20 import android.hardware.Camera;
49     public static Camera.Size getOptimalVideoSize(List<Camera.Size> supportedVideoSizes,  in getOptimalVideoSize()
50             List<Camera.Size> previewSizes, int w, int h) {  in getOptimalVideoSize()
57         List<Camera.Size> videoSizes;  in getOptimalVideoSize()
63         Camera.Size optimalSize = null;  in getOptimalVideoSize()
75         for (Camera.Size size : videoSizes) {  in getOptimalVideoSize()
88             for (Camera.Size size : videoSizes) {  in getOptimalVideoSize()
101     public static Camera getDefaultCameraInstance() {  in getDefaultCameraInstance()
102         return Camera.open();  in getDefaultCameraInstance()
110     public static Camera getDefaultBackFacingCameraInstance() {  in getDefaultBackFacingCameraInstance()
111         return getDefaultCamera(Camera.CameraInfo.CAMERA_FACING_BACK);  in getDefaultBackFacingCameraInstance()
118     public static Camera getDefaultFrontFacingCameraInstance() {  in getDefaultFrontFacingCameraInstance()
119         return getDefaultCamera(Camera.CameraInfo.CAMERA_FACING_FRONT);  in getDefaultFrontFacingCameraInstance()
130     private static Camera getDefaultCamera(int position) {  in getDefaultCamera()
132         int  mNumberOfCameras = Camera.getNumberOfCameras();  in getDefaultCamera()
135         Camera.CameraInfo cameraInfo = new Camera.CameraInfo();  in getDefaultCamera()
137             Camera.getCameraInfo(i, cameraInfo);  in getDefaultCamera()
139                 return Camera.open(i);  in getDefaultCamera()