diff --git a/src/Common/MediaSource.cpp b/src/Common/MediaSource.cpp
index 1ed99e46..1504a1dc 100644
--- a/src/Common/MediaSource.cpp
+++ b/src/Common/MediaSource.cpp
@@ -711,7 +711,7 @@ string MediaSourceEvent::getOriginUrl(MediaSource &sender) const {
 MediaOriginType MediaSourceEventInterceptor::getOriginType(MediaSource &sender) const {
     auto listener = _listener.lock();
     if (!listener) {
-        return MediaOriginType::unknown;
+        return MediaSourceEvent::getOriginType(sender);
     }
     return listener->getOriginType(sender);
 }
@@ -731,7 +731,7 @@ string MediaSourceEventInterceptor::getOriginUrl(MediaSource &sender) const {
 std::shared_ptr<SockInfo> MediaSourceEventInterceptor::getOriginSock(MediaSource &sender) const {
     auto listener = _listener.lock();
     if (!listener) {
-        return nullptr;
+        return MediaSourceEvent::getOriginSock(sender);
     }
     return listener->getOriginSock(sender);
 }
@@ -739,7 +739,7 @@ std::shared_ptr<SockInfo> MediaSourceEventInterceptor::getOriginSock(MediaSource
 bool MediaSourceEventInterceptor::seekTo(MediaSource &sender, uint32_t stamp) {
     auto listener = _listener.lock();
     if (!listener) {
-        return false;
+        return MediaSourceEvent::seekTo(sender, stamp);
     }
     return listener->seekTo(sender, stamp);
 }
@@ -747,7 +747,7 @@ bool MediaSourceEventInterceptor::seekTo(MediaSource &sender, uint32_t stamp) {
 bool MediaSourceEventInterceptor::pause(MediaSource &sender, bool pause) {
     auto listener = _listener.lock();
     if (!listener) {
-        return false;
+        return MediaSourceEvent::pause(sender, pause);
     }
     return listener->pause(sender, pause);
 }
@@ -755,7 +755,7 @@ bool MediaSourceEventInterceptor::pause(MediaSource &sender, bool pause) {
 bool MediaSourceEventInterceptor::speed(MediaSource &sender, float speed) {
     auto listener = _listener.lock();
     if (!listener) {
-        return false;
+        return MediaSourceEvent::speed(sender, speed);
     }
     return listener->speed(sender, speed);
 }
@@ -763,7 +763,7 @@ bool MediaSourceEventInterceptor::speed(MediaSource &sender, float speed) {
 bool MediaSourceEventInterceptor::close(MediaSource &sender) {
     auto listener = _listener.lock();
     if (!listener) {
-        return false;
+        return MediaSourceEvent::close(sender);
     }
     return listener->close(sender);
 }
@@ -771,7 +771,7 @@ bool MediaSourceEventInterceptor::close(MediaSource &sender) {
 int MediaSourceEventInterceptor::totalReaderCount(MediaSource &sender) {
     auto listener = _listener.lock();
     if (!listener) {
-        return sender.readerCount();
+        return MediaSourceEvent::totalReaderCount(sender);
     }
     return listener->totalReaderCount(sender);
 }
@@ -779,49 +779,55 @@ int MediaSourceEventInterceptor::totalReaderCount(MediaSource &sender) {
 void MediaSourceEventInterceptor::onReaderChanged(MediaSource &sender, int size) {
     auto listener = _listener.lock();
     if (!listener) {
-        MediaSourceEvent::onReaderChanged(sender, size);
-    } else {
-        listener->onReaderChanged(sender, size);
+        return MediaSourceEvent::onReaderChanged(sender, size);
     }
+    listener->onReaderChanged(sender, size);
 }
 
 void MediaSourceEventInterceptor::onRegist(MediaSource &sender, bool regist) {
     auto listener = _listener.lock();
-    if (listener) {
-        listener->onRegist(sender, regist);
+    if (!listener) {
+        return MediaSourceEvent::onRegist(sender, regist);
     }
+    listener->onRegist(sender, regist);
 }
 
