Working prototype.

A simple working graphical interface with which you can transcode any video to mp4.

src/handler/convertor.go

@@ -0,0 +1,112 @@
+package handler
+
+import (
+	"ffmpegGui/convertor"
+	myError "ffmpegGui/error"
+	"fmt"
+	"fyne.io/fyne/v2/widget"
+	"log"
+	"math/rand"
+	"net"
+	"os"
+	"path"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type ConvertorHandler struct {
+	convertorService convertor.ServiceContract
+	convertorView    convertor.ViewContract
+	errorView        myError.ViewContract
+}
+
+func NewConvertorHandler(
+	convertorService convertor.ServiceContract,
+	convertorView convertor.ViewContract,
+	errorView myError.ViewContract,
+) *ConvertorHandler {
+	return &ConvertorHandler{
+		convertorService,
+		convertorView,
+		errorView,
+	}
+}
+
+func (h ConvertorHandler) GetConvertor() {
+	h.convertorView.Main(h.runConvert, h.getSockPath)
+}
+
+func (h ConvertorHandler) getSockPath(file convertor.File, progressbar *widget.ProgressBar) (string, error) {
+	totalDuration, err := h.getTotalDuration(file)
+
+	if err != nil {
+		return "", err
+	}
+	progressbar.Value = 0
+	progressbar.Max = totalDuration
+	progressbar.Show()
+	progressbar.Refresh()
+
+	rand.Seed(time.Now().Unix())
+	sockFileName := path.Join(os.TempDir(), fmt.Sprintf("%d_sock", rand.Int()))
+	l, err := net.Listen("unix", sockFileName)
+	if err != nil {
+		return "", err
+	}
+
+	go func() {
+		re := regexp.MustCompile(`frame=(\d+)`)
+		fd, err := l.Accept()
+		if err != nil {
+			log.Fatal("accept error:", err)
+		}
+		buf := make([]byte, 16)
+		data := ""
+		progress := 0.0
+		progressMessage := ""
+		for {
+			_, err := fd.Read(buf)
+			if err != nil {
+				return
+			}
+			data += string(buf)
+			a := re.FindAllStringSubmatch(data, -1)
+			cp := ""
+			if len(a) > 0 && len(a[len(a)-1]) > 0 {
+				c, _ := strconv.Atoi(a[len(a)-1][len(a[len(a)-1])-1])
+				progress = float64(c)
+				cp = fmt.Sprintf("%.2f", float64(c)/totalDuration*100)
+			}
+			if strings.Contains(data, "progress=end") {
+				cp = "done"
+				progress = totalDuration
+			}
+			if cp == "" {
+				cp = ".0"
+			}
+			if cp != progressMessage {
+				progressbar.Value = progress
+				progressbar.Refresh()
+				progressMessage = cp
+				fmt.Println("progress: ", progressMessage)
+			}
+		}
+	}()
+
+	return sockFileName, nil
+}
+
+func (h ConvertorHandler) runConvert(setting convertor.HandleConvertSetting) error {
+	return h.convertorService.RunConvert(
+		convertor.ConvertSetting{
+			VideoFileInput: setting.VideoFileInput,
+			SocketPath:     setting.SocketPath,
+		},
+	)
+}
+
+func (h ConvertorHandler) getTotalDuration(file convertor.File) (float64, error) {
+	return h.convertorService.GetTotalDuration(file)
+}