WPT
wpt / webrtc-encoded-transform / script-metadata-transform.https.html
Spec: WebRTC Encoded Transform ↗
Runs: Chrome 155.0.8039.0 (wpt@a4fcd77aa, 2026-09-03) | Firefox 157.0a1 (wpt@cc4d45aa0, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-a9df8 (wpt@47d833bbc, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 24/25 | 20/25 | 17/25 | 0/25 | 0/25 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| audio metadata: synchronizationSource | PASS | PASS | PASS | FAIL | FAIL | — |
| audio metadata: payloadType | PASS | PASS | PASS | FAIL | FAIL | — |
| audio metadata: contributingSources | PASS | PASS | PASS | FAIL | FAIL | — |
| audio metadata: rtpTimestamp | PASS | PASS | PASS | FAIL | FAIL | — |
| audio metadata: receiveTime | PASS | PASS | FAIL | FAIL | FAIL | — |
| audio metadata: captureTime | PASS | FAIL | FAIL | FAIL | FAIL | — |
| audio metadata: senderCaptureTimeOffset | PASS | FAIL | FAIL | FAIL | FAIL | — |
| audio metadata: mimeType | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: synchronizationSource | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: payloadType | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: contributingSources | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: rtpTimestamp | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: receiveTime | PASS | PASS | FAIL | FAIL | FAIL | — |
| video metadata: captureTime | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| video metadata: senderCaptureTimeOffset | PASS | FAIL | FAIL | FAIL | FAIL | — |
| video metadata: mimeType | PASS | PASS | PASS | FAIL | FAIL | — |
| audio metadata: sequenceNumber | PASS | PASS | PASS | FAIL | FAIL | — |
| audio metadata: audioLevel | PASS | PASS | FAIL | FAIL | FAIL | — |
| video metadata: frameId | PASS | FAIL | FAIL | FAIL | FAIL | — |
| video metadata: dependencies | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: width and height | PASS | PASS | PASS | FAIL | FAIL | — |
| video metadata: spatial and temporal index | PASS | PASS | PASS | FAIL | FAIL | — |
| video frame: type | PASS | PASS | PASS | FAIL | FAIL | — |
| audio frame: timestamp (renamed to metadata.rtpTimestamp | PASS | PASS | PASS | FAIL | FAIL | — |
| video frame: timestamp (renamed to metadata.rtpTimestamp | PASS | PASS | PASS | FAIL | FAIL | — |