Mirroring issue in Background Replacer

The MediaSource is set to rotate so that it adjusts to the
rotation of the device, and displays upright. The backdropper does not
have to do any rotation except for the mirroring in case of front
camera.
Bug: 5490654

Change-Id: Iaa3a82dd98f9cf428fb0d0b65e1175b31d37d2b1

2 files changed, 8 insertions, 0 deletions

diff --git a/res/raw/backdropper.graph b/res/raw/backdropper.graph
index a903f120..ef470f8a 100644
--- a/res/raw/backdropper.graph
+++ b/res/raw/backdropper.graph
@@ -61,6 +61,7 @@
 @filter BackDropperFilter replacer {
   autowbToggle = 1;
   learningDoneListener = $learningDoneListener;
+  orientation = $orientation;
 }
 
 // Display output
diff --git a/src/com/android/camera/EffectsRecorder.java b/src/com/android/camera/EffectsRecorder.java
index bb7c8136..737e828f 100644
--- a/src/com/android/camera/EffectsRecorder.java
+++ b/src/com/android/camera/EffectsRecorder.java
@@ -514,6 +514,13 @@ public class EffectsRecorder {
                 Filter backgroundSrc = mRunner.getGraph().getFilter("background");
                 backgroundSrc.setInputValue("sourceUrl",
                                             (String)mEffectParameter);
+                // For front camera, the background video needs to be mirrored in the
+                // backdropper filter
+                if (mCameraFacing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
+                    Filter replacer = mRunner.getGraph().getFilter("replacer");
+                    replacer.setInputValue("mirrorBg", true);
+                    if (mLogVerbose) Log.v(TAG, "Setting the background to be mirrored");
+                }
                 break;
             default:
                 break;