fix: incorrect param

src/mp4.py

@@ -156,7 +156,7 @@ def encapsulate(song_info: SongInfo, decrypted_media: bytes, atmos_convent: bool
                 f.write(str(nhml_xml))
             subprocess.run(f"gpac -i {nhml_name.absolute()} nhmlr -o {song_name.absolute()}",
                            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-    subprocess.run(f'mp4box -add {song_name.absolute()} -ipod {song_name.absolute()}',
+    subprocess.run(f'mp4box -ipod {song_name.absolute()}',
                    stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
     with open(song_name.absolute(), "rb") as f:
         final_song = f.read()