Working on subtitle formats

libse/ContainerFormats/Mp4/Boxes/Mdat.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace Nikse.SubtitleEdit.Core.ContainerFormats.Mp4.Boxes
+{
+    public class Mdat : Box
+    {
+        public List<string> Payloads { get; set; }
+
+        public Mdat(FileStream fs, ulong maximumLength)
+        {
+            Payloads = new List<string>();
+            while (fs.Position < (long)maximumLength)
+            {
+                if (!InitializeSizeAndName(fs))
+                    return;
+
+                if (Name == "vtte")
+                    Console.WriteLine("vtte");
+                else if (Name == "vttc")
+                {
+                    Console.WriteLine("vttc");
+                    var vttc = new Vttc(fs, Position);
+                    if (vttc.Payload != null)
+                    {
+                        Payloads.Add(vttc.Payload);
+                    }
+                }
+                else if (Name == "payl")
+                    Console.WriteLine("payl");
+                
+                fs.Seek((long)Position, SeekOrigin.Begin);
+            }
+        }
+    }
+}

libse/ContainerFormats/Mp4/Boxes/Vttc.cs

@@ -0,0 +1,44 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace Nikse.SubtitleEdit.Core.ContainerFormats.Mp4.Boxes
+{
+    public class Vttc : Box
+    {
+
+        public string Payload { get; set; }
+
+        public Vttc(FileStream fs, ulong maximumLength)
+        {
+            long max = (long)maximumLength;
+            StringBuilder sb = null;
+            while (fs.Position < max)
+            {
+                if (!InitializeSizeAndName(fs))
+                    return;
+
+                if (Name == "payl")
+                {
+                    Console.WriteLine("payl");
+                    var length = (int) (max - fs.Position);
+                    if (length > 0 && length < 5000)
+                    {
+                        if (sb == null)
+                            sb = new StringBuilder();
+
+                        var buffer = new byte[length];
+                        fs.Read(buffer, 0, length);
+                        var s = Encoding.UTF8.GetString(buffer);
+                        sb.AppendLine();
+                        sb.AppendLine(s);
+                    }
+                }
+
+                fs.Seek((long)Position, SeekOrigin.Begin);
+            }
+            if (sb != null)
+                Payload = sb.ToString().Trim();
+        }
+    }
+}

