我正在嘗試構建一個可以在 Raspberry Pi 上運行的多進程應用程序。其中一個進程應該從 rpi 相機獲取一幀并將其保存到磁盤以供其他進程之一使用。但是，pythonmultiprocessing.Process類處理 rpi 相機模塊的方式有些奇怪?；旧?，如果我嘗試在 a 中運行 rpi 相機模塊Process，它會for frame in self.camera.capture_continuous在線路上凍結。下面是一些示例代碼：主文件from multiprocessing import Processimport camera as cimport time, atexit, shdef cleanUp():    print("Killed the following processes:\n{}".format(        sh.grep(sh.ps("aux", _piped=True), "python3")))    sh.pkill("python3")# Used to keep any of the processes from being orphanedatexit.register(cleanUp)proc = Process(target=c.run)proc.start()while True:    time.sleep(1)    print("main")相機.pyfrom picamera.array import PiRGBArrayfrom picamera import PiCameraimport cv2camera = PiCamera()camera.resolution = (1280, 720)camera.framerate = 30rawCapture = PiRGBArray(camera, size=(1280, 720))def run():    print("run function started")    for frame in camera.capture_continuous(rawCapture, format="bgr", use_video_port=True):        print("this never runs")        cv2.imwrite('frame.jpg', frame.array)        rawCapture.truncate(0)任何見解？