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;;; emms-info-mp3info.el --- Info-method for EMMS using mp3info
;; Copyright (C) 2003 Free Software Foundation, Inc.
;; Author: Ulrik Jensen <terryp@daimi.au.dk>
;; Keywords:
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; This file 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 General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
;; Boston, MA 02110-1301 USA
;;; Commentary:
;; This code has been adapted from code found in mp3player.el, written
;; by Jean-Philippe Theberge (jphiltheberge@videotron.ca), Mario
;; Domgoergen (kanaldrache@gmx.de) and Jorgen Sch�fer
;; <forcer@forcix.cx>
;; To activate this method for getting info, use something like:
;; (require 'emms-info-mp3info)
;; (add-to-list 'emms-info-methods-list 'emms-info-mp3info)
;;; Code:
(eval-when-compile (require 'cl))
(require 'emms-info)
(defvar emms-info-mp3info-version "0.2 $Revision: 1.10 $"
"EMMS info mp3info version string.")
;; $Id: emms-info-mp3info.el,v 1.10 2005/08/12 18:01:16 xwl Exp $
(defgroup emms-info-mp3info nil
"An EMMS-info method for getting/setting ID3v1 tags, using a
external mp3info program"
:group 'emms-info-methods)
(defcustom emms-info-mp3info-program-name "mp3info"
"*The name/path of the mp3info tag program."
:type 'string
:group 'emms-info-mp3info)
(defcustom emms-info-mp3info-field-names
'(title "title"
artist "artist"
album "album"
note "description"
year "date"
genre "genre"
file (emms-track-name track)
playing-time "playing-time"
playing-time-min "playing-time-min"
playing-time-sec "playing-time-sec")
"Plist of field names."
:type 'plist
:group 'emms-info-mp3info)
(defcustom emms-info-mp3info-set-parameter
'(title "-t"
artist "-a"
album "-l"
note "-c"
year "-y"
genre "-g")
"Parameter list"
:type 'plist
:group 'emms-info-mp3info)
(defcustom emms-info-field-delemiter "="
"Delemiter between field and content."
:type 'string
:group 'emms-info-mp3info)
(defcustom emms-info-field-seperator "\n"
"Seperator between different fields."
:type 'string
:group 'emms-info-mp3info)
(define-emms-info-method emms-info-mp3info
:providep 'emms-info-mp3info-providep
:get 'emms-info-mp3info-get
:set 'emms-info-mp3info-set)
(defun emms-info-mp3info-providep (track)
"Return non-nil if this info-method provides info for the track."
(if (and track (emms-track-name track)
(string-match "\\.mp3$" (emms-track-name track)))
t
nil))
(defun emms-info-mp3info-set (track info)
"Set the id3v1 tag of file TRACK to id3info INFO, using the
mp3info-program"
;; 0 = discard & don't wait for termination.
(call-process emms-info-mp3info-program-name nil 0 nil
"-a" (emms-info-artist info)
"-t" (emms-info-title info)
"-l" (emms-info-album info)
"-c" (emms-info-note info)
"-y" (emms-info-year info)
(emms-track-name track)))
(defun emms-info-retrieve (field)
"Search for field and get content.
If there is no field return an empty string"
(goto-char (point-min))
(save-match-data
(or (progn
(re-search-forward
(concat field emms-info-field-delemiter "\\(.*\\)"
emms-info-field-seperator)
nil t)
(match-string 1))
"")))
(defun emms-info-mp3info-get (track)
"Get the id3v1 tag of file TRACK, using the mp3info-program and
return an emms-info structure representing it."
(with-temp-buffer
(call-process emms-info-mp3info-program-name nil t nil
"-p"
(concat "title=%t\n" "artist=%a\n" "album=%l\n"
"date=%y\n" "genre=%G\n" "description=%c\n"
"playing-time=%S\n" "playing-time-min=%m\n"
"playing-time-sec=%s\n")
(emms-track-name track))
(flet ((retrieve-info (field)
(goto-char (point-min))
(save-match-data
(when (re-search-forward (concat field "=\\(.*\\)")
nil t)
(or (match-string 1) "")))))
(make-emms-info
:title (retrieve-info "title")
:artist (retrieve-info "artist")
:album (retrieve-info "album")
:note (retrieve-info "description")
:year (retrieve-info "date")
:genre (retrieve-info "genre")
:file (emms-track-name track)
:playing-time (retrieve-info "playing-time")
:playing-time-min (retrieve-info "playing-time-min")
:playing-time-sec (retrieve-info "playing-time-sec")))))
(provide 'emms-info-mp3info)
;;; emms-info-mp3info.el ends here
|
