diff --git a/core/java/android/window/TaskSnapshot.java b/core/java/android/window/TaskSnapshot.java
index f1e5fb9..b7bb608 100644
--- a/core/java/android/window/TaskSnapshot.java
+++ b/core/java/android/window/TaskSnapshot.java
@@ -50,6 +50,7 @@
     /** The size of the snapshot before scaling */
     private final Point mTaskSize;
     private final Rect mContentInsets;
+    private final Rect mLetterboxInsets;
     // Whether this snapshot is a down-sampled version of the high resolution snapshot, used
     // mainly for loading snapshots quickly from disk when user is flinging fast
     private final boolean mIsLowResolution;
@@ -67,9 +68,10 @@
     public TaskSnapshot(long id,
             @NonNull ComponentName topActivityComponent, HardwareBuffer snapshot,
             @NonNull ColorSpace colorSpace, int orientation, int rotation, Point taskSize,
-            Rect contentInsets, boolean isLowResolution, boolean isRealSnapshot,
-            int windowingMode, @WindowInsetsController.Appearance int appearance,
-            boolean isTranslucent, boolean hasImeSurface) {
+            Rect contentInsets, Rect letterboxInsets, boolean isLowResolution,
+            boolean isRealSnapshot, int windowingMode,
+            @WindowInsetsController.Appearance int appearance, boolean isTranslucent,
+            boolean hasImeSurface) {
         mId = id;
         mTopActivityComponent = topActivityComponent;
         mSnapshot = snapshot;
@@ -79,6 +81,7 @@
         mRotation = rotation;
         mTaskSize = new Point(taskSize);
         mContentInsets = new Rect(contentInsets);
+        mLetterboxInsets = new Rect(letterboxInsets);
         mIsLowResolution = isLowResolution;
         mIsRealSnapshot = isRealSnapshot;
         mWindowingMode = windowingMode;
@@ -99,6 +102,7 @@
         mRotation = source.readInt();
         mTaskSize = source.readTypedObject(Point.CREATOR);
         mContentInsets = source.readTypedObject(Rect.CREATOR);
+        mLetterboxInsets = source.readTypedObject(Rect.CREATOR);
         mIsLowResolution = source.readBoolean();
         mIsRealSnapshot = source.readBoolean();
         mWindowingMode = source.readInt();
@@ -179,6 +183,14 @@
     }
 
     /**
+     * @return The letterbox insets on the snapshot. These can be clipped off in order to
+     *         remove any letterbox areas in the snapshot.
+     */
+    public Rect getLetterboxInsets() {
+        return mLetterboxInsets;
+    }
+
+    /**
      * @return Whether this snapshot is a down-sampled version of the full resolution.
      */
     @UnsupportedAppUsage
@@ -241,6 +253,7 @@
         dest.writeInt(mRotation);
         dest.writeTypedObject(mTaskSize, 0);
         dest.writeTypedObject(mContentInsets, 0);
+        dest.writeTypedObject(mLetterboxInsets, 0);
         dest.writeBoolean(mIsLowResolution);
         dest.writeBoolean(mIsRealSnapshot);
         dest.writeInt(mWindowingMode);
@@ -262,6 +275,7 @@
                 + " mRotation=" + mRotation
                 + " mTaskSize=" + mTaskSize.toString()
                 + " mContentInsets=" + mContentInsets.toShortString()
+                + " mLetterboxInsets=" + mLetterboxInsets.toShortString()
                 + " mIsLowResolution=" + mIsLowResolution
                 + " mIsRealSnapshot=" + mIsRealSnapshot
                 + " mWindowingMode=" + mWindowingMode
@@ -289,6 +303,7 @@
         private int mRotation;
         private Point mTaskSize;
         private Rect mContentInsets;
+        private Rect mLetterboxInsets;
         private boolean mIsRealSnapshot;
         private int mWindowingMode;
         private @WindowInsetsController.Appearance
@@ -340,6 +355,11 @@
             return this;
         }
 
