diff --git a/server/FFmpegSource.cpp b/server/FFmpegSource.cpp
index 848a9f01..cea3cdc2 100644
--- a/server/FFmpegSource.cpp
+++ b/server/FFmpegSource.cpp
@@ -249,8 +249,8 @@ void FFmpegSource::onGetMediaSource(const MediaSource::Ptr &src) {
     auto listener = src->getListener();
     if (listener.lock().get() != this) {
         //防止多次进入onGetMediaSource函数导致无效递归调用的bug
-        src->setListener(shared_from_this());
         _listener = listener;
+        src->setListener(shared_from_this());
     } else {
         WarnL << "多次触发onGetMediaSource事件:"
               << src->getSchema() << "/"
diff --git a/src/Common/MediaSource.cpp b/src/Common/MediaSource.cpp
index 05da87d0..84cc2fac 100644
--- a/src/Common/MediaSource.cpp
+++ b/src/Common/MediaSource.cpp
@@ -8,7 +8,6 @@
  * may be found in the AUTHORS file in the root of the source tree.
  */
 
-#include <math.h>
 #include "MediaSource.h"
 #include "Record/MP4Reader.h"
 #include "Util/util.h"
@@ -316,36 +315,6 @@ MediaSource::Ptr MediaSource::find(const string &vhost, const string &app, const
     return MediaSource::find(HLS_SCHEMA, vhost, app, stream_id);
 }
 
-static string getTrackInfoStr(const TrackSource *track_src){
-    _StrPrinter codec_info;
-    auto tracks = track_src->getTracks(true);
-    for (auto &track : tracks) {
-        auto codec_type = track->getTrackType();
-        codec_info << track->getCodecName();
-        switch (codec_type) {
-            case TrackAudio : {
-                auto audio_track = dynamic_pointer_cast<AudioTrack>(track);
-                codec_info << "["
-                           << audio_track->getAudioSampleRate() << "/"
-                           << audio_track->getAudioChannel() << "/"
-                           << audio_track->getAudioSampleBit() << "] ";
-                break;
-            }
-            case TrackVideo : {
-                auto video_track = dynamic_pointer_cast<VideoTrack>(track);
-                codec_info << "["
-                           << video_track->getVideoWidth() << "/"
-                           << video_track->getVideoHeight() << "/"
-                           << round(video_track->getVideoFps()) << "] ";
-                break;
-            }
-            default:
-                break;
-        }
-    }
-    return codec_info;
-}
-
 void MediaSource::emitEvent(bool regist){
     auto listener = _listener.lock();
     if (listener) {
@@ -354,7 +323,7 @@ void MediaSource::emitEvent(bool regist){
     }
     //触发广播
     NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaChanged, regist, *this);
-    InfoL << (regist ? "媒体注册:" : "媒体注销:") << _schema << " " << _vhost << " " << _app << " " << _stream_id << " " << getTrackInfoStr(this);
+    InfoL << (regist ? "媒体注册:" : "媒体注销:") << _schema << " " << _vhost << " " << _app << " " << _stream_id;
 }
 
 void MediaSource::regist() {
diff --git a/src/Common/MultiMediaSourceMuxer.cpp b/src/Common/MultiMediaSourceMuxer.cpp
index 771aa41c..0bbe8959 100644
--- a/src/Common/MultiMediaSourceMuxer.cpp
+++ b/src/Common/MultiMediaSourceMuxer.cpp
@@ -8,6 +8,7 @@
 * may be found in the AUTHORS file in the root of the source tree.
 */
 
+#include <math.h>
 #include "MultiMediaSourceMuxer.h"
 namespace mediakit {
 
@@ -16,6 +17,7 @@ namespace mediakit {
 MultiMuxerPrivate::~MultiMuxerPrivate() {}
 MultiMuxerPrivate::MultiMuxerPrivate(const string &vhost, const string &app, const string &stream, float dur_sec,
                                      bool enable_rtsp, bool enable_rtmp, bool enable_hls, bool enable_mp4) {
+    _stream_url = vhost + " " + app + " " + stream;
     if (enable_rtmp) {
         _rtmp = std::make_shared<RtmpMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleMeta>(dur_sec));
     }
@@ -24,7 +26,7 @@ MultiMuxerPrivate::MultiMuxerPrivate(const string &vhost, const string &app, con
     }
 
