Bindings to the taglib C library, which provides simple access to audio file metadata.



Taglib Bindings for Racket


This package contains a set of Racket bindings for the Taglib library for reading metadata for popular audio formats. The bindings are for the C library, which only supports the limited abstract API of Taglib.

Requires the taglibc library.

This package has been tested on Debian GNU/Linux. If you have taglibc installed and this FFI binding cannot find it, please e-mail me about your setup so that I can improve the library.

 (require taglib)
(struct tag (title artist album comment genre year track)
        #:extra-constructor-name make-tag)
  title : string?
  artist : string?
  album : string?
  comment : string?
  genre : string?
  year : exact-nonnegative-integer?
  track : exact-nonnegative-integer?

Represents the Tag class in taglib. Contains common metadata.

(struct audio-properties (length bitrate samplerate channels)
        #:extra-constructor-name make-audio-properties)
  length : exact-nonnegative-integer?
  bitrate : exact-nonnegative-integer?
  samplerate : exact-nonnegative-integer?
  channels : exact-nonnegative-integer?

Represents the AudioProperties class in taglib. Contains audio properties.

(get-metadata path)
 -> (option/c (list/c tag/c audio-properties/c))
  path : path-string?

Extracts the metadata and audio properties of the audio file at the given path. If unsuccessful, the function returns #f.

Copyright © 2013-2016 Asumu Takikawa

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses.