video_convert.rb

#!/usr/bin/ruby

# Convert videos to mp4 for my TV

def convert(ext)
#  ext = "ogv"
  files = Dir["*.#{ext}"]

  files.each do |file|
    out = "#{file.gsub(/#{ext}$/, '')}mp4"
    next if test ?f, out
    # cmd = "ffmpeg -i #{file} -f mp4 -vcodec copy -acodec copy #{out}"
    cmd = "ffmpeg -i #{file} -threads 4 -f mp4 #{out}"
    puts cmd
    system cmd
  end
end

%w{mov flv f4v ogv ogg}.each do |ext|
  convert(ext)
end