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<script>window.demoVersion = '2017.08.31';</script>
<!--
> Muaz Khan - https://github.com/muaz-khan
> MIT License - https://www.webrtc-experiment.com/licence/
> Documentation - https://github.com/streamproc/MediaStreamRecorder
> =================================================================
> gif-recorder.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>WebRTC Gif Recording using MediaStreamRecorder</title>
<script src="https://cdn.WebRTC-Experiment.com/MediaStreamRecorder.js"></script>
<script src="https://cdn.webrtc-experiment.com/gif-recorder.js"></script>
<script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
<link rel="stylesheet" href="https://cdn.webrtc-experiment.com/style.css">
<style>
input {
border: 1px solid rgb(46, 189, 235);
border-radius: 3px;
font-size: 1em;
outline: none;
padding: .2em .4em;
width: 60px;
text-align: center;
}
</style>
</head>
<body>
<article>
<header style="text-align: center;">
<h1>
<a href="https://www.webrtc-experiment.com/">WebRTC</a> Gif Recording using <a href="https://github.com/streamproc/MediaStreamRecorder" target="_blank">MediaStreamRecorder</a>
</h1>
<p>
<a href="https://www.webrtc-experiment.com/msr/">HOME</a>
<span> &copy; </span>
<a href="http://www.MuazKhan.com/" target="_blank">Muaz Khan</a> .
<a href="http://twitter.com/WebRTCWeb" target="_blank" title="Twitter profile for WebRTC Experiments">@WebRTCWeb</a> .
<a href="https://github.com/muaz-khan?tab=repositories" target="_blank" title="Github Profile">Github</a> .
<a href="https://github.com/streamproc/MediaStreamRecorder/issues?state=open" target="_blank">Latest issues</a> .
<a href="https://github.com/streamproc/MediaStreamRecorder/commits/master" target="_blank">What's New?</a>
</p>
</header>
<div class="github-stargazers"></div>
<section style="text-align: center; margin-top: 15px; color: red; font-family: Courier New; font-weight: bold;" id="demoVersion"></section>
<script>document.getElementById('demoVersion').innerHTML = 'Last Updated On: <time>' + new Date(window.demoVersion).toDateString() + '</time>';</script>
<section class="experiment" style="padding: 5px;">
<label for="time-interval">Time Interval (milliseconds):</label>
<input type="text" id="time-interval" value="5000">
<button id="start-recording">Start</button>
<button id="stop-recording" disabled>Stop</button>
<button id="pause-recording" disabled>Pause</button>
<button id="resume-recording" disabled>Resume</button>
<br>
<br>
<label for="video-width">Video Width:</label>
<input type="text" id="video-width" value="320">
<label for="video-height">Video Height:</label>
<input type="text" id="video-height" value="240">
</section>
<section class="experiment">
<div id="videos-container">
</div>
</section>
<script>
function captureUserMedia(mediaConstraints, successCallback, errorCallback) {
navigator.mediaDevices.getUserMedia(mediaConstraints).then(successCallback).catch(errorCallback);
}
var mediaConstraints = {
video: true
};
document.querySelector('#start-recording').onclick = function() {
this.disabled = true;
captureUserMedia(mediaConstraints, onMediaSuccess, onMediaError);
};
document.querySelector('#stop-recording').onclick = function() {
this.disabled = true;
mediaRecorder.stop();
mediaRecorder.stream.stop();
document.querySelector('#pause-recording').disabled = true;
document.querySelector('#start-recording').disabled = false;
};
document.querySelector('#pause-recording').onclick = function() {
this.disabled = true;
mediaRecorder.pause();
document.querySelector('#resume-recording').disabled = false;
};
document.querySelector('#resume-recording').onclick = function() {
this.disabled = true;
mediaRecorder.resume();
document.querySelector('#pause-recording').disabled = false;
};
var mediaRecorder;
function onMediaSuccess(stream) {
var video = document.createElement('video');
var videoWidth = document.getElementById('video-width').value || 320;
