react-webcam

Webcam component for React. See the can I use this feature site for browser support for media streams in HTML.

Note: Browsers will throw an warning if the page is loaded from insecure origin. i.e. Use https outside of development.

Installation

npm install @chanoch.com/react-webcam

Usage

import React from 'react';
import Webcam from 'react-webcam';

class Component extends React.Component {
  render() {
    return <Webcam/>;
  }
}

Props

prop	type	default	notes
className	string	''	CSS class of video element
audio	boolean	true	enable/disable audio
height	number	480	height of video element
width	number	640	width of video element
screenshotWidth	number		width of screenshot
style	object		style prop passed to video element
screenshotFormat	string	'image/webp'	format of screenshot
onUserMedia	function	noop	callback when component receives a media stream
onUserMediaError	function	noop	callback when component cannot receives any media stream width error param
screenshotQuality	number	0.92	quality of screenshot(0 to 1)
audioConstraints	object		MediaStreamConstraint(s) for the audio
videoConstraints	object		MediaStreamConstraints(s) for the video

Methods

getScreenshot - Returns a base64 encoded string of the current webcam image. Example:

class WebcamCapture extends React.Component {
  setRef = (webcam) => {
    this.webcam = webcam;
  }

  capture = () => {
    const imageSrc = this.webcam.getScreenshot();
  };

  render() {
    const videoConstraints = {
      width: 1280,
      height: 720,
      facingMode: 'user',
    };

    return (
      <div>
        <Webcam
          audio={false}
          height={350}
          ref={this.setRef}
          screenshotFormat="image/jpeg"
          width={350}
          videoConstraints={videoConstraints}
        />
        <button onClick={this.capture}>Capture photo</button>
      </div>
    );
  }
}

License

MIT

Credits

Many thanks to @cezary for his work on this component.