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staxrip/Encoding/NVEnc.vb
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stax76 8d6b277f90 -
2017-07-07 17:11:25 +02:00

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Imports StaxRip.CommandLine
Imports StaxRip.UI
<Serializable()>
Public Class NVEnc
Inherits BasicVideoEncoder
Property ParamsStore As New PrimitiveStore
Public Overrides ReadOnly Property DefaultName As String
Get
Return "NVIDIA " + Params.Codec.OptionText
End Get
End Property
<NonSerialized>
Private ParamsValue As EncoderParams
Property Params As EncoderParams
Get
If ParamsValue Is Nothing Then
ParamsValue = New EncoderParams
ParamsValue.Init(ParamsStore)
End If
Return ParamsValue
End Get
Set(value As EncoderParams)
ParamsValue = value
End Set
End Property
Overrides Sub ShowConfigDialog()
Dim newParams As New EncoderParams
Dim store = DirectCast(ObjectHelp.GetCopy(ParamsStore), PrimitiveStore)
newParams.Init(store)
Using form As New CommandLineForm(newParams)
Dim saveProfileAction = Sub()
Dim enc = ObjectHelp.GetCopy(Of NVEnc)(Me)
Dim params2 As New EncoderParams
Dim store2 = DirectCast(ObjectHelp.GetCopy(store), PrimitiveStore)
params2.Init(store2)
enc.Params = params2
enc.ParamsStore = store2
SaveProfile(enc)
End Sub
form.cms.Items.Add(New ActionMenuItem("Check Hardware", Sub() MsgInfo(ProcessHelp.GetStdOut(Package.NVEnc.Path, "--check-hw"))))
form.cms.Items.Add(New ActionMenuItem("Check Features", Sub() g.ShowCode("Check Features", ProcessHelp.GetStdOut(Package.NVEnc.Path, "--check-features"))))
form.cms.Items.Add(New ActionMenuItem("Check Environment", Sub() g.ShowCode("Check Environment", ProcessHelp.GetErrOut(Package.NVEnc.Path, "--check-environment"))))
ActionMenuItem.Add(form.cms.Items, "Save Profile...", saveProfileAction).SetImage(Symbol.Save)
If form.ShowDialog() = DialogResult.OK Then
Params = newParams
ParamsStore = store
OnStateChange()
End If
End Using
End Sub
Overrides ReadOnly Property OutputExt() As String
Get
Return Params.Codec.ValueText
End Get
End Property
Overrides Sub Encode()
If OutputExt = "h265" Then
Dim codecs = ProcessHelp.GetStdOut(Package.NVEnc.Path, "--check-hw").Right("Codec(s)")
If Not codecs?.ToLower.Contains("hevc") Then Throw New ErrorAbortException("NVEncC Error", "H.265/HEVC isn't supported by the graphics card.")
End If
p.Script.Synchronize()
Using proc As New Proc
proc.Header = "Video encoding"
proc.Package = Package.NVEnc
proc.SkipStrings = {"%]", " frames: "}
proc.File = "cmd.exe"
proc.Arguments = "/S /C """ + Params.GetCommandLine(True, True) + """"
proc.Start()
End Using
AfterEncoding()
End Sub
Overrides Function GetMenu() As MenuList
Dim r As New MenuList
r.Add("Encoder Options", AddressOf ShowConfigDialog)
r.Add("Container Configuration", AddressOf OpenMuxerConfigDialog)
Return r
End Function
Overrides Property QualityMode() As Boolean
Get
Return Params.Mode.Value = 0
End Get
Set(Value As Boolean)
End Set
End Property
Public Overrides ReadOnly Property CommandLineParams As CommandLineParams
Get
Return Params
End Get
End Property
Public Class EncoderParams
Inherits CommandLineParams
Sub New()
Title = "NVIDIA Encoding Options"
End Sub
Property Decoder As New OptionParam With {
.Text = "Decoder",
.Options = {"AviSynth/VapourSynth",
