Calculate track duration.

modules/scheduling/fallback_manager.py

@@ -33,12 +33,14 @@ __author__ = 'David Trattnig <david.trattnig@subsquare.at>'
 import os, os.path
 import logging
 import random
+import librosa
 
-from accessify import private, protected
-from modules.base.simpleutil import SimpleUtil
+from accessify                  import private, protected
+from modules.base.simpleutil    import SimpleUtil
 from modules.communication.mail import AuraMailer
 
 
+
 class FallbackManager:
     """
     Handles all types of fallbacks in case there is an outage
@@ -150,6 +152,15 @@ class FallbackManager:
         self.logger.info("Now playing: fallback track '%s - %s'." % (artist, title))
 
 
+
+    def get_track_duration(self, file):
+        """
+        Returns the length of the given audio file.
+        """
+        y, sr = librosa.load(file)
+        duration = librosa.get_duration(y=y, sr=sr)
+        return duration
+
     #
     #   PRIVATE METHODS
     #