     if (enable_hls) {
-        _hls = Recorder::createRecorder(Recorder::type_hls, vhost, app, stream);
+        _hls = dynamic_pointer_cast<HlsRecorder>(Recorder::createRecorder(Recorder::type_hls, vhost, app, stream));
     }
 
     if (enable_mp4) {
@@ -53,24 +55,22 @@ void MultiMuxerPrivate::resetTracks() {
 }
 
 void MultiMuxerPrivate::setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener) {
+    _listener = listener;
     if (_rtmp) {
         _rtmp->setListener(listener);
     }
-
     if (_rtsp) {
         _rtsp->setListener(listener);
     }
-
-    auto hls_src = getHlsMediaSource();
-    if (hls_src) {
-        hls_src->setListener(listener);
+    auto hls = _hls;
+    if (hls) {
+        hls->setListener(listener);
     }
-    _listener = listener;
 }
 
 int MultiMuxerPrivate::totalReaderCount() const {
-    auto hls_src = getHlsMediaSource();
-    return (_rtsp ? _rtsp->readerCount() : 0) + (_rtmp ? _rtmp->readerCount() : 0) + (hls_src ? hls_src->readerCount() : 0);
+    auto hls = _hls;
+    return (_rtsp ? _rtsp->readerCount() : 0) + (_rtmp ? _rtmp->readerCount() : 0) + (hls ? hls->readerCount() : 0);
 }
 
 static std::shared_ptr<MediaSinkInterface> makeRecorder(const vector<Track::Ptr> &tracks, Recorder::type type, const string &custom_path, MediaSource &sender){
@@ -87,12 +87,12 @@ bool MultiMuxerPrivate::setupRecord(MediaSource &sender, Recorder::type type, bo
         case Recorder::type_hls : {
             if (start && !_hls) {
                 //开始录制
-                _hls = makeRecorder(getTracks(true), type, custom_path, sender);
-                auto hls_src = getHlsMediaSource();
-                if (hls_src) {
+                auto hls = dynamic_pointer_cast<HlsRecorder>(makeRecorder(getTracks(true), type, custom_path, sender));
+                if (hls) {
                     //设置HlsMediaSource的事件监听器
-                    hls_src->setListener(_listener);
+                    hls->setListener(_listener);
                 }
+                _hls = hls;
             } else if (!start && _hls) {
                 //停止录制
                 _hls = nullptr;
@@ -158,7 +158,10 @@ void MultiMuxerPrivate::onTrackReady(const Track::Ptr &track) {
 }
 
 bool MultiMuxerPrivate::isEnabled(){
-    return (_rtmp ? _rtmp->isEnabled() : false) || (_rtsp ? _rtsp->isEnabled() : false) || _hls || _mp4;
+    auto hls = _hls;
+    return (_rtmp ? _rtmp->isEnabled() : false) ||
+           (_rtsp ? _rtsp->isEnabled() : false) ||
+           (hls ? hls->isEnabled() : false) || _mp4;
 }
 
 void MultiMuxerPrivate::onTrackFrame(const Frame::Ptr &frame) {
@@ -180,6 +183,36 @@ void MultiMuxerPrivate::onTrackFrame(const Frame::Ptr &frame) {
     }
 }
 
