public AppleTag(IsoUserDataBox box)
{
if (box == null)
{
throw new ArgumentNullException("box");
}
meta_box = box.GetChild(BoxType.Meta)
as IsoMetaBox;
if (meta_box == null)
{
meta_box = new IsoMetaBox("mdir", null);
box.AddChild(meta_box);
}
ilst_box = meta_box.GetChild(BoxType.Ilst)
as AppleItemListBox;
if (ilst_box == null)
{
ilst_box = new AppleItemListBox();
meta_box.AddChild(ilst_box);
}
}
