Add new sub format - thx Aris :)

src/libse/SubtitleFormats/Fte.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using Nikse.SubtitleEdit.Core.Common;
+
+namespace Nikse.SubtitleEdit.Core.SubtitleFormats
+{
+    public class Fte : SubtitleFormat
+    {
+        public override string Extension => ".fte";
+        public override string Name => "FTE";
+
+        public override string ToText(Subtitle subtitle, string title)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
+        {
+            subtitle.Paragraphs.Clear();
+            if (!File.Exists(fileName))
+            {
+                return;
+            }
+
+            const int subBufferLength = 73; // 9 bytes time code and 64 text
+            _errorCount = 0;
+
+            var bytes = FileUtil.ReadAllBytesShared(fileName);
+            if (bytes.Length < 200)
+            {
+                return;
+            }
+
+            var index = 2;
+            var encoding = Encoding.GetEncoding(1252);
+            var add = 0;
+            var last = 0;
+            while (index + subBufferLength < bytes.Length)
+            {
+                var text1 = encoding.GetString(bytes, index, 31);
+                var text2 = encoding.GetString(bytes, index + 31 + 2, 31);
+                var timeString = encoding.GetString(bytes, index + 64, 7);
+                if (int.TryParse(timeString, NumberStyles.None, CultureInfo.InvariantCulture, out var number))
+                {
+                    var ms = number;
+                    if (text1.StartsWith("# end", StringComparison.Ordinal))
+                    {
+                        add += last;
+                    }
+                    else
+                    {
+                        ms += add;
+                        var p = new Paragraph((text1.Trim() + Environment.NewLine + text2.Trim()).Trim(), ms, ms + 2000);
+                        subtitle.Paragraphs.Add(p);
+                    }
+
+                    last = ms;
+                }
+
+                index += subBufferLength;
+            }
+
+            subtitle.Renumber();
+            subtitle.SetFixedDuration(null, 1000);
+            subtitle.RecalculateDisplayTimes(Configuration.Settings.General.SubtitleMaximumCharactersPerSeconds, null, Configuration.Settings.General.SubtitleOptimalCharactersPerSeconds);
+        }
+    }
+}

src/libse/SubtitleFormats/SubtitleFormat.cs

@@ -657,6 +657,7 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                 new Rdf1(),
                 new CombinedXml(),
                 new AudacityLabels(),
+                new Fte(),
             };
         }