Gstreamer Memory Tracing using mtrace

[Randall Scheifele]

Tim,

Thanks for the clarification.  Are the one-time allocations you referred to
all done inside the gst_init call?  I could move the mtrace function call
to after the gst_init and muntrace before the gst_deinit.  However, if
these one time allocations happen all over the place I might be out of luck.

Thanks,
Randy


On Tue, Jul 23, 2013 at 7:47 AM, Tim-Philipp Müller <t.i.m at zen.co.uk> wrote:

> On Tue, 2013-07-23 at 07:33 -0500, Randall Scheifele wrote:
>
> Hi,
>
> > Has anyone attempted to use mtrace with gstreamer?  Even with the
> > simplest gstreamer program I get tons of memory not free'd errors.
> >
> >
> > For example, here is my simple program:
> >
> >
> > #include <stdio.h>
> > #include <stdlib.h>
> > #include <gst/gst.h>
> > #include <mcheck.h>
> >
> >
> > int main(int argc, char* argv[])
> > {
> > // Start memory tracing
> > mtrace();
> >
> > // Initialize gstreamer
> > gst_init(&argc, &argv);
> >
> >
> > // Cleanup gstreamer
> > gst_deinit();
> >
> >
> > // Stop memory tracing
> > muntrace();
> >
> >
> > return 0;
> > }
> >
> >
> > When I run this on my ubuntu 10.04 machine running gstreamer 0.10.28,
> > I get the following output from mtrace.  I realize that 0.10.28 is an
> > outdated version, but is my test valid?  Is there any way I can get
> > mtrace to say no memory leaked?
> >
> >
> > I am actually running gstreamer 0.10.32 on an embedded system and am
> > just playing with mtrace on the host to try and get to a point where I
> > don't get any memory errors.  If I can't get the list down I won't be
> > able to determine which errors are always there versus the ones I'm
> > interested in fixing in my application or plugins.  I've heard good
> > things about valgrind, but it is not ported for my target
> > architecture.
>
> Both GStreamer and GLib/GObject will do a number of one-time
> allocations, which will may never be cleaned up, so it's kind of
> expected that you still see allocated memory at the end.
>
> Cheers
>  -Tim
>
>
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