get_child_boxes   165 libheif/box.h      std::vector<std::shared_ptr<Box>> get_child_boxes(uint32_t short_type) const;
get_child_boxes   267 libheif/heif_file.cc   std::vector<std::shared_ptr<Box>> infe_boxes = m_iinf_box->get_child_boxes(fourcc("infe"));