Can not share chrome's screen in some windows OS

NEW
Unassigned

Status

()

Core
WebRTC: Audio/Video
P3
normal
Rank:
27
a month ago
a month ago

People

(Reporter: xpeng, Unassigned)

Tracking

55 Branch
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Reporter)

Description

a month ago
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Build ID: 20170824053622

Steps to reproduce:

1. open chrome browser 
2. use the demo  :https://www.webrtc-experiment.com/getScreenId/  to click the button "capture your own screen".
3. select the chrome window to share



Actual results:

the chrome 's previewing window is black , and the sharing result is black too.
we can reproduce the issue in some PC (some windows 10 but some windows 10 not)


Expected results:

share chrome's window normally .

Updated

a month ago
Component: Untriaged → WebRTC
Product: Firefox → Core

Comment 1

a month ago
Confirmed with the link supplied and https://mozilla.github.io/webrtc-landing/gum_test.html using Windows 8.1 in a VM. Works as expected in Ubuntu 17.04 and OS X.
Status: UNCONFIRMED → NEW
Rank: 17
Component: WebRTC → WebRTC: Audio/Video
Ever confirmed: true
Priority: -- → P1
Windows 10 (and windows 8 IIRC) have drawing modes for windows that make the "normal" content-scraping that window capture fail.  I think full screen capture should work in this case.  We try to remove windows that aren't capturable, but this may not be something we can determine for Chrome; I'm not sure.

Microsoft is working on a capture API that will solve this problem IIRC (Edge has the same issue capturing some windows I believe)
Mass change P1->P2 to align with new Mozilla triage process
Priority: P1 → P2

Comment 4

a month ago
(In reply to Randell Jesup [:jesup] from comment #2)
> Windows 10 (and windows 8 IIRC) have drawing modes for windows that make the
> "normal" content-scraping that window capture fail.  I think full screen
> capture should work in this case.  We try to remove windows that aren't
> capturable, but this may not be something we can determine for Chrome; I'm
> not sure.
> 
> Microsoft is working on a capture API that will solve this problem IIRC
> (Edge has the same issue capturing some windows I believe)

Yes, I tested full screen capture and it worked properly.

I'm dropping the priority as this doesn't seem like something we'll be able to fix
in the short term.
Rank: 17 → 27
Priority: P2 → P3
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