├── FaceDetection.gif ├── LYFaceDetection ├── LYFaceDetection │ ├── test.jpg │ ├── OpenGL │ │ ├── FaceTextureShader.fsh │ │ ├── FaceTextureShader.vsh │ │ ├── FaceDetectionShader.vsh │ │ ├── LYShaderManager.h │ │ ├── FaceDetectionShader.fsh │ │ └── LYShaderManager.m │ ├── ViewController.h │ ├── AppDelegate.h │ ├── FaceDetectionView.h │ ├── main.m │ ├── LYFaceDetector.h │ ├── Camera │ │ ├── LYCameraManager.h │ │ └── LYCameraManager.m │ ├── Info.plist │ ├── Base.lproj │ │ ├── LaunchScreen.storyboard │ │ └── Main.storyboard │ ├── LYFaceDetector.m │ ├── Assets.xcassets │ │ └── AppIcon.appiconset │ │ │ └── Contents.json │ ├── AppDelegate.m │ ├── ViewController.m │ └── FaceDetectionView.m └── LYFaceDetection.xcodeproj │ ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcuserdata │ │ └── jacky.xcuserdatad │ │ └── UserInterfaceState.xcuserstate │ ├── xcuserdata │ └── jacky.xcuserdatad │ │ ├── xcschemes │ │ └── xcschememanagement.plist │ │ └── xcdebugger │ │ └── Breakpoints_v2.xcbkptlist │ └── project.pbxproj ├── README.md └── .gitignore /FaceDetection.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/LustySwimmer/LYFaceDetection/HEAD/FaceDetection.gif -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/test.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/LustySwimmer/LYFaceDetection/HEAD/LYFaceDetection/LYFaceDetection/test.jpg -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/OpenGL/FaceTextureShader.fsh: -------------------------------------------------------------------------------- 1 | varying lowp vec2 texCoordVarying; 2 | 3 | uniform sampler2D inputTexture; 4 | 5 | void main() 6 | { 7 | gl_FragColor = texture2D(inputTexture, texCoordVarying); 8 | } 9 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/OpenGL/FaceTextureShader.vsh: -------------------------------------------------------------------------------- 1 | attribute vec4 aPosition; 2 | attribute vec2 aTexCoordinate; 3 | 4 | varying lowp vec2 texCoordVarying; 5 | 6 | void main() 7 | { 8 | texCoordVarying = aTexCoordinate; 9 | gl_Position = aPosition; 10 | } 11 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection.xcodeproj/project.xcworkspace/xcuserdata/jacky.xcuserdatad/UserInterfaceState.xcuserstate: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/LustySwimmer/LYFaceDetection/HEAD/LYFaceDetection/LYFaceDetection.xcodeproj/project.xcworkspace/xcuserdata/jacky.xcuserdatad/UserInterfaceState.xcuserstate -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/OpenGL/FaceDetectionShader.vsh: -------------------------------------------------------------------------------- 1 | attribute vec4 aPosition; 2 | attribute vec2 aTexCoordinate; 3 | 4 | varying lowp vec2 texCoordVarying; 5 | 6 | uniform mat4 rotateMatrix; 7 | 8 | void main() 9 | { 10 | texCoordVarying = aTexCoordinate; 11 | gl_Position = rotateMatrix * aPosition; 12 | } 13 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface ViewController : UIViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface AppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | 16 | @end 17 | 18 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/FaceDetectionView.h: -------------------------------------------------------------------------------- 1 | // 2 | // FaceDetectionView.h 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface FaceDetectionView : UIView 12 | 13 | - (void)displayPixelBuffer:(CVPixelBufferRef)pixelBuffer; 14 | 15 | - (UIImage *)snapshot; 16 | 17 | @end 18 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "AppDelegate.h" 11 | 12 | int main(int argc, char * argv[]) { 13 | @autoreleasepool { 14 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/LYFaceDetector.h: -------------------------------------------------------------------------------- 1 | // 2 | // LYFaceDetector.h 3 | // OpenGLESPracticeDemo 4 | // 5 | // Created by LustySwimmer on 2018/1/18. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface LYFaceDetector : NSObject 12 | 13 | + (void)detectCVPixelBuffer:(CVPixelBufferRef)pixelBuffer completionHandler:(void(^)(CIFaceFeature *result, CIImage *ciImage))completion; 14 | 15 | @end 16 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection.xcodeproj/xcuserdata/jacky.xcuserdatad/xcschemes/xcschememanagement.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | SchemeUserState 6 | 7 | LYFaceDetection.xcscheme 8 | 9 | orderHint 10 | 0 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/Camera/LYCameraManager.h: -------------------------------------------------------------------------------- 1 | // 2 | // LYCameraManager.h 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | 12 | @interface LYCameraManager : NSObject 13 | 14 | + (instancetype)cameraManagerWithSampleBufferDelegate:(id)delegate; 15 | 16 | - (void)switchCamera; 17 | 18 | @end 19 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection.xcodeproj/xcuserdata/jacky.