src/convertor/view.go

@@ -22,6 +22,7 @@ type ViewContract interface {
 		ffprobePath string,
 		save func(ffmpegPath string, ffprobePath string) error,
 		cancel func(),
+		donwloadFFmpeg func(progressBar *widget.ProgressBar, progressMessage *canvas.Text) error,
 	)
 }
 

src/convertor/view_setting.go

@@ -17,6 +17,7 @@ func (v View) SelectFFPath(
 	currentPathFfprobe string,
 	save func(ffmpegPath string, ffprobePath string) error,
 	cancel func(),
+	donwloadFFmpeg func(progressBar *widget.ProgressBar, progressMessage *canvas.Text) error,
 ) {
 	errorMessage := canvas.NewText("", color.RGBA{R: 255, G: 0, B: 0, A: 255})
 	errorMessage.TextSize = 16
@@ -80,7 +81,11 @@ func (v View) SelectFFPath(
 	selectFFPathTitle := v.localizerService.GetMessage(&i18n.LocalizeConfig{
 		MessageID: "selectFFPathTitle",
 	})
-	v.w.SetContent(widget.NewCard(selectFFPathTitle, "", container.NewVBox(form)))
+
+	v.w.SetContent(widget.NewCard(selectFFPathTitle, "", container.NewVBox(
+		form,
+		v.blockDownloadFFmpeg(donwloadFFmpeg),
+	)))
 }
 
 func (v View) getButtonSelectFile(path string) (filePath *string, button *widget.Button, buttonMessage *canvas.Text) {

src/convertor/view_setting_button_download_ffmpeg_anyos.go

@@ -0,0 +1,17 @@
+//go:build !windows
+// +build !windows
+
+package convertor
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+)
+
+func (v View) blockDownloadFFmpeg(
+	donwloadFFmpeg func(progressBar *widget.ProgressBar, progressMessage *canvas.Text) error,
+) *fyne.Container {
+	return container.NewVBox()
+}

src/convertor/view_setting_button_download_ffmpeg_windows.go

@@ -0,0 +1,63 @@
+//go:build windows
+// +build windows
+
+package convertor
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+	"github.com/nicksnyder/go-i18n/v2/i18n"
+	"golang.org/x/image/colornames"
+	"image/color"
+)
+
+func (v View) blockDownloadFFmpeg(
+	donwloadFFmpeg func(progressBar *widget.ProgressBar, progressMessage *canvas.Text) error,
+) *fyne.Container {
+
+	errorDownloadFFmpegMessage := canvas.NewText("", color.RGBA{R: 255, G: 0, B: 0, A: 255})
+	errorDownloadFFmpegMessage.TextSize = 16
+	errorDownloadFFmpegMessage.TextStyle = fyne.TextStyle{Bold: true}
+
+	progressDownloadFFmpegMessage := canvas.NewText("", color.RGBA{R: 49, G: 127, B: 114, A: 255})
+	progressDownloadFFmpegMessage.TextSize = 16
+	progressDownloadFFmpegMessage.TextStyle = fyne.TextStyle{Bold: true}
+
+	progressBar := widget.NewProgressBar()
+
+	var buttonDownloadFFmpeg *widget.Button
+
+	buttonDownloadFFmpeg = widget.NewButton(v.localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "download",
+	}), func() {
+		buttonDownloadFFmpeg.Disable()
+
+		err := donwloadFFmpeg(progressBar, progressDownloadFFmpegMessage)
+		if err != nil {
+			errorDownloadFFmpegMessage.Text = err.Error()
+		}
+
+		buttonDownloadFFmpeg.Enable()
+	})
+
+	downloadFFmpegFromSiteMessage := v.localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "downloadFFmpegFromSite",
+	})
+
+	return container.NewVBox(
+		canvas.NewLine(colornames.Darkgreen),
+		widget.NewCard(v.localizerService.GetMessage(&i18n.LocalizeConfig{
+			MessageID: "buttonDownloadFFmpeg",
+		}), "", container.NewVBox(
+			widget.NewRichTextFromMarkdown(
+				downloadFFmpegFromSiteMessage+" [https://github.com/BtbN/FFmpeg-Builds/releases](https://github.com/BtbN/FFmpeg-Builds/releases)",
+			),
+			buttonDownloadFFmpeg,
+			errorDownloadFFmpegMessage,
+			progressDownloadFFmpegMessage,
+			progressBar,
+		)),
+	)
+}

