react-vision-camera

React Vision Camera

Camera component for React using getUserMedia. We can use this component for computer vision tasks like barcode scanning, text recognition, etc.

Online demo

Installation

npm install react-vision-camera

Usage

import {VisionCamera} from 'react-vision-camera';

function App() {
  const [isActive,setIsActive] = React.useState(true); //whether the camera is active
  const [isPause,setIsPause] = React.useState(false); //whether the video is paused
  const onOpened = (cam:HTMLVideoElement,camLabel:string) => { // You can access the video element in the onOpened event
    console.log("opened"); 
  }

  const onClosed = () => {
    console.log("closed");
  }
  
  const onDeviceListLoaded = (devices:MediaDeviceInfo[]) => {
    console.log(devices);
  }
  
  return (
    <div>
      <VisionCamera 
        isActive={isActive}
        isPause={isPause}
        desiredCamera="back"
        desiredResolution={{width:1280,height:720}}
        onOpened={onOpened}
        onClosed={onClosed}
        onDeviceListLoaded={onDeviceListLoaded}
      >
      </VisionCamera>
    </div>
  )
}

FAQ

How to specify which camera to use?

1. Use the desiredCamera prop. If one of the camera's name contains it, then it will be used. You can get the devices list in the onDeviceListLoaded event.
2. Use the facingMode prop. Set it to environment to use the back camera. Set it to user to use the front camera. Please note that this is not supported on Desktop.

You can use the two props together. facingMode has a higher priority.

License

MIT