質問編集履歴
2
test
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UIImageへの変換はできた
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@@ -6,405 +6,383 @@
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が、imageBufferがCoreDataに保存できません。
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###該当のソースコード
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```Swift3
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// ViewController
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// 撮影するコード
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if let output = myImageOutput {
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DispatchQueue.global().async {
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let connection = output.connection(withMediaType: AVMediaTypeVideo)
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let settings = [-2.0, 0.0, 2.0].map {
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(bias: Float) -> AVCaptureAutoExposureBracketedStillImageSettings in AVCaptureAutoExposureBracketedStillImageSettings.autoExposureSettings(withExposureTargetBias: bias)
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}
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output.captureStillImageBracketAsynchronously(from: connection, withSettingsArray: settings, completionHandler: { (imageBuffer, settings, error) in
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//print("imageBuffer: \(imageBuffer)")
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if error == nil {
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let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageBuffer)!
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if let image = UIImage(data: imageData) {
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UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil) }
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}
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else {
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print("error while capturing still image: \(error)")
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}
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})
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}
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}
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// 毎フレームをCoreDataに保存する処理
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func writeBuffer(imageBuffer: CVPixelBuffer) -> NSData {
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CVPixelBufferLockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: 0))
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let bufferSize = CVPixelBufferGetDataSize(imageBuffer)
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let width = CVPixelBufferGetWidth(imageBuffer)
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let height = CVPixelBufferGetHeight(imageBuffer)
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let bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer)
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let baseAddress = CVPixelBufferGetBaseAddress(imageBuffer)
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let colorSpace = CGColorSpaceCreateDeviceRGB()
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var data: NSData = NSData(bytes: baseAddress, length: bufferSize)
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CVPixelBufferUnlockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: 0))
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let appDelegate: AppDelegate = UIApplication.shared.delegate as! AppDelegate
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let myContext: NSManagedObjectContext = appDelegate.managedObjectContext
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let myEntity: NSEntityDescription! = NSEntityDescription.entity(forEntityName: "ImageData", in: myContext)
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let newData = ImageData(entity: myEntity, insertInto: myContext)
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newData.imageData? = data
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do {
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try myContext.save()
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} catch {
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print(error)
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}
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return data
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}
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```
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###試したこと
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プロジェクト作成時にUse CoreDataにチェック入れてなかったので、新しいファイル(CoreData > DataModel)を作成し、.xcdatamodeledファイルを追加しました。
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EntityはimageDataにし、TypeはBinary Dataです。
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その後、Editor > Create NSManagedObject Subclassでエンティティモデルコードを生成しました。
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そのあと、appDelegateに以下のコードを書き加えました
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```ここに言語を入力
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lazy var applicationDocumentsDirectory: NSURL = {
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let urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
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return urls[urls.count-1] as NSURL
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}()
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lazy var managedObjectModel: NSManagedObjectModel = {
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// The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model.
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let modelURL = Bundle.main.url(forResource: "ImageDataBase", withExtension: "momd")!
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return NSManagedObjectModel(contentsOf: modelURL)!
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}()
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lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator = {
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// Create the coordinator and store
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let coordinator = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel)
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let url = self.applicationDocumentsDirectory.appendingPathComponent("SingleViewCoreData.sqlite")
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var failureReason = "There was an error creating or loading the application's saved data."
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do {
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try coordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: nil)
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} catch {
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// Report any error we got.
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var dict = [String: AnyObject]()
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dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data" as AnyObject?
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dict[NSLocalizedFailureReasonErrorKey] = failureReason as AnyObject?
