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/ffplay.go

@@ -0,0 +1,30 @@
+package kernel
+
+import (
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/helper"
+	"os/exec"
+)
+
+type FFplay struct {
+	ffPathUtilities *FFPathUtilities
+}
+
+type FFplaySetting struct {
+	PathToFile string
+}
+
+type FFplayContract interface {
+	Run(setting FFplaySetting) error
+}
+
+func NewFFplay(ffPathUtilities *FFPathUtilities) *FFplay {
+	return &FFplay{ffPathUtilities: ffPathUtilities}
+}
+
+func (ffplay FFplay) Run(setting FFplaySetting) error {
+	args := []string{setting.PathToFile}
+	cmd := exec.Command(ffplay.ffPathUtilities.FFplay, args...)
+	helper.PrepareBackgroundCommand(cmd)
+
+	return cmd.Start()
+}