transcode an ogg file into mp3

ogg2mp3.rb

#!/usr/bin/env ruby

## depends on:
## oggdec, lame, mp3info

def procesa(file)

  base = `basename "#{file}" .ogg`.chop
  tags = `vorbiscomment "#{file}"`.split("\n")
  tags.collect! {|t| t.split("=")}
  d = {}
  tags.each {|t| d[t.first.downcase] = t.last }
  tags = d.to_a.collect {|t| "-t #{t.first}=\"#{t.last}\" "}.join
  track = d["title"]
  artist = d["artist"]
  album = d["album"]
  genero = d["genre"]
  number = d["tracknumber"]

  ruta = file.split("/")[0..-2]
  ruta = ruta.join("/")
  if ruta == "" then ruta = "." end
  p ruta
  nuevo = ruta + "/" + base + ".mp3"
  p nuevo
  #~ p  "-t \"#{track}\" -n \"#{number}\" -a \"#{artist}\" -l \"#{album}\"  \"#{nuevo}\""
  #~ return
  `oggdec -o "t-#{base}.wav" "#{file}"`
  `lame  -m s "t-#{base}.wav" "#{nuevo}"`
  `rm -f "t-#{base}.wav"`
  `mp3info -t "#{track}" -n "#{number}" -a "#{artist}" -l "#{album}"  "#{nuevo}"`
end

#$ruta = `pwd`.chop.split("/")[-2..-1]
#$ruta = $ruta[0] + "/" + $ruta[1]
#p $ruta

ARGV.each {|f| procesa f}