websocket 2pass bugfix

funasr/runtime/python/websocket/ws_server_2pass.py

@@ -170,8 +170,9 @@ async def async_asr(websocket, audio_in):
                     rec_result = inference_pipeline_punc(text_in=rec_result['text'],
                                                          param_dict=websocket.param_dict_punc)
                     # print("offline", rec_result)
-                message = json.dumps({"mode": "2pass-offline", "text": rec_result["text"], "wav_name": websocket.wav_name})
-                await websocket.send(message)
+                if 'text' in rec_result:
+                    message = json.dumps({"mode": "2pass-offline", "text": rec_result["text"], "wav_name": websocket.wav_name})
+                    await websocket.send(message)
 
 
 async def async_asr_online(websocket, audio_in):