/**
  * returns whether the delivery profile supports the passed deliveryAttributes in this case seekFrom
  * @param DeliveryProfileDynamicAttributes $deliveryAttributes
  */
 public function supportsDeliveryDynamicAttributes(DeliveryProfileDynamicAttributes $deliveryAttributes)
 {
     $result = parent::supportsDeliveryDynamicAttributes($deliveryAttributes);
     if ($result == self::DYNAMIC_ATTRIBUTES_NO_SUPPORT) {
         return $result;
     }
     // the profile supports seek if it has the {seekFromSec} placeholder in its pattern
     if ($deliveryAttributes->getSeekFromTime() > 0 && strpos($this->getPattern(), "{seekFromSec}") === false) {
         return self::DYNAMIC_ATTRIBUTES_PARTIAL_SUPPORT;
     }
     return $result;
 }