camera的问题mount angle，帮忙翻译一下

[月光宝盒]

2.2上的camera移到2.3上，在camere的驱动中要设置两个值
朝向和mount angle，朝向就是前camera还是后camera，问题是这个mount angle
搞不清要如何设置，到底设置多少度，前camera预览是正常的，一拍照就镜像了，所以怀疑这个angle没设置对。
结果在上层找到了说明，却没有搞明白是什么意思，
说明如下

Framework/base/core/java/android/hardware/camera.java

**
* The orientation of the camera image. The value is the angle that the
* camera image needs to be rotated clockwise so it shows correctly on
* the display in its natural orientation. It should be 0, 90, 180, or 270.
*
* For example, suppose a device has a naturally tall screen. The
* back-facing camera sensor is mounted in landscape. You are looking at
* the screen. If the top side of the camera sensor is aligned with the
* right edge of the screen in natural orientation, the value should be
* 90. If the top side of a front-facing camera sensor is aligned with
* the right of the screen, the value should be 270.*
大家帮忙解释一下，这个mount angle干嘛用的，如何设置？
尤其是红色部分，sensor的顶端和屏的右端对齐，什么意思？
前摄像头的顶端和和屏右端对齐又是什么意思？
natural orientation指什么，我们正常使用时手机的状态？
英语很烂，让大家见笑了

[月光宝盒]

万能的坛子啊

[月光宝盒]

[Quote=引用 2 楼 yiyaaixuexi 的回复:]

mount angle就是倾斜的角度呀，不知道你哪里不明白呢
[/Quote]
我是想知道这个值如何设置？
因为在上层看到会用这个值，前后camera处理不一样：
preview时：

  public static void setCameraDisplayOrientation(Activity activity,
            int cameraId, Camera camera) {
        // See android.hardware.Camera.setCameraDisplayOrientation for
        // documentation.
        Camera.CameraInfo info = new Camera.CameraInfo();
        Camera.getCameraInfo(cameraId, info);
        int degrees = getDisplayRotation(activity);
        int result;
			
        if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
		Log.e(TAG, "=yue===>setCameraDisplayOrientation FACING FRONT ");		
            result = (info.orientation + degrees) % 360;
           result = (360 - result) % 360;  // compensate the mirror
        } else {  // back-facing
	        Log.e(TAG, "====>setCameraDisplayOrientation FACING BACK ");		
            result = (info.orientation - degrees + 360) % 360;
        }
//	result=270;
	Log.e(TAG, "====>setCameraDisplayOrientation: result= "+ result);		
	
        camera.setDisplayOrientation(result);
    }

capture时：

        private void capture() {
            mCaptureOnlyData = null;

            // See android.hardware.Camera.Parameters.setRotation for
            // documentation.
            int rotation = 0;

		Log.e(TAG, "====>capture  mOrientation ="+mOrientation);		
			
            if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) {
                CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
		Log.e(TAG, "====>capture  info.orientation ="+(info.orientation));		

                if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
                    rotation = (info.orientation - mOrientation + 360) % 360;
					
                } else {  // back-facing camera
                    rotation = (info.orientation + mOrientation) % 360;
                }
            }
		
            mParameters.setRotation(rotation);

[念茜]

mount angle就是倾斜的角度呀，不知道你哪里不明白呢