class Statistics:
def __init__(self, psize=188, pcap=False, interval_s=1, skip_cc_err_for_first_ms=100):
self.__pcap = pcap
self.__stat = None
self.__stat_prev = None
self.__stat_program_prev = None
self.__interval = interval_s
self.__psize = psize * 8
self.first_pk_dt = None
self.__last_dt = None
self.__current_dt = None
self.__skip_cc_err_for_ms = skip_cc_err_for_first_ms
self.__start_timer()
self.monitoring_start_dt = None
self.monitoring_end_dt = None
self.pat_received_dt = None
self.pmt_received_dt = None
self.cat_received_dt = None
self.sdt_received_dt = None
self.programs = Programs()
self.viewer = Viewer()
# Events
self.onStatReady = Event() # Fired for each stat interval
self.onFinalStatReady = Event() # Fired when final start is ready
def __start_timer(self):
self.__timer = threading.Timer(self.__interval, self.__generate_stat)
self.__timer.start()
def update_programs_info(self, dt: datetime, programs: Programs, pat=None, pmt=None, cat=None, sdt=None):
self.programs = copy.deepcopy(programs)
if pat is not None:
self.pat_received_dt = dt
if pmt is not None:
self.pmt_received_dt = dt
if cat is not None:
self.cat_received_dt = dt
if sdt is not None:
self.sdt_received_dt = dt
"""def show_table_data(self, dt: datetime, programs: Programs, sdt=None, bat=None, nit=None):
if sdt is not None:
self.viewer.print_sdt(sdt, dt=dt)
if bat is not None:
self.viewer.print_bat(bat, dt=dt)"""
def update_stat(self, dpk: TSPacket, rsync: int, pat=None, pmt=None, cat=None, crc32_ok=None, pcr_pid=False,
pes=None):
if self.first_pk_dt is None:
self.first_pk_dt = dpk.dt
pid_stat = None
is_new_pid = False
index = 0
if self.__stat is None:
self.__stat = list()
else:
# Find stat object for pid
for stat in self.__stat:
if stat['pid'] == dpk.tsh_pid:
pid_stat = stat
break
index += 1
if pid_stat is None:
pid_stat = {'pid': dpk.tsh_pid, 'stat': PidStat()}
is_new_pid = True
# Packet count
pid_stat['stat'].Packet_count += 1
if dpk.tsh_tsc != 0:
pid_stat['stat'].Scrambled_count += 1
# Rsync
if rsync != 0:
pid_stat['stat'].TS_sync_loss += 1
# Sync byte error
if dpk.tsh_sync != 71:
pid_stat['stat'].Sync_byte_error += 1
# PAT_error
# PAT does not occur at least every 0,5 s
# a PID 0x0000 does not contain a table_id 0x00 (i.e. a PAT)
# Scrambling_control_field is not 00 for PID 0x0000
if pat is not None:
if (pid_stat['stat'].x_pam_dt is not None
and (pid_stat['stat'].x_pam_dt + datetime.timedelta(milliseconds=500) < dpk.dt
or dpk.tsh_tsc != 0 or pat.table_id != 0)):
pid_stat['stat'].PAT_error += 1
pid_stat['stat'].x_pam_dt = dpk.dt
# CC check
# Incorrect packet order
# a packet occurs more than twice
# lost packet
# The continuity_counter shall not be incremented when
# the adaptation_field_control of the packet equals '00' or '10'
# or PID = 0x1FFF - Null Packet
if dpk.tsh_pid != 8191 and dpk.tsh_afc not in [0, 2]:
if pid_stat['stat'].cc is not None:
if pid_stat['stat'].cc == dpk.tsh_cc:
if pid_stat['stat'].x_cc_repeated:
pid_stat['stat'].x_cc_repeated = False
# Skip CC_error for first self.__skip_cc_err_for_ms
if self.__skip_cc_err_for_ms is not None:
if(self.first_pk_dt + datetime.timedelta(milliseconds=self.__skip_cc_err_for_ms) < dpk.dt):
