diff --git a/trunk/research/golang/fwriter.go b/trunk/research/golang/fwriter.go
new file mode 100644
index 000000000..53572bb41
--- /dev/null
+++ b/trunk/research/golang/fwriter.go
@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"io"
+	"net/http"
+)
+
+func main() {
+	fmt.Println("FileWriter web server, post to /api/v1/flv to temp.flv")
+	http.HandleFunc("/api/v1/flv", func(w http.ResponseWriter, r *http.Request){
+		defer r.Body.Close()
+
+		var f *os.File
+		var err error
+		if f,err = os.OpenFile("temp.flv", os.O_RDWR|os.O_APPEND|os.O_CREATE, os.ModePerm); err != nil {
+			return
+		}
+
+		var written int64
+		written,err = io.Copy(f, r.Body)
+		fmt.Println(fmt.Sprintf("write to file temp.flv, %v bytes", written))
+
+		if err != nil {
+			return
+		}
+	})
+	_ = http.ListenAndServe(fmt.Sprintf(":8088"), nil)
+}
\ No newline at end of file
diff --git a/trunk/research/players/srs_player.html b/trunk/research/players/srs_player.html
index ef567d23e..7e07c6732 100755
--- a/trunk/research/players/srs_player.html
+++ b/trunk/research/players/srs_player.html
@@ -564,7 +564,7 @@
         $("#main_modal").on("hide", function(){
             if (srs_player) {
                 // report the log to backend.
-                console.log(srs_player.dump_log());
+                //console.log(srs_player.dump_log());
 
                 srs_player.stop();
                 srs_player = null;
diff --git a/trunk/research/players/srs_player/src/Consts.as b/trunk/research/players/srs_player/src/Consts.as
new file mode 100644
index 000000000..6b13690d8
--- /dev/null
+++ b/trunk/research/players/srs_player/src/Consts.as
@@ -0,0 +1,11 @@
+package
+{
+	public class Consts
+	{
+		// refresh every ts_fragment_seconds*M3u8RefreshRatio
+		public static var M3u8RefreshRatio:Number = 0.5;
+		
+		// parse ts every this ms.
+		public static var TsParseAsyncInterval:Number = 80;
+	}
+}
\ No newline at end of file
diff --git a/trunk/research/players/srs_player/src/Hls.as b/trunk/research/players/srs_player/src/Hls.as
index 4dba8d1ff..d89ad74d3 100755
--- a/trunk/research/players/srs_player/src/Hls.as
+++ b/trunk/research/players/srs_player/src/Hls.as
@@ -155,7 +155,7 @@ package
                     nb_parsed += each_parse;
                     
                     if (nb_parsed < ts_packets) {
-                        flash.utils.setTimeout(aysncParse, 80);
+                        flash.utils.setTimeout(aysncParse, Consts.TsParseAsyncInterval);
                         return;
                     }
                     
diff --git a/trunk/research/players/srs_player/src/M3u8Player.as b/trunk/research/players/srs_player/src/M3u8Player.as
index db6d29386..d9f928bcf 100644
--- a/trunk/research/players/srs_player/src/M3u8Player.as
+++ b/trunk/research/players/srs_player/src/M3u8Player.as
@@ -16,7 +16,10 @@ package
     import flash.net.NetConnection;
     import flash.net.NetStream;
     import flash.net.NetStreamAppendBytesAction;
+    import flash.net.URLLoader;
+    import flash.net.URLLoaderDataFormat;
     import flash.net.URLRequest;
+    import flash.net.URLRequestMethod;
     import flash.net.URLStream;
     import flash.net.URLVariables;
     import flash.system.Security;
@@ -46,12 +49,8 @@ package
         private var hls:Hls = null; // parse m3u8 and ts
 		
 		// callback for hls.
-        private var shok:Boolean = false;
 		public var flvHeader:ByteArray = null;
 		public function onSequenceHeader():void {
-            if (shok) {
-                return;
-            }
 			if (!media_stream) {
 				setTimeout(onSequenceHeader, 1000);
 				return;
@@ -61,16 +60,30 @@ package
 			s.appendBytesAction(NetStreamAppendBytesAction.RESET_BEGIN);
 			s.appendBytes(flvHeader);
 			log("FLV: sps/pps " + flvHeader.length + " bytes");
-            shok = true;
+			
+			writeFlv(flvHeader);
 		}
-		public function onFlvBody(flv:ByteArray):void {
+		public function onFlvBody(uri:String, flv:ByteArray):void {
 			if (!media_stream) {
 				return;
 			}
 			
 			var s:NetStream = media_stream;
 			s.appendBytes(flv);
-			log("FLV: AV " + flv.length + " bytes");
+			log("FLV: ts " + uri + " parsed to flv " + flv.length + " bytes");
+			
+			writeFlv(flv);
+		}
+		private function writeFlv(data:ByteArray):void {
+            return;
+            
+			var r:URLRequest = new URLRequest("http://192.168.1.117:8088/api/v1/flv");
+			r.method = URLRequestMethod.POST;
+			r.data = data;
+			
+			var pf:URLLoader = new URLLoader();
+			pf.dataFormat = URLLoaderDataFormat.BINARY;
+			pf.load(r);
 		}
 
         public function M3u8Player(o:srs_player) {
@@ -178,7 +191,7 @@ package
             if (parsed_ts_seq_no >= hls.seq_no + hls.tsCount) {
                 var to:Number = 1000;
                 if (hls.tsCount > 0) {
-                    to = hls.duration * 1000 / hls.tsCount * 0.5;
+                    to = hls.duration * 1000 / hls.tsCount * Consts.M3u8RefreshRatio;
                 }
                 setTimeout(refresh_m3u8, to);
                 log("m3u8 not changed, retry after " + to.toFixed(2) + "ms");
@@ -208,8 +221,6 @@ package
 			
             download(uri, function(stream:ByteArray):void{
                 log("got ts seqno=" + parsed_ts_seq_no + ", " + stream.length + " bytes");
-                // reset and start to parse this ts.
-                hls.reset();
 
                 var flv:FlvPiece = new FlvPiece(parsed_ts_seq_no);
                 var body:ByteArray = new ByteArray();
@@ -217,7 +228,7 @@ package
                 hls.parseBodyAsync(flv, stream, body, function():void{
 					body.position = 0;
                     //log("ts parsed, seqno=" + parsed_ts_seq_no + ", flv=" + body.length + "B");
-					onFlvBody(body);
+					onFlvBody(uri, body);
                     
                     parsed_ts_seq_no++;
                     setTimeout(refresh_ts, 0);