webm libvpx-vp9
# YOUTUBE - Ultra High Definition video
# More VP9 options if choose format of webm
# Refer to Appendix C.3 in Cinelerra_GG manual
# 3840x2160 (50 or 60 frames per second)
b=18000k
minrate=9000k
maxrate=26100k
tile-columns=4
g=240
threads=24
quality=good
crf=15
speed=4