matroska libvpx-vp9 # 20171119-2100 # based on https://developers.google.com/media/vp9/settings/vod/ # for explanations see Feature5.pdf section 3 # 3840x2160 (50 or 60 frames per second) bitrate=18000k minrate=9000k maxrate=26100k tile-columns=4 g=240 threads=24 quality=good crf=15 speed=4