添加无人观看主动断开事件

server/WebApi.cpp

@@ -343,7 +343,7 @@ void installWebApi() {
     });
 
     //主动关断流，包括关断拉流、推流
-    //测试url http://127.0.0.1/index/api/close_stream?schema=rtsp&vhost=__defaultVhost__&app=live&stream=obs
+    //测试url http://127.0.0.1/index/api/close_stream?schema=rtsp&vhost=__defaultVhost__&app=live&stream=obs&force=1
     API_REGIST(api,close_stream,{
         CHECK_SECRET();
         CHECK_ARGS("schema","vhost","app","stream");
@@ -353,7 +353,7 @@ void installWebApi() {
                                      allArgs["app"],
                                      allArgs["stream"]);
         if(src){
-            bool flag = src->close();
+            bool flag = src->close(allArgs["force"].as<bool>());
             val["code"] = flag ? 0 : -1;
             val["msg"] = flag ? "success" : "close failed";
         }else{
@@ -511,6 +511,13 @@ void installWebApi() {
         //shell登录调试事件
         throw SuccessException();
     });
+
+    API_REGIST(hook,on_stream_none_reader,{
+        //无人观看流默认关闭
+        val["close"] = true;
+    });
+
+
 }
 
 void unInstallWebApi(){

server/WebHook.cpp

@@ -42,6 +42,7 @@ const char kOnStreamChanged[] = HOOK_FIELD"on_stream_changed";
 const char kOnStreamNotFound[] = HOOK_FIELD"on_stream_not_found";
 const char kOnRecordMp4[] = HOOK_FIELD"on_record_mp4";
 const char kOnShellLogin[] = HOOK_FIELD"on_shell_login";
+const char kOnStreamNoneReader[] = HOOK_FIELD"on_stream_none_reader";
 const char kAdminParams[] = HOOK_FIELD"admin_params";
 
 onceToken token([](){
@@ -56,6 +57,7 @@ onceToken token([](){
     mINI::Instance()[kOnStreamNotFound] = "https://127.0.0.1/index/hook/on_stream_not_found";
     mINI::Instance()[kOnRecordMp4] = "https://127.0.0.1/index/hook/on_record_mp4";
     mINI::Instance()[kOnShellLogin] = "https://127.0.0.1/index/hook/on_shell_login";
+    mINI::Instance()[kOnStreamNoneReader] = "https://127.0.0.1/index/hook/on_stream_none_reader";
     mINI::Instance()[kAdminParams] = "secret=035c73f7-bb6b-4889-a715-d9eb2d1925cc";
 },nullptr);
 }//namespace Hook
@@ -159,7 +161,7 @@ void installWebHook(){
     GET_CONFIG_AND_REGISTER(string,hook_stream_not_found,Hook::kOnStreamNotFound);
     GET_CONFIG_AND_REGISTER(string,hook_record_mp4,Hook::kOnRecordMp4);
     GET_CONFIG_AND_REGISTER(string,hook_shell_login,Hook::kOnShellLogin);
-
+    GET_CONFIG_AND_REGISTER(string,hook_stream_none_reader,Hook::kOnStreamNoneReader);
 
     NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastMediaPublish,[](BroadcastMediaPublishArgs){
         if(!hook_enable || args._param_strs == hook_adminparams || hook_publish.empty()){
@@ -325,6 +327,29 @@ void installWebHook(){
         });
     });
 
