linkage_preference [ATSC Semantics]
linkage_preference is an 2-bit unsigned integer field that indicates whether or not the associated program element is
Linked to another program element in the transmission.
|0 / 0x0||not linked-- this element is not linked to any other program element in the transmission|
|1 / 0x1||linked_no_preference-- There is no preference between Linked program elements|
|2 / 0x2||linked_preferred-- this element is preferred over the Linked program element in the transmission|
|3 / 0x3||linked_not_preferred-- The Linked program element is preferred over this program element|