Compress and convert videos with ffmpeg and automator

automator_action_mp4.ruby

# open Automator
# create a new quick action
# select Movie files in Finder
# add action "Run Shell Script"
# select ruby as the shell and pass inputs as arguments
# enter this

require 'time'

ARGV.each do |input_path|
  basename = File.basename(input_path, File.extname(input_path))
  output_path = "#{File.dirname(input_path)}/#{basename}.compressed.#{Time.now.utc.iso8601}.mp4"
  command = "/opt/homebrew/bin/ffmpeg -i #{input_path} -vcodec libx264 -crf 20 #{output_path}"
  system command, exception: true
  system %{say "compression finished for movie #{basename}"}, exception: true
end

# save with the name you’d like

automator_action_webm.ruby

# same as above with 

require 'time'

ARGV.each do |input_path|
  basename = File.basename(input_path, File.extname(input_path))
  output_path = "#{File.dirname(input_path)}/#{basename}.#{Time.now.utc.iso8601}.webm"
  command = "/opt/homebrew/bin/ffmpeg -i #{input_path} -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libopus #{output_path}"
  system command, exception: true
  system %{say "compression finished for movie #{basename}"}, exception: true
end

desc.md

mp4_to_mp4_compress.sh

ffmpeg -i video.mp4 -vcodec libx265 -crf 30 video.mp4

mp4_to_webm_compress.sh

ffmpeg -i video.mp4 -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libopus video.webm