[ancillary_data_descriptor.DataIdentifier]
# Bit field
Bits = 8
0x01 = DVD-Video Ancillary Data (ETSI TS 101 154)
0x02 = Extended Ancillary Data (ETSI TS 101 154)
0x04 = Announcement Switching Data (ETSI TS 101 154)
0x08 = DAB Ancillary Data (ETSI EN 300 401)
0x10 = Scale Factor Error Check (ScF-CRC) (ETSI TS 101 154)
0x20 = MPEG-4 ancillary data (ETSI TS 101 154)
0x40 = RDS via UECP (ETSI TS 101 154)
0x80 = reserved_0 for future use
