fix gstreamer playback

Origin commit data
------------------
Commit: 3aa3995156
Author: TangoCash <eric@loxat.de>
Date: 2017-10-06 (Fri, 06 Oct 2017)

src/gui/movieplayer.cpp

@@ -100,6 +100,7 @@ bool glcd_play = false;
 
 
 extern cVideo * videoDecoder;
+extern cAudio * audioDecoder;
 extern CRemoteControl *g_RemoteControl;	/* neutrino.cpp */
 
 extern CVolume* g_volume;
@@ -287,6 +288,11 @@ void CMoviePlayerGui::cutNeutrino()
 
 	g_Zapit->lockPlayBack();
 
+#ifdef HAVE_ARM_HARDWARE
+	videoDecoder->closeDevice();
+	audioDecoder->closeDevice();
+#endif
+
 #ifdef HAVE_AZBOX_HARDWARE
 	/* we need sectionsd to get idle and zapit to release the demuxes
 	 * and decoders so that the external player can do its work
@@ -331,6 +337,11 @@ void CMoviePlayerGui::restoreNeutrino()
 	if (isUPNP)
 		return;
 
+#ifdef HAVE_ARM_HARDWARE
+	videoDecoder->openDevice();
+	audioDecoder->openDevice();
+#endif
+
 	g_Zapit->unlockPlayBack();
 	//CZapit::getInstance()->EnablePlayback(true);