diff --git a/pkg/rtsp/base_in_session.go b/pkg/rtsp/base_in_session.go
index 07a923f..47d1439 100644
--- a/pkg/rtsp/base_in_session.go
+++ b/pkg/rtsp/base_in_session.go
@@ -116,10 +116,10 @@ func (s *BaseInSession) SetObserver(observer BaseInSessionObserver) {
 }
 
 func (s *BaseInSession) SetupWithConn(uri string, rtpConn, rtcpConn *nazanet.UDPConnection) error {
-	if strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
+	if s.sdpLogicCtx.AudioAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
 		s.audioRTPConn = rtpConn
 		s.audioRTCPConn = rtcpConn
-	} else if strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
+	} else if s.sdpLogicCtx.VideoAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
 		s.videoRTPConn = rtpConn
 		s.videoRTCPConn = rtcpConn
 	} else {
@@ -133,12 +133,11 @@ func (s *BaseInSession) SetupWithConn(uri string, rtpConn, rtcpConn *nazanet.UDP
 }
 
 func (s *BaseInSession) SetupWithChannel(uri string, rtpChannel, rtcpChannel int) error {
-	if strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
+	if s.sdpLogicCtx.AudioAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
 		s.audioRTPChannel = rtpChannel
 		s.audioRTCPChannel = rtcpChannel
 		return nil
-	}
-	if strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
+	} else if s.sdpLogicCtx.VideoAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
 		s.videoRTPChannel = rtpChannel
 		s.videoRTCPChannel = rtcpChannel
 		return nil
diff --git a/pkg/rtsp/server_sub_session.go b/pkg/rtsp/server_sub_session.go
index 3b72ffe..3958cac 100644
--- a/pkg/rtsp/server_sub_session.go
+++ b/pkg/rtsp/server_sub_session.go
@@ -76,10 +76,10 @@ func (s *SubSession) InitWithSDP(rawSDP []byte, sdpLogicCtx sdp.LogicContext) {
 }
 
 func (s *SubSession) SetupWithConn(uri string, rtpConn, rtcpConn *nazanet.UDPConnection) error {
-	if strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
+	if s.sdpLogicCtx.AudioAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
 		s.audioRTPConn = rtpConn
 		s.audioRTCPConn = rtcpConn
-	} else if strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
+	} else if s.sdpLogicCtx.VideoAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
 		s.videoRTPConn = rtpConn
 		s.videoRTCPConn = rtcpConn
 	} else {
@@ -95,12 +95,11 @@ func (s *SubSession) SetupWithConn(uri string, rtpConn, rtcpConn *nazanet.UDPCon
 func (s *SubSession) SetupWithChannel(uri string, rtpChannel, rtcpChannel int, remoteAddr string) error {
 	s.stat.RemoteAddr = remoteAddr
 
-	if strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
+	if s.sdpLogicCtx.AudioAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.AudioAControl) {
 		s.audioRTPChannel = rtpChannel
 		s.audioRTCPChannel = rtcpChannel
 		return nil
-	}
-	if strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
+	} else if s.sdpLogicCtx.VideoAControl != "" && strings.HasSuffix(uri, s.sdpLogicCtx.VideoAControl) {
 		s.videoRTPChannel = rtpChannel
 		s.videoRTCPChannel = rtcpChannel
 		return nil