"NVEncC (avcuvid native)",
"NVEncC (avcuvid cuda)",
"QSVEncC (Intel)",
"ffmpeg (Intel)",
"ffmpeg (DXVA2)"},
.Values = {"avs", "nvnative", "nvcuda", "qs", "ffqsv", "ffdxva"}}
Property Mode As New OptionParam With {
.Text = "Mode",
.Expand = True,
.Switches = {"--cqp", "--cbr", "--cbrhq", "--vbr", "--vbrhq"},
.Options = {"CQP - Constant QP", "CBR - Constant Bitrate", "CBR HQ - Constant Bitrate HQ", "VBR - Variable Bitrate", "VBR HQ - Variable Bitrate HQ"},
.VisibleFunc = Function() Not Lossless.Value,
.ArgsFunc = Function() As String
Select Case Mode.Value
Case 0
Return "--cqp " & QPI.Value & ":" & QPP.Value & ":" & QPB.Value
Case 1
Return "--cbr " & p.VideoBitrate
Case 2
Return "--cbrhq " & p.VideoBitrate
Case 3
Return "--vbr " & p.VideoBitrate
Case 4
Return "--vbrhq " & p.VideoBitrate
End Select
End Function}
Property Codec As New OptionParam With {
.Switch = "--codec",
.Text = "Codec",
.Options = {"H.264", "H.265"},
.Values = {"h264", "h265"}}
Property Profile As New OptionParam With {
.Switch = "--profile",
.Text = "Profile",
.VisibleFunc = Function() Codec.ValueText = "h264",
.Options = {"Baseline", "Main", "High", "High 444"},
.InitValue = 2}
Property QPI As New NumParam With {
.Switches = {"--cqp"},
.Text = "QP I",
.Init = 20,
.VisibleFunc = Function() Mode.Value = 0,
.Config = {0, 51}}
Property QPP As New NumParam With {
.Switches = {"--cqp"},
.Text = "QP P",
.Init = 23,
.VisibleFunc = Function() Mode.Value = 0,
.Config = {0, 51}}
Property QPB As New NumParam With {
.Switches = {"--cqp"},
.Text = "QP B",
.Init = 25,
.VisibleFunc = Function() Mode.Value = 0,
.Config = {0, 51}}
Property Lossless As New BoolParam With {
.Switch = "--lossless",
.Text = "Lossless",
.VisibleFunc = Function() Codec.ValueText = "h264" AndAlso Profile.Visible}
Property KNN As New BoolParam With {
.Switch = "--vpp-knn",
.Text = "Denoise using K-nearest neighbor",
.ArgsFunc = AddressOf GetKnnArgs}
Property KnnRadius As New NumParam With {
.Text = " Radius",
.Init = 3}
Property KnnStrength As New NumParam With {
.Text = " Strength",
.Init = 0.08,
.Config = {0, 1, 0.02, 2}}
Property KnnLerp As New NumParam With {
.Text = " Lerp",
.Init = 0.2,
.Config = {0, Integer.MaxValue, 0.1, 1}}
Property KnnThLerp As New NumParam With {
.Text = " TH Lerp",
.Init = 0.8,
.Config = {0, 1, 0.1, 1}}
Property PMD As New BoolParam With {
.Switch = "--vpp-pmd",
.Text = "Denoise using PMD",
.ArgsFunc = AddressOf GetPmdArgs}
Property PmdApplyCount As New NumParam With {
.Text = " Apply Count",
.Init = 2}
Property PmdStrength As New NumParam With {
.Text = " Strength",
.Name = "PmdStrength",
.Init = 100.0,
.Config = {0, 100, 1, 1}}
Property PmdThreshold As New NumParam With {
.Text = " Threshold",
.Init = 100.0,
.Config = {0, 255, 1, 1}}
Property Deband As New BoolParam With {.Text = "Deband", .ArgsFunc = AddressOf GetDebandArgs}
Property Deband_range As New NumParam With {.Text = "range", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 127}}
Property Deband_sample As New NumParam With {.Text = "sample", .HelpSwitch = "--vpp-deband", .Init = 1, .Config = {0, 2}}
