Pimcore\Model\Object\ClassDefinition\Data\Video::getDataForResource PHP Method

    public function getDataForResource($data, $object = null, $params = [])
    {
        if ($data) {
            $data = clone $data;
            if ($data->getData() instanceof Asset) {
                $data->setData($data->getData()->getId());
            }
            if ($data->getPoster() instanceof Asset) {
                $data->setPoster($data->getPoster()->getId());
            }
            $data = object2array($data);
            return serialize($data);
        }
        return null;
    }