protected function setFilesParameters(ContainerBuilder $container, array $config, YamlFileLoader $loader)
    {
        $container->setParameter(
            'open_orchestra_media_admin.files.thumbnail_format',
            $config['thumbnail']
        );

        $container->setParameter(
            'open_orchestra_media_admin.files.alternatives.default.thumbnail',
            $config['files']['alternatives']['default']['thumbnail']
        );

        $container->setParameter(
            'open_orchestra_media_admin.files.alternatives.audio.thumbnail',
            $config['files']['alternatives']['audio']['thumbnail']
            );

        if (count($config['files']['alternatives']['image']['formats']) > 0) {
            $container->setParameter(
                'open_orchestra_media_admin.files.alternatives.image.formats',
                $config['files']['alternatives']['image']['formats']
            );
        } else {
            $loader->load('alternatives_formats.yml');
        }
    }