return key frames with the exact frame id in the original video frame sequence

[LilyDaytoy]

Hi, thanks for the wonderful tool! I wonder where I can make some modifications to let the output key frames named by their exact frame id in the original video frame sequence ;D

[thealokkr]

You may want to look at the extract_video_keyframes method https://katna.readthedocs.io/en/latest/_modules/Katna/video.html#Video.extract_video_keyframes.