diff --git a/src/Common/MediaSink.cpp b/src/Common/MediaSink.cpp
index 4d74e2c9..c757b57c 100644
--- a/src/Common/MediaSink.cpp
+++ b/src/Common/MediaSink.cpp
@@ -111,21 +111,16 @@ void MediaSink::inputFrame(const Frame::Ptr &frame) {
     }
 }
 
-bool MediaSink::isAllTrackReady() const {
-    return _allTrackReady;
-}
-
-Track::Ptr MediaSink::getTrack(TrackType type,bool trackReady) const {
+vector<Track::Ptr> MediaSink::getTracks(bool trackReady) const{
+    vector<Track::Ptr> ret;
     lock_guard<recursive_mutex> lck(_mtx);
     for (auto &pr : _track_map){
-        if(pr.second->getTrackType() == type){
-            if(!trackReady){
-                return pr.second;
-            }
-            return pr.second->ready() ? pr.second : nullptr;
+        if(trackReady && !pr.second->ready()){
+            continue;
         }
+        ret.emplace_back(pr.second);
     }
-    return nullptr;
+    return std::move(ret);
 }
 
 
diff --git a/src/Common/MediaSink.h b/src/Common/MediaSink.h
index 8798590d..d117aae5 100644
--- a/src/Common/MediaSink.h
+++ b/src/Common/MediaSink.h
@@ -38,11 +38,29 @@ using namespace toolkit;
 
 namespace mediakit{
 
+class MediaSinkInterface : public FrameWriterInterface {
+public:
+    MediaSinkInterface(){};
+    virtual ~MediaSinkInterface(){};
+
+    /**
+     * 添加track，内部会调用Track的clone方法
+     * 只会克隆sps pps这些信息 ，而不会克隆Delegate相关关系
+     * @param track
+     */
+    virtual void addTrack(const Track::Ptr & track) = 0;
+
+    /**
+     * 重置track
+     */
+    virtual void resetTracks() = 0;
+};
+
 /**
  * 该类的作用是等待Track ready()返回true也就是就绪后再通知派生类进行下一步的操作
  * 目的是输入Frame前由Track截取处理下，以便获取有效的信息（譬如sps pps aa_cfg）
  */
-class MediaSink : public FrameWriterInterface , public std::enable_shared_from_this<MediaSink>{
+class MediaSink : public MediaSinkInterface , public TrackSource , public std::enable_shared_from_this<MediaSink>{
 public:
     typedef std::shared_ptr<MediaSink> Ptr;
     MediaSink(){}
@@ -59,26 +77,18 @@ public:
      * 只会克隆sps pps这些信息 ，而不会克隆Delegate相关关系
      * @param track
      */
-    virtual void addTrack(const Track::Ptr & track);
+    void addTrack(const Track::Ptr & track) override;
 
     /**
      * 重置track
      */
-    virtual void resetTracks();
+    void resetTracks() override;
 
     /**
-     * 全部Track是否都准备好了
-     * @return
-     */
-    bool isAllTrackReady() const;
-
-    /**
-     * 获取特定类型的Track
-     * @param type track类型
+     * 获取所有Track
      * @param trackReady 是否获取已经准备好的Track
-     * @return
      */
-    Track::Ptr getTrack(TrackType type,bool trackReady = true) const;
+    vector<Track::Ptr> getTracks(bool trackReady = true) const override ;
 protected:
     /**
      * 某track已经准备好，其ready()状态返回true，
diff --git a/src/Common/MediaSource.h b/src/Common/MediaSource.h
index 5cfe597d..1e31b57b 100644
--- a/src/Common/MediaSource.h
+++ b/src/Common/MediaSource.h
@@ -92,7 +92,7 @@ public:
     string _param_strs;
 };
 
