diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index 14c6a61c07de70c500d52cc37c0aa58853921b39..0c6e54512ca42590e18c40117bb9eea19ac626d2 100755
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -357,6 +357,7 @@ Value makeMediaSourceJson(MediaSource &media){
             }
             case TrackVideo : {
                 auto video_track = dynamic_pointer_cast<VideoTrack>(track);
+                video_track->flush();
                 obj["width"] = video_track->getVideoWidth();
                 obj["height"] = video_track->getVideoHeight();
                 obj["fps"] = round(video_track->getVideoFps());
diff --git a/src/Extension/H264.cpp b/src/Extension/H264.cpp
index 3426f5cc955e261ff11d9e11c189befbdba05f8b..4587f0be57de41ff4c1f4eb2be8be24ed6950526 100644
--- a/src/Extension/H264.cpp
+++ b/src/Extension/H264.cpp
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -142,6 +142,17 @@ float H264Track::getVideoFps() const {
     return _fps;
 }
 
+void H264Track::flush() const {
+    int w = 0;
+    int h = 0;
+    float fps = 0.0;
+    if(getAVCInfo(_sps, w, h, fps)){
+        _width = w;
+        _height = h;
+        _fps = fps;
+    }
+}
+
 bool H264Track::ready() {
     return !_sps.empty() && !_pps.empty();
 }
diff --git a/src/Extension/H264.h b/src/Extension/H264.h
index 4f7a3e90bfd27135851a7caf2feb1fd05c097346..3a202b5478239ae8422ee003b23e8ac320c325fa 100644
--- a/src/Extension/H264.h
+++ b/src/Extension/H264.h
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -128,6 +128,7 @@ public:
     int getVideoHeight() const override;
     int getVideoWidth() const override;
     float getVideoFps() const override;
+    void flush()  override;
     bool inputFrame(const Frame::Ptr &frame) override;
 
 private:
diff --git a/src/Extension/H265.cpp b/src/Extension/H265.cpp
index 8877371deaf5adadfad82a4e687263dc286b3845..6c610c96eaede052a8a774a3f6c57ffcc028d43e 100644
--- a/src/Extension/H265.cpp
+++ b/src/Extension/H265.cpp
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -88,6 +88,17 @@ float H265Track::getVideoFps() const {
     return _fps;
 }
 
+void H265Track::flush()  {
+    int w = 0;
+    int h = 0;
+    float fps = 0.0;
+    if(getHEVCInfo(_vps,_sps, w, h, fps)){
+        _width = w;
+        _height = h;
+        _fps = fps;
+    }
+}
+
 bool H265Track::ready() {
     return !_vps.empty() && !_sps.empty() && !_pps.empty();
 }
diff --git a/src/Extension/H265.h b/src/Extension/H265.h
index 59913c81d6472c0fa33131c468937d20ba416179..a1b24375ded90b605b8f5a87e5f6f9b194e63fda 100644
--- a/src/Extension/H265.h
+++ b/src/Extension/H265.h
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -150,6 +150,7 @@ public:
     int getVideoWidth() const override;
     int getVideoHeight() const override;
     float getVideoFps() const override;
+    void flush()  override;
     bool inputFrame(const Frame::Ptr &frame) override;
 
 private:
diff --git a/src/Extension/Track.h b/src/Extension/Track.h
index 0bada492a3e4346d4e88076f97cc0b5fe06e2109..d09c989a0d86b64b9b444026ccc26b80371893a9 100644
--- a/src/Extension/Track.h
+++ b/src/Extension/Track.h
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
@@ -92,6 +92,12 @@ public:
      * 返回视频fps
      */
     virtual float getVideoFps() const {return 0;};
+
+    /**
+     * 刷新宽高帧率
+     */
+	
+	virtual void  flush()   {return;};
 };
 
 /**