diff --git a/api/source/mk_events_objects.cpp b/api/source/mk_events_objects.cpp
index 50bcbff4..8e120c6f 100644
--- a/api/source/mk_events_objects.cpp
+++ b/api/source/mk_events_objects.cpp
@@ -214,7 +214,7 @@ API_EXPORT int API_CALL mk_media_source_seek_to(const mk_media_source ctx,uint32
 API_EXPORT void API_CALL mk_media_source_start_send_rtp(const mk_media_source ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_source_send_rtp_result cb, void *user_data){
     assert(ctx && dst_url && ssrc);
     MediaSource *src = (MediaSource *)ctx;
-    src->startSendRtp(dst_url, dst_port, ssrc, is_udp, [cb, user_data](const SockException &ex){
+    src->startSendRtp(dst_url, dst_port, ssrc, is_udp, 0, [cb, user_data](const SockException &ex){
         if (cb) {
             cb(user_data, ex.getErrCode(), ex.what());
         }
@@ -224,7 +224,7 @@ API_EXPORT void API_CALL mk_media_source_start_send_rtp(const mk_media_source ct
 API_EXPORT int API_CALL mk_media_source_stop_send_rtp(const mk_media_source ctx){
     assert(ctx);
     MediaSource *src = (MediaSource *) ctx;
-    return src->stopSendRtp();
+    return src->stopSendRtp("");
 }
 
 API_EXPORT void API_CALL mk_media_source_find(const char *schema,
diff --git a/api/source/mk_media.cpp b/api/source/mk_media.cpp
index 53fb024e..d2d4dcc3 100755
--- a/api/source/mk_media.cpp
+++ b/api/source/mk_media.cpp
@@ -193,7 +193,7 @@ API_EXPORT void API_CALL mk_media_start_send_rtp(mk_media ctx, const char *dst_u
     assert(ctx && dst_url && ssrc);
     MediaHelper::Ptr* obj = (MediaHelper::Ptr*) ctx;
     //sender参数无用
-    (*obj)->getChannel()->startSendRtp(*(MediaSource *) 1, dst_url, dst_port, ssrc, is_udp, [cb, user_data](const SockException &ex){
+    (*obj)->getChannel()->startSendRtp(*(MediaSource *) 1, dst_url, dst_port, ssrc, is_udp, 0, [cb, user_data](const SockException &ex){
         if (cb) {
             cb(user_data, ex.getErrCode(), ex.what());
         }
@@ -204,5 +204,5 @@ API_EXPORT int API_CALL mk_media_stop_send_rtp(mk_media ctx){
     assert(ctx);
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *) ctx;
     //sender参数无用
-    return (*obj)->getChannel()->stopSendRtp(*(MediaSource *) 1);
+    return (*obj)->getChannel()->stopSendRtp(*(MediaSource *) 1, "");
 }
\ No newline at end of file
diff --git a/api/source/mk_thread.cpp b/api/source/mk_thread.cpp
index 08778287..fca1cec6 100644
--- a/api/source/mk_thread.cpp
+++ b/api/source/mk_thread.cpp
@@ -77,7 +77,7 @@ public:
         _task->cancel();
     }
 
-    void start(int ms ,EventPoller &poller){
+    void start(uint64_t ms ,EventPoller &poller){
         weak_ptr<TimerForC> weak_self = shared_from_this();
         _task = poller.doDelayTask(ms, [weak_self]() {
             auto strong_self = weak_self.lock();
diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index 768b2e64..02a4030f 100644
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -850,7 +850,8 @@ void installWebApi() {
             throw ApiRetException("该媒体流不存在", API::OtherFailed);
         }
 
-        src->startSendRtp(allArgs["dst_url"], allArgs["dst_port"], allArgs["ssrc"], allArgs["is_udp"], [val, headerOut, invoker](const SockException &ex){
+        //src_port为空时，则随机本地端口
+        src->startSendRtp(allArgs["dst_url"], allArgs["dst_port"], allArgs["ssrc"], allArgs["is_udp"], allArgs["src_port"], [val, headerOut, invoker](const SockException &ex){
             if (ex) {
                 const_cast<Value &>(val)["code"] = API::OtherFailed;
                 const_cast<Value &>(val)["msg"] = ex.what();
@@ -868,7 +869,8 @@ void installWebApi() {
             throw ApiRetException("该媒体流不存在", API::OtherFailed);
         }
 
