flac2mp3

#!/usr/bin/ruby
# http://gist.github.com/gists/124242

filename=ARGV[0]
abort "Usage: flac2mp3 FLACFILE" if filename.nil?

`metaflac --export-tags-to=- "#{filename}"`.each_line do |s|
  v=s.strip.split '=', 2
  v[0].upcase!
  v[1].gsub! '"', '\"'
  eval %Q[#{v[0]}="#{v[1]}"];
end

args=%Q[--tt "#{TITLE}" --ta "#{ARTIST}" --tl "#{ALBUM}" --tn "#{TRACKNUMBER}" --tg "#{GENRE}"]
basename=File.basename(filename, File.extname(filename))

puts "Encoding #{basename}.mp3"
exec %Q[flac -sdc "#{filename}" | lame --alt-preset standard #{args} - "#{basename}.mp3"]