├── .gitignore
├── AVCaptureSessionSample.xcodeproj
    ├── project.pbxproj
    └── xcuserdata
    │   └── linhcn.xcuserdatad
    │       ├── xcdebugger
    │           └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │           ├── AVCaptureSessionSample.xcscheme
    │           └── xcschememanagement.plist
├── AVCaptureSessionSample
    ├── AppDelegate.swift
    ├── Assets.xcassets
    │   └── AppIcon.appiconset
    │   │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── Info.plist
    └── ViewController.swift
├── LICENSE
└── README.md


/.gitignore:
--------------------------------------------------------------------------------
1 | AVCaptureSessionSample.xcodeproj/project.xcworkspace/contents.xcworkspacedata
2 | AVCaptureSessionSample.xcodeproj/xcuserdata/linh.chu.xcuserdatad/xcschemes/xcschememanagement.plist
3 | 


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/AVCaptureSessionSample/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  AVCaptureSessionSample
 4 | //
 5 | //  Created by Linh Chu on 3/7/17.
 6 | //  Copyright © 2017 linhcn. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 |     var window: UIWindow?
15 | 
16 | 
17 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
18 |         // Override point for customization after application launch.
19 |         return true
20 |     }
21 | 
22 |     func applicationWillResignActive(_ application: UIApplication) {
23 |         // 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.
24 |         // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
25 |     }
26 | 
27 |     func applicationDidEnterBackground(_ application: UIApplication) {
28 |         // 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.
29 |         // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
30 |     }
31 | 
32 |     func applicationWillEnterForeground(_ application: UIApplication) {
33 |         // 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.
34 |     }
35 | 
36 |     func applicationDidBecomeActive(_ application: UIApplication) {
37 |         // 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.
38 |     }
39 | 
40 |     func applicationWillTerminate(_ application: UIApplication) {
41 |         // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
42 |     }
43 | 
44 | 
45 | }
46 | 
47 | 


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/AVCaptureSessionSample/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "29x29",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "29x29",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "40x40",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "40x40",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "60x60",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "60x60",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "ipad",
35 |       "size" : "29x29",
36 |       "scale" : "1x"
37 |     },
38 |     {
39 |       "idiom" : "ipad",
40 |       "size" : "29x29",
41 |       "scale" : "2x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "40x40",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "40x40",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "76x76",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "76x76",
61 |       "scale" : "2x"
62 |     }
63 |   ],
64 |   "info" : {
65 |     "version" : 1,
66 |     "author" : "xcode"
67 |   }
68 | }


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/AVCaptureSessionSample/Base.lproj/LaunchScreen.storyboard:
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 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11134" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11106"/>
 5 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 6 |     </dependencies>
 7 |     <scenes>
 8 |         <!--View Controller-->
 9 |         <scene sceneID="EHf-IW-A2E">
10 |             <objects>
11 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
12 |                     <layoutGuides>
13 |                         <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
14 |                         <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
15 |                     </layoutGuides>
16 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
17 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
18 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
19 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
20 |                     </view>
21 |                 </viewController>
22 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
23 |             </objects>
24 |             <point key="canvasLocation" x="53" y="375"/>
25 |         </scene>
26 |     </scenes>
27 | </document>
28 | 