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 8 | 14 | 15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/OpenGL/LYShaderManager.h: -------------------------------------------------------------------------------- 1 | // 2 | // LYShaderManager.h 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | #import 12 | 13 | @interface LYShaderManager : NSObject 14 | 15 | @property (nonatomic, assign) GLuint program; 16 | 17 | - (instancetype)initWithVertexShaderFileName:(NSString *)vertexFileName fragmentFileName:(NSString *)fragmentFileName; 18 | 19 | - (GLint)getUniformLocation:(const GLchar*) name; 20 | 21 | - (GLuint)getAttributeLocation:(const GLchar *)name; 22 | 23 | - (void)useProgram; 24 | 25 | @end 26 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/OpenGL/FaceDetectionShader.fsh: -------------------------------------------------------------------------------- 1 | varying highp vec2 texCoordVarying; 2 | precision mediump float; 3 | 4 | uniform sampler2D SamplerY; 5 | uniform sampler2D SamplerUV; 6 | 7 | void main() 8 | { 9 | mediump vec3 yuv; 10 | lowp vec3 rgb; 11 | mediump mat3 convert = mat3(1.164, 1.164, 1.164, 12 | 0.0, -0.213, 2.112, 13 | 1.793, -0.533, 0.0); 14 | // Subtract constants to map the video range start at 0 15 | yuv.x = (texture2D(SamplerY, texCoordVarying).r);// - (16.0/255.0)); 16 | yuv.yz = (texture2D(SamplerUV, texCoordVarying).rg - vec2(0.5, 0.5)); 17 | 18 | rgb = convert * yuv; 19 | 20 | gl_FragColor = vec4(rgb,1); 21 | 22 | } 23 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # LYFaceDetection 2 | A sample to recognize face with CoreImage and display based on OpenGL
3 | ![FaceDetection](https://github.com/LustySwimmer/LYFaceDetection/blob/master/FaceDetection.gif)
4 | You can get the result image use snapshot method in FaceDetectionView and save it to your iPhone 5 | ``` 6 | UIImage *image = [self.faceDetectionView snapshot]; 7 | if (image) { 8 | ALAuthorizationStatus authStatus = [ALAssetsLibrary authorizationStatus]; 9 | if (authStatus == ALAuthorizationStatusRestricted || authStatus == ALAuthorizationStatusDenied){ 10 | //无权限 11 | return; 12 | } 13 | [[[ALAssetsLibrary alloc] init] writeImageToSavedPhotosAlbum:image.CGImage metadata:nil completionBlock:^(NSURL *assetURL, NSError *error) { 14 | if (!error) { 15 |                NSLog(@"Image saved succeed"); 16 | } 17 | }]; 18 |    } 19 | ``` 20 | 21 | # 这是一个利用CoreImage和OpenGL实现的人脸识别的demo 22 | 更多详细的介绍请访问底部博客链接：
23 | [More details in blog](https://www.jianshu.com/p/028af518c781) 24 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## Build generated 6 | build/ 7 | DerivedData/ 8 | 9 | ## Various settings 10 | *.pbxuser 11 | !default.pbxuser 12 | *.mode1v3 13 | !default.mode1v3 14 | *.mode2v3 15 | !default.mode2v3 16 | *.perspectivev3 17 | !default.perspectivev3 18 | xcuserdata/ 19 | 20 | ## Other 21 | *.moved-aside 22 | *.xccheckout 23 | *.xcscmblueprint 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | *.ipa 28 | *.dSYM.zip 29 | *.dSYM 30 | 31 | # CocoaPods 32 | # 33 | # We recommend against adding the Pods directory to your .gitignore. However 34 | # you should judge for yourself, the pros and cons are mentioned at: 35 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 36 | # 37 | # Pods/ 38 | 39 | # Carthage 40 | # 41 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 42 | # Carthage/Checkouts 43 | 44 | Carthage/Build 45 | 46 | # fastlane 47 | # 48 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 49 | # screenshots whenever they are needed. 50 | # For more information about the recommended setup visit: 51 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 52 | 53 | fastlane/report.xml 54 | fastlane/Preview.html 55 | fastlane/screenshots 56 | fastlane/test_output 57 | 58 | # Code Injection 59 | # 60 | # After new code Injection tools there's a generated folder /iOSInjectionProject 61 | # https://github.com/johnno1962/injectionforxcode 62 | 63 | iOSInjectionProject/ 64 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleDisplayName 8 | LYFaceDetection 9 | CFBundleExecutable 10 | $(EXECUTABLE_NAME) 11 | CFBundleIdentifier 12 | $(PRODUCT_BUNDLE_IDENTIFIER) 13 | CFBundleInfoDictionaryVersion 14 | 6.0 15 | CFBundleName 16 | $(PRODUCT_NAME) 17 | CFBundlePackageType 18 | APPL 19 | CFBundleShortVersionString 20 | 1.0 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | NSCameraUsageDescription 26 | 请允许APP使用您的摄像头 27 | NSPhotoLibraryAddUsageDescription 28 | 请允许APP访问您的相册 29 | UILaunchStoryboardName 30 | LaunchScreen 31 | UIMainStoryboardFile 32 | Main 33 | UIRequiredDeviceCapabilities 34 | 35 | armv7 36 | 37 | UISupportedInterfaceOrientations 38 | 39 | UIInterfaceOrientationPortrait 40 | 41 | UISupportedInterfaceOrientations~ipad 42 | 43 | UIInterfaceOrientationPortrait 44 | UIInterfaceOrientationPortraitUpsideDown 45 | UIInterfaceOrientationLandscapeLeft 46 | UIInterfaceOrientationLandscapeRight 47 | 48 | 49 | 50 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/LYFaceDetector.m: -------------------------------------------------------------------------------- 1 | // 2 | // LYFaceDetector.m 3 | // OpenGLESPracticeDemo 4 | // 5 | // Created by LustySwimmer on 2018/1/18. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import "LYFaceDetector.h" 10 | 11 | @implementation LYFaceDetector 12 | 13 | + (void)detectCVPixelBuffer:(CVPixelBufferRef)pixelBuffer completionHandler:(void (^)(CIFaceFeature *, CIImage *))completion { 14 | if (pixelBuffer) { 15 | // [[CIImage alloc] initWithImage:image]; 16 | CIImage *ciImage = [[CIImage alloc] initWithCVPixelBuffer:pixelBuffer]; 17 | NSString *accuracy = CIDetectorAccuracyLow; 18 | NSDictionary *options = [NSDictionary dictionaryWithObject:accuracy forKey:CIDetectorAccuracy]; 19 | CIDetector *detector = [CIDetector detectorOfType:CIDetectorTypeFace context:nil options:options]; 20 | NSArray *featuresArray = [detector featuresInImage:ciImage options:nil]; 21 | CIFaceFeature *choosenFaceFeature = [self bestFaceFeaturesInFeatherArray:featuresArray]; 22 | !completion ?: completion(choosenFaceFeature,ciImage); 23 | } else { 24 | !completion ?: completion(nil, nil); 25 | } 26 | } 27 | 28 | + (CIFaceFeature *)bestFaceFeaturesInFeatherArray:(NSArray *)featureArray { 29 | //get the bestFaceFeature by the maxnum bounds Square size 30 | CGFloat maxFaceSquare = 0.0; 31 | CIFaceFeature * chooseFaceFeature = nil; 32 | for (CIFaceFeature * faceFeathre in featureArray) { 33 | CGRect bounds = faceFeathre.bounds; 34 | CGFloat currentFaceSqu = CGRectGetWidth(bounds)*CGRectGetHeight(bounds); 35 | if (currentFaceSqu > maxFaceSquare) { 36 | maxFaceSquare = currentFaceSqu; 37 | chooseFaceFeature = faceFeathre; 38 | } 39 | } 40 | return chooseFaceFeature; 41 | } 42 | 43 | @end 44 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "20x20", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "20x20", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "29x29", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "29x29", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "40x40", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "40x40", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "size" : "60x60", 36 | "scale" : "2x" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "size" : "60x60", 41 | "scale" : "3x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "20x20", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "20x20", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "29x29", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "29x29", 61 | "scale" : "2x" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "size" : "40x40", 66 | "scale" : "1x" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "size" : "40x40", 71 | "scale" : "2x" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "size" : "76x76", 76 | "scale" : "1x" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "size" : "76x76", 81 | "scale" : "2x" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "size" : "83.5x83.5", 86 | "scale" : "2x" 87 | } 88 | ], 89 | "info" : { 90 | "version" : 1, 91 | "author" : "xcode" 92 | } 93 | } -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import "AppDelegate.h" 10 | 11 | @interface AppDelegate () 12 | 13 | @end 14 | 15 | @implementation AppDelegate 16 | 17 | 18 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 19 | // Override point for customization after application launch. 20 | return YES; 21 | } 22 | 23 | 24 | - (void)applicationWillResignActive:(UIApplication *)application { 25 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 26 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 27 | } 28 | 29 | 30 | - (void)applicationDidEnterBackground:(UIApplication *)application { 31 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 32 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 33 | } 34 | 35 | 36 | - (void)applicationWillEnterForeground:(UIApplication *)application { 37 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 38 | } 39 | 40 | 41 | - (void)applicationDidBecomeActive:(UIApplication *)application { 42 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 43 | } 44 | 45 | 46 | - (void)applicationWillTerminate:(UIApplication *)application { 47 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 48 | } 49 | 50 | 51 | @end 52 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | #import "ViewController.h" 12 | #import "FaceDetectionView.h" 13 | #import "LYCameraManager.h" 14 | 15 | @interface ViewController () 16 | 17 | @property (nonatomic, strong) LYCameraManager *cameraManager; 18 | @property (weak, nonatomic) IBOutlet FaceDetectionView *faceDetectionView; 19 | 20 | @end 21 | 22 | @implementation ViewController 23 | 24 | - (void)viewDidLoad { 25 | [super viewDidLoad]; 26 | [self startCapture]; 27 | } 28 | 29 | - (IBAction)startCapture { 30 | self.cameraManager = [LYCameraManager cameraManagerWithSampleBufferDelegate:self]; 31 | } 32 | 33 | - (IBAction)switchCamera { 34 | if (!self.cameraManager) { return; } 35 | [self.cameraManager switchCamera]; 36 | [self animationCamera]; 37 | } 38 | 39 | - (IBAction)screenshot { 40 | if (!self.cameraManager) { return; } 41 | UIImage *image = [self.faceDetectionView snapshot]; 42 | if (image) { 43 | ALAuthorizationStatus authStatus = [ALAssetsLibrary authorizationStatus]; 44 | if (authStatus == ALAuthorizationStatusRestricted || authStatus == ALAuthorizationStatusDenied){ 45 | //无权限 46 | return; 47 | } 48 | [[[ALAssetsLibrary alloc] init] writeImageToSavedPhotosAlbum:image.CGImage metadata:nil completionBlock:^(NSURL *assetURL, NSError *error) { 49 | if (!error) { 50 | NSLog(@"图片保存成功"); 51 | } 52 | }]; 53 | } 54 | } 55 | 56 | - (void)animationCamera { 57 | CATransition *animation = [CATransition animation]; 58 | animation.duration = .5f; 59 | animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; 60 | animation.type = @"oglFlip"; 61 | animation.subtype = kCATransitionFromRight; 62 | [self.faceDetectionView.layer addAnimation:animation forKey:nil]; 63 | } 64 | 65 | #pragma mark - AVCaptureVideoDataOutputSampleBufferDelegate 66 | 67 | - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection { 68 | CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer); 69 | [self.faceDetectionView displayPixelBuffer:pixelBuffer]; 70 | 71 | } 72 | 73 | @end 74 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/Camera/LYCameraManager.m: -------------------------------------------------------------------------------- 1 | // 2 | // LYCameraManager.m 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import "LYCameraManager.h" 10 | 11 | @interface LYCameraManager() { 12 | dispatch_queue_t processQueue; 13 | } 14 | 15 | @property (nonatomic, strong) AVCaptureSession *captureSession; 16 | 17 | @property (nonatomic, strong) AVCaptureDeviceInput *captureDeviceInput; 18 | 19 | @property (nonatomic, strong) AVCaptureVideoDataOutput *captureDeviceOutput; 20 | 21 | @end 22 | 23 | @implementation LYCameraManager 24 | 25 | + (instancetype)cameraManagerWithSampleBufferDelegate:(id)delegate { 26 | return [[self alloc] initWithSampleBufferDelegate:delegate]; 27 | } 28 | 29 | - (instancetype)initWithSampleBufferDelegate:(id)delegate { 30 | if (self = [super init]) { 31 | self.captureSession = [[AVCaptureSession alloc] init]; 32 | [self.captureSession setSessionPreset:AVCaptureSessionPresetHigh]; 33 | 34 | AVCaptureDevice *captureDevice = nil; 35 | NSArray *captureDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]; 36 | for (AVCaptureDevice *device in captureDevices) { 37 | if (device.position == AVCaptureDevicePositionBack) { 38 | captureDevice = device; 39 | break; 40 | } 41 | } 42 | self.captureDeviceInput = [[AVCaptureDeviceInput alloc] initWithDevice:captureDevice error:nil]; 43 | 44 | if ([self.captureSession canAddInput:self.captureDeviceInput]) { 45 | [self.captureSession addInput:self.captureDeviceInput]; 46 | } 47 | 48 | self.captureDeviceOutput = [[AVCaptureVideoDataOutput alloc] init]; 49 | [self.captureDeviceOutput setAlwaysDiscardsLateVideoFrames:YES]; 50 | 51 | processQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0); 52 | [self.captureDeviceOutput setVideoSettings:[NSDictionary dictionaryWithObject:[NSNumber numberWithInt:kCVPixelFormatType_420YpCbCr8BiPlanarFullRange] forKey:(id)kCVPixelBufferPixelFormatTypeKey]]; 53 | [self.captureDeviceOutput setSampleBufferDelegate:delegate queue:processQueue]; 54 | 55 | if ([self.captureSession canAddOutput:self.captureDeviceOutput]) { 56 | [self.captureSession addOutput:self.captureDeviceOutput]; 57 | } 58 | 59 | AVCaptureConnection *captureConnection = [self.captureDeviceOutput connectionWithMediaType:AVMediaTypeVideo]; 60 | [captureConnection setVideoOrientation:AVCaptureVideoOrientationPortrait]; 61 | 62 | [self.captureSession startRunning]; 63 | } 64 | return self; 65 | } 66 | 67 | - (void)switchCamera { 68 | NSUInteger cameraCount = [[AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo] count]; 69 | if (cameraCount > 1) { 70 | AVCaptureDevice *newCamera = nil; 71 | AVCaptureDeviceInput *newInput = nil; 72 | AVCaptureDevicePosition position = [[self.captureDeviceInput device] position]; 73 | if (position == AVCaptureDevicePositionFront){ 74 | newCamera = [self cameraWithPosition:AVCaptureDevicePositionBack]; 75 | }else { 76 | newCamera = [self cameraWithPosition:AVCaptureDevicePositionFront]; 77 | } 78 | newInput = [AVCaptureDeviceInput deviceInputWithDevice:newCamera error:nil]; 79 | if (newInput != nil) { 80 | [self.captureSession beginConfiguration]; 81 | [self.captureSession removeInput:self.captureDeviceInput]; 82 | if ([self.captureSession canAddInput:newInput]) { 83 | [self.captureSession addInput:newInput]; 84 | self.captureDeviceInput = newInput; 85 | }else { 86 | [self.captureSession addInput:self.captureDeviceInput]; 87 | } 88 | AVCaptureConnection *captureConnection = [self.captureDeviceOutput connectionWithMediaType:AVMediaTypeVideo]; 89 | [captureConnection setVideoOrientation:AVCaptureVideoOrientationPortrait]; 90 | [self.captureSession commitConfiguration]; 91 | } 92 | } 93 | } 94 | 95 | - (AVCaptureDevice *)cameraWithPosition:(AVCaptureDevicePosition)position{ 96 | NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]; 97 | for ( AVCaptureDevice *device in devices ) 98 | if ( device.position == position ) return device; 99 | return nil; 100 | } 101 | 102 | @end 103 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/OpenGL/LYShaderManager.m: -------------------------------------------------------------------------------- 1 | // 2 | // LYShaderManager.m 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | 9 | #import "LYShaderManager.h" 10 | 11 | @implementation LYShaderManager 12 | 13 | - (instancetype)initWithVertexShaderFileName:(NSString *)vertexFileName fragmentFileName:(NSString *)fragmentFileName { 14 | if (self = [super init]) { 15 | self.program = glCreateProgram(); 16 | NSURL *vertexPath = [[NSBundle mainBundle] URLForResource:vertexFileName withExtension:@"vsh"]; 17 | NSURL *fragmentPath = [[NSBundle mainBundle] URLForResource:fragmentFileName withExtension:@"fsh"]; 18 | [self compileShadersWithVertexFile:vertexPath fragmentFile:fragmentPath]; 19 | } 20 | return self; 21 | } 22 | 23 | - (void)compileShadersWithVertexFile:(NSURL *)vertexPath fragmentFile:(NSURL *)fragmentPath { 24 | GLuint vertexShader, fragmentShader; 25 | if (![self compileShader:&vertexShader type:GL_VERTEX_SHADER URL:vertexPath] || ![self compileShader:&fragmentShader type:GL_FRAGMENT_SHADER URL:fragmentPath]) { 26 | return; 27 | } 28 | if (![self linkProgram]) { 29 | [self deleteShader:&vertexShader]; 30 | [self deleteShader:&fragmentShader]; 31 | return; 32 | } 33 | [self detachAndDeleteShader:&vertexShader]; 34 | [self detachAndDeleteShader:&fragmentShader]; 35 | [self useProgram]; 36 | } 37 | 38 | - (BOOL)compileShader:(GLuint *)shader type:(GLenum)type URL:(NSURL *)URL 39 | { 40 | NSError *error; 41 | NSString *sourceString = [[NSString alloc] initWithContentsOfURL:URL encoding:NSUTF8StringEncoding error:&error]; 42 | if (sourceString == nil) { 43 | NSLog(@"Failed to load vertex shader: %@", [error localizedDescription]); 44 | return NO; 45 | } 46 | 47 | GLint status; 48 | const GLchar *source; 49 | source = (GLchar *)[sourceString UTF8String]; 50 | 51 | *shader = glCreateShader(type); 52 | glShaderSource(*shader, 1, &source, NULL); 53 | glCompileShader(*shader); 54 | 55 | #if defined(DEBUG) 56 | GLint logLength; 57 | glGetShaderiv(*shader, GL_INFO_LOG_LENGTH, &logLength); 58 | if (logLength > 0) { 59 | GLchar *log = (GLchar *)malloc(logLength); 60 | glGetShaderInfoLog(*shader, logLength, &logLength, log); 61 | NSLog(@"Shader compile log:\n%s", log); 62 | free(log); 63 | } 64 | #endif 65 | 66 | glGetShaderiv(*shader, GL_COMPILE_STATUS, &status); 67 | if (status == 0) { 68 | glDeleteShader(*shader); 69 | return NO; 70 | } 71 | // 编译成功后，吸附到程序中去 72 | glAttachShader(self.program, *shader); 73 | 74 | return YES; 75 | } 76 | 77 | - (BOOL)linkProgram 78 | { 79 | GLint status; 80 | glLinkProgram(_program); 81 | 82 | #if defined(DEBUG) 83 | GLint logLength; 84 | glGetProgramiv(_program, GL_INFO_LOG_LENGTH, &logLength); 85 | if (logLength > 0) { 86 | GLchar *log = (GLchar *)malloc(logLength); 87 | glGetProgramInfoLog(_program, logLength, &logLength, log); 88 | NSLog(@"Program link log:\n%s", log); 89 | free(log); 90 | } 91 | #endif 92 | 93 | glGetProgramiv(_program, GL_LINK_STATUS, &status); 94 | if (status == 0) { 95 | return NO; 96 | } 97 | 98 | return YES; 99 | } 100 | 101 | - (BOOL)validateProgram 102 | { 103 | GLint logLength, status; 104 | 105 | glValidateProgram(_program); 106 | glGetProgramiv(_program, GL_INFO_LOG_LENGTH, &logLength); 107 | if (logLength > 0) { 108 | GLchar *log = (GLchar *)malloc(logLength); 109 | glGetProgramInfoLog(_program, logLength, &logLength, log); 110 | NSLog(@"Program validate log:\n%s", log); 111 | free(log); 112 | } 113 | 114 | glGetProgramiv(_program, GL_VALIDATE_STATUS, &status); 115 | if (status == 0) { 116 | return NO; 117 | } 118 | 119 | return YES; 120 | } 121 | 122 | - (void)bindAttribLocation:(GLuint)index andAttribName:(GLchar*)name{ 123 | glBindAttribLocation(self.program, index, name); 124 | 125 | } 126 | 127 | - (void)deleteShader:(GLuint*)shader{ 128 | if (*shader){ 129 | glDeleteShader(*shader); 130 | *shader = 0; 131 | } 132 | } 133 | 134 | - (GLint)getUniformLocation:(const GLchar*) name{ 135 | return glGetUniformLocation(self.program, name); 136 | } 137 | 138 | - (GLuint)getAttributeLocation:(const GLchar *)name { 139 | return glGetAttribLocation(self.program, name); 140 | } 141 | 142 | -(void)detachAndDeleteShader:(GLuint *)shader{ 143 | if (*shader){ 144 | glDetachShader(self.program, *shader); 145 | glDeleteShader(*shader); 146 | *shader = 0; 147 | } 148 | } 149 | 150 | -(void)deleteProgram{ 151 | if (self.program){ 152 | glDeleteProgram(self.program); 153 | self.program = 0; 154 | } 155 | } 156 | 157 | -(void)useProgram{ 158 | glUseProgram(self.program); 159 | } 160 | 161 | -(void)dealloc{ 162 | [self deleteProgram]; 163 | } 164 | 165 | @end 166 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 35 | 42 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection/FaceDetectionView.m: -------------------------------------------------------------------------------- 1 | // 2 | // FaceDetectionView.m 3 | // LYFaceDetection 4 | // 5 | // Created by LustySwimmer on 2018/3/6. 