Imports StaxRip.UI
Imports StaxRip.CommandLine
Imports System.Text.RegularExpressions

<Serializable()>
Public MustInherit Class VideoEncoder
    Inherits Profile
    Implements IComparable(Of VideoEncoder)

    MustOverride Sub Encode()

    MustOverride ReadOnly Property OutputExt As String

    Overridable Property Passes As Integer
    Overridable Property QualityMode As Boolean

    Property AutoCompCheckValue As Integer = 50
    Property Muxer As Muxer = New MkvMuxer

    Public MustOverride Sub ShowConfigDialog()

    Sub New()
        CanEditValue = True
    End Sub

    ReadOnly Property OutputExtFull As String
        Get
            Return "." + OutputExt
        End Get
    End Property

    Private OutputPathValue As String

    Overridable ReadOnly Property OutputPath() As String
        Get
            If TypeOf Muxer Is NullMuxer Then
                Return p.TargetFile
            Else
                Return p.TempDir + p.TargetFile.Base + "_out." + OutputExt
            End If
        End Get
    End Property

    Overridable Function GetMenu() As MenuList
    End Function

    Overridable Sub ImportCommandLine(commandLine As String)
    End Sub

    Sub SetMetaData(sourceFile As String)
        If Not p.ImportVUIMetadata Then Exit Sub

        Dim cl As String
        Dim colour_primaries = MediaInfo.GetVideo(sourceFile, "colour_primaries")
        Dim height = MediaInfo.GetVideo(sourceFile, "Height").ToInt

        Select Case colour_primaries
            Case "BT.2020"
                cl += " --colorprim bt2020"
            Case "BT.709"
                If height <= 576 Then cl += " --colorprim bt709"
            Case "BT.601 NTSC"
                If height > 480 Then cl += " --colorprim bt470m"
            Case "BT.601 PAL"
                If height > 576 Then cl += " --colorprim bt470bg"
        End Select

        Dim transfer_characteristics = MediaInfo.GetVideo(sourceFile, "transfer_characteristics")

        Select Case transfer_characteristics
            Case "PQ", "SMPTE ST 2084"
                cl += " --transfer smpte2084"
            Case "BT.709"
                If height <= 576 Then cl += " --transfer bt709"
        End Select

        Dim matrix_coefficients = MediaInfo.GetVideo(sourceFile, "matrix_coefficients")

        Select Case matrix_coefficients
            Case "BT.2020 non-constant"
                cl += " --colormatrix bt2020nc"
        End Select

        Dim MasteringDisplay_ColorPrimaries = MediaInfo.GetVideo(sourceFile, "MasteringDisplay_ColorPrimaries")
        Dim MasteringDisplay_Luminance = MediaInfo.GetVideo(sourceFile, "MasteringDisplay_Luminance")

        If MasteringDisplay_ColorPrimaries <> "" AndAlso MasteringDisplay_Luminance <> "" Then
            Dim match1 = Regex.Match(MasteringDisplay_ColorPrimaries, "BT.2020")
            ''Dim match1 = Regex.Match(MasteringDisplay_ColorPrimaries, "R: x=([0-9\.]+) y=([0-9\.]+), G: x=([0-9\.]+) y=([0-9\.]+), B: x=([0-9\.]+) y=([0-9\.]+), White point: x=([0-9\.]+) y=([0-9\.]+)")
            Dim match2 = Regex.Match(MasteringDisplay_Luminance, "min: ([0-9\.]+) cd/m2, max: ([0-9\.]+)")

            If match1.Success AndAlso match2.Success Then
                ''Dim strings1 = match1.Groups.OfType(Of Group).Skip(1).Select(Function(group) CInt(group.Value.ToDouble * 50000).ToString)
                Dim strings2 = match2.Groups.OfType(Of Group).Skip(1).Select(Function(group) CInt(group.Value.ToDouble * 10000).ToString)
                cl += "--master-display ""G(8500,39850)B(6550,2300)R(35400,14600)WP(15635,16450)L(10000000,1)"""
                ''cl += $" --master-display ""G({strings1(2)},{strings1(3)})B({strings1(4)},{strings1(5)})R({strings1(0)},{strings1(1)})WP({strings1(6)},{strings1(7)})L({strings2(1)},{strings2(0)})"""
                cl += " --range limited"
            End If
        End If