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/AVCaptureSessionSample/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12120" systemVersion="16E195" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="t4e-o9-xiT">
 3 |     <device id="retina4_7" orientation="portrait">
 4 |         <adaptation id="fullscreen"/>
 5 |     </device>
 6 |     <dependencies>
 7 |         <deployment identifier="iOS"/>
 8 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12088"/>
 9 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
10 |     </dependencies>
11 |     <scenes>
12 |         <!--View Controller-->
13 |         <scene sceneID="tne-QT-ifu">
14 |             <objects>
15 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="SQ_A" customModuleProvider="target" sceneMemberID="viewController">
16 |                     <layoutGuides>
17 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
18 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
19 |                     </layoutGuides>
20 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
21 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
22 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
23 |                         <subviews>
24 |                             <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="tC1-No-lr4">
25 |                                 <rect key="frame" x="62" y="397" width="250" height="250"/>
26 |                                 <constraints>
27 |                                     <constraint firstAttribute="width" constant="250" id="58A-TB-u5o"/>
28 |                                     <constraint firstAttribute="height" constant="250" id="phn-OE-6EX"/>
29 |                                 </constraints>
30 |                             </imageView>
31 |                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="A8B-g0-V63">
32 |                                 <rect key="frame" x="62" y="72" width="250" height="250"/>
33 |                                 <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
34 |                                 <constraints>
35 |                                     <constraint firstAttribute="height" constant="250" id="7Nv-5b-3Cb"/>
36 |                                     <constraint firstAttribute="width" constant="250" id="DsC-iy-7zM"/>
37 |                                 </constraints>
38 |                             </view>
39 |                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Kj3-VO-M09">
40 |                                 <rect key="frame" x="142" y="330" width="91" height="30"/>
41 |                                 <constraints>
42 |                                     <constraint firstAttribute="width" constant="91" id="2Bb-Uk-3qJ"/>
43 |                                     <constraint firstAttribute="height" constant="30" id="VF7-yn-wfZ"/>
44 |                                 </constraints>
45 |                                 <state key="normal" title="Take photo"/>
46 |                                 <connections>
47 |                                     <action selector="capturePhoto:" destination="BYZ-38-t0r" eventType="touchUpInside" id="H3M-8u-iH4"/>
48 |                                 </connections>
49 |                             </button>
50 |                         </subviews>
51 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
52 |                         <constraints>
53 |                             <constraint firstItem="A8B-g0-V63" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="1ev-oT-hpy"/>
54 |                             <constraint firstItem="tC1-No-lr4" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="NKw-nR-rGV"/>
55 |                             <constraint firstItem="Kj3-VO-M09" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="SgO-ku-Xf4"/>
56 |                             <constraint firstItem="tC1-No-lr4" firstAttribute="top" secondItem="Kj3-VO-M09" secondAttribute="bottom" constant="37" id="WDo-Tb-SFE"/>
57 |                             <constraint firstItem="A8B-g0-V63" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" constant="8" id="pFO-oh-W4l"/>
58 |                             <constraint firstItem="Kj3-VO-M09" firstAttribute="top" secondItem="A8B-g0-V63" secondAttribute="bottom" constant="8" id="tQo-lk-fNj"/>
59 |                         </constraints>
60 |                     </view>
61 |                     <navigationItem key="navigationItem" id="Rd6-yu-R8t"/>
62 |                     <connections>
63 |                         <outlet property="capturedImage" destination="tC1-No-lr4" id="n7H-Mq-A2l"/>
64 |                         <outlet property="photoButton" destination="Kj3-VO-M09" id="WHk-uG-Lhv"/>
65 |                         <outlet property="previewView" destination="A8B-g0-V63" id="nw0-Oz-TV5"/>
66 |                     </connections>
