how to hide title ?

According to http://stackoverflow.com/questions/18342536/how-to-hide-the-bar-at-the-top-of-youtube-even-when-mouse-hovers-over-it you can do &showinfo=0

So:

add_filter("hyrv_extra_querystring_parameters", "my_hyrv_extra_querystring_parameters");
function my_hyrv_extra_querystring_parameters($str) {
    return "wmode=transparent&showinfo=0&";
}

in your functions.php file.