        Dim MaxCLL = MediaInfo.GetVideo(sourceFile, "MaxCLL").Trim.Left(" ").ToInt
        Dim MaxFALL = MediaInfo.GetVideo(sourceFile, "MaxFALL").Trim.Left(" ").ToInt

        If MaxCLL <> 0 OrElse MaxFALL <> 0 Then cl += $" --max-cll ""{MaxCLL},{MaxFALL}"""

        ImportCommandLine(cl)
    End Sub

    Sub AfterEncoding()
        If Not g.FileExists(OutputPath) Then
            Throw New ErrorAbortException("Encoder output file is missing", OutputPath)
        Else
            Log.WriteLine(MediaInfo.GetSummary(OutputPath))
        End If
    End Sub

    Overrides Function CreateEditControl() As Control
        Dim ret As New ToolStripEx

        ret.ShowItemToolTips = False
        ret.GripStyle = ToolStripGripStyle.Hidden
        ret.BackColor = System.Drawing.SystemColors.Window
        ret.Dock = DockStyle.Fill
        ret.BackColor = System.Drawing.SystemColors.Window
        ret.LayoutStyle = System.Windows.Forms.ToolStripLayoutStyle.VerticalStackWithOverflow
        ret.ShowControlBorder = True
        ret.Font = New Font("Segoe UI", 9 * s.UIScaleFactor)

        For Each i In GetMenu()
            Dim b As New ToolStripButton
            b.Margin = New Padding(0)
            b.Text = i.Key
            b.Padding = New Padding(4)
            Dim happy = i
            AddHandler b.Click, Sub() happy.Value.Invoke()
            b.TextAlign = ContentAlignment.MiddleLeft
            ret.Items.Add(b)
        Next

        Return ret
    End Function

    Overridable ReadOnly Property IsCompCheckEnabled() As Boolean
        Get
            Return Not QualityMode
        End Get
    End Property

    Protected Sub OnAfterCompCheck()
        If p.CompCheckAction = CompCheckAction.AdjustFileSize Then
            Dim oldSize = g.MainForm.tbTargetSize.Text
            g.MainForm.tbTargetSize.Text = g.GetAutoSize(AutoCompCheckValue).ToString
            Log.WriteLine("Target size: " & oldSize & " MB -> " + g.MainForm.tbTargetSize.Text + " MB")
        ElseIf p.CompCheckAction = CompCheckAction.AdjustImageSize Then
            AutoSetImageSize()
        End If
    End Sub

    Sub AutoSetImageSize()
        If p.VideoEncoder.AutoCompCheckValue > 0 AndAlso Calc.GetPercent <> 0 AndAlso
            p.Script.IsFilterActive("Resize") Then

            Dim oldWidth = p.TargetWidth
            Dim oldHeight = p.TargetHeight

            p.TargetWidth = Calc.FixMod16(CInt((p.SourceHeight - p.CropTop - p.CropBottom) * Calc.GetTargetDAR()))

            Dim cropw = p.SourceWidth - p.CropLeft - p.CropRight

            If p.TargetWidth > cropw Then
                p.TargetWidth = cropw
            End If

            p.TargetHeight = Calc.FixMod16(CInt(p.TargetWidth / Calc.GetTargetDAR()))

            While Calc.GetPercent < p.VideoEncoder.AutoCompCheckValue
                If p.TargetWidth - 16 >= 320 Then
                    p.TargetWidth -= 16
                    p.TargetHeight = Calc.FixMod16(CInt(p.TargetWidth / Calc.GetTargetDAR()))
                Else
                    Exit While
                End If
            End While

            g.MainForm.tbTargetWidth.Text = p.TargetWidth.ToString
            g.MainForm.tbTargetHeight.Text = p.TargetHeight.ToString

