The Magnify application gateway for WordPress enables you to access Magnify’s powerful video discovery and multimedia capabilities within the context of the blogging platform you know and love.
Magnify Publisher is the first native blog application that enables bloggers to search for video, text, and images, using key words and tags, and also embed the desired content directly into a post without ever leaving the Movable Type dashboard. Magnify Publisher also features the ability to shoot and publish videoblog posts using a WebCam.
The Magnify Publisher’s video discovery features allow for fast search embed from YouTube, AOL, Yahoo, BlipTV, Metacafe, DailyMotion, ClipSyndicate, Google Video, Veoh, Red Lasso, and more. Image search is included for Flickr.
Magnify.net is the leading online video discovery and broadcast platform for websites, groups and businesses, with more than 36,000 sites already using the Magnify.net video framework. Magnify Publisher extends Magnify.net’s unique features to the blogosphere and provides a free suite of new resources and timesaving services.
For more information, visit http://www.magnify.net/wp/

Magnify-Publisher-WP

The Magnify Publisher for WordPress enables you to access Magnify.net's powerful video discovery and multimedia capabilities within WordPress.

Kyle Gilman

<h4>A plugin to make video players, thumbnails, multiple resolutions, and video galleries.</h4>
This video plugin adds several options to any video uploaded to the WordPress Media Library. If your video can be played natively in your browser, or if you have FFMPEG installed on your server (optional), you can generate thumbnails from your video. Using either the “Generate” or “Randomize” buttons will create a selection to choose from. Click “Insert into Post” and you’ll get a shortcode in the post editor that will make a flexible, responsive video player.
If you provide multiple H.264 resolutions, Videopack can automatically select the one closest to the size of the player or a resolution of your choice, and provide a button for users to select the resolution manually. If FFMPEG is installed on your server, Videopack can encode the videos automatically.
You can also use Videopack to create a popup video gallery. The shortcode uses options similar to the <a href="https://codex.wordpress.org/Gallery_Shortcode" rel="nofollow ugc">WordPress image gallery shortcode</a>. In its simplest form it will create a gallery of all videos attached to the post.
You can now add advertisements to your videos using the <a href="https://www.videopack.video/add-ons/videopack-ads/" rel="nofollow ugc">Videopack Ads</a> premium add-on which you can purchase from the Add-ons tab of the Videopack Settings page or on the <a href="https://www.videopack.video/add-ons/videopack-ads/" rel="nofollow ugc">Videopack website</a>.
Not compatible with the Block Editor. Please continue to use the <a href="https://wordpress.org/plugins/classic-editor/" rel="ugc">Classic Editor</a>.
Visit the <a href="https://www.videopack.video/docs/" rel="nofollow ugc">Videopack Documentation pages</a> for more info.

Videopack

Great solution for generating thumbnails from images. 
Thank you for the work put into this plugin.

Excellent

Makes video thumbnails, allows resolution switching, and embeds responsive self-hosted videos and galleries.

Magnify-Publisher-WP vs Videopack