+        public Builder setLetterboxInsets(Rect letterboxInsets) {
+            mLetterboxInsets = letterboxInsets;
+            return this;
+        }
+
         public Builder setIsRealSnapshot(boolean realSnapshot) {
             mIsRealSnapshot = realSnapshot;
             return this;
@@ -387,6 +407,7 @@
                     mRotation,
                     mTaskSize,
                     mContentInsets,
+                    mLetterboxInsets,
                     // When building a TaskSnapshot with the Builder class, isLowResolution
                     // is always false. Low-res snapshots are only created when loading from
                     // disk.
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/StartingSurfaceDrawerTests.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/StartingSurfaceDrawerTests.java
index b866bf9..70b7c67 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/StartingSurfaceDrawerTests.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/StartingSurfaceDrawerTests.java
@@ -301,8 +301,8 @@
                 System.currentTimeMillis(),
                 new ComponentName("", ""), buffer,
                 ColorSpace.get(ColorSpace.Named.SRGB), ORIENTATION_PORTRAIT,
-                Surface.ROTATION_0, taskSize, contentInsets, false,
-                true /* isRealSnapshot */, WINDOWING_MODE_FULLSCREEN,
+                Surface.ROTATION_0, taskSize, contentInsets, new Rect() /* letterboxInsets */,
+                false, true /* isRealSnapshot */, WINDOWING_MODE_FULLSCREEN,
                 0 /* systemUiVisibility */, false /* isTranslucent */,
                 hasImeSurface /* hasImeSurface */);
     }
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/TaskSnapshotWindowTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/TaskSnapshotWindowTest.java
index aad9528..78e27c9 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/TaskSnapshotWindowTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/startingsurface/TaskSnapshotWindowTest.java
@@ -94,8 +94,8 @@
                 System.currentTimeMillis(),
                 new ComponentName("", ""), buffer,
                 ColorSpace.get(ColorSpace.Named.SRGB), ORIENTATION_PORTRAIT,
-                Surface.ROTATION_0, taskSize, contentInsets, false,
-                true /* isRealSnapshot */, WINDOWING_MODE_FULLSCREEN,
+                Surface.ROTATION_0, taskSize, contentInsets, new Rect() /* letterboxInsets */,
+                false, true /* isRealSnapshot */, WINDOWING_MODE_FULLSCREEN,
                 0 /* systemUiVisibility */, false /* isTranslucent */, false /* hasImeSurface */);
     }
 
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/ThumbnailData.java b/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/ThumbnailData.java
index 2f2876d..1142e05 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/ThumbnailData.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/ThumbnailData.java
@@ -42,6 +42,7 @@
     public int orientation;
     public int rotation;
     public Rect insets;
+    public Rect letterboxInsets;
     public boolean reducedResolution;
     public boolean isRealSnapshot;
     public boolean isTranslucent;
@@ -55,6 +56,7 @@
         orientation = ORIENTATION_UNDEFINED;
         rotation = ROTATION_UNDEFINED;
         insets = new Rect();
+        letterboxInsets = new Rect();
         reducedResolution = false;
         scale = 1f;
         isRealSnapshot = true;
@@ -97,6 +99,7 @@
     public ThumbnailData(TaskSnapshot snapshot) {
         thumbnail = makeThumbnail(snapshot);
         insets = new Rect(snapshot.getContentInsets());
+        letterboxInsets = new Rect(snapshot.getLetterboxInsets());
         orientation = snapshot.getOrientation();
         rotation = snapshot.getRotation();
         reducedResolution = snapshot.isLowResolution();
diff --git a/proto/src/task_snapshot.proto b/proto/src/task_snapshot.proto
index 4b0e4c2..1cbc17e 100644
--- a/proto/src/task_snapshot.proto
+++ b/proto/src/task_snapshot.proto
@@ -41,4 +41,8 @@
      // The task height when the snapshot was taken
      int32 task_height = 15;
      int32 appearance = 16;
+     int32 letterbox_inset_left = 17;
+     int32 letterbox_inset_top = 18;
+     int32 letterbox_inset_right = 19;
+     int32 letterbox_inset_bottom = 20;
  }
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotController.java b/services/core/java/com/android/server/wm/TaskSnapshotController.java
index 81b7cbe..bf11ebc 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotController.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotController.java
@@ -298,11 +298,13 @@
         final WindowState mainWindow = result.second;
         final Rect contentInsets = getSystemBarInsets(task.getBounds(),
                 mainWindow.getInsetsStateWithVisibilityOverride());
-        InsetUtils.addInsets(contentInsets, activity.getLetterboxInsets());
+        final Rect letterboxInsets = activity.getLetterboxInsets();
+        InsetUtils.addInsets(contentInsets, letterboxInsets);
 
