diff --git a/src/Rtp/PSEncoder.cpp b/src/Rtp/PSEncoder.cpp
index dc37f9e2..5195626d 100644
--- a/src/Rtp/PSEncoder.cpp
+++ b/src/Rtp/PSEncoder.cpp
@@ -11,6 +11,7 @@
 #if defined(ENABLE_RTPPROXY)
 #include "PSEncoder.h"
 #include "Extension/H264.h"
+#include "Rtsp/RtspMuxer.h"
 namespace mediakit{
 
 PSEncoder::PSEncoder() {
@@ -147,24 +148,6 @@ void PSEncoder::inputFrame(const Frame::Ptr &frame) {
     }
 }
 
-////////////////////////////////////////////////////////////////////////////////////////////////
-
-class RingDelegateHelper : public RingDelegate<RtpPacket::Ptr> {
-public:
-    typedef function<void(RtpPacket::Ptr in, bool is_key)> onRtp;
-
-    ~RingDelegateHelper() override{}
-    RingDelegateHelper(onRtp on_rtp){
-        _on_rtp = std::move(on_rtp);
-    }
-    void onWrite(RtpPacket::Ptr in, bool is_key) override{
-        _on_rtp(std::move(in), is_key);
-    }
-
-private:
-    onRtp _on_rtp;
-};
-
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 PSEncoderImp::PSEncoderImp(uint32_t ssrc, uint8_t payload_type) {
diff --git a/src/Rtsp/RtspMuxer.cpp b/src/Rtsp/RtspMuxer.cpp
index ddb42751..93d2940d 100644
--- a/src/Rtsp/RtspMuxer.cpp
+++ b/src/Rtsp/RtspMuxer.cpp
@@ -13,20 +13,6 @@
 
 namespace mediakit {
 
-class RingDelegateHelper : public RingDelegate<RtpPacket::Ptr> {
-public:
-    RingDelegateHelper(RtspMuxer *delegate) {
-        _delegate = delegate;
-    }
-
-    void onWrite(RtpPacket::Ptr in, bool is_key) override {
-        _delegate->onRtp(std::move(in), is_key);
-    }
-
-private:
-    RtspMuxer *_delegate;
-};
-
 void RtspMuxer::onRtp(RtpPacket::Ptr in, bool is_key) {
     if (_rtp_stamp[in->type] != in->getHeader()->stamp) {
         //rtp时间戳变化才计算ntp，节省cpu资源
@@ -51,7 +37,9 @@ RtspMuxer::RtspMuxer(const TitleSdp::Ptr &title) {
     }
     _rtpRing = std::make_shared<RtpRing::RingType>();
     _rtpInterceptor = std::make_shared<RtpRing::RingType>();
-    _rtpInterceptor->setDelegate(std::make_shared<RingDelegateHelper>(this));
+    _rtpInterceptor->setDelegate(std::make_shared<RingDelegateHelper>([this](RtpPacket::Ptr in, bool is_key) {
+        onRtp(std::move(in), is_key);
+    }));
     _ntp_stamp_start = getCurrentMillisecond(true);
 }
 
diff --git a/src/Rtsp/RtspMuxer.h b/src/Rtsp/RtspMuxer.h
index 8ae7cb39..eab2cbeb 100644
--- a/src/Rtsp/RtspMuxer.h
+++ b/src/Rtsp/RtspMuxer.h
@@ -17,12 +17,28 @@
 #include "RtpCodec.h"
 
 namespace mediakit{
+
+class RingDelegateHelper : public RingDelegate<RtpPacket::Ptr> {
+public:
+    typedef function<void(RtpPacket::Ptr in, bool is_key)> onRtp;
+
+    ~RingDelegateHelper() override{}
+    RingDelegateHelper(onRtp on_rtp){
+        _on_rtp = std::move(on_rtp);
+    }
+    void onWrite(RtpPacket::Ptr in, bool is_key) override{
+        _on_rtp(std::move(in), is_key);
+    }
+
+private:
+    onRtp _on_rtp;
+};
+
 /**
 * rtsp生成器
 */
 class RtspMuxer : public MediaSinkInterface{
 public:
-    friend class RingDelegateHelper;
     using Ptr = std::shared_ptr<RtspMuxer>;
 
     /**
@@ -62,7 +78,6 @@ public:
 
 private:
     void onRtp(RtpPacket::Ptr in, bool is_key);
-    void computeNtp(const Frame::Ptr &frame);
     void trySyncTrack();
 
 private: