tts_text_in, tts_child_text_in = multiprocessing.Pipe()
# used to send TTS text
command_connections = (vio_commands, vad_commands, asr_commands, tts_commands)
non_command_connections = (vio_record, vio_child_record,
vio_play, vio_child_play,
vad_audio_out, vad_child_audio_out,
asr_hypotheses_out, asr_child_hypotheses,
tts_text_in, tts_child_text_in)
close_event = multiprocessing.Event()
vio = VoipIO(cfg, vio_child_commands, vio_child_record, vio_child_play, close_event)
vad = VAD(cfg, vad_child_commands, vio_record, vad_child_audio_out, close_event)
asr = ASR(cfg, asr_child_commands, vad_audio_out, asr_child_hypotheses, close_event)
tts = TTS(cfg, tts_child_commands, tts_child_text_in, vio_play, close_event)
vio.start()
vad.start()
asr.start()
tts.start()
# Actively call a number configured.
#vio_commands.send(Command('make_call(destination="\'Bejcek Eduard\' <sip:4366@SECRET:5066>")', 'HUB', 'VoipIO'))
#vio_commands.send(Command('make_call(destination="sip:4366@SECRET:5066")', 'HUB', 'VoipIO'))
#vio_commands.send(Command('make_call(destination="4366")', 'HUB', 'VoipIO'))
#vio_commands.send(Command('make_call(destination="155")', 'HUB', 'VoipIO'))
count = 0
max_count = 50000
def run(self):
try:
# AIO pipes
# used to send commands to VoipIO
aio_commands, aio_child_commands = multiprocessing.Pipe()
# I read from this connection recorded audio
aio_record, aio_child_record = multiprocessing.Pipe()
# I write in audio to be played
aio_play, aio_child_play = multiprocessing.Pipe()
# VAD pipes
# used to send commands to VAD
vad_commands, vad_child_commands = multiprocessing.Pipe()
# used to read output audio from VAD
vad_audio_out, vad_child_audio_out = multiprocessing.Pipe()
# ASR pipes
# used to send commands to ASR
asr_commands, asr_child_commands = multiprocessing.Pipe()
# used to read ASR hypotheses
asr_hypotheses_out, asr_child_hypotheses = multiprocessing.Pipe()
# SLU pipes
# used to send commands to SLU
slu_commands, slu_child_commands = multiprocessing.Pipe()
# used to read SLU hypotheses
slu_hypotheses_out, slu_child_hypotheses = multiprocessing.Pipe()
# DM pipes
# used to send commands to DM
dm_commands, dm_child_commands = multiprocessing.Pipe()
# used to read DM actions
dm_actions_out, dm_child_actions = multiprocessing.Pipe()
# NLG pipes
# used to send commands to NLG
nlg_commands, nlg_child_commands = multiprocessing.Pipe()
# used to read NLG output
nlg_text_out, nlg_child_text = multiprocessing.Pipe()
# TTS pipes
# used to send commands to TTS
tts_commands, tts_child_commands = multiprocessing.Pipe()
command_connections = [
aio_commands, vad_commands, asr_commands, slu_commands,
dm_commands, nlg_commands, tts_commands
]
non_command_connections = [
aio_record, aio_child_record, aio_play, aio_child_play,
vad_audio_out, vad_child_audio_out, asr_hypotheses_out,
asr_child_hypotheses, slu_hypotheses_out, slu_child_hypotheses,
dm_actions_out, dm_child_actions, nlg_text_out, nlg_child_text
]
close_event = multiprocessing.Event()
# create the hub components
aio = AudioIO(self.cfg, aio_child_commands, aio_child_record,
aio_child_play, close_event)
vad = VAD(self.cfg, vad_child_commands, aio_record,
vad_child_audio_out, close_event)
asr = ASR(self.cfg, asr_child_commands, vad_audio_out,
asr_child_hypotheses, close_event)
slu = SLU(self.cfg, slu_child_commands, asr_hypotheses_out,
slu_child_hypotheses, close_event)
dm = DM(self.cfg, dm_child_commands, slu_hypotheses_out,
dm_child_actions, close_event)
nlg = NLG(self.cfg, nlg_child_commands, dm_actions_out,
nlg_child_text, close_event)
tts = TTS(self.cfg, tts_child_commands, nlg_text_out, aio_play,
close_event)
# start the hub components
aio.start()
vad.start()
asr.start()
slu.start()
dm.start()
nlg.start()
tts.start()
self.cfg['Logging']['session_logger'].set_close_event(
self.close_event)
self.cfg['Logging']['session_logger'].set_cfg(self.cfg)
self.cfg['Logging']['session_logger'].start()
# init the system
call_start = 0
call_back_time = -1
call_back_uri = None
s_voice_activity = False
s_last_voice_activity_time = 0
u_voice_activity = False
u_last_voice_activity_time = 0
s_last_dm_activity_time = 0
hangup = False
call_start = time.time()
self.cfg['Logging']['system_logger'].session_start("@LOCAL_CALL")
self.cfg['Logging']['system_logger'].session_system_log(
'config = ' + str(self.cfg))
self.cfg['Logging']['session_logger'].session_start(
self.cfg['Logging']['system_logger'].get_session_dir_name())
self.cfg['Logging']['session_logger'].config('config = ' +
str(self.cfg))
self.cfg['Logging']['session_logger'].header(
self.cfg['Logging']["system_name"],
self.cfg['Logging']["version"])
self.cfg['Logging']['session_logger'].input_source("aio")
while 1:
# Check the close event.
if self.close_event.is_set():
print 'Received close event in: %s' % multiprocessing.current_process(
).name
return
time.sleep(self.cfg['Hub']['main_loop_sleep_time'])
if call_back_time != -1 and call_back_time < time.time():
aio_commands.send(Command('make_call(destination="%s")' % \
call_back_uri, 'HUB', 'AIO'))
call_back_time = -1
call_back_uri = None
if vad_commands.poll():
command = vad_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "speech_start":
u_voice_activity = True
if command.parsed['__name__'] == "speech_end":
u_voice_activity = False
u_last_voice_activity_time = time.time()
if asr_commands.poll():
command = asr_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if slu_commands.poll():
command = slu_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if dm_commands.poll():
command = dm_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "hangup":
# prepare for ending the call
hangup = True
if command.parsed['__name__'] == "dm_da_generated":
# record the time of the last system generated dialogue act
s_last_dm_activity_time = time.time()
if nlg_commands.poll():
command = nlg_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if tts_commands.poll():
command = tts_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
current_time = time.time()
# stop processes
aio_commands.send(Command('stop()', 'HUB', 'AIO'))
vad_commands.send(Command('stop()', 'HUB', 'VAD'))
asr_commands.send(Command('stop()', 'HUB', 'ASR'))
slu_commands.send(Command('stop()', 'HUB', 'SLU'))
dm_commands.send(Command('stop()', 'HUB', 'DM'))
nlg_commands.send(Command('stop()', 'HUB', 'NLG'))
tts_commands.send(Command('stop()', 'HUB', 'TTS'))
# clean connections
for c in command_connections:
while c.poll():
c.recv()
for c in non_command_connections:
while c.poll():
c.recv()
# wait for processes to stop
# do not join, because in case of exception the join will not be successful
# aio.join()
# vad.join()
# asr.join()
# slu.join()
# dm.join()
# nlg.join()
# tts.join()
#cfg['Logging']['session_logger'].join()
except KeyboardInterrupt:
print 'KeyboardInterrupt exception in: %s' % multiprocessing.current_process(
).name
self.close_event.set()
return
except:
self.cfg['Logging']['system_logger'].exception(
'Uncaught exception in AHUB process.')
