Small QR Codes do not work

[maerni]

We wanted to use the ngx-scanner and installed the following versions (we use Angular 13):

@zxing/browser 0.1.1
@zxing/library 0.19.2
@zxing/ngx-scanner 3.5.0

Now we have the problem, that it does not work with small QR Codes (i.e. 3x3mm).

With normal or big QR Codes it works.

What could be the problem? How can we fix this?

Thanks.

[daniyal76]

i have same problem.if we could set zoom for camera it would be better.

[maerni]

yes, this would be very good, if the autofocus/zoom wourd work fine. without it is not usable for me ;-(

[hardik-hns]

Do you happen to have any update on this?? I'm using the latest version 18.0.0 of @zxing/ngx-scanner but still facing this issue.

[hardik-hns]

Hi @maerni , The below link would be useful for you as it worked for me - #535 (comment)

I added the below code in my component and it works -

ZXingScannerComponent.prototype.getAnyVideoDevice = (): Promise<MediaStream> => { return navigator.mediaDevices.getUserMedia({ audio: false, video: { width: { min: 640, ideal: 1920 }, height: { min: 400, ideal: 1080 }, aspectRatio: { ideal: 1.7777777778 } } }); };