diff --git a/webrtc/WebRtcPusher.h b/webrtc/WebRtcPusher.h
index 865c5672..4b92961b 100644
--- a/webrtc/WebRtcPusher.h
+++ b/webrtc/WebRtcPusher.h
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -40,6 +40,8 @@ protected:
     // 获取媒体源客户端相关信息
     std::shared_ptr<SockInfo> getOriginSock(mediakit::MediaSource &sender) const override;
 
+    int getLossRate(mediakit::MediaSource &sender,mediakit::TrackType type) override;
+
 private:
     WebRtcPusher(const EventPoller::Ptr &poller, const mediakit::RtspMediaSourceImp::Ptr &src,
                  const std::shared_ptr<void> &ownership, const mediakit::MediaInfo &info, const mediakit::ProtocolOption &option);