QR code scan failure [375511533]

Assigned

Bug

[AOSP] assigned

Status Update

No update yet.

Description

ce...@amazon.corp-partner.google.com

created issue #1

Oct 25, 2024 02:02AM

QR code scan always failure, after deep diving, I found the selected best preview size is not appropriate.
In my case, the device size ratio is 4:3, while the selected preview size ratio is 16:9, then in the image crop, about half of the image will be discard, then lead to a QR code decode failure.

Android version: android 14

log snippet:
10-24 07:09:25.714 10379 11511 E QrCamera: getBestPreviewSize winRatio w = 479, h = 479, ratio = 1.0
10-24 07:09:25.714 10379 11511 E QrCamera: getBestPreviewSize supported w = 176, h = 144, ratio = 0.8181818181818182, bw = 1.0, rw = 0.18181818181818177
10-24 07:09:25.714 10379 11511 E QrCamera: getBestPreviewSize best choice w = 176, h = 144
10-24 07:09:25.714 10379 11511 E QrCamera: getBestPreviewSize supported w = 320, h = 240, ratio = 0.75, bw = 0.18181818181818177, rw = 0.25
10-24 07:09:25.714 10379 11511 E QrCamera: getBestPreviewSize best choice w = 320, h = 240
10-24 07:09:25.714 10379 11511 E QrCamera: getBestPreviewSize supported w = 640, h = 480, ratio = 0.75, bw = 0.25, rw = 0.25
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 640, h = 480
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 960, h = 720, ratio = 0.75, bw = 0.25, rw = 0.25
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 960, h = 720
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 1024, h = 576, ratio = 0.5625, bw = 0.25, rw = 0.4375
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 1024, h = 768, ratio = 0.75, bw = 0.25, rw = 0.25
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 1024, h = 768
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 1280, h = 720, ratio = 0.5625, bw = 0.25, rw = 0.4375
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 1280, h = 720
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 1280, h = 960, ratio = 0.75, bw = 0.4375, rw = 0.25
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 1280, h = 960
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 1600, h = 896, ratio = 0.56, bw = 0.25, rw = 0.43999999999999995
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 1600, h = 896
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize supported w = 1600, h = 1200, ratio = 0.75, bw = 0.43999999999999995, rw = 0.25
10-24 07:09:25.715 10379 11511 E QrCamera: getBestPreviewSize best choice w = 1600, h = 1200
10-24 07:09:25.716 10379 11511 E QrCamera: getBestPreviewSize supported w = 1920, h = 1080, ratio = 0.5625, bw = 0.25, rw = 0.4375
10-24 07:09:25.716 10379 11511 E QrCamera: getBestPreviewSize best choice w = 1920, h = 1080
10-24 07:09:25.716 10379 11511 E QrCamera: getBestPreviewSize supported w = 2560, h = 1440, ratio = 0.5625, bw = 0.4375, rw = 0.4375
10-24 07:09:25.716 10379 11511 E QrCamera: getBestPreviewSize best choice w = 2560, h = 1440
10-24 07:09:25.716 10379 11511 E QrCamera: preview size set w = 2560, h = 1440

debug code snippet:
private Size getBestPreviewSize(Camera.Parameters parameters) {
final double minRatioDiffPercent = 0.1;
final Size windowSize = mScannerCallback.getViewSize();
final double winRatio = getRatio(windowSize.getWidth(), windowSize.getHeight());
Log.e(TAG, "getBestPreviewSize winRatio w = " + windowSize.getWidth()
+ ", h = " + windowSize.getHeight() + ", ratio = " + winRatio);
double bestChoiceRatio = 0;
Size bestChoice = new Size(0, 0);
List<Camera.Size> supportedPreviewSizes = parameters.getSupportedPreviewSizes();
supportedPreviewSizes.sort(Comparator.comparingInt(Camera.Size::hashCode));
for (Camera.Size size : supportedPreviewSizes) {
double ratio = getRatio(size.width, size.height);
Log.e(TAG, "getBestPreviewSize supported w = " + size.width + ", h = " +
size.height + ", ratio = " + ratio +
", bw = " + (Math.abs(bestChoiceRatio - winRatio) / winRatio) +
", rw = " + (Math.abs(ratio - winRatio) / winRatio));
if (size.height * size.width > bestChoice.getWidth() * bestChoice.getHeight()
&& (Math.abs(bestChoiceRatio - winRatio) / winRatio > minRatioDiffPercent
|| Math.abs(ratio - winRatio) / winRatio <= minRatioDiffPercent)) {
bestChoice = new Size(size.width, size.height);
bestChoiceRatio = getRatio(size.width, size.height);
Log.e(TAG, "getBestPreviewSize best choice w = " + size.width
+ ", h = " + size.height);
}
}
return bestChoice;
}

