diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index 28c3d20c..2bb688aa 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit 28c3d20c3a94b6e72bcd2d4e7057d28b8215594a
+Subproject commit 2bb688aa9b29b79f262e3f90613c177ebac109ac
diff --git a/README.md b/README.md
index 4e79e725..0c46d8c5 100644
--- a/README.md
+++ b/README.md
@@ -164,8 +164,9 @@ bash build_docker_images.sh
    - [DotNetCore的RESTful客户端](https://github.com/MingZhuLiu/ZLMediaKit.DotNetCore.Sdk)
    
  - 播放器
+   - [基于wasm支持H265的播放器](https://github.com/numberwolf/h265web.js)
    - [基于MSE的websocket-fmp4播放器](https://github.com/v354412101/wsPlayer) 
-
+   
 ## 授权协议
 
 本项目自有代码使用宽松的MIT协议，在保留版权信息的情况下可以自由应用于各自商用、非商业的项目。
diff --git a/server/main.cpp b/server/main.cpp
index bb972bfb..0842f321 100644
--- a/server/main.cpp
+++ b/server/main.cpp
@@ -194,8 +194,6 @@ int start_main(int argc,char *argv[]) {
         string ssl_file = cmd_main["ssl"];
         int threads = cmd_main["threads"];
 
-        setThreadName("main thread");
-
         //设置日志
         Logger::Instance().add(std::make_shared<ConsoleChannel>("ConsoleChannel", logLevel));
 #ifndef ANDROID
@@ -248,28 +246,28 @@ int start_main(int argc,char *argv[]) {
 
         //简单的telnet服务器，可用于服务器调试，但是不能使用23端口，否则telnet上了莫名其妙的现象
         //测试方法:telnet 127.0.0.1 9000
-        TcpServer::Ptr shellSrv = std::make_shared<TcpServer>();
+        auto shellSrv = std::make_shared<TcpServer>();
 
         //rtsp[s]服务器, 可用于诸如亚马逊echo show这样的设备访问
-        TcpServer::Ptr rtspSrv = std::make_shared<TcpServer>();;
-        TcpServer::Ptr rtspSSLSrv = std::make_shared<TcpServer>();;
+        auto rtspSrv = std::make_shared<TcpServer>();;
+        auto rtspSSLSrv = std::make_shared<TcpServer>();;
 
         //rtmp[s]服务器
-        TcpServer::Ptr rtmpSrv = std::make_shared<TcpServer>();;
-        TcpServer::Ptr rtmpsSrv = std::make_shared<TcpServer>();;
+        auto rtmpSrv = std::make_shared<TcpServer>();;
+        auto rtmpsSrv = std::make_shared<TcpServer>();;
 
         //http[s]服务器
-        TcpServer::Ptr httpSrv = std::make_shared<TcpServer>();;
-        TcpServer::Ptr httpsSrv = std::make_shared<TcpServer>();;
+        auto httpSrv = std::make_shared<TcpServer>();;
+        auto httpsSrv = std::make_shared<TcpServer>();;
 
 #if defined(ENABLE_RTPPROXY)
         //GB28181 rtp推流端口，支持UDP/TCP
-        RtpServer::Ptr rtpServer = std::make_shared<RtpServer>();
+        auto rtpServer = std::make_shared<RtpServer>();
 #endif//defined(ENABLE_RTPPROXY)
 
