AVCaptureVideoPreviewLayer Delay when switching from Video & taking capturing image in still image mode
0
I Am using a library for creating custom camera on my swift app using the camera and video https://github.com/yonat/CameraBackground
But I am getting a delay & the camera will take an image using the flash when the flash setting is off
when switching my camera mode from video to still image and I'm trying to take an image after changing the outputs
unfortunately, if I don't set a delay it will return a dark image.
The code:
@IBAction func startCapture(_ sender: Any) {
DispatchQueue.background(delay: 0.1, background: {
// do something in background
let currentSession = self.previewLiveCamera.cameraLayer?.session
currentSession!.sessionPreset = AVCaptureSession.Preset.photo
currentSession!.addOutput(AVCaptureStillImageOutput())
}, completion: {
// when background job finishes, wait 3 seconds and do something in main thread
self.previewLiveCamera.takeCameraSnapshot( {
// animate snapshot capture
print("Starting...")
},
completion: { (capturedImage, error) -> () in
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
})
}
ios swift
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
add a comment |
0
I Am using a library for creating custom camera on my swift app using the camera and video https://github.com/yonat/CameraBackground
But I am getting a delay & the camera will take an image using the flash when the flash setting is off
when switching my camera mode from video to still image and I'm trying to take an image after changing the outputs
unfortunately, if I don't set a delay it will return a dark image.
The code:
@IBAction func startCapture(_ sender: Any) {
DispatchQueue.background(delay: 0.1, background: {
// do something in background
let currentSession = self.previewLiveCamera.cameraLayer?.session
currentSession!.sessionPreset = AVCaptureSession.Preset.photo
currentSession!.addOutput(AVCaptureStillImageOutput())
}, completion: {
// when background job finishes, wait 3 seconds and do something in main thread
self.previewLiveCamera.takeCameraSnapshot( {
// animate snapshot capture
print("Starting...")
},
completion: { (capturedImage, error) -> () in
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
})
}
ios swift
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
add a comment |
0
0
0
I Am using a library for creating custom camera on my swift app using the camera and video https://github.com/yonat/CameraBackground
But I am getting a delay & the camera will take an image using the flash when the flash setting is off
when switching my camera mode from video to still image and I'm trying to take an image after changing the outputs
unfortunately, if I don't set a delay it will return a dark image.
The code:
@IBAction func startCapture(_ sender: Any) {
DispatchQueue.background(delay: 0.1, background: {
// do something in background
let currentSession = self.previewLiveCamera.cameraLayer?.session
currentSession!.sessionPreset = AVCaptureSession.Preset.photo
currentSession!.addOutput(AVCaptureStillImageOutput())
}, completion: {
// when background job finishes, wait 3 seconds and do something in main thread
self.previewLiveCamera.takeCameraSnapshot( {
// animate snapshot capture
print("Starting...")
},
completion: { (capturedImage, error) -> () in
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
})
}
ios swift
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
I Am using a library for creating custom camera on my swift app using the camera and video https://github.com/yonat/CameraBackground
But I am getting a delay & the camera will take an image using the flash when the flash setting is off
when switching my camera mode from video to still image and I'm trying to take an image after changing the outputs
unfortunately, if I don't set a delay it will return a dark image.
The code:
@IBAction func startCapture(_ sender: Any) {
DispatchQueue.background(delay: 0.1, background: {
// do something in background
let currentSession = self.previewLiveCamera.cameraLayer?.session
currentSession!.sessionPreset = AVCaptureSession.Preset.photo
currentSession!.addOutput(AVCaptureStillImageOutput())
}, completion: {
// when background job finishes, wait 3 seconds and do something in main thread
self.previewLiveCamera.takeCameraSnapshot( {
// animate snapshot capture
print("Starting...")
},
completion: { (capturedImage, error) -> () in
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
})
}
ios swift
ios swift
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
asked Nov 22 '18 at 10:46
sebastian misassebastian misas
32
32
add a comment |
add a comment |
1 Answer
1
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Usage from CameraBackground Readme:
view.addCameraBackground()
// ...
view.takeCameraSnapshot( {
// animate snapshot capture
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot() // unfreeze image
// ... handle capturedImage and error
})
// ...
view.removeCameraBackground()
you can see, in usage is used this interval to set visibilty, so if you delete delay from your code, alpha stays 0. So use it how is described in GitHub with your code:
view.addCameraBackground()
view.takeCameraSnapshot( {
print("Starting...")
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot()
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
view.removeCameraBackground()
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
add a comment |
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1 Answer
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1 Answer
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active
oldest
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active
oldest
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active
oldest
votes
0
Usage from CameraBackground Readme:
view.addCameraBackground()
// ...
view.takeCameraSnapshot( {
// animate snapshot capture
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot() // unfreeze image
// ... handle capturedImage and error
})
// ...
view.removeCameraBackground()
you can see, in usage is used this interval to set visibilty, so if you delete delay from your code, alpha stays 0. So use it how is described in GitHub with your code:
view.addCameraBackground()
view.takeCameraSnapshot( {
print("Starting...")
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot()
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
view.removeCameraBackground()
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
add a comment |
0
Usage from CameraBackground Readme:
view.addCameraBackground()
// ...
view.takeCameraSnapshot( {
// animate snapshot capture
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot() // unfreeze image
// ... handle capturedImage and error
})
// ...
view.removeCameraBackground()
you can see, in usage is used this interval to set visibilty, so if you delete delay from your code, alpha stays 0. So use it how is described in GitHub with your code:
view.addCameraBackground()
view.takeCameraSnapshot( {
print("Starting...")
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot()
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
view.removeCameraBackground()
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
add a comment |
0
0
0
Usage from CameraBackground Readme:
view.addCameraBackground()
// ...
view.takeCameraSnapshot( {
// animate snapshot capture
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot() // unfreeze image
// ... handle capturedImage and error
})
// ...
view.removeCameraBackground()
you can see, in usage is used this interval to set visibilty, so if you delete delay from your code, alpha stays 0. So use it how is described in GitHub with your code:
view.addCameraBackground()
view.takeCameraSnapshot( {
print("Starting...")
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot()
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
view.removeCameraBackground()
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
Usage from CameraBackground Readme:
view.addCameraBackground()
// ...
view.takeCameraSnapshot( {
// animate snapshot capture
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot() // unfreeze image
// ... handle capturedImage and error
})
// ...
view.removeCameraBackground()
you can see, in usage is used this interval to set visibilty, so if you delete delay from your code, alpha stays 0. So use it how is described in GitHub with your code:
view.addCameraBackground()
view.takeCameraSnapshot( {
print("Starting...")
self.view.alpha = 0
UIView.animate(withDuration: 1) { self.view.alpha = 1 }
}, completion: { (capturedImage, error) -> () in
self.view.freeCameraSnapshot()
if capturedImage != nil {
print("compleated with image")
RZTransitionsManager.shared().defaultPresentDismissAnimationController = RZZoomAlphaAnimationController()
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "post") as! PostViewController
nextViewController.image = capturedImage
nextViewController.transitioningDelegate = RZTransitionsManager.shared()
self.present(nextViewController, animated: true, completion: {
self.previewLiveCamera.removeCameraBackground()
self.addvideoCamBackground()
self.hideCaptureBtns()
self.progressView.popIn()
self.progressView.transform = CGAffineTransform(rotationAngle: .pi)
})
}
})
view.removeCameraBackground()
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
edited Nov 22 '18 at 11:33
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
answered Nov 22 '18 at 11:14
Robert DreslerRobert Dresler
5,6681526
5,6681526
add a comment |
add a comment |
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