self.close_event.set()
raise
print 'Exiting: %s. Setting close event' % multiprocessing.current_process(
).name
self.close_event.set()
def run(self):
try:
cfg = self.cfg
vio_commands, vio_child_commands = multiprocessing.Pipe(
) # used to send commands to VoipIO
vio_record, vio_child_record = multiprocessing.Pipe(
) # I read from this connection recorded audio
vio_play, vio_child_play = multiprocessing.Pipe(
) # I write in audio to be played
vad_commands, vad_child_commands = multiprocessing.Pipe(
) # used to send commands to VAD
vad_audio_out, vad_child_audio_out = multiprocessing.Pipe(
) # used to read output audio from VAD
asr_commands, asr_child_commands = multiprocessing.Pipe(
) # used to send commands to ASR
asr_hypotheses_out, asr_child_hypotheses = multiprocessing.Pipe(
) # used to read ASR hypotheses
slu_commands, slu_child_commands = multiprocessing.Pipe(
) # used to send commands to SLU
slu_hypotheses_out, slu_child_hypotheses = multiprocessing.Pipe(
) # used to read SLU hypotheses
dm_commands, dm_child_commands = multiprocessing.Pipe(
) # used to send commands to DM
dm_actions_out, dm_child_actions = multiprocessing.Pipe(
) # used to read DM actions
nlg_commands, nlg_child_commands = multiprocessing.Pipe(
) # used to send commands to NLG
nlg_text_out, nlg_child_text = multiprocessing.Pipe(
) # used to read NLG output
tts_commands, tts_child_commands = multiprocessing.Pipe(
) # used to send commands to TTS
command_connections = [
vio_commands, vad_commands, asr_commands, slu_commands,
dm_commands, nlg_commands, tts_commands
]
non_command_connections = [
vio_record, vio_child_record, vio_play, vio_child_play,
vad_audio_out, vad_child_audio_out, asr_hypotheses_out,
asr_child_hypotheses, slu_hypotheses_out, slu_child_hypotheses,
dm_actions_out, dm_child_actions, nlg_text_out, nlg_child_text
]
vio = self.voice_io_cls(self.cfg, vio_child_commands,
vio_child_record, vio_child_play,
self.close_event)
vad = VAD(self.cfg, vad_child_commands, vio_record,
vad_child_audio_out, self.close_event)
asr = ASR(self.cfg, asr_child_commands, vad_audio_out,
asr_child_hypotheses, self.close_event)
slu = SLU(self.cfg, slu_child_commands, asr_hypotheses_out,
slu_child_hypotheses, self.close_event)
dm = DM(self.cfg, dm_child_commands, slu_hypotheses_out,
dm_child_actions, self.close_event)
nlg = NLG(self.cfg, nlg_child_commands, dm_actions_out,
nlg_child_text, self.close_event)
tts = TTS(self.cfg, tts_child_commands, nlg_text_out, vio_play,
self.close_event)
vio.start()
vad.start()
asr.start()
slu.start()
dm.start()
nlg.start()
tts.start()
self.write_pid_file([['vio', vio.pid], ['vad', vad.pid],
['asr', asr.pid], ['slu', slu.pid],
['dm', dm.pid], ['nlg', nlg.pid],
['tts', tts.pid]])
cfg['Logging']['session_logger'].set_close_event(self.close_event)
cfg['Logging']['session_logger'].set_cfg(cfg)
cfg['Logging']['session_logger'].start()
cfg['Logging']['session_logger'].cancel_join_thread()
# init the system
call_start = 0
call_back_time = -1
call_back_uri = None
number_of_turns = -1
s_voice_activity = False
s_last_voice_activity_time = 0
u_voice_activity = False
u_last_voice_activity_time = 0
s_last_dm_activity_time = 0
u_last_input_timeout = 0
call_connected = False
hangup = False
ncalls = 0
outstanding_nlg_da = None
call_db = CallDB(self.cfg, self.cfg[self.hubname]['call_db'],
self.cfg[self.hubname]['period'])
#call_db.log()
while 1:
# Check the close event.
if self.close_event.is_set():
print 'Received close event in: %s' % multiprocessing.current_process(
).name
return
time.sleep(self.cfg['Hub']['main_loop_sleep_time'])
if call_back_time != -1 and call_back_time < time.time():
vio_commands.send(
Command('make_call(destination="%s")' % call_back_uri,
'HUB', 'VoipIO'))
call_back_time = -1
call_back_uri = None
# read all messages
if vio_commands.poll():
command = vio_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "incoming_call":
self.cfg['Logging']['system_logger'].session_start(
command.parsed['remote_uri'])
self.cfg['Logging'][
'session_logger'].session_start(
self.cfg['Logging']
['system_logger'].get_session_dir_name())
self.cfg['Logging'][
'system_logger'].session_system_log(
'config = ' + unicode(self.cfg))
self.cfg['Logging']['session_logger'].config(
'config = ' + unicode(self.cfg))
self.cfg['Logging']['session_logger'].header(
self.cfg['Logging']["system_name"],
self.cfg['Logging']["version"])
self.cfg['Logging']['session_logger'].input_source(
"voip")
self.cfg['Analytics'].start_session(
command.parsed['remote_uri'])
self.cfg['Analytics'].track_event(
'vhub', 'incoming_call',
command.parsed['remote_uri'])
if command.parsed['__name__'] == "rejected_call":
call_back_time = time.time() + self.cfg['VoipHub'][
'wait_time_before_calling_back']
call_back_uri = command.parsed['remote_uri']
self.cfg['Analytics'].track_event(
'vhub', 'rejected_call',
command.parsed['remote_uri'])
if command.parsed[
'__name__'] == "rejected_call_from_blacklisted_uri":
remote_uri = command.parsed['remote_uri']
num_all_calls, total_time, last_period_num_calls, last_period_total_time, last_period_num_short_calls = call_db.get_uri_stats(
remote_uri)
m = []
m.append('')
m.append('=' * 120)
m.append(
'Rejected incoming call from blacklisted URI: %s'
% remote_uri)
m.append('-' * 120)
m.append('Total calls: %d' %
num_all_calls)
m.append('Total time (min): %0.1f' %
(total_time / 60.0, ))
m.append('Last period short calls: %d' %
last_period_num_short_calls)
m.append('Last period total calls: %d' %
last_period_num_calls)
m.append('Last period total time (min): %0.1f' %
(last_period_total_time / 60.0, ))
m.append('=' * 120)
m.append('')
self.cfg['Logging']['system_logger'].info(
'\n'.join(m))
self.cfg['Analytics'].track_event(
'vhub', 'rejected_call_from_blacklisted_uri',
command.parsed['remote_uri'])
if command.parsed['__name__'] == "call_connecting":
self.cfg['Analytics'].track_event(
'vhub', 'call_connecting',
command.parsed['remote_uri'])
if command.parsed['__name__'] == "call_confirmed":
remote_uri = command.parsed['remote_uri']
num_all_calls, total_time, last_period_num_calls, last_period_total_time, last_period_num_short_calls = call_db.get_uri_stats(
remote_uri)
m = []
m.append('')
m.append('=' * 120)
m.append('Incoming call from : %s' %
remote_uri)
m.append('-' * 120)
m.append('Total calls: %d' %
num_all_calls)
m.append('Total time (min): %0.1f' %
(total_time / 60.0, ))
m.append('Last period short calls: %d' %
last_period_num_short_calls)
m.append('Last period total calls: %d' %
last_period_num_calls)
m.append('Last period total time (min): %0.1f' %
(last_period_total_time / 60.0, ))
m.append('-' * 120)
if last_period_num_calls > self.cfg[self.hubname]['last_period_max_num_calls'] or \
last_period_total_time > self.cfg[self.hubname]['last_period_max_total_time'] or \
last_period_num_short_calls > self.cfg[self.hubname]['last_period_max_num_short_calls'] :
# prepare for ending the call
call_connected = True
call_start = time.time()
number_of_turns = -1
s_voice_activity = True
s_last_voice_activity_time = time.time()
u_voice_activity = False
u_last_voice_activity_time = time.time()
u_last_input_timeout = time.time()
hangup = True
self.cfg['Logging']['session_logger'].turn(
