From: James Edward Gray II <james@...>
Date: 2007-08-27T03:08:14+09:00
Subject: Re: [SOLUTION][QUIZ] ID3 Tags (#136)

On Aug 26, 2007, at 8:45 AM, Jesse Merriman wrote:

> Here's my solution.

Here's my own:

#!/usr/bin/env ruby -w

GENRES = %w[ Blues Classic\ Rock Country Dance Disco Funk Grunge Hip- 
Hop Jazz
              Metal New\ Age Oldies Other Pop R&B Rap Reggae Rock Techno
              Industrial Alternative Ska Death\ Metal Pranks Soundtrack
              Euro-Techno Ambient Trip-Hop Vocal Jazz+Funk Fusion Trance
              Classical Instrumental Acid House Game Sound\ Clip  
Gospel Noise
              AlternRock Bass Soul Punk Space Meditative Instrumental 
\ Pop
              Instrumental\ Rock Ethnic Gothic Darkwave Techno- 
Industrial
              Electronic Pop-Folk Eurodance Dream Southern\ Rock  
Comedy Cult
              Gangsta Top\ 40 Christian\ Rap Pop/Funk Jungle Native\  
American
              Cabaret New\ Wave Psychadelic Rave Showtunes Trailer Lo- 
Fi Tribal
              Acid\ Punk Acid\ Jazz Polka Retro Musical Rock\ &\ Roll  
Hard\ Rock
              Folk Folk-Rock National\ Folk Swing Fast\ Fusion Bebob  
Latin
              Revival Celtic Bluegrass Avantgarde Gothic\ Rock  
Progressive\ Rock
              Psychedelic\ Rock Symphonic\ Rock Slow\ Rock Big\ Band  
Chorus
              Easy\ Listening Acoustic Humour Speech Chanson Opera  
Chamber\ Music
              Sonata Symphony Booty\ Bass Primus Porn\ Groove Satire  
Slow\ Jam
              Club Tango Samba Folklore Ballad Power\ Ballad Rhythmic 
\ Soul
              Freestyle Duet Punk\ Rock Drum\ Solo A\ capella Euro-House
              Dance\ Hall ]

abort "Usage: #{File.basename($PROGRAM_NAME)} MP3_FILE" unless  
ARGV.size == 1

tag, song, artist, album, year, comment, genre =
   ARGF.read[-128..-1].unpack("A3A30A30A30A4A30C")
if comment.size == 30 and comment[28] == ?\0
   track   = comment[29]
   comment = comment[0..27].strip
else
   track = nil
end

abort "ID3v1 tag not found." unless tag == "TAG"

puts "Song:     #{song}"
puts "Artist:   #{artist}"
puts "Album:    #{album}"
puts "Comment:  #{comment}" unless comment.empty?
puts "Track:    #{track}"   unless track.nil?
puts "Year:     #{year}"
puts "Genre:    #{GENRES[genre] || 'Unknown'}"

__END__

James Edward Gray II