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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name='timeout' content='long'>
<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="../webrtc/RTCPeerConnection-helper.js"></script>
<script src="helper.js"></script>
</head>
<body>
<script>
const assert_json_equals = (a, b) => assert_equals(JSON.stringify(a), JSON.stringify(b));
const assert_json_not_equals = (a, b) => assert_not_equals(JSON.stringify(a), JSON.stringify(b));
const reuse = {}; // speed up tests
promise_test(async t => {
const frame = await createRTCEncodedFrameFromScratch("video");
reuse["video"] = frame;
assert_true(frame instanceof RTCEncodedVideoFrame);
assert_equals(frame.type, "key"); // first frame is key
const clone = new RTCEncodedVideoFrame(frame);
assert_true(clone instanceof RTCEncodedVideoFrame);
assert_equals(clone.type, frame.type);
assert_true(areArrayBuffersEqual(clone.data, frame.data));
assert_json_equals(clone.getMetadata(), frame.getMetadata());
}, "RTCEncodedVideoFrame copy construction on main thread.");
promise_test(async t => {
const frame = await createRTCEncodedFrameFromScratch("audio");
reuse["audio"] = frame;
assert_true(frame instanceof RTCEncodedAudioFrame);
const clone = new RTCEncodedAudioFrame(frame);
assert_true(clone instanceof RTCEncodedAudioFrame);
assert_equals(clone.type, frame.type);
assert_true(areArrayBuffersEqual(clone.data, frame.data));
assert_json_equals(clone.getMetadata(), frame.getMetadata());
}, "RTCEncodedAudioFrame copy construction on main thread.");
function different(value) {
switch (typeof value) {
case "number": return value + 1;
case "string": return value + "2";
case "object": return Array.isArray(value) ? value.concat([2]) : {};
default: assert_unreached(`unexpected type ${typeof value}`);
}
}
["RTCEncodedVideoFrame", "RTCEncodedAudioFrame"].forEach(constr => {
const kind = constr.includes("Video")? "video" : "audio";
promise_test(async t => {
const frame = reuse[kind];
const oldData = frame.getMetadata();
// test single key replacement
for (const key of Object.keys(oldData)) {
const metadata = {[key]: different(oldData[key])};
// Spec says "The new frame’s [[metadata]] is a deep copy
// of originalFrame.[[metadata]], with fields replaced with
// deep copies of the fields present in options.[metadata]."
// This compares well to how Object.assign() works
const expected = Object.assign(structuredClone(oldData), metadata);
const clone = new window[constr](frame, {metadata});
assert_json_equals(clone.getMetadata(), expected);
assert_json_not_equals(clone.getMetadata(), oldData);
}
// test cumulative key replacement
let metadata = {};
for (const key of Object.keys(oldData)) {
Object.assign(metadata, {[key]: different(oldData[key])});
const expected = Object.assign(structuredClone(oldData), metadata);
const clone = new window[constr](frame, {metadata});
assert_json_equals(clone.getMetadata(), expected);
assert_json_not_equals(clone.getMetadata(), oldData);
}
}, `${constr} copy construction metadata override on main thread.`);
promise_test(async t => {
const frame = reuse[kind];
assert_greater_than(frame.data.byteLength, 0);
const length = frame.data.byteLength;
const clone = structuredClone(frame);
assert_equals(frame.data.byteLength, length, "not transferred");
assert_true(areArrayBuffersEqual(clone.data, frame.data));
assert_json_equals(clone.getMetadata(), frame.getMetadata());
}, `${constr} structuredClone on main thread.`);
promise_test(async t => {
const frame = reuse[kind];
assert_greater_than(frame.data.byteLength, 0);
const length = frame.data.byteLength;
const clone = structuredClone(frame, {transfer: [frame.data]});
assert_equals(frame.data.byteLength, 0, "was transferred");
assert_equals(clone.data.byteLength, length);
}, `${constr} structuredClone transfer on main thread.`);
});
</script>
</body>
</html>
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