+static string getTrackInfoStr(const TrackSource *track_src){
+    _StrPrinter codec_info;
+    auto tracks = track_src->getTracks(true);
+    for (auto &track : tracks) {
+        auto codec_type = track->getTrackType();
+        codec_info << track->getCodecName();
+        switch (codec_type) {
+            case TrackAudio : {
+                auto audio_track = dynamic_pointer_cast<AudioTrack>(track);
+                codec_info << "["
+                           << audio_track->getAudioSampleRate() << "/"
+                           << audio_track->getAudioChannel() << "/"
+                           << audio_track->getAudioSampleBit() << "] ";
+                break;
+            }
+            case TrackVideo : {
+                auto video_track = dynamic_pointer_cast<VideoTrack>(track);
+                codec_info << "["
+                           << video_track->getVideoWidth() << "/"
+                           << video_track->getVideoHeight() << "/"
+                           << round(video_track->getVideoFps()) << "] ";
+                break;
+            }
+            default:
+                break;
+        }
+    }
+    return codec_info;
+}
+
 void MultiMuxerPrivate::onAllTrackReady() {
     if (_rtmp) {
         _rtmp->onAllTrackReady();
@@ -187,18 +220,10 @@ void MultiMuxerPrivate::onAllTrackReady() {
     if (_rtsp) {
         _rtsp->onAllTrackReady();
     }
-
     if (_track_listener) {
         _track_listener->onAllTrackReady();
     }
-}
-
-MediaSource::Ptr MultiMuxerPrivate::getHlsMediaSource() const {
-    auto recorder = dynamic_pointer_cast<HlsRecorder>(_hls);
-    if (recorder) {
-        return recorder->getMediaSource();
-    }
-    return nullptr;
+    InfoL << "stream: " << _stream_url << " , codec info: " << getTrackInfoStr(this);
 }
 
 ///////////////////////////////MultiMediaSourceMuxer//////////////////////////////////
@@ -212,9 +237,9 @@ MultiMediaSourceMuxer::MultiMediaSourceMuxer(const string &vhost, const string &
 }
 
 void MultiMediaSourceMuxer::setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener) {
+    _listener = listener;
     //拦截事件
     _muxer->setMediaListener(shared_from_this());
-    _listener = listener;
 }
 
 void MultiMediaSourceMuxer::setTrackListener(const std::weak_ptr<MultiMuxerPrivate::Listener> &listener) {
@@ -242,7 +267,7 @@ int MultiMediaSourceMuxer::totalReaderCount(MediaSource &sender) {
 }
 
 bool MultiMediaSourceMuxer::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path) {
-    return _muxer->setupRecord(sender,type,start,custom_path);
+    return _muxer->setupRecord(sender, type, start, custom_path);
 }
 
 bool MultiMediaSourceMuxer::isRecording(MediaSource &sender, Recorder::type type) {
@@ -373,8 +398,9 @@ void MultiMediaSourceMuxer::inputFrame(const Frame::Ptr &frame_in) {
 bool MultiMediaSourceMuxer::isEnabled(){
 #if defined(ENABLE_RTPPROXY)
     return (_muxer->isEnabled() || _ps_rtp_sender);
-#endif //ENABLE_RTPPROXY
+#else
     return _muxer->isEnabled();
+#endif //ENABLE_RTPPROXY
 }
 
 
diff --git a/src/Common/MultiMediaSourceMuxer.h b/src/Common/MultiMediaSourceMuxer.h
index 9c148a75..83638f88 100644
--- a/src/Common/MultiMediaSourceMuxer.h
+++ b/src/Common/MultiMediaSourceMuxer.h
@@ -46,13 +46,13 @@ private:
     void onTrackReady(const Track::Ptr & track) override;
     void onTrackFrame(const Frame::Ptr &frame) override;
     void onAllTrackReady() override;
-    MediaSource::Ptr getHlsMediaSource() const;
 
 private:
+    string _stream_url;
     Listener *_track_listener = nullptr;
     RtmpMediaSourceMuxer::Ptr _rtmp;
     RtspMediaSourceMuxer::Ptr _rtsp;
-    MediaSinkInterface::Ptr _hls;
+    HlsRecorder::Ptr _hls;
     MediaSinkInterface::Ptr _mp4;
     std::weak_ptr<MediaSourceEvent> _listener;
 };
diff --git a/src/Http/HttpFileManager.cpp b/src/Http/HttpFileManager.cpp
index 92712023..69944624 100644
--- a/src/Http/HttpFileManager.cpp
+++ b/src/Http/HttpFileManager.cpp
@@ -557,8 +557,22 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
             }
             //hls文件不存在，我们等待其生成并延后回复
             MediaSource::findAsync(mediaInfo, strongSession, [response_file, cookie, cb, strFile, parser](const MediaSource::Ptr &src) {
-                //hls已经生成或者超时后仍未生成，那么不管怎么样都返回客户端
-                response_file(cookie, cb, strFile, parser);
+                if (src && File::is_file(strFile.data())) {
+                    //流和m3u8文件都存在，那么直接返回文件
+                    response_file(cookie, cb, strFile, parser);
+                    return;
+                }
+                auto hls = dynamic_pointer_cast<HlsMediaSource>(src);
+                if (!hls) {
+                    //流不存在，那么直接返回文件
+                    response_file(cookie, cb, strFile, parser);
+                    return;
+                }
+
+                //流存在，但是m3u8文件不存在，那么等待生成m3u8文件
+                hls->waitForHls([response_file, cookie, cb, strFile, parser]() {
+                    response_file(cookie, cb, strFile, parser);
+                });
             });
         }
     });
diff --git a/src/Record/HlsMaker.cpp b/src/Record/HlsMaker.cpp
index 0ae69d16..ac8645d9 100644
--- a/src/Record/HlsMaker.cpp
+++ b/src/Record/HlsMaker.cpp
@@ -124,4 +124,13 @@ bool HlsMaker::isLive() {
     return _seg_number != 0;
 }
 
