Utube largely makes use of the VP9 and H.264/MPEG-4 AVC movie formats, and also the Dynamic Adaptive Streaming around HTTP protocol.[80] By January 2019, YouTube experienced begun rolling out films in AV1 format.[eighty one] In 2021 it was described that the organization was looking at necessitating AV1 in streaming components https://m.youtube.com/watch?v=nUP8647lY10