change ffmpeg module

internal/logic/ffmpeg.go

@@ -0,0 +1,23 @@
+package logic
+
+import (
+  "fmt"
+  "os/exec"
+  "runtime"
+  ffstatic_windows_amd64 "github.com/go-ffstatic/windows-amd64"
+)
+
+func findFFmpeg() (string, error) {
+
+    path, err := exec.LookPath("ffmpeg")
+    if err == nil {
+        return path, nil
+    }
+
+    // Add platform-specific fallback paths
+    if runtime.GOOS == "windows" {
+      return ffstatic_darwin_amd64.FFmpegPath(), nil
+    }
+
+    return "", fmt.Errorf("FFmpeg not found")
+}

internal/logic/sync-stereo.go

@@ -23,9 +23,11 @@ func combineStereoFiles(folder1 string, folder2 string, outputFolder string, pro
         return fmt.Errorf("the number of audio files in the two folders must be the same")
     }
 
+    ffmpegPath, err := findFFmpeg()
+
     for index, file := range files1 {
       // Construct FFmpeg command
-      cmd := exec.Command("ffmpeg",
+      cmd := exec.Command(ffmpegPath,
           "-i", file,
           "-i", files2[index],
           "-filter_complex", "[0:a][1:a]amerge=inputs=2,pan=stereo|c0<c0+c2|c1<c1+c3[a]",
@@ -39,8 +41,6 @@ func combineStereoFiles(folder1 string, folder2 string, outputFolder string, pro
       }
     }
 
-
-
     progress.SetValue(1.0)
     return nil
 }