Pues ahora hay doble buffer

Falta el hilo que descargue el video de youtube, que se dice mas pronto que se hace

src/main.cpp

@@ -13,8 +13,13 @@ int main(int argc, char *argv[]) {
 
   QGuiApplication app(argc, argv);
 
+  // qmlRegisterType<PlaylistController>("MediaSystem", 1, 0,
+  //                                     "PlaylistController");
+
   QQmlApplicationEngine engine;
 
+  // engine.addImportPath(app.applicationDirPath());
+
   PlaylistController playlist;
   engine.rootContext()->setContextProperty("playlist", &playlist);
 
@@ -26,10 +31,7 @@ int main(int argc, char *argv[]) {
 
   engine.load(url);
 
-  Logger::info("Engine loaded");
-
-  playlist.addToQueue("../ui/media/video.mp4");
-  playlist.addToQueue("../ui/media/Puta.mp4");
+  Logger::info("Engine loaded"); 
 
   return app.exec();
 }