diff --git a/src/Rtsp/RtpBroadCaster.cpp b/src/Rtsp/RtpBroadCaster.cpp
index 0e004916..431924d0 100644
--- a/src/Rtsp/RtpBroadCaster.cpp
+++ b/src/Rtsp/RtpBroadCaster.cpp
@@ -37,6 +37,11 @@ using namespace ZL::Network;
 namespace ZL {
 namespace Rtsp {
 
+MultiCastAddressMaker &MultiCastAddressMaker::Instance() {
+	static MultiCastAddressMaker instance;
+	return instance;
+}
+
 static uint32_t addressToInt(const string &ip){
     struct in_addr addr;
     bzero(&addr,sizeof(addr));
diff --git a/src/Rtsp/RtpBroadCaster.h b/src/Rtsp/RtpBroadCaster.h
index 0f318d39..9c5df0d4 100644
--- a/src/Rtsp/RtpBroadCaster.h
+++ b/src/Rtsp/RtpBroadCaster.h
@@ -47,10 +47,8 @@ namespace Rtsp {
 class MultiCastAddressMaker
 {
 public:
-	static MultiCastAddressMaker &Instance(){
-		static MultiCastAddressMaker instance;
-		return instance;
-	}
+	static MultiCastAddressMaker &Instance();
+
 	static bool isMultiCastAddress(uint32_t iAddr){
 		static uint32_t addrMin = mINI::Instance()[Config::MultiCast::kAddrMin].as<uint32_t>();
 		static uint32_t addrMax = mINI::Instance()[Config::MultiCast::kAddrMax].as<uint32_t>();
diff --git a/src/Rtsp/UDPServer.cpp b/src/Rtsp/UDPServer.cpp
index e37d2a33..467b0871 100644
--- a/src/Rtsp/UDPServer.cpp
+++ b/src/Rtsp/UDPServer.cpp
@@ -32,6 +32,14 @@ using namespace ZL::Util;
 namespace ZL {
 namespace Rtsp {
 
+UDPServer &UDPServer::Instance() {
+	static UDPServer *instance(new UDPServer());
+	return *instance;
+}
+void UDPServer::Destory() {
+	delete &UDPServer::Instance();
+}
+
 UDPServer::UDPServer() {
 }
 
diff --git a/src/Rtsp/UDPServer.h b/src/Rtsp/UDPServer.h
index 0ce34208..6b1c0b9a 100644
--- a/src/Rtsp/UDPServer.h
+++ b/src/Rtsp/UDPServer.h
@@ -47,13 +47,9 @@ public:
 	typedef function< bool(int, const Buffer::Ptr &, struct sockaddr *)> onRecvData;
 	UDPServer();
 	virtual ~UDPServer();
-	static UDPServer &Instance() {
-		static UDPServer *instance(new UDPServer());
-		return *instance;
-	}
-	static void Destory() {
-		delete &UDPServer::Instance();
-	}
+	static UDPServer &Instance();
+	static void Destory();
+
 	Socket::Ptr getSock(const char *strLocalIp, int iTrackIndex,uint16_t iLocalPort = 0);
 	void listenPeer(const char *strPeerIp, void *pSelf, const onRecvData &cb);
 	void stopListenPeer(const char *strPeerIp, void *pSelf);