camera_1.12_backup.py 文件源码

def _get_annotate_background(self):
        self._check_camera_open()
        mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
        if self._camera.annotate_rev == 3:
            if mp.enable_text_background:
                if mp.custom_background_color:
                    return Color.from_yuv_bytes(
                        mp.custom_background_Y,
                        mp.custom_background_U,
                        mp.custom_background_V)
                else:
                    return Color('black')
            else:
                return None
        else:
            if mp.black_text_background:
                return Color('black')
            else:
                return None