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I used openCV camera to track the objects. The code is as below and defaultAVCaptureVideoOrientation is set to landscape RIGHT. Now if i rotate the device to landscape LEFT, the camera is not rotated correctly. So i used layoutPreviewLayer to set the camera rotation but it is not working.

self.videoCamera = [[VideoCamera alloc] initWithParentView:imgView];
self.videoCamera.defaultAVCaptureVideoOrientation = AVCaptureVideoOrientationLandscapeRight;
self.videoCamera.defaultAVCaptureDevicePosition = AVCaptureDevicePositionBack;
self.videoCamera.rotateVideo = YES;

self.videoCamera.defaultAVCaptureSessionPreset = AVCaptureSessionPreset640x480;

self.videoCamera.defaultFPS = 30;
self.videoCamera.delegate = self;
self.videoCamera.recordVideo = NO;
self.videoCamera.grayscaleMode = NO;

Using the below code the landscape RIGHT is working fine. But if i rotate the iphoneXR device to landscape LEFT, it is not working.

@implementation VideoCamera - (void)updateOrientation { self->customPreviewLayer.bounds = CGRectMake(0, 0, self.parentView.frame.size.width, self.parentView.frame.size.height); [self layoutPreviewLayer]; }

• (void)layoutPreviewLayer { if (self.parentView != nil) { CALayer* layer = self->customPreviewLayer; CGRect bounds = self->customPreviewLayer.bounds; int rotation_angle = 0;

  switch (self.defaultAVCaptureVideoOrientation) {
      case AVCaptureVideoOrientationLandscapeRight:
          rotation_angle = -180;
          break;
      case AVCaptureVideoOrientationLandscapeLeft:
          rotation_angle = 180;
          break;
      default:
          break;
  }
  layer.position = CGPointMake(self.parentView.frame.size.width/2., self.parentView.frame.size.height/2.);
  layer.affineTransform = CGAffineTransformMakeRotation( DEGREES_RADIANS(rotation_angle) );
  layer.bounds = bounds;
  

  } } @end

I used openCV camera to track the objects. The code is as below and defaultAVCaptureVideoOrientation is set to landscape RIGHT. Now if i rotate the device to landscape LEFT, the camera is not rotated correctly. So i used layoutPreviewLayer to set the camera rotation but it is not working.

self.videoCamera = [[VideoCamera alloc] initWithParentView:imgView];
self.videoCamera.defaultAVCaptureVideoOrientation = AVCaptureVideoOrientationLandscapeRight;
self.videoCamera.defaultAVCaptureDevicePosition = AVCaptureDevicePositionBack;
self.videoCamera.rotateVideo = YES;

self.videoCamera.defaultAVCaptureSessionPreset = AVCaptureSessionPreset640x480;

self.videoCamera.defaultFPS = 30;
self.videoCamera.delegate = self;
self.videoCamera.recordVideo = NO;
self.videoCamera.grayscaleMode = NO;

Using the below code the landscape RIGHT is working fine. But if i rotate the iphoneXR device to landscape LEFT, it is not working.

@implementation VideoCamera - (void)updateOrientation { self->customPreviewLayer.bounds = CGRectMake(0, 0, self.parentView.frame.size.width, self.parentView.frame.size.height); [self layoutPreviewLayer]; }

• (void)layoutPreviewLayer { if (self.parentView != nil) { CALayer* layer = self->customPreviewLayer; CGRect bounds = self->customPreviewLayer.bounds; int rotation_angle = 0;

  switch (self.defaultAVCaptureVideoOrientation) {
      case AVCaptureVideoOrientationLandscapeRight:
          rotation_angle = -180;
          break;
      case AVCaptureVideoOrientationLandscapeLeft:
          rotation_angle = 180;
          break;
      default:
          break;
  }
  layer.position = CGPointMake(self.parentView.frame.size.width/2., self.parentView.frame.size.height/2.);
  layer.affineTransform = CGAffineTransformMakeRotation( DEGREES_RADIANS(rotation_angle) );
  layer.bounds = bounds;
  

  } } @end

I used openCV camera to track the objects. The code is as below and defaultAVCaptureVideoOrientation is set to landscape RIGHT. Now if i rotate the device to landscape LEFT, the camera is not rotated correctly. So i used layoutPreviewLayer to set the camera rotation but it is not working.

self.videoCamera = [[VideoCamera alloc] initWithParentView:imgView];
self.videoCamera.defaultAVCaptureVideoOrientation = AVCaptureVideoOrientationLandscapeRight;
self.videoCamera.defaultAVCaptureDevicePosition = AVCaptureDevicePositionBack;
self.videoCamera.rotateVideo = YES;

self.videoCamera.defaultAVCaptureSessionPreset = AVCaptureSessionPreset640x480;

self.videoCamera.defaultFPS = 30;
self.videoCamera.delegate = self;
self.videoCamera.recordVideo = NO;
self.videoCamera.grayscaleMode = NO;

Using the below code the landscape RIGHT is working fine. But if i rotate the iphoneXR device to landscape LEFT, it is not working.

@implementation VideoCamera
- (void)updateOrientation
{
self->customPreviewLayer.bounds = CGRectMake(0, 0, self.parentView.frame.size.width, self.parentView.frame.size.height);
[self layoutPreviewLayer];
}
 
 
}
- (void)layoutPreviewLayer
{
 if (self.parentView != nil)
 {
  CALayer* layer = self->customPreviewLayer;
 CGRect bounds = self->customPreviewLayer.bounds;
 int rotation_angle = 0;
 
0;
switch (self.defaultAVCaptureVideoOrientation) {
 case AVCaptureVideoOrientationLandscapeRight:
 rotation_angle = -180;
 break;
  case AVCaptureVideoOrientationLandscapeLeft:
 rotation_angle = 180;
 break;
 default:
 break;
 }
 layer.position = CGPointMake(self.parentView.frame.size.width/2., self.parentView.frame.size.height/2.);
 layer.affineTransform = CGAffineTransformMakeRotation( DEGREES_RADIANS(rotation_angle) );
 layer.bounds = bounds;
 }
}
@end
  
}
}
@end