[v 0.10] Gst::init() is slow

[Tristan Matthews]

>
> On Sat, 2012-09-08 at 13:19 +0300, Jiergir Ogoerg wrote:
> > Hi,
> > Gst::init() takes like 100+ ms, on rare occasions it takes even
> > longer, like over 2-4 seconds. Is it normal?
> >
> > To combat this I do Gst::init() in another pthread for my gui app to
> > show up instantly as usually.
>

Rather than going to the trouble of calling Gst::init in a new thread, why
not just call it in an idle callback? This way your GUI window will still
show up right away, while Gst::init() is called asynchronously. You just
have to be sure that Gst::init has finished (hence the flag) before using
it:

// compile with:
// c++ gst.cpp -o gst `pkg-config --cflags --libs gtkmm-3.0
gstreamermm-0.10`

class Example : public Gtk::Window {
    public:
        Example() : gst_loaded_(false) {
            Glib::signal_idle().connect(sigc::mem_fun(*this,
&Example::load_gst));
        }

    private:
        bool load_gst() {
            Gst::init();
            std::cout << "Finished loading gst!" << std::endl;
            gst_loaded_ = true;·
            return false;
        }

    bool gst_loaded_;
};

int main(int argc, char **argv)
{
    Glib::RefPtr<Gtk::Application> app = Gtk::Application::create(argc,
argv, "org.gtkmm.example");
    Example example;
    app->run(example);
    return 0;
}


-- 
Tristan Matthews
web: http://tristanswork.blogspot.com
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