diff --git a/release/windows/Release/flv.lib b/release/windows/Release/flv.lib
deleted file mode 100644
index 15c1d208..00000000
Binary files a/release/windows/Release/flv.lib and /dev/null differ
diff --git a/src/Common/MediaSource.h b/src/Common/MediaSource.h
index 8a560997..a54bc8d8 100644
--- a/src/Common/MediaSource.h
+++ b/src/Common/MediaSource.h
@@ -186,6 +186,14 @@ 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/Rtmp/RtmpToRtspMediaSource.h b/src/Rtmp/RtmpToRtspMediaSource.h
index 98c059f2..4b8138b6 100644
--- a/src/Rtmp/RtmpToRtspMediaSource.h
+++ b/src/Rtmp/RtmpToRtspMediaSource.h
@@ -96,6 +96,17 @@ public:
     int readerCount() override {
         return RtmpMediaSource::readerCount() + (_muxer ? _muxer->readerCount() : 0);
     }
+
+	/**
+     * 获取track
+     * @return
+     */
+	vector<Track::Ptr> getTracks(bool trackReady) const override {
+		if(!_demuxer){
+			return this->RtmpMediaSource::getTracks(trackReady);
+		}
+		return _demuxer->getTracks(trackReady);
+	}
 private:
 	RtmpDemuxer::Ptr _demuxer;
 	MultiMediaSourceMuxer::Ptr _muxer;
diff --git a/src/Rtsp/RtspToRtmpMediaSource.h b/src/Rtsp/RtspToRtmpMediaSource.h
index c5a165e4..04980dff 100644
--- a/src/Rtsp/RtspToRtmpMediaSource.h
+++ b/src/Rtsp/RtspToRtmpMediaSource.h
@@ -88,6 +88,17 @@ public:
     int readerCount() override {
         return RtspMediaSource::readerCount() + (_muxer ? _muxer->readerCount() : 0);
     }
+
+    /**
+     * 获取track
+     * @return
+     */
+    vector<Track::Ptr> getTracks(bool trackReady) const override {
+        if(!_demuxer){
+            return this->RtspMediaSource::getTracks(trackReady);
+        }
+        return _demuxer->getTracks(trackReady);
+    }
 private:
     RtspDemuxer::Ptr _demuxer;
     MultiMediaSourceMuxer::Ptr _muxer;