-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Binding to TagLib C library.
--   
--   TagLib is a library for reading and editing the meta-data of several
--   popular audio formats. Currently it supports both ID3v1 and ID3v2 for
--   MP3 files, Ogg Vorbis comments and ID3 tags and Vorbis comments in
--   FLAC, MPC, Speex, WavPack and TrueAudio files.
@package libtagc
@version 0.11.0

module Audio.TagLib.TagLib
type TagFile = ForeignPtr Void
type Tag = TagPtr
type AudioProperties = AudioPropertiesPtr

-- | Creates a <a>TagFile</a> file based on <tt>filename</tt>, TagLib will
--   try to guess the file type. Return <a>Nothing</a> if the file type
--   cannot be determined or the file cannot opened.
tagFileOpen :: String -> IO (Maybe TagFile)

-- | Save file to disk.
tagFileSave :: TagFile -> IO Bool

-- | Returns <a>True</a> if the file is open and readble and valid
--   information for the <a>Tag</a> and <a>AudioProperties</a> was found.
tagFileIsValid :: TagFile -> IO Bool

-- | Returns <a>Tag</a> associated with this file.
tagFileGetTag :: TagFile -> IO (Maybe Tag)

-- | Returns <a>AudioProperties</a> associated with this file.
tagFileGetAudioProperties :: TagFile -> IO (Maybe AudioProperties)

-- | Returns a string with this tag's album.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetAlbum :: Tag -> IO String

-- | Set tag's album.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetAlbum :: Tag -> String -> IO ()

-- | Returns a string with this tag's artist.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetArtist :: Tag -> IO String

-- | Set tag's artist.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetArtist :: Tag -> String -> IO ()

-- | Returns a string with this tag's comment.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetComment :: Tag -> IO String

-- | Set tag's comment.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetComment :: Tag -> String -> IO ()

-- | Returns a string with this tag's genre.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetGenre :: Tag -> IO String

-- | Set tag's genre.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetGenre :: Tag -> String -> IO ()

-- | Returns a string with this tag's title.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetTitle :: Tag -> IO String

-- | Set tag's title.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetTitle :: Tag -> String -> IO ()

-- | Returns a string with this tag's track.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetTrack :: Tag -> IO Int

-- | Set tag's track.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetTrack :: Tag -> Int -> IO ()

-- | Returns a string with this tag's year.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagGetYear :: Tag -> IO Int

-- | Set tag's year.
--   
--   NOTE: by default this string should be UTF8 encoded.
tagSetYear :: Tag -> Int -> IO ()

-- | Returns the bitrate of the file in kb/s.
audioPropertiesGetBitRate :: AudioProperties -> IO Int

-- | Returns the duration of the file in seconds.
audioPropertiesGetDuration :: AudioProperties -> IO Int

-- | Returns the sample rate of the file in Hz.
audioPropertiesGetSampleRate :: AudioProperties -> IO Int

-- | Returns the number of channels in the audio stream.
audioPropertiesGetChannels :: AudioProperties -> IO Int