2-STD-B21v5_5

ARIB STD-B21
system_id 8 0x20
input, antenna_number(7bits) 8
system_specific_search_flags{
orb_pos, main_freq_up, main_freq_down, service_id, 8 [0x00]
reserved(4bits)
}
system_specific_multiplex_selection_length 8 0x11
system_specific_multiplex_selection{
system_specific_multiplex_attributes_valid_flags{
reserved_field, center_frequency, bandwidth, constellation,
hierarchy_info, code_rate-HP_stream, code_rate-LP_stream,
guard_interval
network_id, transmission_mode,
other_frequency_flag, reserved(5bits)
8 [0x00]
8 [0x00]
}
system_specific_multiplex_selection_attributes{
currently_available, selected, reserved(6bits) 8 0x00
center_frequency
bandwidth(3bits), reserved(5bits)
32
8
[0x00000000]
[0x00]
constellation(2bits), hierarchy_info(3bits), 8 [0x00]
code_rate-HP_stream(3bits)
code_rate-LP_stream(3bits), guard_interval(2bits),
transmission_mode(2bits), other_frequency_flag
8 [0x00]
network_id
16 [0x0000]
}
}
number_of_dsit_selection_specifications 8
for (i=0; i< number_of_dsit_selection_specifications; i++) {
dsit_selection_specification [i]{
specification_length
information_type
system_specific_service_attributes_valid_flags{
reserved_fields, CA_output, org_network, transport_id,
service_id, bouquet_id, reserved(2bits)
}
system_specific_service_selection_attributes{
currently_available, reserved(7bits)
CA_output, reserved(7bits)
org_network_id
transport_stream_id
service_id
bouquet_id
}
number_of_components
8
8
8
8
8
16
16
16
16
[0x28/0x24
(/0x2C)]
0x00
0x00
[0x0000]
[0x0000]
8
for (j=0; j< number_of_components; j++) {
system_specific_component_attributes[j]{
system_specific_component_attributes_valid_flags{
reserved_fields, PID, stream_content, component_type, 8 [0x04]
iso_639_lang_code, component_tag, reserved(2bits)
}
system_specific_component_selection_attributes{
currently_available, reserved(7bits) 8 0x00
-81-