https://github.com/takikawa/taglib-racket

Racket FFI bindings to taglibc
https://github.com/takikawa/taglib-racket

racket taglib

Last synced: about 2 months ago
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Racket FFI bindings to taglibc

• Host: GitHub
• URL: https://github.com/takikawa/taglib-racket
• Owner: takikawa
• License: lgpl-3.0
• Created: 2011-10-14T17:08:29.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2016-11-01T03:38:10.000Z (about 8 years ago)
• Last Synced: 2024-10-22T21:06:09.535Z (3 months ago)
• Topics: racket, taglib
• Language: Racket
• Homepage:
• Size: 26.4 KB
• Stars: 3
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: COPYING

Awesome Lists containing this project

• awesome-racket - taglib - Bindings to the taglib C library, which provides simple access to audio file metadata. (Audio and Music)

README

        
Taglib Bindings for Racket

==========================

[![Scribble](https://img.shields.io/badge/Docs-Scribble-blue.svg)](http://docs.racket-lang.org/taglib/index.html)

This package contains a set of Racket bindings for the

[Taglib](http://developer.kde.org/~wheeler/taglib.html) 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.

```racket

 (require taglib)

```

```racket

(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.

```racket

(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.

```racket

(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.