         builder.setIsRealSnapshot(true);
         builder.setId(System.currentTimeMillis());
         builder.setContentInsets(contentInsets);
+        builder.setLetterboxInsets(letterboxInsets);
 
         final boolean isWindowTranslucent = mainWindow.getAttrs().format != PixelFormat.OPAQUE;
         final boolean isShowWallpaper = mainWindow.hasWallpaper();
@@ -581,7 +583,8 @@
             return null;
         }
         final Rect contentInsets = new Rect(systemBarInsets);
-        InsetUtils.addInsets(contentInsets, topChild.getLetterboxInsets());
+        final Rect letterboxInsets = topChild.getLetterboxInsets();
+        InsetUtils.addInsets(contentInsets, letterboxInsets);
 
         // Note, the app theme snapshot is never translucent because we enforce a non-translucent
         // color above
@@ -590,9 +593,9 @@
                 topChild.mActivityComponent, hwBitmap.getHardwareBuffer(),
                 hwBitmap.getColorSpace(), mainWindow.getConfiguration().orientation,
                 mainWindow.getWindowConfiguration().getRotation(), new Point(taskWidth, taskHeight),
-                contentInsets, false /* isLowResolution */, false /* isRealSnapshot */,
-                task.getWindowingMode(), getAppearance(task), false /* isTranslucent */,
-                false /* hasImeSurface */);
+                contentInsets, letterboxInsets, false /* isLowResolution */,
+                false /* isRealSnapshot */, task.getWindowingMode(),
+                getAppearance(task), false /* isTranslucent */, false /* hasImeSurface */);
     }
 
     /**
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotLoader.java b/services/core/java/com/android/server/wm/TaskSnapshotLoader.java
index d3bfbab..9189e51 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotLoader.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotLoader.java
@@ -20,7 +20,6 @@
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 
 import android.app.ActivityManager;
-import android.window.TaskSnapshot;
 import android.content.ComponentName;
 import android.graphics.Bitmap;
 import android.graphics.Bitmap.Config;
@@ -30,6 +29,7 @@
 import android.graphics.Rect;
 import android.hardware.HardwareBuffer;
 import android.util.Slog;
+import android.window.TaskSnapshot;
 
 import com.android.server.wm.nano.WindowManagerProtos.TaskSnapshotProto;
 
@@ -196,6 +196,8 @@
             return new TaskSnapshot(proto.id, topActivityComponent, buffer,
                     hwBitmap.getColorSpace(), proto.orientation, proto.rotation, taskSize,
                     new Rect(proto.insetLeft, proto.insetTop, proto.insetRight, proto.insetBottom),
+                    new Rect(proto.letterboxInsetLeft, proto.letterboxInsetTop,
+                            proto.letterboxInsetRight, proto.letterboxInsetBottom),
                     loadLowResolutionBitmap, proto.isRealSnapshot, proto.windowingMode,
                     proto.appearance, proto.isTranslucent, false /* hasImeSurface */);
         } catch (IOException e) {
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotPersister.java b/services/core/java/com/android/server/wm/TaskSnapshotPersister.java
index 60c4766..9fbcd7c 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotPersister.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotPersister.java
@@ -23,7 +23,6 @@
 
