Fix build fail

trunk/src/app/srs_app_gb28181.cpp

@@ -1011,6 +1011,11 @@ std::string SrsGb28181RtmpMuxer::remote_ip()
     return "";
 }
 
+const SrsContextId& SrsGb28181RtmpMuxer::get_id()
+{
+    return _srs_context->get_id();
+}
+
 std::string SrsGb28181RtmpMuxer::desc()
 {
     return "GBConn";

trunk/src/app/srs_app_gb28181.hpp

@@ -348,6 +348,7 @@ private:
 public:
     virtual srs_error_t cycle();
     virtual std::string remote_ip();
+    virtual const SrsContextId& get_id();
     virtual std::string desc();
 public:
     virtual srs_error_t on_rtp_video(SrsSimpleStream* stream, int64_t dts);

trunk/src/app/srs_app_gb28181_sip.cpp

@@ -301,6 +301,11 @@ std::string SrsGb28181SipSession::remote_ip()
     return _peer_ip;
 }
 
+const SrsContextId& SrsGb28181RtmpMuxer::get_id()
+{
+    return _srs_context->get_id();
+}
+
 std::string SrsGb28181SipSession::desc()
 {
     return "SipConn";

trunk/src/app/srs_app_gb28181_sip.hpp

@@ -144,6 +144,7 @@ public:
 public:
     virtual srs_error_t cycle();   
     virtual std::string remote_ip();
+    virtual const SrsContextId& get_id();
     virtual std::string desc();
 private:
     virtual srs_error_t do_cycle();