+    NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastStreamNoneReader,[](BroadcastStreamNoneReaderArgs){
+        if(!hook_enable || hook_stream_none_reader.empty()){
+            return;
+        }
+
+        ArgsType body;
+        body["schema"] = sender.getSchema();
+        body["vhost"] = sender.getVhost();
+        body["app"] = sender.getApp();
+        body["stream"] = sender.getId();
+        weak_ptr<MediaSource> weakSrc = sender.shared_from_this();
+        //执行hook
+        do_http_hook(hook_stream_none_reader,body, [weakSrc](const Value &obj,const string &err){
+            bool flag = obj["close"].asBool();
+            auto strongSrc = weakSrc.lock();
+            if(!flag || !err.empty() || !strongSrc){
+                return;
+            }
+            strongSrc->close(false);
+        });
+
+    });
+
 }
 
 void unInstallWebHook(){

src/Common/MediaSource.h

@@ -44,8 +44,8 @@ using namespace toolkit;
 
 namespace mediakit {
 
-class MediaSourceEvent
+class MediaSource;
-{
+class MediaSourceEvent{
 public:
     MediaSourceEvent(){};
     virtual ~MediaSourceEvent(){};
@@ -55,15 +55,18 @@ public:
         return false;
     }
 
-    virtual bool close() {
+    virtual bool close(bool force) {
         //通知其停止推流
         return false;
     }
 
-    virtual void onReaderChanged(const EventPoller::Ptr &poller,int size,bool add_flag){}
+    virtual void onNoneReader(MediaSource &sender){
+        //没有任何读取器消费该源，表明该源可以关闭了
+        NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastStreamNoneReader,sender);
+    }
 };
-class MediaInfo
+
-{
+class MediaInfo{
 public:
     MediaInfo(){}
     MediaInfo(const string &url){
@@ -85,7 +88,6 @@ public:
     string _streamid;
     StrCaseMap _params;
     string _param_strs;
-
 };
 
 
@@ -144,12 +146,12 @@ public:
 
     virtual uint32_t getTimeStamp(TrackType trackType) = 0;
 
-    bool close() {
+    bool close(bool force) {
         auto listener = _listener.lock();
         if(!listener){
             return false;
         }
-        return listener->close();
+        return listener->close(force);
     }
     virtual void setListener(const std::weak_ptr<MediaSourceEvent> &listener){
         _listener = listener;

src/Common/config.cpp

@@ -65,11 +65,15 @@ const char kBroadcastFlowReport[] = "kBroadcastFlowReport";
 const char kBroadcastReloadConfig[] = "kBroadcastReloadConfig";
 const char kBroadcastShellLogin[] = "kBroadcastShellLogin";
 const char kBroadcastNotFoundStream[] = "kBroadcastNotFoundStream";
+const char kBroadcastStreamNoneReader[] = "kBroadcastStreamNoneReader";
 
 const char kFlowThreshold[] = "broadcast.flowThreshold";
+const char kStreamNoneReaderDelayMS[] = "broadcast.streamNoneReaderDelayMS";
+
 
 onceToken token([](){
     mINI::Instance()[kFlowThreshold] = 1024;
+    mINI::Instance()[kStreamNoneReaderDelayMS] = 5 * 1000;
 },nullptr);
 } //namespace Broadcast
 

src/Common/config.h

@@ -116,9 +116,18 @@ extern const char kBroadcastFlowReport[];
 extern const char kBroadcastNotFoundStream[];
 #define BroadcastNotFoundStreamArgs const MediaInfo &args,TcpSession &sender
 
+//某个流无人消费时触发，目的为了实现无人观看时主动断开拉流等业务逻辑
+extern const char kBroadcastStreamNoneReader[];
+#define BroadcastStreamNoneReaderArgs MediaSource &sender
+
 //流量汇报事件流量阈值,单位KB，默认1MB
 extern const char kFlowThreshold[];
 
+//流无人观看并且超过若干时间后才触发kBroadcastStreamNoneReader事件
+//默认连续5秒无人观看然后触发kBroadcastStreamNoneReader事件
+extern const char kStreamNoneReaderDelayMS[];
+
+
 //更新配置文件事件广播,执行loadIniConfig函数加载配置文件成功后会触发该广播
 extern const char kBroadcastReloadConfig[];
 #define BroadcastReloadConfigArgs void

src/MediaFile/MediaReader.cpp

@@ -166,11 +166,21 @@ void MediaReader::startReadMP4() {
 	 seek(ui32Stamp);
 	 return true;
 }
-bool MediaReader::close(){
+bool MediaReader::close(bool force){
+    if(!force && _mediaMuxer->readerCount() != 0 ){
+        return false;
+    }
 	_timer.reset();
     return true;
 }
 
