diff --git a/src/Rtp/RtpSelector.cpp b/src/Rtp/RtpSelector.cpp
index e30d4af3..f475159e 100644
--- a/src/Rtp/RtpSelector.cpp
+++ b/src/Rtp/RtpSelector.cpp
@@ -32,10 +32,6 @@ namespace mediakit{
 INSTANCE_IMP(RtpSelector);
 
 bool RtpSelector::inputRtp(const char *data, int data_len,const struct sockaddr *addr,uint32_t *dts_out) {
-    if(_last_rtp_time.elapsedTime() > 3000){
-        _last_rtp_time.resetTime();
-        onManager();
-    }
     uint32_t ssrc = 0;
     if(!getSSRC(data,data_len,ssrc)){
         WarnL << "get ssrc from rtp failed:" << data_len;
@@ -67,10 +63,26 @@ RtpProcess::Ptr RtpSelector::getProcess(uint32_t ssrc,bool makeNew) {
     if(!ref){
         ref = std::make_shared<RtpProcessHelper>(ssrc,shared_from_this());
         ref->attachEvent();
+        createTimer();
     }
     return ref->getProcess();
 }
 
+void RtpSelector::createTimer() {
+    if (!_timer) {
+        //创建超时管理定时器
+        weak_ptr<RtpSelector> weakSelf = shared_from_this();
+        _timer = std::make_shared<Timer>(3.0, [weakSelf] {
+            auto strongSelf = weakSelf.lock();
+            if (!strongSelf) {
+                return false;
+            }
+            strongSelf->onManager();
+            return true;
+        }, EventPollerPool::Instance().getPoller());
+    }
+}
+
 void RtpSelector::delProcess(uint32_t ssrc,const RtpProcess *ptr) {
     lock_guard<decltype(_mtx_map)> lck(_mtx_map);
     auto it = _map_rtp_process.find(ssrc);
diff --git a/src/Rtp/RtpSelector.h b/src/Rtp/RtpSelector.h
index f1b4b97f..9edaca54 100644
--- a/src/Rtp/RtpSelector.h
+++ b/src/Rtp/RtpSelector.h
@@ -69,10 +69,11 @@ public:
     void delProcess(uint32_t ssrc,const RtpProcess *ptr);
 private:
     void onManager();
+    void createTimer();
 private:
     unordered_map<uint32_t,RtpProcessHelper::Ptr> _map_rtp_process;
     recursive_mutex _mtx_map;
-    Ticker _last_rtp_time;
+    Timer::Ptr _timer;
 };
 
 }//namespace mediakit