Property Deband_thre As New NumParam With {.Text = "thre", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_thre_y As New NumParam With {.Text = " thre_y", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_thre_cb As New NumParam With {.Text = " thre_cb", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_thre_cr As New NumParam With {.Text = " thre_cr", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_dither As New NumParam With {.Text = "dither", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_dither_y As New NumParam With {.Text = " dither_y", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_dither_c As New NumParam With {.Text = " dither_c", .HelpSwitch = "--vpp-deband", .Init = 15, .Config = {0, 31}}
Property Deband_seed As New NumParam With {.Text = "seed", .HelpSwitch = "--vpp-deband", .Init = 1234}
Property Deband_blurfirst As New BoolParam With {.Text = "blurfirst", .HelpSwitch = "--vpp-deband"}
Property Deband_rand_each_frame As New BoolParam With {.Text = "rand_each_frame", .HelpSwitch = "--vpp-deband"}
Property Custom As New StringParam With {.Text = "Custom", .AlwaysOn = True}
Overrides ReadOnly Property Items As List(Of CommandLineParam)
Get
If ItemsValue Is Nothing Then
ItemsValue = New List(Of CommandLineParam)
Add("Basic", Mode, Decoder, Codec,
New OptionParam With {.Switch = "--preset", .Text = "Preset", .Value = 1, .Options = {"Default", "Quality", "Performance"}},
Profile,
New OptionParam With {.Name = "LevelH264", .Switch = "--level", .Text = "Level", .VisibleFunc = Function() Codec.ValueText = "h264", .Options = {"Unrestricted", "1", "1.1", "1.2", "1.3", "2", "2.1", "2.2", "3", "3.1", "3.2", "4", "4.1", "4.2", "5", "5.1", "5.2"}},
New OptionParam With {.Name = "LevelH265", .Switch = "--level", .Text = "Level", .VisibleFunc = Function() Codec.ValueText = "h265", .Options = {"Unrestricted", "1", "2", "2.1", "3", "3.1", "4", "4.1", "5", "5.1", "5.2", "6", "6.1", "6.2"}},
New OptionParam With {.Switch = "--output-depth", .Text = "Depth", .Options = {"8-Bit", "10-Bit"}, .Values = {"8", "10"}},
QPI, QPP, QPB)
Add("Analysis",
New OptionParam With {.Switch = "--adapt-transform", .Text = "Adaptive Transform", .Options = {"Automatic", "Enabled", "Disabled"}, .Values = {"", "--adapt-transform", "--no-adapt-transform"}, .VisibleFunc = Function() Codec.ValueText = "h264"},
New NumParam With {.Switch = "--cu-min", .Text = "Minimum CU Size", .Config = {0, 32, 16}},
New NumParam With {.Switch = "--cu-max", .Text = "Maximum CU Size", .Config = {0, 64, 16}},
New BoolParam With {.Switch = "--weightp", .Text = "Enable weighted prediction in P slices"})
Add("Slice Decision",
New OptionParam With {.Switch = "--direct", .Text = "B-Direct Mode", .Options = {"Automatic", "None", "Spatial", "Temporal"}, .VisibleFunc = Function() Codec.ValueText = "h264"},
New NumParam With {.Switch = "--bframes", .Text = "B-Frames", .Init = 3, .Config = {0, 16}},
New NumParam With {.Switch = "--ref", .Text = "Ref Frames", .Init = 3, .Config = {0, 16}},
New NumParam With {.Switch = "--gop-len", .Text = "GOP Length", .Config = {0, Integer.MaxValue, 1}},
New NumParam With {.Switch = "--lookahead", .Text = "Lookahead", .Config = {0, 32}},
New BoolParam With {.Switch = "--strict-gop", .Text = "Strict GOP"},
New BoolParam With {.NoSwitch = "--no-b-adapt", .Text = "B-Adapt", .Init = True},
New BoolParam With {.NoSwitch = "--no-i-adapt", .Text = "I-Adapt", .Init = True})
Add("Rate Control",
