How to Crop Videos
During a recent episode of the Script and Style podcast, I had noticed that the video recording had showed a bit of our internal chat that wasn't necessary for our viewers to see. While there's nothing wrong with giving viewers a peek into the show preparation, presenting the best possible video is our priority. So how can we crop a video via command line?
The amazing ffmpeg utility allows engineers to crop videos with one easy to use filter:
# Crop an image to 500x500 starting at 0x0
ffmpeg -i sns-episode.webm -filter:v "crop=500:500:0:0" sns-episode-cropped.mp4
The crop filter format is easy to follow: {desired_width}:{desired_height}:{start_x}:{start_y}.
I've written dozens of posts about ffmpeg and how it has the power to manipulate videos in amazing ways. Now you know how to crop videos quickly from command line!
![LightFace: Facebook Lightbox for MooTools]()
One of the web components I've always loved has been Facebook's modal dialog. This "lightbox" isn't like others: no dark overlay, no obnoxious animating to size, and it doesn't try to do "too much." With Facebook's dialog in mind, I've created LightFace: a Facebook lightbox...
![Create a Sheen Logo Effect with CSS]()
I was inspired when I first saw Addy Osmani's original ShineTime blog post. The hover sheen effect is simple but awesome. When I started my blog redesign, I really wanted to use a sheen effect with my logo. Using two HTML elements and...
![Animated AJAX Record Deletion Using MooTools]()
I'm a huge fan of WordPress' method of individual article deletion. You click the delete link, the menu item animates red, and the item disappears. Here's how to achieve that functionality with MooTools JavaScript.
The PHP - Content & Header
The following snippet goes at the...
![jQuery Comment Preview]()
I released a MooTools comment preview script yesterday and got numerous requests for a jQuery version. Ask and you shall receive! I'll use the exact same CSS and HTML as yesterday.
The XHTML
The CSS
The jQuery JavaScript
On the keypress and blur events, we validate and...
