[ISDB_component_group_descriptor.component_group_type]
# ARIB STD-B10 table 6-72
Bits = 3
0x0 = Multi-view TV service
0x1-0x7 = Undefined

[ISDB_component_group_descriptor.component_group_id]
# ARIB STD-B10 table 6-73
Bits = 4
0x0 = Main group
0x1-0xF = Sub group

[ISDB_component_group_descriptor.CA_unit_id]
# ARIB STD-B10 table 6-73
Bits = 4
0x0 = Non-CA unit group
0x1 = CA unit group including default ES group
0x2-0xF = CA unit group other than above

