ayoubmedia

Insert YouTube™ videos directly in your post in one of the following ways:
<ol>
<li>Embed video.</li>
<li>shortCode for embed video.</li>
<li>YouTube image with popup video using thickbox.</li>
<li>YouTube image with a link to the video on YouTube website.</li>
<li>YouTube original title with a link to the video on YouTube website. </li>
</ol>
You can insert the original title and description in your post. 
You can resize the embed video or image.
“AM – YouTube it” works out of the box. Just install it, activate it and use it.

AM YouTube it

webdevstudios

Brad Parbs

Justin Sternberg

pluginize

Gary Kovar

coreymcollins

When placing a YouTube or Vimeo video within the first 4000 characters of a post, the thumbnail of that video will automatically be uploaded and set as the featured image for the post as long as the post does not already have a set featured image.
In addition, after setting the video thumbnail as the featured image, an “is_video” post meta field is updated to allow for the use of conditional statements within your loop.
<a href="https://pluginize.com/?utm_source=automatic-feat-images&utm_medium=text&utm_campaign=wporg" rel="nofollow ugc">Pluginize</a> was launched in 2016 by <a href="https://webdevstudios.com/" rel="nofollow ugc">WebDevStudios</a> to promote, support, and house all of their <a href="https://pluginize.com/shop/?utm_source=automatic-feat-images&utm_medium=text&utm_campaign=wporg" rel="nofollow ugc">WordPress products</a>. Pluginize is not only creating new products for WordPress all the time, but also provides <a href="https://wordpress.org/plugins/custom-post-type-ui/" rel="ugc">ongoing support and development for WordPress community favorites like CPTUI</a>, <a href="https://wordpress.org/plugins/cmb2/" rel="ugc">CMB2</a>, and more.

Automatic Featured Images from Videos

Tried this a bunch of times and it doesnt work. No errors or warnings, it just never sets the featured image

No longer works

An essential part of our Wordpress website. Saved hours of work. Thanks very much.

Just cool

If a YouTube or Vimeo video embed exists near the start of a post, we'll automatically set the post's featured image to a thumbnail of the video.

AM YouTube it vs Automatic Featured Images from Videos