我用来保存从 kinect-v2 ( libfreenect2pickle )接收的 rgb 和深度帧，但它会引发以下错误：
发生异常：TypeError can't pickle _cffi_backend.__CDataGCP objects File "/home/vision/Desktop/projects/python_projects/pytorch_Realtime_Multi-Person_Pose_Estimation/demo/record.py", line 36, in build_pcd pickle.dump([video_rgb, video_depth ]，f) 文件“/home/vision/Desktop/projects/python_projects/pytorch_Realtime_Multi-Person_Pose_Estimation/demo/record.py”，第 52 行，在 build_pcd(write_big_pcd=True)
如何从 python 中保存这些数据？