src/handler/convertor.go

@@ -47,13 +47,13 @@ func (h ConvertorHandler) MainConvertor() {
 		h.convertorView.Main(h.runConvert)
 		return
 	}
-	h.convertorView.SelectFFPath("", "", h.saveSettingFFPath, nil)
+	h.convertorView.SelectFFPath("", "", h.saveSettingFFPath, nil, h.downloadFFmpeg)
 }
 
 func (h ConvertorHandler) FfPathSelection() {
 	ffmpeg, _ := h.convertorRepository.GetPathFfmpeg()
 	ffprobe, _ := h.convertorRepository.GetPathFfprobe()
-	h.convertorView.SelectFFPath(ffmpeg, ffprobe, h.saveSettingFFPath, h.MainConvertor)
+	h.convertorView.SelectFFPath(ffmpeg, ffprobe, h.saveSettingFFPath, h.MainConvertor, h.downloadFFmpeg)
 }
 
 func (h ConvertorHandler) GetFfmpegVersion() (string, error) {

src/handler/convertor_anyos.go

@@ -3,8 +3,16 @@
 
 package handler
 
-import "git.kor-elf.net/kor-elf/gui-for-ffmpeg/convertor"
+import (
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/widget"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/convertor"
+)
 
 func getPathsToFF() []convertor.FFPathUtilities {
 	return []convertor.FFPathUtilities{{"ffmpeg/bin/ffmpeg", "ffmpeg/bin/ffprobe"}, {"ffmpeg", "ffprobe"}}
 }
+
+func (h ConvertorHandler) downloadFFmpeg(progressBar *widget.ProgressBar, progressMessage *canvas.Text) (err error) {
+	return nil
+}

src/handler/convertor_windows.go

@@ -3,8 +3,151 @@
 
 package handler
 
-import "git.kor-elf.net/kor-elf/gui-for-ffmpeg/convertor"
+import (
+	"archive/zip"
+	"errors"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/widget"
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/convertor"
+	"github.com/nicksnyder/go-i18n/v2/i18n"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
 
 func getPathsToFF() []convertor.FFPathUtilities {
 	return []convertor.FFPathUtilities{{"ffmpeg\\bin\\ffmpeg.exe", "ffmpeg\\bin\\ffprobe.exe"}}
 }
+
+func (h ConvertorHandler) downloadFFmpeg(progressBar *widget.ProgressBar, progressMessage *canvas.Text) (err error) {
+	isDirectoryFFmpeg := isDirectory("ffmpeg")
+	if isDirectoryFFmpeg == false {
+		err = os.Mkdir("ffmpeg", 0777)
+		if err != nil {
+			return err
+		}
+	}
+	progressMessage.Text = h.localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "downloadRun",
+	})
+	progressMessage.Refresh()
+	err = downloadFile("ffmpeg/ffmpeg.zip", "https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-win64-gpl.zip", progressBar)
+	if err != nil {
+		return err
+	}
+
+	progressMessage.Text = h.localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "unzipRun",
+	})
+	progressMessage.Refresh()
+	err = unZip("ffmpeg/ffmpeg.zip", "ffmpeg")
+	if err != nil {
+		return err
+	}
+	_ = os.Remove("ffmpeg/ffmpeg.zip")
+
+	progressMessage.Text = h.localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "testFF",
+	})
+	progressMessage.Refresh()
+	err = h.saveSettingFFPath("ffmpeg/ffmpeg-master-latest-win64-gpl/bin/ffmpeg.exe", "ffmpeg/ffmpeg-master-latest-win64-gpl/bin/ffprobe.exe")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func downloadFile(filepath string, url string, progressBar *widget.ProgressBar) (err error) {
+	progressBar.Value = 0
+	progressBar.Max = 100
+
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return err
+	}
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	f, err := os.OpenFile(filepath, os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	buf := make([]byte, 32*1024)
+	var downloaded int64
+	for {
+		n, err := resp.Body.Read(buf)
+		if err != nil {
+			if err == io.EOF {
+				break
+			}
+			return err
+		}
+		if n > 0 {
+			f.Write(buf[:n])
+			downloaded += int64(n)
+			progressBar.Value = float64(downloaded) / float64(resp.ContentLength) * 100
+			progressBar.Refresh()
+		}
+	}
+	return nil
+}
+
+func unZip(fileZip string, directory string) error {
+	archive, err := zip.OpenReader(fileZip)
+	if err != nil {
+		return err
+	}
+	defer archive.Close()
+
+	for _, f := range archive.File {
+		filePath := filepath.Join(directory, f.Name)
+
+		if !strings.HasPrefix(filePath, filepath.Clean(directory)+string(os.PathSeparator)) {
+			return errors.New("invalid file path")
+		}
+		if f.FileInfo().IsDir() {
+			os.MkdirAll(filePath, os.ModePerm)
+			continue
+		}
+
+		if err := os.MkdirAll(filepath.Dir(filePath), os.ModePerm); err != nil {
+			return err
+		}
+
+		dstFile, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
+		if err != nil {
+			return err
+		}
+
+		fileInArchive, err := f.Open()
+		if err != nil {
+			return err
+		}
+
+		if _, err := io.Copy(dstFile, fileInArchive); err != nil {
+			return err
+		}
+
+		dstFile.Close()
+		fileInArchive.Close()
+	}
+
+	return nil
+}
+
+func isDirectory(path string) bool {
+	fileInfo, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+
+	return fileInfo.IsDir()
+}