-class MediaSource: public enable_shared_from_this<MediaSource> {
+class MediaSource: public TrackSource, public enable_shared_from_this<MediaSource> {
 public:
     typedef std::shared_ptr<MediaSource> Ptr;
     typedef unordered_map<string, weak_ptr<MediaSource> > StreamMap;
@@ -191,14 +191,6 @@ public:
     }
 
     virtual int readerCount() = 0;
-
-    /**
-     * 获取track
-     * @return
-     */
-    virtual vector<Track::Ptr> getTracks(bool trackReady) const{
-        return vector<Track::Ptr>(0);
-    }
 protected:
     void regist() ;
     bool unregist() ;
diff --git a/src/Common/MultiMediaSourceMuxer.h b/src/Common/MultiMediaSourceMuxer.h
index b466ffec..4bf40c85 100644
--- a/src/Common/MultiMediaSourceMuxer.h
+++ b/src/Common/MultiMediaSourceMuxer.h
@@ -31,7 +31,7 @@
 #include "Rtmp/RtmpMediaSourceMuxer.h"
 #include "MediaFile/MediaRecorder.h"
 
-class MultiMediaSourceMuxer : public FrameWriterInterface{
+class MultiMediaSourceMuxer : public MediaSink{
 public:
     typedef std::shared_ptr<MultiMediaSourceMuxer> Ptr;
 
@@ -54,25 +54,10 @@ public:
     }
     virtual ~MultiMediaSourceMuxer(){}
 
-
-    /**
-     * 添加音视频媒体
-     * @param track 媒体描述
-     */
-    void addTrack(const Track::Ptr & track) {
-        if(_rtmp){
-            _rtmp->addTrack(track);
-        }
-        if(_rtsp){
-            _rtsp->addTrack(track);
-        }
-        _record->addTrack(track);
-    }
-
     /**
      * 重置音视频媒体
      */
-    void resetTracks() {
+    void resetTracks() override{
         if(_rtmp){
             _rtmp->resetTracks();
         }
@@ -82,20 +67,6 @@ public:
         _record->resetTracks();
     }
 
-    /**
-     * 写入帧数据然后打包rtmp
-     * @param frame 帧数据
-     */
-    void inputFrame(const Frame::Ptr &frame) override {
-        if(_rtmp) {
-            _rtmp->inputFrame(frame);
-        }
-        if(_rtsp) {
-            _rtsp->inputFrame(frame);
-        }
-        _record->inputFrame(frame);
-    }
-
     /**
      * 设置事件监听器
      * @param listener
@@ -122,6 +93,47 @@ public:
             _rtsp->setTimeStamp(stamp);
         }
     }
+
+protected:
+    /**
+     * 添加音视频媒体
+     * @param track 媒体描述
+     */
+    void onTrackReady(const Track::Ptr & track) override {
+        if(_rtmp){
+            _rtmp->addTrack(track);
+        }
+        if(_rtsp){
+            _rtsp->addTrack(track);
+        }
+        _record->addTrack(track);
+    }
+
+    /**
+     * 写入帧数据然后打包rtmp
+     * @param frame 帧数据
+     */
+    void onTrackFrame(const Frame::Ptr &frame) override {
+        if(_rtmp) {
+            _rtmp->inputFrame(frame);
+        }
+        if(_rtsp) {
+            _rtsp->inputFrame(frame);
+        }
+        _record->inputFrame(frame);
+    }
+
+    /**
+     * 所有Track都准备就绪，触发媒体注册事件
+     */
+    void onAllTrackReady() override{
+        if(_rtmp) {
+            _rtmp->onAllTrackReady();
+        }
+        if(_rtsp) {
+            _rtsp->onAllTrackReady();
+        }
+    }
 private:
     RtmpMediaSourceMuxer::Ptr _rtmp;
     RtspMediaSourceMuxer::Ptr _rtsp;
diff --git a/src/Extension/Frame.h b/src/Extension/Frame.h
index 79b5d02a..5e4234f7 100644
--- a/src/Extension/Frame.h
+++ b/src/Extension/Frame.h
@@ -50,7 +50,7 @@ typedef enum {
     TrackVideo = 0,
     TrackAudio,
     TrackTitle,
-    TrackMax = 0x7FFF
+    TrackMax = 3
 } TrackType;
 
 /**
diff --git a/src/Extension/Track.h b/src/Extension/Track.h
index 5209c74e..b4771027 100644
--- a/src/Extension/Track.h
+++ b/src/Extension/Track.h
@@ -131,6 +131,37 @@ public:
 };
 
