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[Gecko Bug 1995644] reuse expensive frame across tests to speed up RTCEncodedFrame-copy-construction.https.html WPT. #58287

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Merged
moz-wptsync-bot merged 1 commit into from
Mar 5, 2026
+7 −3
Merged

[Gecko Bug 1995644] reuse expensive frame across tests to speed up RTCEncodedFrame-copy-construction.https.html WPT. #58287

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10 changes: 7 additions & 3 deletions webrtc-encoded-transform/RTCEncodedFrame-copy-construction.https.html
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,11 @@
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

Expand All @@ -30,6 +33,7 @@

promise_test(async t => {
const frame = await createRTCEncodedFrameFromScratch("audio");
reuse["audio"] = frame;
assert_true(frame instanceof RTCEncodedAudioFrame);

const clone = new RTCEncodedAudioFrame(frame);
Expand All @@ -52,7 +56,7 @@
const kind = constr.includes("Video")? "video" : "audio";

promise_test(async t => {
const frame = await createRTCEncodedFrameFromScratch(kind);
const frame = reuse[kind];
const oldData = frame.getMetadata();
// test single key replacement
for (const key of Object.keys(oldData)) {
Expand All @@ -78,7 +82,7 @@
}, `${constr} copy construction metadata override on main thread.`);

promise_test(async t => {
const frame = await createRTCEncodedFrameFromScratch(kind);
const frame = reuse[kind];
assert_greater_than(frame.data.byteLength, 0);
const length = frame.data.byteLength;
const clone = structuredClone(frame);
Expand All @@ -88,7 +92,7 @@
}, `${constr} structuredClone on main thread.`);

promise_test(async t => {
const frame = await createRTCEncodedFrameFromScratch(kind);
const frame = reuse[kind];
assert_greater_than(frame.data.byteLength, 0);
const length = frame.data.byteLength;
const clone = structuredClone(frame, {transfer: [frame.data]});
Expand Down