New NumParam With {.Switch = "--qp-init", .Text = "Initial QP", .Config = {0, Integer.MaxValue, 1}},
New NumParam With {.Switch = "--qp-max", .Text = "Maximum QP", .Config = {0, Integer.MaxValue, 1}},
New NumParam With {.Switch = "--qp-min", .Text = "Minimum QP", .Config = {0, Integer.MaxValue, 1}},
New NumParam With {.Switch = "--max-bitrate", .Text = "Max Bitrate", .Init = 17500, .Config = {0, Integer.MaxValue, 1}},
New NumParam With {.Switch = "--vbv-bufsize", .Text = "VBV Bufsize", .Config = {0, Integer.MaxValue, 1}},
New NumParam With {.Switch = "--aq-strength", .Text = "AQ Strength", .Config = {0, 15}, .VisibleFunc = Function() Codec.ValueText = "h264"},
New NumParam With {.Switch = "--vbr-quality", .Text = "VBR Quality", .Config = {0, 51, 1, 1}},
New BoolParam With {.Switch = "--aq", .Text = "Adaptive Quantization"},
New BoolParam With {.Switch = "--aq-temporal", .Text = "AQ Temporal"},
Lossless)
Add("Performance",
New StringParam With {.Switch = "--perf-monitor", .Text = "Perf. Monitor"},
New OptionParam With {.Switch = "--cuda-schedule", .Text = "Cuda Schedule", .Expand = True, .InitValue = 3, .Options = {"Let cuda driver to decide", "CPU will spin when waiting GPU tasks", "CPU will yield when waiting GPU tasks", "CPU will sleep when waiting GPU tasks"}, .Values = {"auto", "spin", "yield", "sync"}},
New OptionParam With {.Switch = "--output-buf", .Text = "Output Buffer", .Options = {"8", "16", "32", "64", "128"}},
New OptionParam With {.Switch = "--output-thread", .Text = "Output Thread", .Options = {"Automatic", "Disabled", "One Thread"}, .Values = {"-1", "0", "1"}},
New NumParam With {.Switch = "--perf-monitor-interval", .Init = 500, .Config = {50, Integer.MaxValue}, .Text = "Perf. Mon. Interval"},
New BoolParam With {.Switch = "--max-procfps", .Text = "Limit performance to lower resource usage"})
Add("VUI",
New StringParam With {.Switch = "--sar", .Text = "Sample Aspect Ratio", .InitValue = "auto", .Menu = s.ParMenu, .ArgsFunc = AddressOf GetSAR},
New OptionParam With {.Switch = "--videoformat", .Text = "Videoformat", .Options = {"Undefined", "NTSC", "Component", "PAL", "SECAM", "MAC"}},
New OptionParam With {.Switch = "--colormatrix", .Text = "Colormatrix", .Options = {"Undefined", "Auto", "BT 709", "SMPTE 170 M", "BT 470 BG", "SMPTE 240 M", "YCgCo", "FCC", "GBR", "BT 2020 NC", "BT 2020 C"}},
New OptionParam With {.Switch = "--colorprim", .Text = "Colorprim", .Options = {"Undefined", "Auto", "BT 709", "SMPTE 170 M", "BT 470 M", "BT 470 BG", "SMPTE 240 M", "Film", "BT 2020"}},
New OptionParam With {.Switch = "--transfer", .Text = "Transfer", .Options = {"Undefined", "Auto", "BT 709", "SMPTE 170 M", "BT 470 M", "BT 470 BG", "SMPTE 240 M", "Linear", "Log 100", "Log 316", "IEC 61966-2-4", "BT 1361 E", "IEC 61966-2-1", "BT 2020-10", "BT 2020-12", "SMPTE-ST-2084", "SMPTE-ST-428", "ARIB-SRD-B67"}},
New BoolParam With {.Switch = "--fullrange", .Text = "Full Range", .VisibleFunc = Function() Codec.ValueText = "h264"})
Add("VPP",
New OptionParam With {.Switch = "--vpp-resize", .Text = "Resize", .Options = {"Disabled", "Default", "Bilinear", "Cubic", "Cubic_B05C03", "Cubic_bSpline", "Cubic_Catmull", "Lanczos", "NN", "NPP_Linear", "Spline 36", "Super"}},
