/**
  * Extract disabled content features from input post.
  *
  * @since 1.2.0
  * @param H5PCore $core
  * @param int $current
  * @return int
  */
 private function get_disabled_content_features($core, &$content)
 {
     $set = array('frame' => filter_input(INPUT_POST, 'frame', FILTER_VALIDATE_BOOLEAN), 'download' => filter_input(INPUT_POST, 'download', FILTER_VALIDATE_BOOLEAN), 'embed' => filter_input(INPUT_POST, 'embed', FILTER_VALIDATE_BOOLEAN), 'copyright' => filter_input(INPUT_POST, 'copyright', FILTER_VALIDATE_BOOLEAN));
     $content['disable'] = $core->getDisable($set, $content['disable']);
 }