 
+class TrackSource{
+public:
+    TrackSource(){}
+    virtual ~TrackSource(){}
+
+    /**
+	 * 获取全部的Track
+	 * @param trackReady 是否获取全部已经准备好的Track
+	 * @return
+	 */
+    virtual vector<Track::Ptr> getTracks(bool trackReady = true) const {
+        return vector<Track::Ptr>();
+    }
+
+    /**
+     * 获取特定Track
+     * @param type track类型
+     * @param trackReady 是否获取全部已经准备好的Track
+     * @return
+     */
+    Track::Ptr getTrack(TrackType type , bool trackReady = true) const {
+        auto tracks = getTracks(trackReady);
+        for(auto &track : tracks){
+            if(track->getTrackType() == type){
+                return track;
+            }
+        }
+        return nullptr;
+    }
+};
+
 }//namespace mediakit
 
 #endif //ZLMEDIAKIT_TRACK_H
diff --git a/src/MediaFile/MP4Muxer.cpp b/src/MediaFile/MP4Muxer.cpp
index c1b5bad3..70d6e38c 100644
--- a/src/MediaFile/MP4Muxer.cpp
+++ b/src/MediaFile/MP4Muxer.cpp
@@ -67,8 +67,12 @@ void MP4MuxerBase::init(int flags) {
 }
 
 ///////////////////////////////////
+void MP4Muxer::resetTracks() {
+    _codec_to_trackid.clear();
+    _started = false;
+}
 
-void MP4Muxer::onTrackFrame(const Frame::Ptr &frame) {
+void MP4Muxer::inputFrame(const Frame::Ptr &frame) {
     if(frame->configFrame()){
         //忽略配置帧
         return;
@@ -117,7 +121,7 @@ void MP4Muxer::onTrackFrame(const Frame::Ptr &frame) {
                        with_nalu_size);
 }
 
-void MP4Muxer::onTrackReady(const Track::Ptr &track) {
+void MP4Muxer::addTrack(const Track::Ptr &track) {
     switch (track->getCodecId()) {
         case CodecAAC: {
             auto aac_track = dynamic_pointer_cast<AACTrack>(track);
@@ -210,7 +214,12 @@ void MP4Muxer::onTrackReady(const Track::Ptr &track) {
     }
 }
 
-MP4MuxerFile::MP4MuxerFile(const char *file) {
+MP4MuxerFile::MP4MuxerFile(const char *file){
+    _file_name = file;
+    openFile(file);
+}
+
+void MP4MuxerFile::openFile(const char *file) {
     //创建文件
     auto fp = File::createfile_file(file,"wb+");
     if(!fp){
@@ -237,7 +246,6 @@ MP4MuxerFile::MP4MuxerFile(const char *file) {
     });
 
     GET_CONFIG(bool, mp4FastStart, Record::kFastStart);
-
     init(mp4FastStart ? MOV_FLAG_FASTSTART : 0);
 }
 
@@ -264,6 +272,12 @@ uint64_t MP4MuxerFile::onTell() {
     return ftell64(_file.get());
 }
 
+
+void MP4MuxerFile::resetTracks(){
+    MP4Muxer::resetTracks();
+    openFile(_file_name.data());
+}
+
 }//namespace mediakit
 
 #endif//#ifdef ENABLE_MP4RECORD
diff --git a/src/MediaFile/MP4Muxer.h b/src/MediaFile/MP4Muxer.h
index de15d4cc..1532d87e 100644
--- a/src/MediaFile/MP4Muxer.h
+++ b/src/MediaFile/MP4Muxer.h
@@ -57,23 +57,24 @@ protected:
     std::shared_ptr<mov_writer_t> _mov_writter;
 };
 
-class MP4Muxer : public MediaSink , public MP4MuxerBase{
+class MP4Muxer : public MediaSinkInterface , public MP4MuxerBase{
 public:
     MP4Muxer() = default;
     ~MP4Muxer() override = default;
-protected:
-    /**
-     * 某track已经准备好，其ready()状态返回true，
-     * 此时代表可以获取其例如sps pps等相关信息了
-     * @param track
-     */
-    void onTrackReady(const Track::Ptr & track) override;
 
