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!
![fetch API]()
One of the worst kept secrets about AJAX on the web is that the underlying API for it, XMLHttpRequest, wasn't really made for what we've been using it for. We've done well to create elegant APIs around XHR but we know we can do better. Our effort to...
![5 Awesome New Mozilla Technologies You’ve Never Heard Of]()
My trip to Mozilla Summit 2013 was incredible. I've spent so much time focusing on my project that I had lost sight of all of the great work Mozillians were putting out. MozSummit provided the perfect reminder of how brilliant my colleagues are and how much...
![Web Notifications API]()
Every UI framework has the same set of widgets which have become almost essential to modern sites: modals, tooltips, button varieties, and notifications. One problem I find is each site having their own widget colors, styles, and more -- users don't get a consistent experience. Apparently the...
![jQuery Link Nudging]()
A few weeks back I wrote an article about MooTools Link Nudging, which is essentially a classy, subtle link animation achieved by adding left padding on mouseover and removing it on mouseout. Here's how to do it using jQuery:
The jQuery JavaScript
It's important to keep...