<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="mediaStreamPlayback.js"></script>
<script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
"use strict";
createHTML({
title: "Testing that removeTrack+addTrack of video tracks still render the correct track in a media element",
bug: "1223696",
visible: true
});
runTest(() => Promise.resolve()
.then(() => getUserMedia({audio:true, video: true})).then(stream => {
info("Test addTrack()ing a video track to an audio-only gUM stream");
var video = createMediaElement("video", "test_video_track");
video.srcObject = stream;
video.play();
var h = new CaptureStreamTestHelper2D();
var removedTrack = stream.getVideoTracks()[0];
stream.removeTrack(removedTrack);
video.onloadeddata = () => {
info("loadeddata");
var canvas = document.createElement("canvas");
canvas.getContext("2d");
var canvasStream = canvas.captureStream();
setInterval(() => h.drawColor(canvas, h.grey), 1000);
stream.addTrack(canvasStream.getVideoTracks()[0]);
checkMediaStreamContains(stream, [stream.getAudioTracks()[0],
canvasStream.getVideoTracks()[0]]);
};
return listenUntil(video, "loadeddata", () => true)
.then(() => h.waitForPixelColor(video, h.grey, 5,
"The canvas track should be rendered by the media element"))
.then(() => {
[removedTrack, ...stream.getAudioTracks()].forEach(t => t.stop());
});
}));
</script>
</pre>
</body>
</html>