I'm trying to create a custom camera in Swift. I've found many posts on this, and managed to open the camera, have a "Start recording" button. However, when clicking on the "Start recording" button, I have this error:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[AVCaptureMovieFileOutput startRecordingToOutputFileURL:recordingDelegate:] No active/enabled connections'
When looking up this error, it's supposed to be caused by not setting the quality of the camera which I did in the beginSession function:
func beginSession(captureDevice: AVCaptureDevice) {
var err : NSError? = nil
var input = AVCaptureDeviceInput?()
do {
input = try AVCaptureDeviceInput(device: captureDevice)
} catch _ {
//Error handling, if needed
}
captureSession.addInput(input)
captureSession.sessionPreset = AVCaptureSessionPresetHigh;
if err != nil {
print("error: \(err?.localizedDescription)")
}
previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
self.view.layer.addSublayer(previewLayer!)
previewLayer?.frame = self.view.layer.frame
captureSession.startRunning()
let btn: UIButton = UIButton(frame: CGRectMake((self.view.frame.size.width-350)/2, (self.view.frame.size.height-80), 350, 70))
btn.backgroundColor = hexStringToUIColor("#E53935")
btn.setTitle("Start Recording", forState: UIControlState.Normal)
btn.addTarget(self, action: "takeVideoAction", forControlEvents: UIControlEvents.TouchUpInside)
btn.tag = 1 // change tag property
self.view.addSubview(btn)
}
Here is the full code:
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, CLLocationManagerDelegate,AVCaptureFileOutputRecordingDelegate {
let imagePicker: UIImagePickerController! = UIImagePickerController()
let saveFileName = "/test.mp4"
var locationManager : CLLocationManager! = CLLocationManager()
var startLocation: CLLocation!
//let captureSession = AVCaptureSession()
var stillImageOutput: AVCaptureStillImageOutput?
var previewLayer: AVCaptureVideoPreviewLayer?
let captureSession = AVCaptureSession()
// MARK: ViewController methods
override func viewDidLoad() {
super.viewDidLoad()
//var timer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: #selector(ViewController.update), userInfo: nil, repeats: true)
// Do any additional setup after loading the view, typically from a nib.
let btn: UIButton = UIButton(frame: CGRectMake((self.view.frame.size.width-350)/2, (self.view.frame.size.height-80), 350, 70))
btn.backgroundColor = hexStringToUIColor("#E53935")
btn.setTitle("Go to recording", forState: UIControlState.Normal)
btn.addTarget(self, action: "recordVideo:", forControlEvents: UIControlEvents.TouchUpInside)
btn.tag = 1 // change tag property
self.view.addSubview(btn) // add to view as subview
if CLLocationManager.locationServicesEnabled() {
locationManager.requestAlwaysAuthorization()
locationManager.requestWhenInUseAuthorization()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
print(locationManager.location)
}
}
func startCameraFromViewController(viewController: UIViewController, withDelegate delegate: protocol<UIImagePickerControllerDelegate, UINavigationControllerDelegate>) -> Bool {
if UIImagePickerController.isSourceTypeAvailable(.Camera) == false {
return false
}
var cameraController = UIImagePickerController()
cameraController.sourceType = .Camera
cameraController.mediaTypes = [kUTTypeMovie as NSString as String]
cameraController.allowsEditing = false
cameraController.delegate = delegate
presentViewController(cameraController, animated: true, completion: nil)
return true
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
let mediaType = info[UIImagePickerControllerMediaType] as! NSString
dismissViewControllerAnimated(true, completion: nil)
// Handle a movie capture
if mediaType == kUTTypeMovie {
guard let path = (info[UIImagePickerControllerMediaURL] as! NSURL).path else { return }
if UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(path) {
UISaveVideoAtPathToSavedPhotosAlbum(path, self, #selector(ViewController.video(_:didFinishSavingWithError:contextInfo:)), nil)
}
}
}
func video(videoPath: NSString, didFinishSavingWithError error: NSError?, contextInfo info: AnyObject) {
var title = "Success"
var message = "Video was saved"
if let _ = error {
title = "Error"
message = "Video failed to save"
}
let alert = UIAlertController(title: title, message: message, preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Cancel, handler: nil))
presentViewController(alert, animated: true, completion: nil)
}
// MARK: Button handlers
// Record a video
@IBAction func recordVideo(sender: AnyObject) {
let devices = AVCaptureDevice.devices()
captureSession.sessionPreset = AVCaptureSessionPresetHigh
// captureSession.sessionPreset = kCaptureSessionPresetVideo
for device in devices {
// Make sure this particular device supports video
if (device.hasMediaType(AVMediaTypeVideo)) {
// Finally check the position and confirm we've got the back camera
if(device.position == AVCaptureDevicePosition.Back) {
var captureDevice = device as? AVCaptureDevice
if captureDevice != nil {
beginSession(captureDevice!)
}
}
}
}
}
func beginSession(captureDevice: AVCaptureDevice) {
var err : NSError? = nil
var input = AVCaptureDeviceInput?()
do {
input = try AVCaptureDeviceInput(device: captureDevice)
} catch _ {
//Error handling, if needed
}
captureSession.addInput(input)
captureSession.sessionPreset = AVCaptureSessionPresetHigh;
if err != nil {
print("error: \(err?.localizedDescription)")
}
previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
self.view.layer.addSublayer(previewLayer!)
previewLayer?.frame = self.view.layer.frame
captureSession.startRunning()
let btn: UIButton = UIButton(frame: CGRectMake((self.view.frame.size.width-350)/2, (self.view.frame.size.height-80), 350, 70))
btn.backgroundColor = hexStringToUIColor("#E53935")
btn.setTitle("Start Recording", forState: UIControlState.Normal)
btn.addTarget(self, action: "takeVideoAction", forControlEvents: UIControlEvents.TouchUpInside)
btn.tag = 1 // change tag property
self.view.addSubview(btn)
}
func takeVideoAction() {
var fileName = "mysavefile.mp4";
let documentsURL = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)[0]
var filePath = documentsURL.URLByAppendingPathComponent(fileName)
let videoFileOutput = AVCaptureMovieFileOutput()
let recordingDelegate:AVCaptureFileOutputRecordingDelegate? = self
videoFileOutput.startRecordingToOutputFileURL(filePath, recordingDelegate: recordingDelegate)
self.captureSession.addOutput(videoFileOutput)
startCameraFromViewController(self, withDelegate: self)
}
func captureOutput(captureOutput: AVCaptureFileOutput!, didFinishRecordingToOutputFileAtURL outputFileURL: NSURL!, fromConnections connections: [AnyObject]!, error: NSError!) {
return
}
func captureOutput(captureOutput: AVCaptureFileOutput!, didStartRecordingToOutputFileAtURL fileURL: NSURL!, fromConnections connections: [AnyObject]!) {
return
}
}
Any input will be much appreciated
