How could i rewind video back for, let's say, 5 seconds?
I tried player.seek(player.currentTime - 5) but this gives no effect except small pauses (like freezing while seeking - while left arrow key is pressed down).
If you are wanting it to play backwards (just as it does forwards), that is not possible that I have ever seen.
You can try looping it backwards with .seek(), but it still wont have a smooth playback experience such as going forwards.