diff --git a/.gitignore b/.gitignore
index 1c66f6b5..853ad8f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,4 +33,5 @@
 
 /cmake-build-debug/
 /.idea/
-/c_wrapper/.idea/
\ No newline at end of file
+/c_wrapper/.idea/
+/release/mac/Debug/
\ No newline at end of file
diff --git a/src/Common/config.cpp b/src/Common/config.cpp
index 1b4bf795..63a22495 100644
--- a/src/Common/config.cpp
+++ b/src/Common/config.cpp
@@ -161,13 +161,16 @@ namespace Rtsp {
 const string kAuthBasic = RTSP_FIELD"authBasic";
 const string kHandshakeSecond = RTSP_FIELD"handshakeSecond";
 const string kKeepAliveSecond = RTSP_FIELD"keepAliveSecond";
-const string kDirectProxy = RTSP_FIELD"directProxy";;
+const string kDirectProxy = RTSP_FIELD"directProxy";
+const string kModifyStamp = RTSP_FIELD"modifyStamp";
+
 onceToken token([](){
 	//默认Md5方式认证
 	mINI::Instance()[kAuthBasic] = 0;
     mINI::Instance()[kHandshakeSecond] = 15;
     mINI::Instance()[kKeepAliveSecond] = 15;
 	mINI::Instance()[kDirectProxy] = 1;
+	mINI::Instance()[kModifyStamp] = true;
 },nullptr);
 
 } //namespace Rtsp
diff --git a/src/Common/config.h b/src/Common/config.h
index 6817e02e..47c06bfd 100644
--- a/src/Common/config.h
+++ b/src/Common/config.h
@@ -209,6 +209,8 @@ extern const string kKeepAliveSecond;
 //假定您的拉流源地址不是264或265或AAC，那么你可以使用直接代理的方式来支持rtsp代理
 //默认开启rtsp直接代理，rtmp由于没有这些问题，是强制开启直接代理的
 extern const string kDirectProxy;
+//rtsp推流是否修改时间戳
+extern const string kModifyStamp;
 } //namespace Rtsp
 
 ////////////RTMP服务器配置///////////
diff --git a/src/Rtsp/RtspDemuxer.cpp b/src/Rtsp/RtspDemuxer.cpp
index faecd3e2..06d75e83 100644
--- a/src/Rtsp/RtspDemuxer.cpp
+++ b/src/Rtsp/RtspDemuxer.cpp
@@ -38,10 +38,6 @@ RtspDemuxer::RtspDemuxer(const string& sdp) {
 	loadSdp(SdpParser(sdp));
 }
 
-RtspDemuxer::RtspDemuxer(const SdpParser &attr) {
-	loadSdp(attr);
-}
-
 void RtspDemuxer::loadSdp(const SdpParser &attr) {
 	auto tracks = attr.getAvailableTrack();
 	for (auto &track : tracks){
diff --git a/src/Rtsp/RtspDemuxer.h b/src/Rtsp/RtspDemuxer.h
index a6e692bb..8a4d407e 100644
--- a/src/Rtsp/RtspDemuxer.h
+++ b/src/Rtsp/RtspDemuxer.h
@@ -41,7 +41,6 @@ class RtspDemuxer : public Demuxer{
 public:
 	typedef std::shared_ptr<RtspDemuxer> Ptr;
 	RtspDemuxer(const string &sdp);
-	RtspDemuxer(const SdpParser &parser);
 	virtual ~RtspDemuxer(){};
 
 	/**
diff --git a/src/Rtsp/RtspPlayer.cpp b/src/Rtsp/RtspPlayer.cpp
index df20c36b..a16bb61e 100644
--- a/src/Rtsp/RtspPlayer.cpp
+++ b/src/Rtsp/RtspPlayer.cpp
@@ -219,14 +219,14 @@ void RtspPlayer::handleResDESCRIBE(const Parser& parser) {
         _strContentBase.pop_back();
     }
 
+	SdpParser sdpParser(parser.Content());
 	//解析sdp
-	_sdpParser.load(parser.Content());
-	_aTrackInfo = _sdpParser.getAvailableTrack();
+	_aTrackInfo = sdpParser.getAvailableTrack();
 
 	if (_aTrackInfo.empty()) {
 		throw std::runtime_error("无有效的Sdp Track");
 	}
-	if (!onCheckSDP(parser.Content(), _sdpParser)) {
+	if (!onCheckSDP(sdpParser.toString())) {
 		throw std::runtime_error("onCheckSDP faied");
 	}
 
