iphone - 从前置摄像头 iOS 5.0 捕获时总是看到镜像

Question

从前置摄像头捕捉数据时，我总是得到镜像图像，我怎样才能得到我在预览窗口中看到的图像。我已将 videoMirrored 设置为 TRUE。以下是代码片段:

AVCaptureConnection *lConnection = nil;

  for ( AVCaptureConnection *connection in [lHandle->m_output connections]) {
     for ( AVCaptureInputPort *port in [connection inputPorts] ) {
         if ( [[port mediaType] isEqual:AVMediaTypeVideo] ) {
             lConnection = connection;
             break;
         }
     }
 }
if ([lConnection isVideoOrientationSupported])
    [lConnection setVideoOrientation:AVCaptureVideoOrientationPortrait];
if ([lConnection isVideoMirroringSupported])
    [lConnection setVideoMirrored:TRUE];

将 setVideoMirrored 更改为 True/False 也不会改变任何内容 (isVideoMirroringSupported 返回成功)

Answer 1

使用以下代码翻转镜像。

UIImage * flippedImage = [UIImage imageWithCGImage:picture.CGImage scale:picture.scale orientation:UIImageOrientationLeftMirrored];