            Log.WriteLine("Target image size: " & oldWidth.ToString & "x" & oldHeight.ToString & " -> " & p.TargetWidth.ToString & "x" & p.TargetHeight.ToString)

            If p.AutoSmartCrop Then
                g.MainForm.StartSmartCrop()
            End If
        End If
    End Sub

    Overrides Sub Clean()
        Muxer.Clean()
    End Sub

    Overridable Function GetError() As String
        Return Nothing
    End Function

    Sub OnStateChange()
        g.MainForm.UpdateEncoderStateRelatedControls()
        g.MainForm.SetEncoderControl(p.VideoEncoder.CreateEditControl)
        g.MainForm.lgbEncoder.Text = g.ConvertPath(p.VideoEncoder.Name).Shorten(38)
        g.MainForm.llMuxer.Text = p.VideoEncoder.Muxer.OutputExt.ToUpper
        g.MainForm.UpdateSizeOrBitrate()
    End Sub

    Public Enum Modes
        First = 1
        Second = 2
        CompCheck = 4
    End Enum

    Sub OpenMuxerConfigDialog()
        Dim m = ObjectHelp.GetCopy(Of Muxer)(Muxer)

        If m.Edit = DialogResult.OK Then
            Muxer = m
            g.MainForm.llMuxer.Text = Muxer.OutputExt.ToUpper
            g.MainForm.Refresh()
            g.MainForm.UpdateSizeOrBitrate()
            g.MainForm.Assistant()
        End If
    End Sub

    Function OpenMuxerProfilesDialog() As DialogResult
        Using f As New ProfilesForm("Muxer Profiles", s.MuxerProfiles,
                                    AddressOf LoadMuxer,
                                    AddressOf GetMuxerProfile,
                                    AddressOf Muxer.GetDefaults)
            Return f.ShowDialog()
        End Using
    End Function

    Public Sub LoadMuxer(profile As Profile)
        Muxer = DirectCast(ObjectHelp.GetCopy(profile), Muxer)
        Muxer.Init()
        g.MainForm.llMuxer.Text = Muxer.OutputExt.ToUpper
        Dim newPath = p.TargetFile.ChangeExt(Muxer.OutputExt)
        If p.SourceFile <> "" AndAlso newPath.ToLower = p.SourceFile.ToLower Then newPath = newPath.Dir + newPath.Base + "_new" + newPath.ExtFull
        g.MainForm.tbTargetFile.Text = newPath
        g.MainForm.RecalcBitrate()
        g.MainForm.Assistant()
    End Sub

    Private Function GetMuxerProfile() As Profile
        Dim sb As New SelectionBox(Of Muxer)

        sb.Title = "New Profile"
        sb.Text = "Please select a profile."

        sb.AddItem("Current Project", Muxer)

        For Each i In StaxRip.Muxer.GetDefaults()
            sb.AddItem(i)
        Next

        If sb.Show = DialogResult.OK Then Return sb.SelectedValue

        Return Nothing
    End Function

    Shared Function GetDefaults() As List(Of VideoEncoder)
        Dim ret As New List(Of VideoEncoder)

        ret.Add(New x264Enc)
        ret.Add(New x265Enc)

        Dim nvidia264 As New NVEnc()
        ret.Add(nvidia264)

        Dim nvidia265 As New NVEnc()
        nvidia265.Params.Codec.Value = 1
        ret.Add(nvidia265)

        ret.Add(New QSVEnc())

        Dim intel265 As New QSVEnc()
        intel265.Params.Codec.Value = 1
        ret.Add(intel265)

        ret.Add(New VCEEnc())

        Dim amd265 As New VCEEnc()
        amd265.Params.Codec.Value = 1
        ret.Add(amd265)

        Dim ffmpeg = New ffmpegEnc()

