[Bug report] Barcode AutoZoom not working with coordinate matrix in InputImage

[Fabi019]

Describe the bug

The auto-zoom feature of the barcode scanner does not work when using a InputImage that has a coordinate matrix attached.
In my code I use the matrix to automatically map the ml-kit barcode coordinates to my preview views coordinate system.

To Reproduce

1. Create a barcode scanner with configured auto-zoom
2. In the ImageAnalysis create the InputImage using a Matrix and pass the image to the process function
3. No auto-zoom will happen

The code to create the Matrix is the same as used in the MlKitAnalyzer and does successfully map the coordinates.

When not using a custom matrix I can see the following logcat output and the camera is zoomed in:

I  Process PredictedArea: [0,58, 0,00, 0,72, 0,66, 0,00], frameIndex = 101
I  Process PredictedArea: [0,59, 0,01, 0,75, 0,36, 0,00], frameIndex = 102
I  Process PredictedArea: [0,52, 0,05, 0,74, 0,29, 0,00], frameIndex = 105
I  Process PredictedArea: [0,52, 0,06, 0,74, 0,28, 0,00], frameIndex = 106
I  Process PredictedArea: [0,52, 0,01, 0,75, 0,27, 0,00], frameIndex = 107
I  Process PredictedArea: [0,48, 0,01, 0,74, 0,27, 0,00], frameIndex = 108
I  Going to set zoom = 1.9689503

With my custom matrix the following is logged and no zooming is happening (Camera is about the same distance from the code as in the first example):

I  Process PredictedArea: [0,60, 0,54, 0,69, 0,93, 0,00], frameIndex = 1
I  Process PredictedArea: [0,57, 0,52, 0,69, 0,93, 0,00], frameIndex = 2
I  Process PredictedArea: [0,58, 0,60, 0,69, 0,93, 0,00], frameIndex = 3
I  Process PredictedArea: [0,59, 0,64, 0,70, 0,93, 0,00], frameIndex = 4
I  Process PredictedArea: [0,58, 0,61, 0,70, 0,97, 0,00], frameIndex = 5
I  Process PredictedArea: [0,58, 0,59, 0,70, 0,97, 0,00], frameIndex = 6
I  Auto zoom to 1.0 is filtered by threshold

I suspect that this might be because when mapping the coordinates using the matrix, the size of the codes is increased and thus the AutoZoom algorithm thinks that a zoom is not needed.
To solve that problem, the AutoZoom should calculate the distance based on the unmodified bounding box of the barcode instead of with the mapped coordinates.

Expected behavior
The zoom ratio should be updated to zoom in on far away codes.

SDK Info:

• com.google.android.gms:play-services-mlkit-barcode-scanning:18.3.0