FileDecodeFilter::filter

public function filter(array $values)
{
	if (Application::getInstance()->isUtfMode())
	{
		return null;
	}

	if (empty($values['files']) || !is_array($values['files']))
	{
		return null;
	}

	return [
		'files' => Encoding::convertEncoding($values['files'], 'UTF-8', SITE_CHARSET),
	];
}