AVCaptureConnection——setVideoOrientation参数(效果图):
AVCaptureVideoOrientationPortrait
AVCaptureVideoOrientationPortraitUpsideDown
AVCaptureVideoOrientationLandscapeRight
AVCaptureVideoOrientationLandscapeLeft
AVCaptureConnection——setVideoOrientation参数(效果图):
AVCaptureVideoOrientationPortrait
AVCaptureVideoOrientationPortraitUpsideDown
AVCaptureVideoOrientationLandscapeRight
AVCaptureVideoOrientationLandscapeLeft