1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
<script type="application/javascript" src="mediaStreamPlayback.js"></script>
<script type="application/javascript" src="head.js"></script>
</head>
<body>
<pre id="test">
<script>
createHTML({
bug: "1259788",
title: "Test CaptureStream video content on HTMLMediaElement playing a gUM MediaStream",
visible: true
});
var gUMVideoElement;
var captureStreamElement;
// We check a pixel somewhere away from the top left corner since
// MediaEngineDefault puts semi-transparent time indicators there.
const offsetX = 20;
const offsetY = 20;
const threshold = 16;
const pausedTimeout = 1000;
const h = new CaptureStreamTestHelper2D(50, 50);
var checkHasFrame = video => h.waitForPixel(video, offsetX, offsetY, px => {
let result = h.isOpaquePixelNot(px, h.black, threshold);
info("Checking that we have a frame, got [" +
Array.slice(px) + "]. Pass=" + result);
return result;
});
var checkVideoPlaying = video => checkHasFrame(video)
.then(() => {
let startPixel = { data: h.getPixel(video, offsetX, offsetY)
, name: "startcolor"
};
return h.waitForPixel(video, offsetX, offsetY, px => {
let result = h.isPixelNot(px, startPixel, threshold)
info("Checking playing, [" + Array.slice(px) + "] vs [" +
Array.slice(startPixel.data) + "]. Pass=" + result);
return result;
});
});
var checkVideoPaused = video => checkHasFrame(video)
.then(() => {
let startPixel = { data: h.getPixel(video, offsetX, offsetY)
, name: "startcolor"
};
return h.waitForPixel(video, offsetX, offsetY, px => {
let result = h.isOpaquePixelNot(px, startPixel, threshold);
info("Checking paused, [" + Array.slice(px) + "] vs [" +
Array.slice(startPixel.data) + "]. Pass=" + result);
return result;
}, pausedTimeout);
}).then(result => ok(!result, "Frame shouldn't change within " + pausedTimeout / 1000 + " seconds."));
runTest(() => getUserMedia({video: true, fake: true})
.then(stream => {
gUMVideoElement =
createMediaElement("video", "gUMVideo");
gUMVideoElement.srcObject = stream;
gUMVideoElement.play();
info("Capturing");
captureStreamElement =
createMediaElement("video", "captureStream");
captureStreamElement.srcObject = gUMVideoElement.mozCaptureStream();
captureStreamElement.play();
// Adding a dummy audio track to the stream will keep a consuming media
// element from ending.
// We could also solve it by repeatedly play()ing or autoplay, but then we
// wouldn't be sure the media element stopped rendering video because it
// went to the ended state or because there were no frames for the track.
let osc = createOscillatorStream(new AudioContext(), 1000);
captureStreamElement.srcObject.addTrack(osc.getTracks()[0]);
return checkVideoPlaying(captureStreamElement);
})
.then(() => {
info("Video flowing. Pausing.");
gUMVideoElement.pause();
return checkVideoPaused(captureStreamElement);
})
.then(() => {
info("Video stopped flowing. Playing.");
gUMVideoElement.play();
return checkVideoPlaying(captureStreamElement);
})
.then(() => {
info("Video flowing. Removing source.");
var stream = gUMVideoElement.srcObject;
gUMVideoElement.srcObject = null;
return checkVideoPaused(captureStreamElement).then(() => stream);
})
.then(stream => {
info("Video stopped flowing. Setting source.");
gUMVideoElement.srcObject = stream;
return checkVideoPlaying(captureStreamElement);
})
.then(() => {
info("Video flowing. Changing source by track manipulation. Remove first.");
var track = gUMVideoElement.srcObject.getTracks()[0];
gUMVideoElement.srcObject.removeTrack(track);
return checkVideoPaused(captureStreamElement).then(() => track);
})
.then(track => {
info("Video paused. Changing source by track manipulation. Add first.");
gUMVideoElement.srcObject.addTrack(track);
gUMVideoElement.play();
return checkVideoPlaying(captureStreamElement);
})
.then(() => {
gUMVideoElement.srcObject.getTracks().forEach(t => t.stop());
ok(true, "Test passed.");
})
.catch(e => ok(false, "Test failed: " + e + (e.stack ? "\n" + e.stack : ""))));
</script>
</pre>
</body>
</html>
|
