Hey do you guys know if you upload a video at H.264 (original format) to youtube. Can it be upgraded to vp9 if it gets enough traffic. Or is it always gonna be stuck at avc1 regardless of traffic due to the original video format being H.264
Youtube will always re-encode your video, it doesn’t matter what format you upload.
But if you upload in resolution higher than 1080p then you will almost surely get VP9 (doesn’t matter how many views you get, even 1-5 views it will always do VP9 for 1440p and 4k - at least that’s what it does for me).