 #if defined(ENABLE_WEBRTC)
         //webrtc udp服务器
-        UdpServer::Ptr rtcSrv = std::make_shared<UdpServer>();
+        auto rtcSrv = std::make_shared<UdpServer>();
         rtcSrv->setOnCreateSocket([](const EventPoller::Ptr &poller, const Buffer::Ptr &buf, struct sockaddr *, int) {
             if (!buf) {
                 return Socket::createSocket(poller, false);
diff --git a/src/Extension/H264Rtp.cpp b/src/Extension/H264Rtp.cpp
index 143d3a94..e28cfa3d 100644
--- a/src/Extension/H264Rtp.cpp
+++ b/src/Extension/H264Rtp.cpp
@@ -268,10 +268,6 @@ void H264RtpEncoder::packRtpStapA(const char *ptr, size_t len, uint32_t pts, boo
 bool H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
     auto ptr = frame->data() + frame->prefixSize();
     switch (H264_TYPE(ptr[0])) {
-        case H264Frame::NAL_AUD:
-        case H264Frame::NAL_SEI : {
-            return false;
-        }
         case H264Frame::NAL_SPS: {
             _sps = Frame::getCacheAbleFrame(frame);
             return true;
diff --git a/webrtc/Sdp.cpp b/webrtc/Sdp.cpp
index 0831a1cf..82f28acf 100644
--- a/webrtc/Sdp.cpp
+++ b/webrtc/Sdp.cpp
@@ -1737,16 +1737,21 @@ RETRY:
 
 void RtcConfigure::setPlayRtspInfo(const string &sdp){
     RtcSession session;
+    video.direction = RtpDirection::inactive;
+    audio.direction = RtpDirection::inactive;
+
     session.loadFrom(sdp);
     for (auto &m : session.media) {
         switch (m.type) {
             case TrackVideo : {
+                video.direction = RtpDirection::sendonly;
                 _rtsp_video_plan = std::make_shared<RtcCodecPlan>(m.plan[0]);
                 video.preferred_codec.clear();
                 video.preferred_codec.emplace_back(getCodecId(_rtsp_video_plan->codec));
                 break;
             }
             case TrackAudio : {
+                 audio.direction = RtpDirection::sendonly;
                 _rtsp_audio_plan = std::make_shared<RtcCodecPlan>(m.plan[0]);
                 audio.preferred_codec.clear();
                 audio.preferred_codec.emplace_back(getCodecId(_rtsp_audio_plan->codec));
diff --git a/webrtc/TwccContext.cpp b/webrtc/TwccContext.cpp
index 6a3bfbd6..ed565186 100644
--- a/webrtc/TwccContext.cpp
+++ b/webrtc/TwccContext.cpp
@@ -21,7 +21,7 @@ enum class ExtSeqStatus : int {
 
 void TwccContext::onRtp(uint32_t ssrc, uint16_t twcc_ext_seq, uint64_t stamp_ms) {
     switch ((ExtSeqStatus) checkSeqStatus(twcc_ext_seq)) {
-        case ExtSeqStatus::jumped: /*回环后，收到回环前的大ext seq包,过滤掉*/ return;
+        case ExtSeqStatus::jumped: /*seq异常,过滤掉*/ return;
         case ExtSeqStatus::looped: /*回环，触发发送twcc rtcp*/ onSendTwcc(ssrc); break;
         case ExtSeqStatus::normal: break;
         default: /*不可达*/assert(0); break;
@@ -56,16 +56,29 @@ int TwccContext::checkSeqStatus(uint16_t twcc_ext_seq) const {
         return (int) ExtSeqStatus::normal;
     }
     auto max = _rtp_recv_status.rbegin()->first;
-    if (max > 0xFF00 && twcc_ext_seq < 0xFF) {
-        //发生回环了
+    auto delta = (int32_t) twcc_ext_seq - (int32_t) max;
+    if (delta > 0 && delta < 0xFFFF / 2) {
+        //正常增长
+        return (int) ExtSeqStatus::normal;
+    }
+    if (delta < -0xFF00) {
+        //回环
         TraceL << "rtp twcc ext seq looped:" << max << " -> " << twcc_ext_seq;
         return (int) ExtSeqStatus::looped;
     }
-    if (twcc_ext_seq - max > 0xFFFF / 2) {
-        TraceL << "rtp twcc ext seq jumped:" << max << " -> " << twcc_ext_seq;
+    if (delta > 0xFF00) {
+        //回环后收到前面大的乱序的包，无法处理，丢弃
+        TraceL << "rtp twcc ext seq jumped after looped:" << max << " -> " << twcc_ext_seq;
         return (int) ExtSeqStatus::jumped;
     }
-    return (int) ExtSeqStatus::normal;
+    auto min = _rtp_recv_status.begin()->first;
+    if (min <= twcc_ext_seq || twcc_ext_seq <= max) {
+        //正常回退
+        return (int) ExtSeqStatus::normal;
+    }
+    //seq莫名的大幅增加或减少，无法处理，丢弃
+    TraceL << "rtp twcc ext seq jumped:" << max << " -> " << twcc_ext_seq;
+    return (int) ExtSeqStatus::jumped;
 }
 
