Please describe the problem:
Creating a ghost pad from a target pad or from a direction does not work.

Steps to reproduce:
For example:

  Glib::RefPtr<Gst::Pad> sink_pad = audio_convert->get_static_pad ("sink");

(1)

  Glib::RefPtr<Gst::Element> audio_convert
    = Gst::ElementFactory::create ("audioconvert", "audioconvert");

(2)

  Glib::RefPtr<Gst::GhostPad> ghost_pad
	  = Gst::GhostPad::create ("sink", Gst::PAD_SINK);



Actual results:

(1)

(lt-mediaplayer:8954): glibmm-WARNING **: Glib::ConstructParams::ConstructParams(): object class "gtkmm__GstGhostPad" has no property named "target"

(2)

(lt-mediaplayer:10732): glibmm-WARNING **: Glib::ConstructParams::ConstructParams(): object class "gtkmm__GstGhostPad" has no property named "dir"

In either case, the ghost pad is not properly functional (has no direction).


Expected results:
I would expect a ghost pad with the given target or direction to be created.

Does this happen every time?
Yes.

Other information:
From José Alburquerque:

"What you're getting above is a warning related to how the Gst::GhostPad::create() methods have been wrapped and an interaction between the parameter collection for the Gst::GhostPad construction in its super class's Gst::Pad constructor and the gstreamer object internal properties.  I wont bore you with all the details, however, suffice it to say that thanks to your reporting I think this can be quickly fixed."