        Dim xvid As New BatchEncoder()
        xvid.OutputFileTypeValue = "avi"
        xvid.Name = "XviD"
        xvid.Muxer = New ffmpegMuxer("AVI")
        xvid.QualityMode = True
        xvid.CommandLines = "xvid_encraw -cq 2 -smoother 0 -max_key_interval 250 -nopacked -vhqmode 4 -qpel -notrellis -max_bframes 1 -bvhq -bquant_ratio 162 -bquant_offset 0 -threads 1 -i ""%script_file%"" -avi ""%encoder_out_file%"" -par %target_sar%"
        ret.Add(xvid)

        For x = 0 To ffmpeg.Params.Codec.Options.Length - 1
            Dim ffmpeg2 = New ffmpegEnc()
            ffmpeg2.Params.Codec.Value = x
            ret.Add(ffmpeg2)
        Next

        Dim Gif As New BatchEncoder()
        Gif.OutputFileTypeValue = "gif"
        Gif.Name = "Command Line | Gif Maker"
        Gif.QualityMode = True
        Gif.Muxer = New NullMuxer("No Muxing")
        Gif.CommandLines = "ffmpeg -i ""%script_file%"" -vf ""fps=15,scale=%target_width%:-1:flags=spline,palettegen=stats_mode=diff"" -loglevel quiet -y ""%target_temp_file%.png"" || exit" + BR + "ffmpeg -i ""%script_file%"" -i ""%target_temp_file%.png"" -lavfi ""fps=15,scale=%target_width%:-1:flags=spline [x]; [x][1:v] paletteuse=dither=floyd_steinberg"" -loglevel quiet -y ""%target_file%"""
        ret.Add(Gif)

        Dim Thumbs As New BatchEncoder()
        Thumbs.OutputFileTypeValue = "jpg"
        Thumbs.Name = "Command Line | jpg Maker"
        Thumbs.QualityMode = True
        Thumbs.Muxer = New NullMuxer("No Muxing")
        Thumbs.CommandLines = "wsl python Thumbnailer.py /mnt/c/Users/Revan/Desktop/mtn/mtn ""/mnt/c/Users/Revan/Desktop/Lara.avi"" -c 4 -r 6 -w 1280 -h 150 -j 95 -D 12 -O /mnt/c/Users/Revan/Desktop -f /mnt/c/Users/Revan/Desktop/mtn/LiberationMono-Bold.ttf"
        ret.Add(Thumbs)

        Dim x264cli As New BatchEncoder()
        x264cli.OutputFileTypeValue = "h264"
        x264cli.Name = "Command Line | x264"
        x264cli.Muxer = New MkvMuxer()
        x264cli.CommandLines = "x264 --pass 1 --bitrate %video_bitrate% --stats ""%target_temp_file%.stats"" --output NUL ""%script_file%"" || exit" + BR + "x264 --pass 2 --bitrate %video_bitrate% --stats ""%target_temp_file%.stats"" --output ""%encoder_out_file%"" ""%script_file%"""
        x264cli.CompCheckCommandLines = "x264 --crf 18 --output ""%target_temp_file%_CompCheck.%encoder_ext%"" ""%target_temp_file%_CompCheck.%script_ext%"""
        ret.Add(x264cli)

        Dim nvencH265 As New BatchEncoder()
        nvencH265.OutputFileTypeValue = "h265"
        nvencH265.Name = "Command Line | Nvidia H.265"
        nvencH265.Muxer = New MkvMuxer()
        nvencH265.QualityMode = True
        nvencH265.CommandLines = "NVEncC64 --sar %target_sar% --codec h265 --cqp 20 -i ""%script_file%"" -o ""%encoder_out_file%"""
        ret.Add(nvencH265)

        ret.Add(New NullEncoder())

        Return ret
    End Function

    Function CompareToVideoEncoder(other As VideoEncoder) As Integer Implements System.IComparable(Of VideoEncoder).CompareTo
        Return Name.CompareTo(other.Name)
    End Function

