Genesis Featured Video Thumbnails for Single Pages

genesis-featured-videos-for-single-pages.php

//* Featured Videos for Single Entries
add_action( 'genesis_before_entry', 'featured_video_plus_single_page_override', 9 );
function featured_video_plus_single_page_override( $output ){
    
    $image_args = array(
		'size' => 'large',
		'attr' => array(
			'class' => 'alignnone featured-image',
		),
	);

    if( is_singular( array( 'post', 'page' ) ) && function_exists('has_post_video') && has_post_video()) {
        return the_post_video();
    } else {
        return genesis_image( $image_args );
    }

}