Made it possible for each encoder to add its own parameters.

Added preset option for libx264.

convertor/view/conversion.go

@@ -7,6 +7,7 @@ import (
 	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/storage"
 	"fyne.io/fyne/v2/widget"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/convertor/view/form_items"
 	encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/kernel"
 	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/kernel/encoder"
@@ -22,7 +23,7 @@ type ConversionContract interface {
 
 type Conversion struct {
 	app                  kernel.AppContract
-	form                 *widget.Form
+	form                 *form
 	conversionMessage    *canvas.Text
 	fileForConversion    *fileForConversion
 	directoryForSaving   *directoryForSaving
@@ -49,8 +50,7 @@ func NewConversion(app kernel.AppContract, formats encoder.ConvertorFormatsContr
 	overwriteOutputFiles := newOverwriteOutputFiles(app)
 	selectEncoder := newSelectEncoder(app, formats)
 
-	form := widget.NewForm()
-	form.Items = []*widget.FormItem{
+	items := []*widget.FormItem{
 		{
 			Text:   app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{MessageID: "fileForConversionTitle"}),
 			Widget: fileForConversion.button,
@@ -80,9 +80,7 @@ func NewConversion(app kernel.AppContract, formats encoder.ConvertorFormatsContr
 			Widget: selectEncoder.SelectEncoder,
 		},
 	}
-	form.SubmitText = app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
-		MessageID: "converterVideoFilesSubmitTitle",
-	})
+	form := newForm(app, items)
 
 	return &Conversion{
 		app:                  app,
@@ -97,27 +95,41 @@ func NewConversion(app kernel.AppContract, formats encoder.ConvertorFormatsContr
 }
 
 func (c Conversion) GetContent() fyne.CanvasObject {
-	c.form.OnSubmit = c.submit
+	c.form.form.OnSubmit = c.submit
 	c.fileForConversion.AddChangeCallback(c.selectFileForConversion)
+	c.selectEncoder.AddChangeCallback(c.changeEncoder)
+	if c.selectEncoder.Encoder != nil {
+		c.selectEncoder.SelectEncoder.SetSelectedIndex(c.selectEncoder.SelectEncoder.SelectedIndex())
+	}
 
 	return container.NewVBox(
-		c.form,
+		c.form.form,
 		c.conversionMessage,
 	)
 }
 
+func (c Conversion) changeEncoder(encoder encoder2.EncoderContract) {
+	items := []*widget.FormItem{}
+
+	if form_items.Views[encoder.GetName()] != nil {
+		items = form_items.Views[encoder.GetName()](encoder, c.app)
+	}
+
+	c.form.ChangeItems(items)
+}
+
 func (c Conversion) AfterViewContent() {
-	c.form.Disable()
+	c.form.form.Disable()
 }
 
 func (c Conversion) selectFileForConversion(err error) {
 	c.conversionMessage.Text = ""
 	if err != nil {
-		c.form.Disable()
+		c.form.form.Disable()
 		return
 	}
 
-	c.form.Enable()
+	c.form.form.Enable()
 }
 
 func (c Conversion) submit() {
@@ -144,7 +156,7 @@ func (c Conversion) submit() {
 
 	c.fileForConversion.button.Disable()
 	c.directoryForSaving.button.Disable()
-	c.form.Disable()
+	c.form.form.Disable()
 
 	setting := HandleConvertSetting{
 		FileInput:            *c.fileForConversion.file,
@@ -157,13 +169,13 @@ func (c Conversion) submit() {
 	c.enableFormConversion()
 
 	c.fileForConversion.message.Text = ""
-	c.form.Disable()
+	c.form.form.Disable()
 }
 
 func (c Conversion) enableFormConversion() {
 	c.fileForConversion.button.Enable()
 	c.directoryForSaving.button.Enable()
-	c.form.Enable()
+	c.form.form.Enable()
 }
 
 type fileForConversion struct {
@@ -301,17 +313,22 @@ type selectEncoder struct {
 	SelectFormat   *widget.Select
 	SelectEncoder  *widget.Select
 	Encoder        encoder2.EncoderContract
+
+	changeCallbacks map[int]func(encoder encoder2.EncoderContract)
 }
 
 func newSelectEncoder(app kernel.AppContract, formats encoder.ConvertorFormatsContract) *selectEncoder {
-	selectEncoder := &selectEncoder{}
+	selectEncoder := &selectEncoder{
+		changeCallbacks: map[int]func(encoder encoder2.EncoderContract){},
+	}
 
