Added checks when using player_function

src/controller/mainController.py

@@ -849,13 +849,16 @@ class Controller(object):
 			self.search("me_audio").play_all()
 
 	def menu_volume_down(self, *args, **kwargs):
-		player.player.volume = player.player.volume-2
+		if player.player != None:
+			player.player.volume = player.player.volume-2
 
 	def menu_volume_up(self, *args, **kwargs):
-		player.player.volume = player.player.volume+2
+		if player.player != None:
+			player.player.volume = player.player.volume+2
 
 	def menu_mute(self, *args, **kwargs):
-		player.player.volume = 0
+		if player.player != None:
+			player.player.volume = 0
 
 	def seek_left(self, *args, **kwargs):
 		pub.sendMessage("seek", ms=-500000)

src/presenters/player.py

@@ -198,7 +198,7 @@ class audioPlayer(object):
 		""" Check if the stream has reached the end of the file  so it will play the next song. """
 		if self.message != None and self.message.is_playing == False and len(self.message) == self.message.position:
 			volume_step = self.volume*0.15
-			while self.stream.volume*100 < self.volume:
+			while self.stream != None and self.stream.volume*100 < self.volume:
 				self.stream.volume = self.stream.volume+(volume_step/100)
 				time.sleep(0.1)
 		if self.stream != None and self.stream.is_playing == False and self.stopped == False and len(self.stream) == self.stream.position: