Get Attachment for Video

Hi guys,

There is a plugin that let’s me upload a title, description and image with a form.

If you send it, it creates and automatic post with the title, description and the image.

The code for showing the image is:

if ( has_post_thumbnail() && is_single() ) { 
		$large_image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large' );
		?>
		<div class="attachments">
			<p class="image-caption"> <?php _e('Ingezonden video:','feature-request'); ?> </p>
			<figure class="avfr-image post-image">
				<?php 
				echo '<a rel="lightbox" href="' . $large_image_url[0] . '" title="' . the_title_attribute( 'echo=0' ) . '">';
				the_post_thumbnail( 'thumbnail' );
				echo '</a>';
				?>

I would like to rewrite the code so that I can upload a video and it automaticly posts the video , just like the image.

Can somebody help me with the code?