New OptionParam With {.Switch = "--vpp-deinterlace", .Text = "Deinterlace", .VisibleFunc = Function() Decoder.ValueText = "nvnative" OrElse Decoder.ValueText = "nvcuda", .Options = {"None", "Adaptive", "Bob"}},
New OptionParam With {.Switch = "--vpp-gauss", .Text = "Gauss", .Options = {"Disabled", "3", "5", "7"}},
KNN, KnnRadius, KnnStrength, KnnLerp, KnnThLerp,
PMD, PmdApplyCount, PmdStrength, PmdThreshold)
Add("VPP | Deband",
Deband,
Deband_range,
Deband_sample,
Deband_thre,
Deband_thre_y,
Deband_thre_cb,
Deband_thre_cr,
Deband_dither,
Deband_dither_y,
Deband_dither_c,
Deband_seed,
Deband_blurfirst,
Deband_rand_each_frame)
Add("Other",
New OptionParam With {.Switch = "--mv-precision", .Text = "MV Precision", .Options = {"Automatic", "Q-pel", "Half-pel", "Full-pel"}},
New OptionParam With {.Switches = {"--cabac", "--cavlc"}, .Text = "Cabac/Cavlc", .Options = {"Disabled", "Cabac", "Cavlc"}, .Values = {"", "--cabac", "--cavlc"}},
New OptionParam With {.Switch = "--interlaced", .Switches = {"--tff", "--bff"}, .Text = "Interlaced", .VisibleFunc = Function() Codec.ValueText = "h264", .Options = {"Progressive ", "Top Field First", "Bottom Field First"}, .Values = {"", "--tff", "--bff"}},
New OptionParam With {.Switch = "--log-level", .Text = "Log Level", .Options = {"Info", "Debug", "Warn", "Error"}},
New NumParam With {.Switch = "--device", .Text = "Device", .Config = {0, 4}},
New BoolParam With {.Switch = "--deblock", .NoSwitch = "--no-deblock", .Text = "Deblock", .Init = True},
New BoolParam With {.Switch = "--bluray", .Text = "Blu-ray"},
Custom)
For Each item In ItemsValue
Dim switches = item.GetSwitches
If switches.NothingOrEmpty Then Continue For
item.HelpID = switches(0).TrimStart("-"c)
Next
End If
Return ItemsValue
End Get
End Property
Public Overrides Sub ShowHelp(id As String)
g.ShowRigayaHelp(Package.NVEnc, id)
End Sub
Protected Overrides Sub OnValueChanged(item As CommandLineParam)
KnnRadius.NumEdit.Enabled = KNN.Value
KnnStrength.NumEdit.Enabled = KNN.Value
KnnLerp.NumEdit.Enabled = KNN.Value
KnnThLerp.NumEdit.Enabled = KNN.Value
PmdApplyCount.NumEdit.Enabled = PMD.Value
PmdStrength.NumEdit.Enabled = PMD.Value
PmdThreshold.NumEdit.Enabled = PMD.Value
For Each i In {Deband_range, Deband_sample, Deband_thre, Deband_thre_y, Deband_thre_cb,
Deband_thre_cr, Deband_dither, Deband_dither_y, Deband_dither_c, Deband_seed}
i.NumEdit.Enabled = Deband.Value
Next
Deband_rand_each_frame.CheckBox.Enabled = Deband.Value
Deband_blurfirst.CheckBox.Enabled = Deband.Value
MyBase.OnValueChanged(item)
End Sub
Function GetPmdArgs() As String
If PMD.Value Then
Dim ret = ""
If PmdApplyCount.Value <> PmdApplyCount.DefaultValue Then ret += ",apply_count=" & PmdApplyCount.Value
If PmdStrength.Value <> PmdStrength.DefaultValue Then ret += ",strength=" & PmdStrength.Value
If PmdThreshold.Value <> PmdThreshold.DefaultValue Then ret += ",threshold=" & PmdThreshold.Value
If ret <> "" Then
Return "--vpp-pmd " + ret.TrimStart(","c)
Else
Return "--vpp-pmd"
End If
End If
End Function
Function GetKnnArgs() As String
If KNN.Value Then
Dim ret = ""
If KnnRadius.Value <> KnnRadius.DefaultValue Then ret += ",radius=" & KnnRadius.Value
If KnnStrength.Value <> KnnStrength.DefaultValue Then ret += ",strength=" & KnnStrength.Value.ToInvariantString
If KnnLerp.Value <> KnnLerp.DefaultValue Then ret += ",lerp=" & KnnLerp.Value.ToInvariantString
