video_test.vala

using My;
using My.Media;
using Gtk;
using Gst;
using Gst.Video;

static Window win;

public static void main(string[] args){
    Gtk.init(ref args);
    Gst.init(ref args);
    Youtube yt = new Youtube("http://www.youtube.com/watch?v=1aUb6mn8IoM");
    if(yt.urls.size <1)return;
    Element e = ElementFactory.make("playbin",null);
    e.set("uri",yt.urls.get(0));
    e.bus.add_watch(0,cb);
    win = new Window();
    win.destroy.connect(Gtk.main_quit);
    win.show_all();
    e.set_state(Gst.State.PLAYING);
    Gtk.main();
}

static bool cb(Gst.Bus bus, Gst.Message message){
    if(message.get_structure() == null)return true;
    if(message.get_structure().get_name() == null)return true;
    if(message.get_structure().get_name() == "prepare-window-handle"){
        (message.src as Gst.Video.Overlay).set_window_handle((uint*)Gdk.X11Window.get_xid(win.get_window()));
    }
    return true;
}