修复无人播放事件触发延时不准确的bug

.gitignore

@@ -44,3 +44,4 @@
 /3rdpart/media-server/.idea/
 /build/
 /3rdpart/media-server/.idea/
+/ios/

api/source/mk_media.cpp

@@ -71,15 +71,6 @@ protected:
         return true;
     }
 
-    // 通知无人观看
-    void onNoneReader(MediaSource &sender) override{
-        if(_channel->totalReaderCount()){
-            //统计有误，还有人在看
-            return;
-        }
-        MediaSourceEvent::onNoneReader(sender);
-    }
-
     // 观看总人数
     int totalReaderCount(MediaSource &sender) override{
         return _channel->totalReaderCount();

server/FFmpegSource.cpp

@@ -236,21 +236,12 @@ bool FFmpegSource::close(MediaSource &sender, bool force) {
     return true;
 }
 
-void FFmpegSource::onNoneReader(MediaSource &sender) {
-    auto listener = _listener.lock();
-    if(listener){
-        listener->onNoneReader(sender);
-    }else{
-        MediaSourceEvent::onNoneReader(sender);
-    }
-}
-
 int FFmpegSource::totalReaderCount(MediaSource &sender) {
     auto listener = _listener.lock();
     if(listener){
         return listener->totalReaderCount(sender);
     }
-    return 0;
+    return sender.readerCount();
 }
 
 void FFmpegSource::onGetMediaSource(const MediaSource::Ptr &src) {

server/FFmpegSource.h

@@ -59,7 +59,6 @@ private:
 
     //MediaSourceEvent override
     bool close(MediaSource &sender,bool force) override;
-    void onNoneReader(MediaSource &sender) override ;
     int totalReaderCount(MediaSource &sender) override;
 private:
     Process _process;

src/Common/MediaSource.cpp

@@ -117,7 +117,9 @@ void MediaSource::onNoneReader(){
     if(!listener){
         return;
     }
-    listener->onNoneReader(*this);
+    if (listener->totalReaderCount(*this) == 0) {
+        listener->onNoneReader(*this);
+    }
 }
 
 void MediaSource::for_each_media(const function<void(const MediaSource::Ptr &src)> &cb) {
@@ -382,16 +384,31 @@ void MediaInfo::parse(const string &url){
 
 void MediaSourceEvent::onNoneReader(MediaSource &sender){
     //没有任何读取器消费该源，表明该源可以关闭了
-    WarnL << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId();
-    weak_ptr<MediaSource> weakPtr = sender.shared_from_this();
-
-    //异步广播该事件，防止同步调用sender.close()导致在接收rtp或rtmp包时清空包缓存等操作
-    EventPollerPool::Instance().getPoller()->async([weakPtr](){
-        auto strongPtr = weakPtr.lock();
-        if(strongPtr){
-            NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastStreamNoneReader,*strongPtr);
+    GET_CONFIG(int, stream_none_reader_delay, General::kStreamNoneReaderDelayMS);
+
+    weak_ptr<MediaSource> weakSender = sender.shared_from_this();
+    _async_close_timer = std::make_shared<Timer>(stream_none_reader_delay / 1000.0, [weakSender]() {
+        auto strongSender = weakSender.lock();
+        if (!strongSender) {
+            //对象已经销毁
+            return false;
+        }
+
+        if (strongSender->totalReaderCount() != 0) {
+            //还有人消费
+            return false;
         }
-    },false);
+
+        WarnL << "onNoneReader:"
+              << strongSender->getSchema() << "/"
+              << strongSender->getVhost() << "/"
+              << strongSender->getApp() << "/"
+              << strongSender->getId();
+
+        //触发消息广播
+        NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastStreamNoneReader, *strongSender);
+        return false;
+    }, nullptr);
 }
 
 

src/Common/MediaSource.h

@@ -52,24 +52,21 @@ namespace mediakit {
 class MediaSource;
 class MediaSourceEvent{
 public:
+    friend class MediaSource;
     MediaSourceEvent(){};
     virtual ~MediaSourceEvent(){};
 
     // 通知拖动进度条
-    virtual bool seekTo(MediaSource &sender,uint32_t ui32Stamp){
-        return false;
-    }
-
+    virtual bool seekTo(MediaSource &sender,uint32_t ui32Stamp){ return false; }
     // 通知其停止推流
-    virtual bool close(MediaSource &sender,bool force) {
-        return false;
-    }
-
-    // 通知无人观看
-    virtual void onNoneReader(MediaSource &sender);
-
+    virtual bool close(MediaSource &sender,bool force) { return false;}
     // 观看总人数
     virtual int totalReaderCount(MediaSource &sender) = 0;
+private:
+    // 通知无人观看
+    void onNoneReader(MediaSource &sender);
+private:
+    Timer::Ptr _async_close_timer;
 };
 