If KnnThLerp.Value <> KnnThLerp.DefaultValue Then ret += ",th_lerp=" & KnnThLerp.Value.ToInvariantString
If ret <> "" Then
Return "--vpp-knn " + ret.TrimStart(","c)
Else
Return "--vpp-knn"
End If
End If
End Function
Function GetDebandArgs() As String
Dim ret = ""
For Each i In {Deband_range, Deband_sample, Deband_thre, Deband_thre_y, Deband_thre_cb,
Deband_thre_cr, Deband_dither, Deband_dither_y, Deband_dither_c, Deband_seed}
If i.Value <> i.DefaultValue Then ret += "," + i.Text.Trim + "=" & i.Value
Next
If Deband_blurfirst.Value Then ret += "," + "blurfirst"
If Deband_rand_each_frame.Value Then ret += "," + "rand_each_frame"
If Deband.Value Then Return ("--vpp-deband " + ret.TrimStart(","c)).TrimEnd
End Function
Overrides Function GetCommandLine(includePaths As Boolean,
includeExe As Boolean,
Optional pass As Integer = 1) As String
Dim ret As String
Dim sourcePath As String
Dim targetPath = p.VideoEncoder.OutputPath.ChangeExt(p.VideoEncoder.OutputExt)
If includePaths AndAlso includeExe Then ret = Package.NVEnc.Path.Escape
Select Case Decoder.ValueText
Case "avs"
sourcePath = p.Script.Path
Case "nvnative"
sourcePath = p.LastOriginalSourceFile
Case "nvcuda"
sourcePath = p.LastOriginalSourceFile
ret += " --avcuvid cuda"
Case "qs"
sourcePath = "-"
If includePaths Then ret = If(includePaths, Package.QSVEnc.Path.Escape, "QSVEncC") + " -o - -c raw" + " -i " + If(includePaths, p.SourceFile.Escape, "path") + " | " + If(includePaths, Package.NVEnc.Path.Escape, "NVEncC")
Case "ffdxva"
sourcePath = "-"
If includePaths Then ret = If(includePaths, Package.ffmpeg.Path.Escape, "ffmpeg") + " -threads 1 -hwaccel dxva2 -i " + If(includePaths, p.SourceFile.Escape, "path") + " -f yuv4mpegpipe -pix_fmt yuv420p -loglevel fatal -hide_banner - | " + If(includePaths, Package.NVEnc.Path.Escape, "NVEncC")
Case "ffqsv"
sourcePath = "-"
If includePaths Then ret = If(includePaths, Package.ffmpeg.Path.Escape, "ffmpeg") + " -threads 1 -hwaccel qsv -i " + If(includePaths, p.SourceFile.Escape, "path") + " -f yuv4mpegpipe -pix_fmt yuv420p -loglevel fatal -hide_banner - | " + If(includePaths, Package.NVEnc.Path.Escape, "NVEncC")
End Select
Dim q = From i In Items Where i.GetArgs <> ""
If q.Count > 0 Then ret += " " + q.Select(Function(item) item.GetArgs).Join(" ")
If CInt(p.CropLeft Or p.CropTop Or p.CropRight Or p.CropBottom) <> 0 AndAlso
(p.Script.IsFilterActive("Crop", "Hardware Encoder") OrElse
(Decoder.ValueText <> "avs" AndAlso p.Script.IsFilterActive("Crop"))) Then
ret += " --crop " & p.CropLeft & "," & p.CropTop & "," & p.CropRight & "," & p.CropBottom
End If
If p.Script.IsFilterActive("Resize", "Hardware Encoder") OrElse
(Decoder.ValueText <> "avs" AndAlso p.Script.IsFilterActive("Resize")) Then
ret += " --output-res " & p.TargetWidth & "x" & p.TargetHeight
End If
If Decoder.ValueText <> "avs" Then
If p.Ranges.Count > 0 Then
ret += " --trim " + p.Ranges.Select(Function(range) range.Start & ":" & range.End).Join(",")
End If
End If
If sourcePath = "-" Then ret += " --y4m"
If includePaths Then ret += " -i " + sourcePath.Escape + " -o " + targetPath.Escape
Return ret.Trim
End Function
Public Overrides Function GetPackage() As Package
Return Package.NVEnc
End Function
End Class
End Class
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