Backport pull request #13313 from jellyfin/release-10.10.z
Use nv15 as intermediate format for 2-pass rkrga scaling
Original-merge: 5c6317f68d6e255189ceb64e49500afd046e3a50
Merged-by: crobibero <cody@robibe.ro>
Backported-by: Bond_009 <bond.009@outlook.com>