"system")
tts_commands.send(
Command(
'synthesize(text="%s",log="true")' %
self.cfg[self.hubname]
['limit_reached_message'], 'HUB',
'TTS'))
vio_commands.send(
Command(
'black_list(remote_uri="%s",expire="%d")'
% (remote_uri, time.time() + self.cfg[
self.hubname]['blacklist_for']),
'HUB', 'VoipIO'))
m.append('CALL REJECTED')
else:
# init the system
call_connected = True
call_start = time.time()
number_of_turns = 0
s_voice_activity = False
s_last_voice_activity_time = 0
u_voice_activity = False
u_last_voice_activity_time = time.time()
u_last_input_timeout = time.time()
hangup = False
dm_commands.send(
Command('new_dialogue()', 'HUB', 'DM'))
m.append('CALL ACCEPTED')
m.append('=' * 120)
m.append('')
self.cfg['Logging']['system_logger'].info(
'\n'.join(m))
call_db.track_confirmed_call(remote_uri)
self.cfg['Analytics'].track_event(
'vhub', 'call_confirmed',
command.parsed['remote_uri'])
if command.parsed['__name__'] == "call_disconnected":
# flush vio, when flushed, vad will be flushed
vio_commands.send(
Command('flush()', 'HUB', 'VoipIO'))
self.cfg['Logging']['system_logger'].session_end()
self.cfg['Logging']['session_logger'].session_end()
remote_uri = command.parsed['remote_uri']
call_db.track_disconnected_call(remote_uri)
call_connected = False
number_of_turns = -1
ncalls += 1
self.cfg['Analytics'].track_event(
'vhub', 'call_disconnected',
command.parsed['remote_uri'])
dm_commands.send(
Command('prepare_new_dialogue()', 'HUB', 'DM'))
if command.parsed[
'__name__'] == "play_utterance_start":
s_voice_activity = True
s_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "play_utterance_end":
s_voice_activity = False
s_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "flushed":
# flush vad, when flushed, asr will be flushed
vad_commands.send(Command('flush()', 'HUB', 'VAD'))
if command.parsed['__name__'] == "flushed_out":
# process the outstanding DA if necessary
if outstanding_nlg_da:
nlg_commands.send(
DMDA(outstanding_nlg_da, 'HUB', 'NLG'))
outstanding_nlg_da = None
if vad_commands.poll():
command = vad_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "speech_start":
u_voice_activity = True
# interrupt the talking system
# this will be replaced with pausing the system when the necessary extension of pjsip
# is implemented
if s_voice_activity and s_last_voice_activity_time + 0.02 < current_time:
# if the system is still talking then flush the output
self.cfg['Logging']['session_logger'].barge_in(
"system")
# when a user barge in into the output, all the output pipe line
# must be flushed
nlg_commands.send(
Command('flush()', 'HUB', 'NLG'))
s_voice_activity = False
s_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "speech_end":
u_voice_activity = False
u_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "flushed":
# flush asr, when flushed, slu will be flushed
asr_commands.send(Command('flush()', 'HUB', 'ASR'))
if asr_commands.poll():
command = asr_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, ASRHyp):
vio_commands.send(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush slu, when flushed, dm will be flushed
slu_commands.send(Command('flush()', 'HUB', 'SLU'))
if slu_commands.poll():
command = slu_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush dm, when flushed, nlg will be flushed
dm_commands.send(Command('flush()', 'HUB', 'DM'))
dm_commands.send(
Command('end_dialogue()', 'HUB', 'DM'))
if dm_commands.poll():
command = dm_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "hangup":
# prepare for ending the call
hangup = True
self.cfg['Analytics'].track_event(
'vhub', 'system_hangup')
if command.parsed['__name__'] == "flushed":
# flush nlg, when flushed, tts will be flushed
nlg_commands.send(Command('flush()', 'HUB', 'NLG'))
elif isinstance(command, DMDA):
# record the time of the last system generated dialogue act
s_last_dm_activity_time = time.time()
number_of_turns += 1
if command.da != "silence()":
# if the DM generated non-silence dialogue act, then continue in processing it
if s_voice_activity and s_last_voice_activity_time + 0.02 < current_time:
# if the system is still talking then flush the output
self.cfg['Logging']['session_logger'].barge_in(
"system")
# when a user barge in into the output, all the output pipe line
# must be flushed
nlg_commands.send(
Command('flush()', 'HUB', 'NLG'))
s_voice_activity = False
s_last_voice_activity_time = time.time()
# the DA will be send when all the following components are flushed
outstanding_nlg_da = command.da
else:
nlg_commands.send(
DMDA(command.da, "HUB", "NLG"))
if nlg_commands.poll():
command = nlg_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, TTSText):
vio_commands.send(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush tts, when flushed, vio will be flushed
tts_commands.send(Command('flush()', 'HUB', 'TTS'))
if tts_commands.poll():
command = tts_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush vio_out
vio_commands.send(
Command('flush_out()', 'HUB', 'VIO'))
current_time = time.time()
s_diff = current_time - s_last_voice_activity_time
u_diff = current_time - u_last_voice_activity_time
t_diff = current_time - u_last_input_timeout
timeout = self.cfg['DM']['input_timeout']
if call_connected and \
not s_voice_activity and not u_voice_activity and \
s_diff > timeout and \
u_diff > timeout and \
t_diff > timeout:
u_last_input_timeout = time.time()
print 'timeout!!!!!', time.time()
dm_commands.send(
Command(
'timeout(silence_time="%0.3f")' %
min(s_diff, u_diff), 'HUB', 'DM'))
if hangup and s_last_dm_activity_time + 2.0 < current_time and \
s_voice_activity == False and s_last_voice_activity_time + 2.0 < current_time:
# we are ready to hangup only when all voice activity is finished
hangup = False
vio_commands.send(Command('hangup()', 'HUB', 'VoipIO'))
if number_of_turns != -1 and current_time - call_start > self.cfg[self.hubname]['hard_time_limit'] or \
number_of_turns > self.cfg[self.hubname]['hard_turn_limit']:
# hard hangup due to the hard limits
call_start = 0
number_of_turns = -1
vio_commands.send(Command('hangup()', 'HUB', 'VoipIO'))
if self.ncalls != 0 and not call_connected and s_last_dm_activity_time + 5.0 < current_time and ncalls >= self.ncalls:
break
# stop processes
vio_commands.send(Command('stop()', 'HUB', 'VoipIO'))
vad_commands.send(Command('stop()', 'HUB', 'VAD'))
asr_commands.send(Command('stop()', 'HUB', 'ASR'))
slu_commands.send(Command('stop()', 'HUB', 'SLU'))
dm_commands.send(Command('stop()', 'HUB', 'DM'))
nlg_commands.send(Command('stop()', 'HUB', 'NLG'))
tts_commands.send(Command('stop()', 'HUB', 'TTS'))
# clean connections
for c in command_connections:
while c.poll():
c.recv()
for c in non_command_connections:
while c.poll():
c.recv()
# wait for processes to stop
# do not join, because in case of exception the join will not be successful
# vio.join()
# vad.join()
# asr.join()
# slu.join()
# dm.join()
# nlg.join()
# tts.join()
#cfg['Logging']['session_logger'].join()
except KeyboardInterrupt:
print 'KeyboardInterrupt exception in: %s' % multiprocessing.current_process(
).name
self.close_event.set()
return
except:
self.cfg['Logging']['system_logger'].exception(
'Uncaught exception in VHUB process.')
