Camera and Microphone
Cameras and microphones have been common on desktop and laptop computers for a long time, and with the rise of mobile devices they’ve become extremely prevalent—almost ubiquitous. But for years, we’ve had to rely on third-party plug-ins, such as Flash and Java, to get audio and video input on the Web, so a native input method is more than overdue.
This native input comes in the shape of the getUserMedia() method, part of the WebRTC project, which I’ll discuss in more detail in Chapter 9. The getUserMedia() method is on the navigator object, and takes up to three arguments: The first is for options about the stream, such as whether to accept only audio, only video, or both; the second is a callback fired when a successful ...
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