Fix NPE by adding a onPause check

Bug: 12682478
Change-Id: Ida9c79287751089449569ec26dcf1c1f195afde9
diff --git a/src/com/android/camera/VideoModule.java b/src/com/android/camera/VideoModule.java
index adf3043..0b88294 100644
--- a/src/com/android/camera/VideoModule.java
+++ b/src/com/android/camera/VideoModule.java
@@ -1336,8 +1336,8 @@
         }
         // release media recorder
         releaseMediaRecorder();
-        setFocusParameters();
         if (!mPaused) {
+            setFocusParameters();
             mCameraDevice.lock();
             if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) {
                 stopPreview();