ffmpeg unable to find encoder libvpx

Question

when i run

ffmpeg -y -i test.mov -threads 8 -f webm -aspect 16:9 -vcodec libvpx -deinterlace -g 120 -level 216 -profile 0 -qmax 42 -qmin 10 -rc_buf_aggressivity 0.95 -vb 2M -acodec libvorbis -aq 90 -ac 2 OUTPUT_FILE.webm 

it returns an error saying Unknown encoder 'libvpx'

I installed libvpx, libvorbis, libogg, and ffmpeg all via macports

Answer 1

Your configuration of macports was not built with libvpx. Try uninstalling ffmpeg and using Homebrew to install the package instead of macports:

brew install ffmpeg --with-libvpx  or  brew reinstall ffmpeg --with-libvpx 

Then your command should work.