Closed Bug 1678556 Opened 3 years ago Closed 3 years ago

Some videos are not correctly rendered on Reddit

Categories

(Core :: Audio/Video: Playback, defect, P3)

Desktop
Windows 7
defect

Tracking

()

RESOLVED WORKSFORME
Tracking Status
firefox84 --- fixed
firefox85 --- fixed

People

(Reporter: csasca, Unassigned)

References

(Regression)

Details

(Keywords: regression)

Attachments

(1 file)

Attached file about support.txt

Affected versions

  • Firefox 84.0b3
  • Firefox 85.0a1

Affected platforms

  • Windows 7

Steps to reproduce

  1. Launch Firefox
  2. Access Reddit videos page
  3. Play some videos

Expected result

  • All the videos are correctly rendered

Actual result

  • Some videos are not rendered and just display color shades or a green screen

Regression range

  • Will see for a regression.

Additional notes

  • The issue can be seen in the following attachment.
  • About:support information is attached too.
  • This is happening on a Windows 7 system with a Intel HD 3000 graphics
  • Tried on a macOS 11 system and this was not reproducible.

Suggested severity

  • S2
Has Regression Range: --- → no
Has STR: --- → yes

It would be helpful to know whether this is a recent regression. Can you use the mozregression tool to narrow it down?

Severity: -- → S3
Flags: needinfo?(catalin.sasca)
Priority: -- → P3
QA Whiteboard: [qa-regression-triage]

Hey Jon, this is what mozregression got me to, hope it helps:

Log:
2020-11-24T11:11:00.224000: DEBUG : Found commit message:
Bug 1659015 - P4. Backport AVIF dav1d colorspace changes to DAV1DDecoder. r=jbauman

This adds YUV444 Identity (RGB) support.

Depends on D87169

Differential Revision: https://phabricator.services.mozilla.com/D87170

2020-11-24T11:11:00.224000: DEBUG : Did not find a branch, checking all integration branches
2020-11-24T11:11:00.224000: INFO : The bisection is done.
2020-11-24T11:11:00.224000: INFO : Stopped

Links
app_name: firefox
build_date: 2020-08-17 23:07:55.037000
build_type: integration
build_url: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/B5YxiVU6S_aPipK2n-lraw/runs/0/artifacts/public%2Fbuild%2Ftarget.zip
changeset: ed9c0db48e518e144ea8134ee500cc0dcea62433
pushlog_url: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=ed9c0db48e518e144ea8134ee500cc0dcea62433&tochange=aa98a6ece5fbbe2b09796d543fa91db5735a44a9
repo_name: autoland
repo_url: https://hg.mozilla.org/integration/autoland
task_id: B5YxiVU6S_aPipK2n-lraw

Flags: needinfo?(catalin.sasca)
Assignee: nobody → jyavenard

Is this issue only occurring on Windows 7? what about 8 and 10?

Flags: needinfo?(catalin.sasca)

Hey Jean, just looked over win 8.1 and 10 and they both are affected by this. Did looked over Firefox 84.0b4.

Flags: needinfo?(catalin.sasca)

I can't reproduce in current nightly.

Seems the same as bug 1679700, particularly because the regression mentioned is about adding the identity colorspace that was added to the shader.
That it happens on Windows is puzzling however, so this wouldn't be restricted to macOS?

Assignee: jyavenard → nobody
Flags: needinfo?(mstange.moz)

Please provide a link to an actual video playing up.

Flags: needinfo?(catalin.sasca)

In the about:support attachment it says "Compositing: WebRender". Catalin, can you check if this happens when WebRender is turned off, too?

(In reply to Jean-Yves Avenard [:jya] from comment #5)

Seems the same as bug 1679700, particularly because the regression mentioned is about adding the identity colorspace that was added to the shader.
That it happens on Windows is puzzling however, so this wouldn't be restricted to macOS?

It sounds like a similar bug, but it has a very different regression range. Driver bugs come in all shapes and sizes...

Flags: needinfo?(mstange.moz)

Sure Jean, this is an actual video that was affected.

Though it seems something got fixed in the meantime and 84.0b7 is no more affected, nor 85.0a1 (2020-12-02), while on 84.0b4 it's still happening.

Flags: needinfo?(catalin.sasca)

Sounds like it may have fixed by bug 1678924, then.

Status: NEW → RESOLVED
Has Regression Range: no → yes
Closed: 3 years ago
Regressed by: 1659015
Resolution: --- → WORKSFORME
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