    Overridable Sub RunCompCheck()
    End Sub

    Shared Sub SaveProfile(encoder As VideoEncoder)
        Dim name = InputBox.Show("Please enter a profile name.", "Profile Name", encoder.Name)

        If name <> "" Then
            encoder.Name = name

            For Each i In From prof In s.VideoEncoderProfiles.ToArray
                          Where prof.GetType Is encoder.GetType

                If i.Name = name Then
                    s.VideoEncoderProfiles(s.VideoEncoderProfiles.IndexOf(i)) = encoder
                    Exit Sub
                End If
            Next

            s.VideoEncoderProfiles.Insert(0, encoder)
        End If
    End Sub

    Overrides Function Edit() As DialogResult
        Using f As New ControlHostForm(Name)
            f.AddControl(CreateEditControl, Nothing)
            f.ShowDialog()
        End Using

        Return DialogResult.OK
    End Function

    Public Class MenuList
        Inherits List(Of KeyValuePair(Of String, Action))

        Overloads Sub Add(text As String, action As Action)
            Add(New KeyValuePair(Of String, Action)(text, action))
        End Sub
    End Class
End Class

<Serializable()>
Public MustInherit Class BasicVideoEncoder
    Inherits VideoEncoder

    MustOverride ReadOnly Property CommandLineParams As CommandLineParams

    Public Overrides Sub ImportCommandLine(commandLine As String)
        ImportCommandLine(commandLine, CommandLineParams)
    End Sub

    Overloads Shared Sub ImportCommandLine(commandLine As String, params As CommandLineParams)
        Try
            If commandLine = "" Then Exit Sub

            For Each i In {"tune", "preset", "profile"}
                Dim match = Regex.Match(commandLine, "(.*)(--" + i + "\s\w+)(.*)")
                If match.Success Then commandLine = match.Groups(2).Value + " " + match.Groups(1).Value + " " + match.Groups(3).Value
            Next

            Dim a = commandLine.SplitNoEmptyAndWhiteSpace(" ")

            For x = 0 To a.Length - 1
                For Each param In params.Items
                    If Not param.ImportAction Is Nothing AndAlso
                        param.GetSwitches.Contains(a(x)) AndAlso a.Length - 1 > x Then

                        param.ImportAction.Invoke(a(x + 1))
                        params.RaiseValueChanged(param)
                        Exit For
                    End If

                    If TypeOf param Is BoolParam Then
                        Dim boolParam = DirectCast(param, BoolParam)

                        If boolParam.GetSwitches.Contains(a(x)) Then
                            boolParam.Value = True
                            params.RaiseValueChanged(param)
                            Exit For
                        End If
                    ElseIf TypeOf param Is NumParam Then
                        Dim numParam = DirectCast(param, NumParam)

                        If numParam.GetSwitches.Contains(a(x)) AndAlso
                            a.Length - 1 > x AndAlso a(x + 1).IsDouble Then

                            numParam.Value = a(x + 1).ToDouble
                            params.RaiseValueChanged(param)
                            Exit For
                        End If
                    ElseIf TypeOf param Is OptionParam Then
                        Dim optionParam = DirectCast(param, OptionParam)

                        If optionParam.GetSwitches.Contains(a(x)) AndAlso a.Length - 1 > x Then
                            Dim exitFor As Boolean

                            If optionParam.IntegerValue Then
                                For xOpt = 0 To optionParam.Options.Length - 1
                                    If a(x + 1) = xOpt.ToString Then
                                        optionParam.Value = xOpt
                                        params.RaiseValueChanged(param)
                                        exitFor = True
                                        Exit For
                                    End If
                                Next
                            Else
                                For xOpt = 0 To optionParam.Options.Length - 1
                                    If a(x + 1).Trim(""""c).ToLower = optionParam.Options(xOpt).ToLower.Replace(" ", "") Then
                                        optionParam.Value = xOpt
                                        params.RaiseValueChanged(param)
                                        exitFor = True
                                        Exit For
                                    End If
                                Next
                            End If

