diff --git a/demuxer.go b/demuxer.go
index 4eda814..08b1d37 100644
--- a/demuxer.go
+++ b/demuxer.go
@@ -11,15 +11,6 @@ import (
 	"io"
 )
 
-func Open(R io.Reader) (demuxer *Demuxer, err error) {
-	_demuxer := &Demuxer{R: R}
-	if err = _demuxer.ReadHeader(); err != nil {
-		return
-	}
-	demuxer = _demuxer
-	return
-}
-
 type Demuxer struct {
 	R io.Reader
 
diff --git a/handler.go b/handler.go
new file mode 100644
index 0000000..d940a48
--- /dev/null
+++ b/handler.go
@@ -0,0 +1,18 @@
+package ts
+
+import (
+	"io"
+	"github.com/nareix/av"
+	"github.com/nareix/av/avutil"
+)
+
+func Handler(h *avutil.RegisterHandler) {
+	h.Ext = ".ts"
+	h.ReaderDemuxer = func(r io.Reader) av.Demuxer {
+		return &Demuxer{R: r}
+	}
+	h.WriterMuxer = func(w io.Writer) av.Muxer {
+		return &Muxer{W: w}
+	}
+}
+
diff --git a/muxer.go b/muxer.go
index 7ab44e4..3a087b7 100644
--- a/muxer.go
+++ b/muxer.go
@@ -9,15 +9,6 @@ import (
 	"io"
 )
 
-func Create(W io.Writer, streams []av.CodecData) (muxer *Muxer, err error) {
-	_muxer := &Muxer{W: W}
-	if err = _muxer.WriteHeader(streams); err != nil {
-		return
-	}
-	muxer = _muxer
-	return
-}
-
 type Muxer struct {
 	W                        io.Writer
 	streams                  []*Stream
@@ -139,7 +130,7 @@ func (self *Muxer) WriteHeader(streams []av.CodecData) (err error) {
 }
 
 func (self *Muxer) WritePacket(pkt av.Packet) (err error) {
-	if true {
+	if false {
 		fmt.Println("ts:", "in", pkt.Idx, pkt.Time, "len", len(pkt.Data))
 	}
 	if err = self.writePacket(pkt); err != nil {