vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b

2026-08-22 00:10:33 +08:00
commit f7f077da11
6933 changed files with 2335208 additions and 0 deletions
@@ -0,0 +1,138 @@
+//
+//  CvPhotoCamera2.mm
+//
+//  Created by Giles Payne on 2020/04/01.
+//
+
+#import "CvCamera2.h"
+
+#pragma mark - Private Interface
+
+@interface CvPhotoCamera2 ()
+{
+    id<CvPhotoCameraDelegate2> _delegate;
+}
+
+@property (nonatomic, strong) AVCaptureStillImageOutput* stillImageOutput;
+
+@end
+
+
+#pragma mark - Implementation
+
+@implementation CvPhotoCamera2
+
+
+#pragma mark Public
+
+- (void)setDelegate:(id<CvPhotoCameraDelegate2>)newDelegate {
+    _delegate = newDelegate;
+}
+
+- (id<CvPhotoCameraDelegate2>)delegate {
+    return _delegate;
+}
+
+#pragma mark - Public interface
+
+- (void)takePicture
+{
+    if (self.cameraAvailable == NO) {
+        return;
+    }
+    self.cameraAvailable = NO;
+
+    [self.stillImageOutput captureStillImageAsynchronouslyFromConnection:self.videoCaptureConnection
+                                                       completionHandler:
+     ^(CMSampleBufferRef imageSampleBuffer, NSError *error)
+     {
+         if (error == nil && imageSampleBuffer != NULL)
+         {
+             // TODO check
+             //             NSNumber* imageOrientation = [UIImage cgImageOrientationForUIDeviceOrientation:currentDeviceOrientation];
+             //             CMSetAttachment(imageSampleBuffer, kCGImagePropertyOrientation, imageOrientation, 1);
+
+             NSData *jpegData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageSampleBuffer];
+
+             dispatch_async(dispatch_get_main_queue(), ^{
+                 [self.captureSession stopRunning];
+
+                 // Make sure we create objects on the main thread in the main context
+                 UIImage* newImage = [UIImage imageWithData:jpegData];
+
+                 //UIImageOrientation orientation = [newImage imageOrientation];
+
+                 // TODO: only apply rotation, don't scale, since we can set this directly in the camera
+                 /*
+                  switch (orientation) {
+                  case UIImageOrientationUp:
+                  case UIImageOrientationDown:
+                  newImage = [newImage imageWithAppliedRotationAndMaxSize:CGSizeMake(640.0, 480.0)];
+                  break;
+                  case UIImageOrientationLeft:
+                  case UIImageOrientationRight:
+                  newImage = [newImage imageWithMaxSize:CGSizeMake(640.0, 480.0)];
+                  default:
+                  break;
+                  }
+                  */
+
+                 // We have captured the image, we can allow the user to take another picture
+                 self.cameraAvailable = YES;
+
+                 NSLog(@"CvPhotoCamera2 captured image");
+                 [self.delegate photoCamera:self capturedImage:newImage];
+
+                 [self.captureSession startRunning];
+             });
+         }
+     }];
+
+
+}
+
+- (void)stop;
+{
+    [super stop];
+    self.stillImageOutput = nil;
+}
+
+
+#pragma mark - Private Interface
+
+
+- (void)createStillImageOutput;
+{
+    // setup still image output with jpeg codec
+    self.stillImageOutput = [[AVCaptureStillImageOutput alloc] init];
+    NSDictionary *outputSettings = [NSDictionary dictionaryWithObjectsAndKeys:AVVideoCodecTypeJPEG, AVVideoCodecKey, nil];
+    [self.stillImageOutput setOutputSettings:outputSettings];
+    [self.captureSession addOutput:self.stillImageOutput];
+
+    for (AVCaptureConnection *connection in self.stillImageOutput.connections) {
+        for (AVCaptureInputPort *port in [connection inputPorts]) {
+            if ([port.mediaType isEqual:AVMediaTypeVideo]) {
+                self.videoCaptureConnection = connection;
+                break;
+            }
+        }
+        if (self.videoCaptureConnection) {
+            break;
+        }
+    }
+    NSLog(@"[Camera] still image output created");
+}
+
+
+- (void)createCaptureOutput;
+{
+    [self createStillImageOutput];
+}
+
+- (void)createCustomVideoPreview;
+{
+    //do nothing, always use AVCaptureVideoPreviewLayer
+}
+
+
+@end