     /**
-     * 某Track输出frame，在onAllTrackReady触发后才会调用此方法
-     * @param frame
+     * 添加已经ready状态的track
      */
-    void onTrackFrame(const Frame::Ptr &frame) override;
+    void addTrack(const Track::Ptr & track) override;
+    /**
+     * 输入帧
+     */
+    void inputFrame(const Frame::Ptr &frame) override;
+
+    /**
+     * 重置所有track
+     */
+    void resetTracks() override ;
 private:
     struct track_info{
         int track_id = -1;
@@ -89,13 +90,16 @@ public:
     typedef std::shared_ptr<MP4MuxerFile> Ptr;
     MP4MuxerFile(const char *file);
     ~MP4MuxerFile();
+    void resetTracks() override ;
 protected:
     int onRead(void* data, uint64_t bytes) override;
     int onWrite(const void* data, uint64_t bytes) override;
     int onSeek( uint64_t offset) override;
     uint64_t onTell() override ;
+    void openFile(const char *file);
 private:
     std::shared_ptr<FILE> _file;
+    string _file_name;
 };
 
 }//namespace mediakit
diff --git a/src/MediaFile/MP4Recorder.cpp b/src/MediaFile/MP4Recorder.cpp
index 0f36561c..092258b4 100644
--- a/src/MediaFile/MP4Recorder.cpp
+++ b/src/MediaFile/MP4Recorder.cpp
@@ -128,7 +128,7 @@ void MP4Recorder::closeFile() {
 	}
 }
 
-void MP4Recorder::onTrackFrame(const Frame::Ptr &frame) {
+void MP4Recorder::inputFrame(const Frame::Ptr &frame) {
 	GET_CONFIG(uint32_t,recordSec,Record::kFileSecond);
 	if(!_muxer || ((_createFileTicker.elapsedTime() > recordSec * 1000) &&
 			      (!_haveVideo || (_haveVideo && frame->keyFrame()))) ){
@@ -145,7 +145,7 @@ void MP4Recorder::onTrackFrame(const Frame::Ptr &frame) {
 	}
 }
 
-void MP4Recorder::onTrackReady(const Track::Ptr & track){
+void MP4Recorder::addTrack(const Track::Ptr & track){
 	//保存所有的track，为创建MP4MuxerFile做准备
 	_tracks.emplace_back(track);
 	if(track->getTrackType() == TrackVideo){
@@ -158,7 +158,6 @@ void MP4Recorder::resetTracks() {
 	_tracks.clear();
 	_haveVideo = false;
 	_createFileTicker.resetTime();
-	MediaSink::resetTracks();
 }
 
 } /* namespace mediakit */
diff --git a/src/MediaFile/MP4Recorder.h b/src/MediaFile/MP4Recorder.h
index 0c619461..2d9e84e9 100644
--- a/src/MediaFile/MP4Recorder.h
+++ b/src/MediaFile/MP4Recorder.h
@@ -55,7 +55,7 @@ public:
 	string strStreamId;//流ID
 	string strVhost;//vhost
 };
-class MP4Recorder : public MediaSink{
+class MP4Recorder : public MediaSinkInterface{
 public:
 	typedef std::shared_ptr<MP4Recorder> Ptr;
 	MP4Recorder(const string &strPath,
@@ -68,19 +68,16 @@ public:
 	 * 重置所有Track
 	 */
 	void resetTracks() override;
-private:
+
 	/**
-     * 某Track输出frame，在onAllTrackReady触发后才会调用此方法
-     * @param frame
+     * 输入frame
      */
-	void onTrackFrame(const Frame::Ptr &frame) override ;
+	void inputFrame(const Frame::Ptr &frame) override;
 