self.__skip_cc_err_for_ms = None
pid_stat['stat'].CC_errors += 1
"""else:
print('CC_error skipped') """ # Debug
else:
pid_stat['stat'].CC_errors += 1
#print('{} CC_error PID=0x{:04X} CC={}'.format(dpk.dt, dpk.tsh_pid, dpk.tsh_cc)) # Debug
else:
pid_stat['stat'].x_cc_repeated = True
elif ((dpk.tsh_cc > 15
or (pid_stat['stat'].cc < 15 and pid_stat['stat'].cc + 1 != dpk.tsh_cc)
or (pid_stat['stat'].cc == 15 and dpk.tsh_cc != 0))):
# Skip CC_error for first self.__skip_cc_err_for_ms
if self.__skip_cc_err_for_ms is not None:
if (self.first_pk_dt + datetime.timedelta(milliseconds=self.__skip_cc_err_for_ms) < dpk.dt):
self.__skip_cc_err_for_ms = None
pid_stat['stat'].CC_errors += 1
"""else:
print('CC_error skipped') """ # Debug
else:
pid_stat['stat'].CC_errors += 1
#print('{} CC_error PID=0x{:04X} CC={}'.format(dpk.dt, dpk.tsh_pid, dpk.tsh_cc)) # Debug
pid_stat['stat'].cc = dpk.tsh_cc
# PMT_error
# Sections with table_id 0x02, (i.e. a PMT), do not
# occur at least every 0,5 s on the PID which is referred to in the PAT
# Scrambling_control_field is not 00 for all PIDs containing sections with table_id 0x02 (i.e. a PMT)
if pmt is not None:
if (pid_stat['stat'].x_pmt_dt is not None
and (pid_stat['stat'].x_pmt_dt + datetime.timedelta(milliseconds=500) < dpk.dt
or dpk.tsh_tsc != 0 or pmt.table_id != 2)):
pid_stat['stat'].PMT_error += 1
pid_stat['stat'].x_pmt_dt = dpk.dt
# PID_error
# It is checked whether there exists a data stream for each PID that occurs. This error might occur
# where TS are multiplexed, or demultiplexed and again remultiplexed.
# The user specified period should not exceed 5 s for video or audio PIDs (see note). Data services
# and audio services with ISO 639 [i.17] language descriptor with type greater than '0' should be
# excluded from this 5 s limit.
# NOTE: For PIDs carrying other information such as sub-titles, data services or audio services with
# ISO 639 [i.17] language descriptor with type greater than '0', the time between two consecutive
# packets of the same PID may be significantly longer.
if pid_stat['stat'].x_pid_dt is not None and pid_stat['stat'].x_pid_dt + datetime.timedelta(seconds=5) < dpk.dt:
pid_stat['stat'].PID_error += 1
pid_stat['stat'].x_pid_dt = dpk.dt
# Transport_error
# Transport_error_indicator in the TS-Header is set to "1"
if dpk.tsh_tei == 1:
pid_stat['stat'].Transport_error += 1
# CRC_error
# CRC error occurred in CAT, PAT, PMT, NIT, EIT, BAT, SDT or TOT table
if crc32_ok is not None and crc32_ok is False:
pid_stat['stat'].CRC_error += 1
# PCR errors
if pcr_pid:
if pid_stat['stat'].x_pcr_dt is not None:
# PCR_discontinuity_indicator_error
# The difference between two consecutive PCR values (PCRi+1 – PCRi) is outside the range of
# 0...100 ms without the discontinuity_indicator set
if pid_stat['stat'].x_pcr_dt + datetime.timedelta(milliseconds=100) < dpk.dt and dpk.af_disc != 1:
pid_stat['stat'].PCR_discontinuity_indicator_error += 1
# PCR_repetition_error
# Time interval between two consecutive PCR values more than 40 ms
elif pid_stat['stat'].x_pcr_dt + datetime.timedelta(milliseconds=40) < dpk.dt:
