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SwiftでAVFoundationを使用してビデオを録画する方法を理解しようとしています。私はカスタムカメラを作成する限りは持っていますが、静止画を撮る方法だけを考え出したので、ビデオの記録方法を理解することはできません。あなたが私にこのことを理解させてくれることを願っています。AVFoundation、Swiftでビデオを録画するホールドボタン3
は私がビデオを録画するtakePhotoButtonを保持したいと私は私の現在のスチル写真をプレビューする場所、それがプレビューされます。あなたの助けが本当に私のプロジェクトを続けるのに役立ちます。どうもありがとう！
import UIKit
import AVFoundation
@available(iOS 10.0, *)
class CameraViewController: UIViewController,AVCaptureVideoDataOutputSampleBufferDelegate {
let photoSettings = AVCapturePhotoSettings()
var audioPlayer = AVAudioPlayer()
var captureSession = AVCaptureSession()
var videoDeviceInput: AVCaptureDeviceInput!
var previewLayer = AVCaptureVideoPreviewLayer()
var frontCamera: Bool = false
var captureDevice:AVCaptureDevice!
var takePhoto = false
override func viewDidLoad() {
super.viewDidLoad()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
prepareCamera()
}
func prepareCamera() {
captureSession.sessionPreset = AVCaptureSessionPresetPhoto
if let availableDevices = AVCaptureDeviceDiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: AVMediaTypeVideo, position: .back).devices {
captureDevice = availableDevices.first
beginSession()
}
}
func frontCamera(_ front: Bool){
let devices = AVCaptureDevice.devices()
do{
try captureSession.removeInput(AVCaptureDeviceInput(device:captureDevice!))
}catch{
print("Error")
}
for device in devices!{
if((device as AnyObject).hasMediaType(AVMediaTypeVideo)){
if front{
if (device as AnyObject).position == AVCaptureDevicePosition.front {
captureDevice = device as? AVCaptureDevice
do{
try captureSession.addInput(AVCaptureDeviceInput(device: captureDevice!))
}catch{}
break
}
}else{
if (device as AnyObject).position == AVCaptureDevicePosition.back {
captureDevice = device as? AVCaptureDevice
do{
try captureSession.addInput(AVCaptureDeviceInput(device: captureDevice!))
}catch{}
break
}
}
}
}
}
func beginSession() {
do {
let captureDeviceInput = try AVCaptureDeviceInput(device: captureDevice)
if let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession) {
self.previewLayer = previewLayer
containerView.layer.addSublayer(previewLayer as? CALayer ?? CALayer())
self.previewLayer.frame = self.view.layer.frame
self.previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
previewLayer.connection.videoOrientation = AVCaptureVideoOrientation.portrait
captureSession.startRunning()
let dataOutput = AVCaptureVideoDataOutput()
dataOutput.videoSettings = [(kCVPixelBufferPixelFormatTypeKey as NSString):NSNumber(value:kCVPixelFormatType_32BGRA)]
dataOutput.alwaysDiscardsLateVideoFrames = true
if captureSession.canAddOutput(dataOutput) {
captureSession.addOutput(dataOutput)
photoSettings.isHighResolutionPhotoEnabled = true
photoSettings.isAutoStillImageStabilizationEnabled = true
}
captureSession.commitConfiguration()
let queue = DispatchQueue(label: "com.NightOut.captureQueue")
dataOutput.setSampleBufferDelegate(self, queue: queue)
}
}
@IBAction func takePhoto(_ sender: Any) {
takePhoto = true
photoSettings.isHighResolutionPhotoEnabled = true
photoSettings.isAutoStillImageStabilizationEnabled = true
}
func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {
if takePhoto {
takePhoto = false
if let image = self.getImageFromSampleBuffer(buffer: sampleBuffer) {
let photoVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PhotoVC") as! PhotoPreviewViewController
photoVC.takenPhoto = image
DispatchQueue.main.async {
self.present(photoVC, animated: true, completion: {
self.stopCaptureSession()
})
}
}
}
}
func getImageFromSampleBuffer (buffer:CMSampleBuffer) -> UIImage? {
if let pixelBuffer = CMSampleBufferGetImageBuffer(buffer) {
let ciImage = CIImage(cvPixelBuffer: pixelBuffer)
let context = CIContext()
let imageRect = CGRect(x: 0, y: 0, width: CVPixelBufferGetWidth(pixelBuffer), height: CVPixelBufferGetHeight(pixelBuffer))
if let image = context.createCGImage(ciImage, from: imageRect) {
return UIImage(cgImage: image, scale: UIScreen.main.scale, orientation: .leftMirrored)
}
}
return nil
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
self.captureSession.stopRunning()
}
func stopCaptureSession() {
self.captureSession.stopRunning()
if let inputs = captureSession.inputs as? [AVCaptureDeviceInput] {
for input in inputs {
self.captureSession.removeInput(input)
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
@IBAction func DismissButtonAction(_ sender: UIButton) {
UIView.animate(withDuration: 0.1, animations: {
self.DismissButton.transform = CGAffineTransform.identity.scaledBy(x: 0.8, y: 0.8)
}, completion: { (finish) in
UIView.animate(withDuration: 0.1, animations: {
self.DismissButton.transform = CGAffineTransform.identity
})
})
performSegue(withIdentifier: "Segue", sender: nil)
}
}
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HoldDown()メソッドの内部で、このコードをお持ちですか？ありがとう – RandomGeek