 /**

src/Player/PlayerProxy.cpp

@@ -196,13 +196,6 @@ bool PlayerProxy::close(MediaSource &sender,bool force) {
     return true;
 }
 
-void PlayerProxy::onNoneReader(MediaSource &sender) {
-    if(!_mediaMuxer || totalReaderCount()){
-        return;
-    }
-    MediaSourceEvent::onNoneReader(sender);
-}
-
 int PlayerProxy::totalReaderCount(){
     return (_mediaMuxer ? _mediaMuxer->totalReaderCount() : 0) + (_pMediaSrc ? _pMediaSrc->readerCount() : 0);
 }

src/Player/PlayerProxy.h

@@ -83,7 +83,6 @@ public:
 private:
     //MediaSourceEvent override
     bool close(MediaSource &sender,bool force) override;
-    void onNoneReader(MediaSource &sender) override;
     int totalReaderCount(MediaSource &sender) override;
     void rePlay(const string &strUrl,int iFailedCnt);
     void onPlaySuccess();

src/Record/HlsMediaSource.h

@@ -79,7 +79,7 @@ private:
             return;
         }
 
-        if (--_readerCount == 0 && totalReaderCount() == 0) {
+        if (--_readerCount == 0) {
             onNoneReader();
         }
     }

src/Record/MP4Reader.cpp

@@ -190,13 +190,6 @@ bool MP4Reader::close(MediaSource &sender,bool force){
     return true;
 }
 
-void MP4Reader::onNoneReader(MediaSource &sender) {
-    if(!_mediaMuxer || _mediaMuxer->totalReaderCount()){
-        return;
-    }
-    MediaSourceEvent::onNoneReader(sender);
-}
-
 int MP4Reader::totalReaderCount(MediaSource &sender) {
     return _mediaMuxer ? _mediaMuxer->totalReaderCount() : sender.readerCount();
 }

src/Record/MP4Reader.h

@@ -77,7 +77,6 @@ private:
     //MediaSourceEvent override
     bool seekTo(MediaSource &sender,uint32_t ui32Stamp) override;
     bool close(MediaSource &sender,bool force) override;
-    void onNoneReader(MediaSource &sender) override;
     int totalReaderCount(MediaSource &sender) override;
 #ifdef ENABLE_MP4V2
     void seek(uint32_t iSeekTime,bool bReStart = true);

src/Rtmp/RtmpMediaSource.h

@@ -161,7 +161,6 @@ public:
         _track_stamps_map[pkt->typeId] = pkt->timeStamp;
         //不存在视频，为了减少缓存延时，那么关闭GOP缓存
         _ring->write(pkt, _have_video ? pkt->isVideoKeyFrame() : true);
-        checkNoneReader();
     }
 
     /**
@@ -184,33 +183,15 @@ private:
      * 每次增减消费者都会触发该函数
      */
     void onReaderChanged(int size) {
-        //我们记录最后一次活动时间
-        _reader_changed_ticker.resetTime();
-        if (size != 0 || totalReaderCount() != 0) {
-            //还有消费者正在观看该流
-            _async_emit_none_reader = false;
-            return;
-        }
-        _async_emit_none_reader = true;
-    }
-
-    /**
-     * 检查是否无人消费该流，
-     * 如果无人消费且超过一定时间会触发onNoneReader事件
-     */
-    void checkNoneReader() {
-        GET_CONFIG(int, stream_none_reader_delay, General::kStreamNoneReaderDelayMS);
-        if (_async_emit_none_reader && _reader_changed_ticker.elapsedTime() > stream_none_reader_delay) {
-            _async_emit_none_reader = false;
+        if (size == 0) {
             onNoneReader();
         }
     }
-protected:
+
+private:
     int _ring_size;
-    bool _async_emit_none_reader = false;
     bool _have_video = false;
     mutable recursive_mutex _mtx;
-    Ticker _reader_changed_ticker;
     AMFValue _metadata;
     RingBuffer<RtmpPacket::Ptr>::Ptr _ring;
     unordered_map<int, uint32_t> _track_stamps_map;

src/Rtmp/RtmpSession.cpp

@@ -544,14 +544,6 @@ bool RtmpSession::close(MediaSource &sender,bool force)  {
     return true;
 }
 
-void RtmpSession::onNoneReader(MediaSource &sender) {
-    //此回调在其他线程触发
-    if(!_pPublisherSrc || _pPublisherSrc->totalReaderCount()){
-        return;
-    }
-    MediaSourceEvent::onNoneReader(sender);
-}
-
 int RtmpSession::totalReaderCount(MediaSource &sender) {
     return _pPublisherSrc ? _pPublisherSrc->totalReaderCount() : sender.readerCount();
 }

src/Rtmp/RtmpSession.h

@@ -85,7 +85,6 @@ private:
 