+void MediaReader::onNoneReader(MediaSource &sender) {
+    if(_mediaMuxer->readerCount() != 0){
+        return;
+    }
+    MediaSourceEvent::onNoneReader(sender);
+}
+
 bool MediaReader::readSample(int iTimeInc,bool justSeekSyncFrame) {
 	TimeTicker();
 	lock_guard<recursive_mutex> lck(_mtx);

src/MediaFile/MediaReader.h

@@ -68,7 +68,7 @@ public:
 	 * 关闭MediaReader的流化进程，会触发该对象放弃自持有
 	 * @return
 	 */
-	bool close() override;
+	bool close(bool force) override;
 
 	/**
 	 * 自动生成MediaReader对象然后查找相关的MediaSource对象
@@ -86,8 +86,10 @@ public:
 											  const string &strId,
 											  const string &filePath = "",
 											  bool checkApp = true);
-#ifdef ENABLE_MP4V2
+
 private:
+    void onNoneReader(MediaSource &sender) override;
+#ifdef ENABLE_MP4V2
     void seek(uint32_t iSeekTime,bool bReStart = true);
 	inline void setSeekTime(uint32_t iSeekTime);
 	inline uint32_t getVideoCurrentTime();

src/Player/PlayerProxy.cpp

@@ -145,7 +145,11 @@ void PlayerProxy::rePlay(const string &strUrl,int iFailedCnt){
 		return false;
 	}, getPoller());
 }
-bool PlayerProxy::close() {
+bool PlayerProxy::close(bool force) {
+    if(!force && _mediaMuxer->readerCount() != 0){
+        return false;
+    }
+
 	//通知其停止推流
 	weak_ptr<PlayerProxy> weakSlef = dynamic_pointer_cast<PlayerProxy>(shared_from_this());
 	getPoller()->async_first([weakSlef]() {
@@ -161,6 +165,12 @@ bool PlayerProxy::close() {
     return true;
 }
 
+void PlayerProxy::onNoneReader(MediaSource &sender) {
+    if(_mediaMuxer->readerCount() != 0){
+        return;
+    }
+    MediaSourceEvent::onNoneReader(sender);
+}
 
 class MuteAudioMaker : public FrameRingInterfaceDelegate{
 public:

src/Player/PlayerProxy.h

@@ -79,8 +79,9 @@ public:
      * 被主动关闭
      * @return
      */
-    bool close() override;
+    bool close(bool force) override;
 private:
+    void onNoneReader(MediaSource &sender) override;
 	void rePlay(const string &strUrl,int iFailedCnt);
 	void onPlaySuccess();
 private:

src/Rtmp/RtmpMediaSource.h

@@ -53,10 +53,13 @@ public:
 	typedef std::shared_ptr<RtmpMediaSource> Ptr;
 	typedef RingBuffer<RtmpPacket::Ptr> RingType;
 
-	RtmpMediaSource(const string &vhost,const string &strApp, const string &strId,int ringSize = 0) :
+	RtmpMediaSource(const string &vhost,
+	                const string &strApp,
+	                const string &strId,
+	                int ringSize = 0) :
 			MediaSource(RTMP_SCHEMA,vhost,strApp,strId),
-			_pRing(new RingBuffer<RtmpPacket::Ptr>(ringSize)) {
+			_ringSize(ringSize) {}
-	}
+
 	virtual ~RtmpMediaSource() {}
 
 	const RingType::Ptr &getRing() const {
@@ -65,7 +68,7 @@ public:
 	}
 
 	int readerCount() override {
-        return _pRing->readerCount();
+        return _pRing ? _pRing->readerCount() : 0;
 	}
 
