Bug 200089 – [iOS 13 Beta] camera-stream failed to show up on screen

• Component: WebRTC
• Status: NEW

[Kyle]

Repo:
1) On iPhone X, with iOs13 beta 13.0 (17A5534f), open Safari
2) Open https://mdn-samples.mozilla.org/s/webrtc-capturestill/
3) Allow camera access

Expect:
4) See camera picture on the screen

Instead:
4) Nothing shows up


*note, 
if we try the Video Chat Client (https://apprtc.appspot.com/) on the WebRTC samples page(https://webrtc.github.io/samples/)
one can see the video is being captured, and sent to the other computer.

[youenn fablet]

Hi Kyle,

I believe mdn-samples.mozilla.org is not using playsinline.
It might also need autoplay and muted.

If you load the page in landscape mode and start capturing in landscape mode, you should see a few frames. Portrait mode had an issue that is now fixed.

[Kyle]

Thanks for the quick reply.

If I understand you correctly...
1) It is expected that those videos are not playing inline. The fix will be to add playsinline, autoplay and muted.

2) The reason that I see a few frames in landscape mode is due to a bug, that only repo in landscape mode but not in portrait mode?

And to sum up, 
a) there's nothing wrong with iOS 13's Safari, 
b) there IS a bug in iOS 12's Safari that allows these examples to work, and now, in iOS 13, these bugs had been fixed?

[Kyle]

Just an update, I copied their code on codepen and added the necessary tags, and now I see:
1) nothing on portrait mode 
2) video streaming normally on landscape mode
https://codepen.io/kylelam/pen/oKLxMy

[youenn fablet]

(In reply to Kyle from comment #3)
> Just an update, I copied their code on codepen and added the necessary tags,
> and now I see:
> 1) nothing on portrait mode 
> 2) video streaming normally on landscape mode
> https://codepen.io/kylelam/pen/oKLxMy

Yes this is fixed in WebKit ToT.

(In reply to Kyle from comment #2)
> Thanks for the quick reply.
> 
> If I understand you correctly...
> 1) It is expected that those videos are not playing inline. The fix will be
> to add playsinline, autoplay and muted.

Yes

> 2) The reason that I see a few frames in landscape mode is due to a bug,
> that only repo in landscape mode but not in portrait mode?

The few frames in landscape mode is probably due to playsinline.


> And to sum up, 
> a) there's nothing wrong with iOS 13's Safari, 
The bug for portrait mode was fixed in ToT.

> b) there IS a bug in iOS 12's Safari that allows these examples to work, and
> now, in iOS 13, these bugs had been fixed?

There is no bug in iOS12, iOS requires playsinline and will probably continue.