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!
![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...
![Interview with a Pornhub Web Developer]()
Regardless of your stance on pornography, it would be impossible to deny the massive impact the adult website industry has had on pushing the web forward. From pushing the browser's video limits to pushing ads through WebSocket so ad blockers don't detect them, you have...
![Add Site Screenshots for External Links Using MooTools Tooltips]()
Before you send your user to an unknown external website, why not provide them a screenshot of the site via a tooltip so they may preview the upcoming page? Here's how you can do just that using MooTools.
The MooTools JavaScript
The first step is to grab...
![Multiple Background CSS Animations]()
CSS background animation has been a hot topic for a long time, mostly because they look pretty sweet and don't require additional elements. I was recently asked if it was possible to have multiple background animations on a given element and the answer is yes...with...
