Does the video need a patent?

Need. According to the copyright law 145 days, all short videos and long videos need to apply for patents, so videos need to apply for patents. Patent literally refers to exclusive rights and interests. The word "patent" comes from Latin "Litterae patentes", which means open letters or open documents. It is a certificate used by medieval monarchs to issue certain privileges, and later refers to the exclusive rights certificate signed by the British king himself.