/**
* Convert format file.
*/
private function createPicture()
{
$ff = new FFmpeg();
$ff->setFile($this->document->getPathDat());
$this->getNewDocument()->setDatas($ff->getPicture($this->getPage() !== null ? $this->getPage() : 50));
$this->getNewDocument()->setEncoding(Document::TYPE_BINARY_STR);
$this->getNewDocument()->setFormat($ff->getFormat());
$this->getNewDocument()->setSize($ff->getSize());
$this->getNewDocument()->setType($ff->getTypeMine());
$this->getNewDocument()->setName($this->document->getName());
$this->getNewDocument()->setWeight(strlen($this->getNewDocument()->getDatas()));
$this->setPage(null);
}
