从 AVCaptureSession 中移除顶部和底部的灰色条

Question

我正在使用AVCaptureSession录制video.I想全屏打开相机但是顶部和底部显示灰色条。我正在使用以下代码-

-(void)addCamera
{
    session = [[AVCaptureSession alloc] init];
    session.sessionPreset = AVCaptureSessionPresetMedium;

    AVCaptureVideoPreviewLayer *captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session];
    captureVideoPreviewLayer.frame = self.view.bounds;
    [self.view.layer addSublayer:captureVideoPreviewLayer];

    AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    NSError *error = nil;
    AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];

    AVCaptureDevicePosition currentCameraPosition = [input device].position;
    currentCameraPosition = AVCaptureDevicePositionFront;

    if (!input)
    {
        // Handle the error appropriately.
        NSLog(@"ERROR: trying to open camera: %@", error);
    }
    [session addInput:input];

}

Answer 1

我只是更改 captureVideoPreviewLayer 的框架，相机全屏显示。

从 AVCaptureSession 中移除顶部和底部的灰色条

Remove top and bottom gray bar from AVCaptureSession

ios

avcapturesession