pid_stat['stat'].PCR_repetition_error += 1
pid_stat['stat'].x_pcr_dt = dpk.dt
# PTS_error
# PTS repetition period more than 700 ms
if pes is not None:
if (pid_stat['stat'].x_pts_dt is not None and pes.PTS is not None
and pid_stat['stat'].x_pts_dt + datetime.timedelta(milliseconds=700) < dpk.dt):
pid_stat['stat'].PTS_error += 1
pid_stat['stat'].x_pts_dt = dpk.dt
# CAT_error
# Packets with transport_scrambling_control not 00 present, but no section with table_id = 0x01
# (i.e. a CAT) present
# Section with table_id other than 0x01 (i.e. not a CAT) found on PID 0x0001
if cat is not None and cat.table_id != 1:
pid_stat['stat'].CAT_error += 1
# Update stat data
if is_new_pid:
self.__stat.append(pid_stat)
else:
self.__stat[index] = pid_stat
# Check if need generate stat (in case of parsing pcap file instead of real stream)
self.__current_dt = dpk.dt
if self.__last_dt is None:
self.__last_dt = self.__current_dt
elif self.__pcap and self.__last_dt + datetime.timedelta(seconds=self.__interval) < self.__current_dt:
self.__timer.cancel()
self.__generate_stat()
def __generate_stat(self, restart_timer=True, is_final=False):
result = None
if self.__stat is not None:
if self.__stat_prev is None or is_final:
self.__stat_program_prev = PidStat()
self.__stat_prev = list()
# Calculate Program stat
stat_program = PidStat()
for pid in self.__stat:
stat_program.Packet_count += pid['stat'].Packet_count
stat_program.Scrambled_count += pid['stat'].Scrambled_count
stat_program.TS_sync_loss += pid['stat'].TS_sync_loss
stat_program.Sync_byte_error += pid['stat'].Sync_byte_error
stat_program.PAT_error += pid['stat'].PAT_error
stat_program.CC_errors += pid['stat'].CC_errors
stat_program.PMT_error += pid['stat'].PMT_error
stat_program.PID_error += pid['stat'].PID_error
stat_program.Transport_error += pid['stat'].Transport_error
stat_program.CRC_error += pid['stat'].CRC_error
stat_program.PCR_repetition_error += pid['stat'].PCR_repetition_error
stat_program.PCR_discontinuity_indicator_error += pid['stat'].PCR_discontinuity_indicator_error
stat_program.PTS_error += pid['stat'].PTS_error
stat_program.CAT_error += pid['stat'].CAT_error
# Calculate delta between current and previous Program stat
stat_program_delta = self.__calc_delta(stat_program, self.__stat_program_prev)
# Check if any error appeared for Program
has_errors = 0
if (stat_program_delta.Scrambled_count != 0 or stat_program_delta.TS_sync_loss != 0
or stat_program_delta.Sync_byte_error != 0 or stat_program_delta.PAT_error != 0
or stat_program_delta.CC_errors != 0 or stat_program_delta.PMT_error != 0
or stat_program_delta.PID_error != 0 or stat_program_delta.Transport_error
or stat_program_delta.CRC_error != 0 or stat_program_delta.PCR_repetition_error != 0
or stat_program_delta.PCR_discontinuity_indicator_error != 0
or stat_program_delta.PTS_error != 0 or stat_program_delta.CAT_error != 0):
has_errors = 1
# Prepare stat results (program and pid bitrates)
if is_final:
time_delta = (self.__current_dt - self.first_pk_dt).total_seconds()
results_list = ['{"monitoring_start_dt":"', str(self.monitoring_start_dt),
'","monitoring_end_dt":"', str(self.monitoring_end_dt),
