diff --git a/src/Http/HlsPlayer.cpp b/src/Http/HlsPlayer.cpp
index d1b78186..0e5b55c9 100644
--- a/src/Http/HlsPlayer.cpp
+++ b/src/Http/HlsPlayer.cpp
@@ -241,7 +241,7 @@ void HlsPlayerImp::onPacket(const char *data,uint64_t len) {
     }
 
     if (!_decoder) {
-        _decoder = DecoderImp::createDecoder(DecoderImp::decoder_ts, dynamic_pointer_cast<HlsPlayerImp>(shared_from_this()));
+        _decoder = DecoderImp::createDecoder(DecoderImp::decoder_ts, this);
     }
 
     if (_decoder) {
diff --git a/src/Rtp/Decoder.cpp b/src/Rtp/Decoder.cpp
index 2e3349dd..5c8a7662 100644
--- a/src/Rtp/Decoder.cpp
+++ b/src/Rtp/Decoder.cpp
@@ -42,7 +42,7 @@ static Decoder::Ptr createDecoder_l(DecoderImp::Type type) {
 
 /////////////////////////////////////////////////////////////
 
-DecoderImp::Ptr DecoderImp::createDecoder(Type type, const MediaSinkInterface::Ptr &sink){
+DecoderImp::Ptr DecoderImp::createDecoder(Type type, MediaSinkInterface *sink){
     auto decoder =  createDecoder_l(type);
     if(!decoder){
         return nullptr;
@@ -54,7 +54,7 @@ int DecoderImp::input(const uint8_t *data, int bytes){
     return _decoder->input(data, bytes);
 }
 
-DecoderImp::DecoderImp(const Decoder::Ptr &decoder,const MediaSinkInterface::Ptr &sink){
+DecoderImp::DecoderImp(const Decoder::Ptr &decoder, MediaSinkInterface *sink){
     _decoder = decoder;
     _sink = sink;
     _decoder->setOnDecode([this](int stream,int codecid,int flags,int64_t pts,int64_t dts,const void *data,int bytes){
diff --git a/src/Rtp/Decoder.h b/src/Rtp/Decoder.h
index c20bc65d..a74ee9f2 100644
--- a/src/Rtp/Decoder.h
+++ b/src/Rtp/Decoder.h
@@ -53,7 +53,7 @@ public:
     typedef std::shared_ptr<DecoderImp> Ptr;
     ~DecoderImp() = default;
 
-    static Ptr createDecoder(Type type, const MediaSinkInterface::Ptr &sink);
+    static Ptr createDecoder(Type type, MediaSinkInterface *sink);
     int input(const uint8_t *data, int bytes);
 
 protected:
@@ -61,12 +61,12 @@ protected:
     void onFrame(const Frame::Ptr &frame);
 
 private:
-    DecoderImp(const Decoder::Ptr &decoder, const MediaSinkInterface::Ptr &sink);
+    DecoderImp(const Decoder::Ptr &decoder, MediaSinkInterface *sink);
     void onDecode(int stream,int codecid,int flags,int64_t pts,int64_t dts,const void *data,int bytes);
 
 private:
     Decoder::Ptr _decoder;
-    MediaSinkInterface::Ptr _sink;
+    MediaSinkInterface *_sink;
     FrameMerger _merger;
     int _codecid_video = 0;
     int _codecid_audio = 0;
diff --git a/src/Rtp/RtpProcess.cpp b/src/Rtp/RtpProcess.cpp
index 008c7406..a3c72a8d 100644
--- a/src/Rtp/RtpProcess.cpp
+++ b/src/Rtp/RtpProcess.cpp
@@ -152,11 +152,11 @@ void RtpProcess::onRtpDecode(const uint8_t *packet, int bytes, uint32_t timestam
         if (checkTS(packet, bytes)) {
             //猜测是ts负载
             InfoP(this) << "judged to be TS";
-            _decoder = DecoderImp::createDecoder(DecoderImp::decoder_ts, shared_from_this());
+            _decoder = DecoderImp::createDecoder(DecoderImp::decoder_ts, this);
         } else {
             //猜测是ps负载
             InfoP(this) << "judged to be PS";
-            _decoder = DecoderImp::createDecoder(DecoderImp::decoder_ps, shared_from_this());
+            _decoder = DecoderImp::createDecoder(DecoderImp::decoder_ps, this);
         }
     }