Pimcore\Model\Asset\Video::getImageThumbnail PHP Метод

    public function getImageThumbnail($thumbnailName, $timeOffset = null, $imageAsset = null)
    {
        if (!\Pimcore\Video::isAvailable()) {
            Logger::error("Couldn't create image-thumbnail of video " . $this->getRealFullPath() . " no video adapter is available");
            return new Video\ImageThumbnail(null);
            // returns error image
        }
        return new Video\ImageThumbnail($this, $thumbnailName, $timeOffset, $imageAsset);
    }