Prevent re-compression of thumbnail upon closing camera

Thumbnail is compressed to JPEG at 90% quality every time the application is
closed. This behavior causes the degrading issue that the quality of thumbnail
is getting worse.
Adding a new flag to ensure thumbnail is compressed and
stored only when it is newly generated.

bug:5371985

Change-Id: I90cedeebf2d4c5dfc25e6524529f7f1e5a6f63fc
Signed-off-by: Gilles-Arnaud Bleu-Laine <gilles@ti.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/src/com/android/camera/Camera.java b/src/com/android/camera/Camera.java
index 4c576a5..1a598f2 100644
--- a/src/com/android/camera/Camera.java
+++ b/src/com/android/camera/Camera.java
@@ -1251,10 +1251,8 @@ public class Camera extends ActivityBase implements FocusManager.Listener,
 
         if (mFirstTimeInitialized) {
             mOrientationListener.disable();
-            if (!mIsImageCaptureIntent) {
-                if (mThumbnail != null) {
-                    mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME));
-                }
+            if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) {
+                mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME));
             }
         }