AttributeError：“ QVideoSurfaceFormat”对象没有属性“ setMirrored”

Question

from PyQt5.QtMultimedia import QVideoSurfaceFormat
lala = QVideoSurfaceFormat()
lala.setMirrored(True)

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Traceback (most recent call last):
  File "D:\python\python36\lib\site-packages\IPython\core\interactiveshell.py", line 2961, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-4-033f9a03be61>", line 1, in <module>