self.close_event.set()
raise
print 'Exiting: %s. Setting close event' % multiprocessing.current_process(
).name
self.close_event.set()
def run(self):
# AIO pipes
# used to send commands to VoipIO
aio_commands, aio_child_commands = multiprocessing.Pipe()
# I read from this connection recorded audio
aio_record, aio_child_record = multiprocessing.Pipe()
# I write in audio to be played
aio_play, aio_child_play = multiprocessing.Pipe()
# VAD pipes
# used to send commands to VAD
vad_commands, vad_child_commands = multiprocessing.Pipe()
# used to read output audio from VAD
vad_audio_out, vad_child_audio_out = multiprocessing.Pipe()
# ASR pipes
# used to send commands to ASR
asr_commands, asr_child_commands = multiprocessing.Pipe()
# used to read ASR hypotheses
asr_hypotheses_out, asr_child_hypotheses = multiprocessing.Pipe()
# SLU pipes
# used to send commands to SLU
slu_commands, slu_child_commands = multiprocessing.Pipe()
# used to read SLU hypotheses
slu_hypotheses_out, slu_child_hypotheses = multiprocessing.Pipe()
# DM pipes
# used to send commands to DM
dm_commands, dm_child_commands = multiprocessing.Pipe()
# used to read DM actions
dm_actions_out, dm_child_actions = multiprocessing.Pipe()
# NLG pipes
# used to send commands to NLG
nlg_commands, nlg_child_commands = multiprocessing.Pipe()
# used to read NLG output
nlg_text_out, nlg_child_text = multiprocessing.Pipe()
# TTS pipes
# used to send commands to TTS
tts_commands, tts_child_commands = multiprocessing.Pipe()
command_connections = [
aio_commands, vad_commands, asr_commands, slu_commands,
dm_commands, nlg_commands, tts_commands
]
non_command_connections = [
aio_record, aio_child_record, aio_play, aio_child_play,
vad_audio_out, vad_child_audio_out, asr_hypotheses_out,
asr_child_hypotheses, slu_hypotheses_out, slu_child_hypotheses,
dm_actions_out, dm_child_actions, nlg_text_out, nlg_child_text
]
# create the hub components
close_event = multiprocessing.Event()
aio = WebIO(self.cfg, aio_child_commands, aio_child_record,
aio_child_play, close_event)
vad = VAD(self.cfg, vad_child_commands, aio_record,
vad_child_audio_out, close_event)
asr = ASR(self.cfg, asr_child_commands, vad_audio_out,
asr_child_hypotheses, close_event)
slu = SLU(self.cfg, slu_child_commands, asr_hypotheses_out,
slu_child_hypotheses, close_event)
dm = DM(self.cfg, dm_child_commands, slu_hypotheses_out,
dm_child_actions, close_event)
nlg = NLG(self.cfg, nlg_child_commands, dm_actions_out, nlg_child_text,
close_event)
tts = TTS(self.cfg, tts_child_commands, nlg_text_out, aio_play,
close_event)
# start the hub components
aio.start()
vad.start()
asr.start()
slu.start()
dm.start()
nlg.start()
tts.start()
# init the system
call_back_time = -1
call_back_uri = None
call_start = time.time()
self.cfg['Logging']['system_logger'].session_start("@LOCAL_CALL")
self.cfg['Logging']['system_logger'].session_system_log('config = ' +
str(self.cfg))
self.cfg['Logging']['session_logger'].session_start(
self.cfg['Logging']['system_logger'].get_session_dir_name())
self.cfg['Logging']['session_logger'].config('config = ' +
str(self.cfg))
self.cfg['Logging']['session_logger'].header(
self.cfg['Logging']["system_name"], self.cfg['Logging']["version"])
self.cfg['Logging']['session_logger'].input_source("aio")
while 1:
time.sleep(self.cfg['Hub']['main_loop_sleep_time'])
if call_back_time != -1 and call_back_time < time.time():
aio_commands.send(
Command('make_call(destination="%s")' % call_back_uri,
'HUB', 'AIO'))
call_back_time = -1
call_back_uri = None
if vad_commands.poll():
command = vad_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "speech_start":
pass
if command.parsed['__name__'] == "speech_end":
pass
if asr_commands.poll():
command = asr_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if slu_commands.poll():
command = slu_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if dm_commands.poll():
command = dm_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "hangup":
# prepare for ending the call
pass
if command.parsed['__name__'] == "dm_da_generated":
# record the time of the last system generated dialogue act
pass
if nlg_commands.poll():
command = nlg_commands.recv()
# TODO HACK
# self.cfg['Logging']['system_logger'].info(command)
if tts_commands.poll():
command = tts_commands.recv()
# TODO HACK
# self.cfg['Logging']['system_logger'].info(command)
current_time = time.time()
# stop processes
aio_commands.send(Command('stop()', 'HUB', 'AIO'))
vad_commands.send(Command('stop()', 'HUB', 'VAD'))
asr_commands.send(Command('stop()', 'HUB', 'ASR'))
slu_commands.send(Command('stop()', 'HUB', 'SLU'))
dm_commands.send(Command('stop()', 'HUB', 'DM'))
nlg_commands.send(Command('stop()', 'HUB', 'NLG'))
tts_commands.send(Command('stop()', 'HUB', 'TTS'))
# clean connections
for c in command_connections:
while c.poll():
c.recv()
for c in non_command_connections:
while c.poll():
c.recv()
# wait for processes to stop
aio.join()
vad.join()
tts.join()
tts_commands, tts_child_commands = multiprocessing.Pipe() # used to send commands to TTS
tts_text_in, tts_child_text_in = multiprocessing.Pipe() # used to send TTS text
command_connections = [aio_commands, vad_commands, asr_commands, tts_commands]
non_command_connections = [aio_record, aio_child_record,
aio_play, aio_child_play,
vad_audio_out, vad_child_audio_out,
asr_hypotheses_out, asr_child_hypotheses,
tts_text_in, tts_child_text_in]
close_event = multiprocessing.Event()
aio = AudioIO(cfg, aio_child_commands, aio_child_record, aio_child_play, close_event)
vad = VAD(cfg, vad_child_commands, aio_record, vad_child_audio_out, close_event)
asr = ASR(cfg, asr_child_commands, vad_audio_out, asr_child_hypotheses, close_event)
tts = TTS(cfg, tts_child_commands, tts_child_text_in, aio_play, close_event)
aio.start()
vad.start()
asr.start()
tts.start()
tts_text_in.send(
TTSText('Say something and the recognized text will be played back.'))