 	encoders := map[int]encoder2.EncoderDataContract{}
 	selectEncoder.SelectEncoder = widget.NewSelect([]string{}, func(s string) {
 		if encoders[selectEncoder.SelectEncoder.SelectedIndex()] == nil {
 			return
 		}
-		selectEncoder.Encoder = encoders[selectEncoder.SelectEncoder.SelectedIndex()].NewEncoder()
+		selectEncoderData := encoders[selectEncoder.SelectEncoder.SelectedIndex()]
+		selectEncoder.ChangeEncoder(selectEncoderData.NewEncoder())
 	})
 
 	formatSelected := ""
@@ -325,8 +342,9 @@ func newSelectEncoder(app kernel.AppContract, formats encoder.ConvertorFormatsCo
 			return
 		}
 		encoderOptions := []string{}
-		encoders = format.GetEncoders()
-		for _, e := range encoders {
+		encoders = map[int]encoder2.EncoderDataContract{}
+		for _, e := range format.GetEncoders() {
+			encoders[len(encoders)] = e
 			encoderOptions = append(encoderOptions, app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{MessageID: "encoder_" + e.GetTitle()}))
 		}
 		selectEncoder.SelectEncoder.SetOptions(encoderOptions)
@@ -364,11 +382,27 @@ func newSelectEncoder(app kernel.AppContract, formats encoder.ConvertorFormatsCo
 		}
 	})
 	selectEncoder.SelectFileType.Horizontal = true
+	selectEncoder.SelectFileType.Required = true
 	selectEncoder.SelectFileType.SetSelected(encoderGroupVideo)
 
 	return selectEncoder
 }
 
+func (e *selectEncoder) ChangeEncoder(encoder encoder2.EncoderContract) {
+	e.Encoder = encoder
+	e.eventSelectEncoder(e.Encoder)
+}
+
+func (e *selectEncoder) AddChangeCallback(callback func(encoder encoder2.EncoderContract)) {
+	e.changeCallbacks[len(e.changeCallbacks)] = callback
+}
+
+func (e *selectEncoder) eventSelectEncoder(encoder encoder2.EncoderContract) {
+	for _, changeCallback := range e.changeCallbacks {
+		changeCallback(encoder)
+	}
+}
+
 func setStringErrorStyle(text *canvas.Text) {
 	text.Color = color.RGBA{R: 255, G: 0, B: 0, A: 255}
 	text.Refresh()
@@ -383,3 +417,28 @@ func showConversionMessage(conversionMessage *canvas.Text, err error) {
 	conversionMessage.Text = err.Error()
 	setStringErrorStyle(conversionMessage)
 }
+
+type form struct {
+	form  *widget.Form
+	items []*widget.FormItem
+}
+
+func newForm(app kernel.AppContract, items []*widget.FormItem) *form {
+	f := widget.NewForm()
+	f.SubmitText = app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
+		MessageID: "converterVideoFilesSubmitTitle",
+	})
+	f.Items = items
+
+	return &form{
+		form:  f,
+		items: items,
+	}
+}
+
+func (f form) ChangeItems(items []*widget.FormItem) {
+	f.form.Items = f.items
+	f.form.Refresh()
+	f.form.Items = append(f.form.Items, items...)
+	f.form.Refresh()
+}

convertor/view/form_items/form.go

@@ -0,0 +1,12 @@
+package form_items
+
+import (
+	"fyne.io/fyne/v2/widget"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/convertor/view/form_items/libx264"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/kernel"
+)
+
+var Views = map[string]func(encoder encoder.EncoderContract, app kernel.AppContract) []*widget.FormItem{
+	"libx264": libx264.View,
+}

