commit ec0c32894c2e3d879d6dc26c48d151e3eebb103b
author Robert Dalton <rdaltonjr@google.com> Fri Aug 26 10:33:34 2022 +0000
committer Robert Dalton <rdaltonjr@google.com> Mon Aug 29 18:06:17 2022 +0000
tree 23b79d4c96404376e18a5663624bd2689b1798f5
parent e0d43b4204ad143ad1883b6798bdaa586221b4a7

Tune stillness detector for more responsive headtracking

Bug: 243821894
Test: manual - validated through listening tests

Change-Id: I2b07ac16e790d03b05f2ba0912d92901598d2bd5

media/libheadtracking/HeadTrackingProcessor.cpp

diff --git a/media/libheadtracking/HeadTrackingProcessor.cpp b/media/libheadtracking/HeadTrackingProcessor.cpp
index fb44567..ccb75af 100644
--- a/media/libheadtracking/HeadTrackingProcessor.cpp
+++ b/media/libheadtracking/HeadTrackingProcessor.cpp
@@ -88,10 +88,12 @@
     }
 
     void calculate(int64_t timestamp) override {
-        // Handle the screen first, since it might trigger a recentering of the head.
+        bool screenStable = true;
+
+        // Handle the screen first, since it might: trigger a recentering of the head.
         if (mWorldToScreenTimestamp.has_value()) {
             const Pose3f worldToLogicalScreen = mScreenPoseBias.getOutput();
-            bool screenStable = mScreenStillnessDetector.calculate(timestamp);
+            screenStable = mScreenStillnessDetector.calculate(timestamp);
             mModeSelector.setScreenStable(mWorldToScreenTimestamp.value(), screenStable);
             // Whenever the screen is unstable, recenter the head pose.
             if (!screenStable) {
@@ -105,7 +107,8 @@
         if (mWorldToHeadTimestamp.has_value()) {
             Pose3f worldToHead = mHeadPoseBias.getOutput();
             // Auto-recenter.
-            if (mHeadStillnessDetector.calculate(timestamp)) {
+            bool headStable = mHeadStillnessDetector.calculate(timestamp);
+            if (headStable || !screenStable) {
                 recenter(true, false);
                 worldToHead = mHeadPoseBias.getOutput();
             }