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<style>
html, body {
margin: 0!important;
padding: 0!important;
text-align: center;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
font-size: 1em;
}
video {
width: 30%;
border-radius: 5px;
border: 1px solid black;
}
</style>
<title>Screen Recording | RecordRTC</title>
<h1>Screen Recording using RecordRTC</h1>
<br>
<button id="btn-start-recording">Start Recording</button>
<button id="btn-stop-recording" disabled>Stop Recording</button>
<hr>
<video controls autoplay playsinline></video>
<script src="https://cdn.webrtc-experiment.com/RecordRTC.js"></script>
<script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
<script>
var video = document.querySelector('video');
if(!navigator.getDisplayMedia && !navigator.mediaDevices.getDisplayMedia) {
var error = 'Your browser does NOT supports getDisplayMedia API.';
document.querySelector('h1').innerHTML = error;
document.querySelector('video').style.display = 'none';
document.getElementById('btn-start-recording').style.display = 'none';
document.getElementById('btn-stop-recording').style.display = 'none';
throw new Error(error);
}
function invokeGetDisplayMedia(success, error) {
var displaymediastreamconstraints = {
video: {
displaySurface: 'monitor', // monitor, window, application, browser
logicalSurface: true,
cursor: 'always' // never, always, motion
}
};
// above constraints are NOT supported YET
// that's why overridnig them
displaymediastreamconstraints = {
video: true
};
if(navigator.mediaDevices.getDisplayMedia) {
navigator.mediaDevices.getDisplayMedia(displaymediastreamconstraints).then(success).catch(error);
}
else {
navigator.getDisplayMedia(displaymediastreamconstraints).then(success).catch(error);
}
}
function captureScreen(callback) {
invokeGetDisplayMedia(function(screen) {
addStreamStopListener(screen, function() {
document.getElementById('btn-stop-recording').click();
});
callback(screen);
}, function(error) {
console.error(error);
alert('Unable to capture your screen. Please check console logs.\n' + error);
});
}
function stopRecordingCallback() {
video.src = video.srcObject = null;
video.src = URL.createObjectURL(recorder.getBlob());
recorder.screen.stop();
recorder.destroy();
recorder = null;
document.getElementById('btn-start-recording').disabled = false;
}
var recorder; // globally accessible
document.getElementById('btn-start-recording').onclick = function() {
this.disabled = true;
captureScreen(function(screen) {
video.srcObject = screen;
recorder = RecordRTC(screen, {
type: 'video'
});
recorder.startRecording();
// release screen on stopRecording
recorder.screen = screen;
document.getElementById('btn-stop-recording').disabled = false;
});
};
document.getElementById('btn-stop-recording').onclick = function() {
this.disabled = true;
recorder.stopRecording(stopRecordingCallback);
};
function addStreamStopListener(stream, callback) {
stream.addEventListener('ended', function() {
callback();
callback = function() {};
}, false);
stream.addEventListener('inactive', function() {
callback();
callback = function() {};
}, false);
stream.getTracks().forEach(function(track) {
track.addEventListener('ended', function() {
callback();
callback = function() {};
}, false);
track.addEventListener('inactive', function() {
callback();
callback = function() {};
}, false);
});
}
</script>
<br><br>
<footer style="margin-top: 20px; text-align: left;">
<p style="padding: 5px 10px;"><b>Hints:</b> Are you using Chrome version 71? Please enable "chrome://flags/#enable-experimental-web-platform-features"</p>
<p style="padding: 5px 10px;"><b>Browser support:</b> Firefox, Edge and Chrome &gt= 71</p>
<div><small id="send-message"></small></div>
</footer>
<script src="https://cdn.webrtc-experiment.com/common.js"></script>