jquery:snippet:Get youtube or vimeo thumbnail url

youtube-vimeo-thumbnail.js

	function get_video_thumb(url, callback){
	    var id = get_video_id(url);
	    if (id['type'] == 'y') {
	        return processYouTube(id);
	    } else if (id['type'] == 'v') {

	        $.ajax({
	            url: 'http://vimeo.com/api/v2/video/' + id['id'] + '.json',
	            dataType: 'jsonp',
	            success: function(data) {
	                callback({type:'v', id:id['id'], url:data[0].thumbnail_large});
	            }
	        });
	    }

	    function processYouTube(id) {
	        if (!id) {
	            throw new Error('Unsupported YouTube URL');
	        }

	        callback({type:'y',id:id['id'],url:'http://i2.ytimg.com/vi/'+id['id'] + '/hqdefault.jpg'});
	    }
	}

	function get_video_id(url) {
	        var id;
	        var a;
	    if (url.indexOf('youtube.com') > -1)
	    {
	    	if (url.indexOf('v=') > -1) {
		        id = url.split('v=')[1].split('&')[0];
	    	}
	    	else if (url.indexOf('embed') > -1){
		        id = url.split('embed/')[1].split('?')[0];
	    	};
	        return processYouTube(id);
	    }
	    else if (url.indexOf('youtu.be') > -1)
	    {
	        id = url.split('/')[1];
	        return processYouTube(id);
	    }
	    else if (url.indexOf('vimeo.com') > -1)
	    {
		    if (url.match(/https?:\/\/(www\.)?vimeo.com\/(\d+)($|\/)/))
		    {
		        id = url.split('/')[3];
		    }
		    else if (url.match(/^vimeo.com\/channels\/[\d\w]+#[0-9]+/))
		    {
		        id = url.split('#')[1];
		    }
		    else if (url.match(/vimeo.com\/groups\/[\d\w]+\/videos\/[0-9]+/))
		    {
		        id = url.split('/')[4];
		    }
		   	else if (url.match(/player.vimeo.com\/video\/[0-9]+/))
		    {
		        id = url.split('/')[2];
		    }
		    else {
		        throw new Error('Unsupported Vimeo URL');
		    }

	    }
	    else
	    {
	        throw new Error('Unrecognised URL');
	    }
        a = {type:'v',id:id};
        return a;
		function processYouTube(id) {
		    if (!id) {
		        throw new Error('Unsupported YouTube URL');
		    }
		            a = {type:'y',id:id};
		    return(a); // default.jpg OR hqdefault.jpg
		}
	}
	function callback(video)
	{
		$('.text-slideshow').prepend('<img src="' + video.url + '">');
		console.log(video);
	}
	get_video_thumb('[http://vimeo-or-vimeo-url]', callback);