Function mbuf_coded_video_frame_queue_get_count 

pub unsafe extern "C" fn mbuf_coded_video_frame_queue_get_count(
    queue: *mut mbuf_coded_video_frame_queue,
) -> c_int

Get the queue frame count.

This function returns the current number of frames held by the queue.

@param queue: The queue.

@return the queue frame count on success, negative errno on error.