I'm trying to integrate a 3rd party video URL into my player. Want to have similar functionality as Youtube wherein if I hover over the progress bar, it shows me a thumbnail for that time slot (and a different thumbnail for a different time slot)intervals.

The catch is I don't want to download the complete video. With each thumbnail that is snapshotted, I want to process it by sending it to the backend.

Can a multi-part download be of any help here (using the range header), where I can start downloading from different ranges, take a snapshot of that specific frame, and send it to the backend? Looking for some ideas. Found a relatable question, but sadly it didn't offer any help.

Any help is much appreciated.