This plugin allows insert and edit the new HTML5 <video> element. The dialog allows to specify the poster image, the dimensions (they are automatically adjusted according to the preview) and two source files, so that both the browsers that use the WebM format (Chrome, Firefox and Opera) and the ones that support only h264 (IE9 and Safari) can view your videos.
Here's a short video showing how it works.
Further explanations at the post in my blog.
Plugin sponsored by DM Logic
Licensed under the terms of any of the following licenses at your choice: GPL, LGPL and MPL.
1.3: Fix a problem with IE9, wrap the element in a <div> to avoid empty <p>s after switching from source, it's compatible with both v3 and v4
Video version 1.3:
1. Extract the contents of the file into the "plugins" folder of CKEditor.
2. In the CKEditor configuration file (config.js) add the following code:
config.extraPlugins = 'video';
3. In your toolbar configuration, add a new 'Video' item in the place where you want the button to show up.
All the details and options are explained in the included install doc.