Ufdjrw

I'm facing problem while recording the video.

The flow is like :-

1. I'll launch my camera screen.


2. will record a video then will move to create post screen.


3. This flow works fine for first time. But when I came back to camera from create post screen, and again try to record, It suddenly stops the recording as soon as i start and throws an error " there is no such file".

Any help would be appreciated.
Thanks.

var captureSession: AVCaptureSession?
var capturePhotoOutput: AVCapturePhotoOutput?
var videoPreviewLayer: AVCaptureVideoPreviewLayer?
var userSelectedFlashMode: AVCaptureDevice.FlashMode = .off

override func viewDidAppear(_ animated: Bool) 
 super.viewDidAppear(animated)
 captureSession = AVCaptureSession()
 captureSession?.beginConfiguration()
 let microphone = AVCaptureDevice.default(for: AVMediaType.audio)
 do 
 let micInput = try AVCaptureDeviceInput(device: microphone!)
 if (captureSession?.canAddInput(micInput))! 
 captureSession?.addInput(micInput)
 
 catch 
 print("SRL Error setting device audio input.")
 
 guard let captureDevice = AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaType.video, position: .back) else 
 fatalError("No video device found")
 
 do 
 let input = try AVCaptureDeviceInput(device: captureDevice)
 captureSession?.addInput(input)
 capturePhotoOutput = AVCapturePhotoOutput()
 capturePhotoOutput?.isHighResolutionCaptureEnabled = true
 captureSession?.addOutput(capturePhotoOutput!)
 captureSession?.sessionPreset = .high
 movieFileOutput.maxRecordedDuration = CMTimeMake(value: Int64(59), timescale: 1)
 if (captureSession?.canAddOutput(movieFileOutput))! 
 captureSession?.addOutput(movieFileOutput)
 
 self.captureSession?.commitConfiguration()
 let captureMetadataOutput = AVCaptureMetadataOutput()
 captureSession?.addOutput(captureMetadataOutput)
 captureMetadataOutput.setMetadataObjectsDelegate(self as? AVCaptureMetadataOutputObjectsDelegate, queue: DispatchQueue.main)
 captureMetadataOutput.metadataObjectTypes = [AVMetadataObject.ObjectType.qr]
 videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession!)
 videoPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
 videoPreviewLayer?.frame = previewLayer.layer.bounds
 previewLayer.layer.addSublayer(videoPreviewLayer!)
 captureSession?.startRunning()
 self.btnCapture.isUserInteractionEnabled = true
 catch let error 
 print(error.localizedDescription)
 



override func viewWillDisappear(_ animated: Bool) 
 super.viewWillDisappear(animated)
 if let captureSession = self.captureSession 
 if captureSession.isRunning 
 captureSession.stopRunning()
 self.captureSession = nil
 self.btnCapture.isUserInteractionEnabled = false
 
 

Extension for AVCaptureFileOutputRecordingDelegate

extension MediaCaptureViewCotroller: AVCaptureFileOutputRecordingDelegate 
@objc func longPress(_ sender: UILongPressGestureRecognizer) 
 var device : AVCaptureDevice!
 let videoDeviceDiscoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: AVMediaType.video, position: .unspecified)
 let devices = videoDeviceDiscoverySession.devices
 device = devices[0]
 if sender.state == .began 
 print("Started...")
 self.hideControls()
 let videoPreviewLayerOrientation = videoPreviewLayer?.connection?.videoOrientation
 if !movieFileOutput.isRecording 
 print("Recording...")
 if UIDevice.current.isMultitaskingSupported 
 self.backgroundRecordingID = UIApplication.shared.beginBackgroundTask(expirationHandler: nil)
 
 let movieFileOutputConnection = movieFileOutput.connection(with: .video)
 movieFileOutputConnection?.videoOrientation = videoPreviewLayerOrientation!

 let availableVideoCodecTypes = movieFileOutput.availableVideoCodecTypes

 if #available(iOS 11.0, *) 
 if availableVideoCodecTypes.contains(.hevc) 
 movieFileOutput.setOutputSettings([AVVideoCodecKey: AVVideoCodecType.hevc], for: movieFileOutputConnection!)
 
 else 
 movieFileOutput.setOutputSettings([AVVideoCodecKey: AVVideoCodecH264], for: movieFileOutputConnection!)
 
 if ((device as AnyObject).hasMediaType(AVMediaType.video)) 
 if (device.hasTorch) 
 self.captureSession?.beginConfiguration()
 do 
 if (device.hasTorch) 
 catch
 print("Device tourch Flash Error ");
 
 self.captureSession?.commitConfiguration()
 
 
 let outputFileName = NSUUID().uuidString
 let outputFilePath = (NSTemporaryDirectory() as NSString).appendingPathComponent(("outputFileName" as NSString).appendingPathExtension("mp4")!)
 print("RecordingStart PAth", outputFilePath)
 self.cleanup(path: outputFilePath)
 movieFileOutput.startRecording(to: URL(fileURLWithPath: outputFilePath), recordingDelegate: self)
 
 else if sender.state == .ended 
 print("Ended...")
 if movieFileOutput.isRecording 
 print("Stopped")
 movieFileOutput.stopRecording()
 if ((device as AnyObject).hasMediaType(AVMediaType.video)) 
 if (device.hasTorch) 
 self.captureSession?.beginConfiguration()
 do 
 if (device.hasTorch)
 try device.lockForConfiguration()
 device.torchMode = .off
 device.unlockForConfiguration()
 
 catch
 print("Device tourch Flash Error ");
 
 self.captureSession?.commitConfiguration()
 
 
 self.showControls()
 
 else 
 
func fileOutput(_ output: AVCaptureFileOutput, didFinishRecordingTo outputFileURL: URL, from connections: [AVCaptureConnection], error: Error?) 
 print(outputFileURL.absoluteString)
 do 
 let data = try Data(contentsOf: outputFileURL)
 print("Recorded File size", data.count)
 //FIXME:- Navigate to create post screen
 catch 
 print("error in decoding file", error.localizedDescription)
 
 self.showControls()

func cleanup(path: String) 
 if FileManager.default.fileExists(atPath: path) 
 do 
 try FileManager.default.removeItem(atPath: path)
 catch 
 print("Could not remove file at url: (path)")
 
 
 if let currentBackgroundRecordingID = backgroundRecordingID 
 backgroundRecordingID = UIBackgroundTaskIdentifier.invalid
 if currentBackgroundRecordingID != UIBackgroundTaskIdentifier.invalid 
 UIApplication.shared.endBackgroundTask(currentBackgroundRecordingID)