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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /webrtc-encoded-transform/tentative/RTCEncodedFrame-timestamps.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset=utf-8>
<title>Timestamps in RTCEncodedFrame metadata</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/webrtc/RTCPeerConnection-helper.js"></script>
<script src="RTCEncodedFrame-timestamps-helper.js"></script>
<script>
'use strict';
function doWorkExpectingCaptureTimestamps() {
onrtctransform = async e => {
const reader = e.transformer.readable.getReader();
const writer = e.transformer.writable.getWriter();
let oldCaptureTime = -1;
let oldReceiveTime = -1;
for (let i = 0; i<10; i++) {
const frameOrDone = await reader.read();
if (frameOrDone.done) {
self.postMessage("Unexpected end of stream");
return;
}
const metadata = frameOrDone.value.getMetadata();
if (metadata.captureTime > metadata.receiveTime ||
metadata.captureTime < 0 ||
metadata.captureTime < oldCaptureTime) {
self.postMessage("Unexpected captureTime");
return;
}
if (metadata.receiveTime > performance.now() ||
metadata.receiveTime < metadata.captureTime ||
metadata.receiveTime < oldReceiveTime) {
self.postMessage("Unexpected receiveTime");
return;
}
if (metadata.senderCaptureTimeOffset != 0) {
self.postMessage("Unexpected senderReceiveTimeOffset");
return;
}
oldCaptureTime = metadata.captureTime;
oldReceiveTime = metadata.receiveTime;
await writer.write(frameOrDone.value);
}
self.postMessage("OK");
};
}
function doWorkExpectingNoCaptureTimestamps() {
onrtctransform = async e => {
const reader = e.transformer.readable.getReader();
const writer = e.transformer.writable.getWriter();
let oldReceiveTime = -1;
for (let i = 0; i<10; i++) {
const frameOrDone = await reader.read();
if (frameOrDone.done) {
self.postMessage("Unexpected end of stream");
return;
}
const metadata = frameOrDone.value.getMetadata();
if ("captureTime" in metadata) {
self.postMessage("Unexpected captureTime");
return;
}
if ("senderCaptureTimeOffset" in metadata) {
self.postMessage("Unexpected senderReceiveTimeOffset");
return;
}
if (metadata.receiveTime > performance.now() ||
metadata.receiveTime < oldReceiveTime) {
self.postMessage("Unexpected receiveTime");
return;
}
oldReceiveTime = metadata.receiveTime;
await writer.write(frameOrDone.value);
}
self.postMessage("OK");
};
}
promise_test(async t => {
const worker = new Worker(`data:text/javascript,(${doWorkExpectingCaptureTimestamps.toString()})()`);
const workerPromise = new Promise((resolve, reject) => {
worker.onmessage = t.step_func(message => {
if (message.data == "OK") {
resolve();
} else {
reject(message.data);
}
});
});
await initiateCall(
t, /*streamOptions=*/{audio: true, video: false},
/*enableAbsCaptureTime=*/true, worker, /*enableSenderTransform=*/false,
/*enableReceiverTransform=*/true);
return workerPromise;
}, 'captureTime and senderCaptureTimeOffset present in audio receiver if extension is used');
promise_test(async t => {
const worker = new Worker(`data:text/javascript,(${doWorkExpectingNoCaptureTimestamps.toString()})()`);
const workerPromise = new Promise((resolve, reject) => {
worker.onmessage = t.step_func(message => {
if (message.data == "OK") {
resolve();
} else {
reject(message.data);
}
});
});
await initiateCall(
t, /*streamOptions=*/{audio: true, video: false},
/*enableAbsCaptureTime=*/false, worker, /*enableSenderTransform=*/false,
/*enableReceiverTransform=*/true);
return workerPromise;
}, 'captureTime and senderCaptureTimeOffset not present in audio receiver if extension not used');
</script>