Class AudioFile

class ID3::AudioFile

ID3-tags can be attached to more than just MP3-files, that's why AudioFile has no knowledge about the MP3-standard. If you want to include it, you can derive your own class and add that functionality.

Provided Functionality:

Reads and parses audio files for ID3-tags
Writes audio files and attaches ID3-tags to them
Keeps track of complete path name to audio file
Keeps track of where the raw audio portion of an audio-file is
Top-level interface to ID3-tags

Instance Variables:

pwd , filename # working directory and path/name of the file when it was opened..
dirname, basename # absolute dirname and basename of the file
tagID3v1 , tagID3v2 # the ID3-tags , if not present these are nil
# should they be renamed to tag1 and tag2 ?

Instance Methods:

new
audioMD5sum
writeMD5sum
verifyMD5sum
version / versions

Examples:


	> a = ID3::AudioFile.new("mp3/a.mp3")
	=> #<ID3::AudioFile:0x402714ec @pwd="/home/tilo/Ruby/ID3", @tagID3v1={"ARTIST"=>"Wolfsheim", "ALBUM"=>"", "TITLE"=>"Sleep Somehow", "YEAR"=>"", "GENREID"=>"255", "COMMENT"=>""}, @audioMD5sum=nil, @filename="mp3/a.mp3", @basename="a.mp3", @audioEndX=1433600, @dirname="/home/tilo/Ruby/ID3/mp3", @audioStartX=1418, @tagID3v2={"ARTIST"=>{"encoding"=>0, "text"=>"Wolfsheim"}, "SONGLEN"=>{"encoding"=>0, "text"=>"193567"}, "CONTENTTYPE"=>{"encoding"=>0, "text"=>"newage"}, "ALBUM"=>{"encoding"=>0, "text"=>"Spectators"}, "TRACKNUM"=>{"encoding"=>0, "text"=>"6"}, "TITLE"=>{"encoding"=>0, "text"=>"Sleep Somehow"}, "MEDIATYPE"=>{"encoding"=>0, "text"=>"DIG"}}>

	> a.version
	=> "1.0 2.3.0"

	> a.tagID3v1
	=> {"ARTIST"=>"Wolfsheim", "ALBUM"=>"", "TITLE"=>"Sleep Somehow", "YEAR"=>"", "GENREID"=>"255", "COMMENT"=>""}

	> a.tagID3v2
	=> {"ARTIST"=>{"encoding"=>0, "text"=>"Wolfsheim"}, "SONGLEN"=>{"encoding"=>0, "text"=>"193567"}, "CONTENTTYPE"=>{"encoding"=>0, "text"=>"newage"}, "ALBUM"=>{"encoding"=>0, "text"=>"Spectators"}, "TRACKNUM"=>{"encoding"=>0, "text"=>"6"}, "TITLE"=>{"encoding"=>0, "text"=>"Sleep Somehow"}, "MEDIATYPE"=>{"encoding"=>0, "text"=>"DIG"}}