Video classification) I have a question about 64f in the dataloader of the video

Hi . I am a university student studying in South Korea. I’m confused about the videos dataloader, so I leave a question.

I want to make a 3 x 3 x 3 cube by stacking 64 frames in the video, but if the entire frame of the video is 200 frames, how is it common and best to select 64 frames?

If the total frame of the entire video is 40, how is it best to increase it to 64 frames?

If there’s any problem, I’ll delete it. I am sorry for my short English.