diff --git a/pkg/webrtc/conn.go b/pkg/webrtc/conn.go
index f853bf43..063831f0 100644
--- a/pkg/webrtc/conn.go
+++ b/pkg/webrtc/conn.go
@@ -161,21 +161,21 @@ func (c *Conn) AddCandidate(candidate string) error {
 	return c.pc.AddICECandidate(webrtc.ICECandidateInit{Candidate: candidate})
 }
 
-func (c *Conn) GetSenderTrack(mid string) *Track {
-	if tr := c.getTranseiver(mid); tr != nil {
-		if s := tr.Sender(); s != nil {
-			if t := s.Track().(*Track); t != nil {
-				return t
-			}
+func (c *Conn) getTranseiver(mid string) *webrtc.RTPTransceiver {
+	for _, tr := range c.pc.GetTransceivers() {
+		if tr.Mid() == mid {
+			return tr
 		}
 	}
 	return nil
 }
 
-func (c *Conn) getTranseiver(mid string) *webrtc.RTPTransceiver {
-	for _, tr := range c.pc.GetTransceivers() {
-		if tr.Mid() == mid {
-			return tr
+func (c *Conn) getSenderTrack(mid string) *Track {
+	if tr := c.getTranseiver(mid); tr != nil {
+		if s := tr.Sender(); s != nil {
+			if t := s.Track().(*Track); t != nil {
+				return t
+			}
 		}
 	}
 	return nil
@@ -209,7 +209,7 @@ func (c *Conn) getMediaCodec(remote *webrtc.TrackRemote) (*core.Media, *core.Cod
 	// check GetTrack
 	panic(core.Caller())
 
-	// return nil, nil
+	return nil, nil
 }
 
 func sanitizeIP6(host string) string {
@@ -217,4 +217,4 @@ func sanitizeIP6(host string) string {
 		return "[" + host + "]"
 	}
 	return host
-}
+}
\ No newline at end of file
diff --git a/pkg/webrtc/consumer.go b/pkg/webrtc/consumer.go
index 767394df..1efb1507 100644
--- a/pkg/webrtc/consumer.go
+++ b/pkg/webrtc/consumer.go
@@ -32,7 +32,7 @@ func (c *Conn) AddTrack(media *core.Media, codec *core.Codec, track *core.Receiv
 		panic(core.Caller())
 	}
 
-	localTrack := c.GetSenderTrack(media.ID)
+	localTrack := c.getSenderTrack(media.ID)
 	if localTrack == nil {
 		return errors.New("webrtc: can't get track")
 	}
@@ -87,4 +87,4 @@ func (c *Conn) AddTrack(media *core.Media, codec *core.Codec, track *core.Receiv
 
 	c.Senders = append(c.Senders, sender)
 	return nil
-}
+}
\ No newline at end of file