MissionPlanner.MAVLinkInterface.DebugPacket C# (CSharp) Method

        public object DebugPacket(MAVLinkMessage datin)
        {
            string text = "";
            return DebugPacket(datin, ref text, true);
        }

        public static string tlogToCSV(string filepath)
        {
            CurrentState.SpeedUnit = "m/s";
            CurrentState.DistanceUnit = "m";
            MAVLinkInterface proto = new MAVLinkInterface();

               OpenFileDialog openFileDialog1 = new OpenFileDialog();

               string LogFilePath;
              openFileDialog1.FileName = filepath;

                    foreach (string logfile in openFileDialog1.FileNames)
                    {

                        using (MAVLinkInterface mine = new MAVLinkInterface())
                        {
                            try
                            {
                                mine.logplaybackfile = new BinaryReader(File.Open(logfile, FileMode.Open, FileAccess.Read, FileShare.Read));
                            }
                            catch (Exception ex) { log.Debug(ex.ToString()); }
                            mine.logreadmode = true;

                            mine.MAV.packets.Initialize(); // clear

                            StreamWriter sw = new StreamWriter(Path.GetDirectoryName(logfile) + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(logfile) + ".csv");

                            while (mine.logplaybackfile.BaseStream.Position < mine.logplaybackfile.BaseStream.Length)
                            {

                                byte[] packet = mine.readPacket();
                                string text = "";
                                mine.DebugPacket(packet, ref text, true, ",");

                                sw.Write(mine.lastlogread.ToString("yyyy-MM-ddTHH:mm:ss.fff") + "," + text);
                            }

                            sw.Close();

                            mine.logreadmode = false;
                            mine.logplaybackfile.Close();
                            mine.logplaybackfile = null;
                            LogFilePath = (Path.GetDirectoryName(logfile) + Path.DirectorySeparatorChar + (Path.GetFileNameWithoutExtension(logfile) + ".csv"));

                            return LogFilePath;
                        }
                    }

                    return null;
        }