Cleans up ios stuff declaration removing not needed ivars backing properties

modules/videoio/include/opencv2/videoio/cap_ios.h

@@ -41,27 +41,9 @@
 
 @interface CvAbstractCamera : NSObject
 {
-    AVCaptureSession* captureSession;
-    AVCaptureConnection* videoCaptureConnection;
-    AVCaptureVideoPreviewLayer *captureVideoPreviewLayer;
-
     UIDeviceOrientation currentDeviceOrientation;
 
     BOOL cameraAvailable;
-    BOOL captureSessionLoaded;
-    BOOL running;
-    BOOL useAVCaptureVideoPreviewLayer;
-
-    AVCaptureDevicePosition defaultAVCaptureDevicePosition;
-    AVCaptureVideoOrientation defaultAVCaptureVideoOrientation;
-    NSString *const defaultAVCaptureSessionPreset;
-
-    int defaultFPS;
-
-    UIView* parentView;
-
-    int imageWidth;
-    int imageHeight;
 }
 
 @property (nonatomic, strong) AVCaptureSession* captureSession;
@@ -121,14 +103,6 @@
     dispatch_queue_t videoDataOutputQueue;
     CALayer *customPreviewLayer;
 
-    BOOL grayscaleMode;
-
-    BOOL recordVideo;
-    BOOL rotateVideo;
-    AVAssetWriterInput* recordAssetWriterInput;
-    AVAssetWriterInputPixelBufferAdaptor* recordPixelBufferAdaptor;
-    AVAssetWriter* recordAssetWriter;
-
     CMTime lastSampleTime;
 
 }

modules/videoio/src/cap_ios_video_camera.mm

@@ -183,7 +183,7 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;}
                 break; // leave the layer in its last known orientation
         }
 
-        switch (defaultAVCaptureVideoOrientation) {
+        switch (self.defaultAVCaptureVideoOrientation) {
             case AVCaptureVideoOrientationLandscapeRight:
                 rotation_angle += 180;
                 break;
@@ -249,7 +249,7 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;}
                 break; // leave the layer in its last known orientation
         }
 
-        switch (defaultAVCaptureVideoOrientation) {
+        switch (self.defaultAVCaptureVideoOrientation) {
             case AVCaptureVideoOrientationLandscapeRight:
                 rotation_angle += 180;
                 break;