YouTube Engineering and Developers Blog: io2011

YouTube @ Google I/O: Your Game + YouTube = Instant Community

Thursday, July 28, 2011

Call of Duty: Black Opsupload APIsGoogle I/O 2011“Your Game + YouTube = Instant Community”ActivisionThe presentation gives an overview of YouTube platform features relevant to the gaming audience and highlights the benefits that integrating gameplay video uploads can bring into your title. The session also covers the good, the bad and the ugly of the integration project that Black Ops team had undertaken on a compressed timeframe. Finally, we show a couple of examples of user-generated gameplay video clips from Blacks Ops. Since hindsight is 20/20, especially as it relates to software projects, the presentation also features a small demo of OAuth 2.0 for Devices authorization flow. OAuth 2.0 for Devices streamlines authorization process for embedded devices such as gaming consoles. While the technology was not yet released at the time of Activision’s integration, it is now in Beta. Another example of technology not initially introduced in the integration is WebM/VP8 encoding. If you watch the video you will learn about why the video clips were restricted in size and how WebM helps with solving this issue. The full video of the session is embedded below, and you can find the slides here.

Cheers,—Jarek Wilkiewicz, YouTube API Team

YouTube @ Google I/O: API Bootcamp

Monday, June 13, 2011

There was more to Google I/O 2011 than formal presentations—Google I/O BootCamp was a day-long developer event geared towards providing beginning-level content to newer developers. Two engineers who work on the YouTube Data API, Raul Furnică and Günther Noack, participated in a BootCamp session that introduced the YouTube Data API and covered examples of how it could be used to discover and curate YouTube content.

If you’re just getting started with the YouTube Data API and want an overview of what it offers, or if you have a particular interest developing apps for content curation, please do check out the session video embedded below!

Cheers,
—Jeff Posnick, YouTube API Team

YouTube @ Google I/O: All About Captioning

Friday, June 3, 2011

Google I/O 2011 may be over, but we’re continuing our series of blog posts recapping the great developer material covered at the event. We previously covered our talk on the iframe Player API, and the next presentation we’re highlighting is “The YouTube Caption API, Speech Recognition, and WebVTT captions for HTML5”.

The session features Jeff Posnick from the YouTube Developer Relations team, Naomi Black from the Accessibility Engineering team, and Cynthia Boedihardjo, a Live Stream Program Manager. As the session’s title suggests, a number of different topics were covered, with video accessibility and captions the common theme throughout.

The material covering the YouTube Captions API, including a sample application that demonstrates using the API from Python, will be of particular interest to the YouTube API developer community. The talk also includes some early WebKit demos of WebVTT implementations for the <track> element in HTML5 as well as more information and stats about the Live Caption gadget launched at Google I/O. The gadget provides captions alongside streaming video.

The full video of the session is embedded below, and the slides from the talk are available as well.

Cheers,
—Jeff Posnick, YouTube API Team

YouTube @ Google I/O: The iframe Player API

Tuesday, May 31, 2011

Google I/O 2011 may be over, but all the great developer information lives on! We want to start our recap of YouTube-related I/O activities by highlighting our developer presentation entitled “YouTube’s iframe Player: The Future of Embedding”.
The session features Jeff Posnick and Jarek Wilkiewicz from the YouTube Developer Relations team, and Greg Schechter, one of the engineers who works on the iframe Player and its API. Topics covered include the development of the iframe Player, challenges related to exposing an API on an iframe element, differences between the ActionScript 3 Player API and the iframe Player API, and real-world example applications that use the new API.

The full video of the session is embedded below (using the iframe Player, of course), and the slides from the talk are available if you’d prefer to read along with the presentation. Be sure to check out the sample web application (along with its source) that illustrates iframe Player API usage as well!

Cheers,
—Jeff Posnick, YouTube API Team

Making stories with social media and YouTube videos

Sunday, May 1, 2011

By Xavier Damman, co-founder of Storify(Cross-posted from the Google Code blog, where the post is part of Who's at Google I/O, a series of guest blog posts written by developers who are appearing in the Developer Sandbox at Google I/O.)StorifyGoogle I/O SandboxSlideShareaudioboosee Storify in action hereYouTube Data APIPlayer APINodeJSMongoDB

The source of the sourceJSONpJSON-Crequest: function(formdata) {
return {
'url' : 'http://gdata.youtube.com/feeds/api/videos',
'params': {
'v' : 2,
'max-results' : 20,
'alt' : 'jsonc',
'q' : formdata.keywords
}
};
}
results: function(json) {

if (json.data && json.data.totalItems && json.data.totalItems == 0) {
throw "No results found";
}

var videos = json.data.items;
var results_array = [];

for (var i = 0; i < videos.length; i++) {
var normalizedResult = {
permalink : 'http://www.youtube.com/watch?v='+videos[i].id,
source : 'youtube',
elementClass : 'video',
metadata : videos[i],
thumbnail : videos[i].thumbnail.sqDefault,
title: videos[i].title,
description : videos[i].description.substr(0,140),
author: {username: videos[i].uploader },
created_at : videos[i].uploaded,
oembed: {html: '<iframe id="youtube-'+videos[i].id+'" type="text/html" width="360" height="294" src="http://www.youtube.com/embed/'+videos[i].id+'?enablejsapi=1&origin=storify.com" frameborder="0">'
}};

results_array.push(normalizedResult);
}
return results_array;
}
YouTube Player API with their new iframe embedStory.jsonstorify.com

http://storify.com/latest.json?topic=googleio returns the latest stories with the tag #googleio

http://storify.com/xdamman.json returns the user object and the user’s latest stories.

