0
Xamarin Forms 솔루션이 있고 iOS 프로젝트에서 스트림에있는 이미지를 UIImage로 변환하고 싶습니다. 이 코드와 함께 회전하기 위해있는 UIImage 필요Xamarin iOS에서 스트림을 UIImage로 변환하는 방법?
var _captureSession = new AVCaptureSession();
var _captureDevice = AVCaptureDevice.GetDefaultDevice(AVMediaType.Video);
var output = new AVCaptureStillImageOutput { OutputSettings = new NSDictionary(AVVideo.CodecKey, AVVideo.CodecJPEG) };
NSError error;
_captureSession.AddInput(new AVCaptureDeviceInput(_captureDevice, out error));
_captureSession.AddOutput(output);
_captureSession.StartRunning();
var buffer = await output.CaptureStillImageTaskAsync(output.Connections[0]);
NSData data = AVCaptureStillImageOutput.JpegStillToNSData(buffer);
Stream stream = data.AsStream();
:
public UIImage RotateImage(UIImage image)
{
CGImage imgRef = image.CGImage;
float width = imgRef.Width;
float height = imgRef.Height;
CGAffineTransform transform = CGAffineTransform.MakeIdentity();
RectangleF bounds = new RectangleF(0, 0, width, height);
float scaleRatio = bounds.Size.Width/width;
SizeF imageSize = new SizeF(imgRef.Width, imgRef.Height);
UIImageOrientation orient = image.Orientation;
float boundHeight;
if (width > height)
{
boundHeight = bounds.Size.Height;
bounds.Size = new SizeF(boundHeight, bounds.Size.Width);
transform = CGAffineTransform.MakeTranslation(imageSize.Height, 0);
transform = CGAffineTransform.Rotate(transform, (float)Math.PI/2.0f);
}
UIGraphics.BeginImageContext(bounds.Size);
CGContext context = UIGraphics.GetCurrentContext();
context.ScaleCTM(-scaleRatio, scaleRatio);
context.TranslateCTM(-height, 0);
context.ConcatCTM(transform);
context.DrawImage(new RectangleF(0, 0, width, height), imgRef);
UIImage imageCopy = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
return imageCopy;
}
어떻게 스트림이있는 UIImage로 변환하는이 코드로 스트림을 얻을?