james_barrett on "Help with a loop"

I am working with a template that uses colour box. My problem is that the loop will only link to the featured image that I upload. I need to code the loop so that if I upload a video in the post the colorbox will open with a video player instead of the image. I need to add code to say if video display video link in colorbox. I hope this is clear.

loop.php

<?php if (have_posts()) : ?>

		<?php while (have_posts()) : the_post(); ?>

            <li><div id="post-<?php the_ID(); ?>">

                <div class="post-home">

                	 <?php
                        $thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), '' );
                        $url = $thumb['0'];
                    ?>

                    <div class="view view-first">
                    <?php if ( has_post_thumbnail()) : ?>
                        <a href="<?php echo $url ?>" title="<?php the_title_attribute(); ?>">
                    <?php the_post_thumbnail('hp-thumb'); ?>
                        </a>
                    <?php endif; ?>
                    <div class="mask">
                        <h2><?php the_title(); ?></h2>
                    <p class="link-btn"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php printf(__('Permanent Link to %s', 'responsive'), the_title_attribute('echo=0')); ?>"><i class="icon-link"></i></a>
                        <a href="<?php echo $url ?>" title="<?php the_title_attribute(); ?>" rel="colorbox"><i class=" icon-camera"></i></a>
                    </p>
                    </div>
                    </div> 

                </div><!-- end of .post-home-->
            </div><!-- end of #post-<?php the_ID(); ?> -->

home.php

<script type="text/javascript">
    jQuery(document).ready(function($) {

        var count = 2;
        var total = <?php echo $wp_query->max_num_pages; ?>;
        $(window).scroll(function(){
                if  ($(window).scrollTop() == $(document).height() - $(window).height()){
                   if (count > total){
                   	  	return false;
                   }else{
                   		loadArticle(count);
                   }
                   count++;
                }
        }); 

        function loadArticle(pageNumber){ 

                $('a#inifiniteLoader').show('slow');

                $.ajax({
                    url: "<?php bloginfo('wpurl') ?>/wp-admin/admin-ajax.php",
                    type:'POST',
                    data: "action=infinite_scroll&page_no="+ pageNumber + '&loop_file=loop',
                    success: function(html){
                        $('a#inifiniteLoader').hide('1000');

                        $("#tiles").append(html);    // This will be the div where our content will be loaded
                        $("a[rel='colorbox']").colorbox({
                                transition:'elastic',
                                opacity:'0.7',
                                maxHeight:'90%'
                        });
                    }
                });
            return false;
        }

    });

</script>