LucP

Featured video allows you to add a YouTube or Vimeo video to one of your posts and get to it using the shortcode [featured-video], 
next to that you can also embed it right in the code of your theme with the_post_video()!
the_post_video() returns your video standard with a 560×315 resolution. You can pass along the width and height, if 
you would like to change this, so: the_post_video(600,400) will return the video with a resolution of 600×400.
Next to the width and height you can pass along the window mode (only for youtube) which defaults to transparent. 
You can also edit the ‘allowfullscreen’ variable of the iframe. So a featured video with different width, height, 
windowmode and allowfullscreen would be: 
the_post_video(600,400,’window’,”);
There are a few other functions you can use in your theme (all parameters are optional):
<pre><code>has_post_video(post_id) // same as has_post_thumbnail(), returns true or false.
get_the_post_video(post_id, width, height, windowmode, allowfullscreen) // will not echo the video. Has the option to pass a post_id 
the_post_video_thumbnail(post_id) // show the video thumbnail
get_the_post_video_thumbnail(post_id) // will not echo the video thumbnail directly.
the_post_video_image(post_id) // get the big version of the thumbnail
get_the_post_video_image(post_id) //will not echo the video image directly
</code></pre>
This plugin currently only supports YouTube and Vimeo and works with the url’s of single video’s.

Featured Video

Featured video is exactly the same as a featured image. It allows you to easily link a YouTube or Vimeo video to a post.

Jordy Meow

RSS Featured Image adds the featured image into your RSS feed (in the media:content). It works nicely with Mailchimp (|RSSITEM:IMAGE|). In fact, it basically does the same thing as another (and more famous) plugin but without cluttering your WordPress Admin. This is a simple task, and I believe it should be invisible and run peacefuly in the background, with no impact on the UI and the overall WordPress performance.
<h3>Usage</h3>
By default, the size of the image is “large”. I think it would be a shame to add new options to your WordPress admin only for this, so if you want to change the size, I propose you a filter 🙂 You can include some code in your functions.php to take care of this. This is how you can use it:
function thumbnail_size_for_rss( $default ) { 
 return ‘thumbnail’; 
} 
add_filter( ‘rfi_rss_image_size’, ‘thumbnail_size_for_rss’, 10, 1 );

RSS Featured Image

Add the featured image into your RSS feed (in the media:content). Works nicely with Mailchimp (|RSSITEM:IMAGE|). Light and simple, no options, no clut …

Featured Video vs RSS Featured Image