[Bug] demo_skeleton.py error

[Ishihara-Masabumi]

Branch

main branch (1.x version, such as v1.0.0, or dev-1.x branch)

Prerequisite

• [X] I have searched Issues and Discussions but cannot get the expected help.
• [X] I have read the documentation but cannot get the expected help.
• [X] The bug has not been fixed in the latest version.

Environment

pytorch 2.0.1 python 3.8.17

Describe the bug

At the line 108, "visualizer.add_datasample(", the following error occurred. TypeError: stat: path should be string, bytes, os.PathLike or integer, not NoneType

Reproduces the problem - code sample

No response

Reproduces the problem - command or script

No response

Reproduces the problem - error message

(openmmlab) dl@dl-machine:~/mmaction2/mmaction2$ python ./demo/demo_skeleton.py ./demo/demo_skeleton.mp4 ./out02.mp4 Loads checkpoint by http backend from path: http://download.openmmlab.com/mmdetection/v2.0/faster_rcnn/faster_rcnn_r50_fpn_2x_coco/faster_rcnn_r50_fpn_2x_coco_bbox_mAP-0.384_20200504_210434-a5d8aa15.pth Performing Human Detection for each frame [ ] 0/72, elapsed: 0s, ETA:08/01 09:47:23 - mmengine - WARNING - "FileClient" will be deprecated in future. Please use io functions in https://mmengine.readthedocs.io/en/latest/api/fileio.html#file-io 08/01 09:47:23 - mmengine - WARNING - "HardDiskBackend" is the alias of "LocalBackend" and the former will be deprecated in future. [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] 72/72, 16.9 task/s, elapsed: 4s, ETA: 0s Loads checkpoint by http backend from path: https://download.openmmlab.com/mmpose/top_down/hrnet/hrnet_w32_coco_256x192-c78dce93_20200708.pth Performing Human Pose Estimation for each frame [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] 72/72, 16.3 task/s, elapsed: 4s, ETA: 0s Loads checkpoint by http backend from path: https://download.openmmlab.com/mmaction/skeleton/posec3d/slowonly_r50_u48_240e_ntu60_xsub_keypoint/slowonly_r50_u48_240e_ntu60_xsub_keypoint-f3adabf1.pth Drawing skeleton for each frame [ ] 0/72, elapsed: 0s, ETA:Traceback (most recent call last): File "./demo/demo_skeleton.py", line 189, in main() File "./demo/demo_skeleton.py", line 183, in main visualize(args, frames, pose_data_samples, action_label) File "./demo/demo_skeleton.py", line 108, in visualize visualizer.add_datasample( File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/dist/utils.py", line 401, in wrapper return func(*args, **kwargs) File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/site-packages/mmpose/visualization/local_visualizer.py", line 581, in add_datasample self.add_image(name, drawn_img, step) File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/dist/utils.py", line 401, in wrapper return func(*args, **kwargs) File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/visualization/visualizer.py", line 1082, in add_image vis_backend.add_image(name, image, step) # type: ignore File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/visualization/vis_backend.py", line 56, in wrapper obj._init_env() # type: ignore File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/visualization/vis_backend.py", line 212, in _init_env if not os.path.exists(self._save_dir): File "/home/dl/miniconda3/envs/openmmlab/lib/python3.8/genericpath.py", line 19, in exists os.stat(path) TypeError: stat: path should be string, bytes, os.PathLike or integer, not NoneType

Additional information

No response

[cir7]

It seems that some frames of your video don't have any detection results. Currently, the demo can't handle an empty detection result, you could try to fix it.

[Dai-Wenxun]

I will fix it this weekend, please hold on.