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lvt_client.py
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lvt_client.py
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#!/usr/bin/env python3
import sys
import time
import io
import json
import asyncio
import pyaudio
import wave
import ssl
import aiohttp
from lvt.const import *
from lvt.protocol import *
from lvt.logger import *
from lvt.client.microphone import Microphone
import lvt.client.config as config
import lvt.client.updater as updater
audio : pyaudio.PyAudio
microphone : Microphone = None
defaultPlayerVolume : int = 0
isQuiet = False
isTerminated = False
exitCode = 0
isConnected = False
terminalStatus = '{"Terminal":""}'
serverStatus = '{}'
#region showHelp(), showDevices() ######################################################
def showHelp():
"""Display usage instructions"""
print( "Использование: lvt_client.py [параметры]" )
print( "Допустимые параметры:" )
print( " -h | --help Вывод этой подсказки" )
print( " -d | --devices Показать список аудио устройств" )
print( " -q | --quiet Не отображать уровень звука в консоли" )
print( " -c=<config> | --config=<config> Использоавть указанный файл конфигурации" )
def showDevices():
global audio
"""List audio deivces to use in config"""
print( "Список поддерживаемых аудио устройств. В файле конфигурации может быть указан как индекс так и название устройств" )
print( f' Индекс Каналы Название устройтсва' )
for i in range( audio.get_device_count() ):
device = audio.get_device_info_by_index( i )
print( f' {i:>2} I:{device.get("maxInputChannels")} / O:{device.get("maxOutputChannels")} "{device.get("name")}"' )
#print(device)
audio.terminate()
#endregion
#region printStatus() ##################################################################
async def printStatusThread():
global microphone
global isTerminated
while not isTerminated:
delay = 1
if microphone is not None :
width = 38
scale = 15000
rms = microphone.rms
if rms > scale : rms = scale
graph = ''
if not microphone.muted:
for i in range( 0,int( rms * width / scale ) + 1 ): graph += '='
graph = f'{graph:40}'
pL = int( microphone.noiseLevel * width / scale )
pL = 1 if pL < 1 else width if pL > width else pL
pR = int( microphone.triggerLevel * width / scale )
pR = 1 if pR < 1 else width if pR > width else pR
if pL >= pR : pR = pL + 1
if not microphone.muted:
graph = graph[:pL] + '|' + graph[pL:pR] + '|' + graph[pR + 1:]
else:
graph += ' '
mouth = 'o' if microphone.speaking else '_'
face = f'*{mouth}*' if microphone.active else f'-{mouth}-'
face = f'x({face})x' if microphone.muted else f'@({face})@'
playing = 'P' if microphone.playing else 'p'
if config.volumeControlPlayer is not None and microphone is not None:
playing = playing + f' {microphone.playerVolume}%'
if microphone.dbgInfo:
dbgInfo = f'[{microphone.dbgInfo}]'
delay = 0.5
else:
dbgInfo = ''
sys.__stdout__.write( f' {dbgInfo} {face} [{playing}] CH:{microphone.channel} RMS:{microphone.rms:>5} P2P:{microphone.maxpp:>5} VAD:{microphone.vadLevel:>3} [{graph}] \r' )
await asyncio.sleep( delay )
#endregion
#region ALSA: <get|set>[Player]Volume() ################################################
def getVolume():
global alsaaudio
global microphone
if config.volumeControlVoice is not None:
volume = alsaaudio.Mixer(cardindex=config.volumeCardIndex, control=config.volumeControlVoice ).getvolume()[0]
if microphone is not None: microphone.voiceVolume = volume
return volume
else:
return None
def getPlayerVolume():
global alsaaudio
if config.volumeControlPlayer is not None:
volume = alsaaudio.Mixer(cardindex=config.volumeCardIndex, control=config.volumeControlPlayer ).getvolume()[0]
if microphone is not None: microphone.playerVolume = volume
return volume
else:
return 0
def setVolume( volume: int ):
