The practice of using royalty-free technologies is a large part of YouTube’s operating model, which makes total sense when you consider a footprint of billions of videos and the increasing pressures of hosting and distributing an ever-increasing amount of 4K content. The payment of royalties is a big driver as to why YouTube never adopted the more efficient H.265 codec. VP9, by comparison, is a royalty-free codec that Google developed in-house and offered better performance. The major reasons for the shift away from H.264 come down to efficiency and royalty payments. Why has there been no mention of H.264 and H.265 (HEVC) codecs so far? With regards to H.264, YouTube did heavily use the codec and displays as AVC1 in the “stats for nerds” menu if you want to compare usage. Approximate YouTube processing times per minute of video.
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