Open
Bug 1423991
Opened 7 years ago
Updated 2 years ago
MediaStreamTrack::GetSettings for video return native resolution sometimes
Categories
(Core :: WebRTC: Audio/Video, defect, P2)
Tracking
()
NEW
| Tracking | Status | |
|---|---|---|
| firefox58 | --- | unaffected |
| firefox59 | --- | affected |
People
(Reporter: pehrsons, Unassigned)
References
Details
STR:
Open two tabs in the same content process
Load https://jsfiddle.net/7udgdbbu/10/ in both
Set one to use a lower resolution than the other, make sure that a lower resolution is in effect
In the tab with the lower resolution, click the GetSettings button
Expected:
The logged settings mention the lower resolution
Actual:
The logged settings mention the higher resolution
This is due to how we treat the resolution when downscaling in MediaEngineRemoteVideoSource.
This is a fingerprinting surface.
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Reporter | |
Comment 1•7 years ago
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Bug 1299515 will refactor parts of this class. It might even fix this issue. But let's keep this bug in either case, for adding tests.
Rank: 15
status-firefox58:
--- → unaffected
status-firefox59:
--- → affected
Depends on: 1299515
Priority: -- → P2
This is now returning the empty object { } for WebRTC video streams, rather than any width or height at all.
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Reporter | |
Comment 3•3 years ago
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In Nightly from 2021-08-08 I see Object { deviceId: "VTPMsImGZbhMAzwBkC4Bd7fqv3vVoyW244edFc1imAs=", frameRate: 30, groupId: "GN/5/DgBYOEGrH12vBWFGdR0oD7BYKXd2ymJJS21Oa0=", height: 480, width: 640 } when logging the settings to the console.
But if you have a way to reproduce the empty object for getSettings, please file a new bug with those details.
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Updated•2 years ago
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Severity: normal → S3
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Description
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