Using a safer method to wait for a vout to be ready

src/LibVLCpp/VLCMediaPlayer.cpp

@@ -252,3 +252,10 @@ void                                MediaPlayer::nextFrame()
     libvlc_media_player_next_frame( m_internalPtr, m_ex );
     CheckVlcppException( m_ex );
 }
+
+bool                                MediaPlayer::hasVout()
+{
+    bool    res = libvlc_media_player_has_vout( m_internalPtr, m_ex );
+    CheckVlcppException( m_ex );
+    return res;
+}

src/LibVLCpp/VLCMediaPlayer.h

@@ -59,6 +59,7 @@ namespace   LibVLCpp
         int                                 getHeight();
         float                               getFps();
         void                                nextFrame();
+        bool                                hasVout();
 
     private:
         static void                         callbacks( const libvlc_event_t* event, void* self );

src/Metadata/MetaDataWorker.cpp

@@ -81,7 +81,7 @@ void    MetaDataWorker::getMetaData()
     //Until we have a way of knowing when it is, both getWidth and getHeight method
     //will trigger exception... so we shut it up.
     LibVLCpp::Exception::setErrorCallback( LibVLCpp::Exception::silentExceptionHandler );
-    while ( m_mediaPlayer->getWidth() == 0 )
+    while ( m_mediaPlayer->hasVout() == false )
         SleepMS( 1 ); //Ugly isn't it :)
     LibVLCpp::Exception::setErrorCallback( NULL );