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<style>
html, body {
margin: 0!important;
padding: 0!important;
}
video {
width: auto;
max-width: 100%;
}
</style>
<title>Auto Stop RecordRTC on Silence</title>
<h1>Auto Stop RecordRTC on Silence</h1>
<br>
<button id="btn-start-recording">Start Recording</button>
<button id="btn-stop-recording" disabled style="display: none;">Stop Recording</button>
<hr>
<video controls autoplay></video>
<script src="https://cdn.webrtc-experiment.com/RecordRTC.js"></script>
<script src="https://cdn.webrtc-experiment.com/hark.js"></script>
<script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
<script>
var video = document.querySelector('video');
var h1 = document.querySelector('h1');
var default_h1 = h1.innerHTML;
function captureCamera(callback) {
navigator.mediaDevices.getUserMedia({ audio: true, video: true }).then(function(camera) {
callback(camera);
}).catch(function(error) {
alert('Unable to capture your camera. Please check console logs.');
console.error(error);
});
}
function stopRecordingCallback() {
var blob = recorder.getBlob();
video.src = URL.createObjectURL(blob);
video.play();
recorder.camera.stop();
video.muted = false;
}
var recorder; // globally accessible
document.getElementById('btn-start-recording').onclick = function() {
this.disabled = true;
captureCamera(function(camera) {
setSrcObject(camera, video);
video.muted = true;
video.play();
recorder = RecordRTC(camera, {
type: 'video'
});
recorder.startRecording();
var max_seconds = 3;
var stopped_speaking_timeout;
var speechEvents = hark(camera, {});
speechEvents.on('speaking', function() {
if(recorder.getBlob()) return;
clearTimeout(stopped_speaking_timeout);
if(recorder.getState() === 'paused') {
// recorder.resumeRecording();
}
h1.innerHTML = default_h1;
});
speechEvents.on('stopped_speaking', function() {
if(recorder.getBlob()) return;
// recorder.pauseRecording();
stopped_speaking_timeout = setTimeout(function() {
document.getElementById('btn-stop-recording').click();
h1.innerHTML = 'Recording is now stopped.';
}, max_seconds * 1000);
// just for logging purpose (you ca remove below code)
var seconds = max_seconds;
(function looper() {
h1.innerHTML = 'Recording is going to be stopped in ' + seconds + ' seconds.';
seconds--;
if(seconds <= 0) {
h1.innerHTML = default_h1;
return;
}
setTimeout(looper, 1000);
})();
});
// release camera on stopRecording
recorder.camera = camera;
document.getElementById('btn-stop-recording').disabled = false;
});
};
document.getElementById('btn-stop-recording').onclick = function() {
this.disabled = true;
recorder.stopRecording(stopRecordingCallback);
};
</script>
<footer style="margin-top: 20px;"><small id="send-message"></small></footer>
<script src="https://cdn.webrtc-experiment.com/common.js"></script>