convertor/view/form_items/libx264/view.go

@@ -0,0 +1,65 @@
+package libx264
+
+import (
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder/libx264"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/kernel"
+	"github.com/nicksnyder/go-i18n/v2/i18n"
+)
+
+func View(encoder encoder.EncoderContract, app kernel.AppContract) []*widget.FormItem {
+	items := []*widget.FormItem{}
+
+	items = append(items, presetParameter(encoder, app)...)
+
+	return items
+}
+
+func presetParameter(encoder encoder.EncoderContract, app kernel.AppContract) []*widget.FormItem {
+	parameter, err := encoder.GetParameter("preset")
+	if err != nil {
+		return nil
+	}
+
+	presets := map[string]string{}
+	presetsForSelect := []string{}
+	presetDefault := ""
+
+	for _, name := range libx264.Presets {
+		title := app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{MessageID: "preset_" + name})
+		presetsForSelect = append(presetsForSelect, title)
+		presets[title] = name
+		if name == parameter.Get() {
+			presetDefault = title
+		}
+	}
+
+	elementSelect := widget.NewSelect(presetsForSelect, func(s string) {
+		if presets[s] == "" {
+			return
+		}
+		parameter.Set(presets[s])
+	})
+	elementSelect.SetSelected(presetDefault)
+	elementSelect.Hide()
+
+	checkboxTitle := app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{MessageID: "parameterCheckbox"})
+	elementCheckbox := widget.NewCheck(checkboxTitle, func(b bool) {
+		if b == true {
+			parameter.SetEnable()
+			elementSelect.Show()
+			return
+		}
+		parameter.SetDisable()
+		elementSelect.Hide()
+	})
+
+	return []*widget.FormItem{
+		{
+			Text:   app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{MessageID: "formPreset"}),
+			Widget: container.NewVBox(elementCheckbox, elementSelect),
+		},
+	}
+}

encoder/apng/encoder.go

@@ -2,15 +2,13 @@ package apng
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "apng"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "apng"}
+	return encoder2.NewEncoder("apng", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/bmp/encoder.go

@@ -2,15 +2,13 @@ package bmp
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "bmp"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "bmp"}
+	return encoder2.NewEncoder("bmp", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/encoder.go

@@ -1,7 +1,20 @@
 package encoder
 
+import "errors"
+
 type EncoderContract interface {
+	GetName() string
 	GetParams() []string
+	GetParameter(name string) (ParameterContract, error)
+}
+
+type ParameterContract interface {
+	GetName() string
+	Set(string) error
+	Get() string
+	IsEnabled() bool
+	SetEnable()
+	SetDisable()
 }
 
 type EncoderDataContract interface {
@@ -77,3 +90,80 @@ func GetListFileType() []FileTypeContract {
 		FileType(Image),
 	}
 }
+
+type Encoder struct {
+	name       string
+	parameters map[string]ParameterContract
+	getParams  func(parameters map[string]ParameterContract) []string
+}
+
+func NewEncoder(name string, parameters map[string]ParameterContract, getParams func(parameters map[string]ParameterContract) []string) *Encoder {
+	return &Encoder{
+		name:       name,
+		parameters: parameters,
+		getParams:  getParams,
+	}
+}
+
+func (e *Encoder) GetName() string {
+	return e.name
+}
+
+func (e *Encoder) GetParams() []string {
+	return e.getParams(e.parameters)
+}
+
+func (e *Encoder) GetParameter(name string) (ParameterContract, error) {
+	if e.parameters[name] == nil {
+		return nil, errors.New("parameter not found")
+	}
+
+	return e.parameters[name], nil
+}
+
+type Parameter struct {
+	name         string
+	isEnabled    bool
+	parameter    string
+	setParameter func(string) (string, error)
+}
+
+func NewParameter(name string, isEnabled bool, defaultParameter string, setParameter func(string) (string, error)) *Parameter {
+	return &Parameter{
+		name:         name,
+		isEnabled:    isEnabled,
+		parameter:    defaultParameter,
+		setParameter: setParameter,
+	}
+}
+
+func (p *Parameter) GetName() string {
+	return p.name
+}
+
+func (p *Parameter) Set(s string) (err error) {
+	if p.setParameter != nil {
+		s, err = p.setParameter(s)
+		if err != nil {
+			return err
+		}
+	}
+	p.parameter = s
+	return nil
+}
+
+func (p *Parameter) Get() string {
+	return p.parameter
+}
+
+func (p *Parameter) IsEnabled() bool {
+	return p.isEnabled
+}
+
+func (p *Parameter) SetEnable() {
+	p.isEnabled = true
+}
+
+func (p *Parameter) SetDisable() {
+	p.isEnabled = false
+}

encoder/flv/encoder.go

@@ -2,15 +2,13 @@ package flv
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "flv"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "flv"}
+	return encoder2.NewEncoder("flv", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/gif/encoder.go