6 | // Copyright © 2018年 LustySwimmer. All rights reserved. 7 | // 8 | #import 9 | #import 10 | #import "FaceDetectionView.h" 11 | #import "FaceDetectionView.h" 12 | #import "LYShaderManager.h" 13 | #import "LYFaceDetector.h" 14 | 15 | // Uniform index. 16 | enum 17 | { 18 | UNIFORM_Y, 19 | UNIFORM_UV, 20 | UNIFORM_ROTATE_MATRIX, 21 | UNIFORM_TEMP_INPUT_IMG_TEXTURE, 22 | NUM_UNIFORMS 23 | }; 24 | static GLint glViewUniforms[NUM_UNIFORMS]; 25 | 26 | // Attribute index. 27 | enum 28 | { 29 | ATTRIB_VERTEX, 30 | ATTRIB_TEXCOORD, 31 | ATTRIB_TEMP_VERTEX, 32 | ATTRIB_TEMP_TEXCOORD, 33 | NUM_ATTRIBUTES 34 | }; 35 | static GLint glViewAttributes[NUM_ATTRIBUTES]; 36 | 37 | @interface FaceDetectionView() { 38 | GLint _backingWidth; 39 | GLint _backingHeight; 40 | 41 | CVOpenGLESTextureRef _lumaTexture; 42 | CVOpenGLESTextureRef _chromaTexture; 43 | CVOpenGLESTextureCacheRef _videoTextureCache; 44 | dispatch_semaphore_t _lock; 45 | } 46 | 47 | 48 | @property (nonatomic, weak) CAEAGLLayer *eaglLayer; 49 | 50 | @property (nonatomic, strong) EAGLContext *context; 51 | 52 | @property (nonatomic, strong) LYShaderManager *shaderManager; 53 | 54 | @property (nonatomic, strong) LYShaderManager *textureManager; 55 | 56 | @property (nonatomic, assign) GLuint frameBuffer; 57 | 58 | @property (nonatomic, assign) GLuint renderBuffer; 59 | 60 | @property (nonatomic, assign) GLuint myTexture; 61 | 62 | @end 63 | 64 | @implementation FaceDetectionView 65 | 66 | + (Class)layerClass { 67 | return [CAEAGLLayer class]; 68 | } 69 | 70 | - (instancetype)initWithCoder:(NSCoder *)coder 71 | { 72 | self = [super initWithCoder:coder]; 73 | if (self) { 74 | [self _initialSetup]; 75 | } 76 | return self; 77 | } 78 | 79 | - (void)_initialSetup { 80 | _lock = dispatch_semaphore_create(1); 81 | [self setupLayer]; 82 | [self setupContext]; 83 | [self loadShaders]; 84 | [self setupRenderBuffer]; 85 | [self setupFrameBuffer]; 86 | _myTexture = [self setupTexture:@"test.jpg"]; 87 | if (!_videoTextureCache) { 88 | CVReturn err = CVOpenGLESTextureCacheCreate(kCFAllocatorDefault, NULL, _context, NULL, &_videoTextureCache); 89 | if (err != noErr) { 90 | NSLog(@"Error at CVOpenGLESTextureCacheCreate %d", err); 91 | return; 92 | } 93 | } 94 | } 95 | 96 | - (void)dealloc 97 | { 98 | [self cleanUpTextures]; 99 | 100 | if(_videoTextureCache) { 101 | CFRelease(_videoTextureCache); 102 | } 103 | } 104 | 105 | - (void)setupLayer { 106 | self.eaglLayer = (CAEAGLLayer *)self.layer; 107 | self.eaglLayer.drawableProperties = @{kEAGLDrawablePropertyRetainedBacking : @(NO),kEAGLDrawablePropertyColorFormat : kEAGLColorFormatRGBA8}; 108 | self.eaglLayer.opaque = true; 109 | self.contentScaleFactor = [UIScreen mainScreen].scale; 110 | } 111 | 112 | - (void)setupContext { 113 | self.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; 114 | if (!self.context) { 115 | NSLog(@"initialize failed"); 116 | exit(1); 117 | } 118 | if (![EAGLContext setCurrentContext:self.context]) { 119 | NSLog(@"failed to setCurrentContext"); 120 | exit(1); 121 | } 122 | } 123 | 124 | - (void)loadShaders { 125 | //一定要设置视口大小 126 | CGFloat scale = [UIScreen mainScreen].scale; 127 | glViewport(self.frame.origin.x * scale, self.frame.origin.y * scale, self.frame.size.width * scale, self.frame.size.height * scale); 128 | self.shaderManager = [[LYShaderManager alloc] initWithVertexShaderFileName:@"FaceDetectionShader" fragmentFileName:@"FaceDetectionShader"]; 129 | glViewAttributes[ATTRIB_VERTEX] = [self.shaderManager getAttributeLocation:"aPosition"]; 130 | glViewAttributes[ATTRIB_TEXCOORD] = [self.shaderManager getAttributeLocation:"aTexCoordinate"]; 131 | glViewUniforms[UNIFORM_Y] = [self.shaderManager getUniformLocation:"SamplerY"]; 132 | glViewUniforms[UNIFORM_UV] = [self.shaderManager getUniformLocation:"SamplerUV"]; 133 | glViewUniforms[UNIFORM_ROTATE_MATRIX] = [self.shaderManager getUniformLocation:"rotateMatrix"]; 134 | 135 | self.textureManager = [[LYShaderManager alloc] initWithVertexShaderFileName:@"FaceTextureShader" fragmentFileName:@"FaceTextureShader"]; 136 | glViewAttributes[ATTRIB_TEMP_VERTEX] = [self.textureManager getAttributeLocation:"aPosition"]; 137 | glViewAttributes[ATTRIB_TEMP_TEXCOORD] = [self.textureManager getAttributeLocation:"aTexCoordinate"]; 138 | glViewUniforms[UNIFORM_TEMP_INPUT_IMG_TEXTURE] = [self.textureManager getUniformLocation:"inputTexture"]; 139 | 140 | } 141 | 142 | - (void)setupRenderBuffer { 143 | glGenRenderbuffers(1, &_renderBuffer); 144 | glBindRenderbuffer(GL_RENDERBUFFER, _renderBuffer); 145 | [self.context renderbufferStorage:GL_RENDERBUFFER fromDrawable:self.eaglLayer]; 146 | glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &_backingWidth); 147 | glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &_backingHeight); 148 | } 149 | 150 | - (void)setupFrameBuffer { 151 | glGenFramebuffers(1, &_frameBuffer); 152 | glBindFramebuffer(GL_FRAMEBUFFER, _frameBuffer); 153 | glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, _renderBuffer); 154 | } 155 | 156 | - (GLuint)setupTexture:(NSString *)fileName { 157 | CGImageRef spriteImage = [UIImage imageNamed:fileName].CGImage; 158 | if (!spriteImage) { 159 | NSLog(@"Failed to load image %@", fileName); 160 | exit(1); 161 | } 162 | 163 | size_t width = CGImageGetWidth(spriteImage); 164 | size_t height = CGImageGetHeight(spriteImage); 165 | 166 | GLubyte *spriteData = (GLubyte *)calloc(width * height * 4, sizeof(GLubyte)); 167 | 168 | CGContextRef context = CGBitmapContextCreate(spriteData, width, height, 8, width * 4, CGImageGetColorSpace(spriteImage), kCGImageAlphaPremultipliedLast); 169 | CGContextTranslateCTM(context, 0, height); 170 | CGContextScaleCTM (context, 1.0, -1.0); 171 | CGContextDrawImage(context, CGRectMake(0, 0, width, height), spriteImage); 172 | 173 | CGContextRelease(context); 174 | 175 | GLuint texture; 176 | glActiveTexture(GL_TEXTURE2); 177 | glGenTextures(1, &texture); 178 | glBindTexture(GL_TEXTURE_2D, texture); 179 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); 180 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); 181 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 182 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 183 | 184 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (int32_t)width, (int32_t)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, spriteData); 185 | free(spriteData); 186 | return texture; 187 | } 188 | 189 | - (void)displayPixelBuffer:(CVPixelBufferRef)pixelBuffer { 190 | if (pixelBuffer != NULL) { 191 | 192 | int width = (int)CVPixelBufferGetWidth(pixelBuffer); 193 | int height = (int)CVPixelBufferGetHeight(pixelBuffer); 194 | 195 | if (!_videoTextureCache) { 196 | NSLog(@"NO Video Texture Cache"); 197 | return; 198 | } 199 | if ([EAGLContext currentContext] != _context) { 200 | [EAGLContext setCurrentContext:_context]; 201 | } 202 | 203 | [self cleanUpTextures]; 204 | 205 | glActiveTexture(GL_TEXTURE0); 206 | 207 | CVReturn err; 208 | err = CVOpenGLESTextureCacheCreateTextureFromImage(kCFAllocatorDefault, 209 | _videoTextureCache, 210 | pixelBuffer, 211 | NULL, 212 | GL_TEXTURE_2D, 213 | GL_RED_EXT, 214 | width, 215 | height, 216 | GL_RED_EXT, 217 | GL_UNSIGNED_BYTE, 218 | 0, 219 | &_lumaTexture); 220 | 221 | if (err) { 222 | NSLog(@"Error at CVOpenGLESTextureCacheCreateTextureFromImage %d", err); 223 | } 224 | 225 | glBindTexture(CVOpenGLESTextureGetTarget(_lumaTexture), CVOpenGLESTextureGetName(_lumaTexture)); 226 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 227 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 228 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 229 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 230 | 231 | // UV-plane. 232 | glActiveTexture(GL_TEXTURE1); 233 | err = CVOpenGLESTextureCacheCreateTextureFromImage(kCFAllocatorDefault, 234 | _videoTextureCache, 235 | pixelBuffer, 236 | NULL, 237 | GL_TEXTURE_2D, 238 | GL_RG_EXT, 239 | width / 2, 240 | height / 2, 241 | GL_RG_EXT, 242 | GL_UNSIGNED_BYTE, 243 | 1, 244 | &_chromaTexture); 245 | if (err) { 246 | NSLog(@"Error at CVOpenGLESTextureCacheCreateTextureFromImage %d", err); 247 | } 248 | 249 | glBindTexture(CVOpenGLESTextureGetTarget(_chromaTexture), CVOpenGLESTextureGetName(_chromaTexture)); 250 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 251 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 252 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 253 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 254 | 255 | glBindFramebuffer(GL_FRAMEBUFFER, _frameBuffer); 256 | 257 | glViewport(0, 0, _backingWidth, _backingHeight); 258 | 259 | } 260 | 261 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 262 | glEnable(GL_BLEND); 263 | glClearColor(0, 0, 0, 1.0); 264 | glClear(GL_COLOR_BUFFER_BIT); 265 | 266 | glBindFramebuffer(GL_FRAMEBUFFER, _frameBuffer); 267 | [self.shaderManager useProgram]; 268 | glUniform1i(glViewUniforms[UNIFORM_Y], 0); 269 | glUniform1i(glViewUniforms[UNIFORM_UV], 1); 270 | 271 | glUniformMatrix4fv(glViewUniforms[UNIFORM_ROTATE_MATRIX], 1, GL_FALSE, GLKMatrix4MakeXRotation(M_PI).m); 272 | 273 | GLfloat quadVertexData[] = { 274 | -1, -1, 275 | 1, -1 , 276 | -1, 1, 277 | 1, 1, 278 | }; 279 | 280 | // 更新顶点数据 281 | glVertexAttribPointer(glViewAttributes[ATTRIB_VERTEX], 2, GL_FLOAT, 0, 0, quadVertexData); 282 | glEnableVertexAttribArray(glViewAttributes[ATTRIB_VERTEX]); 283 | 284 | GLfloat quadTextureData[] = { // 正常坐标 285 | 0, 0, 286 | 1, 0, 