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dict[NSUnderlyingErrorKey] = error as NSError
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let wrappedError = NSError(domain: "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
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NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
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abort()
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}
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return coordinator
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}()
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lazy var managedObjectContext: NSManagedObjectContext = {
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let coordinator = self.persistentStoreCoordinator
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var managedObjectContext = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)
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managedObjectContext.persistentStoreCoordinator = coordinator
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return managedObjectContext
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}()
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@available(iOS 10.0, *)
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lazy var persistentContainer: NSPersistentContainer = {
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let container = NSPersistentContainer(name: "coredataTest")
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container.loadPersistentStores(completionHandler: { (storeDescription, error) in
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if let error = error as NSError? {
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fatalError("Unresolved error \(error), \(error.userInfo)")
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}
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})
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return container
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}()
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func saveContext () {
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290
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291
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292
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293
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if #available(iOS 10.0, *) {
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294
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295
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296
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297
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let context = persistentContainer.viewContext
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298
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299
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300
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301
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if context.hasChanges {
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303
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305
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do {
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307
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309
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try context.save()
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311
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312
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313
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} catch {
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315
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316
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317
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let nserror = error as NSError
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318
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319
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320
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fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
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323
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324
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325
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}
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326
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327
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328
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329
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}
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330
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331
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332
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333
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} else {
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334
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335
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336
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337
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if managedObjectContext.hasChanges {
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338
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339
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+
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340
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+
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341
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do {
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342
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343
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+
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344
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+
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345
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try managedObjectContext.save()
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346
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+
|
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347
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+
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348
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+
|
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349
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+
} catch {
|
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350
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351
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352
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+
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353
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let nserror = error as NSError
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354
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+
|
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355
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+
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356
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+
|
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357
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NSLog("Unresolved error \(nserror), \(nserror.userInfo)")
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358
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+
|
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359
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+
|
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360
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+
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361
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+
abort()
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362
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+
|
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363
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+
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364
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+
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365
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}
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366
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+
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367
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368
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369
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+
}
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370
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371
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+
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372
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+
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373
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+
}
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374
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+
|
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375
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+
|
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376
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+
|
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377
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+
}
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22
378
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|
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23
379
|
```
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|
24
380
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25
381
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26
382
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|
|
27
|
-
|
|
28
|
-
|
|
29
|
-
###該当のソースコード
|
|
30
|
-
|
|
31
|
-
```Swift3
|
|
32
|
-
|
|
33
|
-
// ViewController
|
|
34
|
-
|
|
35
|
-
// 撮影するコード
|
|
36
|
-
|
|
37
|
-
if let output = myImageOutput {
|
|
38
|
-
|
|
39
|
-
DispatchQueue.global().async {
|
|
40
|
-
|
|
41
|
-
let connection = output.connection(withMediaType: AVMediaTypeVideo)
|
|
42
|
-
|
|
43
|
-
let settings = [-2.0, 0.0, 2.0].map {
|
|
44
|
-
|
|
45
|
-
(bias: Float) -> AVCaptureAutoExposureBracketedStillImageSettings in AVCaptureAutoExposureBracketedStillImageSettings.autoExposureSettings(withExposureTargetBias: bias)
|
|
46
|
-
|
|
47
|
-
}
|
|
48
|
-
|
|
49
|
-
output.captureStillImageBracketAsynchronously(from: connection, withSettingsArray: settings, completionHandler: { (imageBuffer, settings, error) in
|
|
50
|
-
|
|
51
|
-
|
|
52
|
-
|
|
53
|
-
//print("imageBuffer: \(imageBuffer)")
|
|
54
|
-
|
|
55
|
-
|
|
56
|
-
|
|
57
|
-
if error == nil {
|
|
58
|
-
|
|
59
|
-
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageBuffer)!