libse/ContainerFormats/Mp4/CmafParser.cs

@@ -0,0 +1,179 @@
+using Nikse.SubtitleEdit.Core.ContainerFormats.Mp4.Boxes;
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace Nikse.SubtitleEdit.Core.ContainerFormats.Mp4
+{
+    /// <summary>
+    /// http://wiki.multimedia.cx/index.php?title=QuickTime_container
+    /// </summary>
+    public class CmafParser : Box
+    {
+        public string FileName { get; private set; }
+        public Moov Moov { get; private set; }
+        public Subtitle Subtitle { get; private set; }
+
+        public List<Trak> GetSubtitleTracks()
+        {
+            var list = new List<Trak>();
+            if (Moov != null && Moov.Tracks != null)
+            {
+                foreach (var trak in Moov.Tracks)
+                {
+                    if (trak.Mdia != null && (trak.Mdia.IsTextSubtitle || trak.Mdia.IsVobSubSubtitle || trak.Mdia.IsClosedCaption) && trak.Mdia.Minf != null && trak.Mdia.Minf.Stbl != null)
+                    {
+                        list.Add(trak);
+                    }
+                }
+            }
+            return list;
+        }
+
+        public List<Trak> GetAudioTracks()
+        {
+            var list = new List<Trak>();
+            if (Moov != null && Moov.Tracks != null)
+            {
+                foreach (var trak in Moov.Tracks)
+                {
+                    if (trak.Mdia != null && trak.Mdia.IsAudio)
+                    {
+                        list.Add(trak);
+                    }
+                }
+            }
+            return list;
+        }
+
+        public List<Trak> GetVideoTracks()
+        {
+            var list = new List<Trak>();
+            if (Moov != null && Moov.Tracks != null)
+            {
+                foreach (var trak in Moov.Tracks)
+                {
+                    if (trak.Mdia != null && trak.Mdia.IsVideo)
+                    {
+                        list.Add(trak);
+                    }
+                }
+            }
+            return list;
+        }
+
+        public TimeSpan Duration
+        {
+            get
+            {
+                if (Moov != null && Moov.Mvhd != null && Moov.Mvhd.TimeScale > 0)
+                    return TimeSpan.FromSeconds((double)Moov.Mvhd.Duration / Moov.Mvhd.TimeScale);
+                return new TimeSpan();
+            }
+        }
+
+        public DateTime CreationDate
+        {
+            get
+            {
+                if (Moov != null && Moov.Mvhd != null && Moov.Mvhd.TimeScale > 0)
+                    return new DateTime(1904, 1, 1, 0, 0, 0, DateTimeKind.Utc).Add(TimeSpan.FromSeconds(Moov.Mvhd.CreationTime));
+                return DateTime.Now;
+            }
+        }
+
+        /// <summary>
+        /// Resolution of first video track. If not present returns 0.0
+        /// </summary>
+        public System.Drawing.Point VideoResolution
+        {
+            get
+            {
+                if (Moov != null && Moov.Tracks != null)
+                {
+                    foreach (var trak in Moov.Tracks)
+                    {
+                        if (trak != null && trak.Mdia != null && trak.Tkhd != null)
+                        {
+                            if (trak.Mdia.IsVideo)
+                                return new System.Drawing.Point((int)trak.Tkhd.Width, (int)trak.Tkhd.Height);
+                        }
+                    }
+                }
+                return new System.Drawing.Point(0, 0);
+            }
+        }
+
+        public CmafParser(string fileName)
+        {
+            FileName = fileName;
+            using (var fs = new FileStream(FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
+            {
+                ParseCmaf(fs);
+                fs.Close();
+            }
+        }
+
+        public CmafParser(FileStream fs)
+        {
+            FileName = null;
+            ParseCmaf(fs);
+        }
+
+        private void ParseCmaf(FileStream fs)
+        {
+            Subtitle = new Subtitle();
+            int count = 0;
+            Position = 0;
+            fs.Seek(0, SeekOrigin.Begin);
+            bool moreBytes = true;
+            while (moreBytes)
+            {
+                moreBytes = InitializeSizeAndName(fs);
+                if (Size < 8)
+                    return;
+
+                if (Name == "moov" && Moov == null)
+                    Moov = new Moov(fs, Position); // only scan first "moov" element
+
+                if (Name == "mdat")
+                {
+                    var mdat = new Mdat(fs, Position);
+                    if (mdat.Payloads.Count > 0)
+                    {
+                        Subtitle.Paragraphs.Add(new Paragraph(string.Join(Environment.NewLine, mdat.Payloads), 0, 0));
+                    }
+                }                
+
+                count++;
+                if (count > 10000)
+                    break;
+
+                if (Position > (ulong)fs.Length)
+                    break;
+                fs.Seek((long)Position, SeekOrigin.Begin);
+            }
+            fs.Close();
+        }
+
+        internal double FrameRate
+        {
+            get
+            {
+                // Formula: moov.mdia.stbl.stsz.samplecount / (moov.trak.tkhd.duration / moov.mvhd.timescale) - http://www.w3.org/2008/WebVideo/Annotations/drafts/ontology10/CR/test.php?table=containerMPEG4
+                if (Moov != null && Moov.Mvhd != null && Moov.Mvhd.TimeScale > 0)
+                {
+                    var videoTracks = GetVideoTracks();
+                    if (videoTracks.Count > 0 && videoTracks[0].Tkhd != null && videoTracks[0].Mdia != null && videoTracks[0].Mdia.Minf != null && videoTracks[0].Mdia.Minf.Stbl != null)
+                    {
+                        double duration = videoTracks[0].Tkhd.Duration;
+                        double sampleCount = videoTracks[0].Mdia.Minf.Stbl.StszSampleCount;
+                        return sampleCount / (duration / Moov.Mvhd.TimeScale);
+                    }
+                }
+                return 0;
+            }
+        }
+
+    }
+}

