<?php
if (!function_exists('get_translated_media_or_original')) {
  function get_translated_media_or_original($media_file_id) {
    global $wpdb;
    // check language of media file
    $custom_query = "SELECT * FROM ".$wpdb->postmeta." WHERE meta_key='wpml_media_lang' AND post_id=".$wpdb->escape($media_file_id);
    $meta = $wpdb->get_results( $custom_query );
    $media_file_language = $meta[0]->meta_value;
    // if language of media file equals current language, return that id
    if($media_file_language == ICL_LANGUAGE_CODE) {
      return $media_file_id;
    }
    // else look for original of this duplicate
    else {
      $custom_query = "SELECT * FROM ".$wpdb->postmeta." WHERE meta_key='wpml_media_duplicate_of' AND meta_value=".$wpdb->escape($media_file_id);
      $meta = $wpdb->get_results( $custom_query );
      // return $meta;
      if (is_array($meta) && !empty($meta) && isset($meta[0])) {
        $meta = $meta[0];
      }
      if (is_object($meta)) {
        return $meta->post_id;
      }
      else {
        return false;
      }
    }
  }
}