Semi working google voice

hugvey/central_command.py

@@ -6,16 +6,18 @@ This server controls all hugveys and the processing of their narratives. It expo
 
 import asyncio
 import logging
+from pandas.conftest import ip
+import threading
 import yaml
 import zmq
+from zmq.asyncio import Context
 
 from hugvey import panopticon
-from hugvey.voice.streamer import AudioStreamer
-from hugvey.voice.player import Player
 from hugvey.communication import getTopic, zmqSend, zmqReceive
-from pandas.conftest import ip
-from zmq.asyncio import Context
-import threading
+from hugvey.voice.google import GoogleVoiceClient
+from hugvey.voice.player import Player
+from hugvey.voice.streamer import AudioStreamer
+import uuid
 
 
 logger = logging.getLogger("command")
@@ -29,6 +31,7 @@ class CentralCommand(object):
         self.isRunning = threading.Event()
         self.hugveys = {}
         self.ctx = Context.instance()
+        self.hugveyLock = asyncio.Lock()
         
 
     def loadConfig(self, filename):
@@ -69,7 +72,7 @@ class CentralCommand(object):
         
         s.close()
     
-    def instantiateHugvey(self, hugvey_id, msg):
+    async def instantiateHugvey(self, hugvey_id, msg):
         '''
         Start a HugveyState, according to a show_yourself reply
         
@@ -78,13 +81,20 @@ class CentralCommand(object):
         'host': socket.gethostname(),
         'ip': self.getIp(),
         '''
-#         def startHugvey():
+        async with self.hugveyLock: # lock to prevent duplicates on creation
+            if not hugvey_id in self.hugveys:
+                logger.info(f'Instantiate hugvey #{hugvey_id}')
                 h = HugveyState(hugvey_id, self)
                 h.config(msg['host'],msg['ip'])
-        
-        thread = threading.Thread(target=h.start)
+                self.hugveys[hugvey_id] = h
+                thread = threading.Thread(target=h.start, name=f"hugvey#{hugvey_id}")
                 thread.start()
-#         self.tasks['hv{}'.format(hugvey_id)] = self.loop.create_task(h.start())
+            else:
+                logger.info(f'Reconfigure hugvey #{hugvey_id}')
+                # (re)configure exisitng hugveys
+                h.config(msg['host'],msg['ip'])
+        
+        
             
     async def eventListener(self):
         s = self.ctx.socket(zmq.SUB)
@@ -103,7 +113,7 @@ class CentralCommand(object):
             elif hugvey_id not in self.hugveys:
                 if msg['event'] == 'connection':
                     # Create a hugvey
-                    self.instantiateHugvey(hugvey_id, msg)
+                    await self.instantiateHugvey(hugvey_id, msg)
                 else:
                     logger.warning("Message from uninstantiated Hugvey {}".format(hugvey_id))
                     logger.debug("Message contains: {}".format(msg))
@@ -135,20 +145,27 @@ class HugveyState(object):
         self.command = command
         self.logger = logging.getLogger(f"hugvey{self.id}")
         self.loop = asyncio.new_event_loop()
+        self.isConfigured = False
     
     def config(self, hostname, ip):
         self.ip = ip
         self.hostname = hostname
         self.logger.info(f"Hugvey {self.id} at {self.ip}, host: {self.hostname}")
         
+        if self.isConfigured == True:
+            # a reconfiguration/reconnection
+            pass
+        
+        self.isConfigured = True
+    
     def start(self):
         # stop on isRunning.is_set() or wait()
-#         self.loop.create_task(self.startAudio())
-        tasks = asyncio.gather(self.startAudio(), loop=self.loop)
+#         self.loop.create_task(self.startAudioProcessing())
+        tasks = asyncio.gather(self.startAudioProcessing(), loop=self.loop)
         self.loop.run_until_complete(tasks)
 #         asyncio.run_coroutine_threadsafe(self._start(), self.loop)
     
-    async def startAudio(self):
+    async def startAudioProcessing(self):
         '''
         Start the audio streamer service
         '''
@@ -163,4 +180,13 @@ class HugveyState(object):
             player = Player(self.command.config['voice']['src_rate'], self.command.config['voice']['out_rate'])
             streamer.addConsumer(player)
         
