info bigloo

19.2.1 Metadata and Playlist

Bigloo Multimedia procedure: read-m3u input-port
Bigloo Multimedia procedure: write-m3u list output-port: The function read-m3u reads a playlist expressed in the M3U format from input-port and returns a list of songs. The function write-m3u encode such a list encoded in the M3U format to an output port.

Bigloo Multimedia procedure: mp3-id3 file-name: Extracts the ID3 tag of MP3 file named file-name. If the file contains an ID3 section, this function returns an instance of the Bigloo class id3. Otherwise, it returns #f. This function is able to deal with all the versions of ID3 encoding.

Bigloo Multimedia class: id3

(class id3
   version::bstring
   (title::bstring read-only)
   (artist::bstring read-only)
   (orchestra::obj read-only (default #f))
   (conductor::obj read-only (default #f))
   (interpret::obj read-only (default #f))
   (album::bstring read-only)
   (year::int read-only)
   (recording read-only (default #f))
   (comment::bstring read-only)
   (genre::bstring read-only)
   (track::int (default -1))
   (cd::obj (default #f)))

This class is used to reify the ID3 metadata used in the MP3 format.