Function AudioUnitInitialize 

pub unsafe extern "C-unwind" fn AudioUnitInitialize(
    in_unit: AudioUnit,
) -> i32

Available on crate features AUComponent and AudioComponent only.

initialize an audio unit

Upon success, the audio unit has been successfully initialized. This means that the formats for input and output are valid and can be supported and it has based its allocations on the max number of frames that it is able to render at any given time. Once initialized, it is in a state where it can be asked to render.

In common practice, major state of an audio unit (such as its I/O formats, memory allocations) cannot be changed while an audio unit is initialized.

Parameter inUnit: The audio unit to initialize

Returns: noErr, or an error representing the reasons why the audio unit was not able to be initialized successfully

Safety

in_unit must be a valid pointer.