http://storify.com/xdamman/googleio.json returns the story object of the story “GoogleIO” of xdamman. You can use this to easily filter the elements of the story to retrieve only the YouTube videos of a given story and create a fancy HTML5 visualization (see the slideshow or this version). You can see some open source examples at http://github.com/storify/templates.

Add the Storify Editor to your sitehttp://storify.com/story/new?callback=yoursiteurlcallbackyoursiteurlcallback?permalink=storyPermalinkstoryPermalink<script src=”storyPermalink.js”></script>Google I/O Sandboxarticle in the New York TimesCome see Storify in the Developer Sandbox at Google I/O on May 10-11.Xavier Damman is the co-founder of Storify. He is also the founder of HackDemocracy, a community of hackers who want to improve our democracies using technology.

ShortForm: Mix and Share the World's Videos

Thursday, April 28, 2011

By Jereme Monteau, Lead Developer at ShortForm
(Cross-posted from the Google Code blog, where it is a part of Who's at Google I/O, a series of guest blog posts written by developers who are appearing in the Developer Sandbox at Google I/O.)
ShortForm is a new entertainment medium where you find continuous channels of the best videos, curated by a growing community of VJs. At ShortForm you can be a viewer, a VJ, or both. Viewers subscribe to channels of interest, lean back, and enjoy a continuous stream of videos. VJs mix and share the world’s best videos into continuous channels.

The developers at ShortForm worked with various YouTube Data APIs in order to deliver both the Viewer and VJ experience.

Standard Feeds and User Playlists: ShortForm makes it easy and fun for anyone to VJ a channel. We also auto-curate a select set of channels to surface mainstream content that would appeal to most audiences. For example, our YouTube Hits channel includes content from the standard YouTube video feeds such as Top Rated, Most Viewed and Most Popular. ShortForm developed a system for retrieving video entries and their associated metadata, and then ordering them in playlists based on a ranking algorithm.

Favorites and Uploads: ShortForm allows VJs to import their YouTube favorites and uploads into their channels quickly and easily by authenticating via YouTube’s OAuth provider. Once a user has connected their ShortForm account to their YouTube account, we are able to allow them to import their favorites and uploads through an authenticated call to the YouTube Data API. In the future we will streamline the process of uploading videos to YouTube by allowing VJs to upload videos to YouTube directly from ShortForm while adding those videos to their ShortForm channel in the same flow.

Player API: Providing a seamless channel viewing experience on ShortForm requires that we integrate tightly with YouTube’s JavaScript API to the ActionScript 3 player. This allows us to properly handle video events to ensure continuous playback. Users have full control over their viewing experience using the next and previous video buttons, which load videos into the YouTube player. We have also begun integrating with the new iframe API interface that is currently in beta and have seen promising results in our initial tests across desktop and mobile platforms.

Android Tablet: Tablet computing represents an exciting opportunity for ShortForm to provide a first class viewing experience in a new package. We have begun testing and looking for places to optimize the viewing experience on tablet devices.

ShortForm Widget: Our embeddable widget syntax was inspired by YouTube’s new iframe embed syntax. We believe this is the simplest, most flexible and most powerful way to allow our users to embed their channels anywhere on the web.

We are thrilled to be a part of Google I/O and in order to demonstrate the power of ShortForm, we are putting together a Google I/O Sandbox channel, a continuous channel of product pitches and demos from companies represented in the I/O Developer Sandbox. We invite all Sandbox companies to submit a video of their product pitch or demo. Details can be found at the ShortForm at Google I/O page. Well use the channel to preview cool companies in the Sandbox before the conference. The channel will also provide media members with a summary of all the technology from all sandbox companies.

Lastly, we are going to have a little fun and invite all attendees to vote on their favorite pitches and demos. Submit your video on the ShortForm at Google I/O page. We’ll surface a leaderboard showing videos with the top votes, and the winning entry will be highlighted in a press release and will get prime placement on ShortForm’s homepage for one week, reaching hundreds of thousands of people.

Come see ShortForm in the Developer Sandbox at Google I/O on May 10-11.
As a founding member of ShortForm Jereme has been hacking around with the YouTube APIs for over a year now and has been building software for 15 years. When he’s not coding he’s probably trail running or roasting his own coffee while eagerly anticipating the arrival of his first child in June!

Engineering and Developers Blog

YouTube @ Google I/O: Your Game + YouTube = Instant Community

YouTube @ Google I/O: API Bootcamp

YouTube @ Google I/O: All About Captioning

YouTube @ Google I/O: The iframe Player API

Making stories with social media and YouTube videos

ShortForm: Mix and Share the World's Videos

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