'","first_pk_dt":"', str(self.first_pk_dt),
'","pat_received_dt":"', str(self.pat_received_dt),
'","pmt_received_dt":"', str(self.pmt_received_dt), '"']
else:
time_delta = (self.__current_dt - self.__last_dt).total_seconds()
if time_delta == 0:
time_delta = 1
results_list = ['{"dt":"', str(self.__current_dt), '"']
# Add stat for program
results_list.extend([',"has_errors":', str(has_errors), ',"program_bitrate":',
self.__calc_bitrate(stat_program_delta.Packet_count, time_delta)])
if has_errors == 1 or is_final:
results_list.append(',"program_stat":' + str(stat_program_delta))
# Add stat for program and per pid
results_list.append(',"pids":[')
pids_stat = ''
for pid in self.__stat:
pids_stat += ('{'+'"pid":' + str(pid['pid']) + ',"bitrate":'
+ self.__calc_bitrate(pid['stat'].Packet_count
- self.__find_pid_stat_prev(pid['pid']).Packet_count,
time_delta))
if has_errors == 1 or is_final:
pids_stat += (',"stat":' + str(self.__calc_delta(pid['stat'],
self.__find_pid_stat_prev(pid['pid']))))
pids_stat += '},'
results_list.append(pids_stat[:-1] + ']')
results_list.append('}')
result = ''.join(results_list)
self.__stat_prev = copy.deepcopy(self.__stat)
self.__stat_program_prev = copy.deepcopy(stat_program)
self.__last_dt = self.__current_dt
else:
if is_final:
results_list = ['{"monitoring_start_dt":"', str(self.monitoring_start_dt),
'","monitoring_end_dt":"', str(self.monitoring_end_dt),
'","first_pk_dt":"', str(self.first_pk_dt),
'","pat_received_dt":"', str(self.pat_received_dt),
'","pmt_received_dt":"', str(self.pmt_received_dt),
'","has_errors":-1}']
result = ''.join(results_list)
else:
result = '{"dt":"' + str(datetime.datetime.now()) + '","has_errors":-1}'
if restart_timer:
self.__start_timer()
if (not is_final) and self.onStatReady.getHandlerCount() > 0:
self.onStatReady.fire(stat_result=result)
return result
def __calc_bitrate(self, packet_count: int, time_delta: float) -> str:
return str(round(packet_count*self.__psize/time_delta))
def __calc_delta(self, stat: PidStat, stat_prev: PidStat) -> PidStat:
stat_delta = PidStat()
stat_delta.Packet_count = stat.Packet_count - stat_prev.Packet_count
stat_delta.Scrambled_count = stat.Scrambled_count - stat_prev.Scrambled_count
stat_delta.TS_sync_loss = stat.TS_sync_loss - stat_prev.TS_sync_loss
stat_delta.Sync_byte_error = stat.Sync_byte_error - stat_prev.Sync_byte_error
stat_delta.PAT_error = stat.PAT_error - stat_prev.PAT_error
stat_delta.CC_errors = stat.CC_errors - stat_prev.CC_errors
stat_delta.PMT_error = stat.PMT_error - stat_prev.PMT_error
stat_delta.PID_error = stat.PID_error - stat_prev.PID_error
stat_delta.Transport_error = stat.Transport_error - stat_prev.Transport_error
stat_delta.CRC_error = stat.CRC_error - stat_prev.CRC_error
stat_delta.PCR_repetition_error = (stat.PCR_repetition_error - stat_prev.PCR_repetition_error)
stat_delta.PCR_discontinuity_indicator_error = (stat.PCR_discontinuity_indicator_error
- stat_prev.PCR_discontinuity_indicator_error)
stat_delta.PTS_error = stat.PTS_error - stat_prev.PTS_error
stat_delta.CAT_error = stat.CAT_error - stat_prev.CAT_error
return stat_delta
def __find_pid_stat_prev(self, pid: int) -> PidStat:
