WPT
wpt / webrtc / RTCRtpReceiver-getSynchronizationSources.https.html
Spec: WebRTC ↗
Runs: Chrome 155.0.8041.0 (wpt@4a01b83e3, 2026-09-04) | Firefox 157.0a1 (wpt@4a01b83e3, 2026-09-04) | Safari 251 preview (wpt@a1e944e7a, 2026-09-04) | Ladybird 1.0-a7825 (wpt@4a01b83e3, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 13/13 | 13/13 | 13/13 | 0/13 | 0/13 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| [audio] getSynchronizationSources() eventually returns a non-empty list | PASS | PASS | PASS | FAIL | FAIL | — |
| [audio] RTCRtpSynchronizationSource.timestamp is a number | PASS | PASS | PASS | FAIL | FAIL | — |
| [audio] RTCRtpSynchronizationSource.rtpTimestamp is a number [0, 2^32-1] | PASS | PASS | PASS | FAIL | FAIL | — |
| [audio] getSynchronizationSources() does not contain SSRCs older than 10 seconds | PASS | PASS | PASS | FAIL | FAIL | — |
| [audio] RTCRtpSynchronizationSource.timestamp is comparable to performance.timeOrigin + performance.now() | PASS | PASS | PASS | FAIL | FAIL | — |
| [audio] RTCRtpSynchronizationSource.source is a number | PASS | PASS | PASS | FAIL | FAIL | — |
| [video] getSynchronizationSources() eventually returns a non-empty list | PASS | PASS | PASS | FAIL | FAIL | — |
| [video] RTCRtpSynchronizationSource.timestamp is a number | PASS | PASS | PASS | FAIL | FAIL | — |
| [video] RTCRtpSynchronizationSource.rtpTimestamp is a number [0, 2^32-1] | PASS | PASS | PASS | FAIL | FAIL | — |
| [video] getSynchronizationSources() does not contain SSRCs older than 10 seconds | PASS | PASS | PASS | FAIL | FAIL | — |
| [video] RTCRtpSynchronizationSource.timestamp is comparable to performance.timeOrigin + performance.now() | PASS | PASS | PASS | FAIL | FAIL | — |
| [video] RTCRtpSynchronizationSource.source is a number | PASS | PASS | PASS | FAIL | FAIL | — |
| [audio-only] RTCRtpSynchronizationSource.audioLevel is a number [0, 1] | PASS | PASS | PASS | FAIL | FAIL | — |