How to display RTSP Stream using QT?

Tejas Virpariya · 3 Jul 2016, 07:11

I am totally new for RTSP technology... If I have url like rtsp://localhost:8080/xyz.sdp, then how can I access this url in QT application?

I have a code from old Qt forum:

// Sample code to play rtsp stream on qt widgets

int main(int argc, char *argv[])
{
      gst_init (&argc, &argv);
      QApplication app(argc, argv);
      app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit ()));

      // prepare the pipeline
      GstElement *pipeline = gst_parse_launch ("playbin uri=rtsp://172.19.91.21/channel.sdp", NULL);

      // prepare the ui
      QWidget window;
      window.setWindowTitle("MyWidget");
      window.resize(640, 480);
      window.show();

      WId xwinid = window.winId();
      //this is the call to overlay the gstreamer's output to the Qt Widgets...
      gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (pipeline), xwinid);


      // run the pipeline
      GstStateChangeReturn sret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
      if (sret == GST_STATE_CHANGE_FAILURE)
      {
        gst_element_set_state (pipeline, GST_STATE_NULL);
        gst_object_unref (pipeline);
        // Exit application
        QTimer::singleShot(0, QApplication::activeWindow(), SLOT(quit()));
      }

      int ret = app.exec();

      window.hide();
      gst_element_set_state (pipeline, GST_STATE_NULL);
      gst_object_unref (pipeline);

      return ret;
}

But I don't know how to use this. What I have to pass in arguments? and How can I pass argument in this code? means I want full detail to use this code, which other .cpp files will use? which type of data in header file and .pro file? everything.

I got data from : https://forum.qt.io/topic/59758/how-to-display-rtsp-stream-using-qt-i-already-used-libvlc-qt-for-display-but-i-didn-t-get-control-over-stream-after-using-this-library-so-i-don-t-want-to-use-libvlc-qt/2