protrolium

Each YouTube video has 4 generated images. They are predictably formatted as follows:

http://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
http://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
http://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
http://img.youtube.com/vi/<insert-youtube-video-id-here>/3.jpg

The first one in the list is a full size image and others are thumbnail images. The default thumbnail image (ie. one of 1.jpg, 2.jpg, 3.jpg) is:

http://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg

dmassiani

######################
#  	Change html pagenavi for transform like bootstrap
######################

//attach our function to the wp_pagenavi filter
add_filter( 'wp_pagenavi', 'wd_pagination', 10, 2 );
 
//customize the PageNavi HTML before it is output
function wd_pagination($html) {
	$out = '';