emms package

1 files changed, 120 insertions, 0 deletions

diff --git a/elisp/emms-cue.el b/elisp/emms-cue.el
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+;;; emms-cue.el --- Recognize cue sheet file  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2009 Free Software Foundation, Inc.
+
+;; Author: William Xu <[email protected]>
+
+;; This file is part of EMMS.
+
+;; EMMS 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 3
+;; of the License, or (at your option) any later version.
+
+;; EMMS 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 EMMS; if not, write to the Free Software Foundation,
+;; Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+
+;; By parsing cue file, we will be able to play next/previous track from a
+;; single .ape or .flac file.
+
+;;; Code:
+
+(require 'emms-playing-time)
+(require 'emms-info)
+
+(defun emms-cue-next ()
+  "Play next track from .cue file."
+  (interactive)
+  (let ((cue-track (emms-cue-next-track)))
+    (if (cdr cue-track)
+        (progn
+          (emms-seek-to (cdr cue-track))
+          (message "Will play: %s" (car cue-track)))
+      (message "Nothing to seek or missing .cue file?"))))
+
+(defun emms-cue-previous ()
+  "Play previous track from .cue file."
+  (interactive)
+  (let ((cue-track (emms-cue-previous-track)))
+    (if (cdr cue-track)
+        (progn
+          (emms-seek-to (cdr cue-track))
+          (message "Will play: %s" (car cue-track)))
+      (message "Nothing to seek or missing .cue file?"))))
+
+(defun emms-cue-next-track (&optional previous-p)
+  "Get title and offset of next track from .cue file.
+
+When PREVIOUS-P is t, get previous track info instead."
+  (let* ((track (emms-playlist-current-selected-track))
+         (name (emms-track-get track 'name))
+         (cue (concat (file-name-sans-extension name)".cue")))
+    (when (file-exists-p cue)
+      (with-temp-buffer
+        (emms-insert-file-contents cue)
+        (save-excursion
+          (if previous-p
+              (goto-char (point-max))
+            (goto-char (point-min)))
+          (let ((offset nil)
+                (title "")
+                ;; We should search one more track far when getting previous
+                ;; track.
+                (one-more-track previous-p))
+            (while (and (not offset)
+                        (funcall 
+                         (if previous-p 'search-backward-regexp 'search-forward-regexp)
+                         "INDEX 01 \\([0-9][0-9]\\):\\([0-9][0-9]\\):\\([0-9][0-9]\\)" nil t 1))
+              (let* ((min (string-to-number (match-string-no-properties 1)))
+                     (sec (string-to-number (match-string-no-properties 2)))
+                     (msec (string-to-number (match-string-no-properties 3)))
+                     (total-sec (+ (* min 60) sec (/ msec 100.0))))
+                (when (funcall (if previous-p '> '<) emms-playing-time total-sec)
+                  (if (not one-more-track)
+                      (progn
+                        (setq offset total-sec)
+                        (when (search-backward-regexp "TITLE \"\\(.*\\)\"" nil t 1)
+                          (setq title (match-string-no-properties 1))))
+                    (setq one-more-track nil)))))
+            (cons title offset)))))))
+
+(defun emms-cue-previous-track ()
+  "See `emms-cue-next-track'."
+  (emms-cue-next-track t))
+
+(defun emms-info-cueinfo (track)
+  "Add track information to TRACK.
+This is a useful element for `emms-info-functions'."
+  (when (and (emms-track-file-p track)
+             (string-match "\\.\\(ape\\|flac\\)\\'" (emms-track-name track)))
+    (let ((cue (concat (file-name-sans-extension (emms-track-name track))
+                       ".cue")))
+      (when (file-exists-p cue)
+        (with-temp-buffer
+          (emms-insert-file-contents cue)
+          (save-excursion
+            (mapc (lambda (i)
+                    (goto-char (point-min))
+                    (when (let ((case-fold-search t))
+                            (search-forward-regexp 
+                             (concat (car i) " \\(.*\\)") nil t 1))
+                      (emms-track-set track 
+                                      (cdr i)
+                                      (replace-regexp-in-string
+                                       "\\`\"\\|\"\\'" "" (match-string 1)))))
+                  '(("performer" . info-artist)
+                    ("title" . info-album)
+                    ("title" . info-title)
+                    ("rem date" . info-year)))))))))
+
+
+(provide 'emms-cue)
+;;; emms-cue.el ends here