diff --git a/trunk/src/app/srs_app_hls.cpp b/trunk/src/app/srs_app_hls.cpp
index c058666b8..8f6451c69 100644
--- a/trunk/src/app/srs_app_hls.cpp
+++ b/trunk/src/app/srs_app_hls.cpp
@@ -458,7 +458,7 @@ srs_error_t SrsHlsMuxer::segment_open()
     
     // open temp ts file.
     std::string tmp_file = current->tmppath();
-    if ((err = current->tscw->open(tmp_file.c_str())) != srs_success) {
+    if ((err = current->writer->open(tmp_file)) != srs_success) {
         return srs_error_wrap(err, "open hls muxer");
     }
     
diff --git a/trunk/src/kernel/srs_kernel_ts.cpp b/trunk/src/kernel/srs_kernel_ts.cpp
index cffd67cda..de7dd5b79 100644
--- a/trunk/src/kernel/srs_kernel_ts.cpp
+++ b/trunk/src/kernel/srs_kernel_ts.cpp
@@ -2554,28 +2554,6 @@ SrsTsContextWriter::SrsTsContextWriter(ISrsStreamWriter* w, SrsTsContext* c, Srs
 
 SrsTsContextWriter::~SrsTsContextWriter()
 {
-    close();
-}
-
-srs_error_t SrsTsContextWriter::open(string p)
-{
-    srs_error_t err = srs_success;
-    
-    path = p;
-    
-    close();
-    
-    // reset the context for a new ts start.
-    context->reset();
-    
-    SrsFileWriter* fw = dynamic_cast<SrsFileWriter*>(writer);
-    srs_assert(fw);
-    
-    if ((err = fw->open(path)) != srs_success) {
-        return srs_error_wrap(err, "ts: open writer");
-    }
-    
-    return err;
 }
 
 srs_error_t SrsTsContextWriter::write_audio(SrsTsMessage* audio)
@@ -2608,14 +2586,6 @@ srs_error_t SrsTsContextWriter::write_video(SrsTsMessage* video)
     return err;
 }
 
-void SrsTsContextWriter::close()
-{
-    SrsFileWriter* fw = dynamic_cast<SrsFileWriter*>(writer);
-    srs_assert(fw);
-    
-    fw->close();
-}
-
 SrsVideoCodecId SrsTsContextWriter::video_codec()
 {
     return vcodec;
@@ -3033,10 +3003,6 @@ srs_error_t SrsTsTransmuxer::initialize(ISrsStreamWriter* fw)
     // TODO: FIXME: Support config the codec.
     tscw = new SrsTsContextWriter(fw, context, SrsAudioCodecIdAAC, SrsVideoCodecIdAVC);
     
-    if ((err = tscw->open("")) != srs_success) {
-        return srs_error_wrap(err, "ts: open writer");
-    }
-    
     return err;
 }
 
diff --git a/trunk/src/kernel/srs_kernel_ts.hpp b/trunk/src/kernel/srs_kernel_ts.hpp
index e2e1e523a..c31dd4eb2 100644
--- a/trunk/src/kernel/srs_kernel_ts.hpp
+++ b/trunk/src/kernel/srs_kernel_ts.hpp
@@ -1549,11 +1549,6 @@ public:
     SrsTsContextWriter(ISrsStreamWriter* w, SrsTsContext* c, SrsAudioCodecId ac, SrsVideoCodecId vc);
     virtual ~SrsTsContextWriter();
 public:
-    /**
-     * open the writer, donot write the PSI of ts.
-     * @param p a string indicates the path of ts file to mux to.
-     */
-    virtual srs_error_t open(std::string p);
     /**
      * write an audio frame to ts,
      */
@@ -1562,10 +1557,6 @@ public:
      * write a video frame to ts,
      */
     virtual srs_error_t write_video(SrsTsMessage* video);
-    /**
-     * close the writer.
-     */
-    virtual void close();
 public:
     /**
      * get the video codec of ts muxer.