testcafe-examples/detached-examples/mock-camera-microphone-access/index.html at master · DevExpress/testcafe-examples · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Display Webcam Stream</title>
    <style type="text/css">
        #video, #photo {
            display: block;
            min-height: 100px;
            margin: 0 auto;
            background: #333;
            width: 320px;
            height: 240px;
        }

        #audio {
            display: block;
            min-height: 100px;
            margin: 0 auto;
        }

        #photoButton {
            display: block;
            margin: 10px auto 10px auto;
        }

        #canvas {
            display: none;
        }
    </style>
</head>
<body>
    <video autoplay id='video'></video>
    <button id='photoButton'>Take photo</button>
    <canvas id='canvas'></canvas>
    <img id="photo" alt="The photo will appear in this box.">
    <audio id="audio" controls>qwe</audio>
    <script>
        //get elements
        const video  = document.getElementById("video");
        const button = document.getElementById("photoButton");
        const canvas = document.getElementById("canvas");
        const photo  = document.getElementById("photo");
        const audio  = document.getElementById("audio");

        // set dimensions and initialize video stream
        const width  = 320;
        const height = 240;

        video.setAttribute('width', width);
        video.setAttribute('height', height);
        canvas.setAttribute('width', width);
        canvas.setAttribute('height', height);

        navigator.mediaDevices.getUserMedia({ video: true })
            .then(stream => {
                video.srcObject = stream;
            })
            .catch(err => console.log("Error during video stream capture: " + err));

        //add photo button event listener
        //photo is only taken if there is video feed
        button.addEventListener('click', e => {
            if (video.srcObject && video.srcObject.active) {
                takePicture();
                e.preventDefault();
            } else
                console.log("No input stream detected.")
        })

        //draw photo to canvas and then to the `img`
        function takePicture() {
            canvas.getContext('2d').drawImage(video, 0, 0, width, height);
            photo.setAttribute('src', canvas.toDataURL('image/png'));
        }

        // request audio permission and assign to <audio> element
        navigator.mediaDevices.getUserMedia({ audio: true })
            .then(stream => {
                audio.srcObject = stream;
            })
            .catch(err => console.log("Error during audio stream capture: " + err))
    </script>
</body>
</html>