YouTube Engineering and Developers Blog: December 2010

A Chrome Extension for YouTube Activity Feeds

Wednesday, December 22, 2010

Slave Jovanovski, an engineer at YouTube, has put together a Google Chrome extension that should be of interest to the YouTube API community. It’s called YouTube Feed, and after installing and authenticating with your YouTube account, it automatically will fetch your YouTube social activity stream (both subscriptions and friends’ actions) while you use Google Chrome. When a new event, like a YouTube friend uploading or commenting on a video, takes place, the extension will notify you and provide details on the activity, as well as links to view the actual video. You have control over which types of activities you’d like to be notified about, as well as how frequently you’d like the extension to check for updates.

While you’ll hopefully find the extension useful on its own merits, the fact that the source code has been released as part of an open source project means that the extension’s code can serve as inspiration (or a jumping off point) for writing your own JavaScript code that interacts with the YouTube API. Curious as to how to use OAuth to authenticate YouTube accounts from a Chrome Extension? Or request JSON data with a JavaScript callback? The answers await you in the source code!

Cheers,
–Jeff Posnick, YouTube API Team

Accelerating YouTube Playback

Wednesday, December 1, 2010

The YouTube Players team’s goal is to make sure that watching videos online is as enjoyable an experience as possible. As a viewer, maximizing enjoyment usually involves some tradeoffs: sure, you can watch a 1080p high definition version of the newest movie trailer, but that might mean choppy playback as your computer strains to keep up with the more demanding processing required. We wanted to let you know about some changes we’re making to help minimize those tradeoffs, so that you can watch smoother, higher-quality video from your existing devices.

Adobe’s recently announced Flash Player 10.2 release supports a new, more efficient video display mechanism known as the Stage Video API. The full details of how and why Stage Video speeds up video display can be found in Adobe’s technical documentation. The Players Team will be gradually experimenting with Stage Video playbacks on YouTube.com in the coming weeks, but as a developer using the ActionScript 3 Player APIs, you can enable Stage Video playback for your embedded video right away; simply add the wmode=direct parameter to the player URL that you’re using to reference the YouTube video. You’ll need the Flash Player 10.2 installed to take advantage of the accelerated playback, but playbacks will work for users with older Flash Player versions as well.

The Players Team knows that Stage Video for Flash playbacks is just one path to take toward improving video playback performance across the web. For example, YouTube playbacks using the new <iframe> embeds will automatically benefit as more and more (and more) modern browsers add hardware acceleration for the native HTML5 <video> element.

Cheers,
-Jeff Posnick, on behalf of the YouTube Players team
(Updated 2011-02-09 to reflect the production release of Flash Player 10.2.)

Engineering and Developers Blog

A Chrome Extension for YouTube Activity Feeds

Accelerating YouTube Playback

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