WebRTC: Video telephony without a browser plugin
People who use video chat and other forms of real-time Internet communication often rely on Skype or similar tools. Web browsers too often depend on Flash or Java plugins for real-time communication. The latest generation of browsers, however, offer a powerful new tool for building real-time communication into scripts and homegrown web applications. WebRTC (Real-Time Web Communication) [1] supplements the new HTML5 standard by bringing native real-time communication to the browser.
WebRTC can handle video chat and similar formats. Communication occurs directly from browser to browser, without the need for an intervening web application. In this article, I show how easy it is to build a homegrown Internet video chat application by integrating WebRTC with the usual collection of web developer tools: HTML, JavaScript, CSS, and Node.js.
WebRTC is jointly promoted by browser vendors such as Google, Mozilla, and Opera. (Microsoft considers WebRTC to be too complicated and has presented UC-RTC [2] as its own design for real-time communication in browsers.) Although the WebRTC specification is not yet complete, the Google Chrome and Mozilla Firefox 22 web browsers already largely support it. WebRTC is a free standard described in a set of IETF documents [3], and W3C has already accepted a draft for a programming interface [4] for WebRTC in the browser.
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