|
|
60
|
-
|
|
61
|
-
if let image = UIImage(data: imageData) {
|
|
62
|
-
|
|
63
|
-
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil) }
|
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64
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-
|
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65
|
-
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|
66
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-
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|
67
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}
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68
|
-
|
|
69
|
-
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|
70
|
-
|
|
71
|
-
else {
|
|
72
|
-
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73
|
-
|
|
74
|
-
|
|
75
|
-
print("error while capturing still image: \(error)")
|
|
76
|
-
|
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77
|
-
|
|
78
|
-
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79
|
-
}
|
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80
|
-
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81
|
-
})
|
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82
|
-
|
|
83
|
-
}
|
|
84
|
-
|
|
85
|
-
}
|
|
86
|
-
|
|
87
|
-
|
|
88
|
-
|
|
89
|
-
// 毎フレームをCoreDataに保存する処理
|
|
90
|
-
|
|
91
|
-
func writeBuffer(imageBuffer: CVPixelBuffer) -> NSData {
|
|
92
|
-
|
|
93
|
-
CVPixelBufferLockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: 0))
|
|
94
|
-
|
|
95
|
-
let bufferSize = CVPixelBufferGetDataSize(imageBuffer)
|
|
96
|
-
|
|
97
|
-
let width = CVPixelBufferGetWidth(imageBuffer)
|
|
98
|
-
|
|
99
|
-
let height = CVPixelBufferGetHeight(imageBuffer)
|
|
100
|
-
|
|
101
|
-
let bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer)
|
|
102
|
-
|
|
103
|
-
let baseAddress = CVPixelBufferGetBaseAddress(imageBuffer)
|
|
104
|
-
|
|
105
|
-
let colorSpace = CGColorSpaceCreateDeviceRGB()
|
|
106
|
-
|
|
107
|
-
var data: NSData = NSData(bytes: baseAddress, length: bufferSize)
|
|
108
|
-
|
|
109
|
-
CVPixelBufferUnlockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: 0))
|
|
110
|
-
|
|
111
|
-
let appDelegate: AppDelegate = UIApplication.shared.delegate as! AppDelegate
|
|
112
|
-
|
|
113
|
-
let myContext: NSManagedObjectContext = appDelegate.managedObjectContext
|
|
114
|
-
|
|
115
|
-
|
|
116
|
-
|
|
117
|
-
let myEntity: NSEntityDescription! = NSEntityDescription.entity(forEntityName: "ImageData", in: myContext)
|
|
118
|
-
|
|
119
|
-
let newData = ImageData(entity: myEntity, insertInto: myContext)
|
|
120
|
-
|
|
121
|
-
newData.imageData? = data
|
|
122
|
-
|
|
123
|
-
do {
|
|
124
|
-
|
|
125
|
-
try myContext.save()
|
|
126
|
-
|
|
127
|
-
} catch {
|
|
128
|
-
|
|
129
|
-
print(error)
|
|
130
|
-
|
|
131
|
-
}
|
|
132
|
-
|
|
133
|
-
return data
|
|
134
|
-
|
|
135
|
-
}
|
|
136
|
-
|
|
137
|
-
|
|
138
|
-
|
|
139
|
-
```
|
|
140
|
-
|
|
141
|
-
|
|
142
|
-
|
|
143
|
-
###試したこと
|
|
144
|
-
|
|
145
|
-
プロジェクト作成時にUse CoreDataにチェック入れてなかったので、新しいファイル(CoreData > DataModel)を作成し、.xcdatamodeledファイルを追加しました。
|
|
146
|
-
|
|
147
|
-
EntityはimageDataにし、TypeはBinary Dataです。
|
|
148
|
-
|
|
149
|
-
その後、Editor > Create NSManagedObject Subclassでエンティティモデルコードを生成しました。
|
|
150
|
-
|
|
151
|
-
そのあと、appDelegateに以下のコードを書き加えました
|
|
152
|
-
|
|
153
|
-
```ここに言語を入力
|
|
154
|
-
|
|
155
|
-
lazy var applicationDocumentsDirectory: NSURL = {
|
|
156
|
-
|
|
157
|
-
let urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
|
|
158
|
-
|
|
159
|
-
return urls[urls.count-1] as NSURL
|
|
160
|
-
|
|
161
|
-
}()
|
|
162
|
-
|
|
163
|
-
lazy var managedObjectModel: NSManagedObjectModel = {
|
|
164
|
-
|
|
165
|
-
// The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model.
|
|
166
|
-
|
|
167
|
-
let modelURL = Bundle.main.url(forResource: "ImageDataBase", withExtension: "momd")!
|
|
168
|
-
|
|
169
|
-
return NSManagedObjectModel(contentsOf: modelURL)!
