diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.cpp b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
index 50b38c9..c593340 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.cpp
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
@@ -180,7 +180,7 @@
     }
 
     if (callback != nullptr) {
-        callback->onVSyncEvent(targetWakeupTime, vsyncTime, readyTime);
+        callback->onVSyncEvent(targetWakeupTime, {vsyncTime, readyTime});
     }
 }
 
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index b57ffce..adc1009 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -350,13 +350,13 @@
     mCondition.notify_all();
 }
 
-void EventThread::onVSyncEvent(nsecs_t timestamp, nsecs_t expectedVSyncTimestamp,
-                               nsecs_t deadlineTimestamp) {
+void EventThread::onVSyncEvent(nsecs_t timestamp, VSyncSource::VSyncData vsyncData) {
     std::lock_guard<std::mutex> lock(mMutex);
 
     LOG_FATAL_IF(!mVSyncState);
     mPendingEvents.push_back(makeVSync(mVSyncState->displayId, timestamp, ++mVSyncState->count,
-                                       expectedVSyncTimestamp, deadlineTimestamp));
+                                       vsyncData.expectedVSyncTimestamp,
+                                       vsyncData.deadlineTimestamp));
     mCondition.notify_all();
 }
 
diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index fa9af09..c3b9129 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h
@@ -62,11 +62,16 @@
 
 class VSyncSource {
 public:
+    class VSyncData {
+    public:
+        nsecs_t expectedVSyncTimestamp;
+        nsecs_t deadlineTimestamp;
+    };
+
     class Callback {
     public:
         virtual ~Callback() {}
-        virtual void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp,
-                                  nsecs_t deadlineTimestamp) = 0;
+        virtual void onVSyncEvent(nsecs_t when, VSyncData vsyncData) = 0;
     };
 
     virtual ~VSyncSource() {}
@@ -201,8 +206,7 @@
             REQUIRES(mMutex);
 
     // Implements VSyncSource::Callback
-    void onVSyncEvent(nsecs_t timestamp, nsecs_t expectedVSyncTimestamp,
-                      nsecs_t deadlineTimestamp) override;
+    void onVSyncEvent(nsecs_t timestamp, VSyncSource::VSyncData vsyncData) override;
 
     int64_t generateToken(nsecs_t timestamp, nsecs_t deadlineTimestamp,
                           nsecs_t expectedVSyncTimestamp) const;
diff --git a/services/surfaceflinger/Scheduler/InjectVSyncSource.h b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
index 016b076..7b93f1e 100644
--- a/services/surfaceflinger/Scheduler/InjectVSyncSource.h
+++ b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
@@ -39,7 +39,7 @@
                            nsecs_t deadlineTimestamp) {
         std::lock_guard<std::mutex> lock(mCallbackMutex);
         if (mCallback) {
-            mCallback->onVSyncEvent(when, expectedVSyncTimestamp, deadlineTimestamp);
+            mCallback->onVSyncEvent(when, {expectedVSyncTimestamp, deadlineTimestamp});
         }
     }
 
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
index 51a5081..06bbfd2 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
@@ -63,8 +63,7 @@
     FuzzedDataProvider mFdp;
 
 protected:
-    void onVSyncEvent(nsecs_t /* when */, nsecs_t /* expectedVSyncTimestamp */,
-                      nsecs_t /* deadlineTimestamp */) {}
+    void onVSyncEvent(nsecs_t /* when */, VSyncSource::VSyncData) {}
 };
 
 PhysicalDisplayId SchedulerFuzzer::getPhysicalDisplayId() {
diff --git a/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp b/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
index f613e43..5a0ea35 100644
--- a/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
@@ -128,13 +128,12 @@
     void createDispSync();
     void createDispSyncSource();
 
-    void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp,
-                      nsecs_t deadlineTimestamp) override;
+    void onVSyncEvent(nsecs_t when, VSyncSource::VSyncData) override;
 
     std::unique_ptr<MockVSyncDispatch> mVSyncDispatch;
     std::unique_ptr<scheduler::DispSyncSource> mDispSyncSource;
 
