Add a getter to get the camera orientation relative to the devices native orientation

library/src/main/api14/com/google/android/cameraview/Camera1.java

@@ -250,6 +250,11 @@ public void onPictureTaken(byte[] data, Camera camera) {
         }
     }
 
+    @Override
+    int getCameraOrientation() {
+        return mCameraInfo.orientation;
+    }
+
     @Override
     void setDisplayOrientation(int displayOrientation) {
         if (mDisplayOrientation == displayOrientation) {

library/src/main/api21/com/google/android/cameraview/Camera2.java

@@ -193,6 +193,8 @@ public void onImageAvailable(ImageReader reader) {
     private boolean mAutoFocus;
 
     private int mFlash;
+
+    private int mCameraOrientation;
 
     private int mDisplayOrientation;
 
@@ -341,6 +343,11 @@ void takePicture() {
         }
     }
 
+    @Override
+    int getCameraOrientation() {
+        return mCameraOrientation;
+    }
+
     @Override
     void setDisplayOrientation(int displayOrientation) {
         mDisplayOrientation = displayOrientation;
@@ -407,8 +414,8 @@ private boolean chooseCameraIdByFacing() {
 
     /**
      * <p>Collects some information from {@link #mCameraCharacteristics}.</p>
-     * <p>This rewrites {@link #mPreviewSizes}, {@link #mPictureSizes}, and optionally,
-     * {@link #mAspectRatio}.</p>
+     * <p>This rewrites {@link #mPreviewSizes}, {@link #mPictureSizes},
+     * {@link #mCameraOrientation}, and optionally, {@link #mAspectRatio}.</p>
      */
     private void collectCameraInfo() {
         StreamConfigurationMap map = mCameraCharacteristics.get(
@@ -435,6 +442,8 @@ private void collectCameraInfo() {
         if (!mPreviewSizes.ratios().contains(mAspectRatio)) {
             mAspectRatio = mPreviewSizes.ratios().iterator().next();
         }
+
+        mCameraOrientation = mCameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
     }
 
     protected void collectPictureSizes(SizeMap sizes, StreamConfigurationMap map) {

library/src/main/base/com/google/android/cameraview/CameraViewImpl.java

@@ -67,6 +67,8 @@ View getView() {
 
     abstract void takePicture();
 
+    abstract int getCameraOrientation();
+
     abstract void setDisplayOrientation(int displayOrientation);
 
     interface Callback {

library/src/main/java/com/google/android/cameraview/CameraView.java

@@ -399,6 +399,15 @@ public int getFlash() {
         return mImpl.getFlash();
     }
 
+    /**
+     * Gets the camera orientation relative to the devices native orientation.
+     *
+     * @return The orientation of the camera.
+     */
+    public int getCameraOrientation() {
+        return mImpl.getCameraOrientation();
+    }
+
     /**
      * Take a picture. The result will be returned to
      * {@link Callback#onPictureTaken(CameraView, byte[])}.