 void TwccContext::onSendTwcc(uint32_t ssrc) {
diff --git a/webrtc/WebRtcSession.cpp b/webrtc/WebRtcSession.cpp
index 1443269b..6a83ac06 100644
--- a/webrtc/WebRtcSession.cpp
+++ b/webrtc/WebRtcSession.cpp
@@ -55,7 +55,7 @@ void WebRtcSession::onRecv(const Buffer::Ptr &buffer) {
         //只允许寻找一次transport
         _find_transport = false;
         auto user_name = getUserName(buffer);
-        _identifier = user_name + '-' + to_string(reinterpret_cast<uint64_t>(this));
+        _identifier = to_string(getSock()->rawFD()) + '-' + user_name;
         auto transport = WebRtcTransportManager::Instance().getItem(user_name);
         CHECK(transport && transport->getPoller()->isCurrentThread());
         transport->setSession(shared_from_this());
diff --git a/webrtc/WebRtcTransport.cpp b/webrtc/WebRtcTransport.cpp
index 2f396374..317140b8 100644
--- a/webrtc/WebRtcTransport.cpp
+++ b/webrtc/WebRtcTransport.cpp
@@ -43,9 +43,12 @@ static onceToken token([]() {
 
 }//namespace RTC
 
+static atomic<uint64_t> s_key{0};
+
 WebRtcTransport::WebRtcTransport(const EventPoller::Ptr &poller) {
     _poller = poller;
-    _identifier = to_string(reinterpret_cast<uint64_t>(this));
+    _identifier = "zlm_"+to_string(++s_key);
+    _packet_pool.setSize(64);
 }
 
 void WebRtcTransport::onCreate(){
@@ -69,7 +72,7 @@ const string &WebRtcTransport::getIdentifier() const {
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 void WebRtcTransport::OnIceServerSendStunPacket(const RTC::IceServer *iceServer, const RTC::StunPacket *packet, RTC::TransportTuple *tuple) {
-    onSendSockData((char *) packet->GetData(), packet->GetSize(), (struct sockaddr_in *) tuple);
+    sendSockData((char *) packet->GetData(), packet->GetSize(), tuple);
 }
 
 void WebRtcTransport::OnIceServerSelectedTuple(const RTC::IceServer *iceServer, RTC::TransportTuple *tuple) {
@@ -110,7 +113,7 @@ void WebRtcTransport::OnDtlsTransportConnected(
 }
 
 void WebRtcTransport::OnDtlsTransportSendData(const RTC::DtlsTransport *dtlsTransport, const uint8_t *data, size_t len) {
-    onSendSockData((char *)data, len);
+    sendSockData((char *)data, len, nullptr);
 }
 
 void WebRtcTransport::OnDtlsTransportConnecting(const RTC::DtlsTransport *dtlsTransport) {
@@ -132,10 +135,10 @@ void WebRtcTransport::OnDtlsTransportApplicationDataReceived(const RTC::DtlsTran
 }
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-void WebRtcTransport::onSendSockData(const char *buf, size_t len, bool flush){
-    auto tuple = _ice_server->GetSelectedTuple();
-    assert(tuple);
-    onSendSockData(buf, len, (struct sockaddr_in *) tuple, flush);
+void WebRtcTransport::sendSockData(const char *buf, size_t len, RTC::TransportTuple *tuple){
+    auto pkt = _packet_pool.obtain();
+    pkt->assign(buf, len);
+    onSendSockData(std::move(pkt), true, tuple ? tuple : _ice_server->GetSelectedTuple());
 }
 
