ATSC Configuration

#!/usr/bin/env python
#
# PSIP DATA
#
import os

from dvbobjects.PSI.PAT import *
from dvbobjects.PSI.PMT import *
from dvbobjects.PSI.MGT import *
from dvbobjects.PSI.TVCT import *
from dvbobjects.PSI.ATSC_EIT import *

#
# Shared values
#
atsc_original_transport_stream_id = 0x0027
atsc_transport_stream_id = 0x0027
atsc1_service_id = 1
atsc1_pmt_pid = 1031
#
# Terrestrial Virtual Channel Table
#
tvct = terrestrial_virtual_channel_section(
    transport_stream_id = atsc_transport_stream_id,
    ATSC_protocol_version = 0,
    channels_loop = [
        channel_loop_item(
            short_name = "\x00\x4B\x00\x42\x00\x4B\x00\x49\x00\x2D\x00\x48\x00\x44",
            major_channel_number = 5,
            minor_channel_number = 1,
            modulation_mode = 0x04,
            carrier_frequency = 77000000, # Channel 5
            channel_TSID = atsc_transport_stream_id,
            program_number = atsc1_service_id,
            ETM_location = 0,
            access_controlled = 0,
            hidden = 0,
            hide_guide = 0,
            service_type = 0x2,
            source_id = 0x1,
            descriptors_loop = [
],
        )

    ],
    additional_descriptors_loop = [],
    version_number = 1,
    section_number = 0,
    last_section_number = 0,
    )


#
# Master Guide Table
#

mgt = master_guide_section(
    ATSC_protocol_version = 0,
    tables_loop = [
        table_loop_item(
            table_type = 0x0, # terrestrial vct
            table_type_pid = 0x1FFB,
            table_type_version_number = tvct.version_number,
            number_bytes = len(tvct.pack()),
            descriptors_loop = [],
        ),

    ],
    descriptors_loop = [],
    version_number = 1,
    section_number = 0,
    last_section_number = 0,
    )



#
# Program Association Table (ISO/IEC 13818-1 2.4.4.3)
#

pat = program_association_section(
    transport_stream_id = atsc_transport_stream_id,
        program_loop = [
            program_loop_item(
            program_number = atsc1_service_id,
            PID = atsc1_pmt_pid,
            ),
        ],
        version_number = 1,
        section_number = 0,
        last_section_number = 0,
        )

#
# Program Map Table (ISO/IEC 13818-1 2.4.4.8)
#

pmt = program_map_section(
    program_number = atsc1_service_id,
    PCR_PID = 260,
    program_info_descriptor_loop = [],
    stream_loop = [
        stream_loop_item(
            stream_type = 2, # MPEG-2 Video
            elementary_PID = 260,
            element_info_descriptor_loop = [


            ]
        ),
        stream_loop_item(
            stream_type = 129, # AC3 (Dolby) Audio
            elementary_PID = 265,
            element_info_descriptor_loop = [
                registration_descriptor(
                    format_identifier="AC-3",
                ),

                ISO_639_language_descriptor(
                     ISO_639_language_code = "eng",
                     Audio_type = 0x00,
                ),
            ],
        ),
    ],
        version_number = 1,
        section_number = 0,
        last_section_number = 0,
        )


################## TEST
eit = event_information_section(
    table_id = 0x12,
    service_id = atsc1_service_id,
    transport_stream_id = atsc_transport_stream_id,
        source_id = 0x1,
            event_loop = [
                event_loop_item(
                    event_id = 0x1,
                    title_length = 0x11,
                    start_time = 1091399416,
                    length_in_seconds = 3600,
                    title_text = multiple_string_structure(
                            number_strings = 0x1,
                            string_loop = [
                                string_loop_item(
                                    ISO639_language_code = "eng",
                                    number_segments = 0x1,
                                    segment_loop = [
                                        segment_loop_item(
                                            compression_type = 0x0,
                                            mode = 0x0,
                                            number_bytes = 0x11,
                                            compressed_string = "\x43\x61\x72\x64\x63\x61\x70\x74\x6F\x72\x20\x53\x61\x6B\x75\x72\x61",
                                        ),
                                    ],
                                ), #End string loop
                            ],
                        ), #End MSS
                    ETM_location = 0x0,
                    descriptor_loop = [],
            ),
    ],
        version_number = 1,
        section_number = 0,
        last_section_number = 0,
        )


##################################END########################

out = open("1080/pat.sec", "wb")
out.write(pat.pack())
out.close
out = open("1080/pat.sec", "wb") # python   flush bug
out.close
os.system('/usr/bin/sec2ts 0 < 1080/pat.sec > 1080/pat.ts')

out = open("1080/pmt.sec", "wb")
out.write(pmt.pack())
out.close
out = open("1080/pmt.sec", "wb") # python   flush bug
out.close
os.system('/usr/bin/sec2ts ' + str(atsc1_pmt_pid) + ' < 1080/pmt.sec > 1080/pmt.ts')


out = open("1080/mgt.sec", "wb")
out.write(mgt.pack())
out.close
out = open("1080/mgt.sec", "wb") # python   flush bug
out.close
os.system('/usr/bin/sec2ts 8187 < 1080/mgt.sec > 1080/8187.ts')

out = open("1080/tvct.sec", "wb")
out.write(tvct.pack())
out.close
out = open("1080/tvct.sec", "wb") # python   flush bug
out.close
os.system('/usr/bin/sec2ts 8187 < 1080/tvct.sec >> 1080/8187.ts')

out = open("1080/eit.sec", "wb")
out.write(eit.pack())
out.close
out = open("1080/eit.sec", "wb") # python   flush bug
out.close
os.system('/usr/bin/sec2ts < 1080/eit.sec > 1080/eit.ts')