diff --git a/src/Device/Device.cpp b/src/Device/Device.cpp
index f68683be..1308551d 100644
--- a/src/Device/Device.cpp
+++ b/src/Device/Device.cpp
@@ -117,6 +117,9 @@ void DevChannel::inputH264(char* pcData, int iDataLen, uint32_t uiStamp) {
 	if (memcmp("\x00\x00\x01", pcData, 3) == 0) {
 		iOffset = 3;
 	}
+    if(uiStamp == 0){
+        uiStamp = (uint32_t)m_aTicker[0].elapsedTime();
+    }
 	m_pRtpMaker_h264->makeRtp(pcData + iOffset, iDataLen - iOffset, uiStamp);
 }
 
@@ -136,6 +139,9 @@ void DevChannel::inputAAC(char *pcDataWithoutAdts,int iDataLen, uint32_t uiStamp
 	if (!m_bSdp_gotAAC && m_audio && pcAdtsHeader) {
 		makeSDP_AAC((unsigned char*) pcAdtsHeader);
 	}
+    if(uiStamp == 0){
+        uiStamp = (uint32_t)m_aTicker[1].elapsedTime();
+    }
     if(pcDataWithoutAdts && iDataLen){
         m_pRtpMaker_aac->makeRtp(pcDataWithoutAdts, iDataLen, uiStamp);
     }
diff --git a/src/Device/Device.h b/src/Device/Device.h
index 18fe68ec..a164e99c 100644
--- a/src/Device/Device.h
+++ b/src/Device/Device.h
@@ -34,6 +34,7 @@
 #include "RTP/RtpMakerAAC.h"
 #include "RTP/RtpMakerH264.h"
 #include "Rtsp/RtspToRtmpMediaSource.h"
+#include "Util/TimeTicker.h"
 
 using namespace std;
 using namespace ZL::Rtsp;
@@ -115,6 +116,7 @@ private:
 	unsigned int m_uiPPSLen = 0;
 	std::shared_ptr<VideoInfo> m_video;
 	std::shared_ptr<AudioInfo> m_audio;
+    SmoothTicker m_aTicker[2];
 };