Thanks for your take on it TK.So no laws appeared to be violated in the video. The police were called so they were lawfully there to investigate a discharge of firearms call(presumably). Now here is where I see some gray area:
If the police just happened to roll around and initiate contact with this person and it's established no laws have been violated, then the male doesn't necessarily need to provide his information.
But, the police were called and he was found with a weapon. The police just wanted to check the guy out and make sure he wasn't wanted for anything. They were being thorough to verify the male was on the up and up. Imagine if they just walked away without checking and the guy was a wanted robbery suspect and he goes to the nearest house and kills a family. Then the police would be dinged for not being thorough. Damned if you do and damned if you don't.
My personal opinion is the male's actions caused the police to be called. The police arrive and investigate gunshots and find the male and gun. Run the guy and make sure he's not some lunatic or criminal. If he refuses then in Texas that is fail to ID. He would be more likely to beat that charge if the police happened upon him on his own, but if you are legally detained then by law, in Texas anyway, you must provide your identification when asked by an officer.