+void HlsMaker::clear(){
+    _seg_dur_list.clear();
+    _last_file_name.clear();
+    _ticker_last_data.resetTime();
+    _ticker.resetTime();
+    _file_index = 0;
+}
+
+
 }//namespace mediakit
\ No newline at end of file
diff --git a/src/Record/HlsMaker.h b/src/Record/HlsMaker.h
index 2a2324c3..a03acb51 100644
--- a/src/Record/HlsMaker.h
+++ b/src/Record/HlsMaker.h
@@ -39,6 +39,17 @@ public:
      * @param is_idr_fast_packet 是否为关键帧第一个包
      */
     void inputData(void *data, uint32_t len, uint32_t timestamp, bool is_idr_fast_packet);
+
+    /**
+     * 是否为直播
+     */
+    bool isLive();
+
+    /**
+     * 清空记录
+     */
+    void clear();
+
 protected:
     /**
      * 创建ts切片文件回调
@@ -73,10 +84,6 @@ protected:
      */
     void flushLastSegment(bool eof = false);
 
-    /**
-     * 是否为直播
-     */
-    bool isLive();
 private:
     /**
      * 生成m3u8文件
@@ -94,6 +101,7 @@ private:
      * @param timestamp
      */
     void addNewSegment(uint32_t timestamp);
+
 private:
     uint32_t _seg_number = 0;
     float _seg_duration = 0;
diff --git a/src/Record/HlsMakerImp.cpp b/src/Record/HlsMakerImp.cpp
index 28f88714..7310464e 100644
--- a/src/Record/HlsMakerImp.cpp
+++ b/src/Record/HlsMakerImp.cpp
@@ -11,6 +11,7 @@
 #include "HlsMakerImp.h"
 #include "Util/util.h"
 #include "Util/uv_errno.h"
+
 using namespace toolkit;
 
 namespace mediakit {
@@ -24,37 +25,44 @@ HlsMakerImp::HlsMakerImp(const string &m3u8_file,
     _path_hls = m3u8_file;
     _params = params;
     _buf_size = bufSize;
-    _file_buf.reset(new char[bufSize],[](char *ptr){
+    _file_buf.reset(new char[bufSize], [](char *ptr) {
         delete[] ptr;
     });
 }
 
 HlsMakerImp::~HlsMakerImp() {
+    clearCache();
+}
+
+void HlsMakerImp::clearCache() {
     //录制完了
     flushLastSegment(true);
-    if(isLive()){
+    if (isLive()) {
         //hls直播才删除文件
+        clear();
+        _file = nullptr;
+        _segment_file_paths.clear();
         File::delete_file(_path_prefix.data());
     }
 }
 