287 | 0, 1, 288 | 1, 1 289 | }; 290 | 291 | glVertexAttribPointer(glViewAttributes[ATTRIB_TEXCOORD], 2, GL_FLOAT, GL_FALSE, 0, quadTextureData); 292 | glEnableVertexAttribArray(glViewAttributes[ATTRIB_TEXCOORD]); 293 | 294 | glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); 295 | 296 | [LYFaceDetector detectCVPixelBuffer:pixelBuffer completionHandler:^(CIFaceFeature *result, CIImage *ciImage) { 297 | if (result) { 298 | [self renderTempTexture:result ciImage:ciImage]; 299 | } 300 | }]; 301 | 302 | glBindRenderbuffer(GL_RENDERBUFFER, _renderBuffer); 303 | 304 | if ([EAGLContext currentContext] == _context) { 305 | [_context presentRenderbuffer:GL_RENDERBUFFER]; 306 | } 307 | } 308 | 309 | - (void)renderTempTexture:(CIFaceFeature *)faceFeature ciImage:(CIImage *)ciImage { 310 | dispatch_semaphore_wait(_lock, DISPATCH_TIME_FOREVER); 311 | //得到图片的尺寸 312 | CGSize ciImageSize = [ciImage extent].size; 313 | //初始化transform 314 | CGAffineTransform transform = CGAffineTransformScale(CGAffineTransformIdentity, 1, -1); 315 | transform = CGAffineTransformTranslate(transform,0,-ciImageSize.height); 316 | // 实现坐标转换 317 | CGSize viewSize =self.layer.bounds.size; 318 | CGFloat scale = MIN(viewSize.width / ciImageSize.width,viewSize.height / ciImageSize.height); 319 | 320 | CGFloat offsetX = (viewSize.width - ciImageSize.width * scale) / 2; 321 | CGFloat offsetY = (viewSize.height - ciImageSize.height * scale) / 2; 322 | // 缩放 323 | CGAffineTransform scaleTransform = CGAffineTransformMakeScale(scale, scale); 324 | //获取人脸的frame 325 | CGRect faceViewBounds = CGRectApplyAffineTransform(faceFeature.bounds, transform); 326 | // 修正 327 | faceViewBounds = CGRectApplyAffineTransform(faceViewBounds,scaleTransform); 328 | faceViewBounds.origin.x += offsetX; 329 | faceViewBounds.origin.y += offsetY; 330 | 331 | 332 | NSLog(@"face frame after:%@",NSStringFromCGRect(faceViewBounds)); 333 | [self.textureManager useProgram]; 334 | glBindTexture(GL_TEXTURE_2D, _myTexture); 335 | glUniform1i(glViewUniforms[UNIFORM_TEMP_INPUT_IMG_TEXTURE], 2); 336 | 337 | CGFloat midX = CGRectGetMidX(self.layer.bounds); 338 | CGFloat midY = CGRectGetMidY(self.layer.bounds); 339 | 340 | CGFloat originX = CGRectGetMinX(faceViewBounds); 341 | CGFloat originY = CGRectGetMinY(faceViewBounds); 342 | CGFloat maxX = CGRectGetMaxX(faceViewBounds); 343 | CGFloat maxY = CGRectGetMaxY(faceViewBounds); 344 | 345 | //贴图顶点 346 | GLfloat minVertexX = (originX - midX) / midX; 347 | GLfloat minVertexY = (midY - maxY) / midY; 348 | GLfloat maxVertexX = (maxX - midX) / midX; 349 | GLfloat maxVertexY = (midY - originY) / midY; 350 | GLfloat quadData[] = { 351 | minVertexX, minVertexY, 352 | maxVertexX, minVertexY, 353 | minVertexX, maxVertexY, 354 | maxVertexX, maxVertexY, 355 | }; 356 | 357 | glVertexAttribPointer(glViewAttributes[ATTRIB_TEMP_VERTEX], 2, GL_FLOAT, GL_FALSE, 0, quadData); 358 | glEnableVertexAttribArray(glViewAttributes[ATTRIB_TEMP_VERTEX]); 359 | 360 | GLfloat quadTextureData[] = { // 正常坐标 361 | 0, 0, 362 | 1, 0, 363 | 0, 1, 364 | 1, 1 365 | }; 366 | glVertexAttribPointer(glViewAttributes[ATTRIB_TEMP_TEXCOORD], 2, GL_FLOAT, GL_FALSE, 0, quadTextureData); 367 | glEnableVertexAttribArray(glViewAttributes[ATTRIB_TEMP_TEXCOORD]); 368 | 369 | glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); 370 | dispatch_semaphore_signal(_lock); 371 | } 372 | 373 | - (UIImage *)snapshot { 374 | UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0.0); 375 | [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:NO]; 376 | UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); 377 | UIGraphicsEndImageContext(); 378 | return image; 379 | } 380 | 381 | - (void)cleanUpTextures { 382 | if (_lumaTexture) { 383 | CFRelease(_lumaTexture); 384 | _lumaTexture = NULL; 385 | } 386 | 387 | if (_chromaTexture) { 388 | CFRelease(_chromaTexture); 389 | _chromaTexture = NULL; 390 | } 391 | 392 | // Periodic texture cache flush every frame 393 | CVOpenGLESTextureCacheFlush(_videoTextureCache, 0); 394 | } 395 | 396 | @end 397 | -------------------------------------------------------------------------------- /LYFaceDetection/LYFaceDetection.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 6 | objectVersion = 48; 7 | objects = { 8 | 9 | /* Begin PBXBuildFile section */ 10 | 854F6058204E4FDE0054FC3B /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 854F6057204E4FDE0054FC3B /* AppDelegate.m */; }; 11 | 854F605B204E4FDE0054FC3B /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 854F605A204E4FDE0054FC3B /* ViewController.m */; }; 12 | 854F605E204E4FDE0054FC3B /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 854F605C204E4FDE0054FC3B /* Main.storyboard */; }; 13 | 854F6060204E4FDE0054FC3B /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 854F605F204E4FDE0054FC3B /* Assets.xcassets */; }; 14 | 854F6063204E4FDE0054FC3B /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; 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