diff --git a/src/Rtsp/RtspPlayer.h b/src/Rtsp/RtspPlayer.h
index 4023548b..90a30fa3 100644
--- a/src/Rtsp/RtspPlayer.h
+++ b/src/Rtsp/RtspPlayer.h
@@ -59,7 +59,7 @@ public:
 	float getPacketLossRate(TrackType type) const override;
 protected:
 	//派生类回调函数
-	virtual bool onCheckSDP(const string &strSdp, const SdpParser &parser) = 0;
+	virtual bool onCheckSDP(const string &strSdp) = 0;
 	virtual void onRecvRTP(const RtpPacket::Ptr &pRtppt, const SdpTrack::Ptr &track) = 0;
     uint32_t getProgressMilliSecond() const;
     void seekToMilliSecond(uint32_t ms);
@@ -124,7 +124,6 @@ private:
 	void createUdpSockIfNecessary(int track_idx);
 private:
 	string _strUrl;
-	SdpParser _sdpParser;
 	vector<SdpTrack::Ptr> _aTrackInfo;
 	function<void(const Parser&)> _onHandshake;
     Socket::Ptr _apRtpSock[2]; //RTP端口,trackid idx 为数组下标
diff --git a/src/Rtsp/RtspPlayerImp.h b/src/Rtsp/RtspPlayerImp.h
index 66330866..effa7328 100644
--- a/src/Rtsp/RtspPlayerImp.h
+++ b/src/Rtsp/RtspPlayerImp.h
@@ -61,12 +61,12 @@ public:
     };
 private:
 	//派生类回调函数
-	bool onCheckSDP(const string &sdp, const SdpParser &parser) override {
+	bool onCheckSDP(const string &sdp) override {
 		_pRtspMediaSrc = dynamic_pointer_cast<RtspMediaSource>(_pMediaSrc);
 		if(_pRtspMediaSrc){
-			_pRtspMediaSrc->onGetSDP(parser.toString());
+			_pRtspMediaSrc->onGetSDP(sdp);
 		}
-        _parser.reset(new RtspDemuxer(parser));
+        _parser.reset(new RtspDemuxer(sdp));
         return true;
 	}
 	void onRecvRTP(const RtpPacket::Ptr &rtp, const SdpTrack::Ptr &track) override {
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 2cacd699..af01f5a7 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -242,13 +242,13 @@ void RtspSession::handleReq_ANNOUNCE(const Parser &parser) {
 		throw SockException(Err_shutdown,err);
 	}
 
-	_strSession = makeRandStr(12);
-    _strSdp = parser.Content();
-    _aTrackInfo = SdpParser(_strSdp).getAvailableTrack();
+    SdpParser sdpParser(parser.Content());
+    _strSession = makeRandStr(12);
+    _aTrackInfo = sdpParser.getAvailableTrack();
 
 	_pushSrc = std::make_shared<RtspToRtmpMediaSource>(_mediaInfo._vhost,_mediaInfo._app,_mediaInfo._streamid);
 	_pushSrc->setListener(dynamic_pointer_cast<MediaSourceEvent>(shared_from_this()));
-	_pushSrc->onGetSDP(_strSdp);
+	_pushSrc->onGetSDP(sdpParser.toString());
 	sendRtspResponse("200 OK");
 }
 
@@ -362,9 +362,7 @@ void RtspSession::onAuthSuccess() {
             return;
         }
         //找到了响应的rtsp流
-        strongSelf->_strSdp = rtsp_src->getSdp();
-        SdpParser sdpParser(strongSelf->_strSdp);
-        strongSelf->_aTrackInfo = sdpParser.getAvailableTrack();
+        strongSelf->_aTrackInfo = SdpParser(rtsp_src->getSdp()).getAvailableTrack();
         if (strongSelf->_aTrackInfo.empty()) {
             //该流无效
             strongSelf->send_StreamNotFound();
@@ -383,7 +381,7 @@ void RtspSession::onAuthSuccess() {
                                      {"Content-Base",strongSelf->_strContentBase + "/",
                                       "x-Accept-Retransmit","our-retransmit",
                                       "x-Accept-Dynamic-Rate","1"
-                                     },strongSelf->_strSdp);
+                                     },rtsp_src->getSdp());
     });
 }
 void RtspSession::onAuthFailed(const string &realm,const string &why,bool close) {
@@ -918,7 +916,12 @@ inline void RtspSession::send_NotAcceptable() {
 
 
 void RtspSession::onRtpSorted(const RtpPacket::Ptr &rtppt, int trackidx) {
-
+    GET_CONFIG(bool,modify_stamp,Rtsp::kModifyStamp);
+    if(modify_stamp){
+        int64_t dts_out;
+        _stamp[trackidx].revise(0, 0, dts_out, dts_out);
+        rtppt->timeStamp = dts_out;
+    }
 	_pushSrc->onWrite(rtppt, false);
 }
 inline void RtspSession::onRcvPeerUdpData(int intervaled, const Buffer::Ptr &pBuf, const struct sockaddr& addr) {
diff --git a/src/Rtsp/RtspSession.h b/src/Rtsp/RtspSession.h
index d768d499..a6ca4b00 100644
--- a/src/Rtsp/RtspSession.h
+++ b/src/Rtsp/RtspSession.h
@@ -190,8 +190,6 @@ private:
 	int _iCseq = 0;
 	//ContentBase
 	string _strContentBase;
-	//推流端发送的sdp或播放端请求的sdp
-	string _strSdp;
 	//Session号
 	string _strSession;
 	//是否第一次播放，第一次播放需要鉴权，第二次播放属于暂停恢复
@@ -235,6 +233,8 @@ private:
 	RtcpCounter _aRtcpCnt[2];
 	//rtcp发送时间,trackid idx 为数组下标
 	Ticker _aRtcpTicker[2];
+    //时间戳修整器
+    Stamp _stamp[2];
 };
 
 /**