Nine months ago we launched our cloud-based video editor. It was a simple product built to provide our users with simple editing tools. Although it didn’t have all the features available on paid desktop editing software, the idea was that the vast majority of people’s video editing needs are pretty basic and straight-forward and we could provide these features with a free editor available on the Web. Since launch, hundreds of thousands of videos have been published using the YouTube Video Editor and we’ve regularly pushed out new feature enhancements to the product, including:
  • Video transitions (crossfade, wipe, slide)
  • The ability to save projects across sessions
  • Increased clips allowed in the editor from 6 to 17
  • Video rotation (from portrait to landscape and vice versa - great for videos shot on mobile)
  • Shape transitions (heart, star, diamond, and Jack-O-Lantern for Halloween)
  • Audio mixing (AudioSwap track mixed with original audio)
  • Effects (brightness/contrast, black & white)
  • A new user interface and project menu for multiple saved projects
While many of these are familiar features also available on desktop software, today, we’re excited to unveil two new features that the team has been working on over the last couple of months that take unique advantage of the cloud:
  • Stabilizer - Ever shoot a shaky video that’s so jittery, it’s actually hard to watch? Professional cinematographers use stabilization equipment such as tripods or camera dollies to keep their shots smooth and steady. Our team mimicked these cinematographic principles by automatically determining the best camera path for you through a unified optimization technique. In plain English, you can smooth some of those unsteady videos with the click of a button. We also wanted you to be able to preview these results in real-time, before publishing the finished product to the Web. We can do this by harnessing the power of the cloud by splitting the computation required for stabilizing the video into chunks and distributed them across different servers. This allows us to use the power of many machines in parallel, computing and streaming the stabilized results quickly into the preview. You can check out the paper we’re publishing entitled “Auto-Directed Video Stabilization with Robust L1 Optimal Camera Paths.” Want to see stabilizer in action? You can test it out for yourself, or check out these two videos. The first is without stabilizer.



And now, with the stabilizer:



  • 3D - When we first launched our 3D product one of the hardest parts turned out to be actually building our makeshift 3D camera to film our introductory 3D video (two flip cameras mounted to a flat metal bar 10 inches apart and using $8 worth of bolts and brackets we bought at the hardware store). Although the side-by-side compositing needed for 3D uploads isn’t complex, it’s unavailable in free editing tools. This was frustrating because although users could film using a pair of cameras, the 3D feature was still out of reach. And synchronising the two cameras is an added challenge. If you've used a pair of cameras to capture stereographic video, but need the two streams to be synchronized and laid out in a way compatible with YouTube's 3D feature, this new tool will do the work for you. Feel free to try it out.
One of the great things about YouTube is being able to launch products quickly with a small team of engineers that impact hundreds of millions of users from around the world. In this case we had seven engineers and one designer who’ve contributed to this product. We look forward to announcing more Editor enhancements down the road. Let us know what you think and paste links of your stabilized or 3D-ified videos in the comments below.

Sam Kvaalen, software engineer, recently watched “PANGEA The Neverending World - 3D Animation” and Tom Bridgwater, software engineer, recently watched “Die Fantastischen Vier - Danke (Official Video)