@@ -2,15 +2,13 @@ package gif
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "gif"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "gif"}
+	return encoder2.NewEncoder("gif", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/h264_nvenc/encoder.go

@@ -4,15 +4,13 @@ import (
 	encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 )
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "h264_nvenc"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "h264_nvenc"}
+	return encoder2.NewEncoder("h264_nvenc", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libmp3lame/encoder.go

@@ -2,15 +2,13 @@ package libmp3lame
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "libmp3lame"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "libmp3lame"}
+	return encoder2.NewEncoder("libmp3lame", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libshine/encoder.go

@@ -2,15 +2,13 @@ package libshine
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "libshine"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "libshine"}
+	return encoder2.NewEncoder("libshine", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libtwolame/encoder.go

@@ -2,15 +2,13 @@ package libtwolame
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "libtwolame"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "libtwolame"}
+	return encoder2.NewEncoder("libtwolame", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libvpx/encoder.go

@@ -2,15 +2,13 @@ package libvpx
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "libvpx"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libvpx"}
+	return encoder2.NewEncoder("libvpx", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libvpx_vp9/encoder.go

@@ -2,15 +2,13 @@ package libvpx_vp9
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "libvpx-vp9"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libvpx-vp9"}
+	return encoder2.NewEncoder("libvpx_vp9", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libwebp/encoder.go

@@ -2,15 +2,13 @@ package libwebp
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "libwebp"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libwebp"}
+	return encoder2.NewEncoder("libwebp", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libwebp_anim/encoder.go

@@ -2,15 +2,13 @@ package libwebp_anim
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "libwebp_anim"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libwebp_anim"}
+	return encoder2.NewEncoder("libwebp_anim", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libx264/encoder.go

@@ -1,16 +1,38 @@
 package libx264
 
-import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
+import (
+	"errors"
+	encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
+)
 
-type encoder struct {
+var Presets = []string{
+	"ultrafast",
+	"superfast",
+	"veryfast",
+	"faster",
+	"fast",
+	"medium",
+	"slow",
+	"slower",
+	"veryslow",
+	"placebo",
 }
 
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{
+		"preset": newParameterPreset(),
+	}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		params := []string{"-c:v", "libx264"}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libx264"}
+		if parameters["preset"] != nil && parameters["preset"].IsEnabled() {
+			params = append(params, "-preset", parameters["preset"].Get())
+		}
+
+		return params
+	}
+
+	return encoder2.NewEncoder("libx264", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {
@@ -19,3 +41,16 @@ func NewData() encoder2.EncoderDataContract {
 	fileType := encoder2.FileType(encoder2.Video)
 	return encoder2.NewData(title, formats, fileType, NewEncoder)
 }
+
+func newParameterPreset() encoder2.ParameterContract {
+	setParameter := func(s string) (string, error) {
+		for _, value := range Presets {
+			if value == s {
+				return value, nil
+			}
+		}
+
+		return "", errors.New("preset not found")
+	}
+	return encoder2.NewParameter("preset", false, "medium", setParameter)
+}

encoder/libx265/encoder.go

@@ -2,15 +2,13 @@ package libx265
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "libx265"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libx265"}
+	return encoder2.NewEncoder("libx265", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/libxvid/encoder.go

@@ -2,15 +2,13 @@ package libxvid
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "libxvid"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "libxvid"}
+	return encoder2.NewEncoder("libxvid", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/mjpeg/encoder.go

@@ -2,15 +2,13 @@ package mjpeg
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "mjpeg"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "mjpeg"}
+	return encoder2.NewEncoder("mjpeg", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/mp2/encoder.go

@@ -2,15 +2,13 @@ package mp2
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "mp2"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "mp2"}
+	return encoder2.NewEncoder("mp2", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/mp2fixed/encoder.go

@@ -2,15 +2,13 @@ package mp2fixed
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "mp2fixed"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "mp2fixed"}
+	return encoder2.NewEncoder("mp2fixed", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/mpeg1video/encoder.go

@@ -2,15 +2,13 @@ package mpeg1video
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "mpeg1video"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "mpeg1video"}
+	return encoder2.NewEncoder("mpeg1video", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/mpeg2video/encoder.go

@@ -2,15 +2,13 @@ package mpeg2video
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "mpeg2video"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "mpeg2video"}
+	return encoder2.NewEncoder("mpeg2video", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/mpeg4/encoder.go