src/languages/active.en.toml

@@ -10,6 +10,10 @@ other = "About"
 hash = "sha1-8bd565814118ba8b90c40eb5b62acf8d2676e7d6"
 other = "A simple interface for the FFmpeg console utility. \nBut I am not the author of the FFmpeg utility itself."
 
+[buttonDownloadFFmpeg]
+hash = "sha1-c223c2e15171156192bc3146aee91e6094bb475b"
+other = "Download FFmpeg automatically"
+
 [buttonForSelectedDirTitle]
 hash = "sha1-52b13f1b13e82d22e8c4102332db5d4ec551247b"
 other = "Folder where it will be saved:"
@@ -42,6 +46,18 @@ other = "Convert"
 hash = "sha1-4d972809e4c7f9c9ff2c110a126bbc183c9429ce"
 other = "Converter video files to mp4"
 
+[download]
+hash = "sha1-fe8f79f29da457de2f6bc9531de6e536e0c426ad"
+other = "Download"
+
+[downloadFFmpegFromSite]
+hash = "sha1-0889c95aa3a8659d8d903b4dab7097699c4d8aa4"
+other = "Will be downloaded from the site:"
+
+[downloadRun]
+hash = "sha1-55f87f114628fa2d5d8e67d1e1cda22c0e4f9271"
+other = "Downloading..."
+
 [error]
 hash = "sha1-a7df8f8b5d754f226ac4cb320577fe692b33e483"
 other = "An error has occurred!"
@@ -138,6 +154,14 @@ other = "Specify the path to FFmpeg and FFprobe"
 hash = "sha1-7f17c7c62a7fd8d1a508481f4778688927734c2f"
 other = "Settings"
 
+[testFF]
+hash = "sha1-f5b8ed88e9609963035d2235be0a79bbec619976"
+other = "Checking FFmpeg for serviceability..."
+
 [titleDownloadLink]
 hash = "sha1-92df86371f6c3a06ca1e4754f113142776a32d49"
 other = "You can download it from here"
+
+[unzipRun]
+hash = "sha1-c554dad13026668a1f6adf3171837c5d51bbac36"
+other = "Unpacked..."

src/languages/active.kk.toml

@@ -10,6 +10,10 @@ other = "Бағдарлама туралы"
 hash = "sha1-8bd565814118ba8b90c40eb5b62acf8d2676e7d6"
 other = "FFmpeg консоль утилитасы үшін қарапайым интерфейс. \nБірақ мен FFmpeg утилитасының авторы емеспін."
 
