title: GStreamer DeadLock
body: <p>Currently I am working on an application using gstreamer 1.0, this application should to open a stream over rtsp, all work fine if no problem is detected on stream. But when arrived an ERROR or EOS message and I try to call:
      gst_element_set_state(pipeline, GST_STATE_NULL) </p>
  
  <p>over the pipeline, this call block the thread and nothing happen.</p>
  
  <p>Could anyone help me with this issue on GStreamer.? </p>