 import android.annotation.NonNull;
 import android.annotation.TestApi;
-import android.window.TaskSnapshot;
 import android.graphics.Bitmap;
 import android.graphics.Bitmap.Config;
 import android.os.Process;
@@ -31,6 +30,7 @@
 import android.util.ArraySet;
 import android.util.AtomicFile;
 import android.util.Slog;
+import android.window.TaskSnapshot;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
@@ -380,6 +380,10 @@
             proto.insetTop = mSnapshot.getContentInsets().top;
             proto.insetRight = mSnapshot.getContentInsets().right;
             proto.insetBottom = mSnapshot.getContentInsets().bottom;
+            proto.letterboxInsetLeft = mSnapshot.getLetterboxInsets().left;
+            proto.letterboxInsetTop = mSnapshot.getLetterboxInsets().top;
+            proto.letterboxInsetRight = mSnapshot.getLetterboxInsets().right;
+            proto.letterboxInsetBottom = mSnapshot.getLetterboxInsets().bottom;
             proto.isRealSnapshot = mSnapshot.isRealSnapshot();
             proto.windowingMode = mSnapshot.getWindowingMode();
             proto.appearance = mSnapshot.getAppearance();
diff --git a/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java b/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java
index 22e687a..2847283 100644
--- a/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java
+++ b/services/tests/wmtests/src/com/android/server/wm/RecentTasksTest.java
@@ -1244,7 +1244,8 @@
         }
         return new TaskSnapshot(1, new ComponentName("", ""), buffer,
                 ColorSpace.get(ColorSpace.Named.SRGB), ORIENTATION_PORTRAIT,
-                Surface.ROTATION_0, taskSize, new Rect() /* insets */, false /* isLowResolution */,
+                Surface.ROTATION_0, taskSize, new Rect() /* contentInsets */,
+                new Rect() /* letterboxInsets*/, false /* isLowResolution */,
                 true /* isRealSnapshot */, WINDOWING_MODE_FULLSCREEN, 0 /* mSystemUiVisibility */,
                 false /* isTranslucent */, false /* hasImeSurface */);
     }
diff --git a/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotControllerTest.java b/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotControllerTest.java
index 97afc16..f573b70 100644
--- a/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotControllerTest.java
+++ b/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotControllerTest.java
@@ -144,7 +144,8 @@
         final int orientation = Configuration.ORIENTATION_PORTRAIT;
         final float scaleFraction = 0.25f;
         final Rect contentInsets = new Rect(1, 2, 3, 4);
-        final Point taskSize = new Point(5, 6);
+        final Rect letterboxInsets = new Rect(5, 6, 7, 8);
+        final Point taskSize = new Point(9, 10);
 
         try {
             TaskSnapshot.Builder builder =
@@ -156,6 +157,7 @@
             builder.setColorSpace(sRGB);
             builder.setOrientation(orientation);
             builder.setContentInsets(contentInsets);
+            builder.setLetterboxInsets(letterboxInsets);
             builder.setIsTranslucent(true);
             builder.setSnapshot(buffer);
             builder.setIsRealSnapshot(true);
@@ -176,6 +178,7 @@
             assertFalse(snapshot.isLowResolution());
             assertEquals(orientation, snapshot.getOrientation());
             assertEquals(contentInsets, snapshot.getContentInsets());
+            assertEquals(letterboxInsets, snapshot.getLetterboxInsets());
             assertTrue(snapshot.isTranslucent());
             assertSame(buffer, snapshot.getHardwareBuffer());
             assertTrue(snapshot.isRealSnapshot());
diff --git a/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotPersisterTestBase.java b/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotPersisterTestBase.java
index d09ba29..437d418 100644
--- a/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotPersisterTestBase.java
+++ b/services/tests/wmtests/src/com/android/server/wm/TaskSnapshotPersisterTestBase.java
@@ -59,7 +59,8 @@
  */
 class TaskSnapshotPersisterTestBase extends WindowTestsBase {
 
-    private static final Rect TEST_INSETS = new Rect(10, 20, 30, 40);
+    private static final Rect TEST_CONTENT_INSETS = new Rect(10, 20, 30, 40);
+    private static final Rect TEST_LETTERBOX_INSETS = new Rect();
     static final File FILES_DIR = getInstrumentation().getTargetContext().getFilesDir();
     static final long MOCK_SNAPSHOT_ID = 12345678;
 
@@ -208,7 +209,7 @@
             return new TaskSnapshot(MOCK_SNAPSHOT_ID, mTopActivityComponent,
                     HardwareBuffer.createFromGraphicBuffer(buffer),
                     ColorSpace.get(ColorSpace.Named.SRGB), ORIENTATION_PORTRAIT,
-                    mRotation, taskSize, TEST_INSETS,
+                    mRotation, taskSize, TEST_CONTENT_INSETS, TEST_LETTERBOX_INSETS,
                     // When building a TaskSnapshot with the Builder class, isLowResolution
                     // is always false. Low-res snapshots are only created when loading from
                     // disk.