if( ! function_exists( 'videotube_redirect_to_after_logged_in' ) ){

    /**
     * Redirect logged in user to custom url
     * @param string $redirect_to
     * @param int $user_id
     */

    function videotube_redirect_to_after_logged_in( $redirect_to, $user_id ) {

        $redirect_to    =   'http://custom-url.com';

        return $redirect_to;

    }
    add_filter( 'vt_logged_redirect_to' , 'videotube_redirect_to_after_logged_in', 20 );
}