@@ -2,15 +2,13 @@ package mpeg4
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "mpeg4"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "mpeg4"}
+	return encoder2.NewEncoder("mpeg4", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/msmpeg4/encoder.go

@@ -2,15 +2,13 @@ package msmpeg4
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "msmpeg4"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "msmpeg4"}
+	return encoder2.NewEncoder("msmpeg4", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/msmpeg4v2/encoder.go

@@ -2,15 +2,13 @@ package msmpeg4v2
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "msmpeg4v2"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "msmpeg4v2"}
+	return encoder2.NewEncoder("msmpeg4v2", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/msvideo1/encoder.go

@@ -2,15 +2,13 @@ package msvideo1
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "msvideo1"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "msvideo1"}
+	return encoder2.NewEncoder("msvideo1", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/png/encoder.go

@@ -2,15 +2,13 @@ package png
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "png"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "png"}
+	return encoder2.NewEncoder("png", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/qtrle/encoder.go

@@ -2,15 +2,13 @@ package qtrle
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "qtrle"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "qtrle"}
+	return encoder2.NewEncoder("qtrle", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/sgi/encoder.go

@@ -2,15 +2,13 @@ package sgi
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "sgi"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "sgi"}
+	return encoder2.NewEncoder("sgi", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/tiff/encoder.go

@@ -2,15 +2,13 @@ package tiff
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "tiff"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "tiff"}
+	return encoder2.NewEncoder("tiff", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/wmav1/encoder.go

@@ -2,15 +2,13 @@ package wmav1
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "wmav1"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "wmav1"}
+	return encoder2.NewEncoder("wmav1", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/wmav2/encoder.go

@@ -2,15 +2,13 @@ package wmav2
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:a", "wmav2"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:a", "wmav2"}
+	return encoder2.NewEncoder("wmav2", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/wmv1/encoder.go

@@ -2,15 +2,13 @@ package wmv1
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "wmv1"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "wmv1"}
+	return encoder2.NewEncoder("wmv1", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/wmv2/encoder.go

@@ -2,15 +2,13 @@ package wmv2
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "wmv2"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "wmv2"}
+	return encoder2.NewEncoder("wmv2", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

encoder/xbm/encoder.go

@@ -2,15 +2,13 @@ package xbm
 
 import encoder2 "git.kor-elf.net/kor-elf/gui-for-ffmpeg/encoder"
 
-type encoder struct {
-}
-
 func NewEncoder() encoder2.EncoderContract {
-	return &encoder{}
-}
+	parameters := map[string]encoder2.ParameterContract{}
+	getParams := func(parameters map[string]encoder2.ParameterContract) []string {
+		return []string{"-c:v", "xbm"}
+	}
 
-func (e encoder) GetParams() []string {
-	return []string{"-c:v", "xbm"}
+	return encoder2.NewEncoder("xbm", parameters, getParams)
 }
 
 func NewData() encoder2.EncoderDataContract {

languages/active.en.toml

@@ -266,6 +266,10 @@ other = "**FFmpeg** is a trademark of **[Fabrice Bellard](http://bellard.org/)**
 hash = "sha1-96ac799e1086b31fd8f5f8d4c801829d6c853f08"
 other = "File:"
 
+[formPreset]
+hash = "sha1-7759891ba1ef9f7adc70defc7ac18fbf149c1a68"
+other = "Preset"
+
 [help]
 hash = "sha1-6a45cef900c668effcb2ab10da05855c1fd10f6f"
 other = "Help"
@@ -290,6 +294,10 @@ other = "License information"
 hash = "sha1-359fff328717c05104e51a2d29f05bf1875d26b7"
 other = "Licenses from other products used in the program"
 
+[parameterCheckbox]
+hash = "sha1-9e35221d454870996fd51d576249cf47d1784a3c"
+other = "Enable option"
+
 [pathToFfmpeg]
 hash = "sha1-fafc50f1db0f720fe83a96cd70a9e1ad824e96b6"
 other = "Path to FFmpeg:"
@@ -298,6 +306,46 @@ other = "Path to FFmpeg:"
 hash = "sha1-b872edc9633a2e81ef678dc46fe46a7e91732024"
 other = "Path to FFprobe:"
 
