class EventInformationSection(Section):
"""イベント情報セクション EIT (ARIB-STD-B10-2-5.2.7)"""
_pids = [0x12, 0x26, 0x27]
_table_ids = range(0x4E, 0x70)
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
service_id = uimsbf(16)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = bslbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
transport_stream_id = uimsbf(16)
original_network_id = uimsbf(16)
segment_last_section_number = uimsbf(8)
last_table_id = uimsbf(8)
@loop(lambda self: self.section_length - 15)
class events(Syntax):
event_id = uimsbf(16)
start_time = mjd(40)
duration = bcdtime(24)
running_status = uimsbf(3)
free_CA_mode = bslbf(1)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
CRC_32 = rpchof(32)
class with_languages(Syntax):
"""ARIB-STD-B24-1-3-9.3.1 表9-3 字幕管理データ"""
TMD = bslbf(2)
reserved10 = bslbf(6)
@case(lambda self: self.TMD == 0b10)
class with_OTM(Syntax):
OTM = otm(40)
num_languages = uimsbf(8)
@times(num_languages)
class languages(Syntax):
language_tag = bslbf(3)
reserved11 = bslbf(1)
DMF1 = bslbf(2)
DMF2 = bslbf(2)
@case(lambda self: self.DMF1 == 0b11)
class with_DC(Syntax):
DC = bslbf(8)
ISO_639_language_code = char(24)
format = bslbf(4)
TCS = bslbf(2)
rollup_mode = bslbf(2)
class LinkedDescriptionSection(Section):
"""リンク記述セクション LDT (ARIB-STD-B10-2-5.2.15)"""
_pids = [0x25]
_table_ids = [0xC7]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use_1 = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
original_network_id = uimsbf(16)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = bslbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
transport_stream_id = uimsbf(16)
original_network_id = uimsbf(16)
@loop(lambda self: self.section_length - 13)
class links(Syntax):
description_id = uimsbf(16)
reserved_future_use = bslbf(12)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
CRC_32 = rpchof(32)
class maps(Syntax):
stream_type = uimsbf(8)
reserved_1 = bslbf(3)
elementary_PID = uimsbf(13)
reserved_2 = bslbf(4)
ES_info_length = uimsbf(12)
descriptors = descriptors(ES_info_length)
class PartialContentAnnouncementSection(Section):
"""差分配信告知セクション PCAT (ARIB-STD-B10-2-5.2.12)"""
_pids = [0x22]
_table_ids = [0xC2]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use_1 = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
event_relation_id = uimsbf(16)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = bslbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
information_provider_id = uimsbf(16)
relation_type = uimsbf(4)
reserved_future_use_2 = uimsbf(4)
@loop(lambda self: self.section_length - 10)
class relations(Syntax):
node_id = uimsbf(16)
collection_mode = uimsbf(4)
reserved_future_use_1 = bslbf(4)
parent_node_id = uimsbf(16)
reference_number = uimsbf(8)
reserved_future_use_2 = bslbf(4)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
CRC_32 = rpchof(32)
class LocalEventInformationSection(Section):
"""ローカルイベント情報セクション LIT (ARIB-STD-B10-2-5.1.1)"""
_pids = [0x20]
_table_ids = [0xD0]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
event_id = uimsbf(16)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = bslbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
service_id = uimsbf(16)
transport_stream_id = uimsbf(16)
original_network_id = uimsbf(16)
@loop(lambda self: self.section_length - 15)
class events(Syntax):
local_event_id = uimsbf(16)
reserved_fugure_use = bslbf(4)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
CRC_32 = rpchof(32)
class relations(Syntax):
node_id = uimsbf(16)
collection_mode = uimsbf(4)
reserved_future_use_1 = bslbf(4)
parent_node_id = uimsbf(16)
reference_number = uimsbf(8)
reserved_future_use_2 = bslbf(4)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
class without_languages(Syntax):
"""ARIB-STD-B24-1-3-9.3.2 表9-10 字幕文データ"""
TMD = bslbf(2)
reserved10 = bslbf(6)
@case(lambda self: self.TMD in (0b01, 0b10))
class with_STM(Syntax):
STM = bcdtime(40)
class components(Syntax):
component_tag = uimsbf(8)
digirtal_recording_contorl_data = bslbf(2)
maximum_bitrate_flag = bslbf(1)
reserved_future_use = bslbf(1)
user_defined = bslbf(4)
@case(maximum_bitrate_flag)
class with_maximum_bitrate(Syntax):
