diff --git a/src/Common/MediaSink.cpp b/src/Common/MediaSink.cpp
index c757b57c..64049dc5 100644
--- a/src/Common/MediaSink.cpp
+++ b/src/Common/MediaSink.cpp
@@ -49,14 +49,9 @@ void MediaSink::addTrack(const Track::Ptr &track_in) {
         _ticker.resetTime();
     }
 
-    weak_ptr<MediaSink> weakSelf = shared_from_this();
-    track->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([weakSelf](const Frame::Ptr &frame){
-        auto strongSelf = weakSelf.lock();
-        if(!strongSelf){
-            return;
-        }
-        if(!strongSelf->_anyTrackUnReady){
-            strongSelf->onTrackFrame(frame);
+    track->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([this](const Frame::Ptr &frame){
+        if(!_anyTrackUnReady){
+            onTrackFrame(frame);
         }
     }));
 }
diff --git a/src/Common/MediaSink.h b/src/Common/MediaSink.h
index d117aae5..0f7fc92a 100644
--- a/src/Common/MediaSink.h
+++ b/src/Common/MediaSink.h
@@ -60,7 +60,7 @@ public:
  * 该类的作用是等待Track ready()返回true也就是就绪后再通知派生类进行下一步的操作
  * 目的是输入Frame前由Track截取处理下，以便获取有效的信息（譬如sps pps aa_cfg）
  */
-class MediaSink : public MediaSinkInterface , public TrackSource , public std::enable_shared_from_this<MediaSink>{
+class MediaSink : public MediaSinkInterface , public TrackSource{
 public:
     typedef std::shared_ptr<MediaSink> Ptr;
     MediaSink(){}