Function AudioQueuePause 

pub unsafe extern "C-unwind" fn AudioQueuePause(
    in_aq: AudioQueueRef,
) -> i32

Available on crate feature AudioQueue only.

Pauses audio playback or recording.

Pausing the queue does not affect buffers or reset the audio queue. To resume playback or recording using the audio queue, call AudioQueueStart.

Parameter inAQ: The queue to be paused.

Returns: An OSStatus result code.

Safety

in_aq must be a valid pointer.