YouTube oEmbed Filter

gistfile1.php

// customize embed settings
function custom_youtube_settings($code){
	if(strpos($code, 'youtu.be') !== false || strpos($code, 'youtube.com') !== false){
		$return = preg_replace("@src=(['\"])?([^'\">\s]*)@", "src=$1$2&showinfo=0&rel=0&autohide=1", $code);
		return $return;
	}
	return $code;
}

add_filter('embed_handler_html', 'custom_youtube_settings');
add_filter('embed_oembed_html', 'custom_youtube_settings');