 string HlsMakerImp::onOpenSegment(int index) {
-    string segment_name , segment_path;
+    string segment_name, segment_path;
     {
         auto strDate = getTimeStr("%Y-%m-%d");
         auto strHour = getTimeStr("%H");
         auto strTime = getTimeStr("%M-%S");
         segment_name = StrPrinter << strDate + "/" + strHour + "/" + strTime << "_" << index << ".ts";
-        segment_path = _path_prefix + "/" +  segment_name;
-        if(isLive()){
-            _segment_file_paths.emplace(index,segment_path);
+        segment_path = _path_prefix + "/" + segment_name;
+        if (isLive()) {
+            _segment_file_paths.emplace(index, segment_path);
         }
     }
     _file = makeFile(segment_path, true);
-    if(!_file){
-        WarnL << "create file falied," << segment_path << " " <<  get_uv_errmsg();
+    if (!_file) {
+        WarnL << "create file failed," << segment_path << " " << get_uv_errmsg();
     }
-    if(_params.empty()){
+    if (_params.empty()) {
         return std::move(segment_name);
     }
     return std::move(segment_name + "?" + _params);
@@ -62,7 +70,7 @@ string HlsMakerImp::onOpenSegment(int index) {
 
 void HlsMakerImp::onDelSegment(int index) {
     auto it = _segment_file_paths.find(index);
-    if(it == _segment_file_paths.end()){
+    if (it == _segment_file_paths.end()) {
         return;
     }
     File::delete_file(it->second.data());
@@ -77,27 +85,27 @@ void HlsMakerImp::onWriteSegment(const char *data, int len) {
 
 void HlsMakerImp::onWriteHls(const char *data, int len) {
     auto hls = makeFile(_path_hls);
-    if(hls){
-        fwrite(data,len,1,hls.get());
+    if (hls) {
+        fwrite(data, len, 1, hls.get());
         hls.reset();
-        if(_media_src){
+        if (_media_src) {
             _media_src->registHls();
         }
-    } else{
-        WarnL << "create hls file falied," << _path_hls << " " <<  get_uv_errmsg();
+    } else {
+        WarnL << "create hls file failed," << _path_hls << " " << get_uv_errmsg();
     }
     //DebugL << "\r\n"  << string(data,len);
 }
 
 
-std::shared_ptr<FILE> HlsMakerImp::makeFile(const string &file,bool setbuf) {
+std::shared_ptr<FILE> HlsMakerImp::makeFile(const string &file, bool setbuf) {
     auto file_buf = _file_buf;
-    auto ret= shared_ptr<FILE>(File::create_file(file.data(), "wb"), [file_buf](FILE *fp) {
+    auto ret = shared_ptr<FILE>(File::create_file(file.data(), "wb"), [file_buf](FILE *fp) {
         if (fp) {
             fclose(fp);
         }
     });
-    if(ret && setbuf){
+    if (ret && setbuf) {
         setvbuf(ret.get(), _file_buf.get(), _IOFBF, _buf_size);
     }
     return ret;
@@ -107,7 +115,7 @@ void HlsMakerImp::setMediaSource(const string &vhost, const string &app, const s
     _media_src = std::make_shared<HlsMediaSource>(vhost, app, stream_id);
 }
 
-MediaSource::Ptr HlsMakerImp::getMediaSource() const{
+HlsMediaSource::Ptr HlsMakerImp::getMediaSource() const {
     return _media_src;
 }
 
diff --git a/src/Record/HlsMakerImp.h b/src/Record/HlsMakerImp.h
index 80ea54dd..7764644f 100644
--- a/src/Record/HlsMakerImp.h
+++ b/src/Record/HlsMakerImp.h
@@ -27,7 +27,8 @@ public:
                 uint32_t bufSize  = 64 * 1024,
                 float seg_duration = 5,
                 uint32_t seg_number = 3);
-    virtual ~HlsMakerImp();
+
+    ~HlsMakerImp() override;
 
     /**
      * 设置媒体信息
@@ -41,23 +42,31 @@ public:
      * 获取MediaSource
      * @return
      */
-     MediaSource::Ptr getMediaSource() const;
+    HlsMediaSource::Ptr getMediaSource() const;
+
+     /**
+      * 清空缓存
+      */
+     void clearCache();
+
 protected:
     string onOpenSegment(int index) override ;
     void onDelSegment(int index) override;
     void onWriteSegment(const char *data, int len) override;
     void onWriteHls(const char *data, int len) override;
+
 private:
     std::shared_ptr<FILE> makeFile(const string &file,bool setbuf = false);
+
 private:
-    HlsMediaSource::Ptr _media_src;
-    map<int /*index*/,string/*file_path*/> _segment_file_paths;
+    int _buf_size;
+    string _params;
+    string _path_hls;
+    string _path_prefix;
     std::shared_ptr<FILE> _file;
     std::shared_ptr<char> _file_buf;
-    string _path_prefix;
-    string _path_hls;
-    string _params;
-    int _buf_size;
+    HlsMediaSource::Ptr _media_src;
+    map<int /*index*/,string/*file_path*/> _segment_file_paths;
 };
 
