camera.py 文件源码

def update(self):
        from datetime import datetime, timedelta
        import pygame.image
        while self.on:
            start = datetime.now()

            if self.cam.query_image():
                # snapshot = self.cam.get_image()
                # self.frame = list(pygame.image.tostring(snapshot, "RGB", False))
                snapshot = self.cam.get_image()
                snapshot1 = pygame.transform.scale(snapshot, self.resolution)
                self.frame = pygame.surfarray.pixels3d(pygame.transform.rotate(pygame.transform.flip(snapshot1, True, False), 90))

            stop = datetime.now()
            s = 1 / self.framerate - (stop - start).total_seconds()
            if s > 0:
                time.sleep(s)

        self.cam.stop()