                            If exitFor Then Exit For
                        End If
                    ElseIf TypeOf param Is StringParam Then
                        Dim stringParam = DirectCast(param, StringParam)

                        If stringParam.GetSwitches.Contains(a(x)) AndAlso a.Length - 1 > x Then
                            stringParam.Value = a(x + 1).Trim(""""c)
                            params.RaiseValueChanged(param)
                            Exit For
                        End If
                    End If
                Next
            Next
        Catch ex As Exception
            g.ShowException(ex)
        End Try
    End Sub
End Class

<Serializable()>
Public Class BatchEncoder
    Inherits VideoEncoder

    Sub New()
        Name = "Command Line"
        Muxer = New MkvMuxer()
    End Sub

    Property CommandLines As String = ""
    Property CompCheckCommandLines As String = ""

    Property OutputFileTypeValue As String

    Overrides ReadOnly Property OutputExt As String
        Get
            If OutputFileTypeValue = "" Then OutputFileTypeValue = "h264"
            Return OutputFileTypeValue
        End Get
    End Property

    Overrides Sub ShowConfigDialog()
        Using f As New BatchVideoEncoderForm(Me)
            If f.ShowDialog() = DialogResult.OK Then
                OnStateChange()
            End If
        End Using
    End Sub

    Overrides Function GetMenu() As MenuList
        Dim ret As New MenuList

        ret.Add("Codec Configuration", AddressOf ShowConfigDialog)

        If IsCompCheckEnabled Then
            ret.Add("Run Compressibility Check", AddressOf RunCompCheck)
        End If

        ret.Add("Container Configuration", AddressOf OpenMuxerConfigDialog)

        Return ret
    End Function

    Function GetSkipStrings(commands As String) As String()
        If commands.Contains("xvid_encraw") Then
            Return {"key="}
        ElseIf commands.Contains("x264") Then
            Return {"%]"}
        ElseIf commands.Contains("NVEnc") Then
            Return {"frames: "}
        Else
            Return {" [ETA ", ", eta ", "frames: ", "frame= "}
        End If
    End Function
    Function GetBatchCode(value As String) As String
        Dim ret = ""

        For Each pack In Package.Items.Values
            If TypeOf pack Is PluginPackage Then Continue For
            Dim dir = pack.GetDir
            If Not Directory.Exists(dir) Then Continue For
            If Not dir.Contains(Folder.Startup) Then Continue For

            If value.ToLower.Contains(pack.Name.ToLower) Then
                ret += "@set PATH=" + dir + ";%PATH%" + BR
            End If
        Next

        Return ret + BR + value
    End Function

    Overrides Sub Encode()
        p.Script.Synchronize()

        Dim batchPath = p.TempDir + p.TargetFile.Base + "_encode.bat"
        Dim batchCode = Proc.WriteBatchFile(batchPath, GetBatchCode(Macro.Expand(CommandLines).Trim))

        Using proc As New Proc
            proc.Header = "Video encoding command line encoder: " + Name
            proc.SkipStrings = GetSkipStrings(CommandLines)
            proc.WriteLog(batchCode + BR2)
            proc.File = "cmd.exe"
            proc.Arguments = "/C call """ + batchPath + """"

            Try
                proc.Start()
            Catch ex As AbortException
                Throw ex
            Catch ex As Exception
                g.ShowException(ex)
                Throw New AbortException
            End Try
        End Using
    End Sub

    Overrides Sub RunCompCheck()
        If CompCheckCommandLines = "" OrElse CompCheckCommandLines.Trim = "" Then
            ShowConfigDialog()
            Exit Sub
        End If

        If Not g.VerifyRequirements Then Exit Sub
        If Not g.IsValidSource Then Exit Sub

        Log.WriteHeader("Compressibility Check")

        Dim script As New VideoScript
        script.Engine = p.Script.Engine
        script.Filters = p.Script.GetFiltersCopy
        Dim code As String
        Dim every = ((100 \ p.CompCheckRange) * 14).ToString

