRenderObserver:)

Adds a block to be called on each render cycle.

Declaration

func token(byAddingRenderObserver observer: @escaping  AURenderObserver) -> Int

Parameters

  • observer:

    The block to call.

Return Value

A token to be used when removing the observer.

Discussion

The supplied block is called at the beginning and ending of each render cycle. It should not make any blocking calls.

This method is implemented in the AUAudioUnit base class and should not be overridden.

This version 3 method is bridged to the version 2 AudioUnitAddRenderNotify(_:_:_:) API.

See Also

Managing the Render Cycle