1739962 - Google Meet: Screen sharing/Presenting shows "interlaced" (?) video

Status: RESOLVED DUPLICATE of bug 1738946

(Core :: WebRTC, defect)

Description

[Henrik Mitsch [:hmitsch]]

Attachment: 2021-11-08 10.11.06.jpg

Nightly Build: 96.0a1 (2021-11-07) (64-bit) on macOS Monterey

Test Condition

• Open a Google Meet meeting
• Start screen sharing

Expected Result

• Screensharing works

Actual Result

• Screenshot 1: The screen sharing preview shows a weird image. It looks as if it was "interlaced" (?)
• Screenshot 2: The real screen share is then also "interlaced"

Additional Information

Google Meet screen sharing works fine on the Release branch, 95.0b4 (64-bit).

Comment 1

[Henrik Mitsch [:hmitsch]]

Attachment: 2021-11-08 10.11.13.jpg

Comment 2

[Kelsey Gilbert [:jgilbert]]

@jrmuizel wasn't there recently a change about 440 to 420 or similar? Related maybe?

Comment 3

[Jeff Muizelaar [:jrmuizel]]

That change is in 95b4. This was more likely caused by the webrtc update.

Comment 4

[Nico Grunbaum [:ng, @chew:mozilla.org]]

This is a duplicate of 1738628. This bug is not specific to Meet, but screen capture in general, and it is already being investigate.