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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webrtc-encoded-transform/tentative/RTCEncodedAudioFrame-audiolevel.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset=utf-8>
<title>Audio Level in RTCEncodedAudioFrameMetadata</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 doWorkExpectingAudioLevel() {
onrtctransform = async e => {
const reader = e.transformer.readable.getReader();
const writer = e.transformer.writable.getWriter();
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 === undefined) {
self.postMessage("No audioLevel ");
return;
}
if (metadata.audioLevel < 0 || metadata.audioLevel > 1) {
self.postMessage("Invalid audioLevel value");
return;
}
if (metadata.senderCaptureTimeOffset != 0) {
await writer.write(frameOrDone.value);
}
}
self.postMessage("OK");
};
}
promise_test(async t => {
const worker = new Worker(`data:text/javascript,(${doWorkExpectingAudioLevel.toString()})()`);
const workerPromise = new Promise((resolve, reject) => {
worker.onmessage = t.step_func(message => {
if (message.data == "OK") {
resolve();
} else {
reject(message.data);
}
});
});
await initiateCall(
t, /*streamOptions=*/{audio: true, video: false},
/*enableAbsCaptureTime=*/false, worker, /*enableSenderTransform=*/false,
/*enableReceiverTransform=*/true);
return workerPromise;
}, 'audioLevel present in audio receiver');
promise_test(async t => {
const worker = new Worker(`data:text/javascript,(${doWorkExpectingAudioLevel.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=*/true,
/*enableReceiverTransform=*/false);
return workerPromise;
}, 'audioLevel present in audio sender');
</script>