 RTC::TransportTuple* WebRtcTransport::getSelectedTuple() const{
@@ -266,23 +269,28 @@ void WebRtcTransport::inputSockData(char *buf, int len, RTC::TransportTuple *tup
 
 void WebRtcTransport::sendRtpPacket(const char *buf, int len, bool flush, void *ctx) {
     if (_srtp_session_send) {
+        auto pkt = _packet_pool.obtain();
         //预留rtx加入的两个字节
-        CHECK((size_t)len + SRTP_MAX_TRAILER_LEN + 2 <= sizeof(_srtp_buf));
-        memcpy(_srtp_buf, buf, len);
-        onBeforeEncryptRtp((char *) _srtp_buf, len, ctx);
-        if (_srtp_session_send->EncryptRtp(_srtp_buf, &len)) {
-            onSendSockData((char *) _srtp_buf, len, flush);
+        pkt->setCapacity((size_t) len + SRTP_MAX_TRAILER_LEN + 2);
+        pkt->assign(buf, len);
+        onBeforeEncryptRtp(pkt->data(), len, ctx);
+        if (_srtp_session_send->EncryptRtp(reinterpret_cast<uint8_t *>(pkt->data()), &len)) {
+            pkt->setSize(len);
+            onSendSockData(std::move(pkt), flush);
         }
     }
 }
 
-void WebRtcTransport::sendRtcpPacket(const char *buf, int len, bool flush, void *ctx){
+void WebRtcTransport::sendRtcpPacket(const char *buf, int len, bool flush, void *ctx) {
     if (_srtp_session_send) {
-        CHECK((size_t)len + SRTP_MAX_TRAILER_LEN <= sizeof(_srtp_buf));
-        memcpy(_srtp_buf, buf, len);
-        onBeforeEncryptRtcp((char *) _srtp_buf, len, ctx);
-        if (_srtp_session_send->EncryptRtcp(_srtp_buf, &len)) {
-            onSendSockData((char *) _srtp_buf, len, flush);
+        auto pkt = _packet_pool.obtain();
+        //预留rtx加入的两个字节
+        pkt->setCapacity((size_t) len + SRTP_MAX_TRAILER_LEN + 2);
+        pkt->assign(buf, len);
+        onBeforeEncryptRtcp(pkt->data(), len, ctx);
+        if (_srtp_session_send->EncryptRtcp(reinterpret_cast<uint8_t *>(pkt->data()), &len)) {
+            pkt->setSize(len);
+            onSendSockData(std::move(pkt), flush);
         }
     }
 }
@@ -313,7 +321,6 @@ void WebRtcTransportImp::onCreate(){
 
 WebRtcTransportImp::WebRtcTransportImp(const EventPoller::Ptr &poller) : WebRtcTransport(poller) {
     InfoL << getIdentifier();
-    _packet_pool.setSize(64);
 }
 
 WebRtcTransportImp::~WebRtcTransportImp() {
@@ -325,16 +332,14 @@ void WebRtcTransportImp::onDestory() {
     unregisterSelf();
 }
 
-void WebRtcTransportImp::onSendSockData(const char *buf, size_t len, struct sockaddr_in *dst, bool flush) {
+void WebRtcTransportImp::onSendSockData(Buffer::Ptr buf, bool flush, RTC::TransportTuple *tuple) {
     if (!_session) {
-        WarnL << "send data failed:" << len;
+        WarnL << "send data failed:" << buf->size();
         return;
     }
-    auto ptr = _packet_pool.obtain();
-    ptr->assign(buf, len);
     //一次性发送一帧的rtp数据，提高网络io性能
     _session->setSendFlushFlag(flush);
-    _session->send(std::move(ptr));
+    _session->send(std::move(buf));
 }
 