count = 0
max_count = 15000
while count < max_count:
time.sleep(cfg['Hub']['main_loop_sleep_time'])
count += 1
def run(self):
try:
# AIO pipes
# used to send commands to VoipIO
aio_commands, aio_child_commands = multiprocessing.Pipe()
# I read from this connection recorded audio
aio_record, aio_child_record = multiprocessing.Pipe()
# I write in audio to be played
aio_play, aio_child_play = multiprocessing.Pipe()
# VAD pipes
# used to send commands to VAD
vad_commands, vad_child_commands = multiprocessing.Pipe()
# used to read output audio from VAD
vad_audio_out, vad_child_audio_out = multiprocessing.Pipe()
# ASR pipes
# used to send commands to ASR
asr_commands, asr_child_commands = multiprocessing.Pipe()
# used to read ASR hypotheses
asr_hypotheses_out, asr_child_hypotheses = multiprocessing.Pipe()
# SLU pipes
# used to send commands to SLU
slu_commands, slu_child_commands = multiprocessing.Pipe()
# used to read SLU hypotheses
slu_hypotheses_out, slu_child_hypotheses = multiprocessing.Pipe()
# DM pipes
# used to send commands to DM
dm_commands, dm_child_commands = multiprocessing.Pipe()
# used to read DM actions
dm_actions_out, dm_child_actions = multiprocessing.Pipe()
# NLG pipes
# used to send commands to NLG
nlg_commands, nlg_child_commands = multiprocessing.Pipe()
# used to read NLG output
nlg_text_out, nlg_child_text = multiprocessing.Pipe()
# TTS pipes
# used to send commands to TTS
tts_commands, tts_child_commands = multiprocessing.Pipe()
command_connections = [aio_commands, vad_commands, asr_commands,
slu_commands, dm_commands, nlg_commands,
tts_commands]
non_command_connections = [aio_record, aio_child_record,
aio_play, aio_child_play,
vad_audio_out, vad_child_audio_out,
asr_hypotheses_out, asr_child_hypotheses,
slu_hypotheses_out, slu_child_hypotheses,
dm_actions_out, dm_child_actions,
nlg_text_out, nlg_child_text]
self.close_event = multiprocessing.Event()
# create the hub components
aio = AudioIO(self.cfg, aio_child_commands, aio_child_record, aio_child_play, self.close_event)
vad = VAD(self.cfg, vad_child_commands, aio_record, vad_child_audio_out, self.close_event)
asr = ASR(self.cfg, asr_child_commands, vad_audio_out, asr_child_hypotheses, self.close_event)
slu = SLU(self.cfg, slu_child_commands, asr_hypotheses_out, slu_child_hypotheses, self.close_event)
dm = DM(self.cfg, dm_child_commands, slu_hypotheses_out, dm_child_actions, self.close_event)
nlg = NLG(self.cfg, nlg_child_commands, dm_actions_out, nlg_child_text, self.close_event)
tts = TTS(self.cfg, tts_child_commands, nlg_text_out, aio_play, self.close_event)
# start the hub components
aio.start()
vad.start()
asr.start()
slu.start()
dm.start()
nlg.start()
tts.start()
self.cfg['Logging']['session_logger'].set_close_event(self.close_event)
self.cfg['Logging']['session_logger'].set_cfg(self.cfg)
self.cfg['Logging']['session_logger'].start()
# init the system
call_start = 0
call_back_time = -1
call_back_uri = None
s_voice_activity = False
s_last_voice_activity_time = 0
u_voice_activity = False
u_last_voice_activity_time = 0
s_last_dm_activity_time = 0
hangup = False
call_start = time.time()
self.cfg['Logging']['system_logger'].session_start("@LOCAL_CALL")
self.cfg['Logging']['system_logger'].session_system_log('config = ' + str(self.cfg))
self.cfg['Logging']['session_logger'].session_start(self.cfg['Logging']['system_logger'].get_session_dir_name())
self.cfg['Logging']['session_logger'].config('config = ' + str(self.cfg))
self.cfg['Logging']['session_logger'].header(self.cfg['Logging']["system_name"], self.cfg['Logging']["version"])
self.cfg['Logging']['session_logger'].input_source("aio")
while 1:
# Check the close event.
if self.close_event.is_set():
print 'Received close event in: %s' % multiprocessing.current_process().name
return
time.sleep(self.cfg['Hub']['main_loop_sleep_time'])
if call_back_time != -1 and call_back_time < time.time():
aio_commands.send(Command('make_call(destination="%s")' % \
call_back_uri, 'HUB', 'AIO'))
call_back_time = -1
call_back_uri = None
if vad_commands.poll():
command = vad_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "speech_start":
u_voice_activity = True
if command.parsed['__name__'] == "speech_end":
u_voice_activity = False
u_last_voice_activity_time = time.time()
if asr_commands.poll():
command = asr_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if slu_commands.poll():
command = slu_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if dm_commands.poll():
command = dm_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "hangup":
# prepare for ending the call
hangup = True
if command.parsed['__name__'] == "dm_da_generated":
# record the time of the last system generated dialogue act
s_last_dm_activity_time = time.time()
if nlg_commands.poll():
command = nlg_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if tts_commands.poll():
command = tts_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
current_time = time.time()
# stop processes
aio_commands.send(Command('stop()', 'HUB', 'AIO'))
vad_commands.send(Command('stop()', 'HUB', 'VAD'))
asr_commands.send(Command('stop()', 'HUB', 'ASR'))
slu_commands.send(Command('stop()', 'HUB', 'SLU'))
dm_commands.send(Command('stop()', 'HUB', 'DM'))
nlg_commands.send(Command('stop()', 'HUB', 'NLG'))
tts_commands.send(Command('stop()', 'HUB', 'TTS'))
# clean connections
for c in command_connections:
while c.poll():
c.recv()
for c in non_command_connections:
while c.poll():
c.recv()
# wait for processes to stop
# do not join, because in case of exception the join will not be successful
# aio.join()
# vad.join()
# asr.join()
# slu.join()
# dm.join()
# nlg.join()
# tts.join()
#cfg['Logging']['session_logger'].join()
except KeyboardInterrupt:
print 'KeyboardInterrupt exception in: %s' % multiprocessing.current_process().name
self.close_event.set()
return
except:
self.cfg['Logging']['system_logger'].exception('Uncaught exception in AHUB process.')
