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<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection Simulcast Tests - setParameters/active</title>
<meta name="timeout" content="long">
<script src="../third_party/sdp/sdp.js"></script>
<script src="simulcast.js"></script>
<script src="../RTCPeerConnection-helper.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="../../mediacapture-streams/permission-helper.js"></script>
<script>
async function queryReceiverStats(pc) {
const inboundStats = [];
await Promise.all(pc.getReceivers().map(async receiver => {
const receiverStats = await receiver.getStats();
receiverStats.forEach(stat => {
if (stat.type === 'inbound-rtp') {
inboundStats.push(stat);
}
});
}));
return inboundStats.map(s => s.framesDecoded);
}
promise_test(async t => {
const rids = [0, 1];
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
await negotiateSimulcastAndWaitForVideo(t, rids, pc1, pc2);
// Deactivate first sender.
const parameters = pc1.getSenders()[0].getParameters();
parameters.encodings[0].active = false;
await pc1.getSenders()[0].setParameters(parameters);
// Assert (almost) no new frames are received on the first encoding.
// Without any action we would expect to have received around 30fps.
await new Promise(resolve => t.step_timeout(resolve, 200)); // Wait a bit.
const initialStats = await queryReceiverStats(pc2);
await new Promise(resolve => t.step_timeout(resolve, 1000)); // Wait more.
const subsequentStats = await queryReceiverStats(pc2);
assert_equals(subsequentStats[0], initialStats[0]);
assert_greater_than(subsequentStats[1], initialStats[1]);
}, 'Simulcast setParameters active=false on first encoding stops sending frames for that encoding');
promise_test(async t => {
const rids = [0, 1];
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
await negotiateSimulcastAndWaitForVideo(t, rids, pc1, pc2);
// Deactivate second sender.
const parameters = pc1.getSenders()[0].getParameters();
parameters.encodings[1].active = false;
await pc1.getSenders()[0].setParameters(parameters);
// Assert (almost) no new frames are received on the second encoding.
// Without any action we would expect to have received around 30fps.
await new Promise(resolve => t.step_timeout(resolve, 200)); // Wait a bit.
const initialStats = await queryReceiverStats(pc2);
await new Promise(resolve => t.step_timeout(resolve, 1000)); // Wait more.
const subsequentStats = await queryReceiverStats(pc2);
assert_equals(subsequentStats[1], initialStats[1]);
assert_greater_than(subsequentStats[0], initialStats[0]);
}, 'Simulcast setParameters active=false on second encoding stops sending frames for that encoding');
promise_test(async t => {
const rids = [0, 1];
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
await negotiateSimulcastAndWaitForVideo(t, rids, pc1, pc2);
// Deactivate all senders.
const parameters = pc1.getSenders()[0].getParameters();
parameters.encodings.forEach(e => {
e.active = false;
});
await pc1.getSenders()[0].setParameters(parameters);
// Assert (almost) no new frames are received.
// Without any action we would expect to have received around 30fps.
await new Promise(resolve => t.step_timeout(resolve, 200)); // Wait a bit.
const initialStats = await queryReceiverStats(pc2);
await new Promise(resolve => t.step_timeout(resolve, 1000)); // Wait more.
const subsequentStats = await queryReceiverStats(pc2);
subsequentStats.forEach((framesDecoded, idx) => {
assert_equals(framesDecoded, initialStats[idx]);
});
}, 'Simulcast setParameters active=false stops sending frames');
</script>
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