change camera (front/wear) about jsqrcode HOT 3 CLOSED

Use MediaStreamTrack.getSources(callback) for getting autio/video sources. Each source has id. This id use in navigator.getUserMedia({audio: false, video: {optional: [{sourceId: id}]}}, success, error)

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I can't explain all the code right now.. but I used constraints, like:

    var constraints = {
        video: {    
            deviceId: videoSource ? {exact: videoSource} : undefined,
            facingMode: "environment"
        }
    };

and then:
navigator.mediaDevices.getUserMedia(constraints).then(gotStream).then(gotDevices).catch(handleError);

good luck, if someone need it.

more info here: https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia

from jsqrcode.

I had to use https://github.com/webrtc/adapter to make everything work great. :)

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