Create a Thumbnail From a Video with ffmpeg
Creating a thumbnail to represent a video is a frequent task when presenting media on a website. I previously created a shell script to create a preview video from a larger video, much like many adult sites provide. Let's view how we can create a preview thumbnail from a video!
Developers can use `ffmpeg, an incredible open source media utility, to create a thumbnail. To create a thumbnail from the first frame of a video, execute the following command:
ffmpeg -i input.webm -vf "select=eq(n\,34)" -vframes 1 thumbnail.png
Providing a video thumbnail is a great tool convert images into video views. You don't need fancy software and manual labor to create thumbnails -- use ffmpeg!
![Detect DOM Node Insertions with JavaScript and CSS Animations]()
I work with an awesome cast of developers at Mozilla, and one of them in Daniel Buchner. Daniel's shared with me an awesome strategy for detecting when nodes have been injected into a parent node without using the deprecated DOM Events API.
![Write Simple, Elegant and Maintainable Media Queries with Sass]()
I spent a few months experimenting with different approaches for writing simple, elegant and maintainable media queries with Sass. Each solution had something that I really liked, but I couldn't find one that covered everything I needed to do, so I ventured into creating my...
![Input Incrementer and Decrementer with MooTools]()
Chris Coyier's CSS-Tricks blog is everything mine isn't. Chris' blog is rock star popular, mine is not. Chris prefers jQuery, I prefer MooTools. Chris does posts with practical solutions, I do posts about stupid video-game like effects. If I...
![Shake Things Up Using jQuery UI’s Shake Effect]()
Yesterday I created a tutorial showing you how you can shake an element using Fx.Shake, a MooTools component written by Aaron Newton. It turns out that jQuery UI also has a shake effect which can draw attention to an element.
The XHTML
Exactly the same as...