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
|
<!doctype html>
<meta charset=utf-8>
<meta name="timeout" content="long">
<title>RTCRtpSender.prototype.setParameters for generating keyFrames</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="RTCPeerConnection-helper.js"></script>
<script src="third_party/sdp/sdp.js"></script>
<script src="simulcast/simulcast.js"></script>
<script>
'use strict';
// https://w3c.github.io/webrtc-extensions/#rtcrtpsender-setparameters-keyframe
async function waitForKeyFrameCount(t, pc, spatialLayer, minimumKeyFrames) {
// return after 5 seconds.
const startTime = performance.now();
while (true) {
const report = await pc.getStats();
const stats = [...report.values()].find(({type, rid}) => type === 'outbound-rtp' && rid === spatialLayer);
if (stats && stats.keyFramesEncoded >= minimumKeyFrames) {
return stats;
}
await new Promise(r => t.step_timeout(r, 100));
if (performance.now() > startTime + 5000) {
break;
}
}
}
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
// Video must be small enough to reach a key frame of the right size immediately.
const stream = await getNoiseStream({video: {width: 320, height: 160}});
t.add_cleanup(() => stream.getTracks().forEach(t => t.stop()));
const sender = pc1.addTrack(stream.getTracks()[0], stream);
exchangeIceCandidates(pc1, pc2);
await exchangeOfferAnswer(pc1, pc2);
const rid = undefined;
const first_stats = await waitForKeyFrameCount(t, pc1, rid, 1);
assert_true(!!first_stats);
sender.setParameters(sender.getParameters(), {
encodingOptions: [{keyFrame: true}],
});
const second_stats = await waitForKeyFrameCount(t, pc1, rid, first_stats.keyFramesEncoded + 1);
assert_true(!!second_stats);
assert_greater_than(second_stats.keyFramesEncoded, first_stats.keyFramesEncoded);
}, `setParameters() second argument can be used to trigger keyFrame generation`);
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
// Video must be small enough to reach a key frame of the right size immediately.
const stream = await getNoiseStream({video: {width: 640, height: 360}});
t.add_cleanup(() => stream.getTracks().forEach(t => t.stop()));
const rids = ['0', '1'];
const {sender} = pc1.addTransceiver(stream.getTracks()[0], {
streams: [stream],
sendEncodings: [{rid: 0}, {rid: 1}],
});
exchangeIceCandidates(pc1, pc2);
await pc1.setLocalDescription();
await pc2.setRemoteDescription({type: 'offer', sdp: ridToMid(pc1.localDescription, rids)});
await pc2.setLocalDescription();
await pc1.setRemoteDescription({type: 'answer', sdp: midToRid(
pc2.localDescription,
pc1.localDescription,
rids
)});
const first_stats_l0 = await waitForKeyFrameCount(t, pc1, '0', 1);
assert_true(!!first_stats_l0);
const first_stats_l1 = await waitForKeyFrameCount(t, pc1, '1', 1);
assert_true(!!first_stats_l1);
// Generate a keyframe on the second layer. This may, depending on the encoder, force
// a key frame on the first layer as well.
sender.setParameters(sender.getParameters(), {
encodingOptions: [{keyFrame: false}, {keyFrame: true}],
});
const second_stats_l1 = await waitForKeyFrameCount(t, pc1, '1', first_stats_l1.keyFramesEncoded + 1);
assert_true(!!second_stats_l1);
assert_greater_than(second_stats_l1.keyFramesEncoded, first_stats_l1.keyFramesEncoded);
const second_stats_l0 = await waitForKeyFrameCount(t, pc1, '0', first_stats_l0.keyFramesEncoded);
assert_true(!!second_stats_l0);
assert_greater_than_equal(second_stats_l0.keyFramesEncoded, first_stats_l0.keyFramesEncoded);
}, `setParameters() second argument can be used to trigger keyFrame generation (simulcast)`);
</script>
|
