Bug 191244 – Can not get video stream with internal camera of Macbook air in safari 12

• Status: REOPENED
• Component: WebRTC

[xpeng]

demo :
https://webrtc.github.io/samples/src/content/getusermedia/resolution/

Cases:
Case 1. OS : MacOs 10.14 , Browser: Safari 12  , Camera : internal Camera
        Click the QVGA button we will get the video stream, then click the VGA button , there is no video and no error information.
Case 2. OS : MacOs 10.14 , Browser: Safari 12/Chrome/Firefox  , Camera : external Camera
        It's OK with the same process as Case 1.
Case 3. OS : MacOs 10.12 , Browser: Safari 12/Chrome/Firefox   , Camera : internal Camera
        It's OK with the same process as Case 1.
Case 4. OS : MacOs 10.14 , Browser: Chrome/Firefox  , Camera : internal Camera
        It's OK with the same process as Case 1.

There is no video when change the resolution of internal camera in safari 12 in macos 10.14.

[youenn fablet]

It seems strange that we are not able to capture at VGA resolution.
I was not able to repro it locally.

Have you tried Safari Technology Preview?
Is there any MacOS console logging that you can share which points to some of these issues?

[xpeng]

(In reply to youenn fablet from comment #1)
> It seems strange that we are not able to capture at VGA resolution.
> I was not able to repro it locally.
> 
> Have you tried Safari Technology Preview?
> Is there any MacOS console logging that you can share which points to some
> of these issues?

we can reproduce the issue 100% in two macbook air .
you can also reproduce the issue like this:
Click the VGA button first , you can get the video, then click the other button like QVGA button .

[youenn fablet]

(In reply to xpeng from comment #2)
> (In reply to youenn fablet from comment #1)
> > It seems strange that we are not able to capture at VGA resolution.
> > I was not able to repro it locally.
> > 
> > Have you tried Safari Technology Preview?
> > Is there any MacOS console logging that you can share which points to some
> > of these issues?
> 
> we can reproduce the issue 100% in two macbook air .

Can you give the exact Mac book air configuration?

> you can also reproduce the issue like this:
> Click the VGA button first , you can get the video, then click the other
> button like QVGA button .

So it seems that when you go VGA -> QVGA you loose the video.
Ditto for QVGA -> VGA, right?

We did a bunch of work in that area and I am wondering whether this might be already solved in Safari Technology Preview.

[xpeng]

yes i find that the issue has been fixed in preview release 68 . but i find another issue, i will open a new issue for that , thanks

[xpeng]

the issue can be reproduced in Preview 70 .