<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>HTMLCanvasElement capture into MediaStream demo</title>
</head>
<body>
<div> Create Real-Time stream from < canvas > and play it back.</div>
</body>
<div style="background-color: pink">
<canvas id="c" width="480" height="270"></canvas>
</div>
</br>
<button id="btn1" onclick="startStreaming()">Create Stream from < canvas ></button>
<script type="text/javascript" src="dimsum.js"></script>
<script type="text/javascript" src="example1.js"></script>
<script>
var theStream;
var thePlayback;
function startStreaming() {
document.getElementById("btn1").disabled = true;
// Create a MediaStream out of the <canvas> tag.
theStream = document.getElementById("c").captureStream();
document.body.appendChild(document.createElement("br"));
createButton("btn2", "Play back captured Stream to a <video>", startPlayback);
document.body.appendChild(document.createElement("br"));
}
function startPlayback() {
document.getElementById("btn2").disabled = true;
// And plug the created MediaStream into another <video> tag.
createVideoTag("playbackTag", 480, 270, theStream);
thePlayback = document.getElementById("playbackTag");
document.body.appendChild(document.createElement("br"));
createButton("btn3", "Stop theStream captured from <canvas>", stopStreaming);
}
function stopStreaming() {
document.getElementById("btn3").disabled = true;
theStream.getVideoTracks()[0].stop();
}
</script>
</html>