self.close_event.set()
raise
print 'Exiting: %s. Setting close event' % multiprocessing.current_process().name
self.close_event.set()
def run(self):
try:
vio_commands, vio_child_commands = multiprocessing.Pipe() # used to send commands to VoipIO
vio_record, vio_child_record = multiprocessing.Pipe() # I read from this connection recorded audio
vio_play, vio_child_play = multiprocessing.Pipe() # I write in audio to be played
vad_commands, vad_child_commands = multiprocessing.Pipe() # used to send commands to VAD
vad_audio_out, vad_child_audio_out = multiprocessing.Pipe() # used to read output audio from VAD
asr_commands, asr_child_commands = multiprocessing.Pipe() # used to send commands to ASR
asr_hypotheses_out, asr_child_hypotheses = multiprocessing.Pipe() # used to read ASR hypotheses
slu_commands, slu_child_commands = multiprocessing.Pipe() # used to send commands to SLU
slu_hypotheses_out, slu_child_hypotheses = multiprocessing.Pipe() # used to read SLU hypotheses
dm_commands, dm_child_commands = multiprocessing.Pipe() # used to send commands to DM
dm_actions_out, dm_child_actions = multiprocessing.Pipe() # used to read DM actions
nlg_commands, nlg_child_commands = multiprocessing.Pipe() # used to send commands to NLG
nlg_text_out, nlg_child_text = multiprocessing.Pipe() # used to read NLG output
tts_commands, tts_child_commands = multiprocessing.Pipe() # used to send commands to TTS
command_connections = [vio_commands, vad_commands, asr_commands, slu_commands,
dm_commands, nlg_commands, tts_commands]
non_command_connections = [vio_record, vio_child_record,
vio_play, vio_child_play,
vad_audio_out, vad_child_audio_out,
asr_hypotheses_out, asr_child_hypotheses,
slu_hypotheses_out, slu_child_hypotheses,
dm_actions_out, dm_child_actions,
nlg_text_out, nlg_child_text]
vio = VoipIO(self.cfg, vio_child_commands, vio_child_record, vio_child_play, self.close_event)
vad = VAD(self.cfg, vad_child_commands, vio_record, vad_child_audio_out, self.close_event)
asr = ASR(self.cfg, asr_child_commands, vad_audio_out, asr_child_hypotheses, self.close_event)
slu = SLU(self.cfg, slu_child_commands, asr_hypotheses_out, slu_child_hypotheses, self.close_event)
dm = DM(self.cfg, dm_child_commands, slu_hypotheses_out, dm_child_actions, self.close_event)
nlg = NLG(self.cfg, nlg_child_commands, dm_actions_out, nlg_child_text, self.close_event)
tts = TTS(self.cfg, tts_child_commands, nlg_text_out, vio_play, self.close_event)
vio.start()
vad.start()
asr.start()
slu.start()
dm.start()
nlg.start()
tts.start()
self.write_pid_file([['vio', vio.pid], ['vad', vad.pid], ['asr', asr.pid],
['slu', slu.pid], ['dm', dm.pid], ['nlg', nlg.pid], ['tts', tts.pid]])
cfg['Logging']['session_logger'].set_close_event(self.close_event)
cfg['Logging']['session_logger'].set_cfg(cfg)
cfg['Logging']['session_logger'].start()
cfg['Logging']['session_logger'].cancel_join_thread()
# init the system
call_start = 0
call_back_time = -1
call_back_uri = None
number_of_turns = -1
s_voice_activity = False
s_last_voice_activity_time = 0
u_voice_activity = False
u_last_voice_activity_time = 0
s_last_dm_activity_time = 0
u_last_input_timeout = 0
call_connected = False
hangup = False
ncalls = 0
outstanding_nlg_da = None
call_db = CallDB(self.cfg, self.cfg['VoipHub']['call_db'], self.cfg['VoipHub']['period'])
#call_db.log()
while 1:
# Check the close event.
if self.close_event.is_set():
print 'Received close event in: %s' % multiprocessing.current_process().name
return
time.sleep(self.cfg['Hub']['main_loop_sleep_time'])
if call_back_time != -1 and call_back_time < time.time():
vio_commands.send(Command('make_call(destination="%s")' % call_back_uri, 'HUB', 'VoipIO'))
call_back_time = -1
call_back_uri = None
# read all messages
if vio_commands.poll():
command = vio_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "incoming_call":
self.cfg['Logging']['system_logger'].session_start(command.parsed['remote_uri'])
self.cfg['Logging']['session_logger'].session_start(self.cfg['Logging']['system_logger'].get_session_dir_name())
self.cfg['Logging']['system_logger'].session_system_log('config = ' + unicode(self.cfg))
self.cfg['Logging']['session_logger'].config('config = ' + unicode(self.cfg))
self.cfg['Logging']['session_logger'].header(self.cfg['Logging']["system_name"], self.cfg['Logging']["version"])
self.cfg['Logging']['session_logger'].input_source("voip")
self.cfg['Analytics'].start_session(command.parsed['remote_uri'])
self.cfg['Analytics'].track_event('vhub', 'incoming_call', command.parsed['remote_uri'])
if command.parsed['__name__'] == "rejected_call":
call_back_time = time.time() + self.cfg['VoipHub']['wait_time_before_calling_back']
call_back_uri = command.parsed['remote_uri']
self.cfg['Analytics'].track_event('vhub', 'rejected_call', command.parsed['remote_uri'])
if command.parsed['__name__'] == "rejected_call_from_blacklisted_uri":
remote_uri = command.parsed['remote_uri']
num_all_calls, total_time, last_period_num_calls, last_period_total_time, last_period_num_short_calls = call_db.get_uri_stats(remote_uri)
m = []
m.append('')
m.append('=' * 120)
m.append('Rejected incoming call from blacklisted URI: %s' % remote_uri)
m.append('-' * 120)
m.append('Total calls: %d' % num_all_calls)
m.append('Total time (min): %0.1f' % (total_time/60.0, ))
m.append('Last period short calls: %d' % last_period_num_short_calls)
m.append('Last period total calls: %d' % last_period_num_calls)
m.append('Last period total time (min): %0.1f' % (last_period_total_time/60.0, ))
m.append('=' * 120)
m.append('')
self.cfg['Logging']['system_logger'].info('\n'.join(m))
self.cfg['Analytics'].track_event('vhub', 'rejected_call_from_blacklisted_uri', command.parsed['remote_uri'])
if command.parsed['__name__'] == "call_connecting":
self.cfg['Analytics'].track_event('vhub', 'call_connecting', command.parsed['remote_uri'])
if command.parsed['__name__'] == "call_confirmed":
remote_uri = command.parsed['remote_uri']
num_all_calls, total_time, last_period_num_calls, last_period_total_time, last_period_num_short_calls = call_db.get_uri_stats(remote_uri)
m = []
m.append('')
m.append('=' * 120)
m.append('Incoming call from : %s' % remote_uri)
m.append('-' * 120)
m.append('Total calls: %d' % num_all_calls)
m.append('Total time (min): %0.1f' % (total_time/60.0, ))
m.append('Last period short calls: %d' % last_period_num_short_calls)
m.append('Last period total calls: %d' % last_period_num_calls)
m.append('Last period total time (min): %0.1f' % (last_period_total_time/60.0, ))
m.append('-' * 120)
if last_period_num_calls > self.cfg['VoipHub']['last_period_max_num_calls'] or \
last_period_total_time > self.cfg['VoipHub']['last_period_max_total_time'] or \
last_period_num_short_calls > self.cfg['VoipHub']['last_period_max_num_short_calls'] :
# prepare for ending the call
call_connected = True
call_start = time.time()
number_of_turns = -1
s_voice_activity = True
s_last_voice_activity_time = time.time()
u_voice_activity = False
u_last_voice_activity_time = time.time()
