Record streaming video from web to file. How to organize?

Question

Server equipment

Let's say there is a certain web page on which streaming video is launched. I want to record video from this page directly to a file at a certain time, offline, without my participation.
How would you approach solving this issue?

Answer 1

Write a script that at a certain time will parse a certain web page, pull out a link to a video and save the video to a file?
Another thing is that some streaming video formats are easy to pull out, and some are difficult. But you didn't give any details.