The Python virtual environment is correct but I get the following error when I run "bash ./execute_pipeline.sh ./0_input ./output"

[ZhongyuMa]

egin Stage 1 : Shot Segmentation
Processing: ./0_input/image00002.jpg
Traceback (most recent call last):
File "shot_segmentation.py", line 93, in
do_shot_segmentation(f, filePath, input_folder, output_folder);
File "shot_segmentation.py", line 56, in do_shot_segmentation
output = pyannote_shot(filePath)
File "shot_segmentation.py", line 38, in pyannote_shot
for x in shots:
File "/home/yu/anaconda3/envs/face/lib/python3.6/site-packages/pyannote/video/structure/shot.py", line 120, in iter
t, y = zip(*self.iter_dfd())
ValueError: not enough values to unpack (expected 2, got 0)

[ZhongyuMa]

The following slave error occurred when I used video as input，

Processing: ./0_input/multi_face.avi
Traceback (most recent call last):
File "shot_segmentation.py", line 93, in
do_shot_segmentation(f, filePath, input_folder, output_folder)
File "shot_segmentation.py", line 56, in do_shot_segmentation
output = pyannote_shot(filePath)
File "shot_segmentation.py", line 38, in pyannote_shot
for x in shots:
File "/home/yu/anaconda3/envs/face/lib/python3.6/site-packages/pyannote/video/structure/shot.py", line 120, in iter
t, y = zip(*self.iter_dfd())
File "/home/yu/anaconda3/envs/face/lib/python3.6/site-packages/pyannote/video/structure/shot.py", line 113, in iter_dfd
yield t, self.dfd(previous, current, flow=None)
File "/home/yu/anaconda3/envs/face/lib/python3.6/site-packages/pyannote/video/structure/shot.py", line 92, in dfd
dy, dx = flow[y, x]
TypeError: 'NoneType' object is not subscriptable
Checking paths for all stages.

[DevendraPratapYadav]

This seems to be an error during shot segmentation in pyannote library's pyannote_shot function. Can you try it with a different video? Preferably a mp4 file. The error you see may have occured due to a bad/unreadable video frame.

[ZhongyuMa]

Thanks，I will try it later. Zhongyu Ma 邮箱：zhongyuma001@gmail.com 签名由 网易邮箱大师 定制 On 01/20/2020 05:20, Devendra Pratap Yadav wrote: This seems to be an error during shot segmentation in pyannote library's pyannote_shot function. Can you try it with a different video? Preferably a mp4 file. The error you see may have occured due to a bad/unreadable video frame. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[akshat1136]

I got the same error while trying the code and found the way around.
In /home/yu/anaconda3/envs/face/lib/python3.6/site-packages/pyannote/video/structure/shot.py file, line 77to 84, you will see that flow will be assigned only if cv2.version.split('.')[0] is either 2 or 3. But in latest pyannote-video github repo it has been updated for OpenCV version greater than 3 as well (link: https://github.com/pyannote/pyannote-video/blob/develop/pyannote/video/structure/shot.py).

So to run it just change the elif condition from OPENCV == 3 to OPENCV >= 3

[DevendraPratapYadav]

@ZhongyuMa Did the above help resolve the issue for you?