Class: ApeTag

Inherits:
Object
  • Object
show all
Defined in:
lib/audioinfo/apetag.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ ApeTag

Returns a new instance of ApeTag.



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# File 'lib/audioinfo/apetag.rb', line 8

def initialize(filename)
  @tag = {}

  begin
    @file = File.new(filename, "rb")
    @file.seek(-32, IO::SEEK_END)

    preamble, version, tagsize, itemcount, flags = 
      @file.read(24).unpack("A8VVVV")
    @version = version/1000

    raise(ApeTagError, "cannot find preamble") if preamble != 'APETAGEX'
    @file.seek(-tagsize, IO::SEEK_END)
    itemcount.times do |i|
      len, flags = @file.read(8).unpack("VV")
	key = ""
	loop do
 c = @file.getc
 break if c == 0
 key << c
	end
	#ugly FIX
	@tag[key.downcase] = @file.read(len) unless len > 100_000
    end
  ensure
    @file.close
  end
end

Instance Attribute Details

#tag ⇒ Object (readonly)

Returns the value of attribute tag.



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# File 'lib/audioinfo/apetag.rb', line 6

def tag
  @tag
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/audioinfo/apetag.rb', line 6

def version
  @version
end