|
|
170
|
-
|
|
171
|
-
}()
|
|
172
|
-
|
|
173
|
-
lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator = {
|
|
174
|
-
|
|
175
|
-
// Create the coordinator and store
|
|
176
|
-
|
|
177
|
-
let coordinator = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel)
|
|
178
|
-
|
|
179
|
-
let url = self.applicationDocumentsDirectory.appendingPathComponent("SingleViewCoreData.sqlite")
|
|
180
|
-
|
|
181
|
-
var failureReason = "There was an error creating or loading the application's saved data."
|
|
182
|
-
|
|
183
|
-
do {
|
|
184
|
-
|
|
185
|
-
try coordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: nil)
|
|
186
|
-
|
|
187
|
-
} catch {
|
|
188
|
-
|
|
189
|
-
// Report any error we got.
|
|
190
|
-
|
|
191
|
-
var dict = [String: AnyObject]()
|
|
192
|
-
|
|
193
|
-
dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data" as AnyObject?
|
|
194
|
-
|
|
195
|
-
dict[NSLocalizedFailureReasonErrorKey] = failureReason as AnyObject?
|
|
196
|
-
|
|
197
|
-
dict[NSUnderlyingErrorKey] = error as NSError
|
|
198
|
-
|
|
199
|
-
|
|
200
|
-
|
|
201
|
-
let wrappedError = NSError(domain: "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
|
|
202
|
-
|
|
203
|
-
|
|
204
|
-
|
|
205
|
-
NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
|
|
206
|
-
|
|
207
|
-
|
|
208
|
-
|
|
209
|
-
abort()
|
|
210
|
-
|
|
211
|
-
|
|
212
|
-
|
|
213
|
-
}
|
|
214
|
-
|
|
215
|
-
|
|
216
|
-
|
|
217
|
-
|
|
218
|
-
|
|
219
|
-
|
|
220
|
-
|
|
221
|
-
return coordinator
|
|
222
|
-
|
|
223
|
-
|
|
224
|
-
|
|
225
|
-
}()
|
|
226
|
-
|
|
227
|
-
|
|
228
|
-
|
|
229
|
-
|
|
230
|
-
|
|
231
|
-
|
|
232
|
-
|
|
233
|
-
lazy var managedObjectContext: NSManagedObjectContext = {
|
|
234
|
-
|
|
235
|
-
|
|
236
|
-
|
|
237
|
-
let coordinator = self.persistentStoreCoordinator
|
|
238
|
-
|
|
239
|
-
|
|
240
|
-
|
|
241
|
-
var managedObjectContext = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)
|
|
242
|
-
|
|
243
|
-
|
|
244
|
-
|
|
245
|
-
managedObjectContext.persistentStoreCoordinator = coordinator
|
|
246
|
-
|
|
247
|
-
|
|
248
|
-
|
|
249
|
-
return managedObjectContext
|
|
250
|
-
|
|
251
|
-
|
|
252
|
-
|
|
253
|
-
}()
|
|
254
|
-
|
|
255
|
-
|
|
256
|
-
|
|
257
|
-
|
|
258
|
-
|
|
259
|
-
@available(iOS 10.0, *)
|
|
260
|
-
|
|
261
|
-
|
|
262
|
-
|
|
263
|
-
lazy var persistentContainer: NSPersistentContainer = {
|
|
264
|
-
|
|
265
|
-
|
|
266
|
-
|
|
267
|
-
let container = NSPersistentContainer(name: "coredataTest")
|
|
268
|
-
|
|
269
|
-
|
|
270
|
-
|
|
271
|
-
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
|
|
272
|
-
|
|
273
|
-
|
|
274
|
-
|
|
275
