[Android] AudioUtil: document constants

[Edward Wang]

vlc-ports/android | branch: master | Edward Wang <edward.c.wang at compdigitec.com> | Mon Jun 16 18:25:56 2014 -0400| [61928fab4c3ce9798f7c6ed725af7d47d16d1f59] | committer: Edward Wang

AudioUtil: document constants

> http://git.videolan.org/gitweb.cgi/vlc-ports/android.git/?a=commit;h=61928fab4c3ce9798f7c6ed725af7d47d16d1f59
---

 vlc-android/src/org/videolan/vlc/gui/audio/AudioUtil.java |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/vlc-android/src/org/videolan/vlc/gui/audio/AudioUtil.java b/vlc-android/src/org/videolan/vlc/gui/audio/AudioUtil.java
index 1404ac5..0765b01 100644
--- a/vlc-android/src/org/videolan/vlc/gui/audio/AudioUtil.java
+++ b/vlc-android/src/org/videolan/vlc/gui/audio/AudioUtil.java
@@ -56,9 +56,21 @@ import android.widget.Toast;
 public class AudioUtil {
     public final static String TAG = "VLC/AudioUtil";
 
+    /**
+     * Cache directory (/sdcard/Android/data/...)
+     */
     public static String CACHE_DIR = null;
+    /**
+     * VLC embedded art storage location
+     */
     public static String ART_DIR = null;
+    /**
+     * Cover caching directory
+     */
     public static String COVER_DIR = null;
+    /**
+     * User-defined playlist storage directory
+     */
     public static String PLAYLIST_DIR = null;
 
     public static void setRingtone(Media song, Context context){