     /**
-     * 某track已经准备好，其ready()状态返回true，
-     * 此时代表可以获取其例如sps pps等相关信息了
-     * @param track
+     * 添加ready状态的track
      */
-    void onTrackReady(const Track::Ptr & track) override;
+    void addTrack(const Track::Ptr & track) override;
 private:
     void createFile();
     void closeFile();
diff --git a/src/MediaFile/MediaRecorder.h b/src/MediaFile/MediaRecorder.h
index c36f8613..fbfba1e7 100644
--- a/src/MediaFile/MediaRecorder.h
+++ b/src/MediaFile/MediaRecorder.h
@@ -37,7 +37,7 @@ using namespace toolkit;
 
 namespace mediakit {
 
-class MediaRecorder : public MediaSink{
+class MediaRecorder : public MediaSinkInterface{
 public:
 	typedef std::shared_ptr<MediaRecorder> Ptr;
 	MediaRecorder(const string &strVhost,
diff --git a/src/MediaFile/TsMuxer.h b/src/MediaFile/TsMuxer.h
index a876c8c3..3bd4509c 100644
--- a/src/MediaFile/TsMuxer.h
+++ b/src/MediaFile/TsMuxer.h
@@ -38,7 +38,7 @@ using namespace toolkit;
 
 namespace mediakit {
 
-class TsMuxer : public MediaSink {
+class TsMuxer : public MediaSinkInterface {
 public:
     TsMuxer();
     virtual ~TsMuxer();
diff --git a/src/Player/PlayerBase.h b/src/Player/PlayerBase.h
index 84fd6795..54aa0f3c 100644
--- a/src/Player/PlayerBase.h
+++ b/src/Player/PlayerBase.h
@@ -41,7 +41,7 @@ using namespace toolkit;
 
 namespace mediakit {
 
-class DemuxerBase {
+class DemuxerBase : public TrackSource{
 public:
 	typedef std::shared_ptr<DemuxerBase> Ptr;
 
@@ -57,29 +57,6 @@ public:
 	 * @return
 	 */
 	virtual bool isInited(int analysisMs) { return true; }
-
-	/**
-	 * 获取全部的Track
-	 * @param trackReady 是否获取全部已经准备好的Track
-	 * @return
-	 */
-	virtual vector<Track::Ptr> getTracks(bool trackReady = true) const { return vector<Track::Ptr>();}
-
-	/**
-	 * 获取特定Track
-	 * @param type track类型
-	 * @param trackReady 是否获取全部已经准备好的Track
-	 * @return
-	 */
-	virtual Track::Ptr getTrack(TrackType type , bool trackReady = true) const {
-		auto tracks = getTracks(trackReady);
-		for(auto &track : tracks){
-			if(track->getTrackType() == type){
-				return track;
-			}
-		}
-		return nullptr;
-	}
 };
 
 
@@ -274,14 +251,14 @@ public:
 	bool isInited(int analysisMs) override;
 
 	/**
-	 * 获取所有可用Track，请在isInited()返回true时调用
-	 * @return
+	 * 获取所有Track
+	 * @return 所有Track
 	 */
 	vector<Track::Ptr> getTracks(bool trackReady = true) const override;
 
 	/**
 	 * 获取节目总时长
-	 * @return
+	 * @return 节目总时长,单位秒
 	 */
 	float getDuration() const override;
 protected:
diff --git a/src/Rtmp/RtmpMediaSourceMuxer.h b/src/Rtmp/RtmpMediaSourceMuxer.h
index e3d9561d..2f8e81cc 100644
--- a/src/Rtmp/RtmpMediaSourceMuxer.h
+++ b/src/Rtmp/RtmpMediaSourceMuxer.h
@@ -48,11 +48,12 @@ public:
     void setListener(const std::weak_ptr<MediaSourceEvent> &listener){
         _mediaSouce->setListener(listener);
     }
+
     int readerCount() const{
         return _mediaSouce->readerCount();
     }
-private:
-    void onAllTrackReady() override {
+
+    void onAllTrackReady(){
         _mediaSouce->onGetMetaData(getMetadata());
     }
 private:
diff --git a/src/Rtmp/RtmpMuxer.cpp b/src/Rtmp/RtmpMuxer.cpp
index 6ed7e324..e252d410 100644
--- a/src/Rtmp/RtmpMuxer.cpp
+++ b/src/Rtmp/RtmpMuxer.cpp
@@ -38,13 +38,7 @@ RtmpMuxer::RtmpMuxer(const TitleMeta::Ptr &title) {
     _rtmpRing = std::make_shared<RtmpRingInterface::RingType>();
 }
 
-void RtmpMuxer::onTrackReady(const Track::Ptr &track) {
-    //生成rtmp编码器
-    //克隆该Track，防止循环引用
-    auto encoder = Factory::getRtmpCodecByTrack(track->clone());
-    if (!encoder) {
-        return;
-    }
+void RtmpMuxer::addTrack(const Track::Ptr &track) {
     //根据track生产metadata
     Metadata::Ptr metadata;
     switch (track->getTrackType()){
@@ -57,26 +51,34 @@ void RtmpMuxer::onTrackReady(const Track::Ptr &track) {
         }
             break;
         default:
-            return;;
+            return;
 
     }
+
+    auto &encoder = _encoder[track->getTrackType()];
+    //生成rtmp编码器,克隆该Track，防止循环引用
+    encoder = Factory::getRtmpCodecByTrack(track->clone());
+    if (!encoder) {
+        return;
+    }
+
+    //设置rtmp输出环形缓存
+    encoder->setRtmpRing(_rtmpRing);
+
     //添加其metadata
     metadata->getMetadata().object_for_each([&](const std::string &key, const AMFValue &value){
         _metadata.set(key,value);
     });
-    //设置Track的代理，这样输入frame至Track时，最终数据将输出到RtmpEncoder中
-    track->addDelegate(encoder);
-    //Rtmp编码器共用同一个环形缓存
-    encoder->setRtmpRing(_rtmpRing);
 }
 
+void RtmpMuxer::inputFrame(const Frame::Ptr &frame) {
+    auto &encoder = _encoder[frame->getTrackType()];
+    if(encoder){
+        encoder->inputFrame(frame);
+    }
+}
 
 const AMFValue &RtmpMuxer::getMetadata() const {
-    if(!isAllTrackReady()){
-        //尚未就绪
-        static AMFValue s_amf;
-        return s_amf;
-    }
     return _metadata;
 }
 
@@ -84,4 +86,12 @@ RtmpRingInterface::RingType::Ptr RtmpMuxer::getRtmpRing() const {
     return _rtmpRing;
 }
 
+void RtmpMuxer::resetTracks() {
+    _metadata.clear();
+    for(auto &encoder : _encoder){
+        encoder = nullptr;
+    }
+}
+
+
 }/* namespace mediakit */
\ No newline at end of file
diff --git a/src/Rtmp/RtmpMuxer.h b/src/Rtmp/RtmpMuxer.h
index 87552eb5..3c4743b9 100644
--- a/src/Rtmp/RtmpMuxer.h
+++ b/src/Rtmp/RtmpMuxer.h
@@ -34,7 +34,7 @@
 
 namespace mediakit{
 
-class RtmpMuxer : public MediaSink{
+class RtmpMuxer : public MediaSinkInterface{
 public:
     typedef std::shared_ptr<RtmpMuxer> Ptr;
 
@@ -55,16 +55,26 @@ public:
      * @return
      */
     RtmpRingInterface::RingType::Ptr getRtmpRing() const;
-protected:
+
     /**
-   * 某track已经准备好，其ready()状态返回true，
-   * 此时代表可以获取其例如sps pps等相关信息了
-   * @param track
-   */
-    void onTrackReady(const Track::Ptr & track) override ;
+     * 添加ready状态的track
+     */
+    void addTrack(const Track::Ptr & track) override;
+
+    /**
+     * 写入帧数据
+     * @param frame 帧
+     */
+    void inputFrame(const Frame::Ptr &frame) override;
+
+    /**
+     * 重置所有track
+     */
+    void resetTracks() override ;
 private:
     RtmpRingInterface::RingType::Ptr _rtmpRing;
     AMFValue _metadata;
+    RtmpCodec::Ptr _encoder[TrackMax];
 };
 
