The right way to save YouTube video in gallery
disclaimer.
Copyright Disclaimer Underneath Part 107 of the Copyright Act 1976, allowance is made for “truthful use” for functions resembling criticism, remark, information reporting, instructing, scholarship, and analysis. Honest use is a use permitted by copyright statute that may in any other case be infringing. Non-profit, academic or private use ideas the steadiness in favor of truthful use.
source