webm libvpx-vp9
# YOUTUBE & good for many web/mobile devices
# More VP9 options if choose format of webm
# Refer to section 3.4 in Features5.pdf
# 640x480 (Medium Quality, 24/25/30 frames per second)
bitrate=750k
minrate=375k
maxrate=1088k
tile-columns=1
g=240
threads=4
quality=good
crf=33
speed=4