        If script.Engine = ScriptEngine.AviSynth Then
            code = "SelectRangeEvery(" + every + ",14)"
        Else
            code = "fpsnum = clip.fps_num" + BR + "fpsden = clip.fps_den" + BR +
                "clip = core.std.SelectEvery(clip = clip, cycle = " + every + ", offsets = range(14))" + BR +
                "clip = core.std.AssumeFPS(clip = clip, fpsnum = fpsnum, fpsden = fpsden)"
        End If

        Log.WriteLine(code + BR2)
        script.Filters.Add(New VideoFilter("aaa", "aaa", code))
        script.Path = p.TempDir + p.TargetFile.Base + "_CompCheck." + script.FileType
        script.Synchronize()

        Dim batchPath = p.TempDir + p.TargetFile.Base + "_CompCheck.bat"
        Dim batchCode = Proc.WriteBatchFile(batchPath, GetBatchCode(Macro.Expand(CompCheckCommandLines)))
        Log.WriteLine(batchCode + BR2)

        Using proc As New Proc
            proc.SkipStrings = GetSkipStrings(batchCode)
            proc.File = "cmd.exe"
            proc.Arguments = "/C call """ + batchPath + """"

            Try
                proc.Start()
            Catch ex As AbortException
                Exit Sub
            Catch ex As Exception
                g.ShowException(ex)
                Exit Sub
            End Try
        End Using

        Dim bits = (New FileInfo(p.TempDir + p.TargetFile.Base + "_CompCheck." + OutputExt).Length) * 8
        p.Compressibility = (bits / script.GetFrames) / (p.TargetWidth * p.TargetHeight)

        OnAfterCompCheck()

        g.MainForm.Assistant()

        Log.WriteLine(CInt(Calc.GetPercent).ToString() + " %")
    End Sub
End Class

<Serializable()>
Public Class NullEncoder
    Inherits VideoEncoder

    Sub New()
        Name = "Copy/Mux"
        Muxer = New MkvMuxer()
        QualityMode = True
    End Sub

    Function GetSourceFile() As String
        For Each i In {".h264", ".avc", ".h265", ".hevc", ".mpg", ".avi"}
            If File.Exists(p.SourceFile.DirAndBase + "_out" + i) Then
                Return p.SourceFile.DirAndBase + "_out" + i
            ElseIf File.Exists(p.TempDir + p.TargetFile.Base + "_out" + i) Then
                Return p.TempDir + p.TargetFile.Base + "_out" + i
            End If
        Next

        If FileTypes.VideoText.Contains(p.SourceFile.Ext) Then
            Return p.LastOriginalSourceFile
        Else
            Return p.SourceFile
        End If
    End Function

    Overrides ReadOnly Property OutputPath As String
        Get
            Dim sourceFile = GetSourceFile()

            If Not p.VideoEncoder.Muxer.IsSupported(sourceFile.Ext) Then
                Select Case sourceFile.Ext
                    Case "mkv"
                        Dim streams = MediaInfo.GetVideoStreams(sourceFile)
                        If streams.Count = 0 Then Return sourceFile
                        Return p.TempDir + sourceFile.Base + streams(0).ExtFull
                End Select
            End If

            Return sourceFile
        End Get
    End Property

    Overrides ReadOnly Property OutputExt As String
        Get
            Return OutputPath.Ext
        End Get
    End Property

    Overrides Sub Encode()
        Dim sourceFile = GetSourceFile()

        If Not p.VideoEncoder.Muxer.IsSupported(sourceFile.Ext) Then
            Select Case FilePath.GetExt(sourceFile)
                Case "mkv"
                    mkvDemuxer.Demux(sourceFile, Nothing, Nothing, Nothing, p, False, True)
            End Select
        End If
    End Sub

    Overrides Function GetMenu() As MenuList
        Dim ret As New MenuList
        ret.Add("Container Configuration", AddressOf OpenMuxerConfigDialog)
        Return ret
    End Function

    Overrides Sub ShowConfigDialog()
    End Sub
End Class