libse/LibSE.csproj

@@ -59,6 +59,8 @@
     <Compile Include="ContainerFormats\Matroska\MatroskaSubtitle.cs" />
     <Compile Include="ContainerFormats\Matroska\MatroskaTrackInfo.cs" />
     <Compile Include="ContainerFormats\Mp4\Boxes\Box.cs" />
+    <Compile Include="ContainerFormats\Mp4\Boxes\Vttc.cs" />
+    <Compile Include="ContainerFormats\Mp4\Boxes\Mdat.cs" />
     <Compile Include="ContainerFormats\Mp4\Boxes\Mdhd.cs" />
     <Compile Include="ContainerFormats\Mp4\Boxes\Mdia.cs" />
     <Compile Include="ContainerFormats\Mp4\Boxes\Minf.cs" />
@@ -67,6 +69,7 @@
     <Compile Include="ContainerFormats\Mp4\Boxes\Stbl.cs" />
     <Compile Include="ContainerFormats\Mp4\Boxes\Tkhd.cs" />
     <Compile Include="ContainerFormats\Mp4\Boxes\Trak.cs" />
+    <Compile Include="ContainerFormats\Mp4\CmafParser.cs" />
     <Compile Include="ContainerFormats\Mp4\Mp4Parser.cs" />
     <Compile Include="ContainerFormats\RiffDecodeHeader.cs" />
     <Compile Include="ContainerFormats\RiffParser.cs" />
@@ -216,6 +219,7 @@
     <Compile Include="Subtitle.cs" />
     <Compile Include="SubtitleFormats\AribB36.cs" />
     <Compile Include="SubtitleFormats\AribB24Decoder.cs" />
+    <Compile Include="SubtitleFormats\CmafImsc1.cs" />
     <Compile Include="SubtitleFormats\Csv5.cs" />
     <Compile Include="SubtitleFormats\JacoSub.cs" />
     <Compile Include="SubtitleFormats\JsonType11.cs" />

libse/SubtitleFormats/CmafImsc1.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using Nikse.SubtitleEdit.Core.ContainerFormats.Mp4;
+
+namespace Nikse.SubtitleEdit.Core.SubtitleFormats
+{
+    /// <summary>
+    /// CMFT - "Common Media application Format Text"
+    /// </summary>
+    public class CmafImsc1 : SubtitleFormat
+    {
+
+        public override string Extension => ".cmft";
+
+        public const string NameOfFormat = "CmafImsc1";
+
+        public override string Name => NameOfFormat;
+
+        public override bool IsTimeBased => true;
+
+        public override bool IsMine(List<string> lines, string fileName)
+        {
+            if (!string.IsNullOrEmpty(fileName) && fileName.EndsWith(".cmft", StringComparison.OrdinalIgnoreCase))
+            {
+                var parser = new CmafParser(fileName);
+                return parser.Subtitle.Paragraphs.Count > 0;
+            }
+            return false;
+        }
+
+        public override string ToText(Subtitle subtitle, string title)
+        {
+            return "Not implemented!";
+        }
+
+        public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
+        {
+            var parser = new CmafParser(fileName);
+            subtitle.Paragraphs.AddRange(parser.Subtitle.Paragraphs);
+        }
+
+    }
+}

libse/SubtitleFormats/PE2.cs

@@ -5,7 +5,7 @@ using System.Text.RegularExpressions;
 
 namespace Nikse.SubtitleEdit.Core.SubtitleFormats
 {
-    public class PE2 : SubtitleFormat
+    public class Pe2 : SubtitleFormat
     {
         private static readonly Regex RegexTimeCode = new Regex(@"^\d\d:\d\d:\d\d:\d\d ", RegexOptions.Compiled);
         private static readonly Regex RegexTimeCodeEnd = new Regex(@"^\d\d:\d\d:\d\d:\d\d$", RegexOptions.Compiled);
@@ -17,20 +17,11 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
             TimeEndOrText,
         }
 
-        public override string Extension
+        public override string Extension => ".txt";
-        {
-            get { return ".txt"; }
-        }
 
-        public override string Name
+        public override string Name => "PE2";
-        {
-            get { return "PE2"; }
-        }
 
