wp-includes/ID3/getid3.lib.php:1130UTF-16LE => UTF-8
$stringstringstring public static function iconv_fallback_utf16le_utf8($string) { if (substr($string, 0, 2) == "\xFF\xFE") { // strip BOM $string = substr($string, 2); } $newcharstring = ''; for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::LittleEndian2Int(substr($string, $i, 2)); $newcharstring .= self::iconv_fallback_int_utf8($charval); } return $newcharstring; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ID3/getid3.lib.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.