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test_peerConnection_simulcastAnswer.html
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test_peerConnection_simulcastAnswer.html
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<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="pc.js"></script>
<script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
bug: "1231507",
title: "Basic video-only peer connection with Simulcast answer",
visible: true
});
function addRIDExtension(pc, extensionId) {
const receivers = pc._pc.getReceivers();
is(receivers.length, 1, "We have exactly one RTP receiver");
const receiver = receivers[0];
SpecialPowers.wrap(pc._pc).mozAddRIDExtension(receiver, extensionId);
}
function selectRecvRID(pc, rid) {
const receivers = pc._pc.getReceivers();
is(receivers.length, 1, "We have exactly one RTP receiver");
const receiver = receivers[0];
SpecialPowers.wrap(pc._pc).mozAddRIDFilter(receiver, rid);
}
runNetworkTest(() =>
pushPrefs(['media.peerconnection.simulcast', true],
// 180Kbps was determined empirically, set well-higher than
// the 80Kbps+overhead needed for the two simulcast streams.
// 100Kbps was apparently too low.
['media.peerconnection.video.min_bitrate_estimate', 180*1000]).then(() => {
let emitter, helper;
test = new PeerConnectionTest({bundle: false});
test.setMediaConstraints([{video: true}], [{video: true}]);
test.chain.replace("PC_REMOTE_GUM", [
function PC_REMOTE_CANVAS_CAPTURESTREAM(test) {
emitter = new VideoFrameEmitter();
helper = new VideoStreamHelper();
test.pcRemote.attachLocalStream(emitter.stream());
emitter.start();
}
]);
test.chain.insertAfter('PC_REMOTE_GET_OFFER', [
function PC_REMOTE_SET_RIDS(test) {
const senders = test.pcRemote._pc.getSenders();
is(senders.length, 1, "We have exactly one RTP sender");
const sender = senders[0];
ok(sender.track, "Sender has a track");
return sender.setParameters({
encodings: [{ rid: "foo", maxBitrate: 40000 },
{ rid: "bar", maxBitrate: 40000, scaleResolutionDownBy: 2 }]
});
},
function PC_LOCAL_ADD_RIDS_TO_OFFER(test) {
// Create a dummy offer, and use it to set simulcast stuff on the
// offer we will actually be using.
return test.createOffer(test.pcRemote).then(offer => {
test._local_offer.sdp = sdputils.transferSimulcastProperties(
offer.sdp, test._local_offer.sdp);
info("Offer with RIDs: " + JSON.stringify(test._local_offer));
ok(test._local_offer.sdp.match(/a=simulcast:/), "Modified offer has simulcast");
ok(test._local_offer.sdp.match(/a=rid:foo/), "Modified offer has rid foo");
ok(test._local_offer.sdp.match(/a=rid:bar/), "Modified offer has rid bar");
ok(test._local_offer.sdp.match(/urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id/), "Modified offer has RID");
});
}
]);
test.chain.insertAfter('PC_LOCAL_GET_ANSWER',[
function PC_LOCAL_REMOVE_SIMULCAST_ATTRS_FROM_ANSWER(test) {
test._remote_answer.sdp =
sdputils.removeSimulcastProperties(test._remote_answer.sdp);
}
]);
// do this after set remote description so the MediaPipeline
// has been created.
test.chain.insertAfter('PC_LOCAL_SET_REMOTE_DESCRIPTION',[
function PC_LOCAL_SET_RTP_FIRST_RID(test) {
const extmap_id = test._local_offer.sdp.match(
"a=extmap:([0-9+])/recvonly urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id");
ok(extmap_id, "Local offer has extmap id for simulcast: " + extmap_id[1]);
// Cause pcLocal to filter out everything but RID "bar", only
// allowing one of the simulcast streams through.
addRIDExtension(test.pcLocal, extmap_id[1]);
selectRecvRID(test.pcLocal, "bar");
}
]);
test.chain.append([
async function PC_LOCAL_WAIT_FOR_FRAMES() {
const vremote = test.pcLocal.remoteMediaElements[0];
ok(vremote, "Should have remote video element for pcLocal");
emitter.start();
await helper.checkVideoPlaying(vremote);
emitter.stop();
},
function PC_LOCAL_CHECK_SIZE_1() {
const vlocal = test.pcRemote.localMediaElements[0];
const vremote = test.pcLocal.remoteMediaElements[0];
ok(vlocal, "Should have local video element for pcRemote");
ok(vremote, "Should have remote video element for pcLocal");
is(vlocal.videoWidth, 50, "correct source width");
is(vlocal.videoHeight, 50, "correct source height");
is(vremote.videoWidth, 24,
"sink is 1/2 width of source, modulo our cropping algorithm");
is(vremote.videoHeight, 24,
"sink is 1/2 height of source, modulo our cropping algorithm");
},
function PC_LOCAL_SET_RTP_SECOND_RID(test) {
// Now, cause pcLocal to filter out everything but RID "foo", only
// allowing the other simulcast stream through.
selectRecvRID(test.pcLocal, "foo");
},
function PC_LOCAL_WAIT_FOR_SECOND_MEDIA_FLOW(test) {
return test.pcLocal.waitForMediaFlow();
},
async function PC_LOCAL_WAIT_FOR_FRAMES_2() {
const vremote = test.pcLocal.remoteMediaElements[0];
ok(vremote, "Should have remote video element for pcLocal");
emitter.start();
await helper.checkVideoPlaying(vremote);
emitter.stop();
},
// For some reason, even though we're getting a 24x24 stream, sometimes
// the resolution isn't updated on the video element on the first frame.
async function PC_LOCAL_WAIT_FOR_FRAMES_3() {
const vremote = test.pcLocal.remoteMediaElements[0];
ok(vremote, "Should have remote video element for pcLocal");
emitter.start();
await helper.checkVideoPlaying(vremote);
emitter.stop();
},
function PC_LOCAL_CHECK_SIZE_2() {
const vlocal = test.pcRemote.localMediaElements[0];
const vremote = test.pcLocal.remoteMediaElements[0];
ok(vlocal, "Should have local video element for pcRemote");
ok(vremote, "Should have remote video element for pcLocal");
is(vlocal.videoWidth, 50, "correct source width");
is(vlocal.videoHeight, 50, "correct source height");
is(vremote.videoWidth, 48,
"sink is same width as source, modulo our cropping algorithm");
is(vremote.videoHeight, 48,
"sink is same height as source, modulo our cropping algorithm");
},
]);
return test.run();
})
.catch(e => ok(false, "unexpected failure: " + e)));
</script>
</pre>
</body>
</html>