-        if (!src->stopSendRtp()) {
+        //ssrc如果为空，关闭全部
+        if (!src->stopSendRtp(allArgs["ssrc"])) {
             throw ApiRetException("尚未开始推流,停止失败", API::OtherFailed);
         }
     });
diff --git a/src/Common/MediaSource.cpp b/src/Common/MediaSource.cpp
index afe42ff7..966620f7 100644
--- a/src/Common/MediaSource.cpp
+++ b/src/Common/MediaSource.cpp
@@ -183,21 +183,21 @@ bool MediaSource::isRecording(Recorder::type type){
     return listener->isRecording(*this, type);
 }
 
-void MediaSource::startSendRtp(const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb){
+void MediaSource::startSendRtp(const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb){
     auto listener = _listener.lock();
     if (!listener) {
         cb(SockException(Err_other, "尚未设置事件监听器"));
         return;
     }
-    return listener->startSendRtp(*this, dst_url, dst_port, ssrc, is_udp, cb);
+    return listener->startSendRtp(*this, dst_url, dst_port, ssrc, is_udp, src_port, cb);
 }
 
-bool MediaSource::stopSendRtp() {
+bool MediaSource::stopSendRtp(const string &ssrc) {
     auto listener = _listener.lock();
     if (!listener) {
         return false;
     }
-    return listener->stopSendRtp(*this);
+    return listener->stopSendRtp(*this, ssrc);
 }
 
 void MediaSource::for_each_media(const function<void(const MediaSource::Ptr &src)> &cb) {
@@ -642,19 +642,19 @@ vector<Track::Ptr> MediaSourceEventInterceptor::getTracks(MediaSource &sender, b
     return listener->getTracks(sender, trackReady);
 }
 
-void MediaSourceEventInterceptor::startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb){
+void MediaSourceEventInterceptor::startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb){
     auto listener = _listener.lock();
     if (listener) {
-        listener->startSendRtp(sender, dst_url, dst_port, ssrc, is_udp, cb);
+        listener->startSendRtp(sender, dst_url, dst_port, ssrc, is_udp, src_port, cb);
     } else {
-        MediaSourceEvent::startSendRtp(sender, dst_url, dst_port, ssrc, is_udp, cb);
+        MediaSourceEvent::startSendRtp(sender, dst_url, dst_port, ssrc, is_udp, src_port, cb);
     }
 }
 
-bool MediaSourceEventInterceptor::stopSendRtp(MediaSource &sender){
+bool MediaSourceEventInterceptor::stopSendRtp(MediaSource &sender, const string &ssrc){
     auto listener = _listener.lock();
     if (listener) {
-        return listener->stopSendRtp(sender);
+        return listener->stopSendRtp(sender, ssrc);
     }
     return false;
 }
diff --git a/src/Common/MediaSource.h b/src/Common/MediaSource.h
index 965e1e57..0095ee22 100644
--- a/src/Common/MediaSource.h
+++ b/src/Common/MediaSource.h
@@ -83,9 +83,9 @@ public:
     // 获取所有track相关信息
     virtual vector<Track::Ptr> getTracks(MediaSource &sender, bool trackReady = true) const { return vector<Track::Ptr>(); };
     // 开始发送ps-rtp
-    virtual void startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb) { cb(SockException(Err_other, "not implemented"));};
+    virtual void startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb) { cb(SockException(Err_other, "not implemented"));};
     // 停止发送ps-rtp
-    virtual bool stopSendRtp(MediaSource &sender) {return false; }
+    virtual bool stopSendRtp(MediaSource &sender, const string &ssrc) {return false; }
 
 private:
     Timer::Ptr _async_close_timer;
@@ -112,8 +112,8 @@ public:
     bool setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path) override;
     bool isRecording(MediaSource &sender, Recorder::type type) override;
     vector<Track::Ptr> getTracks(MediaSource &sender, bool trackReady = true) const override;
-    void startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb) override;
-    bool stopSendRtp(MediaSource &sender) override;
+    void startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb) override;
+    bool stopSendRtp(MediaSource &sender, const string &ssrc) override;
 
 private:
     std::weak_ptr<MediaSourceEvent> _listener;
@@ -256,9 +256,9 @@ public:
     // 获取录制状态
     bool isRecording(Recorder::type type);
     // 开始发送ps-rtp
-    void startSendRtp(const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb);
+    void startSendRtp(const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb);
     // 停止发送ps-rtp
-    bool stopSendRtp();
+    bool stopSendRtp(const string &ssrc);
 
