How to add a div around Wordpress embeds using the oembed filter

gistfile1.txt

function worpress_responsive_embeds($html)
{
    if (stripos($html, "twitter") !== FALSE || stripos($html, "facebook") !== FALSE) {
        return '<div class="social-embed-container">' . $html . '</div>';
    }
    else {
        return '<div class="video-container">' . $html . '</div>';
    }
}

add_filter('embed_oembed_html', 'wordpress_responsive_embeds', 10, 3);