post format video

I am developing a theme to be shared in the WP theme directory, adding post formats support, would be valid to have:
– template file content-video.php with just the main loop to show contents.
– The following code in functions.php:

function themeName_setup() {
    add_theme_support(
        'post-formats',
        array(
            'aside',
            'image',
            'link',
            'quote',
            'status',
            'video'
        )
    );

    add_action('init', 'themeName_post_type_init');
    function themeName_post_type_init() {
        add_post_type_support(
            'post-formats',
            array(
                'aside',
                'image',
                'link',
                'quote',
                'status',
                'video'
            )
        );
    }
}
add_action( 'after_setup_theme', 'themeName_setup' );

function themeName_content_width() {
    if(
        is_page_template( 'page-templates/full-width.php' ) ||
        is_attachment() ||
        ! is_active_sidebar( 'sidebar-1' ) ||
        has_post_format( 'video' )
    ) {
        global $content_width;
        $content_width = 960;
    }
}
add_action( 'template_redirect', 'themeName_content_width' );

Thanks for help.