闪光灯控制

Flash和Torch，闪光灯和火炬是不一样的，as they use the same lamp.//************************************************************************************AVCaptureDevice.h主要用来获取iphone一些关于相机设备的属性。前置和后置摄像头

enum?{

AVCaptureDevicePositionBack????????????????=?1,

AVCaptureDevicePositionFront ??????????????=?2

};

typedef?NSInteger?AVCaptureDevicePosition;

?

闪光灯开关

?

enum?{

AVCaptureFlashModeOff??=?0,

AVCaptureFlashModeOn ??=?1,

AVCaptureFlashModeAuto =?2

};

typedef?NSInteger?AVCaptureFlashMode;

手电筒开关

?

enum?{

AVCaptureTorchModeOff??=?0,

AVCaptureTorchModeOn ??=?1,

AVCaptureTorchModeAuto =?2,

};

typedef?NSInteger?AVCaptureTorchMode;

?

焦距调整

?

enum?{

AVCaptureFocusModeLocked??????????????=?0,

AVCaptureFocusModeAutoFocus ??????????=?1,

AVCaptureFocusModeContinuousAutoFocus =?2,

};

typedef?NSInteger?AVCaptureFocusMode;

?

曝光量调节

?

enum?{

AVCaptureExposureModeLocked =?0,

AVCaptureExposureModeAutoExpose =?1,

AVCaptureExposureModeContinuousAutoExposure =?2,

};

typedef?NSInteger?AVCaptureExposureMode;

?

白平衡

?

enum?{

AVCaptureWhiteBalanceModeLocked ????????=?0,

AVCaptureWhiteBalanceModeAutoWhiteBalance ????????=?1,

????AVCaptureWhiteBalanceModeContinuousAutoWhiteBalance =?2,

};

typedef?NSInteger?AVCaptureWhiteBalanceMode;