u_last_input_timeout = time.time()
hangup = True
self.cfg['Logging']['session_logger'].turn("system")
tts_commands.send(Command('synthesize(text="%s",log="true")' % self.cfg['VoipHub']['limit_reached_message'], 'HUB', 'TTS'))
vio_commands.send(Command('black_list(remote_uri="%s",expire="%d")' % (remote_uri,
time.time() + self.cfg['VoipHub']['blacklist_for']), 'HUB', 'VoipIO'))
m.append('CALL REJECTED')
else:
# init the system
call_connected = True
call_start = time.time()
number_of_turns = 0
s_voice_activity = False
s_last_voice_activity_time = 0
u_voice_activity = False
u_last_voice_activity_time = time.time()
u_last_input_timeout = time.time()
hangup = False
dm_commands.send(Command('new_dialogue()', 'HUB', 'DM'))
m.append('CALL ACCEPTED')
m.append('=' * 120)
m.append('')
self.cfg['Logging']['system_logger'].info('\n'.join(m))
call_db.track_confirmed_call(remote_uri)
self.cfg['Analytics'].track_event('vhub', 'call_confirmed', command.parsed['remote_uri'])
if command.parsed['__name__'] == "call_disconnected":
# flush vio, when flushed, vad will be flushed
vio_commands.send(Command('flush()', 'HUB', 'VoipIO'))
self.cfg['Logging']['system_logger'].session_end()
self.cfg['Logging']['session_logger'].session_end()
remote_uri = command.parsed['remote_uri']
call_db.track_disconnected_call(remote_uri)
call_connected = False
number_of_turns = -1
ncalls += 1
self.cfg['Analytics'].track_event('vhub', 'call_disconnected', command.parsed['remote_uri'])
if command.parsed['__name__'] == "play_utterance_start":
s_voice_activity = True
s_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "play_utterance_end":
s_voice_activity = False
s_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "flushed":
# flush vad, when flushed, asr will be flushed
vad_commands.send(Command('flush()', 'HUB', 'VAD'))
if command.parsed['__name__'] == "flushed_out":
# process the outstanding DA if necessary
if outstanding_nlg_da:
nlg_commands.send(DMDA(outstanding_nlg_da, 'HUB', 'NLG'))
outstanding_nlg_da = None
if vad_commands.poll():
command = vad_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "speech_start":
u_voice_activity = True
# interrupt the talking system
# this will be replaced with pausing the system when the necessary extension of pjsip
# is implemented
if s_voice_activity and s_last_voice_activity_time + 0.02 < current_time:
# if the system is still talking then flush the output
self.cfg['Logging']['session_logger'].barge_in("system")
# when a user barge in into the output, all the output pipe line
# must be flushed
nlg_commands.send(Command('flush()', 'HUB', 'NLG'))
s_voice_activity = False
s_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "speech_end":
u_voice_activity = False
u_last_voice_activity_time = time.time()
if command.parsed['__name__'] == "flushed":
# flush asr, when flushed, slu will be flushed
asr_commands.send(Command('flush()', 'HUB', 'ASR'))
if asr_commands.poll():
command = asr_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush slu, when flushed, dm will be flushed
slu_commands.send(Command('flush()', 'HUB', 'SLU'))
if slu_commands.poll():
command = slu_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush dm, when flushed, nlg will be flushed
dm_commands.send(Command('flush()', 'HUB', 'DM'))
dm_commands.send(Command('end_dialogue()', 'HUB', 'DM'))
if dm_commands.poll():
command = dm_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "hangup":
# prepare for ending the call
hangup = True
self.cfg['Analytics'].track_event('vhub', 'system_hangup')
if command.parsed['__name__'] == "flushed":
# flush nlg, when flushed, tts will be flushed
nlg_commands.send(Command('flush()', 'HUB', 'NLG'))
elif isinstance(command, DMDA):
# record the time of the last system generated dialogue act
s_last_dm_activity_time = time.time()
number_of_turns += 1
if command.da != "silence()":
# if the DM generated non-silence dialogue act, then continue in processing it
if s_voice_activity and s_last_voice_activity_time + 0.02 < current_time:
# if the system is still talking then flush the output
self.cfg['Logging']['session_logger'].barge_in("system")
# when a user barge in into the output, all the output pipe line
# must be flushed
nlg_commands.send(Command('flush()', 'HUB', 'NLG'))
s_voice_activity = False
s_last_voice_activity_time = time.time()
# the DA will be send when all the following components are flushed
outstanding_nlg_da = command.da
else:
nlg_commands.send(DMDA(command.da, "HUB", "NLG"))
if nlg_commands.poll():
command = nlg_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush tts, when flushed, vio will be flushed
tts_commands.send(Command('flush()', 'HUB', 'TTS'))
if tts_commands.poll():
command = tts_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "flushed":
# flush vio_out
vio_commands.send(Command('flush_out()', 'HUB', 'VIO'))
current_time = time.time()
s_diff = current_time - s_last_voice_activity_time
u_diff = current_time - u_last_voice_activity_time
if call_connected and \
not s_voice_activity and not u_voice_activity and \
s_diff > self.cfg['DM']['input_timeout'] and \
u_diff > self.cfg['DM']['input_timeout'] and \
current_time - u_last_input_timeout > self.cfg['DM']['input_timeout']:
u_last_input_timeout = time.time()
dm_commands.send(Command('timeout(silence_time="%0.3f")' % min(s_diff, u_diff), 'HUB', 'DM'))
if hangup and s_last_dm_activity_time + 2.0 < current_time and \
s_voice_activity == False and s_last_voice_activity_time + 2.0 < current_time:
# we are ready to hangup only when all voice activity is finished
hangup = False
vio_commands.send(Command('hangup()', 'HUB', 'VoipIO'))
if number_of_turns != -1 and current_time - call_start > self.cfg['VoipHub']['hard_time_limit'] or \
number_of_turns > self.cfg['VoipHub']['hard_turn_limit']:
# hard hangup due to the hard limits
call_start = 0
number_of_turns = -1
vio_commands.send(Command('hangup()', 'HUB', 'VoipIO'))
if self.ncalls != 0 and not call_connected and s_last_dm_activity_time + 5.0 < current_time and ncalls >= self.ncalls:
break
# stop processes
vio_commands.send(Command('stop()', 'HUB', 'VoipIO'))
vad_commands.send(Command('stop()', 'HUB', 'VAD'))
asr_commands.send(Command('stop()', 'HUB', 'ASR'))
slu_commands.send(Command('stop()', 'HUB', 'SLU'))
dm_commands.send(Command('stop()', 'HUB', 'DM'))
nlg_commands.send(Command('stop()', 'HUB', 'NLG'))
tts_commands.send(Command('stop()', 'HUB', 'TTS'))
# clean connections
for c in command_connections:
while c.poll():
c.recv()
for c in non_command_connections:
while c.poll():
c.recv()
# wait for processes to stop
# do not join, because in case of exception the join will not be successful
# vio.join()
# vad.join()
# asr.join()
# slu.join()
# dm.join()
# nlg.join()
# tts.join()
#cfg['Logging']['session_logger'].join()
except KeyboardInterrupt:
print 'KeyboardInterrupt exception in: %s' % multiprocessing.current_process().name
self.close_event.set()
return
except:
self.cfg['Logging']['system_logger'].exception('Uncaught exception in VHUB process.')
