From: firejdl <firejdl@...>
Date: 2006-03-22T12:27:35+09:00
Subject: 'failed to allocate memory' with Mp3Info module

Hey all:

I'm pretty new to Ruby [this is my second script], but I'm trying to 
write a little playlist generator script to scan a few directories every 
once in a while [probably in a cron job], and update a .m3u playlist 
based on what it finds. I like having info in my playlist so it loads 
automatically with the playlist, so I'm trying to use the Mp3Info 
module. I've got my list of files in an array called files. Here's the 
code I'm using to test things out:

i = 0
files.each do |f|
  Mp3Info.open(f) do |info|
    puts f
    i += 1
  end
end

i is just to see how far it's getting, and puts f is just to see what 
the particular song is.

It runs just fine, up to i=32. At that point, it errors out, with:
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info/id3v2.rb:280:in 
`read': failed to allocate memory (NoMemoryError)
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info/id3v2.rb:280:in 
`add_value_to_tag2'
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info/id3v2.rb:231:in 
`read_id3v2_3_frames'
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info/id3v2.rb:220:in 
`read_id3v2_3_frames'
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info/id3v2.rb:135:in 
`from_io'
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info.rb:420:in 
`parse_tags'
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info.rb:179:in 
`initialize'
        from 
/usr/lib64/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib/mp3info.rb:279:in 
`open'
        from ./playlistgen.rb:48
        from ./playlistgen.rb:47

Am I doing things wrong? Or is it just running out of memory? If it's 
the latter, is there any way to expand the amount of memory for 
Ruby/Mp3Info to use?

All I really want to do is get the song length, artist and title...is 
there any better way to do it?

Thanks!
~Joey

PS. I'm using Ruby 1.8.3 and Mp3Info 0.5 on AMD64 with the patch at 
http://rubyforge.org/tracker/index.php?func=detail&aid=3157&group_id=62&atid=325

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