+[preset_fast]
+hash = "sha1-935e1ac9d3c8ba4478326c909ba66662acb0540e"
+other = "fast (slower than \"faster\", but the file will weigh less)"
+
+[preset_faster]
+hash = "sha1-98620b73c896440c39ea6ec4b9b19d41301c9a7e"
+other = "faster (slower than \"veryfast\", but the file will weigh less)"
+
+[preset_medium]
+hash = "sha1-f7d1c30135c22c2f07c247075c0df103bb3c3ea5"
+other = "medium (slower than \"fast\", but the file will weigh less)"
+
+[preset_placebo]
+hash = "sha1-7bcff099104bb192881139e6404981bd426b3f91"
+other = "placebo (not recommended)"
+
+[preset_slow]
+hash = "sha1-681bf587275a45b48af49bb2ad8f0947919530e7"
+other = "slow (slower than \"medium\", but the file will weigh less)"
+
+[preset_slower]
+hash = "sha1-d1c692ee2b7643ae2c71a48bea880327a3c6b1e3"
+other = "slower (slower than \"slow\", but the file will weigh less)"
+
+[preset_superfast]
+hash = "sha1-41c39959e8f1547cc9259a5b459c4ccbf368cc23"
+other = "superfast (slower than \"ultrafast\", but the file will weigh less)"
+
+[preset_ultrafast]
+hash = "sha1-dfed981573ac2046832f9a9450bc9388958753fa"
+other = "ultrafast (fast, but the file will weigh a lot)"
+
+[preset_veryfast]
+hash = "sha1-370b82509887d02d7a2ef9b110df4616b16123ce"
+other = "veryfast (slower than \"superfast\", but the file will weigh less)"
+
+[preset_veryslow]
+hash = "sha1-d428bfa6deea9dd5c7c1f80ceba24e123ae96d0d"
+other = "veryslow (slower than \"slower\", but the file will weigh less)"
+
 [programmLink]
 hash = "sha1-18f9a3fad6aacefe1b05eed23122800b391ff5ca"
 other = "Project website"
@@ -315,8 +363,8 @@ hash = "sha1-4864057d626a868fa60f999bed3191d61d045ddc"
 other = "Save"
 
 [selectEncoder]
-hash = "sha1-db41d1c87b2fbe561bbdcc03919d3a55360bb7d8"
-other = "Converter:"
+hash = "sha1-88f3670b09758a3336057520a215058d61006abd"
+other = "Encoder:"
 
 [selectFFPathTitle]
 hash = "sha1-95581446a28d968ff1a027c623159a7eb08654cf"

languages/active.kk.toml

@@ -266,6 +266,10 @@ other = "FFmpeg — **[FFmpeg](https://ffmpeg.org/about.html)** жобасын
 hash = "sha1-96ac799e1086b31fd8f5f8d4c801829d6c853f08"
 other = "Файл:"
 
+[formPreset]
+hash = "sha1-7759891ba1ef9f7adc70defc7ac18fbf149c1a68"
+other = "Алдын ала орнатылған"
+
 [help]
 hash = "sha1-6a45cef900c668effcb2ab10da05855c1fd10f6f"
 other = "Анықтама"
@@ -290,6 +294,10 @@ other = "Лицензия туралы ақпарат"
 hash = "sha1-359fff328717c05104e51a2d29f05bf1875d26b7"
 other = "Бағдарламада пайдаланылатын басқа өнімдердің лицензиялары"
 
+[parameterCheckbox]
+hash = "sha1-9e35221d454870996fd51d576249cf47d1784a3c"
+other = "Опцияны қосу"
+
 [pathToFfmpeg]
 hash = "sha1-fafc50f1db0f720fe83a96cd70a9e1ad824e96b6"
 other = "FFmpeg жол:"
@@ -298,6 +306,46 @@ other = "FFmpeg жол:"
 hash = "sha1-b872edc9633a2e81ef678dc46fe46a7e91732024"
 other = "FFprobe жол:"
 