maximum_bitrate = uimsbf(8)
class AccessControlDescriptor(Descriptor):
"""アクセス制御記述子 (ARIB-TR-B14 第四篇改定案 30.2.2.2"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
CA_system_ID = uimsbf(16)
transmission_type = bslbf(3)
PID = uimsbf(13)
private_data_byte = bslbf(lambda self: self.descriptor_length - 4)
class services(Syntax):
service_id = uimsbf(16)
reserved_future_use = bslbf(3)
EIT_user_defined_flags = bslbf(3)
EIT_schedule_flag = bslbf(1)
EIT_present_following_flag = bslbf(1)
running_status = uimsbf(3)
free_CA_mode = bslbf(1)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
class HierarchicalTransmissionDescriptor(Descriptor):
"""階層伝送記述子 (ARIB-STD-B10-2-6.2.22)"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
reserved_future_use_1 = bslbf(7)
quality_level = bslbf(1)
reserved_future_use_2 = bslbf(3)
reference_PID = uimsbf(13)
class VideoDecodeControlDescriptor(Descriptor):
"""ビデオデコードコントロール記述子 (ARIB-STD-B10-2-6.2.30)"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
still_picture_flag = bslbf(1)
sequence_end_code_flag = bslbf(1)
video_encode_format = bslbf(4)
reserved_future_use = bslbf(2)
class ConditionalAccessDescriptor(Descriptor):
"""限定受信方式記述子 (ARIB-TR-B14-4-3.2.2.1, ARIB-TR-B15-4-3.2.2.1)"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
CA_system_ID = uimsbf(16)
reserved = bslbf(3)
CA_PID = uimsbf(13)
private_data_byte = bslbf(lambda self: self.descriptor_length - 4)
class services(Syntax):
service_id = uimsbf(16)
start_end_flag = bslbf(1)
signal_level = bslbf(1)
reserved_future_use = bslbf(6)
area_code_length = uimsbf(8)
@loop(lambda self: self.area_code_length)
class area_codes(Syntax):
area_code = uimsbf(12)
reserved_future_use = bslbf(4)
class CountryAvailabilityDescriptor(Descriptor):
"""国別受信可否記述子(ARIB-STD-B10-2.6.2.5)"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
country_availability_flag = bslbf(1)
reserved_future_use = bslbf(7)
@loop(lambda self: self.descriptor_length - 1)
class countries(Syntax):
country_code = char(24)
class TimeAndDateSection(Section):
"""時刻日付セクション TDT (ARIB-STD-B10-2-5.2.8)"""
_pids = [0x14]
_table_ids = [0x70]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use = bslbf(1)
reserved = bslbf(2)
section_length = uimsbf(12)
JST_time = mjd(40)
class SatelliteDeliverySystemDescriptor(Descriptor):
"""衛星分配システム記述子(ARIB-STD-B10-2-6.2.6)"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
frequency = bcd(32, 6)
orbital_position = bcd(16, 1)
west_east_flag = bslbf(1)
polarisation = bslbf(2)
modulation = bslbf(5)
symbol_rate = bcd(28, 5)
FEC_inner = bslbf(4)
class TerrestrialDeliverySystemDescriptor(Descriptor):
"""地上分配システム記述子(ARIB-STD-B10-2-6.2.31)"""
descriptor_tag = uimsbf(8)
descriptor_length = uimsbf(8)
area_code = bslbf(12)
guard_interval = bslbf(2)
transmission_mode = bslbf(2)
@loop(lambda self: self.descriptor_length - 2)
class freqs(Syntax):
frequency = uimsbf(16)
class cycles(Syntax):
media_type = uimsbf(2)
pattern = uimsbf(2)
reserved_1 = bslbf(4)
schdule_range = bcd(8)
base_cycle = bcd(12)
reserved_2 = bslbf(2)
cycle_group_count = uimsbf(2)
@times(cycle_group_count)
class groups(Syntax):
num_of_segment = bcd(8)
cycle = bcd(8)
class StuffingSection(Section):
"""スタッフセクション ST (ARIB-STD-B10-2.5.2.11)"""
_table_ids = [0x72]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use = bslbf(1)
reserved = bslbf(2)
section_length = uimsbf(12)
@loop(section_length)
class data(Syntax):
data_byte = uimsbf(8)
class CommonDataSection(Section):
"""全受信機共通データセクション CDT (ARIB-STD-B21-12.2.2.2)"""
_pids = [0x29]
_table_ids = [0xC8]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use_1 = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
download_data_id = uimsbf(16)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = bslbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
original_network_id = uimsbf(16)
data_type = uimsbf(8)
reserved_future_use_2 = bslbf(4)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
# 地上デジタル放送ではdata_module_byteはCDT伝送方式サービスロゴである (ARIB-TR-B14-1-5.4.1.2)
logo_type = uimsbf(8)
reserved_future_use_3 = bslbf(7)
logo_id = uimsbf(9)
reserved_future_use_4 = bslbf(4)
logo_version = uimsbf(12)
