void gf_isom_box_array_reset_parent(GF_List **child_boxes, GF_List *boxlist)
{
	u32 count, i;
	if (!boxlist) return;
	count = gf_list_count(boxlist);
	for (i = 0; i < count; i++) {
		GF_Box *a = (GF_Box *)gf_list_get(boxlist, i);
		if (a) gf_isom_box_del_parent(child_boxes, a);
	}
	gf_list_reset(boxlist);
}