code cleanup

util/av/audio_from_video.go

@@ -0,0 +1,23 @@
+package av
+
+import (
+	ffmpeg "github.com/u2takey/ffmpeg-go"
+)
+
+func AudioFromVideo(videoPath string, audioPath string) error {
+	err := ffmpeg.
+		Input(videoPath).
+		Output(audioPath, ffmpeg.KwArgs{
+			"map": "a",
+			"vn":  nil,
+			"f":   "mp3",
+			"ab":  "128k",
+		}).
+		Silent(true).
+		OverWriteOutput().
+		Run()
+	if err != nil {
+		return err
+	}
+	return nil
+}