data_size = uimsbf(16)
data_byte = raw(data_size)
CRC_32 = rpchof(32)
class AdaptationField(Syntax):
"""ISO/IEC 13818-1 2.4.3.5"""
adaptation_field_length = uimsbf(8)
discontinuity_indicator = bslbf(1)
random_access_indicator = bslbf(1)
elementary_stream_priority_indicator = bslbf(1)
PCR_flag = bslbf(1)
OPCR_flag = bslbf(1)
splicing_point_flag = bslbf(1)
transport_private_data_flag = bslbf(1)
adaptation_field_extension_flag = bslbf(1)
@case(PCR_flag)
class with_PCR(Syntax):
program_clock_reference_base = uimsbf(33)
reserved_1 = bslbf(6)
program_clock_reference_extension = uimsbf(9)
@case(OPCR_flag)
class with_OPCR(Syntax):
original_program_clock_reference_base = uimsbf(33)
reserved_2 = bslbf(6)
original_program_clock_reference_extension = uimsbf(9)
@case(splicing_point_flag)
class with_splicing(Syntax):
splice_countdown = uimsbf(8) # tcimsbf
@case(transport_private_data_flag)
class with_transport_private_data(Syntax):
transport_private_data_length = uimsbf(8)
private_data_byte = bslbf(transport_private_data_length)
class statuses(Syntax):
transport_stream_id = uimsbf(16)
original_network_id = uimsbf(16)
service_id = uimsbf(16)
event_id = uimsbf(16)
reserved_future_use = bslbf(5)
running_status = uimsbf(3)
class TimeOffsetSection(Section):
"""時刻日付オフセットセクション TOT (ARIB-STD-B10-2-5.2.9)"""
_pids = [0x14]
_table_ids = [0x73]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use = bslbf(1)
reserved1 = bslbf(2)
section_length = uimsbf(12)
JST_time = mjd(40)
reserved_2 = bslbf(4)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
CRC_32 = rpchof(32)
class CopyrightDescriptor(Descriptor):
"""著作権記述子 (ISO 13818-1 2.6.24)"""
descriptor_length = uimsbf(8)
copyright_identifier = uimsbf(32)
additional_copyright_info = bslbf(lambda self: self.descriptor_length - 4)
class transmissions(Syntax):
transmission_type_info = bslbf(8)
num_of_service = uimsbf(8)
@times(num_of_service)
class services(Syntax):
service_id = uimsbf(16)
class events(Syntax):
event_id = uimsbf(16)
start_time = mjd(40)
duration = bcdtime(24)
running_status = uimsbf(3)
free_CA_mode = bslbf(1)
descriptors_loop_length = uimsbf(12)
descriptors = descriptors(descriptors_loop_length)
class BroadcasterInformationSection(Section):
"""ブロードキャスタ情報セクション BIT (ARIB-STD-B10-2-5.2.13)"""
_pids = [0x24]
_table_ids = [0xC4]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use_1 = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
original_network_id = uimsbf(16)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = bslbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
reserved_future_use_2 = bslbf(3)
broadcast_view_propriety = bslbf(1)
first_descriptors_length = uimsbf(12)
descriptors = descriptors(first_descriptors_length)
@loop(lambda self: (self.section_length -
(self.first_descriptors_length + 11)))
class broadcasters(Syntax):
broadcaster_id = uimsbf(8)
reserved_future_use = bslbf(4)
broadcaster_descriptor_length = uimsbf(12)
descriptors = descriptors(broadcaster_descriptor_length)
CRC_32 = rpchof(32)
class SoftwareDownloadTriggerSection(Section):
"""ソフトウェアダウンロードトリガーセクション SDTT (ARIB-STD-B21-12.2.1.1)"""
_pids = [0x23, 0x28]
_table_ids = [0xC3]
table_id = uimsbf(8)
section_syntax_indicator = bslbf(1)
reserved_future_use = bslbf(1)
reserved_1 = bslbf(2)
section_length = uimsbf(12)
maker_id = uimsbf(8)
model_id = uimsbf(8)
reserved_2 = bslbf(2)
version_number = uimsbf(5)
current_next_indicator = uimsbf(1)
section_number = uimsbf(8)
last_section_number = uimsbf(8)
transport_stream_id = uimsbf(16)
original_networl_id = uimsbf(16)
service_id = uimsbf(16)
num_of_contents = uimsbf(8)
@times(num_of_contents)
class groups(Syntax):
group = bslbf(4)
target_version = uimsbf(12)
new_version = uimsbf(12)
download_level = bslbf(2)
version_indicator = bslbf(2)
content_description_length = uimsbf(12)
reserved = bslbf(4)
schedule_description_length = uimsbf(12)
schedule_timeshift_information = uimsbf(4)
@loop(schedule_description_length)
class schedules(Syntax):
start_time = mjd(40)
duration = bcdtime(24)
descriptors = descriptors(lambda self:
(self.content_description_length - self.
schedule_description_length))
CRC_32 = rpchof(32)
