我用AVCamSwift拍照。但是，当我从内置相机拍摄照片时，它将图像保存为垂直反转。代码的所有者已确认这是一个错误。这些是我使用的代码：
@IBAction func snapStillImage(sender: AnyObject) {
print("snapStillImage")
dispatch_async(self.sessionQueue, {
// Update the orientation on the still image output video connection before capturing.
let videoOrientation = (self.previewView.layer as! AVCaptureVideoPreviewLayer).connection.videoOrientation
self.stillImageOutput!.connectionWithMediaType(AVMediaTypeVideo).videoOrientation = videoOrientation
// Flash set to Auto for Still Capture
takePhotoScreen.setFlashMode(AVCaptureFlashMode.Auto, device: self.videoDeviceInput!.device)
self.stillImageOutput!.captureStillImageAsynchronouslyFromConnection(self.stillImageOutput!.connectionWithMediaType(AVMediaTypeVideo), completionHandler: {
(imageDataSampleBuffer: CMSampleBuffer!, error: NSError!) in
if error == nil {
let data:NSData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageDataSampleBuffer)
let image:UIImage = UIImage( data: data)!
let libaray:ALAssetsLibrary = ALAssetsLibrary()
let orientation: ALAssetOrientation = ALAssetOrientation(rawValue: image.imageOrientation.rawValue)!
libaray.writeImageToSavedPhotosAlbum(image.CGImage, orientation: orientation, completionBlock: nil)
print("save to album")
}else{
print("Did not capture still image")
print(error)
}
})
})
}
@IBAction func changeCamera(sender: AnyObject) {
print("change camera")
self.cameraButton.enabled = false
self.snapButton.enabled = false
dispatch_async(self.sessionQueue, {
let currentVideoDevice:AVCaptureDevice = self.videoDeviceInput!.device
let currentPosition: AVCaptureDevicePosition = currentVideoDevice.position
var preferredPosition: AVCaptureDevicePosition = AVCaptureDevicePosition.Unspecified
switch currentPosition{
case AVCaptureDevicePosition.Front:
preferredPosition = AVCaptureDevicePosition.Back
case AVCaptureDevicePosition.Back:
preferredPosition = AVCaptureDevicePosition.Front
case AVCaptureDevicePosition.Unspecified:
preferredPosition = AVCaptureDevicePosition.Back
}
let device:AVCaptureDevice = takePhotoScreen.deviceWithMediaType(AVMediaTypeVideo, preferringPosition: preferredPosition)
var videoDeviceInput: AVCaptureDeviceInput?
do {
videoDeviceInput = try AVCaptureDeviceInput(device: device)
} catch _ as NSError {
videoDeviceInput = nil
} catch {
fatalError()
}
self.session!.beginConfiguration()
self.session!.removeInput(self.videoDeviceInput)
if self.session!.canAddInput(videoDeviceInput){
NSNotificationCenter.defaultCenter().removeObserver(self, name:AVCaptureDeviceSubjectAreaDidChangeNotification, object:currentVideoDevice)
takePhotoScreen.setFlashMode(AVCaptureFlashMode.Auto, device: device)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "subjectAreaDidChange:", name: AVCaptureDeviceSubjectAreaDidChangeNotification, object: device)
self.session!.addInput(videoDeviceInput)
self.videoDeviceInput = videoDeviceInput
}else{
self.session!.addInput(self.videoDeviceInput)
}
self.session!.commitConfiguration()
dispatch_async(dispatch_get_main_queue(), {
//
self.snapButton.enabled = true
self.cameraButton.enabled = true
})
})
}
我尝试使用以下代码找到解决方案，但在前置凸轮中失败。您是否有建议找到解决方法？
let reversedImage = UIImage(CGImage: pickedPhoto!.CGImage!, scale: 1.0, orientation: .LeftMirrored)
最佳答案
我通过以下解决方案解决了该错误：
let currentVideoDevice:AVCaptureDevice = self.videoDeviceInput!.device
let currentPosition: AVCaptureDevicePosition = currentVideoDevice.position
if currentPosition == AVCaptureDevicePosition.Front
{let reversedImage = UIImage(CGImage: image.CGImage!, scale: 1.0, orientation: .LeftMirrored)
sp.pickedPhoto = reversedImage}
关于ios - AVCamSwift前置摄像头可垂直反转保存图像，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/34364688/