/**
  * @return string
  */
 public function process()
 {
     if (isset($_POST['SourceURL'])) {
         $sourceURL = $_POST['SourceURL'];
         $bIsCloudinary = CloudinaryVideo::isCloudinary($sourceURL);
         $bIsYoutube = YoutubeVideo::is_youtube($sourceURL);
         $bIsVimeo = VimeoVideo::is_vimeo($sourceURL);
         $video = null;
         if ($bIsYoutube || $bIsVimeo || $bIsCloudinary) {
             if ($bIsCloudinary) {
                 $filterClass = 'CloudinaryVideo';
                 $fileType = 'video';
             } elseif ($bIsYoutube) {
                 $filterClass = 'YoutubeVideo';
                 $fileType = 'youtube';
             } else {
                 $filterClass = 'VimeoVideo';
                 $fileType = 'vimeo';
             }
             $funcForID = $bIsYoutube ? 'youtube_id_from_url' : 'vimeo_id_from_url';
             $funcForDetails = $bIsYoutube ? 'youtube_video_details' : 'vimeo_video_details';
             if ($bIsCloudinary) {
                 $arr = Config::inst()->get('CloudinaryConfigs', 'settings');
                 if (isset($arr['CloudName']) && !empty($arr['CloudName'])) {
                     $arrPieces = explode('/', $sourceURL);
                     $arrFileName = array_slice($arrPieces, 7);
                     $fileName = implode('/', $arrFileName);
                     $publicID = substr($fileName, 0, strrpos($fileName, '.'));
                     $video = $filterClass::get()->filterAny(array('URL' => $sourceURL, 'PublicID' => $publicID))->first();
                     if (!$video) {
                         $api = new \Cloudinary\Api();
                         $resource = $api->resource($publicID, array("resource_type" => "video"));
                         //qoogjqs9ksyez7ch8sh5
                         $json = json_encode($resource);
                         $arrResource = Convert::json2array($json);
                         $video = new $filterClass(array('Title' => $arrResource['public_id'] . '.' . $arrResource['format'], 'PublicID' => $arrResource['public_id'], 'Version' => $arrResource['version'], 'URL' => $arrResource['url'], 'SecureURL' => $arrResource['secure_url'], 'FileType' => $arrResource['resource_type'], 'FileSize' => $arrResource['bytes'], 'Format' => $arrResource['format'], 'Signature' => isset($arrResource['signature']) ? $arrResource['signature'] : ''));
                         $video->write();
                     }
                 }
             } else {
                 $video = $filterClass::get()->filter('URL', $sourceURL)->first();
                 if (!$video) {
                     $sourceID = $filterClass::$funcForID($sourceURL);
                     $details = $filterClass::$funcForDetails($sourceID);
                     $video = new $filterClass(array('Title' => $details['title'], 'Duration' => $details['duration'], 'URL' => $sourceURL, 'secure_url' => $sourceURL, 'PublicID' => $sourceID, 'FileType' => $fileType));
                     $video->write();
                 }
             }
             if ($video) {
                 $this->value = $iVideoID = $video->ID;
                 $file = $this->customiseCloudinaryFile($video);
                 return Convert::array2json(array('colorselect_url' => $file->UploadFieldImageURL, 'thumbnail_url' => $file->UploadFieldThumbnailURL, 'fieldname' => $this->getName(), 'id' => $file->ID, 'url' => $file->URL, 'buttons' => $file->UploadFieldFileButtons, 'more_files' => $this->canUploadMany(), 'field_id' => $this->ID()));
             }
         }
     }
     return Convert::array2json(array());
 }