-        public override bool IsTimeBased
+        public override bool IsTimeBased => true;
-        {
-            get { return true; }
-        }
 
         public override bool IsMine(List<string> lines, string fileName)
         {
@@ -38,8 +29,8 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
             foreach (string line in lines)
                 sb.AppendLine(line);
             string s = sb.ToString();
-            if (s.Contains("[HEADER]") && s.Contains("[BODY]"))
+            if (!s.Contains("#PE2"))
-                return false; // UnknownSubtitle17
+                return false; 
 
             var subtitle = new Subtitle();
             LoadSubtitle(subtitle, lines, fileName);
@@ -71,8 +62,8 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
 
         public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
         {
-            var paragraph = new Paragraph();
+            Paragraph paragraph = null;
-            ExpectingLine expecting = ExpectingLine.TimeStart;
+            var expecting = ExpectingLine.TimeStart;
             _errorCount = 0;
 
             subtitle.Paragraphs.Clear();
@@ -86,39 +77,40 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                         try
                         {
                             var tc = DecodeTimeCodeFramesFourParts(parts);
-                            if (expecting == ExpectingLine.TimeStart)
+                            if (paragraph != null)
                             {
-                                paragraph = new Paragraph();
+                                if (paragraph.EndTime.TotalMilliseconds < 0.001)
-                                paragraph.StartTime = tc;
+                                    paragraph.EndTime.TotalMilliseconds = tc.TotalMilliseconds - Configuration.Settings.General.MinimumMillisecondsBetweenLines;
-                                expecting = ExpectingLine.Text;
+                                subtitle.Paragraphs.Add(paragraph);
-                                if (line.Length > 12)
-                                    paragraph.Text = line.Substring(12).Trim().Replace("//", Environment.NewLine);
                             }
+                            paragraph = new Paragraph { StartTime = tc };
+                            expecting = ExpectingLine.Text;
+                            if (line.Length > 12)
+                                paragraph.Text = line.Substring(12).Trim().Replace("//", Environment.NewLine);
                         }
                         catch
                         {
                             _errorCount++;
-                            expecting = ExpectingLine.TimeStart;
                         }
                     }
                 }
                 else if (RegexTimeCodeEnd.IsMatch(line))
                 {
                     string[] parts = line.Substring(0, 11).Split(SplitCharColon, StringSplitOptions.RemoveEmptyEntries);
-                    if (parts.Length == 4)
+                    if (parts.Length == 4 && paragraph != null)
                     {
                         var tc = DecodeTimeCodeFramesFourParts(parts);
                         paragraph.EndTime = tc;
                         subtitle.Paragraphs.Add(paragraph);
                         if (paragraph.StartTime.TotalMilliseconds < 0.001)
                             _errorCount++;
-                        paragraph = new Paragraph();
+                        paragraph = null;
                         expecting = ExpectingLine.TimeStart;
                     }
                 }
                 else
                 {
-                    if (expecting == ExpectingLine.Text)
+                    if (expecting == ExpectingLine.Text && paragraph != null)
                     {
                         if (line.Length > 0)
                         {
@@ -139,6 +131,10 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                     }
                 }
             }
+            if (!string.IsNullOrEmpty(paragraph?.Text) && paragraph.EndTime.TotalMilliseconds < 0.001)
+            {
+                paragraph.EndTime.TotalMilliseconds = 3000;
+            }
             subtitle.Renumber();
         }
 

libse/SubtitleFormats/SubtitleFormat.cs

@@ -105,7 +105,7 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                     new OpenDvt(),
                     new Oresme(),
                     new OresmeDocXDocument(),
-                    new PE2(),
+                    new Pe2(),
                     new PhoenixSubtitle(),
                     new PinnacleImpression(),
                     new PListCaption(),

libse/SubtitleFormats/UnknownSubtitle53.cs

@@ -6,27 +6,18 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
 {
     public class UnknownSubtitle53 : SubtitleFormat
     {
-
         private static readonly Regex RegexTimeCodes = new Regex(@"^\d\d\:\d\d\:\d\d\:\d\d .+", RegexOptions.Compiled);
+        private static readonly Regex RegexTimeCodesEnd = new Regex(@"^\d\d\:\d\d\:\d\d\:\d\d$", RegexOptions.Compiled);
 
-        public override string Extension
+        public override string Extension => ".txt";
-        {
-            get { return ".txt"; }
-        }
 
-        public override string Name
+        public override string Name => "Unknown 53";
-        {
-            get { return "Unknown 53"; }
-        }
 
