#include <QApplication>
#include <QQmlApplicationEngine>
#include <QQuickWindow>
#include <QQuickItem>
#include <QRunnable>
#include <gst/gst.h>
#include <QWidget>
#include <QHBoxLayout>
#include <QQuickWindow>
#include <QQuickWidget>

class SetPlaying : public QRunnable
{
public:
  SetPlaying(GstElement *);
  ~SetPlaying();

  void run ();

private:
  GstElement * pipeline_;
};

SetPlaying::SetPlaying (GstElement * pipeline)
{
  this->pipeline_ = pipeline ? static_cast<GstElement *> (gst_object_ref (pipeline)) : NULL;
}

SetPlaying::~SetPlaying ()
{
  if (this->pipeline_)
    gst_object_unref (this->pipeline_);
}

void
SetPlaying::run ()
{
  if (this->pipeline_)
    gst_element_set_state (this->pipeline_, GST_STATE_PLAYING);
}

int main(int argc, char *argv[])
{
  int ret;

  gst_init (&argc, &argv);

  {
    QApplication app(argc, argv);

    GstElement *pipeline = gst_element_factory_make ("playbin", NULL);
    g_object_set(G_OBJECT(pipeline), "uri", argv[1], NULL);
    
    GstBin *sinkbin = (GstBin *) gst_parse_bin_from_description ("glupload ! qmlglsink name=sink", TRUE, NULL);
    GstElement *videosink = gst_bin_get_by_name (sinkbin, "sink");
    
    g_object_set(G_OBJECT(pipeline), "video-sink", sinkbin, NULL);


    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

    QQuickItem *videoItem;
    QQuickWindow *rootObject;

    /* find and set the videoItem on the sink */
    rootObject = static_cast<QQuickWindow *> (engine.rootObjects().first());
    videoItem = rootObject->findChild<QQuickItem *> ("videoItem");
    g_assert (videoItem);
    g_object_set(G_OBJECT(videosink), "widget", videoItem, NULL);

    rootObject->scheduleRenderJob (new SetPlaying (pipeline),
        QQuickWindow::BeforeSynchronizingStage);

    ret = app.exec();

    gst_element_set_state (pipeline, GST_STATE_NULL);
    gst_object_unref (pipeline);
  }

  gst_deinit ();

  return ret;
}