static void media_info_cb(IntPtr gcc, int width, int height, int par_n, int par_d)
{
try {
GstCameraCapturer gcc_managed = GLib.Object.GetObject(gcc, false) as GstCameraCapturer;
gcc_managed.OnMediaInfo(width, height, par_n, par_d);
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException(e, false);
}
}