-        public override bool IsTimeBased
+        public override bool IsTimeBased => true;
-        {
-            get { return true; }
-        }
 
         public override bool IsMine(List<string> lines, string fileName)
         {
-            Subtitle subtitle = new Subtitle();
+            var subtitle = new Subtitle();
             LoadSubtitle(subtitle, lines, fileName);
             return subtitle.Paragraphs.Count > _errorCount;
         }
@@ -50,7 +41,7 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
 
         private static string EncodeTimeCode(TimeCode timeCode)
         {
-            return string.Format("{0:00}:{1:00}:{2:00}:{3:00}", timeCode.Hours, timeCode.Minutes, timeCode.Seconds, MillisecondsToFramesMaxFrameRate(timeCode.Milliseconds));
+            return $"{timeCode.Hours:00}:{timeCode.Minutes:00}:{timeCode.Seconds:00}:{MillisecondsToFramesMaxFrameRate(timeCode.Milliseconds):00}";
         }
 
         public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
@@ -62,33 +53,34 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                 string s = line.Trim();
                 if (RegexTimeCodes.Match(s).Success)
                 {
-                    if (p != null && !string.IsNullOrEmpty(p.Text))
+                    if (!string.IsNullOrEmpty(p?.Text))
                         subtitle.Paragraphs.Add(p);
                     p = new Paragraph();
 
                     try
                     {
-                        string[] arr = s.Substring(0, 11).Split(':');
+                        var arr = s.Substring(0, 11).Split(':');
-                        if (arr.Length == 4)
+                        p.StartTime = DecodeTimeCodeFramesFourParts(arr);
-                        {
+                        string text = s.Substring(11).Trim();
-                            p.StartTime = DecodeTimeCodeFramesFourParts(arr);
+                        p.Text = text;
-                            string text = s.Substring(11).Trim();
+                        if (text.Length > 1 && Utilities.IsInteger(text.Substring(0, 2)))
-                            p.Text = text;
+                            _errorCount++;
-                            if (text.Length > 1 && Utilities.IsInteger(text.Substring(0, 2)))
-                                _errorCount++;
-                        }
                     }
                     catch
                     {
                         _errorCount++;
                     }
                 }
+                else if (s.Length == 11 && RegexTimeCodesEnd.IsMatch(line) && p != null)
+                {
+                    p.EndTime = DecodeTimeCodeFramesFourParts(s.Split(':'));
+                }
                 else if (s.Length > 0)
                 {
                     _errorCount++;
                 }
             }
-            if (p != null && !string.IsNullOrEmpty(p.Text))
+            if (!string.IsNullOrEmpty(p?.Text))
                 subtitle.Paragraphs.Add(p);
 
             int index = 1;
@@ -97,11 +89,11 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                 paragraph.Text = paragraph.Text.Replace("\\M", "♪");
 
                 Paragraph next = subtitle.GetParagraphOrDefault(index);
-                if (next != null)
+                if (next != null && paragraph.EndTime.TotalMilliseconds < 0.01)
                 {
                     paragraph.EndTime.TotalMilliseconds = next.StartTime.TotalMilliseconds - 1;
                 }
-                else
+                else if (next == null)
                 {
                     paragraph.EndTime.TotalMilliseconds = paragraph.StartTime.TotalMilliseconds + Utilities.GetOptimalDisplayMilliseconds(paragraph.Text);
                 }

