From 4137f5cf26e7c4b40853959cd2574edfde03aa60 Mon Sep 17 00:00:00 2001
From: 志浩 <neo.dzh@alibaba-inc.com>
Date: 星期五, 07 四月 2023 21:03:34 +0800
Subject: [PATCH] Merge branch 'main' of github.com:alibaba-damo-academy/FunASR into dev_dzh

---
 funasr/runtime/python/websocket/ASR_server.py |  185 ++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 185 insertions(+), 0 deletions(-)

diff --git a/funasr/runtime/python/websocket/ASR_server.py b/funasr/runtime/python/websocket/ASR_server.py
new file mode 100644
index 0000000..827df7b
--- /dev/null
+++ b/funasr/runtime/python/websocket/ASR_server.py
@@ -0,0 +1,185 @@
+import asyncio
+import websockets
+import time
+from queue import Queue
+import threading
+import argparse
+
+from modelscope.pipelines import pipeline
+from modelscope.utils.constant import Tasks
+from modelscope.utils.logger import get_logger
+import logging
+import tracemalloc
+tracemalloc.start()
+
+logger = get_logger(log_level=logging.CRITICAL)
+logger.setLevel(logging.CRITICAL)
+
+
+websocket_users = set()  #缁存姢瀹㈡埛绔垪琛�
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--host",
+                    type=str,
+                    default="0.0.0.0",
+                    required=False,
+                    help="host ip, localhost, 0.0.0.0")
+parser.add_argument("--port",
+                    type=int,
+                    default=10095,
+                    required=False,
+                    help="grpc server port")
+parser.add_argument("--asr_model",
+                    type=str,
+                    default="damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch",
+                    help="model from modelscope")
+parser.add_argument("--vad_model",
+                    type=str,
+                    default="damo/speech_fsmn_vad_zh-cn-16k-common-pytorch",
+                    help="model from modelscope")
+
+parser.add_argument("--punc_model",
+                    type=str,
+                    default="",
+                    help="model from modelscope")
+parser.add_argument("--ngpu",
+                    type=int,
+                    default=1,
+                    help="0 for cpu, 1 for gpu")
+
+args = parser.parse_args()
+
+print("model loading")
+ 
+
+# 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,
+)
+# param_dict_vad = {'in_cache': dict(), "is_final": False}
+  
+# asr
+param_dict_asr = {}
+# param_dict["hotword"] = "灏忎簲 灏忎簲鏈�"  # 璁剧疆鐑瘝锛岀敤绌烘牸闅斿紑
+inference_pipeline_asr = pipeline(
+    task=Tasks.auto_speech_recognition,
+    model=args.asr_model,
+    param_dict=param_dict_asr,
+    ngpu=args.ngpu,
+)
+if args.punc_model != "":
+    # param_dict_punc = {'cache': list()}
+    inference_pipeline_punc = pipeline(
+        task=Tasks.punctuation,
+        model=args.punc_model,
+        model_revision=None,
+        ngpu=args.ngpu,
+    )
+else:
+    inference_pipeline_punc = None
+
+print("model loaded")
+
+
+
+async def ws_serve(websocket, path):
+    #speek = Queue()
+    frames = []  # 瀛樺偍鎵�鏈夌殑甯ф暟鎹�
+    buffer = []  # 瀛樺偍缂撳瓨涓殑甯ф暟鎹紙鏈�澶氫袱涓墖娈碉級
+    RECORD_NUM = 0
+    global websocket_users
+    speech_start, speech_end = False, False
+    # 璋冪敤asr鍑芥暟
+    websocket.param_dict_vad = {'in_cache': dict(), "is_final": False}
+    websocket.param_dict_punc = {'cache': list()}
+    websocket.speek = Queue()  #websocket 娣诲姞杩涢槦鍒楀璞� 璁゛sr璇诲彇璇煶鏁版嵁鍖�
+    websocket.send_msg = Queue()   #websocket 娣诲姞涓槦鍒楀璞�  璁﹚s鍙戦�佹秷鎭埌瀹㈡埛绔�
+    websocket_users.add(websocket)
+    ss = threading.Thread(target=asr, args=(websocket,))
+    ss.start()
+    
+    try:
+        async for message in websocket:
+            #voices.put(message)
+            #print("put")
+            #await websocket.send("123")
+            buffer.append(message)
+            if len(buffer) > 2:
+                buffer.pop(0)  # 濡傛灉缂撳瓨瓒呰繃涓や釜鐗囨锛屽垯鍒犻櫎鏈�鏃╃殑涓�涓�
+              
+            if speech_start:
+                frames.append(message)
+                RECORD_NUM += 1
+            speech_start_i, speech_end_i = vad(message, websocket)
+            #print(speech_start_i, speech_end_i)
+            if speech_start_i:
+                speech_start = speech_start_i
+                frames = []
+                frames.extend(buffer)  # 鎶婁箣鍓�2涓闊虫暟鎹揩鍔犲叆
+            if speech_end_i or RECORD_NUM > 300:
+                speech_start = False
+                audio_in = b"".join(frames)
+                websocket.speek.put(audio_in)
+                frames = []  # 娓呯┖鎵�鏈夌殑甯ф暟鎹�
+                buffer = []  # 娓呯┖缂撳瓨涓殑甯ф暟鎹紙鏈�澶氫袱涓墖娈碉級
+                RECORD_NUM = 0
+            if not websocket.send_msg.empty():
+                await websocket.send(websocket.send_msg.get())
+                websocket.send_msg.task_done()
+
+     
+    except websockets.ConnectionClosed:
+        print("ConnectionClosed...", websocket_users)    # 閾炬帴鏂紑
+        websocket_users.remove(websocket)
+    except websockets.InvalidState:
+        print("InvalidState...")    # 鏃犳晥鐘舵��
+    except Exception as e:
+        print("Exception:", e)
+ 
+
+def asr(websocket):  # ASR鎺ㄧ悊
+        global inference_pipeline_asr, inference_pipeline_punc
+        # global param_dict_punc
+        global websocket_users
+        while websocket in  websocket_users:
+            if not websocket.speek.empty():
+                audio_in = websocket.speek.get()
+                websocket.speek.task_done()
+                if len(audio_in) > 0:
+                    rec_result = inference_pipeline_asr(audio_in=audio_in)
+                    if inference_pipeline_punc is not None and 'text' in rec_result:
+                        rec_result = inference_pipeline_punc(text_in=rec_result['text'], param_dict=websocket.param_dict_punc)
+                    # print(rec_result)
+                    if "text" in rec_result:
+                        websocket.send_msg.put(rec_result["text"]) # 瀛樺叆鍙戦�侀槦鍒�  鐩存帴璋冪敤send鍙戦�佷笉浜�
+               
+            time.sleep(0.1)
+
+def vad(data, websocket):  # VAD鎺ㄧ悊
+    global inference_pipeline_vad
+    #print(type(data))
+    # print(param_dict_vad)
+    segments_result = inference_pipeline_vad(audio_in=data, param_dict=websocket.param_dict_vad)
+    # print(segments_result)
+    # print(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 = True
+    if segments_result["text"][0][1] != -1:
+        speech_end = True
+    return speech_start, speech_end
+
+ 
+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()
\ No newline at end of file

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