Re: <gstmm.h> include errors

[José Alburquerque <jaalburquerque cox net>]

Milosz Derezynski wrote:
> The SVN should be back into the original place now, we were about to
> loose the domain, but it then so happened that we were given it back
> to keep it; it's still at:
>
> https://svn.beep-media-player.org/gstreamermm/trunk
>
> As for the reference, i have almost no explanation why the element
> creation wouldn't work; iit's right what you said with
>
>   
> > Although the documentation
> > http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElementFactory.html#gst-element-factory-make
> > is not explicitly clear about this, newly-created instances usually
> > provide a reference already.
> >     
>
> but the code of creating an element the C++ way is so trivial, that i
> wouldn't know what's wrong there; it's almost already like a testcase
> in itself. I'm not sure if i can get around it this day still but i'll
> try to write some finer grained tests to see what's going on.
>
>   
I tested things yesterday using both wrap(..., false) and wrap(..., 
true) and the output is the same: the element is *not* successfully 
created.  I debugged a little and truly, using wrap(..., true) shows 
that the reference count is 2 as opposed to using wrap(..., false) which 
produces a count of 1 in the flow of the following code (from 
"gstmm/element.cc"):

namespace Gst
{

Glib::RefPtr<Gst::Element> wrap(GstElement* object, bool take_copy)
{
 return Glib::RefPtr<Gst::Element>( dynamic_cast<Gst::Element*> 
(Glib::wrap_auto ((GObject*)(object), take_copy)) );
 //We use dynamic_cast<> in case of multiple inheritance.
}

} /* namespace Gst */

What I'm trying to do is run the debugger across all the code and see 
where I'm encountering the problem.  I can see the gstreammermm code, 
but I can't see the glibmm, gstreamer and other library code because my 
distribution has separated the libraries (like glibmm, gtkmm, gstreamer) 
from the symbols (by stripping).  They provide debugging packages with 
the symbols, but I can't figure out how to get gdb to show me the source 
code using the debugging packages.

I will post in the gdb list and see if someone there can give me some 
guidance, but yes, Murray is right about the wrap(...) and I still 
cannot get a Gst::Element to be created.  Anyone have an idea as to how 
I can have access to the source of libraries when debugging?  Thanks.

-Jose