     //MediaSourceEvent override
     bool close(MediaSource &sender,bool force) override ;
-    void onNoneReader(MediaSource &sender) override;
     int totalReaderCount(MediaSource &sender) override;
 
     void setSocketFlags();

src/Rtp/RtpSelector.cpp

@@ -142,13 +142,6 @@ bool RtpProcessHelper::close(MediaSource &sender, bool force) {
     return true;
 }
 
-void RtpProcessHelper::onNoneReader(MediaSource &sender) {
-    if(!_process || _process->totalReaderCount()){
-        return;
-    }
-    MediaSourceEvent::onNoneReader(sender);
-}
-
 int RtpProcessHelper::totalReaderCount(MediaSource &sender) {
     return _process ? _process->totalReaderCount() : sender.totalReaderCount();
 }

src/Rtp/RtpSelector.h

@@ -47,8 +47,6 @@ public:
 protected:
     // 通知其停止推流
     bool close(MediaSource &sender,bool force) override;
-    // 通知无人观看
-    void onNoneReader(MediaSource &sender) override;
     // 观看总人数
     int totalReaderCount(MediaSource &sender) override;
 private:

src/Rtp/RtpSession.cpp

@@ -87,14 +87,6 @@ bool RtpSession::close(MediaSource &sender, bool force) {
     return true;
 }
 
-void RtpSession::onNoneReader(MediaSource &sender) {
-    //此回调在其他线程触发
-    if(!_process || _process->totalReaderCount()){
-        return;
-    }
-    MediaSourceEvent::onNoneReader(sender);
-}
-
 int RtpSession::totalReaderCount(MediaSource &sender) {
     //此回调在其他线程触发
     return _process ? _process->totalReaderCount() : sender.totalReaderCount();

src/Rtp/RtpSession.h

@@ -46,8 +46,6 @@ public:
 protected:
     // 通知其停止推流
     bool close(MediaSource &sender,bool force) override;
-    // 通知无人观看
-    void onNoneReader(MediaSource &sender) override;
     // 观看总人数
     int totalReaderCount(MediaSource &sender) override;
     void onRtpPacket(const char *data,uint64_t len) override;

src/Rtsp/RtspMediaSource.h

@@ -191,39 +191,19 @@ public:
         }
         //不存在视频，为了减少缓存延时，那么关闭GOP缓存
         _ring->write(rtp, _have_video ? keyPos : true);
-        checkNoneReader();
     }
 private:
     /**
      * 每次增减消费者都会触发该函数
      */
     void onReaderChanged(int size) {
-        //我们记录最后一次活动时间
-        _reader_changed_ticker.resetTime();
-        if (size != 0 || totalReaderCount() != 0) {
-            //还有消费者正在观看该流
-            _async_emit_none_reader = false;
-            return;
-        }
-        _async_emit_none_reader = true;
-    }
-
-    /**
-     * 检查是否无人消费该流，
-     * 如果无人消费且超过一定时间会触发onNoneReader事件
-     */
-    void checkNoneReader() {
-        GET_CONFIG(int, stream_none_reader_delay, General::kStreamNoneReaderDelayMS);
-        if (_async_emit_none_reader && _reader_changed_ticker.elapsedTime() > stream_none_reader_delay) {
-            _async_emit_none_reader = false;
+        if (size == 0) {
             onNoneReader();
         }
     }
-protected:
+private:
     int _ring_size;
-    bool _async_emit_none_reader = false;
     bool _have_video = false;
-    Ticker _reader_changed_ticker;
     SdpParser _sdp_parser;
     string _sdp;
     RingType::Ptr _ring;

src/Rtsp/RtspSession.cpp

@@ -1135,15 +1135,6 @@ bool RtspSession::close(MediaSource &sender,bool force) {
     return true;
 }
 
-
-void RtspSession::onNoneReader(MediaSource &sender){
-    //此回调在其他线程触发
-    if(!_pushSrc || _pushSrc->totalReaderCount()){
-        return;
-    }
-    MediaSourceEvent::onNoneReader(sender);
-}
-
 int RtspSession::totalReaderCount(MediaSource &sender) {
     return _pushSrc ? _pushSrc->totalReaderCount() : sender.readerCount();
 }

src/Rtsp/RtspSession.h

@@ -107,7 +107,6 @@ protected:
     void onRtpSorted(const RtpPacket::Ptr &rtppt, int trackidx) override;
     //MediaSourceEvent override
     bool close(MediaSource &sender,bool force) override ;
-    void onNoneReader(MediaSource &sender) override;
     int totalReaderCount(MediaSource &sender) override;
 
     //TcpSession override