 ///////////////////////////////////////////////////////////////////
@@ -807,7 +812,8 @@ void WebRtcTransportImp::onSendRtp(const RtpPacket::Ptr &rtp, bool flush, bool r
         }
 #endif
     } else {
-        WarnL << "send rtx rtp:" << rtp->getSeq();
+        //发送rtx重传包
+        TraceL << "send rtx rtp:" << rtp->getSeq();
     }
     pair<bool/*rtx*/, MediaTrack *> ctx{rtx, track.get()};
     sendRtpPacket(rtp->data() + RtpPacket::kRtpTcpHeaderSize, rtp->size() - RtpPacket::kRtpTcpHeaderSize, flush, &ctx);
diff --git a/webrtc/WebRtcTransport.h b/webrtc/WebRtcTransport.h
index 2879944a..d557b710 100644
--- a/webrtc/WebRtcTransport.h
+++ b/webrtc/WebRtcTransport.h
@@ -135,7 +135,7 @@ protected:
     virtual void onStartWebRTC() = 0;
     virtual void onRtcConfigure(RtcConfigure &configure) const;
     virtual void onCheckSdp(SdpType type, RtcSession &sdp) = 0;
-    virtual void onSendSockData(const char *buf, size_t len, struct sockaddr_in *dst, bool flush = true) = 0;
+    virtual void onSendSockData(Buffer::Ptr buf, bool flush = true, RTC::TransportTuple *tuple = nullptr) = 0;
 
     virtual void onRtp(const char *buf, size_t len, uint64_t stamp_ms) = 0;
     virtual void onRtcp(const char *buf, size_t len) = 0;
@@ -149,7 +149,7 @@ protected:
     void sendRtcpPli(uint32_t ssrc);
 
 private:
-    void onSendSockData(const char *buf, size_t len, bool flush = true);
+    void sendSockData(const char *buf, size_t len, RTC::TransportTuple *tuple);
     void setRemoteDtlsFingerprint(const RtcSession &remote);
 
 protected:
@@ -157,7 +157,6 @@ protected:
     RtcSession::Ptr _answer_sdp;
 
 private:
-    uint8_t _srtp_buf[2000];
     string _identifier;
     EventPoller::Ptr _poller;
     std::shared_ptr<RTC::IceServer> _ice_server;
@@ -165,6 +164,8 @@ private:
     std::shared_ptr<RTC::SrtpSession> _srtp_session_send;
     std::shared_ptr<RTC::SrtpSession> _srtp_session_recv;
     Ticker _ticker;
+    //循环池
+    ResourcePool<BufferRaw> _packet_pool;
 };
 
 class RtpChannel;
@@ -232,7 +233,7 @@ public:
 protected:
     WebRtcTransportImp(const EventPoller::Ptr &poller);
     void onStartWebRTC() override;
-    void onSendSockData(const char *buf, size_t len, struct sockaddr_in *dst, bool flush = true) override;
+    void onSendSockData(Buffer::Ptr buf, bool flush = true, RTC::TransportTuple *tuple = nullptr) override;
     void onCheckSdp(SdpType type, RtcSession &sdp) override;
     void onRtcConfigure(RtcConfigure &configure) const override;
 
@@ -279,8 +280,6 @@ private:
     unordered_map<uint32_t/*ssrc*/, MediaTrack::Ptr> _ssrc_to_track;
     //根据接收rtp的pt获取相关信息
     unordered_map<uint8_t/*pt*/, std::unique_ptr<WrappedMediaTrack>> _pt_to_track;
-    //循环池
-    ResourcePool<BufferRaw> _packet_pool;
 };
 
 class WebRtcTransportManager {