var videoHeight = document.getElementById('video-height').value || 240;
video = mergeProps(video, {
controls: true,
width: videoWidth,
height: videoHeight
});
video.srcObject = stream;
video.play();
videosContainer.appendChild(video);
videosContainer.appendChild(document.createElement('hr'));
mediaRecorder = new MediaStreamRecorder(stream);
mediaRecorder.stream = stream;
mediaRecorder.mimeType = 'image/gif'; // this line is mandatory
mediaRecorder.videoWidth = videoWidth;
mediaRecorder.videoHeight = videoHeight;
mediaRecorder.ondataavailable = function(blob) {
var a = document.createElement('a');
a.target = '_blank';
a.innerHTML = 'Open Recorded GIF No. ' + (index++) + ' (Size: ' + bytesToSize(blob.size) + ') Time Length: ' + getTimeLength(timeInterval);
a.href = URL.createObjectURL(blob);
videosContainer.appendChild(a);
videosContainer.appendChild(document.createElement('hr'));
};
var timeInterval = document.querySelector('#time-interval').value;
if (timeInterval) timeInterval = parseInt(timeInterval);
else timeInterval = 5 * 1000;
// get blob after specific time interval
mediaRecorder.start(timeInterval);
document.querySelector('#stop-recording').disabled = false;
document.querySelector('#pause-recording').disabled = false;
}
function onMediaError(e) {
console.error('media error', e);
}
var videosContainer = document.getElementById('videos-container');
var index = 1;
// below function via: http://goo.gl/B3ae8c
function bytesToSize(bytes) {
var k = 1000;
var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
if (bytes === 0) return '0 Bytes';
var i = parseInt(Math.floor(Math.log(bytes) / Math.log(k)), 10);
return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i];
}
// below function via: http://goo.gl/6QNDcI
function getTimeLength(milliseconds) {
var data = new Date(milliseconds);
return data.getUTCHours() + " hours, " + data.getUTCMinutes() + " minutes and " + data.getUTCSeconds() + " second(s)";
}
window.onbeforeunload = function() {
document.querySelector('#start-recording').disabled = false;
};
</script>
<section class="experiment">
<h2 id="how-to-use">How to use?</h2>
<pre style="border-left: 2px solid red; margin-left:2em; padding-left: 1em;">
// cdn.webrtc-experiment.com/MediaStreamRecorder.js
// cdn.webrtc-experiment.com/gif-recorder.js
var mediaConstraints = {
video: true
};
navigator.getUserMedia(mediaConstraints, onMediaSuccess, onMediaError);
function onMediaSuccess(stream) {
var mediaRecorder = new MediaStreamRecorder(stream);
mediaRecorder.mimeType = 'image/gif';
mediaRecorder.ondataavailable = function (blob) {
// POST/PUT "Blob" using FormData/XHR2
var blobURL = URL.createObjectURL(blob);
document.write('&lt;a href="' + blobURL + '"&gt;' + blobURL + '&lt;/a&gt;');
};
mediaRecorder.start(3000);
}
function onMediaError(e) {
console.error('media error', e);
}
</pre>
</section>
<section class="experiment">
<h2 class="header" id="updates" style="color: red; padding-bottom: .1em;"><a href="https://github.com/streamproc/MediaStreamRecorder/commits/master" target="_blank">Latest Issues</a>
</h2>
<div id="github-issues"></div>
</section>
<section class="experiment">
<h2 class="header" id="updates" style="color: red; padding-bottom: .1em;"><a href="https://github.com/streamproc/MediaStreamRecorder/commits/master" target="_blank">Latest Updates</a>
</h2>
<div id="github-commits"></div>
</section>
<section class="experiment"><small id="send-message"></small></section>
<script>
window.useThisGithubPath = 'streamproc/MediaStreamRecorder';
</script>
<script src="https://cdn.webrtc-experiment.com/commits.js" async></script>
</article>
<a href="https://github.com/streamproc/MediaStreamRecorder" class="fork-left"></a>
<footer>
<p>
<a href="https://www.webrtc-experiment.com/">WebRTC Experiments</a> © <a href="https://plus.google.com/+MuazKhan" rel="author" target="_blank">Muaz Khan</a>
<a href="mailto:muazkh@gmail.com" target="_blank">muazkh@gmail.com</a>
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