WPT
wpt / mediacapture-extensions / MediaStreamTrack-audio-stats.https.html
Spec: Media Capture and Streams Extensions ↗
Runs: Chrome 155.0.8041.0 (wpt@18be93235, 2026-09-04) | Firefox 157.0a1 (wpt@18be93235, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-70fb3 (wpt@0c9001c53, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | 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 | 10/10 | 0/10 | 0/10 | 0/10 | 0/10 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| totalFrames and totalFramesDuration increase over time | PASS | FAIL | FAIL | FAIL | FAIL | — |
| deliveredFrames and deliveredFramesDuration are at most as large as totalFrames and totalFramesDuration | PASS | FAIL | FAIL | FAIL | FAIL | — |
| Latency and averageLatency is within the bounds of minimumLatency and maximumLatency | PASS | FAIL | FAIL | FAIL | FAIL | — |
| Immediately after resetLatency(), latency, averageLatency, minimumLatency and maximumLatency are equal to the most recent latency. | PASS | FAIL | FAIL | FAIL | FAIL | — |
| Stats do not change within the same task execution cycle. | PASS | FAIL | FAIL | FAIL | FAIL | — |
| Stats are frozen while disabled | PASS | FAIL | FAIL | FAIL | FAIL | — |
| SameObject policy applies | PASS | FAIL | FAIL | FAIL | FAIL | — |
| Counters increase even if we don't call the track.stats getter | PASS | FAIL | FAIL | FAIL | FAIL | — |
| Disabling and re-enabling does not reset the counters | PASS | FAIL | FAIL | FAIL | FAIL | — |
| New stats baselines when a track is cloned from an enabled track | PASS | FAIL | FAIL | FAIL | FAIL | — |