How to get .npy file of target?

[Dami111]

For THUMOS'14 dataset, when I get chunk-level feature vectors(e.g. Lx2048) for each video, how could I get chunk-level labels for each video?

Groundtruth of BasketballDunk_test for THUMOS'14 dataset:

video_test_0000179 7.8 9.0
video_test_0000179 10.5 12.3
video_test_0000179 17.3 18.7
video_test_0000179 20.2 22.9

Cause groundtruth of raw video is the category of action and the interval of action, should I get the frames'labels from each interval (seconds) firstly, then get the union of 6 frames' labels as a chunk's label and combine all chunk-level labels for each video?