 	const AMFValue &getMetaData() const {
@@ -89,14 +92,25 @@ public:
 		lock_guard<recursive_mutex> lock(_mtxMap);
 		if (pkt->isCfgFrame()) {
 			_mapCfgFrame[pkt->typeId] = pkt;
-		} else{
+            return;
-			if(!_bRegisted){
-                regist();
-                _bRegisted = true;
 		}
+
         _mapStamp[pkt->typeId] = pkt->timeStamp;
-			_pRing->write(pkt,pkt->isVideoKeyFrame());
+
+        if(!_pRing){
+            weak_ptr<RtmpMediaSource> weakSelf = dynamic_pointer_cast<RtmpMediaSource>(shared_from_this());
+            _pRing = std::make_shared<RingType>(_ringSize,[weakSelf](const EventPoller::Ptr &,int size,bool){
+                auto strongSelf = weakSelf.lock();
+                if(!strongSelf){
+                    return;
                 }
+                strongSelf->onReaderChanged(size);
+            });
+            onReaderChanged(0);
+            regist();
+        }
+        _pRing->write(pkt,pkt->isVideoKeyFrame());
+        checkNoneReader();
     }
 
 	uint32_t getTimeStamp(TrackType trackType) override {
@@ -110,13 +124,38 @@ public:
 				return MAX(_mapStamp[MSG_VIDEO],_mapStamp[MSG_AUDIO]);
 		}
 	}
+
+private:
+    void onReaderChanged(int size){
+        if(size != 0 || readerCount() != 0){
+            //还有消费者正在观看该流，我们记录最后一次活动时间
+            _readerTicker.resetTime();
+            _asyncEmitNoneReader = false;
+            return;
+        }
+        _asyncEmitNoneReader  = true;
+    }
+
+    void checkNoneReader(){
+        GET_CONFIG_AND_REGISTER(int,stream_none_reader_delay,Broadcast::kStreamNoneReaderDelayMS);
+        if(_asyncEmitNoneReader && _readerTicker.elapsedTime() > stream_none_reader_delay){
+            _asyncEmitNoneReader = false;
+            auto listener = _listener.lock();
+            if(!listener){
+                return;
+            }
+            listener->onNoneReader(*this);
+        }
+    }
 protected:
 	AMFValue _metadata;
     unordered_map<int, RtmpPacket::Ptr> _mapCfgFrame;
 	unordered_map<int,uint32_t> _mapStamp;
 	mutable recursive_mutex _mtxMap;
 	RingBuffer<RtmpPacket::Ptr>::Ptr _pRing; //rtp环形缓冲
-	bool _bRegisted = false;
+	int _ringSize;
+	Ticker _readerTicker;
+    bool _asyncEmitNoneReader = false;
 };
 
 } /* namespace mediakit */

src/Rtmp/RtmpSession.cpp

@@ -360,7 +360,7 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
         strongSelf->shutdown();
     });
     _pPlayerSrc = src;
-    if (src->getRing()->readerCount() == 1) {
+    if (src->readerCount() == 1) {
         src->seekTo(0);
     }
 

src/Rtmp/RtmpSession.h

@@ -81,7 +81,10 @@ private:
 		sendResponse(MSG_CMD, invoke.data());
 	}
 
-    bool close() override {
+    bool close(bool force) override {
+        if(!force && _pPublisherSrc->readerCount() != 0){
+            return false;
+        }
         InfoL << "kick out:" << _mediaInfo._vhost << " " << _mediaInfo._app << " " << _mediaInfo._streamid;
         safeShutdown();
         return true;

src/Rtmp/RtmpToRtspMediaSource.h

@@ -91,7 +91,7 @@ public:
     }
 
     int readerCount() override {
-        return RtmpMediaSource::readerCount() + _rtspMuxer->readerCount();
+        return RtmpMediaSource::readerCount() + (_rtspMuxer ? _rtspMuxer->readerCount() : 0);
     }
 private:
 	RtmpDemuxer::Ptr _rtmpDemuxer;