67 |                 </viewController>
68 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
69 |             </objects>
70 |             <point key="canvasLocation" x="964" y="36.431784107946029"/>
71 |         </scene>
72 |         <!--Navigation Controller-->
73 |         <scene sceneID="gqY-rG-Eqh">
74 |             <objects>
75 |                 <navigationController automaticallyAdjustsScrollViewInsets="NO" id="t4e-o9-xiT" sceneMemberID="viewController">
76 |                     <toolbarItems/>
77 |                     <navigationBar key="navigationBar" contentMode="scaleToFill" id="pqD-7Z-r79">
78 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="44"/>
79 |                         <autoresizingMask key="autoresizingMask"/>
80 |                     </navigationBar>
81 |                     <nil name="viewControllers"/>
82 |                     <connections>
83 |                         <segue destination="BYZ-38-t0r" kind="relationship" relationship="rootViewController" id="QnG-Qu-Uzk"/>
84 |                     </connections>
85 |                 </navigationController>
86 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="JUD-M2-GzJ" userLabel="First Responder" sceneMemberID="firstResponder"/>
87 |             </objects>
88 |             <point key="canvasLocation" x="114" y="36"/>
89 |         </scene>
90 |     </scenes>
91 | </document>
92 | 


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/AVCaptureSessionSample/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>en</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>NSCameraUsageDescription</key>
24 | 	<string>$(PRODUCT_NAME) would like to use camera</string>
25 | 	<key>UILaunchStoryboardName</key>
26 | 	<string>LaunchScreen</string>
27 | 	<key>UIMainStoryboardFile</key>
28 | 	<string>Main</string>
29 | 	<key>UIRequiredDeviceCapabilities</key>
30 | 	<array>
31 | 		<string>armv7</string>
32 | 	</array>
33 | 	<key>UISupportedInterfaceOrientations</key>
34 | 	<array>
35 | 		<string>UIInterfaceOrientationPortrait</string>
36 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
37 | 		<string>UIInterfaceOrientationLandscapeRight</string>
38 | 	</array>
39 | 	<key>UISupportedInterfaceOrientations~ipad</key>
40 | 	<array>
41 | 		<string>UIInterfaceOrientationPortrait</string>
42 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
43 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
44 | 		<string>UIInterfaceOrientationLandscapeRight</string>
45 | 	</array>
46 | </dict>
47 | </plist>
48 | 


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/AVCaptureSessionSample/ViewController.swift:
--------------------------------------------------------------------------------
  1 | import UIKit
  2 | import AVFoundation
  3 | 
  4 | class ViewController: UIViewController {
  5 |     
  6 |     @IBOutlet weak var capturedImage: UIImageView!
  7 |     @IBOutlet weak var previewView: UIView!
  8 |     @IBOutlet weak var photoButton: UIButton!
  9 |     
 10 |     let session = AVCaptureSession()
 11 |     let photoOutput = AVCapturePhotoOutput()
 12 |     let sessionQueue = DispatchQueue(label: "session queue",
 13 |                                      attributes: [],
 14 |                                      target: nil)
 15 |     
 16 |     var previewLayer : AVCaptureVideoPreviewLayer!
 17 |     var videoDeviceInput: AVCaptureDeviceInput!
 18 |     var setupResult: SessionSetupResult = .success
 19 |     
 20 |     enum SessionSetupResult {
 21 |         case success
 22 |         case notAuthorized
 23 |         case configurationFailed
 24 |     }
 25 |     
 26 |     override func viewDidLoad() {
 27 |         super.viewDidLoad()
 28 |         
 29 |        checkAuthorization()
 30 |         
 31 |         /*
 32 |          Setup the capture session.
 33 |          In general it is not safe to mutate an AVCaptureSession or any of its
 34 |          inputs, outputs, or connections from multiple threads at the same time.
 35 |          
 36 |          Why not do all of this on the main queue?
 37 |          Because AVCaptureSession.startRunning() is a blocking call which can
 38 |          take a long time. We dispatch session setup to the sessionQueue so
 39 |          that the main queue isn't blocked, which keeps the UI responsive.
 40 |          */
 41 |         sessionQueue.async { [unowned self] in
 42 |             self.configureSession()
 43 |         }
 44 |     }
 45 |     
 46 |     override func viewWillAppear(_ animated: Bool) {
 47 |         super.viewWillAppear(animated)
 48 |         
 49 |         sessionQueue.async {
 50 |             switch self.setupResult {
 51 |             case .success:
 52 |                 // Only start the session running if setup succeeded.
