/**
  * Initialize class variables
  */
 public function __construct()
 {
     $this->api_key = rtmedia_transcoding_get_api_key();
     $this->stored_api_key = rtmedia_transcoding_get_option('rtmedia-encoding-api-key-stored');
     if ($this->api_key) {
         // store api key as different db key if user disable encoding service
         if (!$this->stored_api_key) {
             $this->stored_api_key = $this->api_key;
             rtmedia_transcoding_update_option('rtmedia-encoding-api-key-stored', $this->stored_api_key);
         }
     }
 }
/**
 * Get API key for transcoding service
 *
 * @since   1.0
 * @param   mixed   $default
 *
 * @return  mixed
 */
function rtmedia_transcoding_update_api_key($key = '')
{
    return rtmedia_transcoding_update_option(rtmedia_transcoding_get_api_key_id(), $key);
}