for pid_prev in self.__stat_prev:
if pid == pid_prev['pid']:
return pid_prev['stat']
return PidStat()
def get_stat(self) -> dict:
self.__timer.cancel()
self.__generate_stat(restart_timer=False)
stat = self.__generate_stat(restart_timer=False, is_final=True)
if self.onFinalStatReady.getHandlerCount() > 0:
self.onFinalStatReady.fire(stat_result=stat)
return json.loads(stat)
class TSReader:
""" Class for reading TS packets stream"""
def __init__(self):
"""
Initialize object
:param statistics: Statistics calss object (if statistic needed)
"""
self.__ts_parser = TSParser()
self.__programs = Programs.Programs()
# Events
self.onPacketDecoded = Event(
) # Fired for each decoded packet to collect statistic
self.onPatReceived = Event() # Fired when PAT received or updated
self.onPmtReceived = Event() # Fired when PMT received or updated
self.onCatReceived = Event() # Fired when CAT received or updated
self.onProgramSdtReceived = Event(
) # Fired when SDT related to Program ID received or updated
self.onSdtReceived = Event() # Fired when any SDT received
self.onBatReceived = Event() # Fired when any BAT received
self.onNitReceived = Event(
) # Will be fired when NIT received or updated
self.known_pids = set()
self.known_pids.add(0) # 0x0000 - Program Association Table (PAT)
self.known_pids.add(1) # 0x0001 - Conditional Access Table (CAT)
self.known_pids.add(
2) # 0x0002 - Transport Stream Description Table (TSDT)
self.known_pids.add(3) # 0x0003 - IPMP Control Information Table
self.known_pids.add(16) # 0x0010 - NIT, ST
self.known_pids.add(17) # 0x0011 - SDT, BAT, ST
self.known_pids.add(18) # 0x0012 - EIT, ST, CIT
self.known_pids.add(19) # 0x0013 - RST, ST
self.known_pids.add(20) # 0x0014 - TDT, TOT, ST
self.known_pids.add(21) # 0x0015 - network synchronization
self.known_pids.add(22) # 0x0016 - RNT
self.known_pids.add(28) # 0x001C - inband signalling
self.known_pids.add(29) # 0x001D - measurement
self.known_pids.add(30) # 0x001E - DIT
self.known_pids.add(31) # 0x001F - SIT
self.known_pids.add(
8187) # 0x1FFB - Used by DigiCipher 2/ATSC MGT metadata
self.known_pids.add(8191) # 0x1FFF - Null Packet
self.__pid_17_buffer = None
def get_programs_data(self) -> Programs.Programs:
return self.__programs
def read(self, data: bytes, dt: datetime, parse_ts=True):
"""
Read clean TS stream packets (without IP/UDP layer) and prepare statistics
:param data: Clean TS stream packet (may include several TS packets inside)
:param dt: Date and time when TS stream packet arrived
:param parse_ts: If True (by default) method parse TS header for each TS packet
"""
for pk, dpk, rsync in self.__ts_parser.parse(data, parse_ts):
# print('\t' + str(dpk))
if dpk is not None:
dpk.dt = dt
if dpk.tsh_pid == 0:
# 0x0000 - Program Association Table (PAT)
pat = self.__ts_parser.decode_pat(pk[dpk.payload:])
if self.__programs.pat is None:
self.__programs.pat = pat
if self.onPatReceived.getHandlerCount() > 0:
self.onPatReceived.fire(dt=dt,
programs=self.__programs,
pat=pat)
elif pat.crc32 != self.__programs.pat.crc32 and pat.crc32_ok:
# Check what is really updated
warn_str = '{}: PAT updated'
warn_lst = [dt]
if self.__programs.pat.table_id != pat.table_id:
