bool DtVideoStreamDriver::buildPipeline()
{
   std::string piplineDescription=myInitializer->findData<std::string>("pipeline");
   GError* error=NULL;
   myPipeline = gst_parse_launch(piplineDescription.c_str(), &error);

   if(error!=NULL)
   {
      DtWarn << "Error: " << error->message << std::endl;
      return false;
   }

   if(myPipeline==NULL)
   {
      DtWarn << "Error creating pipeline" << std::endl;
      return false;
   }

   myAppSrc= gst_bin_get_by_name (GST_BIN(myPipeline), "myAppSrc");
   if(myAppSrc==NULL || !(GST_IS_APP_SRC(myAppSrc)))
   {
      DtWarn << "pipeline description must have an AppSrc element named myAppSrc" << std::endl;
      return false;
   }


   //get the current channels width and height to set the caps on the appsrc
   DtChannel* c=myAgentManager.de().driverManager().inputDriver().currentChannel();
   DtOsgChannel* oc=dynamic_cast<DtOsgChannel*>(c);
   if(!oc)
   {
      DtWarn << "Need an OSG Channel for this to work!" << std::endl;
      return false;
   }

   int x,y;
   oc->getViewport(x,y, myWidth, myHeight);
   GstCaps* caps = gst_caps_new_simple (
      "video/x-raw-rgb",
      "bpp",G_TYPE_INT,24,
      "depth",G_TYPE_INT,24,
      "width", G_TYPE_INT, myWidth,
      "height", G_TYPE_INT, myHeight,
      "red_mask",   G_TYPE_INT, 0x000000ff,
      "green_mask", G_TYPE_INT, 0x0000ff00,
      "blue_mask",  G_TYPE_INT, 0x00ff0000,
      "framerate", GST_TYPE_FRACTION, 25, 1,
      "endianness", G_TYPE_INT, G_BIG_ENDIAN,
      NULL);
   gst_app_src_set_caps(GST_APP_SRC(myAppSrc), caps);

   return true;
}