|
-
if let error = error as NSError? {
|
|
276
|
-
|
|
277
|
-
|
|
278
|
-
|
|
279
|
-
fatalError("Unresolved error \(error), \(error.userInfo)")
|
|
280
|
-
|
|
281
|
-
|
|
282
|
-
|
|
283
|
-
}
|
|
284
|
-
|
|
285
|
-
|
|
286
|
-
|
|
287
|
-
})
|
|
288
|
-
|
|
289
|
-
|
|
290
|
-
|
|
291
|
-
return container
|
|
292
|
-
|
|
293
|
-
|
|
294
|
-
|
|
295
|
-
}()
|
|
296
|
-
|
|
297
|
-
|
|
298
|
-
|
|
299
|
-
|
|
300
|
-
|
|
301
|
-
|
|
302
|
-
|
|
303
|
-
func saveContext () {
|
|
304
|
-
|
|
305
|
-
|
|
306
|
-
|
|
307
|
-
if #available(iOS 10.0, *) {
|
|
308
|
-
|
|
309
|
-
|
|
310
|
-
|
|
311
|
-
let context = persistentContainer.viewContext
|
|
312
|
-
|
|
313
|
-
|
|
314
|
-
|
|
315
|
-
if context.hasChanges {
|
|
316
|
-
|
|
317
|
-
|
|
318
|
-
|
|
319
|
-
do {
|
|
320
|
-
|
|
321
|
-
|
|
322
|
-
|
|
323
|
-
try context.save()
|
|
324
|
-
|
|
325
|
-
|
|
326
|
-
|
|
327
|
-
} catch {
|
|
328
|
-
|
|
329
|
-
|
|
330
|
-
|
|
331
|
-
let nserror = error as NSError
|
|
332
|
-
|
|
333
|
-
|
|
334
|
-
|
|
335
|
-
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
|
|
336
|
-
|
|
337
|
-
|
|
338
|
-
|
|
339
|
-
}
|
|
340
|
-
|
|
341
|
-
|
|
342
|
-
|
|
343
|
-
}
|
|
344
|
-
|
|
345
|
-
|
|
346
|
-
|
|
347
|
-
} else {
|
|
348
|
-
|
|
349
|
-
|
|
350
|
-
|
|
351
|
-
if managedObjectContext.hasChanges {
|
|
352
|
-
|
|
353
|
-
|
|
354
|
-
|
|
355
|
-
do {
|
|
356
|
-
|
|
357
|
-
|
|
358
|
-
|
|
359
|
-
try managedObjectContext.save()
|
|
360
|
-
|
|
361
|
-
|
|
362
|
-
|
|
363
|
-
} catch {
|
|
364
|
-
|
|
365
|
-
|
|
366
|
-
|
|
367
|
-
let nserror = error as NSError
|
|
368
|
-
|
|
369
|
-
|
|
370
|
-
|
|
371
|
-
NSLog("Unresolved error \(nserror), \(nserror.userInfo)")
|
|
372
|
-
|
|
373
|
-
|
|
374
|
-
|
|
375
|
-
abort()
|
|
376
|
-
|
|
377
|
-
|
|
378
|
-
|
|
379
|
-
}
|
|
380
|
-
|
|
381
|
-
|
|
382
|
-
|
|
383
|
-
}
|
|
384
|
-
|
|
385
|
-
|
|
386
|
-
|
|
387
|
-
}
|
|
388
|
-
|
|
389
|
-
|
|
390
|
-
|
|
391
|
-
}
|
|
392
|
-
|
|
393
|
-
```
|
|
394
|
-
|
|
395
|
-
|
|
396
|
-
|
|
397
383
|
###補足情報(言語/FW/ツール等のバージョンなど)
|
|
398
384
|
|
|
399
|
-
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageBuffer)!
|
|
400
|
-
|
|
401
|
-
if let image = UIImage(data: imageData) {
|
|
402
|
-
|
|
403
|
-
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
|
|
404
|
-
|
|
405
|
-
を消すと、CoreDataに保存は出来ていませんが、エラー無く撮影を終えることが出来ます。
|
|
406
|
-
|
|
407
|
-
|
|
385
|
+
print("imageBuffer: \(imageBuffer)")とすると、imageBuffuerの中には値も入っています。
|
|
408
386
|
|
|
409
387
|
CoreDataに保存できているかどうかの確認は、Window>Devicesから実機simulator、該当アプリを選択して表示されるフォルダに特に何も追加されていないので保存できていないと判断しました。
|
|
410
388
|
|