volume = int(volume)
volume = 100 if volume>100 else (0 if volume<0 else volume)
try:
alsaaudio.Mixer(cardindex=config.volumeCardIndex, control=config.volumeControlVoice ).setvolume(volume)
if microphone is not None: microphone.voiceVolume = volume
except Exception as e:
pass
def setPlayerVolume( volume ):
volume = int(volume)
volume = 100 if volume>100 else (0 if volume<0 else volume)
try:
alsaaudio.Mixer(cardindex=config.volumeCardIndex, control=config.volumeControlPlayer ).setvolume(volume)
if microphone is not None: microphone.playerVolume = volume
except Exception as e:
pass
#endregion
#region mutePlayerAsync() / unmutePlayerAsync() ##################################################
async def mutePlayerAsync():
global defaultPlayerVolume
v = getPlayerVolume()
if v is not None and v>0:
defaultPlayerVolume = v
while v>0:
v -= 5
if v<0: v=0
setPlayerVolume(v)
await asyncio.sleep( 0.01 )
await asyncio.sleep( 0.5 )
async def unmutePlayerAsync():
global defaultPlayerVolume
v = getPlayerVolume()
if v is not None and defaultPlayerVolume > v:
await asyncio.sleep( 1 )
while v < defaultPlayerVolume:
v += 5
if v>defaultPlayerVolume: v=defaultPlayerVolume
setPlayerVolume(v)
await asyncio.sleep( 0.01 )
#endregion
#region playAsync() ####################################################################
async def playAsync( data ):
global audio
global microphone
try:
#fn = datetime.datetime.today().strftime(f'{config.terminalId}_%Y%m%d_%H%M%S_play.wav')
#f = open(os.path.join( ROOT_DIR, 'logs',fn),'wb')
#f.write(data)
#f.close()
with wave.open( io.BytesIO( data ), 'rb' ) as wav:
#print(f'len={len(data)}')
sampwidth = wav.getsampwidth()
format = pyaudio.get_format_from_width( sampwidth )
nchannels = wav.getnchannels()
framerate = wav.getframerate()
nframes = wav.getnframes()
#print(f'file properties: sampwidth {sampwidth} nchannels {nchannels} framerate {framerate} nframes {nframes} frames ({len(data)} bytes)')
# Workaoround broken .wav header:
t = len( data ) / sampwidth / nchannels
if ( t > 0 ) and ( t < nframes ) : nframes = t
frames = wav.readframes( nframes )
#print(f'{len(frames)} bytes of {nframes} frames read')
# Control & fix broken .wav header
t = int( len( frames ) / sampwidth / nchannels )
if ( t > 0 ) and ( t < nframes ) : nframes = t
except Exception as e:
logError( f'Ошибка при загрузке аудиофрагмента' )
nframes = 0
return
if nframes<=0 or len(frames)<=0:
logError( f'Аудиофрагмент пустой' )
return
try:
#print(f'open {nframes} frames ({len(frames)} bytes), nchannels={nchannels}, framerate={framerate} ')
audioStream = audio.open(
format=format,
channels=nchannels,
rate=framerate,
output=True,
output_device_index=int(config.audioOutputDevice),
frames_per_buffer = nframes - 4
)
startTime = time.time()
#print('write frames')
audioStream.write( frames )
#print('setting volume')
#await asyncio.sleep(0.1)
#setVolume(volume)
# Calculate time before audio played
timeout = (nframes / framerate + 0) - (time.time() - startTime)
# and wait if required...
if timeout>0 :
await asyncio.sleep( timeout )
except Exception as e:
logError( f'Ошибка при воспроизведении аудио: {e}' )
finally:
try: audioStream.stop_stream()
except: pass
try: audioStream.close()
except:pass
pass
#endregion
#region microphoneThread() #############################################################
async def microphoneThread( connection ):
global isTerminated
global microphone
while not isTerminated and isConnected:
log( "Микрофон: инициализация" )
with Microphone() as mic:
microphone = mic
try:
while not isTerminated and microphone.alive:
delay = 0.5
if microphone.active :
data = microphone.read()
if data is not None :
await connection.send_bytes( data )
delay = 0.1
await asyncio.sleep( delay )
if not microphone.alive:
logError( "Микрофон: потеря данных!")