+[preset_fast]
+hash = "sha1-935e1ac9d3c8ba4478326c909ba66662acb0540e"
+other = "fast («faster» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_faster]
+hash = "sha1-98620b73c896440c39ea6ec4b9b19d41301c9a7e"
+other = "faster («veryfast» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_medium]
+hash = "sha1-f7d1c30135c22c2f07c247075c0df103bb3c3ea5"
+other = "medium («fast» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_placebo]
+hash = "sha1-7bcff099104bb192881139e6404981bd426b3f91"
+other = "placebo (ұсынылмайды)"
+
+[preset_slow]
+hash = "sha1-681bf587275a45b48af49bb2ad8f0947919530e7"
+other = "slow («medium» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_slower]
+hash = "sha1-d1c692ee2b7643ae2c71a48bea880327a3c6b1e3"
+other = "slower («slow» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_superfast]
+hash = "sha1-41c39959e8f1547cc9259a5b459c4ccbf368cc23"
+other = "superfast («ultrafast» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_ultrafast]
+hash = "sha1-dfed981573ac2046832f9a9450bc9388958753fa"
+other = "ultrafast (жылдам, бірақ файлдың салмағы көп болады)"
+
+[preset_veryfast]
+hash = "sha1-370b82509887d02d7a2ef9b110df4616b16123ce"
+other = "veryfast («superfast» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
+[preset_veryslow]
+hash = "sha1-d428bfa6deea9dd5c7c1f80ceba24e123ae96d0d"
+other = "veryslow («slower» қарағанда баяуырақ, бірақ файлдың салмағы аз болады)"
+
 [programmLink]
 hash = "sha1-18f9a3fad6aacefe1b05eed23122800b391ff5ca"
 other = "Жобаның веб-сайты"
@@ -315,8 +363,8 @@ hash = "sha1-4864057d626a868fa60f999bed3191d61d045ddc"
 other = "Сақтау"
 
 [selectEncoder]
-hash = "sha1-db41d1c87b2fbe561bbdcc03919d3a55360bb7d8"
-other = "Түрлендіргіш:"
+hash = "sha1-88f3670b09758a3336057520a215058d61006abd"
+other = "Кодировщик:"
 
 [selectFFPathTitle]
 hash = "sha1-95581446a28d968ff1a027c623159a7eb08654cf"

languages/active.ru.toml

@@ -65,19 +65,31 @@ exit = "Выход"
 ffmpegLGPL = "Это программное обеспечение использует библиотеки из проекта **FFmpeg** под **[LGPLv2.1](http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html)**."
 ffmpegTrademark = "**FFmpeg** — торговая марка **[Fabrice Bellard](http://bellard.org/)** , создателя проекта **[FFmpeg](https://ffmpeg.org/about.html)**."
 fileForConversionTitle = "Файл:"
+formPreset = "Предустановка"
 help = "Справка"
 inProgressQueue = "Выполняется"
 languageSelectionFormHead = "Переключить язык"
 languageSelectionHead = "Выберите язык"
 licenseLink = "Сведения о лицензии"
 licenseLinkOther = "Лицензии от других продуктов, которые используются в программе"
+parameterCheckbox = "Включить параметр"
 pathToFfmpeg = "Путь к FFmpeg:"
 pathToFfprobe = "Путь к FFprobe:"
+preset_fast = "fast (медленней чем faster, но будет файл и меньше весить)"
+preset_faster = "faster (медленней чем veryfast, но будет файл и меньше весить)"
+preset_medium = "medium (медленней чем fast, но будет файл и меньше весить)"
+preset_placebo = "placebo (не рекомендуется)"
+preset_slow = "slow (медленней чем medium, но будет файл и меньше весить)"
+preset_slower = "slower (медленней чем slow, но будет файл и меньше весить)"
+preset_superfast = "superfast (медленней чем ultrafast, но будет файл и меньше весить)"
+preset_ultrafast = "ultrafast (быстро, но файл будет много весить)"
+preset_veryfast = "veryfast (медленней чем superfast, но будет файл и меньше весить)"
+preset_veryslow = "veryslow (медленней чем slower, но будет файл и меньше весить)"
 programmLink = "Сайт проекта"
 programmVersion = "**Версия программы:** {{.Version}}"
 queue = "Очередь"
 save = "Сохранить"
-selectEncoder = "Конвертер:"
+selectEncoder = "Кодировщик:"
 selectFFPathTitle = "Укажите путь к FFmpeg и к FFprobe"
 selectFormat = "Расширение файла:"
 settings = "Настройки"

main.go

@@ -26,7 +26,7 @@ func init() {
 	appMetadata := &fyne.AppMetadata{
 		ID:      "net.kor-elf.projects.gui-for-ffmpeg",
 		Name:    "GUI for FFmpeg",
-		Version: "0.5.0",
+		Version: "0.6.0",
 		Icon:    iconResource,
 	}