 }//namespace mediakit
diff --git a/src/Record/HlsMediaSource.h b/src/Record/HlsMediaSource.h
index b2813a4b..432d104e 100644
--- a/src/Record/HlsMediaSource.h
+++ b/src/Record/HlsMediaSource.h
@@ -22,7 +22,7 @@ public:
     typedef RingBuffer<string> RingType;
     typedef std::shared_ptr<HlsMediaSource> Ptr;
     HlsMediaSource(const string &vhost, const string &app, const string &stream_id) : MediaSource(HLS_SCHEMA, vhost, app, stream_id){
-        _readerCount = 0;
+        _reader_count = 0;
         _ring = std::make_shared<RingType>();
     }
 
@@ -40,18 +40,34 @@ public:
      * @return
      */
     int readerCount() override {
-        return _readerCount.load();
+        return _reader_count.load();
     }
 
     /**
-     * 注册hls
+     * 生成m3u8文件时触发
      */
     void registHls(){
-        if (!_registed) {
-            _registed = true;
+        if (!_is_regist) {
+            _is_regist = true;
             onReaderChanged(0);
             regist();
         }
+
+        //m3u8文件生成，发送给播放器
+        decltype(_list_cb) copy;
+        {
+            lock_guard<mutex> lck(_mtx_cb);
+            copy.swap(_list_cb);
+        }
+        copy.for_each([](const function<void()> &cb) {
+            cb();
+        });
+    }
+
+    void waitForHls(function<void()> cb){
+        //等待生成m3u8文件
+        lock_guard<mutex> lck(_mtx_cb);
+        _list_cb.emplace_back(std::move(cb));
     }
 
 private:
@@ -61,16 +77,19 @@ private:
      */
     void modifyReaderCount(bool add) {
         if (add) {
-            ++_readerCount;
+            ++_reader_count;
         } else {
-            --_readerCount;
+            --_reader_count;
         }
-        onReaderChanged(_readerCount);
+        onReaderChanged(_reader_count);
     }
+
 private:
-    atomic_int _readerCount;
-    bool _registed = false;
+    bool _is_regist = false;
+    atomic_int _reader_count;
     RingType::Ptr _ring;
+    mutex _mtx_cb;
+    List<function<void()> > _list_cb;
 };
 
 class HlsCookieData{
diff --git a/src/Record/HlsRecorder.h b/src/Record/HlsRecorder.h
index 20c3d68f..88c1e066 100644
--- a/src/Record/HlsRecorder.h
+++ b/src/Record/HlsRecorder.h
@@ -15,37 +15,76 @@
 #include "TsMuxer.h"
 namespace mediakit {
 
-class HlsRecorder
+class HlsRecorder : public MediaSourceEventInterceptor,  public std::enable_shared_from_this<HlsRecorder>
 #if defined(ENABLE_HLS)
-: public TsMuxer
+ , public TsMuxer
 #endif
         {
 public:
     typedef std::shared_ptr<HlsRecorder> Ptr;
     HlsRecorder(const string &m3u8_file, const string &params){
-        GET_CONFIG(uint32_t,hlsNum,Hls::kSegmentNum);
-        GET_CONFIG(uint32_t,hlsBufSize,Hls::kFileBufSize);
-        GET_CONFIG(uint32_t,hlsDuration,Hls::kSegmentDuration);
-        _hls = new HlsMakerImp(m3u8_file,params,hlsBufSize,hlsDuration,hlsNum);
+        GET_CONFIG(uint32_t, hlsNum, Hls::kSegmentNum);
+        GET_CONFIG(uint32_t, hlsBufSize, Hls::kFileBufSize);
+        GET_CONFIG(uint32_t, hlsDuration, Hls::kSegmentDuration);
+        _hls = std::make_shared<HlsMakerImp>(m3u8_file, params, hlsBufSize, hlsDuration, hlsNum);
+        //清空上次的残余文件
+        _hls->clearCache();
     }
-    ~HlsRecorder(){
-        delete _hls;
-    }
-    void setMediaSource(const string &vhost, const string &app, const string &stream_id){
+
+    ~HlsRecorder(){}
+
+    void setMediaSource(const string &vhost, const string &app, const string &stream_id) {
         _hls->setMediaSource(vhost, app, stream_id);
     }
 