-float MediaSourceEventInterceptor::getLossRate(MediaSource &sender, TrackType type){
+float MediaSourceEventInterceptor::getLossRate(MediaSource &sender, TrackType type) {
     auto listener = _listener.lock();
-    if (listener) {
-        return listener->getLossRate(sender, type);
+    if (!listener) {
+        return MediaSourceEvent::getLossRate(sender, type);
     }
-    return -1; //异常返回-1
+    return listener->getLossRate(sender, type);
 }
 
 toolkit::EventPoller::Ptr MediaSourceEventInterceptor::getOwnerPoller(MediaSource &sender) {
     auto listener = _listener.lock();
-    if (listener) {
-        return listener->getOwnerPoller(sender);
+    if (!listener) {
+        return MediaSourceEvent::getOwnerPoller(sender);
     }
-    throw std::runtime_error(toolkit::demangle(typeid(*this).name()) + "::getOwnerPoller failed");
+    return listener->getOwnerPoller(sender);
 }
 
 std::shared_ptr<MultiMediaSourceMuxer> MediaSourceEventInterceptor::getMuxer(MediaSource &sender) const {
     auto listener = _listener.lock();
-    return listener ? listener->getMuxer(sender) : nullptr;
+    if (!listener) {
+        return MediaSourceEvent::getMuxer(sender);
+    }
+    return listener->getMuxer(sender);
 }
 
 std::shared_ptr<RtpProcess> MediaSourceEventInterceptor::getRtpProcess(MediaSource &sender) const {
     auto listener = _listener.lock();
-    return listener ? listener->getRtpProcess(sender) : nullptr;
+    if (!listener) {
+        return MediaSourceEvent::getRtpProcess(sender);
+    }
+    return listener->getRtpProcess(sender);
 }
 
 bool MediaSourceEventInterceptor::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path, size_t max_second) {
     auto listener = _listener.lock();
     if (!listener) {
-        return false;
+        return MediaSourceEvent::setupRecord(sender, type, start, custom_path, max_second);
     }
     return listener->setupRecord(sender, type, start, custom_path, max_second);
 }
@@ -829,7 +835,7 @@ bool MediaSourceEventInterceptor::setupRecord(MediaSource &sender, Recorder::typ
 bool MediaSourceEventInterceptor::isRecording(MediaSource &sender, Recorder::type type) {
     auto listener = _listener.lock();
     if (!listener) {
-        return false;
+        return MediaSourceEvent::isRecording(sender, type);
     }
     return listener->isRecording(sender, type);
 }
@@ -837,26 +843,25 @@ bool MediaSourceEventInterceptor::isRecording(MediaSource &sender, Recorder::typ
 vector<Track::Ptr> MediaSourceEventInterceptor::getMediaTracks(MediaSource &sender, bool trackReady) const {
     auto listener = _listener.lock();
     if (!listener) {
-        return vector<Track::Ptr>();
+        return MediaSourceEvent::getMediaTracks(sender, trackReady);
     }
     return listener->getMediaTracks(sender, trackReady);
 }
 
 void MediaSourceEventInterceptor::startSendRtp(MediaSource &sender, const MediaSourceEvent::SendRtpArgs &args, const std::function<void(uint16_t, const toolkit::SockException &)> cb) {
     auto listener = _listener.lock();
-    if (listener) {
-        listener->startSendRtp(sender, args, cb);
-    } else {
-        MediaSourceEvent::startSendRtp(sender, args, cb);
+    if (!listener) {
+        return MediaSourceEvent::startSendRtp(sender, args, cb);
     }
+    listener->startSendRtp(sender, args, cb);
 }
 
-bool MediaSourceEventInterceptor::stopSendRtp(MediaSource &sender, const string &ssrc){
+bool MediaSourceEventInterceptor::stopSendRtp(MediaSource &sender, const string &ssrc) {
     auto listener = _listener.lock();
-    if (listener) {
-        return listener->stopSendRtp(sender, ssrc);
+    if (!listener) {
+        return MediaSourceEvent::stopSendRtp(sender, ssrc);
     }
-    return false;
+    return listener->stopSendRtp(sender, ssrc);
 }
 
 void MediaSourceEventInterceptor::setDelegate(const std::weak_ptr<MediaSourceEvent> &listener) {
@@ -866,7 +871,7 @@ void MediaSourceEventInterceptor::setDelegate(const std::weak_ptr<MediaSourceEve
     _listener = listener;
 }
 
-std::shared_ptr<MediaSourceEvent> MediaSourceEventInterceptor::getDelegate() const{
+std::shared_ptr<MediaSourceEvent> MediaSourceEventInterceptor::getDelegate() const {
     return _listener.lock();
 }