[gst-devel] gst-application stuck at 'gst_object_unref'

[Vinayak]

On 1/19/07, Edward Hervey <bilboed at gmail.com> wrote:
>
> On 1/18/07, Vinayak <vinayak.pane at gmail.com> wrote:
> > Hi,
> >
> > On 1/18/07, ensonic <ensonic at hora-obscura.de> wrote:
> > > hi,
> > >
> > > On 2:10:29 pm 18/01/2007 Vinayak <vinayak.pane at gmail.com> wrote:
> > > >
> > > > Hi Everyone,
> > > > My gst-application gets stuck at gst_object_unref function which is
> > > > called after the main loop is over and pipeline state is set to
> NULL.
> > >
> > > whats happening? a crash? for the refcount related thing you might
> wanna
> > > try http://refdbg.sf.net . You could also attach your source, so that
> we
> > can
> > > look at it.
> >
> > No there is no crash.  It  doesn't  terminate at all , I have to kill
> that
> > process.
>
> hmm... are you shutting down your pipeline from a signal callback and
> not from a bus message by any chance ? It sems like a deadlock because
> you try to shut down the pipeline from a streaming thread.


No, In my application:-

{
.  /* created elements */
..
..
  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
  gst_bus_add_watch (bus, bus_call, loop);
  gst_object_unref (bus);

       /* put all elements in a bin */
  gst_bin_add_many (GST_BIN (pipeline),
            source, encoder, sink, NULL);

  gst_element_link (source, encoder);
  gst_element_link (encoder, sink);

      /* Now set to playing and iterate. */
  g_print ("APP: Setting to PLAYING\n");
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  g_print ("APP: Running\n");
  g_main_loop_run (loop);
      /* clean up nicely */
  g_print ("APP: Returned, stopping playback\n");
  gst_element_set_state (pipeline, GST_STATE_NULL);
  g_print ("APP: Deleting pipeline\n");
  gst_object_unref (GST_OBJECT (pipeline));

  return 0;
}

Here the bus is already unref. The application hangs at last line ==>
gst_object_unref(GST_OBJECT(pipeline))

  As mentionned before, seeing your code would be much easier to spot the
> error.


Thanks,
--vinayak
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