src/RtmpMuxer/RtmpMediaSourceMuxer.h

@@ -49,7 +49,7 @@ public:
         _mediaSouce->setListener(listener);
     }
     int readerCount() const{
-        return _mediaSouce->getRing()->readerCount();
+        return _mediaSouce->readerCount();
     }
 private:
     void onAllTrackReady() override {

src/Rtsp/RtspMediaSource.h

@@ -55,10 +55,13 @@ public:
 	typedef std::shared_ptr<RtspMediaSource> Ptr;
 	typedef RingBuffer<RtpPacket::Ptr> RingType;
 
-	RtspMediaSource(const string &strVhost,const string &strApp, const string &strId,int ringSize = 0) :
+	RtspMediaSource(const string &strVhost,
+	                const string &strApp,
+	                const string &strId,
+	                int ringSize = 0) :
 			MediaSource(RTSP_SCHEMA,strVhost,strApp,strId),
-			_pRing(new RingBuffer<RtpPacket::Ptr>(ringSize)) {
+			_ringSize(ringSize){}
-	}
+
 	virtual ~RtspMediaSource() {}
 
 	const RingType::Ptr &getRing() const {
@@ -67,7 +70,7 @@ public:
 	}
 
     int readerCount() override {
-        return _pRing->readerCount();
+        return _pRing ? _pRing->readerCount() : 0;
 	}
 
     const string& getSdp() const {
@@ -114,7 +117,6 @@ public:
 		//派生类设置该媒体源媒体描述信息
 		_strSdp = sdp;
 		_sdpAttr.load(sdp);
-		regist();
 	}
 
 	void onWrite(const RtpPacket::Ptr &rtppt, bool keyPos) override {
@@ -124,12 +126,50 @@ public:
 			track->_time_stamp = rtppt->timeStamp;
 			track->_ssrc = rtppt->ssrc;
 		}
+		if(!_pRing){
+		    weak_ptr<RtspMediaSource> weakSelf = dynamic_pointer_cast<RtspMediaSource>(shared_from_this());
+            _pRing = std::make_shared<RingType>(_ringSize,[weakSelf](const EventPoller::Ptr &,int size,bool){
+                auto strongSelf = weakSelf.lock();
+                if(!strongSelf){
+                    return;
+                }
+                strongSelf->onReaderChanged(size);
+            });
+            onReaderChanged(0);
+            regist();
+		}
 		_pRing->write(rtppt,keyPos);
+        checkNoneReader();
+	}
+private:
+    void onReaderChanged(int size){
+        if(size != 0 || readerCount() != 0){
+            //还有消费者正在观看该流，我们记录最后一次活动时间
+            _readerTicker.resetTime();
+            _asyncEmitNoneReader = false;
+            return;
+        }
+        _asyncEmitNoneReader  = true;
+    }
+
+    void checkNoneReader(){
+        GET_CONFIG_AND_REGISTER(int,stream_none_reader_delay,Broadcast::kStreamNoneReaderDelayMS);
+        if(_asyncEmitNoneReader && _readerTicker.elapsedTime() > stream_none_reader_delay){
+            _asyncEmitNoneReader = false;
+            auto listener = _listener.lock();
+            if(!listener){
+                return;
+            }
+            listener->onNoneReader(*this);
+        }
 	}
 protected:
 	SdpAttr _sdpAttr;
     string _strSdp; //媒体描述信息
     RingType::Ptr _pRing; //rtp环形缓冲
+    int _ringSize;
+    Ticker _readerTicker;
+    bool _asyncEmitNoneReader = false;
 };
 
 } /* namespace mediakit */

src/Rtsp/RtspSession.cpp

@@ -1161,7 +1161,10 @@ inline int RtspSession::getTrackIndexByInterleaved(int interleaved){
 	return -1;
 }
 