warn_str += ': table_id {} -> {}'
warn_lst.extend(
[pat.table_id, self.__programs.pat.table_id])
if self.__programs.pat.ts_id != pat.ts_id:
warn_str += ': ts_id {} -> {}'
warn_lst.extend(
[pat.ts_id, self.__programs.pat.ts_id])
if self.__programs.pat.ver_num != pat.ver_num:
warn_str += ': ver_num {} -> {}'
warn_lst.extend(
[pat.ver_num, self.__programs.pat.ver_num])
set_pat_old = set(
tuple(sorted(d.items()))
for d in self.__programs.pat.prog_nums)
set_pat_new = set(
tuple(sorted(d.items())) for d in pat.prog_nums)
set_difference = set_pat_old.symmetric_difference(
set_pat_new)
if len(set_difference) > 0:
warn_str += ': prog_nums differences are {}'
warn_lst.append(set_difference)
self.__programs.update_pat(pat)
logging.warning(warn_str.format(*warn_lst))
if self.onPatReceived.getHandlerCount() > 0:
self.onPatReceived.fire(dt=dt,
programs=self.__programs,
pat=pat)
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(dpk,
rsync,
pat=pat,
crc32_ok=pat.crc32_ok)
elif dpk.tsh_pid == 1:
# 0x0001 - Conditional Access Table (CAT)
cat = self.__ts_parser.decode_cat(pk[dpk.payload:])
if self.__programs.cat is None:
self.__programs.cat = cat
if self.onCatReceived.getHandlerCount() > 0:
self.onCatReceived.fire(dt=dt,
programs=self.__programs,
cat=cat)
elif cat.crc32 != self.__programs.cat.crc32:
logging.warning('{}: CAT updated'.format(dt))
if self.onCatReceived.getHandlerCount() > 0:
self.onCatReceived.fire(dt=dt,
programs=self.__programs,
cat=cat)
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(dpk,
rsync,
cat=cat,
crc32_ok=cat.crc32_ok)
elif dpk.tsh_pid == 17:
# 0x0011 - SDT, BAT, ST
# print(dpk.dt)
parse_SDT = False
# Parse SDT only if we need Programs SDT or information about each SDT received
# Parse BAT only if we need information about each BAT received
if self.onProgramSdtReceived.getHandlerCount(
) > 0 and self.__programs.sdt is None:
if self.__programs.sdt is None:
parse_SDT = True
if self.onSdtReceived.getHandlerCount() > 0:
parse_SDT = True
res = self.__ts_parser.decode_pid_17(
pk[dpk.payload:],
parse_SDT=parse_SDT,
parse_BAT=(True
if self.onBatReceived.getHandlerCount() > 0
else False))
# Analyzing SDT
if res['sdt'] is not None:
if (self.onProgramSdtReceived.getHandlerCount() > 0
and self.__programs.sdt is None
and self.__programs.pat is not None):
for service in res['sdt'].services:
if service['service_id'] in [
program['program_number'] for program
in self.__programs.pat.prog_nums
]:
for descriptor in service['descriptors']:
if descriptor[
'descriptor_tag'] == 72: # service_descriptor
sdt = res['sdt']
sdt.services = [service]
self.__programs.sdt = sdt
self.onProgramSdtReceived.fire(
dt=dt,
programs=self.__programs,
sdt=sdt)
break
if self.onSdtReceived.getHandlerCount() > 0:
self.onSdtReceived.fire(dt=dt,
programs=self.__programs,
sdt=res['sdt'])
# Analyzing BAT
elif (True if self.onBatReceived.getHandlerCount() > 0 else
False) and res['bat'] is not None:
if self.onBatReceived.getHandlerCount() > 0:
self.onBatReceived.fire(dt=dt,
programs=self.__programs,
bat=res['bat'])
if self.onPacketDecoded.getHandlerCount() > 0:
crc32_ok = None
if res['sdt'] is not None:
