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websocket online vad endpoint

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This commit is contained in:
游雁 2023-05-17 16:38:11 +08:00
parent 3346a7cdc7
commit ed2d1fed05
1 changed files with 49 additions and 16 deletions
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65
funasr/runtime/python/websocket/ws_server_online.py
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@ -32,15 +32,29 @@ inference_pipeline_asr_online = pipeline(
ncpu=args.ncpu,
model_revision='v1.0.4')
# vad
inference_pipeline_vad = pipeline(
task=Tasks.voice_activity_detection,
model=args.vad_model,
model_revision=None,
output_dir=None,
batch_size=1,
mode='online',
ngpu=args.ngpu,
ncpu=1,
)
print("model loaded")
async def ws_serve(websocket, path):
frames = []
frames_asr_online = []
global websocket_users
websocket_users.add(websocket)
websocket.param_dict_asr_online = {"cache": dict()}
websocket.param_dict_vad = {'in_cache': dict()}
websocket.wav_name = "microphone"
print("new user connected",flush=True)
try:
@ -53,9 +67,10 @@ async def ws_serve(websocket, path):
if "is_speaking" in messagejson:
websocket.is_speaking = messagejson["is_speaking"]
websocket.param_dict_asr_online["is_final"] = not websocket.is_speaking
websocket.param_dict_vad["is_final"] = not websocket.is_speaking
# need to fire engine manually if no data received any more
if not websocket.is_speaking:
await async_asr_online(websocket,b"")
await async_asr_online(websocket, b"")
if "chunk_interval" in messagejson:
websocket.chunk_interval=messagejson["chunk_interval"]
if "wav_name" in messagejson:
@ -64,14 +79,18 @@ async def ws_serve(websocket, path):
websocket.param_dict_asr_online["chunk_size"] = messagejson["chunk_size"]
# if has bytes in buffer or message is bytes
if len(frames_asr_online) > 0 or not isinstance(message, str):
if not isinstance(message,str):
if not isinstance(message, str):
frames_asr_online.append(message)
# frames.append(message)
# duration_ms = len(message) // 32
# websocket.vad_pre_idx += duration_ms
speech_start_i, speech_end_i = await async_vad(websocket, message)
websocket.is_speaking = not speech_end_i
if len(frames_asr_online) % websocket.chunk_interval == 0 or not websocket.is_speaking:
websocket.param_dict_asr_online["is_final"] = not websocket.is_speaking
audio_in = b"".join(frames_asr_online)
# if not websocket.is_speaking:
#padding 0.5s at end gurantee that asr engine can fire out last word
# audio_in=audio_in+b''.join(np.zeros(int(16000*0.5),dtype=np.int16))
await async_asr_online(websocket,audio_in)
await async_asr_online(websocket, audio_in)
frames_asr_online = []
@ -85,7 +104,7 @@ async def ws_serve(websocket, path):
async def async_asr_online(websocket,audio_in):
if len(audio_in) >=0:
if len(audio_in) >= 0:
audio_in = load_bytes(audio_in)
rec_result = inference_pipeline_asr_online(audio_in=audio_in,
param_dict=websocket.param_dict_asr_online)
@ -97,16 +116,30 @@ async def async_asr_online(websocket,audio_in):
await websocket.send(message)
async def async_vad(websocket, audio_in):
segments_result = inference_pipeline_vad(audio_in=audio_in, param_dict=websocket.param_dict_vad)
speech_start = False
speech_end = False
if len(segments_result) == 0 or len(segments_result["text"]) > 1:
return speech_start, speech_end
if segments_result["text"][0][0] != -1:
speech_start = segments_result["text"][0][0]
if segments_result["text"][0][1] != -1:
speech_end = True
return speech_start, speech_end
if len(args.certfile)>0:
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
# Generate with Lets Encrypt, copied to this location, chown to current user and 400 permissions
ssl_cert = args.certfile
ssl_key = args.keyfile
ssl_context.load_cert_chain(ssl_cert, keyfile=ssl_key)
start_server = websockets.serve(ws_serve, args.host, args.port, subprotocols=["binary"], ping_interval=None,ssl=ssl_context)
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
# Generate with Lets Encrypt, copied to this location, chown to current user and 400 permissions
ssl_cert = args.certfile
ssl_key = args.keyfile
ssl_context.load_cert_chain(ssl_cert, keyfile=ssl_key)
start_server = websockets.serve(ws_serve, args.host, args.port, subprotocols=["binary"], ping_interval=None,ssl=ssl_context)
else:
start_server = websockets.serve(ws_serve, args.host, args.port, subprotocols=["binary"], ping_interval=None)
start_server = websockets.serve(ws_serve, args.host, args.port, subprotocols=["binary"], ping_interval=None)
asyncio.get_event_loop().run_until_complete(start_server)
asyncio.get_event_loop().run_forever()