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Test Info:
<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="pc.js"></script>
<script type="application/javascript" src="parser_rtp.js"></script>
<script type="application/javascript" src="sdpUtils.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
bug: "1416932",
title: "Basic video-only peer connection and verify rtp header extensions"
});
var test;
runNetworkTest(function (options) {
test = new PeerConnectionTest(options);
test.setMediaConstraints([{video: true}], [{video: true}]);
let getRtpPacketWithExtension = (pc, extension) => {
// we only examine received packets
let sending = false;
pc.mozEnablePacketDump(0, "rtp", sending);
return new Promise((res, rej) =>
pc.mozSetPacketCallback((...args) => {
const packet = ParseRtpPacket(args[3]);
info(`midId = ${extension} packet = ${JSON.stringify(packet, null, 2)}`);
if (packet.header.extensions.find(e => e.id == extension) !== undefined) {
res(packet);
pc.mozSetPacketCallback(() => {});
pc.mozDisablePacketDump(0, "rtp", sending);
}
})
);
}
let havePacketWithMid;
let sdpExtmaps;
// MID can stop being sent when acked causing failures if packets are checked later.
// Starting packet sniffer before PC_LOCAL_SET_REMOTE_DESCRIPTION to be ready
// to inspect packets ahead of any packets arriving.
test.chain.insertBefore('PC_LOCAL_SET_REMOTE_DESCRIPTION', [
function PC_REMOTE_FIND_RTP_PACKETS_WITH_MIDID() {
sdpExtmaps = sdputils.findExtmapIdsUrnsDirections(test.originalAnswer.sdp);
const [midId] = sdpExtmaps.find(([, urn]) => urn == "urn:ietf:params:rtp-hdrext:sdes:mid");
const pc = SpecialPowers.wrap(test.pcRemote._pc);
havePacketWithMid = getRtpPacketWithExtension(pc, midId);
}
]);
test.chain.insertBefore('PC_REMOTE_WAIT_FOR_MEDIA_FLOW', [
async function PC_REMOTE_CHECK_RTP_HEADER_EXTS_AGAINST_SDP() {
const sdpExtmapIds = sdpExtmaps.map(e => e[0]);
const packet = await havePacketWithMid;
const extIds = packet.header.extensions.map(e => `${e.id}`);
// make sure we got the same number of rtp header extensions in
// the received packet as were negotiated in the sdp. Then
// check to make sure each of the received extension ids were in
// the sdp.
is(sdpExtmapIds.length, extIds.length,
`number of sdp ids match received ids ` +
`${JSON.stringify(sdpExtmapIds)} == ${JSON.stringify(extIds)}\n` +
`sdp = ${test.originalAnswer.sdp}\n` +
`packet = ${JSON.stringify(packet, null, 2)}`);
// note, we are comparing a number (from the parsed rtp packet)
// and a string (from the answer sdp)
ok(extIds.every(id => sdpExtmapIds.includes(id)) &&
sdpExtmapIds.every(id => extIds.includes(id)),
`extension id arrays equivalent`);
}
]);
return test.run();
});
</script>
</pre>
</body>
</html>