+        self.logger.info("Start Speech")
+        google = GoogleVoiceClient(
+            hugvey_id=self.id,
+            src_rate=self.command.config['voice']['src_rate'],
+            credential_file=self.command.config['voice']['google_credentials'],
+            language_code='en-US'
+            )
+        streamer.addConsumer(google)
+        
         await streamer.run()

hugvey/voice/google.py

@@ -0,0 +1,121 @@
+import json
+import logging
+import os
+import pyaudio
+import re
+import socket
+import os
+from threading import Thread
+
+from google.cloud.speech import enums
+from google.cloud.speech import types
+from google.auth.credentials import Credentials
+
+from google.cloud import speech
+import asyncio
+import threading
+import queue
+import uuid
+
+
+logger = logging.getLogger("voice")
+
+
+class GoogleVoiceClient(object):
+    def __init__(self, hugvey_id, src_rate, credential_file, language_code = "en_GB"):
+        self.src_rate  = src_rate
+        self.language_code = language_code
+        os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = credential_file
+        
+        # Create a thread-safe buffer of audio data
+        self.buffer = queue.Queue()
+        self.isRunning = False
+        self.target_rate = 16000
+        self.cv_laststate = None
+        
+        self.task = threading.Thread(target=self.run, name=f"voice-hv{hugvey_id}" + str(uuid.uuid1()))
+        self.task.setDaemon(True)
+        self.task.start()
+        
+    def generator(self):
+        while self.isRunning:
+            yield self.buffer.get()
+    
+    def run(self):
+        self.isRunning = True
+        
+        while self.isRunning:
+            try:
+                self.speech_client = speech.SpeechClient()
+                config = types.RecognitionConfig(
+                    encoding=enums.RecognitionConfig.AudioEncoding.LINEAR16,
+                    sample_rate_hertz=self.src_rate,
+                    language_code=self.language_code)
+                self.streaming_config = types.StreamingRecognitionConfig(
+                    config=config,
+                    interim_results=True)
+                
+                audio_generator = self.generator()
+                requests = (types.StreamingRecognizeRequest(audio_content=content)
+                                    for content in audio_generator)
+                responses = self.speech_client.streaming_recognize(
+                            self.streaming_config, requests)
+                
+                logger.info("Starting voice loop")
+                for response in responses:
+                    if not response.results:
+                        continue
+                    """Iterates through server responses and prints them.
+        
+                    The responses passed is a generator that will block until a response
+                    is provided by the server.
+                
+                    Each response may contain multiple results, and each result may contain
+                    multiple alternatives; for details, see https://goo.gl/tjCPAU.  Here we
+                    print only the transcription for the top alternative of the top result.
+                
+                    In this case, responses are provided for interim results as well. If the
+                    response is an interim one, print a line feed at the end of it, to allow
+                    the next result to overwrite it, until the response is a final one. For the
+                    final one, print a newline to preserve the finalized transcription.
+                    """
+            
+                    # The `results` list is consecutive. For streaming, we only care about
+                    # the first result being considered, since once it's `is_final`, it
+                    # moves on to considering the next utterance.
+                    result = response.results[0]
+                    if not result.alternatives:
+                        continue
+            
+                    # Display the transcription of the top alternative.
+                    transcript = result.alternatives[0].transcript
+            
+        #             logger.debug("Text: ".format(transcript))
+            
+                    if not result.is_final:
+                        logger.debug(f"Text: {transcript}")
+                    else:
+                        logger.info(f"Text: {transcript}")
+                    
+                    if not self.isRunning:
+                        logger.warn("Stopping voice loop")
+                        break
+            except Exception as e:
+                logger.critical(f"Crashed Google Voice: {e}")
+        
+            
+    def receive(self, chunk):
+        if not self.task.isAlive():
+            raise Exception("Voice thread died")
+        
+        if self.src_rate == self.target_rate:
+            data = chunk
+        else:
+            data, self.cv_laststate = audioop.ratecv(chunk, 2, 1, self.src_rate, self.target_rate, self.cv_laststate) 
+        self.buffer.put_nowait(data)
+    
+    def shutdown(self):
+        self.isRunning = False
+        
+    
+           

server_config.yml

@@ -6,4 +6,5 @@ voice:
     out_rate: 44100
     port: 4444
     chunk: 2972
+    google_credentials: "/home/ruben/Documents/Projecten/2018/Hugvey/test_googlespeech/My First Project-0c7833e0d5fa.json"
 hugveys: 3