scan.zip

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Comments

ce...@amazon.corp-partner.google.com <ce...@amazon.corp-partner.google.com> #2Oct 25, 2024 03:13AM

Thank you for reporting this issue. For us to further investigate this issue, please provide the following additional information:

What steps are needed to reproduce this issue? Frequency of occurrence?

Which Android build are you using? (e.g. TQ3A.230705.001.A1)

Which device did you use to reproduce this issue?

Can you confirm if this issue is reproducible on a Pixel/Nexus device?

Are you reporting this as Developer or User?

Screen Record of the Issue
Please capture screen record or video of the issue using following steps:

adb shell screenrecord /sdcard/video.mp4
Subsequently use following command to pull the recorded file:
adb pull /sdcard/video.mp4
Attach the file to this issue.

Android bug report (to be captured after reproducing the issue)
For steps to capture a bug report, please refer:

https://developer.android.com/studio/debug/bug-report#bugreportdevice

Alternate method
Navigate to “Developer options”, ensure “USB debugging” is enabled, then enable “Bug report shortcut”. Capture bug report by holding the power button and selecting the “Take bug report” option.

Note: Please upload the bug report and screenshot to google drive and share the folder to android-bugreport@google.com, then share the link here.

ra...@google.com <ra...@google.com> #3Oct 25, 2024 06:56AM

Assigned to ra...@google.com.

What steps are needed to reproduce this issue? Frequency of occurrence?
1. Set "animator duration scale" to "animation off" in the developer settings
2. Open ANY app, then press minimize button on the bottom of the display to minimize the app. The moment the app is minimized, a huge icon shortly flickers on upper half of screen.

Frequency: everytime

Which Android build are you using? (e.g. TQ3A.230705.001.A1)
T3TD33.16-66-3

Which device did you use to reproduce this issue?
Moto G54 5G

Can you confirm if this issue is reproducible on a Pixel/Nexus device?
unable to test, do not own such device

Are you reporting this as Developer or User?
as a user

Screen Record of the Issue
do not know how to use adb shell, sorry.

Please capture screen record or video of the issue using following steps:

ce...@amazon.corp-partner.google.com <ce...@amazon.corp-partner.google.com> #4Oct 25, 2024 02:32PM

It could also be related to the 120 Hz display maybe, that only that makes the issue noticable? Just a theory.

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ce...@amazon.corp-partner.google.com <ce...@amazon.corp-partner.google.com> #5Oct 25, 2024 02:39PM

It looks like you are raising an issue as an Android user, rather than an Android Open Source Developer.

For user support, please see the Android Help Center or post on our Android Help Community.

For Pixel phone support, please see the Pixel Help Center or post on our Pixel Help Community.

Support for other devices is provided by the device manufacturers or by the carriers selling those devices, see here to get manufacturer help for your Android device.

ra...@google.com <ra...@google.com> #6Oct 28, 2024 08:10AM

Does Obsolete in this case mean that this issue is fixed in Android 14? :D

ce...@amazon.corp-partner.google.com <ce...@amazon.corp-partner.google.com> #7Nov 4, 2024 02:15AM

Well???

Issue 375511533