src/Forms/ImportText.Designer.cs

@@ -34,6 +34,8 @@
             this.listViewInputFiles = new System.Windows.Forms.ListView();
             this.columnHeaderFName = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
             this.columnHeaderSize = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.contextMenuStripListView = new System.Windows.Forms.ContextMenuStrip(this.components);
+            this.clearToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.checkBoxMultipleFiles = new System.Windows.Forms.CheckBox();
             this.textBoxText = new System.Windows.Forms.TextBox();
             this.groupBoxImportOptions = new System.Windows.Forms.GroupBox();
@@ -57,13 +59,12 @@
             this.radioButtonLineMode = new System.Windows.Forms.RadioButton();
             this.checkBoxRemoveEmptyLines = new System.Windows.Forms.CheckBox();
             this.groupBoxImportResult = new System.Windows.Forms.GroupBox();
+            this.SubtitleListview1 = new Nikse.SubtitleEdit.Controls.SubtitleListView();
             this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
             this.buttonCancel = new System.Windows.Forms.Button();
             this.buttonOK = new System.Windows.Forms.Button();
-            this.contextMenuStripListView = new System.Windows.Forms.ContextMenuStrip(this.components);
-            this.clearToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
-            this.SubtitleListview1 = new Nikse.SubtitleEdit.Controls.SubtitleListView();
             this.groupBoxImportText.SuspendLayout();
+            this.contextMenuStripListView.SuspendLayout();
             this.groupBoxImportOptions.SuspendLayout();
             this.groupBoxTimeCodes.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.numericUpDownGapBetweenLines)).BeginInit();
@@ -71,7 +72,6 @@
             ((System.ComponentModel.ISupportInitialize)(this.numericUpDownDurationFixed)).BeginInit();
             this.groupBoxSplitting.SuspendLayout();
             this.groupBoxImportResult.SuspendLayout();
-            this.contextMenuStripListView.SuspendLayout();
             this.SuspendLayout();
             // 
             // buttonOpenText
@@ -131,6 +131,20 @@
             this.columnHeaderSize.Text = "Size";
             this.columnHeaderSize.Width = 81;
             // 
+            // contextMenuStripListView
+            // 
+            this.contextMenuStripListView.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.clearToolStripMenuItem});
+            this.contextMenuStripListView.Name = "contextMenuStripListView";
+            this.contextMenuStripListView.Size = new System.Drawing.Size(102, 26);
+            // 
+            // clearToolStripMenuItem
+            // 
+            this.clearToolStripMenuItem.Name = "clearToolStripMenuItem";
+            this.clearToolStripMenuItem.Size = new System.Drawing.Size(101, 22);
+            this.clearToolStripMenuItem.Text = "Clear";
+            this.clearToolStripMenuItem.Click += new System.EventHandler(this.clearToolStripMenuItem_Click);
+            // 
             // checkBoxMultipleFiles
             // 
             this.checkBoxMultipleFiles.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
@@ -437,6 +451,32 @@
             this.groupBoxImportResult.TabStop = false;
             this.groupBoxImportResult.Text = "Preview";
             // 
+            // SubtitleListview1
+            // 
+            this.SubtitleListview1.AllowColumnReorder = true;
+            this.SubtitleListview1.AllowDrop = true;
+            this.SubtitleListview1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
+            | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.SubtitleListview1.FirstVisibleIndex = -1;
+            this.SubtitleListview1.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.SubtitleListview1.FullRowSelect = true;
+            this.SubtitleListview1.GridLines = true;
+            this.SubtitleListview1.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
+            this.SubtitleListview1.HideSelection = false;
+            this.SubtitleListview1.Location = new System.Drawing.Point(6, 19);
+            this.SubtitleListview1.MultiSelect = false;
+            this.SubtitleListview1.Name = "SubtitleListview1";
+            this.SubtitleListview1.OwnerDraw = true;
+            this.SubtitleListview1.Size = new System.Drawing.Size(882, 204);
+            this.SubtitleListview1.SubtitleFontBold = false;
+            this.SubtitleListview1.SubtitleFontName = "Tahoma";
+            this.SubtitleListview1.SubtitleFontSize = 8;
+            this.SubtitleListview1.TabIndex = 0;
+            this.SubtitleListview1.UseCompatibleStateImageBehavior = false;
+            this.SubtitleListview1.UseSyntaxColoring = true;
+            this.SubtitleListview1.View = System.Windows.Forms.View.Details;
+            // 
             // openFileDialog1
             // 
             this.openFileDialog1.FileName = "openFileDialog1";
@@ -465,46 +505,6 @@
             this.buttonOK.UseVisualStyleBackColor = true;
             this.buttonOK.Click += new System.EventHandler(this.ButtonOkClick);
             // 
-            // contextMenuStripListView
-            // 
-            this.contextMenuStripListView.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
-            this.clearToolStripMenuItem});
-            this.contextMenuStripListView.Name = "contextMenuStripListView";
-            this.contextMenuStripListView.Size = new System.Drawing.Size(102, 26);
-            // 
-            // clearToolStripMenuItem
-            // 
-            this.clearToolStripMenuItem.Name = "clearToolStripMenuItem";
-            this.clearToolStripMenuItem.Size = new System.Drawing.Size(101, 22);
-            this.clearToolStripMenuItem.Text = "Clear";
-            this.clearToolStripMenuItem.Click += new System.EventHandler(this.clearToolStripMenuItem_Click);
-            // 
-            // SubtitleListview1
-            // 
-            this.SubtitleListview1.AllowColumnReorder = true;
-            this.SubtitleListview1.AllowDrop = true;
-            this.SubtitleListview1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
-            | System.Windows.Forms.AnchorStyles.Left) 
-            | System.Windows.Forms.AnchorStyles.Right)));
-            this.SubtitleListview1.FirstVisibleIndex = -1;
-            this.SubtitleListview1.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
-            this.SubtitleListview1.FullRowSelect = true;
-            this.SubtitleListview1.GridLines = true;
-            this.SubtitleListview1.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
-            this.SubtitleListview1.HideSelection = false;
-            this.SubtitleListview1.Location = new System.Drawing.Point(6, 19);
-            this.SubtitleListview1.MultiSelect = false;
-            this.SubtitleListview1.Name = "SubtitleListview1";
-            this.SubtitleListview1.OwnerDraw = true;
-            this.SubtitleListview1.Size = new System.Drawing.Size(882, 204);
-            this.SubtitleListview1.SubtitleFontBold = false;
-            this.SubtitleListview1.SubtitleFontName = "Tahoma";
-            this.SubtitleListview1.SubtitleFontSize = 8;
-            this.SubtitleListview1.TabIndex = 0;
-            this.SubtitleListview1.UseCompatibleStateImageBehavior = false;
-            this.SubtitleListview1.UseSyntaxColoring = true;
-            this.SubtitleListview1.View = System.Windows.Forms.View.Details;
-            // 
             // ImportText
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
@@ -524,9 +524,11 @@
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
             this.Text = "Import text";
             this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.ImportText_FormClosing);
+            this.Shown += new System.EventHandler(this.ImportText_Shown);
             this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.ImportTextKeyDown);
             this.groupBoxImportText.ResumeLayout(false);
             this.groupBoxImportText.PerformLayout();
+            this.contextMenuStripListView.ResumeLayout(false);
             this.groupBoxImportOptions.ResumeLayout(false);
             this.groupBoxImportOptions.PerformLayout();
             this.groupBoxTimeCodes.ResumeLayout(false);
@@ -538,7 +540,6 @@
             this.groupBoxSplitting.ResumeLayout(false);
             this.groupBoxSplitting.PerformLayout();
             this.groupBoxImportResult.ResumeLayout(false);
-            this.contextMenuStripListView.ResumeLayout(false);
             this.ResumeLayout(false);
 
