diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index fdae7eeee..0fc164a46 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -322,7 +322,20 @@ vhost hooks.callback.srs.com {
         # support multiple api hooks, format:
         #       on_stop http://xxx/api0 http://xxx/api1 http://xxx/apiN
         on_stop         http://127.0.0.1:8085/api/v1/sessions http://localhost:8085/api/v1/sessions;
-        # when dvr got an keyframe, call the hook,
+        # when dvr got flv header, call the hook,
+        # the request in the POST data string is a object encode by json:
+        #       {
+        #           "action": "on_dvr_reap_flv",
+        #           "vhost": "video.test.com", "app": "live",
+        #           "stream": "livestream",
+        #           "segment": {
+        #               "cwd": "/usr/local/srs",
+        #               "path": "./objs/nginx/html/live/livestream.1398315892865.flv",
+        #               "duration": 1001, "offset":0,
+        #               "has_keyframe": true, "pts":1398315895958
+        #           }
+        #       }
+        # when dvr reap flv file, call the hook,
         # the request in the POST data string is a object encode by json:
         #       {
         #           "action": "on_dvr_reap_flv",
diff --git a/trunk/src/app/srs_app_dvr.cpp b/trunk/src/app/srs_app_dvr.cpp
index ff92ac3da..001b14ff8 100644
--- a/trunk/src/app/srs_app_dvr.cpp
+++ b/trunk/src/app/srs_app_dvr.cpp
@@ -804,9 +804,49 @@ void SrsDvrHssPlan::on_unpublish()
     dvr_enabled = false;
 }
 
-int SrsDvrHssPlan::on_meta_data(SrsOnMetaDataPacket* /*metadata*/)
+int SrsDvrHssPlan::on_meta_data(SrsOnMetaDataPacket* metadata)
 {
     int ret = ERROR_SUCCESS;
+    
+    SrsRequest* req = _req;
+    
+    // new flv file
+    std::stringstream path;
+    path << _srs_config->get_dvr_path(req->vhost)
+        << "/" << req->app << "/" 
+        << req->stream << ".header.flv";
+        
+    SrsFileStream fs;
+    if ((ret = fs.open(path.str().c_str())) != ERROR_SUCCESS) {
+        return ret;
+    }
+    
+    SrsFlvEncoder enc;
+    if ((ret = enc.initialize(&fs)) != ERROR_SUCCESS) {
+        return ret;
+    }
+    
+    if ((ret = enc.write_header()) != ERROR_SUCCESS) {
+        return ret;
+    }
+    
+    int size = 0;
+    char* payload = NULL;
+    if ((ret = metadata->encode(size, payload)) != ERROR_SUCCESS) {
+        return ret;
+    }
+    SrsAutoFree(char, payload, true);
+    
+    if ((ret = enc.write_metadata(payload, size)) != ERROR_SUCCESS) {
+        return ret;
+    }
+    
+#ifdef SRS_AUTO_HTTP_CALLBACK
+    if ((ret = on_dvr_reap_flv_header(path.str())) != ERROR_SUCCESS) {
+        return ret;
+    }
+#endif
+    
     return ret;
 }
 
@@ -842,6 +882,27 @@ int64_t SrsDvrHssPlan::filter_timestamp(int64_t timestamp)
     return segment->stream_starttime + timestamp;
 }
 
+int SrsDvrHssPlan::on_dvr_reap_flv_header(string path)
+{
+    int ret = ERROR_SUCCESS;
+    
+#ifdef SRS_AUTO_HTTP_CALLBACK
+    // HTTP: on_dvr_reap_flv_header 
+    SrsConfDirective* on_dvr_reap_flv = _srs_config->get_vhost_on_dvr_reap_flv(_req->vhost);
+    if (!on_dvr_reap_flv) {
+        srs_info("ignore the empty http callback: on_dvr_reap_flv");
+        return ret;
+    }
+    
+    for (int i = 0; i < (int)on_dvr_reap_flv->args.size(); i++) {
+        std::string url = on_dvr_reap_flv->args.at(i);
+        SrsHttpHooks::on_dvr_reap_flv_header(url, _req, path);
+    }
+#endif
+    
+    return ret;
+}
+
 int SrsDvrHssPlan::update_duration(SrsSharedPtrMessage* msg)
 {
     int ret = ERROR_SUCCESS;
diff --git a/trunk/src/app/srs_app_dvr.hpp b/trunk/src/app/srs_app_dvr.hpp
index e4041d468..bc6b7f081 100644
--- a/trunk/src/app/srs_app_dvr.hpp
+++ b/trunk/src/app/srs_app_dvr.hpp
@@ -259,6 +259,7 @@ protected:
     virtual int on_video_keyframe();
     virtual int64_t filter_timestamp(int64_t timestamp);
 private:
+    virtual int on_dvr_reap_flv_header(std::string path);
     virtual int update_duration(SrsSharedPtrMessage* msg);
 };
 
