[Bug 702697] adder: Seek while paused causes deadlock

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=702697
  GStreamer | gst-plugins-base | git

--- Comment #6 from Brendan Long <self at brendanlong.com> 2013-06-26 17:07:14 UTC ---
This function in gstadder.c is pretty suspicious. It's sending flush_stop
events for some reason?

static gboolean
forward_event_func (const GValue * val, GValue * ret, EventData * data)
{
  GstPad *pad = g_value_get_object (val);
  GstEvent *event = data->event;
  GstPad *peer;

  gst_event_ref (event);
  GST_LOG_OBJECT (pad, "About to send event %s", GST_EVENT_TYPE_NAME (event));
  peer = gst_pad_get_peer (pad);
  /* collect pad might have been set flushing,
   * so bypass core checking that and send directly to peer */
  if (!peer || !gst_pad_send_event (peer, event)) {
    if (!peer)
      gst_event_unref (event);
    GST_WARNING_OBJECT (pad, "Sending event  %p (%s) failed.",
        event, GST_EVENT_TYPE_NAME (event));
    /* quick hack to unflush the pads, ideally we need a way to just unflush
     * this single collect pad */
    if (data->flush)
      gst_pad_send_event (pad, gst_event_new_flush_stop (TRUE));
  } else {
    g_value_set_boolean (ret, TRUE);
    GST_LOG_OBJECT (pad, "Sent event  %p (%s).",
        event, GST_EVENT_TYPE_NAME (event));
  }
  if (peer)
    gst_object_unref (peer);

  /* continue on other pads, even if one failed */
  return TRUE;
}

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