class_docstr: VideoManager object for getting frames from video source for inference
  using multithreading for read and write frames.
class_docstr_tok: ["VideoManager","object","for","getting","frames","from","video","source","for","inference","using","multithreading","for","read","and","write","frames","."]
docstr: Clean up open video files and windows.
docstr_tok: ["Clean","up","open","video","files","and","windows","."]
code: def clean(self):
      """
      Clean up open video files and windows.
      """
      self.stopped = True
      self.input_lock.acquire()
      self.cap.release()
      self.input_lock.release()
      self.output_lock.acquire()
      if self.output_file is None:
          cv2.destroyAllWindows()
      else:
          self.output_file.release()
      self.output_lock.release()
  
imports: import atexit
  import copy
  import queue
  import threading
  import time
  import cv2
  import slowfast.utils.logging
  from slowfast.visualization.utils import TaskInfo
label_desc: Use image node_id 10 for calling the ThreadVideoManager obj's underlying member method code with example usage: obj.clean() without return types