Proceed to the next video of the custom post type but remain on the same post

So I have a custom post type in WordPress that displays html5 videos. Is there a way I could automatically play the next video once it’s over and still remain on the same post? I’m thinking something like this would be the perfect example.

Here’s a link to what I have so far.

I have a custom post type called nowthisearth_post and a custom field nowthisearth_media_url that is pulling in the link to the MP4 file. Right now there are 6 posts and would like for it to proceed to the next one after the video ends. Here’s what I have right now..

I started off using the get_next_post(); function but it doesn’t seem to work. I’m thinking maybe it would need to be converted into some sort of video playlist with thumbnails at the bottom.

<div class="container-fluid nowthis-header">
<div class="container" style="z-index:11;">
    <div class="row">
        <div class="col-12">
            <?php $mrssfeed_url = get_post_meta(get_the_id(), 'nowthisearth_media_url', true);?>
            <video class="nowthis-video" style="" width="1280" height="720" autoplay="true" controls loop>
              <source src="https://wordpress.stackexchange.com/<?php echo $mrssfeed_url ?>" type="video/mp4">
                Your browser does not support the video tag.
            </video>
        </div>
        <div class="col-12">
            <?php $next_post = get_next_post();
            if ( is_a( $next_post , 'nowthisearth_post' ) ) : ?>
                <a href="<?php echo get_permalink( $next_post->ID ); ?>"><?php echo get_the_title( $next_post->ID ); ?></a>
            <?php endif; ?>
        </div>
    </div>
</div>