1use crate::base_box; 2use crate::mp4box::mdia::MdiaBox; 3use crate::mp4box::tkhd::TkhdBox; 4 5base_box! { 6 box (b"trak", Trak, TrakBox) children { 7 tkhd: TkhdBox, 8 mdia: MdiaBox, 9 } 10}