if conf.playlist_asis:
                url = row["url"]
            # e.g. from .m3u to .pls
            else:
                url = convert_playlist(row["url"], listfmt(source), listfmt(dest), local_file=True, row=row)
            # insert quoted URL/filepath
            return re.sub(rx, quote(url), cmd.replace("%%", "%"), 2, re.X)
                

    if not add_default:
        return cmd
    else:
        return "/bin/false"