Front camera : disabling mirror effect

[root-ansh]

I used the following code to be able to open and save a front cam picture, but the resultant picture I receive is mirrored ( preview's left becomes saved picture's right and vice versa)

• code:

  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_simple_cam);
  
      fotoapparat = getFotoApparatObj();
  
      fabCapture = findViewById(R.id.fab_clickpic);
      fabCapture.setOnClickListener(v -> {
          fabCapture.setEnabled(false);
          capturePicture();
      });
  
  }
  private void capturePicture() {
      String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
      String imageFileName = "PIC_" + timeStamp + ".jpg";
      File tmpFile = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), imageFileName);
      fotoapparat.takePicture().saveToFile(tmpFile).whenDone(unit -> onFileSuccesfullySaved(tmpFile));
  }
  private void onFileSuccesfullySaved(File tmpFile) {
      fabCapture.setEnabled(true);
      Uri tempFileUri = Uri.fromFile(tmpFile);
      Intent outputIntent = new Intent();
  
      if (tempFileUri != null) {
          setResult(RESULT_OK, outputIntent);
          outputIntent.putExtra(MainActivity.KEY_URI_STRING, tempFileUri.toString());
      } else {
          setResult(RESULT_CANCELED, outputIntent);
      }
      finish();
  
  }
  private Fotoapparat getFotoApparatObj() {
      Context ctx = this;
      CameraView cv = findViewById(R.id.camera_view);
      return Fotoapparat
              .with(ctx)
              .into(cv)
              .previewScaleType(ScaleType.CenterCrop)
              .photoResolution(ResolutionSelectorsKt.highestResolution())
              .lensPosition(LensPositionSelectorsKt.front()) 
  
              .focusMode(SelectorsKt.firstAvailable(
                      FocusModeSelectorsKt.continuousFocusPicture(),
                      FocusModeSelectorsKt.autoFocus(),        
                      FocusModeSelectorsKt.fixed()      
              ))
              .flash(SelectorsKt.firstAvailable(
                      FlashSelectorsKt.autoRedEye(),
                      FlashSelectorsKt.autoFlash(),
                      FlashSelectorsKt.torch()
              ))
              .build();
  }
  }

• Sample gif : https://imgur.com/JEOoHOy
• FA version: 2.7
• Devices/APIs affected: api 21-28 (i use minSDK as 21 and targetSDK as 28)
• Testing device details : Redmi MiA2 androidone mobile with android version 9(pie)

is there a way to recieve the image as it is, or is it a hardware problem?

[root-ansh]

Also, i didn't wanted to open a new request for this, but we can't toggle HDR , right?

[AndyAls]

Have you solved this problem?

[root-ansh]

@AndyAls, not yet, went on with other projects

[AndyAls]

thank you

[Bridouille]

Hi, I ran into the same issue. For now, this is how I fixed it, applying a matrix transformation to the Bitmap:

fun Bitmap.flipAndRotate(degrees: Float): Bitmap {
    val matrix = Matrix().apply {
        preScale(1f, -1f)
        postRotate(degrees)
    }
    return Bitmap.createBitmap(this, 0, 0, width, height, matrix, true)
}

The preScale(1f, -1f) did the trick.