self.close_event.set()
raise
print 'Exiting: %s. Setting close event' % multiprocessing.current_process().name
self.close_event.set()
def run(self):
# AIO pipes
# used to send commands to VoipIO
aio_commands, aio_child_commands = multiprocessing.Pipe()
# I read from this connection recorded audio
aio_record, aio_child_record = multiprocessing.Pipe()
# I write in audio to be played
aio_play, aio_child_play = multiprocessing.Pipe()
# VAD pipes
# used to send commands to VAD
vad_commands, vad_child_commands = multiprocessing.Pipe()
# used to read output audio from VAD
vad_audio_out, vad_child_audio_out = multiprocessing.Pipe()
# ASR pipes
# used to send commands to ASR
asr_commands, asr_child_commands = multiprocessing.Pipe()
# used to read ASR hypotheses
asr_hypotheses_out, asr_child_hypotheses = multiprocessing.Pipe()
# SLU pipes
# used to send commands to SLU
slu_commands, slu_child_commands = multiprocessing.Pipe()
# used to read SLU hypotheses
slu_hypotheses_out, slu_child_hypotheses = multiprocessing.Pipe()
# DM pipes
# used to send commands to DM
dm_commands, dm_child_commands = multiprocessing.Pipe()
# used to read DM actions
dm_actions_out, dm_child_actions = multiprocessing.Pipe()
# NLG pipes
# used to send commands to NLG
nlg_commands, nlg_child_commands = multiprocessing.Pipe()
# used to read NLG output
nlg_text_out, nlg_child_text = multiprocessing.Pipe()
# TTS pipes
# used to send commands to TTS
tts_commands, tts_child_commands = multiprocessing.Pipe()
command_connections = [aio_commands, vad_commands, asr_commands,
slu_commands, dm_commands, nlg_commands,
tts_commands]
non_command_connections = [aio_record, aio_child_record,
aio_play, aio_child_play,
vad_audio_out, vad_child_audio_out,
asr_hypotheses_out, asr_child_hypotheses,
slu_hypotheses_out, slu_child_hypotheses,
dm_actions_out, dm_child_actions,
nlg_text_out, nlg_child_text]
# create the hub components
close_event = multiprocessing.Event()
aio = WebIO(self.cfg, aio_child_commands, aio_child_record, aio_child_play, close_event)
vad = VAD(self.cfg, vad_child_commands, aio_record, vad_child_audio_out, close_event)
asr = ASR(self.cfg, asr_child_commands, vad_audio_out, asr_child_hypotheses, close_event)
slu = SLU(
self.cfg, slu_child_commands, asr_hypotheses_out, slu_child_hypotheses, close_event)
dm = DM(self.cfg, dm_child_commands, slu_hypotheses_out, dm_child_actions, close_event)
nlg = NLG(self.cfg, nlg_child_commands, dm_actions_out, nlg_child_text, close_event)
tts = TTS(self.cfg, tts_child_commands, nlg_text_out, aio_play, close_event)
# start the hub components
aio.start()
vad.start()
asr.start()
slu.start()
dm.start()
nlg.start()
tts.start()
# init the system
call_back_time = -1
call_back_uri = None
call_start = time.time()
self.cfg['Logging']['system_logger'].session_start("@LOCAL_CALL")
self.cfg['Logging']['system_logger'].session_system_log('config = ' + str(self.cfg))
self.cfg['Logging']['session_logger'].session_start(
self.cfg['Logging']['system_logger'].get_session_dir_name())
self.cfg['Logging']['session_logger'].config('config = ' + str(self.cfg))
self.cfg['Logging']['session_logger'].header(
self.cfg['Logging']["system_name"], self.cfg['Logging']["version"])
self.cfg['Logging']['session_logger'].input_source("aio")
while 1:
time.sleep(self.cfg['Hub']['main_loop_sleep_time'])
if call_back_time != -1 and call_back_time < time.time():
aio_commands.send(Command('make_call(destination="%s")' %
call_back_uri, 'HUB', 'AIO'))
call_back_time = -1
call_back_uri = None
if vad_commands.poll():
command = vad_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "speech_start":
pass
if command.parsed['__name__'] == "speech_end":
pass
if asr_commands.poll():
command = asr_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if slu_commands.poll():
command = slu_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if dm_commands.poll():
command = dm_commands.recv()
self.cfg['Logging']['system_logger'].info(command)
if isinstance(command, Command):
if command.parsed['__name__'] == "hangup":
# prepare for ending the call
pass
if command.parsed['__name__'] == "dm_da_generated":
# record the time of the last system generated dialogue act
pass
if nlg_commands.poll():
command = nlg_commands.recv()
# TODO HACK
# self.cfg['Logging']['system_logger'].info(command)
if tts_commands.poll():
command = tts_commands.recv()
# TODO HACK
# self.cfg['Logging']['system_logger'].info(command)
current_time = time.time()
# stop processes
aio_commands.send(Command('stop()', 'HUB', 'AIO'))
vad_commands.send(Command('stop()', 'HUB', 'VAD'))
asr_commands.send(Command('stop()', 'HUB', 'ASR'))
slu_commands.send(Command('stop()', 'HUB', 'SLU'))
dm_commands.send(Command('stop()', 'HUB', 'DM'))
nlg_commands.send(Command('stop()', 'HUB', 'NLG'))
tts_commands.send(Command('stop()', 'HUB', 'TTS'))
# clean connections
for c in command_connections:
while c.poll():
c.recv()
for c in non_command_connections:
while c.poll():
c.recv()
# wait for processes to stop
aio.join()
vad.join()
tts.join()