langcod2 (AC-3)
The landcod2 is a 8-bit unsigned integer field in an ATSC AC-3 descriptor that, were it used in ATSC A/52, would give the language of an AC-3 service.
ATSC A/53 does not permit use of this field, because it only applies to AC-3 '1+1' mode, which is not permitted by ATSC A/53.
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