Sulu\Bundle\MediaBundle\Api\Media::getFallbackLocale PHP Method

    public function getFallbackLocale()
    {
        if (!$this->getLocalizedMeta()) {
            return;
        }
        $fallbackLocale = $this->getLocalizedMeta()->getLocale();
        return $fallbackLocale !== $this->locale ? $fallbackLocale : null;
    }