     ////////////////static方法，查找或生成MediaSource////////////////
 
diff --git a/src/Common/MultiMediaSourceMuxer.cpp b/src/Common/MultiMediaSourceMuxer.cpp
index f3d44352..e9db150f 100644
--- a/src/Common/MultiMediaSourceMuxer.cpp
+++ b/src/Common/MultiMediaSourceMuxer.cpp
@@ -329,11 +329,11 @@ bool MultiMediaSourceMuxer::isRecording(MediaSource &sender, Recorder::type type
     return _muxer->isRecording(sender,type);
 }
 
-void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb){
+void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb){
 #if defined(ENABLE_RTPPROXY)
     RtpSender::Ptr rtp_sender = std::make_shared<RtpSender>(atoi(ssrc.data()));
     weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
-    rtp_sender->startSend(dst_url, dst_port, is_udp, [weak_self, rtp_sender, cb](const SockException &ex) {
+    rtp_sender->startSend(dst_url, dst_port, is_udp, src_port, [weak_self, rtp_sender, cb, ssrc](const SockException &ex) {
         cb(ex);
         auto strong_self = weak_self.lock();
         if (!strong_self || ex) {
@@ -343,21 +343,29 @@ void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const string &dst_
             rtp_sender->addTrack(track);
         }
         rtp_sender->addTrackCompleted();
-        strong_self->_rtp_sender = rtp_sender;
+        lock_guard<mutex> lck(strong_self->_rtp_sender_mtx);
+        strong_self->_rtp_sender[ssrc] = rtp_sender;
     });
 #else
     cb(SockException(Err_other, "该功能未启用，编译时请打开ENABLE_RTPPROXY宏"));
 #endif//ENABLE_RTPPROXY
 }
 
-bool MultiMediaSourceMuxer::stopSendRtp(MediaSource &sender){
+bool MultiMediaSourceMuxer::stopSendRtp(MediaSource &sender, const string& ssrc){
 #if defined(ENABLE_RTPPROXY)
-    if (_rtp_sender) {
-        _rtp_sender = nullptr;
-        return true;
+    if (ssrc.empty()) {
+        //关闭全部
+        lock_guard<mutex> lck(_rtp_sender_mtx);
+        auto size = _rtp_sender.size();
+        _rtp_sender.clear();
+        return size;
     }
-#endif//ENABLE_RTPPROXY
+    //关闭特定的
+    lock_guard<mutex> lck(_rtp_sender_mtx);
+    return _rtp_sender.erase(ssrc);
+#else
     return false;
+#endif//ENABLE_RTPPROXY
 }
 
 void MultiMediaSourceMuxer::addTrack(const Track::Ptr &track) {
@@ -442,9 +450,9 @@ void MultiMediaSourceMuxer::inputFrame(const Frame::Ptr &frame_in) {
     _muxer->inputFrame(frame);
 
 #if defined(ENABLE_RTPPROXY)
-    auto rtp_sender = _rtp_sender;
-    if (rtp_sender) {
-        rtp_sender->inputFrame(frame);
+    lock_guard<mutex> lck(_rtp_sender_mtx);
+    for (auto &pr : _rtp_sender) {
+        pr.second->inputFrame(frame);
     }
 #endif //ENABLE_RTPPROXY
 
@@ -456,7 +464,7 @@ bool MultiMediaSourceMuxer::isEnabled(){
         //无人观看时，每次检查是否真的无人观看
         //有人观看时，则延迟一定时间检查一遍是否无人观看了(节省性能)
 #if defined(ENABLE_RTPPROXY)
-        _is_enable = (_muxer->isEnabled() || _rtp_sender);
+        _is_enable = (_muxer->isEnabled() || _rtp_sender.size());
 #else
         _is_enable = _muxer->isEnabled();
 #endif //ENABLE_RTPPROXY
diff --git a/src/Common/MultiMediaSourceMuxer.h b/src/Common/MultiMediaSourceMuxer.h
index 36729447..2ffe8163 100644
--- a/src/Common/MultiMediaSourceMuxer.h
+++ b/src/Common/MultiMediaSourceMuxer.h
@@ -142,13 +142,13 @@ public:
      * @param is_udp 是否为udp
      * @param cb 启动成功或失败回调
      */
-    void startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, const function<void(const SockException &ex)> &cb) override;
+    void startSendRtp(MediaSource &sender, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb) override;
 
