Extraction half of frames about pyscenedetect HOT 5 CLOSED

Could you provide debug logs to assist? You can add -v debug -l BUG_REPORT.txt to create one. Thanks.

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Could you provide debug logs to assist? You can add -v debug -l BUG_REPORT.txt to create one. Thanks.

I started with debug, but it's still not clear for me to understand what happend:

But i figured out that my test video has ~50fps. Can the problem depends on huge fps?

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Is that the same video? If the framerate is 50 FPS, then 131833 frames represents 43 minutes [1] that PySceneDetect processed. The progress bar bases the total # of frames on whatever the video container reports, which may not be accurate. To confirm this, you can try re-encoding the video with ffmpeg and then process it again with PySceneDetect.

Are you seeing this problem on different videos or just a single input? Have you tried another backend (e.g. --backend pyav)?

[1] 131833 frames / (50 frames/sec * 60 secs/min) = 43 minutes

Edit: To answer your question, the problem shouldn't depend on framerate as long as it is fixed.

from pyscenedetect.

Is that the same video? If the framerate is 50 FPS, then 131833 frames represents 43 minutes [1] that PySceneDetect processed. The progress bar bases the total # of frames on whatever the video container reports, which may not be accurate. To confirm this, you can try re-encoding the video with ffmpeg and then process it again with PySceneDetect.

Are you seeing this problem on different videos or just a single input? Have you tried another backend (e.g. --backend pyav)?

[1] 131833 frames / (50 frames/sec * 60 secs/min) = 43 minutes

Edit: To answer your question, the problem shouldn't depend on framerate as long as it is fixed.

I've tried 2 diffrent video(both 50 fps, ~1.5 hours). But it's always processes half of the frames.

I agree with your calculation. But when i save one image per scene and looking at last image, i see ~the middle frame of my vildeo.

I also used another backend(moviepy) and it works well(with all frames), but too slow compared to opencv(4-5 times slower).

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Are you able to share a sample video with me that shows the issue? That would be useful to help debug what the issue may be. Thanks!

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