I don’t know much about the clip, but according to Beqa Adventure Divers it was filmed at Tiger Beach in the Bahamas.
It appears the shark makes three snaps at the free diver.
Once at his head
the second as he is getting out of the way
and the third toward his arm.
While the shark isn’t acting in a super aggressive manner, had the shark’s mouth actually made contact with the diver, it could have easily been fatal. Thankfully the diver was able to see the shark and move out of the way.
If more info becomes available, I will update the post.
Direct link to the video: here