diff --git a/trunk/research/players/jwplayer6.html b/trunk/research/players/jwplayer6.html
index b87c11c0f..6eb420f73 100755
--- a/trunk/research/players/jwplayer6.html
+++ b/trunk/research/players/jwplayer6.html
@@ -21,6 +21,7 @@
                 $("#div_container").remove();
                 _player.stop();
             });
+            
             $("#main_modal").on("show", function(){
                 $("#div_container").remove();
                 
@@ -42,6 +43,7 @@
                 };
                 _player = jwplayer('player_id').setup(conf);
             });
+            
             $("#main_modal").modal({show:true, keyboard:false});
         }
         
diff --git a/trunk/research/players/srs_player.html b/trunk/research/players/srs_player.html
index e5b9cc31a..321535d25 100755
--- a/trunk/research/players/srs_player.html
+++ b/trunk/research/players/srs_player.html
@@ -14,13 +14,26 @@
         }
     </style>
     <script type="text/javascript">
+        var srs_player = null;
+        
         $(function(){
             // get the vhost and port to set the default url.
             // for example: http://192.168.1.213/players/jwplayer6.html?port=1935&vhost=demo
             // url set to: rtmp://demo:1935/live/livestream
             srs_init($("#txt_url"));
             
-            var srs_player = null;
+            $("#btn_play").click(on_btn_play);
+            $("#btn_pause").click(function(){
+                if ($("#btn_pause").text() == "暂停") {
+                    $("#btn_pause").text("继续");
+                    srs_player.pause();
+                } else {
+                    $("#btn_pause").text("暂停");
+                    srs_player.resume();
+                }
+            });
+        });
+        function on_btn_play(){
             $("#main_modal").on("show", function(){
                 $("#div_container").remove();
                 
@@ -35,34 +48,23 @@
                 
                 var url = $("#txt_url").val();
                 
-                srs_player = new SrsPlayer("player_id", url, 530, 300);
+                srs_player = new SrsPlayer("player_id", url, 530, 300, 0.8);
                 srs_player.on_player_ready = function() {
-                    // hack the callback function, start to play the url.
+                    // hack the callback function, do something then play.
                     return srs_player.play();
                 }
                 srs_player.start();
             });
+            
             $("#main_modal").on("hide", function(){
                 srs_player.stop();
             });
             
-            $("#btn_play").click(on_btn_play);
-            $("#btn_pause").click(function(){
-                var _v = $("#btn_pause").text();
-                if (_v == "暂停") {
-                    $("#btn_pause").text("继续");
-                    srs_player.pause();
-                } else {
-                    $("#btn_pause").text("暂停");
-                    srs_player.resume();
-                }
-            });
-        });
-        function on_btn_play(){
             $("#main_modal").modal({show:true, keyboard:false});
         }
         
-        function SrsPlayer(container, stream_url, width, height) {
+        // the SrsPlayer object.
+        function SrsPlayer(container, stream_url, width, height, buffer_time) {
             if (!SrsPlayer.__id) {
                 SrsPlayer.__id = 100;
             }
@@ -76,9 +78,13 @@
             this.stream_url = stream_url;
             this.width = width;
             this.height = height;
+            this.buffer_time = buffer_time;
             this.id = SrsPlayer.__id++;
             this.callbackObj = null;
         }
+        // user can set some callback, then start the player.
+        // callbacks:
+        //      on_player_ready():int, when srs player ready, user can play.
         SrsPlayer.prototype.start = function() {
             // embed the flash.
             var flashvars = {};
@@ -105,7 +111,7 @@
             return this;
         }
         SrsPlayer.prototype.play = function() {
-            return this.callbackObj.ref.__play(this.stream_url, this.width, this.height);
+            return this.callbackObj.ref.__play(this.stream_url, this.width, this.height, this.buffer_time);
         }
         SrsPlayer.prototype.stop = function() {
             return this.callbackObj.ref.__stop();
diff --git a/trunk/research/players/srs_player/release/srs_player.swf b/trunk/research/players/srs_player/release/srs_player.swf
index 93d6f5655..d79fafd00 100755
Binary files a/trunk/research/players/srs_player/release/srs_player.swf and b/trunk/research/players/srs_player/release/srs_player.swf differ
diff --git a/trunk/research/players/srs_player/src/srs_player.as b/trunk/research/players/srs_player/src/srs_player.as
index 29d5609ab..a6ade0085 100755
--- a/trunk/research/players/srs_player/src/srs_player.as
+++ b/trunk/research/players/srs_player/src/srs_player.as
@@ -104,7 +104,7 @@ package
             return 0;
         }
         
-        public function js_call_play(url:String, _width:int, _height:int):int {
+        public function js_call_play(url:String, _width:int, _height:int, _buffer_time:Number):int {
             this.url = url;
             trace("start to play url: " + this.url);
             
@@ -120,6 +120,7 @@ package
                 }
                 
                 stream = new NetStream(conn);
+                stream.bufferTime = _buffer_time;
                 stream.client = {};
                 stream.client.onMetaData = function(metadata:Object):void {
                     var customItems:Array = [new ContextMenuItem("SrsPlayer")];