Initializing gstreamer crashes my Qt Application

musimbate

Hi ,
I am trying to integrate "gstreamer":http://www.gstreamer.freedesktop.org/ into my application as suggested "here ":http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideooverlay.html#GstVideoOverlay ,the problem is that the application crashes with the follwing application output:
@
Starting D:\play_ground\build-gstreamerWidget-Qt_4_8_6-Debug\debug\gstreamerWidget.exe...
The program has unexpectedly finished.
@

A section of my main function looks like this:
@

#include "widget.h"
#include <QApplication>
#include <QTimer>
#include <QWidget>

#include <glib.h>
#include <gst/gst.h>
#include <gst/video/videooverlay.h>

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

if (!g_thread_supported ())
    g_thread_init (NULL);

  gst_init (&argc, &argv);//The application crashes here
  QApplication app(argc, argv);
  app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit ()));


 
  // prepare the pipeline

  GstElement *pipeline = gst_pipeline_new ("xvoverlay");
 ...................................

  // prepare the ui

  QWidget window;
  window.resize(320, 240);
  window.show();

 WId xwinid = window.winId();
 gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (sink),
                                       guintptr (xwinid));

  run the pipeline

  int ret = app.exec();

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

  return ret;

}

@

I would appreciate it if somebody helped with the issue.Gstreamer is working within visual studio environment (console and creating its own display window) .I want that window to be a Qt widget within my app.

I am working with Qt 4.8.6 /vs 2010/win x86 if this is helpful

Thank you for your time.

SGaist

Hi,

If you want to mix both, you should have a look at QtGStreamer, it provides everything you need to mix Qt and gstreamer