         }

src/Forms/Main.cs

@@ -2516,6 +2516,27 @@ namespace Nikse.SubtitleEdit.Forms
                     }
                 }
 
+                if (format == null)
+                {
+                    try
+                    {
+                        var cmaf = new CmafImsc1();
+                        if (cmaf.IsMine(null, fileName))
+                        {
+                            cmaf.LoadSubtitle(_subtitle, null, fileName);
+                            SetCurrentFormat(Configuration.Settings.General.DefaultSubtitleFormat);
+                            SetEncoding(Configuration.Settings.General.DefaultEncoding);
+                            encoding = GetCurrentEncoding();
+                            justConverted = true;
+                            format = GetCurrentSubtitleFormat();
+                        }
+                    }
+                    catch
+                    {
+                        // ignore
+                    }
+                }
+
                 if (format == null || format.Name == Scenarist.NameOfFormat)
                 {
                     try

src/SubtitleEdit.sln

@@ -1,7 +1,7 @@
 
-Microsoft Visual Studio Solution File, Format Version 14.00
+Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 14
+# Visual Studio 15
-VisualStudioVersion = 14.0.23107.0
+VisualStudioVersion = 15.0.26430.14
 MinimumVisualStudioVersion = 14.0.23107.0
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SubtitleEdit", "SubtitleEdit.csproj", "{511A5B59-1C35-4719-8536-23B19AF9B21A}"
 	ProjectSection(ProjectDependencies) = postProject