 53 |                 DispatchQueue.main.async { [unowned self] in
 54 |                     self.previewLayer = AVCaptureVideoPreviewLayer(session: self.session)
 55 |                     self.previewLayer.frame = self.previewView.bounds
 56 |                     self.previewView.layer.addSublayer(self.previewLayer)
 57 |                     self.session.startRunning()
 58 |                 }
 59 |                 
 60 |             case .notAuthorized:
 61 |                 DispatchQueue.main.async { [unowned self] in
 62 |                     let changePrivacySetting = "AVCam doesn't have permission to use the camera, please change privacy settings"
 63 |                     let message = NSLocalizedString(changePrivacySetting, comment: "Alert message when the user has denied access to the camera")
 64 |                     let alertController = UIAlertController(title: "AVCam", message: message, preferredStyle: .alert)
 65 |                     
 66 |                     alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: "Alert OK button"),
 67 |                                                             style: .cancel,
 68 |                                                             handler: nil))
 69 |                     
 70 |                     alertController.addAction(UIAlertAction(title: NSLocalizedString("Settings", comment: "Alert button to open Settings"),
 71 |                                                             style: .`default`,
 72 |                                                             handler: { _ in
 73 |                                                                 UIApplication.shared.open(URL(string: UIApplicationOpenSettingsURLString)!, options: [:], completionHandler: nil)
 74 |                     }))
 75 |                     
 76 |                     self.present(alertController, animated: true, completion: nil)
 77 |                 }
 78 |                 
 79 |             case .configurationFailed:
 80 |                 DispatchQueue.main.async { [unowned self] in
 81 |                     let alertMsg = "Alert message when something goes wrong during capture session configuration"
 82 |                     let message = NSLocalizedString("Unable to capture media", comment: alertMsg)
 83 |                     let alertController = UIAlertController(title: "AVCam", message: message, preferredStyle: .alert)
 84 |                     
 85 |                     alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: "Alert OK button"),
 86 |                                                             style: .cancel,
 87 |                                                             handler: nil))
 88 |                     
 89 |                     self.present(alertController, animated: true, completion: nil)
 90 |                 }
 91 |             }
 92 |         }
 93 |     }
 94 |     
 95 |     override func viewWillDisappear(_ animated: Bool) {
 96 |         sessionQueue.async { [unowned self] in
 97 |             if self.setupResult == .success {
 98 |                 self.session.stopRunning()
 99 |             }
100 |         }
101 |         
102 |         super.viewWillDisappear(animated)
103 |     }
104 |     
105 |     // MARK: Session Management
106 |     
107 |     func checkAuthorization() {
108 |         /*
109 |          Check video authorization status. Video access is required and audio
110 |          access is optional. If audio access is denied, audio is not recorded
111 |          during movie recording.
112 |          */
113 |         switch AVCaptureDevice.authorizationStatus(for: AVMediaType.video) {
114 |         case .authorized:
115 |             // The user has previously granted access to the camera.
116 |             break
117 |             
118 |         case .notDetermined:
119 |             /*
120 |              The user has not yet been presented with the option to grant
121 |              video access. We suspend the session queue to delay session
122 |              setup until the access request has completed.
123 |              
124 |              Note that audio access will be implicitly requested when we
125 |              create an AVCaptureDeviceInput for audio during session setup.
126 |              */
127 |             sessionQueue.suspend()
128 |             AVCaptureDevice.requestAccess(for: AVMediaType.video, completionHandler: { [unowned self] granted in
129 |                 if !granted {
130 |                     self.setupResult = .notAuthorized
131 |                 }
132 |                 self.sessionQueue.resume()
133 |             })
134 |             
135 |         default:
136 |             // The user has previously denied access.
137 |             setupResult = .notAuthorized
138 |         }
139 |     }
140 |     
141 |     private func configureSession() {
142 |         if setupResult != .success {
143 |             return
144 |         }
145 |         
146 |         session.beginConfiguration()
147 |         session.sessionPreset = AVCaptureSession.Preset.photo
148 |         
149 |         // Add video input.
150 |         do {
151 |             var defaultVideoDevice: AVCaptureDevice?
152 | 
153 |             // Choose the back dual camera if available, otherwise default to a wide angle camera.
154 |             let dualCameraDeviceType: AVCaptureDevice.DeviceType
155 |             if #available(iOS 11, *) {
156 |                 dualCameraDeviceType = .builtInDualCamera
157 |             } else {
158 |                 dualCameraDeviceType = .builtInDuoCamera
159 |             }
160 | 
161 |             if let dualCameraDevice = AVCaptureDevice.default(dualCameraDeviceType, for: AVMediaType.video, position: .back) {
162 |                 defaultVideoDevice = dualCameraDevice
163 |             } else if let backCameraDevice = AVCaptureDevice.default(AVCaptureDevice.DeviceType.builtInWideAngleCamera, for: AVMediaType.video, position: .back) {
164 |                 // If the back dual camera is not available, default to the back wide angle camera.