     /**
      * 停止ps-rtp发送
      * @return 是否成功
      */
-    bool stopSendRtp(MediaSource &sender) override;
+    bool stopSendRtp(MediaSource &sender, const string &ssrc) override;
 
     /////////////////////////////////MediaSinkInterface override/////////////////////////////////
 
@@ -189,7 +189,8 @@ private:
     MultiMuxerPrivate::Ptr _muxer;
     std::weak_ptr<MultiMuxerPrivate::Listener> _track_listener;
 #if defined(ENABLE_RTPPROXY)
-    RtpSender::Ptr _rtp_sender;
+    mutex _rtp_sender_mtx;
+	unordered_map<string, RtpSender::Ptr> _rtp_sender;
 #endif //ENABLE_RTPPROXY
 };
 
diff --git a/src/Rtp/RtpSender.cpp b/src/Rtp/RtpSender.cpp
index 8fdb531a..50710a1e 100644
--- a/src/Rtp/RtpSender.cpp
+++ b/src/Rtp/RtpSender.cpp
@@ -26,14 +26,15 @@ RtpSender::RtpSender(uint32_t ssrc, uint8_t payload_type) {
 RtpSender::~RtpSender() {
 }
 
-void RtpSender::startSend(const string &dst_url, uint16_t dst_port, bool is_udp, const function<void(const SockException &ex)> &cb){
+void RtpSender::startSend(const string &dst_url, uint16_t dst_port, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb){
     _is_udp = is_udp;
     _socket = Socket::createSocket(_poller, false);
     _dst_url = dst_url;
     _dst_port = dst_port;
+	_src_port = src_port;
     weak_ptr<RtpSender> weak_self = shared_from_this();
     if (is_udp) {
-        _socket->bindUdpSock(0);
+        _socket->bindUdpSock(src_port);
         auto poller = _poller;
         WorkThreadPool::Instance().getPoller()->async([cb, dst_url, dst_port, weak_self, poller]() {
             struct sockaddr addr;
@@ -65,7 +66,7 @@ void RtpSender::startSend(const string &dst_url, uint16_t dst_port, bool is_udp,
                 //tcp连接成功
                 strong_self->onConnect();
             }
-        });
+        }, 5.0F, "0.0.0.0", src_port);
     }
 }
 
@@ -149,7 +150,7 @@ void RtpSender::onErr(const SockException &ex, bool is_connect) {
         if (!strong_self) {
             return false;
         }
-        strong_self->startSend(strong_self->_dst_url, strong_self->_dst_port, strong_self->_is_udp, [weak_self](const SockException &ex){
+        strong_self->startSend(strong_self->_dst_url, strong_self->_dst_port, strong_self->_is_udp, strong_self->_src_port, [weak_self](const SockException &ex){
             auto strong_self = weak_self.lock();
             if (strong_self && ex) {
                 //连接失败且本对象未销毁，那么重试连接
diff --git a/src/Rtp/RtpSender.h b/src/Rtp/RtpSender.h
index 86a58894..840792f7 100644
--- a/src/Rtp/RtpSender.h
+++ b/src/Rtp/RtpSender.h
@@ -37,7 +37,7 @@ public:
      * @param is_udp 是否采用udp方式发送rtp
      * @param cb 连接目标端口是否成功的回调
      */
-    void startSend(const string &dst_url, uint16_t dst_port, bool is_udp, const function<void(const SockException &ex)> &cb);
+    void startSend(const string &dst_url, uint16_t dst_port, bool is_udp, uint16_t src_port, const function<void(const SockException &ex)> &cb);
 
     /**
      * 输入帧数据
@@ -74,6 +74,7 @@ private:
     bool _is_connect = false;
     string _dst_url;
     uint16_t _dst_port;
+	uint16_t _src_port;
     Socket::Ptr _socket;
     EventPoller::Ptr _poller;
     Timer::Ptr _connect_timer;