diff --git a/src/Rtp/RtpProcess.cpp b/src/Rtp/RtpProcess.cpp
index 4d27332d..bcfa69e0 100644
--- a/src/Rtp/RtpProcess.cpp
+++ b/src/Rtp/RtpProcess.cpp
@@ -233,11 +233,10 @@ static const char *getCodecName(int codec_id) {
 void RtpProcess::onDecode(int stream,int codecid,int flags,int64_t pts,int64_t dts,const void *data,int bytes) {
     pts /= 90;
     dts /= 90;
-    _stamps[codecid].revise(dts,pts,dts,pts,false);
+    _dts = dts;
 
     switch (codecid) {
         case PSI_STREAM_H264: {
-            _dts = dts;
             if (!_codecid_video) {
                 //获取到视频
                 _codecid_video = codecid;
@@ -262,7 +261,6 @@ void RtpProcess::onDecode(int stream,int codecid,int flags,int64_t pts,int64_t d
         }
 
         case PSI_STREAM_H265: {
-            _dts = dts;
             if (!_codecid_video) {
                 //获取到视频
                 _codecid_video = codecid;
@@ -285,7 +283,6 @@ void RtpProcess::onDecode(int stream,int codecid,int flags,int64_t pts,int64_t d
         }
 
         case PSI_STREAM_AAC: {
-            _dts = dts;
             if (!_codecid_audio) {
                 //获取到音频
                 _codecid_audio = codecid;
@@ -304,7 +301,6 @@ void RtpProcess::onDecode(int stream,int codecid,int flags,int64_t pts,int64_t d
 
         case PSI_STREAM_AUDIO_G711A:
         case PSI_STREAM_AUDIO_G711U: {
-            _dts = dts;
             auto codec = codecid  == PSI_STREAM_AUDIO_G711A ? CodecG711A : CodecG711U;
             if (!_codecid_audio) {
                 //获取到音频
diff --git a/src/Rtp/RtpProcess.h b/src/Rtp/RtpProcess.h
index cf252301..98140bc6 100644
--- a/src/Rtp/RtpProcess.h
+++ b/src/Rtp/RtpProcess.h
@@ -62,7 +62,6 @@ private:
     MultiMediaSourceMuxer::Ptr _muxer;
     std::shared_ptr<FrameMerger> _merger;
     Ticker _last_rtp_time;
-    unordered_map<int,Stamp> _stamps;
     uint32_t _dts = 0;
     Decoder::Ptr _decoder;
     std::weak_ptr<MediaSourceEvent> _listener;