1848811 - [wpt-sync] Sync PR 41472 - Implement MediaStreamTrack.getStats() behind RuntimeEnabledFeatures.

Status: RESOLVED FIXED

(Testing :: web-platform-tests, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 41472 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/41472
Details from upstream follow.

Henrik Boström <[e-mail]> wrote:

Implement MediaStreamTrack.getStats() behind RuntimeEnabledFeatures.

This CL implements the following API behind a test-only flag:
https://w3c.github.io/mediacapture-extensions/#mediastreamtrack-frame-stats

It fully captures the ground work outlined in the extension spec,
however the flag is test-only because this prototype is subject to change
depending on some ongoing spec PRs and because we're currently failing
one of the WPTs added - to be fixed in a follow-up CL.

Once the prototype is matured we'll do an I2S before unflagging.

Bug: chromium:1472978
Change-Id: Ia1156243e1379e9b77da4dd9bd13e8a90b53d196
Reviewed-on: https://chromium-review.googlesource.com/4778470
WPT-Export-Revision: 16ced0d35e6a886e8504e72a6e42ada708515c10

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=dd9c9b657e8dc8eeff742a214ebf1f3cc44f32ec

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 9 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests and 6 subtests

Status Summary

Firefox

OK : 1
FAIL: 6

Chrome

OK : 1
FAIL: 6

Safari

OK : 1
FAIL: 6

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

• /mediacapture-extensions/MediaStreamTrack-getFrameStats.https.html [wpt.fyi]
  • totalFrames increases over time: FAIL (Chrome: FAIL, Safari: FAIL)
  • deliveredFrames increases, even without sinks: FAIL (Chrome: FAIL, Safari: FAIL)
  • discardedFrames increases when frameRate decimation is happening: FAIL (Chrome: FAIL, Safari: FAIL)
  • totalFrames is the sum of deliveredFrames and discardedFrames: FAIL (Chrome: FAIL, Safari: FAIL)
  • Stats are frozen while disabled: FAIL (Chrome: FAIL, Safari: FAIL)
  • getFrameStats throws on audio tracks: FAIL (Chrome: FAIL, Safari: FAIL)

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/63511e74ca63
[wpt PR 41472] - Implement MediaStreamTrack.getFrameStats() behind a test-only flag., a=testonly
https://hg.mozilla.org/integration/autoland/rev/e68bd5126787
[wpt PR 41472] - Update wpt metadata, a=testonly

Comment 4

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/63511e74ca63
https://hg.mozilla.org/mozilla-central/rev/e68bd5126787