feat: 增加讯飞asr功能

utils/xf_asr_utils.py

@@ -2,6 +2,7 @@ import datetime
 import hashlib
 import base64
 import hmac
+import json
 from urllib.parse import urlencode
 from wsgiref.handlers import format_date_time
 from datetime import datetime
@@ -35,3 +36,29 @@ def generate_xf_asr_url():
     }
     url = url + '?' + urlencode(v)
     return url
+
+
+def make_first_frame(buf):
+    first_frame = {"common" : {"app_id":Config.XF_ASR.APP_ID},"business" : {"domain":"iat","language":"zh_cn","accent":"mandarin","vad_eos":10000},
+                   "data":{"status":0,"format":"audio/L16;rate=8000","audio":buf,"encoding":"raw"}}
+    return json.dumps(first_frame)
+
+def make_continue_frame(buf):
+    continue_frame = {"data":{"status":1,"format":"audio/L16;rate=8000","audio":buf,"encoding":"raw"}}
+    return json.dumps(continue_frame)
+
+def make_last_frame(buf):
+    last_frame = {"data":{"status":2,"format":"audio/L16;rate=8000","audio":buf,"encoding":"raw"}}
+    return json.dumps(last_frame)
+
+def parse_xfasr_recv(message):
+    code = message['code']
+    if code!=0:
+        raise Exception("讯飞ASR错误码："+str(code))
+    else:
+        data = message['data']['result']['ws']
+        result = ""
+        for i in data:
+            for w in i['cw']:
+                result += w['w']
+        return result