Ios AVCaptureStillImageOutput和AVCaptureVideoPreviewLayer图像大小不一致
我现在正面临一个让我发疯的问题 我有一个应用程序，它有一个AVCaptureVideoPreviewLayer来显示摄像头，类似于snapchat 当我通过AVCaptureStillImageOutput拍摄静态图片时，它比预览层宽得多 我想实现的是，在拍摄照片后，根据大小，拍摄的照片与预览中的照片看起来是1:1Ios AVCaptureStillImageOutput和AVCaptureVideoPreviewLayer图像大小不一致,ios,swift,cocoa-touch,avfoundation,avcapturesession,Ios,Swift,Cocoa Touch,Avfoundation,Avcapturesession,我现在正面临一个让我发疯的问题 我有一个应用程序，它有一个AVCaptureVideoPreviewLayer来显示摄像头，类似于snapchat 当我通过AVCaptureStillImageOutput拍摄静态图片时，它比预览层宽得多 我想实现的是，在拍摄照片后，根据大小，拍摄的照片与预览中的照片看起来是1:1 func takePicture(){ if let videoConnection = stillImageOutput.connectionWithMediaTy
func takePicture(){
if let videoConnection = stillImageOutput.connectionWithMediaType(AVMediaTypeVideo) {
// make sure we have the proper device orientation set
videoConnection.videoOrientation = previewLayer!.connection!.videoOrientation
stillImageOutput.captureStillImageAsynchronouslyFromConnection(videoConnection) {
(imageDataSampleBuffer, error) -> Void in
// take the picture from output
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageDataSampleBuffer)
let imageOriginal:UIImage = UIImage(data: imageData)!
// imageOriginal must have the same aspect and size as the previewLayer!
}
}
}
previewLayer?.videoGravity = AVLayerVideoGravityResizeAspectFill