CODEWITHSUNDEEP
rubymp3id3
Dan Sosedoff
Dan Sosedoff

Reputation: 2869

Ruby mp3 Id3 parsing

Currently I'm working on a music project, dealing with user mp3 uploads. The problem is that I can't find an id3 library that will work correctly for all files. I have tried id3-ruby and Mp3Info libs but none of them gives me consistently correct results. For example, most common problems:

I decided to add a form, where users can supply optional information like Artist and title; that helped a little, but didn't completely solve the problem.

What's the most usable and powerful ID3 library for ruby?

Upvotes: 9

Views: 7871

Answers (5)

sondra.kinsey
sondra.kinsey

Reputation: 843

As of 2019, the best answers are:

All other libraries are long-since unmaintained.

Krists Ozols' ID3Tag distinguishing characteristics

  • read only
  • Can read v1.x, v2.2.x, v2.3.x, v2.4.x tags
  • Supports UTF-8, UTF-16, UTF-16BE and ISO8859-1 encoding
  • last updated July 2018
  • Pure Ruby

Moumar's ruby-mp3info distinguishing characteristics

  • read and write
  • Only 2.3 version is supported for writings id3v2 tags
  • id3v2 tags are always written in UTF-16 encoding
  • last updated April 2017
  • Pure Ruby

taglib-ruby distinguishing characteristics

  • read and write
  • Many formats, not just Mp3
  • Reading/writing ID3v1 and ID3v2 including ID3v2.4 and Unicode
  • last updated May 2018
  • Binding of a well-maintained C++ library

Upvotes: 1

Franklin Yu
Franklin Yu

Reputation: 9938

id3tag is another option. Example:

require "id3tag"

mp3_file = File.open('/path/to/your/favorite_song.mp3', "rb")
tag = ID3Tag.read(mp3_file)
puts "#{tag.artist} - #{tag.title}"

Upvotes: 0

Mike Woodhouse
Mike Woodhouse

Reputation: 52316

I've used this:

http://ruby-mp3info.rubyforge.org/

or

gem install ruby-mp3info (add the regulation sudo for Mac or *nix)

There's some rdoc documentation, which is nice. On the downside, I don't much like the use of upper-case field names, which seems too concerned to preserve the names from the spec. Maybe I should hack in some aliases. Anyway, this sample script scans my music library and counts words in titles:

require 'mp3info'

count = 0
words = Hash.new { |h, k| h[k] = 0 }
Dir.glob("E:/MUSIC/**/*.mp3") do |f|
  count += 1
  Mp3Info.open(f) do |mp3info|
    title = mp3info.tag2.TIT2
    next unless title
    title.split(/\s/).each { |w| words[w.downcase] += 1 }
  end
end
puts "Examined #{count} files"
words.to_a.sort{ |a, b| b[1] <=> a[1] }[0,100].each { |w| puts "#{w[0]}: #{w[1]}" }

Upvotes: 4

Garrett
Garrett

Reputation: 8070

http://id3lib-ruby.rubyforge.org/

I particularly liked this one, you can also write tags to the file.

Upvotes: 0

Ana Betts
Ana Betts

Reputation: 74654

http://www.hakubi.us/ruby-taglib/

I used this for a project and it worked quite well. Wrapper around taglib, which is very portable.

Upvotes: 6

Related Questions