Add hysteresis to orientation rounding.

This prevents fast flickering between two orientation states, which
can result in ugly UI issues, especially with the preview thumbnail.

Bug: 5477483
Change-Id: I9513547207ae1918066c1a19947c974eaad72e24

1 files changed, 1 insertions, 4 deletions

diff --git a/src/com/android/camera/VideoCamera.java b/src/com/android/camera/VideoCamera.java
index df8adb9..6b1ed1d 100755
--- a/src/com/android/camera/VideoCamera.java
+++ b/src/com/android/camera/VideoCamera.java
@@ -500,9 +500,6 @@ public class VideoCamera extends ActivityBase
         }
     }
 
-    public static int roundOrientation(int orientation) {
-        return ((orientation + 45) / 90 * 90) % 360;
-    }
 
     private class MyOrientationEventListener
             extends OrientationEventListener {
@@ -516,7 +513,7 @@ public class VideoCamera extends ActivityBase
             // the camera then point the camera to floor or sky, we still have
             // the correct orientation.
             if (orientation == ORIENTATION_UNKNOWN) return;
-            mOrientation = roundOrientation(orientation);
+            mOrientation = Util.roundOrientation(orientation, mOrientation);
             // When the screen is unlocked, display rotation may change. Always
             // calculate the up-to-date orientationCompensation.
             int orientationCompensation = mOrientation