diff --git a/Common.py b/Common.py
index d24b106..25376ef 100644
--- a/Common.py
+++ b/Common.py
@@ -312,6 +312,18 @@ def loginBilibili(force=False):
 
 class downloader(XiGuaLiveApi):
     __playlist = None
+    __danmakuFile = None
+    __danmakuBiasTime = None
+
+    def onChat(self, chat):
+        if self.__danmakuFile is not None and self.__danmakuFile.writable():
+            now = datetime.now()
+            if self.__danmakuBiasTime is None:
+                return
+            ts = (now - self.__danmakuBiasTime).total_seconds()
+            _c = """<d p="{:.2f},1,24,16777215,{:.0f},0,{},0" user="{}">{}</d>""".format(ts, now.timestamp()*1000, chat.user.ID, chat.user.name, chat.content)
+            self.__danmakuFile.write(_c.encode("UTF-8"))
+            self.__danmakuFile.flush()
 
     @property
     def playlist(self):
@@ -357,6 +369,12 @@ class downloader(XiGuaLiveApi):
         else:
             self.playlist = None
 
+    def initSave(self, f):
+        if self.__danmakuFile is not None and not self.__danmakuFile.closed:
+            self.__danmakuFile.close()
+        self.__danmakuBiasTime = datetime.now()
+        self.__danmakuFile = open(f, "wb")
+
 
 api = downloader(config["l_u"])
 
diff --git a/liveDownloader.py b/liveDownloader.py
index 18734dc..b8ae667 100644
--- a/liveDownloader.py
+++ b/liveDownloader.py
@@ -20,6 +20,7 @@ def download():
         except Exception as e:
             Common.appendError("Download >{}< with Exception [{}]".format(path,e.__str__()))
             break
+        Common.api.initSave(path+".xml")
         Common.appendDownloadStatus("Download >{}< Start".format(path))
         f = open(path, "wb")
         _size = 0
@@ -125,7 +126,7 @@ def run():
             if not Common.forceNotEncode:
                 awakeEncode()
             try:
-                Common.api.updRoomInfo()
+                Common.api.getDanmaku()
             except Exception as e:
                 Common.appendError(e.__str__())
             finally: