diff --git a/stream/flv/encoder.go b/stream/flv/encoder.go
index c9281873..21562f98 100644
--- a/stream/flv/encoder.go
+++ b/stream/flv/encoder.go
@@ -57,11 +57,10 @@ var (
 type Encoder struct {
 	dst io.Writer
 
-	fps    int
-	audio  bool
-	video  bool
-	header Header
-	start  time.Time
+	fps   int
+	audio bool
+	video bool
+	start time.Time
 }
 
 // NewEncoder retuns a new FLV encoder.
@@ -72,20 +71,7 @@ func NewEncoder(dst io.Writer, audio, video bool, fps int) (*Encoder, error) {
 		audio: audio,
 		video: video,
 	}
-	_, err := dst.Write(e.HeaderBytes())
-	if err != nil {
-		return nil, err
-	}
-	return &e, err
-}
-
-// HeaderBytes returns the a
-func (e *Encoder) HeaderBytes() []byte {
-	header := Header{
-		HasAudio: e.audio,
-		HasVideo: e.video,
-	}
-	return header.Bytes()
+	return &e, nil
 }
 
 // getNextTimestamp generates and returns the next timestamp based on current time
diff --git a/stream/flv/flv.go b/stream/flv/flv.go
index 293b89f8..8ae7e050 100644
--- a/stream/flv/flv.go
+++ b/stream/flv/flv.go
@@ -71,25 +71,6 @@ func orderPutUint24(b []byte, v uint32) {
 	b[2] = byte(v)
 }
 
-var flvHeaderCode = []byte{'F', 'L', 'V', version}
-
-type Header struct {
-	HasAudio bool
-	HasVideo bool
-}
-
-func (h *Header) Bytes() []byte {
-	// See https://download.macromedia.com/f4v/video_file_format_spec_v10_1.pdf
-	// section E.2.
-	const headerLength = 9
-	b := [headerLength]byte{
-		0: 'F', 1: 'L', 2: 'V', 3: version,
-		4: btb(h.HasAudio)<<2 | btb(h.HasVideo),
-		8: headerLength, // order.PutUint32(b[5:9], headerLength)
-	}
-	return b[:]
-}
-
 type VideoTag struct {
 	TagType           uint8
 	DataSize          uint32