diff --git a/src/Rtsp/RtspPlayer.cpp b/src/Rtsp/RtspPlayer.cpp
index 7c9c74ad..10a1f7e3 100644
--- a/src/Rtsp/RtspPlayer.cpp
+++ b/src/Rtsp/RtspPlayer.cpp
@@ -823,21 +823,15 @@ void RtspPlayer::onPlayResult_l(const SockException &ex , bool handshakeComplete
     }
 }
 
-int RtspPlayer::getTrackIndexByControlSuffix(const string &controlSuffix) const{
-	for (unsigned int i = 0; i < _aTrackInfo.size(); i++) {
-		auto pos = _aTrackInfo[i]->_control_surffix.find(controlSuffix);
-		if (pos == 0) {
-			return i;
-		}
-	}
-	return -1;
-}
 int RtspPlayer::getTrackIndexByInterleaved(int interleaved) const{
 	for (unsigned int i = 0; i < _aTrackInfo.size(); i++) {
 		if (_aTrackInfo[i]->_interleaved == interleaved) {
 			return i;
 		}
 	}
+	if(_aTrackInfo.size() == 1){
+		return 0;
+	}
 	return -1;
 }
 
@@ -847,6 +841,9 @@ int RtspPlayer::getTrackIndexByTrackType(TrackType trackType) const {
 			return i;
 		}
 	}
+	if(_aTrackInfo.size() == 1){
+		return 0;
+	}
 	return -1;
 }
 
diff --git a/src/Rtsp/RtspPlayer.h b/src/Rtsp/RtspPlayer.h
index a633ab91..ee7afba0 100644
--- a/src/Rtsp/RtspPlayer.h
+++ b/src/Rtsp/RtspPlayer.h
@@ -103,7 +103,6 @@ private:
 	void onRecvRTP_l(const RtpPacket::Ptr &pRtppt, const SdpTrack::Ptr &track);
 	void onPlayResult_l(const SockException &ex , bool handshakeCompleted);
 
-    int getTrackIndexByControlSuffix(const string &controlSuffix) const;
     int getTrackIndexByInterleaved(int interleaved) const;
 	int getTrackIndexByTrackType(TrackType trackType) const;
 
diff --git a/src/Rtsp/RtspPusher.cpp b/src/Rtsp/RtspPusher.cpp
index 7e2ca8c2..e40a185b 100644
--- a/src/Rtsp/RtspPusher.cpp
+++ b/src/Rtsp/RtspPusher.cpp
@@ -351,6 +351,9 @@ inline int RtspPusher::getTrackIndexByTrackType(TrackType type) {
             return i;
         }
     }
+    if(_aTrackInfo.size() == 1){
+        return 0;
+    }
     return -1;
 }
 
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 14e2b89a..c06e204a 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -1105,6 +1105,9 @@ inline int RtspSession::getTrackIndexByTrackType(TrackType type) {
 			return i;
 		}
 	}
+    if(_aTrackInfo.size() == 1){
+        return 0;
+    }
 	return -1;
 }
 inline int RtspSession::getTrackIndexByControlSuffix(const string &controlSuffix) {
@@ -1125,6 +1128,9 @@ inline int RtspSession::getTrackIndexByInterleaved(int interleaved){
 			return i;
 		}
 	}
+    if(_aTrackInfo.size() == 1){
+        return 0;
+    }
 	return -1;
 }