Add FFplay support to the application

Integrated FFplay functionality across the application. This includes support for setting up the FFplay path and invoking FFplay for media playback.

kernel/convertor.go

@@ -32,8 +32,10 @@ type ConvertorContract interface {
 	GetTotalDuration(file *File) (float64, error)
 	GetFFmpegVesrion() (string, error)
 	GetFFprobeVersion() (string, error)
+	GetFFplayVersion() (string, error)
 	ChangeFFmpegPath(path string) (bool, error)
 	ChangeFFprobePath(path string) (bool, error)
+	ChangeFFplayPath(path string) (bool, error)
 	GetRunningProcesses() map[int]*exec.Cmd
 	GetSupportFormats() (encoder.ConvertorFormatsContract, error)
 }
@@ -46,6 +48,7 @@ type ProgressContract interface {
 type FFPathUtilities struct {
 	FFmpeg  string
 	FFprobe string
+	FFplay  string
 }
 
 type runningProcesses struct {
@@ -177,6 +180,17 @@ func (s Convertor) GetFFprobeVersion() (string, error) {
 	return text[0], nil
 }
 
+func (s Convertor) GetFFplayVersion() (string, error) {
+	cmd := exec.Command(s.ffPathUtilities.FFplay, "-version")
+	helper.PrepareBackgroundCommand(cmd)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", err
+	}
+	text := regexp.MustCompile("\r?\n").Split(strings.TrimSpace(string(out)), -1)
+	return text[0], nil
+}
+
 func (s Convertor) ChangeFFmpegPath(path string) (bool, error) {
 	cmd := exec.Command(path, "-version")
 	helper.PrepareBackgroundCommand(cmd)
@@ -205,6 +219,20 @@ func (s Convertor) ChangeFFprobePath(path string) (bool, error) {
 	return true, nil
 }
 
+func (s Convertor) ChangeFFplayPath(path string) (bool, error) {
+	cmd := exec.Command(path, "-version")
+	helper.PrepareBackgroundCommand(cmd)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return false, err
+	}
+	if strings.Contains(strings.TrimSpace(string(out)), "ffplay") == false {
+		return false, nil
+	}
+	s.ffPathUtilities.FFplay = path
+	return true, nil
+}
+
 func (s Convertor) GetSupportFormats() (encoder.ConvertorFormatsContract, error) {
 	formats := encoder.NewConvertorFormats()
 	cmd := exec.Command(s.ffPathUtilities.FFmpeg, "-encoders")