165 |                 defaultVideoDevice = backCameraDevice
166 |             } else if let frontCameraDevice = AVCaptureDevice.default(AVCaptureDevice.DeviceType.builtInWideAngleCamera, for: AVMediaType.video, position: .front) {                
167 |                 /*
168 |                  In some cases where users break their phones, the back wide angle camera is not available.
169 |                  In this case, we should default to the front wide angle camera.
170 |                  */
171 |                 defaultVideoDevice = frontCameraDevice
172 |             }
173 |             
174 |             let videoDeviceInput = try AVCaptureDeviceInput(device: defaultVideoDevice!)
175 |             
176 |             if session.canAddInput(videoDeviceInput) {
177 |                 session.addInput(videoDeviceInput)
178 |                 self.videoDeviceInput = videoDeviceInput
179 |                 
180 |             } else {
181 |                 print("Could not add video device input to the session")
182 |                 setupResult = .configurationFailed
183 |                 session.commitConfiguration()
184 |                 return
185 |             }
186 |         } catch {
187 |             print("Could not create video device input: \(error)")
188 |             setupResult = .configurationFailed
189 |             session.commitConfiguration()
190 |             return
191 |         }
192 |         
193 |         // Add photo output.
194 |         if session.canAddOutput(photoOutput) {
195 |             session.addOutput(photoOutput)
196 |             
197 |             photoOutput.isHighResolutionCaptureEnabled = true
198 |             photoOutput.isLivePhotoCaptureEnabled = photoOutput.isLivePhotoCaptureSupported
199 |         } else {
200 |             print("Could not add photo output to the session")
201 |             setupResult = .configurationFailed
202 |             session.commitConfiguration()
203 |             return
204 |         }
205 |         
206 |         session.commitConfiguration()
207 |     }
208 |     
209 |     @IBAction private func capturePhoto(_ sender: UIButton) {
210 |         let photoSettings = AVCapturePhotoSettings()
211 |         photoSettings.isHighResolutionPhotoEnabled = true
212 |         if self.videoDeviceInput.device.isFlashAvailable {
213 |             photoSettings.flashMode = .auto
214 |         }
215 | 
216 |         if let firstAvailablePreviewPhotoPixelFormatTypes = photoSettings.availablePreviewPhotoPixelFormatTypes.first {
217 |             photoSettings.previewPhotoFormat = [kCVPixelBufferPixelFormatTypeKey as String: firstAvailablePreviewPhotoPixelFormatTypes]
218 |         }
219 | 
220 |         photoOutput.capturePhoto(with: photoSettings, delegate: self)
221 |     }
222 | }
223 | 
224 |   // MARK: - AVCapturePhotoCaptureDelegate Methods
225 | 
226 | extension ViewController: AVCapturePhotoCaptureDelegate {
227 | 
228 |     func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhoto photoSampleBuffer: CMSampleBuffer?, previewPhoto previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) {
229 | 
230 |         if let error = error {
231 |             print("Error capturing photo: \(error)")
232 |         } else {
233 |             if let sampleBuffer = photoSampleBuffer, let previewBuffer = previewPhotoSampleBuffer, let dataImage = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: sampleBuffer, previewPhotoSampleBuffer: previewBuffer) {
234 | 
235 |                 if let image = UIImage(data: dataImage) {
236 |                     self.capturedImage.image = image
237 |                 }
238 |             }
239 |         }
240 | 
241 |     }
242 | 
243 |     @available(iOS 11.0, *)
244 |     func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
245 | 
246 |         guard let data = photo.fileDataRepresentation(),
247 |               let image =  UIImage(data: data)  else {
248 |                 return
249 |         }
250 | 
251 |         self.capturedImage.image = image
252 |     }
253 | }
254 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2017 Linh Chu
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/README.md:
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1 | # AVCamSample
2 | A Swift example of using AVCaptureSession in iOS 10, which has been simplified from [AVCam-iOS](https://developer.apple.com/library/content/samplecode/AVCam/Listings/Swift_AVCam_CameraViewController_swift.html) Apple sample.
3 | 


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