crc32_ok = res['sdt'].crc32_ok
elif res['bat'] is not None:
crc32_ok = res['bat'].crc32_ok
self.onPacketDecoded.fire(dpk,
rsync,
crc32_ok=crc32_ok)
elif dpk.tsh_pid in self.__programs.get_pmt_pids():
# Program Map Table
pmt = self.__ts_parser.decode_pmt(pk[dpk.payload:])
if pmt is not None:
if self.__programs.get_prog_pmt(dpk.tsh_pid) is None:
self.__programs.set_prog_pmt(dpk.tsh_pid, pmt)
if self.onPmtReceived.getHandlerCount() > 0:
self.onPmtReceived.fire(
dt=dt, programs=self.__programs, pmt=pmt)
elif pmt.crc32 != self.__programs.get_prog_pmt(
dpk.tsh_pid).crc32 and pmt.crc32_ok:
# Check what is really updated
pmt_old = self.__programs.get_prog_pmt(dpk.tsh_pid)
warn_str = '{}: PMT updated'
warn_lst = [dt]
if pmt_old.table_id != pmt.table_id:
warn_str += ': table_id {} -> {}'
warn_lst.extend(
[pmt.table_id, pmt_old.table_id])
if pmt_old.prog_num != pmt.prog_num:
warn_str += ': prog_num {} -> {}'
warn_lst.extend(
[pmt.prog_num, pmt_old.prog_num])
if pmt_old.pcr_pid != pmt.pcr_pid:
warn_str += ': pcr_pid {} -> {}'
warn_lst.extend([pmt.pcr_pid, pmt_old.pcr_pid])
if pmt_old.ver_num != pmt.ver_num:
warn_str += ': ver_num {} -> {}'
warn_lst.extend([pmt.ver_num, pmt_old.ver_num])
set_pmt_old = set(
tuple(sorted(d.items()))
for d in pmt_old.streams)
set_pmt_new = set(
tuple(sorted(d.items())) for d in pmt.streams)
set_difference = set_pmt_old.symmetric_difference(
set_pmt_new)
if len(set_difference) > 0:
warn_str += ': streams differences are {}'
warn_lst.append(set_difference)
self.__programs.update_prog_pmt(dpk.tsh_pid, pmt)
logging.warning(warn_str.format(*warn_lst))
if self.onPmtReceived.getHandlerCount() > 0:
self.onPmtReceived.fire(
dt=dt, programs=self.__programs, pmt=pmt)
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(dpk,
rsync,
pmt=pmt,
crc32_ok=pmt.crc32_ok)
elif dpk.tsh_pid in self.__programs.get_net_pids():
# Network Information Table
logging.warning('NIT - no decoder')
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(dpk, rsync)
elif dpk.tsh_pid in self.__programs.get_stream_pids():
# Program main streams
pes = None
if dpk.tsh_afc in [1, 3]: # payload
p = pk[dpk.payload:dpk.payload + 3]
if p == b'\x00\x00\x01' and pk[
dpk.payload + 3] >= 188: # stream_id >= 188
# Packetized Elementary Stream (PES)
pes = self.__ts_parser.decode_pes(pk[dpk.payload +
3:])
#if pes.PTS_DTS_flags in [2, 3]:
# print('{} - PID=0x{:04X} stream_type={} PTS={}'.format(dpk.dt, dpk.tsh_pid, pes.stream_type, pes.PTS/90000))
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(
dpk,
rsync,
pes=pes,
pcr_pid=(True if dpk.tsh_pid
in self.__programs.get_pcr_pids() else
False))
elif dpk.tsh_pid in self.__programs.get_other_pids():
# Program other streams
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(
dpk,
rsync,
pcr_pid=(True if dpk.tsh_pid
in self.__programs.get_pcr_pids() else
False))
elif dpk.tsh_pid in self.known_pids and dpk.tsh_pid != 8191: # 0x1FFF - Null Packet
# Known PIDs
logging.warning('Known PID: 0x{:04X} - no decoder'.format(
dpk.tsh_pid))
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(dpk, rsync)
else:
if self.onPacketDecoded.getHandlerCount() > 0:
self.onPacketDecoded.fire(dpk, rsync)