 
diff --git a/src/Rtsp/RtspMediaSourceMuxer.h b/src/Rtsp/RtspMediaSourceMuxer.h
index f4637942..9c496bd6 100644
--- a/src/Rtsp/RtspMediaSourceMuxer.h
+++ b/src/Rtsp/RtspMediaSourceMuxer.h
@@ -48,14 +48,16 @@ public:
     void setListener(const std::weak_ptr<MediaSourceEvent> &listener){
         _mediaSouce->setListener(listener);
     }
+
     int readerCount() const{
         return _mediaSouce->readerCount();
     }
+
     void setTimeStamp(uint32_t stamp){
         _mediaSouce->setTimeStamp(stamp);
     }
-private:
-    void onAllTrackReady() override {
+
+    void onAllTrackReady(){
         _mediaSouce->onGetSDP(getSdp());
     }
 private:
diff --git a/src/Rtsp/RtspMuxer.cpp b/src/Rtsp/RtspMuxer.cpp
index 9f4da62a..1e482add 100644
--- a/src/Rtsp/RtspMuxer.cpp
+++ b/src/Rtsp/RtspMuxer.cpp
@@ -38,29 +38,34 @@ RtspMuxer::RtspMuxer(const TitleSdp::Ptr &title){
     _rtpRing = std::make_shared<RtpRingInterface::RingType>();
 }
 
-void RtspMuxer::onTrackReady(const Track::Ptr &track) {
+void RtspMuxer::addTrack(const Track::Ptr &track) {
     //根据track生成sdp
     Sdp::Ptr sdp = track->getSdp();
     if (!sdp) {
         return;
     }
-    auto encoder = Factory::getRtpEncoderBySdp(sdp);
+
+    auto &encoder = _encoder[track->getTrackType()];
+    encoder = Factory::getRtpEncoderBySdp(sdp);
     if (!encoder) {
         return;
     }
+
+    //设置rtp输出环形缓存
+    encoder->setRtpRing(_rtpRing);
+
     //添加其sdp
     _sdp.append(sdp->getSdp());
-    //设置Track的代理，这样输入frame至Track时，最终数据将输出到RtpEncoder中
-    track->addDelegate(encoder);
-    //rtp编码器共用同一个环形缓存
-    encoder->setRtpRing(_rtpRing);
+}
+
+void RtspMuxer::inputFrame(const Frame::Ptr &frame) {
+    auto &encoder = _encoder[frame->getTrackType()];
+    if(encoder){
+        encoder->inputFrame(frame);
+    }
 }
 
 string RtspMuxer::getSdp() {
-    if(!isAllTrackReady()){
-        //尚未就绪
-        return "";
-    }
     return _sdp;
 }
 
@@ -68,5 +73,12 @@ RtpRingInterface::RingType::Ptr RtspMuxer::getRtpRing() const {
     return _rtpRing;
 }
 
+void RtspMuxer::resetTracks() {
+    _sdp.clear();
+    for(auto &encoder : _encoder){
+        encoder = nullptr;
+    }
+}
+
 
 } /* namespace mediakit */
\ No newline at end of file
diff --git a/src/Rtsp/RtspMuxer.h b/src/Rtsp/RtspMuxer.h
index 3d99537b..2d9a8736 100644
--- a/src/Rtsp/RtspMuxer.h
+++ b/src/Rtsp/RtspMuxer.h
@@ -35,7 +35,7 @@ namespace mediakit{
 /**
 * rtsp生成器
 */
-class RtspMuxer : public MediaSink{
+class RtspMuxer : public MediaSinkInterface{
 public:
     typedef std::shared_ptr<RtspMuxer> Ptr;
 
@@ -57,16 +57,26 @@ public:
      * @return
      */
     RtpRingInterface::RingType::Ptr getRtpRing() const;
-protected:
+
     /**
-    * 某track已经准备好，其ready()状态返回true，
-    * 此时代表可以获取其例如sps pps等相关信息了
-    * @param track
-    */
-    void onTrackReady(const Track::Ptr & track) override ;
+     * 添加ready状态的track
+     */
+    void addTrack(const Track::Ptr & track) override;
+
+    /**
+     * 写入帧数据
+     * @param frame 帧
+     */
+    void inputFrame(const Frame::Ptr &frame) override;
+
+    /**
+     * 重置所有track
+     */
+    void resetTracks() override ;
 private:
-    RtpRingInterface::RingType::Ptr _rtpRing;
     string _sdp;
+    RtpCodec::Ptr _encoder[TrackMax];
+    RtpRingInterface::RingType::Ptr _rtpRing;
 };