-bool RtspSession::close() {
+bool RtspSession::close(bool force) {
+    if(!force && _pushSrc->readerCount() != 0){
+        return false;
+    }
 	InfoL << "kick out:" << _mediaInfo._vhost << " " << _mediaInfo._app << " " << _mediaInfo._streamid;
 	safeShutdown();
 	return true;

src/Rtsp/RtspSession.h

@@ -105,7 +105,7 @@ protected:
 	//RtpReceiver override
 	void onRtpSorted(const RtpPacket::Ptr &rtppt, int trackidx) override;
 	//MediaSourceEvent override
-	bool close() override ;
+	bool close(bool force) override ;
 
 	//TcpSession override
     int send(const Buffer::Ptr &pkt) override;

src/Rtsp/RtspToRtmpMediaSource.h

@@ -65,8 +65,7 @@ public:
                 _rtmpMuxer = std::make_shared<RtmpMediaSourceMuxer>(getVhost(),
                                                                     getApp(),
                                                                     getId(),
-                                                                    std::make_shared<TitleMete>(
+                                                                    std::make_shared<TitleMete>(_rtspDemuxer->getDuration()));
-                                                                            _rtspDemuxer->getDuration()));
                 for (auto &track : _rtspDemuxer->getTracks(false)) {
                     _rtmpMuxer->addTrack(track);
                     _recorder->addTrack(track);
@@ -86,7 +85,7 @@ public:
         }
     }
     int readerCount() override {
-        return RtspMediaSource::readerCount() + _rtmpMuxer->readerCount();
+        return RtspMediaSource::readerCount() + (_rtmpMuxer ? _rtmpMuxer->readerCount() : 0);
     }
 private:
     RtspDemuxer::Ptr _rtspDemuxer;

src/RtspMuxer/RtspMediaSourceMuxer.h

@@ -39,8 +39,9 @@ public:
     RtspMediaSourceMuxer(const string &vhost,
                          const string &strApp,
                          const string &strId,
-                         const TitleSdp::Ptr &title = nullptr) : RtspMuxer(title){
+                         const TitleSdp::Ptr &title = nullptr,
-        _mediaSouce = std::make_shared<RtspMediaSource>(vhost,strApp,strId);
+                         bool masterSrc = true) : RtspMuxer(title){
+        _mediaSouce = std::make_shared<RtspMediaSource>(vhost,strApp,strId,0,masterSrc);
         getRtpRing()->setDelegate(_mediaSouce);
     }
     virtual ~RtspMediaSourceMuxer(){}
@@ -49,7 +50,7 @@ public:
         _mediaSouce->setListener(listener);
     }
     int readerCount() const{
-        return _mediaSouce->getRing()->readerCount();
+        return _mediaSouce->readerCount();
     }
     void setTimeStamp(uint32_t stamp){
         _mediaSouce->setTimeStamp(stamp);

src/Shell/ShellCMD.cpp

@@ -51,7 +51,7 @@ public:
                         if(!media) {
                             break;
                         }
-                        if(!media->close()) {
+                        if(!media->close(true)) {
                             break;
                         }
                         (*stream) << "\t踢出成功:"
@@ -86,9 +86,12 @@ public:
     }
 };
 
-static onceToken s_token([]() {
+void installShellCMD(){
+    static onceToken s_token([]() {
         REGIST_CMD(media);
-}, nullptr);
+    }, nullptr);
+}
+
 
 
 } /* namespace mediakit */

src/Shell/ShellSession.cpp

@@ -33,7 +33,10 @@ using namespace toolkit;
 
 namespace mediakit {
 
+extern void installShellCMD();
+
 ShellSession::ShellSession(const Socket::Ptr &_sock) : TcpSession(_sock) {
+    installShellCMD();
     pleaseInputUser();
 }