+[buttonDownloadFFmpeg]
+hash = "sha1-c223c2e15171156192bc3146aee91e6094bb475b"
+other = "FFmpeg автоматты түрде жүктеп алыңыз"
+
 [buttonForSelectedDirTitle]
 hash = "sha1-52b13f1b13e82d22e8c4102332db5d4ec551247b"
 other = "Файлды сақтауға арналған каталог:"
@@ -42,6 +46,18 @@ other = "Файлды түрлендіру"
 hash = "sha1-4d972809e4c7f9c9ff2c110a126bbc183c9429ce"
 other = "Бейне файлдарын mp4 форматына түрлендіру"
 
+[download]
+hash = "sha1-fe8f79f29da457de2f6bc9531de6e536e0c426ad"
+other = "Жүктеп алу"
+
+[downloadFFmpegFromSite]
+hash = "sha1-0889c95aa3a8659d8d903b4dab7097699c4d8aa4"
+other = "Сайттан жүктеледі:"
+
+[downloadRun]
+hash = "sha1-55f87f114628fa2d5d8e67d1e1cda22c0e4f9271"
+other = "Жүктеп алынуда..."
+
 [error]
 hash = "sha1-a7df8f8b5d754f226ac4cb320577fe692b33e483"
 other = "Қате орын алды!"
@@ -138,6 +154,14 @@ other = "FFmpeg және FFprobe жолын көрсетіңіз"
 hash = "sha1-7f17c7c62a7fd8d1a508481f4778688927734c2f"
 other = "Параметрлер"
 
+[testFF]
+hash = "sha1-f5b8ed88e9609963035d2235be0a79bbec619976"
+other = "FFmpeg функционалдығы тексерілуде..."
+
 [titleDownloadLink]
 hash = "sha1-92df86371f6c3a06ca1e4754f113142776a32d49"
 other = "Сіз оны осы жерден жүктей аласыз"
+
+[unzipRun]
+hash = "sha1-c554dad13026668a1f6adf3171837c5d51bbac36"
+other = "Орамнан шығарылуда..."

src/languages/active.ru.toml

@@ -1,6 +1,7 @@
 AlsoUsedProgram = "Также в программе используется:"
 about = "О программе"
 aboutText = "Простенький интерфейс для консольной утилиты FFmpeg. \nНо я не являюсь автором самой утилиты FFmpeg."
+buttonDownloadFFmpeg = "Скачать автоматически FFmpeg"
 buttonForSelectedDirTitle = "Папка куда будет сохраняться:"
 cancel = "Отмена"
 changeFFPath = "FFmpeg и FFprobe"
@@ -9,6 +10,9 @@ checkboxOverwriteOutputFilesTitle = "Разрешить перезаписать
 choose = "выбрать"
 converterVideoFilesSubmitTitle = "Конвертировать"
 converterVideoFilesTitle = "Конвертор видео файлов в mp4"
+download = "Скачать"
+downloadFFmpegFromSite = "Будет скачано с сайта:"
+downloadRun = "Скачивается..."
 error = "Произошла ошибка!"
 errorConverter = "не смогли отконвертировать видео"
 errorDatabase = "не смогли создать файл 'database' в папке 'data'"
@@ -33,4 +37,6 @@ programmVersion = "**Версия программы:** {{.Version}}"
 save = "Сохранить"
 selectFFPathTitle = "Укажите путь к FFmpeg и к FFprobe"
 settings = "Настройки"
+testFF = "Проверка FFmpeg на работоспособность..."
 titleDownloadLink = "Скачать можно от сюда"
+unzipRun = "Распаковывается..."

src/languages/translate.en.toml

@@ -1,7 +1,3 @@
-[AlsoUsedProgram]
-hash = "sha1-a72be72e7808bb8a0144ed7a93acb29c568b1ed4"
-other = "The program also uses:"
-
-[licenseLinkOther]
-hash = "sha1-359fff328717c05104e51a2d29f05bf1875d26b7"
-other = "Licenses from other products used in the program"
+[testFF]
+hash = "sha1-f5b8ed88e9609963035d2235be0a79bbec619976"
+other = "Checking FFmpeg for serviceability..."

src/languages/translate.kk.toml

@@ -1,7 +1,3 @@
-[AlsoUsedProgram]
-hash = "sha1-a72be72e7808bb8a0144ed7a93acb29c568b1ed4"
-other = "Бағдарлама сонымен қатар пайдаланады:"
-
-[licenseLinkOther]
-hash = "sha1-359fff328717c05104e51a2d29f05bf1875d26b7"
-other = "Бағдарламада пайдаланылатын басқа өнімдердің лицензиялары"
+[testFF]
+hash = "sha1-f5b8ed88e9609963035d2235be0a79bbec619976"
+other = "FFmpeg функционалдығы тексерілуде..."