YouTube Engineering and Developers Blog: 七月 2012

Build Compelling Experiences Using YouTube Embeds With The IFrame Player API

2012年7月27日星期五

If you've hesitated to use the <iframe> player in your app due to the IFrame Player API's experimental status, then wait no more. We've removed that API's 'experimental' tag, which means the API is production-ready and is covered by YouTube's deprecation policy. Since the <iframe> embed is the default way of sharing YouTube videos on the Web, the IFrame Player API is now the recommended mechanism to control video playback behavior in your Web applications.YouTube Upload Widgethttps://www.youtube.com/iframe_apihttp://www.youtube.com/player_apionYouTubeIframeAPIReadyonYouTubePlayerAPIReadyonYouTubePlayerAPIReadydocumentationdeveloper forum--Jarek Wilkiewicz, YouTube API Team

Know What’s Loaded?

2012年7月24日星期二

If you’ve ever developed a custom playback experience based on our Player API, you’ve probably used the getVideoBytesLoaded() and getVideoBytesTotal() methods to determine how much the current video is locally buffered and the size of the entire video. After obtaining this information, the next logical step is to divide the number of bytes loaded by the total number of bytes to obtain the fraction of the video that’s been buffered, which you can then display in your custom user interface.

Instead of taking this two-step approach to calculate how much of a video has buffered, we encourage you to use the new getVideoLoadedFraction() method. It will return a numerical value between 0.0 and 1.0 that represents the same fraction obtained by dividing getVideoBytesLoaded() by getVideoBytesTotal(). While those two legacy methods still work today, they are now officially deprecated, as per the terms of our deprecation policy.

getVideoLoadedFraction() allows us to expose more accurate information to your code about the state of the video that’s currently playing across a wider range of playback scenarios. When HTML5 <video> playback was used in the <iframe> Player, for instance, we previously had to return “fake” values for getVideoBytesLoaded() and getVideoBytesTotal(), as the true byte counts weren’t directly exposed via the <video> element. The value returned by getVideoLoadedFraction() should be correct for that and other playback scenarios that we roll out in the future.

If you have any questions about the new method or anything else related to the YouTube APIs, please let us know in the developer forum.

Cheers,
—Jeffrey Posnick, YouTube API Team

Let’s Hear It From Your Users!

2012年7月19日星期四

Over the past few years we’ve heard two specific pieces of feedback from the YouTube API community:

Developers have clamored for years for a way of embedding a webcam YouTube upload widget on their web pages, similar to the webcam upload tool available at youtube.com/my_webcam.

Developers who have used YouTube Direct in the past have asked for a simpler solution that doesn’t require the same level of technical expertise to set up and manage.

Knowing about this demand made us particularly excited for our Google I/O announcements of the YouTube Upload Widget that supports webcam uploads, and YouTube Direct Lite, both of which are now available for public use.

YouTube Upload Widget
Using the YouTube Upload Widget on your site is as simple as adding an <iframe> to your HTML, like so:

<iframe id="widget" type="text/html" width="640" height="390" src="https://www.youtube.com/upload_embed" frameborder="0">

Developers who want more control over the uploads experience can use a full JavaScript API to initiate the widget, and listen for events related to the upload.

YouTube Direct Lite
YouTube Direct Lite is a complete rewrite of the existing YouTube Direct platform. The goal of the project remains the same: make it possible to solicit videos from your users and then moderate those submissions into standard YouTube playlists for display. The difference is that YouTube Direct Lite is implemented purely in client-side HTML, JavaScript, and CSS, and unlike with YouTube Direct, no Java App Engine deployment is needed. You can download the YouTube Direct Lite code, customize it, and deploy it on your own web server along with the rest of your site’s content. To make things even easier, we’re hosting a canonical deployment of YouTube Direct Lite that you could include on your pages without having to deploy anything at all—just add the appropriate <iframe> tag to your page.

You can find a live example of YouTube Direct Lite integration, including the use of the YouTube Upload Widget, on this sample page. Feel free to use that page to submit a video letting us know how you plan on using the new tools.

Bringing the YouTube Upload Widget and YouTube Direct Lite to web developers and community maintainers will give you new tools to hear from (and see!) your community, and who knows what great things will come from that!

Cheers,
—Eric Lundberg, Jeff Posnick and Vladimir Vuskovic, YouTube API Team

YouTube @ the Google Developers Academy

2012年7月12日星期四

Whether you’re a fledgling developer looking to get started with an API or a skilled developer who wants to learn some new tricks, you’ll find engaging material at the Google Developers Academy. Of particular interest to readers of this blog is the YouTube section, which hosts courses specific to the YouTube APIs.

The first course walks JavaScript developers through the steps needed to embed an <iframe> Player on their page along with a list of chapter titles. It’s perfect when you want to embed a lengthy video that consists of multiple sub-sections, since jumping from section to section is as easy as clicking on predefined links. Check out the live demo of a page with videos from last year’s Google I/O conference to see the player in action.

We will be gradually adding to the YouTube section of the Google Developers Academy, and we’ll announce the new courses on this blog and our YouTube for Developers Google+ page. Stay tuned for more great resources!

Cheers,
—Jeff Posnick, YouTube API Team

Engineering and Developers Blog

Build Compelling Experiences Using YouTube Embeds With The IFrame Player API

Know What’s Loaded?

Let’s Hear It From Your Users!

YouTube @ the Google Developers Academy

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