diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 5d1925fd8..9d78a8516 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -1046,6 +1046,7 @@ vhost hls.srs.com {
         #       [999], replace this const to current millisecond.
         #       [timestamp],replace this const to current UNIX timestamp in ms.
         #       [seq], the sequence number of ts.
+        #       [duration], replace this const to current ts duration.
         # @see https://github.com/ossrs/srs/wiki/v2_CN_DVR#custom-path
         # @see https://github.com/ossrs/srs/wiki/v2_CN_DeliveryHLS#hls-config
         # default: [app]/[stream]-[seq].ts
diff --git a/trunk/src/app/srs_app_fragment.cpp b/trunk/src/app/srs_app_fragment.cpp
index 1c73307ab..f158078fd 100644
--- a/trunk/src/app/srs_app_fragment.cpp
+++ b/trunk/src/app/srs_app_fragment.cpp
@@ -28,6 +28,7 @@
 #include <srs_kernel_error.hpp>
 
 #include <unistd.h>
+#include <sstream>
 using namespace std;
 
 SrsFragment::SrsFragment()
@@ -126,11 +127,16 @@ srs_error_t SrsFragment::rename()
     
     string full_path = fullpath();
     string tmp_file = tmppath();
-    
+    int tempdur = (int)duration();
+    if (true) {
+	   std::stringstream ss;
+	   ss << tempdur;
+	   full_path = srs_string_replace(full_path, "[duration]", ss.str());
+    }
     if (::rename(tmp_file.c_str(), full_path.c_str()) < 0) {
         return srs_error_new(ERROR_SYSTEM_FRAGMENT_RENAME, "rename %s to %s", tmp_file.c_str(), full_path.c_str());
     }
-    
+    filepath = full_path;
     return err;
 }
 
diff --git a/trunk/src/app/srs_app_hls.cpp b/trunk/src/app/srs_app_hls.cpp
index f6dacc659..b9484705e 100644
--- a/trunk/src/app/srs_app_hls.cpp
+++ b/trunk/src/app/srs_app_hls.cpp
@@ -688,7 +688,14 @@ srs_error_t SrsHlsMuxer::_refresh_m3u8(string m3u8_file)
         ss << "#EXTINF:" << segment->duration() / 1000.0 << ", no desc" << SRS_CONSTS_LF;
         
         // {file name}\n
-        ss << segment->uri << SRS_CONSTS_LF;
+        std::string seg_uri = segment->uri;
+        if (true) {
+	        std::stringstream stemp;
+	        stemp << (int)(segment->duration());
+	        seg_uri = srs_string_replace(seg_uri, "[duration]", stemp.str());
+        }
+        //ss << segment->uri << SRS_CONSTS_LF;
+        ss << seg_uri << SRS_CONSTS_LF;
     }
     
     // write m3u8 to writer.
diff --git a/trunk/src/kernel/srs_kernel_utility.cpp b/trunk/src/kernel/srs_kernel_utility.cpp
index 1e4142ee5..13bbc68aa 100644
--- a/trunk/src/kernel/srs_kernel_utility.cpp
+++ b/trunk/src/kernel/srs_kernel_utility.cpp
@@ -546,7 +546,7 @@ int srs_do_create_dir_recursively(string dir)
     {
         int ret = srs_do_create_dir_recursively(dir);
         
-        if (ret == ERROR_SYSTEM_DIR_EXISTS) {
+        if (ret == ERROR_SYSTEM_DIR_EXISTS || ret == ERROR_SUCCESS) {
             return srs_success;
         }