p_new->p_callback_list = NULL;
vlc_mutex_init(p_libvlc_int, &p_new->instance_lock);
vlc_mutex_init(p_libvlc_int, &p_new->event_callback_lock);
p_new->p_callback_list = NULL;
vlc_mutex_init(p_libvlc_int, &p_new->instance_lock);
vlc_mutex_init(p_libvlc_int, &p_new->event_callback_lock);