-    MediaSource::Ptr getMediaSource() const{
-        return _hls->getMediaSource();
+    void setListener(const std::weak_ptr<MediaSourceEvent> &listener) {
+        _listener = listener;
+        _hls->getMediaSource()->setListener(shared_from_this());
+        //先注册媒体流，后续可以按需生成
+        _hls->getMediaSource()->registHls();
     }
+
+    int readerCount() {
+        return _hls->getMediaSource()->readerCount();
+    }
+
+    void onReaderChanged(MediaSource &sender, int size) override {
+        //hls保留切片个数为0时代表为hls录制(不删除切片)，那么不管有无观看者都一直生成hls
+        _enabled = _hls->isLive() ? size : true;
+        if (!size && _hls->isLive()) {
+            //hls直播时，如果无人观看就删除视频缓存，目的是为了防止视频跳跃
+            _clear_cache = true;
+        }
+        MediaSourceEventInterceptor::onReaderChanged(sender, size);
+    }
+
+    bool isEnabled() {
+        //缓存尚未清空时，还允许触发inputFrame函数，以便及时清空缓存
+        return _clear_cache ? true : _enabled;
+    }
+
 #if defined(ENABLE_HLS)
-protected:
-    void onTs(const void *packet, int bytes,uint32_t timestamp,bool is_idr_fast_packet) override {
-        _hls->inputData((char *)packet,bytes,timestamp, is_idr_fast_packet);
-    };
-#endif
+    void inputFrame(const Frame::Ptr &frame) override{
+        if (_clear_cache) {
+            _clear_cache = false;
+            _hls->clearCache();
+        }
+        if (_enabled) {
+            TsMuxer::inputFrame(frame);
+        }
+    }
+
 private:
-    HlsMakerImp *_hls;
+    void onTs(const void *packet, int bytes, uint32_t timestamp, bool is_idr_fast_packet) override {
+        _hls->inputData((char *) packet, bytes, timestamp, is_idr_fast_packet);
+    }
+#endif
+
+private:
+    //默认不生成hls文件，有播放器时再生成
+    bool _enabled = false;
+    bool _clear_cache = false;
+    std::shared_ptr<HlsMakerImp> _hls;
 };
 }//namespace mediakit
 #endif //HLSRECORDER_H
diff --git a/src/Rtmp/RtmpMediaSourceMuxer.h b/src/Rtmp/RtmpMediaSourceMuxer.h
index ddc1c601..e176beab 100644
--- a/src/Rtmp/RtmpMediaSourceMuxer.h
+++ b/src/Rtmp/RtmpMediaSourceMuxer.h
@@ -33,6 +33,7 @@ public:
 
     void setListener(const std::weak_ptr<MediaSourceEvent> &listener){
         _listener = listener;
+        _media_src->setListener(shared_from_this());
     }
 
     void setTimeStamp(uint32_t stamp){
@@ -45,7 +46,6 @@ public:
 
     void onAllTrackReady(){
         makeConfigPacket();
-        _media_src->setListener(shared_from_this());
         _media_src->setMetaData(getMetadata());
     }
 
diff --git a/src/Rtsp/RtspMediaSourceMuxer.h b/src/Rtsp/RtspMediaSourceMuxer.h
index fdb815cd..10bd920c 100644
--- a/src/Rtsp/RtspMediaSourceMuxer.h
+++ b/src/Rtsp/RtspMediaSourceMuxer.h
@@ -33,6 +33,7 @@ public:
 
     void setListener(const std::weak_ptr<MediaSourceEvent> &listener){
         _listener = listener;
+        _media_src->setListener(shared_from_this());
     }
 
     int readerCount() const{
@@ -44,7 +45,6 @@ public:
     }
 
     void onAllTrackReady(){
-        _media_src->setListener(shared_from_this());
         _media_src->setSdp(getSdp());
     }