Fix #2364: Live: Fail for stream busy if GB28181 is publishing.

trunk/src/app/srs_app_rtmp_conn.cpp

@@ -960,6 +960,15 @@ srs_error_t SrsRtmpConn::acquire_publish(SrsLiveSource* source)
     srs_error_t err = srs_success;
     
     SrsRequest* req = info->req;
+	
+	// @see https://github.com/ossrs/srs/issues/2364
+    // Check whether GB28181 stream is busy.
+#if defined(SRS_GB28181)
+    SrsGb28181RtmpMuxer* gb28181 = _srs_gb28181->fetch_rtmpmuxer(req->stream);
+    if (gb28181 != NULL) {
+        return srs_error_new(ERROR_SYSTEM_STREAM_BUSY, "gb28181 stream %s busy", req->get_stream_url().c_str());
+    }
+#endif
 
     // Check whether RTC stream is busy.
 #ifdef SRS_RTC