except KeyboardInterrupt:
isTerminated = True
log( "Микрофон: Получен сигнал на завершение" )
except Exception as e:
print()
logError(f"Микрофон: {type(e).__name__}: {e}")
microphone = None
log( "Микрофон: Завершение" )
#endregion
#region messageThread() ################################################################
async def messageThread( connection ):
global isTerminated
global isConnected
global terminalStatus
global microphone
log("Основной цикл: Запуск")
speakerStatus = "? ?"
tmVolumeTracked = time.time()
while not isTerminated and isConnected:
try:
if microphone is not None:
s = f'{1 if microphone.playing else 0} {1 if microphone.speaking else 0}'
if s != speakerStatus:
await connection.send_str( MESSAGE( MSG_SPEAKER_STATUS, s ) )
speakerStatus = s
if time.time()-tmVolumeTracked > 2:
getPlayerVolume()
else:
speakerStatus = "? ?"
msg = await connection.receive()
m = None
if msg.type == aiohttp.WSMsgType.BINARY:
#print("binary received")
await playAsync(msg.data)
continue
elif msg.type == aiohttp.WSMsgType.TEXT:
m,p = parseMessage( msg.data )
#print(f"{m} received")
#region Handling message m
if m == MSG_STATUS:
if p is not None:
terminalStatus = json.loads(p)
setVolume(int(terminalStatus['Terminals'][config.terminalId]['Volume']))
elif m == MSG_LVT_STATUS:
if p is not None : serverStatus = json.loads(p)
elif m == MSG_WAKEUP:
if microphone is not None:
microphone.active = True
elif m == MSG_IDLE:
if microphone is not None:
microphone.active = False
elif m == MSG_DISCONNECT:
isConnected = False
elif m == MSG_TEXT:
if p is not None:
print()
print( p )
elif m == MSG_VOLUME:
setVolume(p)
elif m == MSG_MUTE_PLAYER:
await mutePlayerAsync()
elif m == MSG_UNMUTE_PLAYER:
await unmutePlayerAsync()
elif m == MSG_UPDATE:
if p is not None:
package = json.loads( p )
if updater.updateClient( package ):
restart()
elif m == MSG_REBOOT:
restart()
else:
logError( f'Unknown message received: "{m}"' )
#endregion
elif msg.type == aiohttp.WSMsgType.CLOSED:
break
except asyncio.TimeoutError:
continue
except KeyboardInterrupt:
break
except Exception as e:
logError( f'Основной цикл, {m}: {type(e).__name__}: {e}' )
log("Основной цикл: остановка")
#endregion
#region client() #######################################################################
async def client( ):
global microphone
global isQuiet
global isTerminated
global isConnected
log( "Запуск основного сервиса" )
if config.ssl :
sslContext = ssl.SSLContext( ssl.PROTOCOL_TLS_CLIENT )
protocol = "https"
if config.sslAllowAny : # Disable host name and SSL certificate validation
sslContext.check_hostname = False
sslContext.verify_mode = ssl.CERT_NONE
else:
sslContext = False
protocol = "http"
async with aiohttp.ClientSession() as session:
printStatusTask = asyncio.ensure_future( printStatusThread() ) if not isQuiet else None
while not isTerminated:
isConnected = False
try:
async with session.ws_connect(
f"{protocol}://{config.serverAddress}:{config.serverPort}",
receive_timeout = 0.5,
heartbeat=10,
ssl= sslContext,
) as connection:
isConnected = True
await connection.send_str( MESSAGE( MSG_TERMINAL, config.terminalId, config.password, VERSION ) )
microphoneTask = asyncio.ensure_future( microphoneThread(connection))
messageTask = asyncio.ensure_future( messageThread(connection))
tasks = []
tasks.append( microphoneTask )
tasks.append( messageTask )
if printStatusTask is not None: tasks.append( printStatusTask )
done, pending = await asyncio.wait( tasks, return_when=asyncio.FIRST_COMPLETED )
isConnected = False
logError("Disconnected")
if microphoneTask in pending:
microphoneTask.cancel()
if messageTask in pending:
messageTask.cancel()
except Exception as e:
isConnected = False
print()
logError( f'Client error {type(e).__name__}: {e}' )
await asyncio.sleep( 10 )
except:
isConnected = False
onCtrlC()
finally:
isConnected = False
if printStatusTask is not None:
printStatusTask.cancel()
printStatusTask = None
log( "Finishing Client thread" )
#endregion
#region onCtrlC(), restart #############################################################
def onCtrlC():
""" Gracefuly terminate program """
global isTerminated
try:
if not isTerminated:
print()
print( "Завершение программы..." )
isTerminated = True
except:
pass
try:
loop.stop()
except:
pass
def restart():
""" Перезапуск клиента в надежде что он запущен из скрипта в цикле """
global isTerminated
global exitCode
log( 'Перезапуск...' )
isTerminated = True
exitCode = 42 # перезапуск
sys.exit(42)
#endregion
#region Main program ###################################################################
if __name__ == '__main__':
print()
print( f'Lite Voice Terminal Client v{VERSION}' )
print()
print("========== Инициализация аудиоподсистемы ==========")
audio = pyaudio.PyAudio()
print("============= Инициализация завершена =============")
print("")
defaultPlayerVolume = getPlayerVolume()
for arg in sys.argv[1:]:
a = arg.strip().lower()
if ( a == '-h' ) or ( a == '--help' ) or ( a == '/?' ) :
showHelp()
exit( 0 )
elif ( a == '-d' ) or ( a == '--devices' ) :
showDevices()
exit( 0 )
elif ( a == '-q' ) or ( a == '--quiet' ) :
isQuiet = True
elif ( a == '-i' ) or ( a == '--init' ) or ( a == '--initialize' ) :
# Параметр для инициализации virtual environment в скрипте запуска. Просто игнорируем.
pass
elif ( a.startswith('-с=' ) or a.startswith('--config=') ):
#config parameter is already processed
pass
else:
logError( f'Неизвестный параметр: "{arg}"' )
config.init( audio )
Microphone.init( audio )
print( f'ID терминала: "{config.terminalId}"' )
print( f'Устройство для захвата звука: #{config.audioInputDevice} "{config.audioInputName}"' )
print( f'Устройство для вывода звука: #{config.audioOutputDevice} "{config.audioOutputName}"' )
print( f'Канал микрофона: {config.microphones}' )
print( f'Канал Voice loopback: {config.loopbackVoice}' )
print( f'Канал Player loopback: {config.loopbackPlayer}' )
print( f'Эхоподавление: {"доступно" if Microphone.aecAvailable else "недоступно"}' )
if config.volumeControlVoice is not None or config.volumeControlPlayer is not None :
import alsaaudio
try:
volumeControls = alsaaudio.mixers(config.volumeCardIndex)
except alsaaudio.ALSAAudioError:
logError(f"Неправильный индекс устройства alsamixer ({config.volumeCardIndex})" )
config.volumeCardIndex = 0
config.volumeControlVoice = None
config.volumeControlPlayer = None
volumeControls = []
showControls = False
if config.volumeControlVoice is not None and config.volumeControlVoice not in volumeControls:
logError( f"Неправильное название громкости LVT: {config.volumeControlVoice}" )
config.volumeControlVoice = None
showControls = True
if config.volumeControlPlayer is not None and config.volumeControlPlayer not in volumeControls:
logError( f"Неправильное название громкости аудиоплеера: {config.volumeControlPlayer}" )
config.volumeControlPlayer = None
showControls = True
if showControls:
print( "Допустимые названия каналов управления громкостью:" )
print( f"{', '.join(volumeControls)}" )
if config.volumeControlVoice is not None or config.volumeControlPlayer is not None :
#print( f'Устройство для управления громкостью: "{alsaaudio.cards()[config.volumeCardIndex]}"' )
if config.volumeControlVoice is not None :
print( f'Громкость LVT: {getVolume()}% ({config.volumeControlVoice})' )
if config.volumeControlPlayer is not None :
print( f'Громкость плеера: {getPlayerVolume()}% ({config.volumeControlPlayer})' )
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
try:
loop.run_until_complete( client() )
except KeyboardInterrupt as e:
onCtrlC()
except Exception as e:
logError( f'Unhandled exception {type(e).__name__}: {e}' )
except:
onCtrlC()
isTerminated = True
time.sleep(1)
if exitCode == 42:
log( 'Перезапуск' )
sys.exit( exitCode )
else:
print( 'Завершение работы' )
#endregion