diff --git a/trunk/src/app/srs_app_http_hooks.cpp b/trunk/src/app/srs_app_http_hooks.cpp
index d5cc8ba6e..996e77337 100644
--- a/trunk/src/app/srs_app_http_hooks.cpp
+++ b/trunk/src/app/srs_app_http_hooks.cpp
@@ -459,6 +459,55 @@ void SrsHttpHooks::on_stop(string url, int client_id, string ip, SrsRequest* req
     return;
 }
 
+void SrsHttpHooks::on_dvr_reap_flv_header(std::string url, SrsRequest* req, std::string header_file)
+{
+    int ret = ERROR_SUCCESS;
+    
+    srs_verbose("flv header reap, file=%s", header_file.c_str());
+    
+    SrsHttpUri uri;
+    if ((ret = uri.initialize(url)) != ERROR_SUCCESS) {
+        srs_warn("http uri parse on_dvr_reap_flv_header url failed, ignored. "
+            "url=%s, ret=%d", url.c_str(), ret);
+        return;
+    }
+    
+    std::stringstream ss;
+    ss << JOBJECT_START
+        << JFIELD_STR("action", "on_dvr_reap_flv_header") << JFIELD_CONT
+        << JFIELD_STR("vhost", req->vhost) << JFIELD_CONT
+        << JFIELD_STR("app", req->app) << JFIELD_CONT
+        << JFIELD_STR("stream", req->stream) << JFIELD_CONT
+        << JFIELD_NAME("segment") << JOBJECT_START
+            << JFIELD_STR("cwd", _srs_config->get_cwd()) << JFIELD_CONT
+            << JFIELD_STR("path", header_file)
+        << JOBJECT_END
+        << JOBJECT_END;
+    std::string data = ss.str();
+    std::string res;
+    
+    SrsHttpClient http;
+    if ((ret = http.post(&uri, data, res)) != ERROR_SUCCESS) {
+        srs_warn("http post on_dvr_reap_flv_header uri failed, ignored. "
+            "url=%s, request=%s, response=%s, ret=%d",
+            url.c_str(), data.c_str(), res.c_str(), ret);
+        return;
+    }
+    
+    if (res.empty() || res != SRS_HTTP_RESPONSE_OK) {
+        ret = ERROR_HTTP_DATA_INVLIAD;
+        srs_warn("http hook on_dvr_reap_flv_header validate failed, ignored. "
+            "res=%s, ret=%d", res.c_str(), ret);
+        return;
+    }
+    
+    srs_info("http hook on_dvr_reap_flv_header success. "
+        "url=%s, request=%s, response=%s, ret=%d",
+        url.c_str(), data.c_str(), res.c_str(), ret);
+    
+    return;
+}
+
 void SrsHttpHooks::on_dvr_reap_flv(string url, SrsRequest* req, SrsFlvSegment* segment)
 {
     int ret = ERROR_SUCCESS;
diff --git a/trunk/src/app/srs_app_http_hooks.hpp b/trunk/src/app/srs_app_http_hooks.hpp
index a8eaeb2e6..70cb302a6 100644
--- a/trunk/src/app/srs_app_http_hooks.hpp
+++ b/trunk/src/app/srs_app_http_hooks.hpp
@@ -123,6 +123,13 @@ public:
     */
     static void on_stop(std::string url, int client_id, std::string ip, SrsRequest* req);
 public:
+    /**
+    * on_dvr_reap_flv_header hook, when dvr write flv file header.
+    * @param url the api server url, to process the event. 
+    *         ignore if empty.
+    * @param header_file the flv header file.
+    */
+    static void on_dvr_reap_flv_header(std::string url, SrsRequest* req, std::string header_file);
     /**
     * on_dvr_reap_flv hook, when dvr close flv file.
     * @param url the api server url, to process the event.