use Extensions API fail

[yihao wu]

Question 1：When I use Extensions API to take photos, I always get stuck without callback success or failure. Why? Galaxy S20

Question 2：When I use Galaxy S21, after using Ecxtensions API，it is crash after switching the front lens. Why? IsExtensionAvailable returns true。

fail track：No supported surface combination is found for camera device - Id : 1.  May be attempting to bind too many use cases. Existing surfaces: [] New configs: [androidx.camera.core.impl.ImageCaptureConfig@878a9ba, androidx.camera.core.impl.PreviewConfig@7bab9dc, androidx.camera.core.impl.ImageAnalysisConfig@b4a5ae5]

[Scott Nien]

Hi 

Thanks for reaching out! 

This doesn't seem right !  

Can you let us know what's the CameraX version you were using ?  

Also, 

When you switch to the front lens,  did you invoke unbindAll first ?  

Scott

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[yihao wu]

version is 1.2.0-alpha03。
Do I have to unbindAll every time I change the camera? Or is it only needed for the rear switch and the front?

[yihao wu]

It's the same with unbindAll to report errors.

在2022年11月17日星期四 UTC+8 12:04:23<scot...@google.com> 写道：

[Scott Nien]

Hi Yihao, 

Can you provide the logs and more code snippets regarding how you bind/unbind and take pictures ?   

Maybe filing a bug here would be easier to track.  

Scott

[yihao wu]

Thank you. Can you test it with Samsung mobile phones first? Were all these features used normally before?

And I found that the cut camera flicker is because I used ImageAnalysis, do you want to ask this has an impact? And is Extension API a useCase?

[Scott Nien]

Thanks !  I've confirmed the S22 indeed has an issue that ImageAnalysis cannot be bound with Extensions enabled using the front lens.  We will fix that issue.  

Regarding the S20 issue, I can't reproduce it yet.   Can you confirm that the taking picture will succeed in S22 ? (using back camera) 
It would also be helpful if you can provide logs.  

Scott

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