-    AsyncCallRecorder<void (*)(nsecs_t, nsecs_t, nsecs_t)> mVSyncEventCallRecorder;
+    AsyncCallRecorder<void (*)(nsecs_t, VSyncSource::VSyncData)> mVSyncEventCallRecorder;
 
     static constexpr std::chrono::nanoseconds mWorkDuration = 20ms;
     static constexpr std::chrono::nanoseconds mReadyDuration = 10ms;
@@ -155,11 +154,10 @@
     ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
 }
 
-void DispSyncSourceTest::onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp,
-                                      nsecs_t deadlineTimestamp) {
+void DispSyncSourceTest::onVSyncEvent(nsecs_t when, VSyncSource::VSyncData vsyncData) {
     ALOGD("onVSyncEvent: %" PRId64, when);
 
-    mVSyncEventCallRecorder.recordCall(when, expectedVSyncTimestamp, deadlineTimestamp);
+    mVSyncEventCallRecorder.recordCall(when, vsyncData);
 }
 
 void DispSyncSourceTest::createDispSync() {
@@ -233,8 +231,10 @@
         mVSyncDispatch->triggerCallbacks();
         const auto callbackData = mVSyncEventCallRecorder.waitForCall();
         ASSERT_TRUE(callbackData.has_value());
-        const auto [when, expectedVSyncTimestamp, deadlineTimestamp] = callbackData.value();
-        EXPECT_EQ(when, expectedVSyncTimestamp - mWorkDuration.count() - mReadyDuration.count());
+        const auto [when, vsyncData] = callbackData.value();
+        EXPECT_EQ(when,
+                  vsyncData.expectedVSyncTimestamp - mWorkDuration.count() -
+                          mReadyDuration.count());
     }
 }
 
@@ -265,8 +265,10 @@
         mVSyncDispatch->triggerCallbacks();
         const auto callbackData = mVSyncEventCallRecorder.waitForCall();
         ASSERT_TRUE(callbackData.has_value());
-        const auto [when, expectedVSyncTimestamp, deadlineTimestamp] = callbackData.value();
-        EXPECT_EQ(when, expectedVSyncTimestamp - mWorkDuration.count() - mReadyDuration.count());
+        const auto [when, vsyncData] = callbackData.value();
+        EXPECT_EQ(when,
+                  vsyncData.expectedVSyncTimestamp - mWorkDuration.count() -
+                          mReadyDuration.count());
     }
 
     const auto newDuration = mWorkDuration / 2;
@@ -286,8 +288,8 @@
         mVSyncDispatch->triggerCallbacks();
         const auto callbackData = mVSyncEventCallRecorder.waitForCall();
         ASSERT_TRUE(callbackData.has_value());
-        const auto [when, expectedVSyncTimestamp, deadlineTimestamp] = callbackData.value();
-        EXPECT_EQ(when, expectedVSyncTimestamp - newDuration.count());
+        const auto [when, vsyncData] = callbackData.value();
+        EXPECT_EQ(when, vsyncData.expectedVSyncTimestamp - newDuration.count());
     }
 
     EXPECT_CALL(*mVSyncDispatch, cancel(_)).Times(1);
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index 7761828..e5f7b03 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -368,7 +368,7 @@
 
     // Use the received callback to signal a first vsync event.
     // The interceptor should receive the event, as well as the connection.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectThrottleVsyncReceived(456, mConnectionUid);
     expectVsyncEventReceivedByConnection(123, 1u);
@@ -376,7 +376,7 @@
     // Use the received callback to signal a second vsync event.
     // The interceptor should receive the event, but the connection should
     // not as it was only interested in the first.
-    mCallback->onVSyncEvent(456, 123, 0);
+    mCallback->onVSyncEvent(456, {123, 0});
     expectInterceptCallReceived(456);
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
@@ -394,7 +394,7 @@
 
     // Use the received callback to signal a vsync event.
     // The interceptor should receive the event, as well as the connection.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectVsyncEventFrameTimelinesCorrect(123, 789);
 }
@@ -421,7 +421,7 @@
     // Send a vsync event. EventThread should then make a call to the
     // interceptor, and the second connection. The first connection should not
     // get the event.
-    mCallback->onVSyncEvent(123, 456, 0);
+    mCallback->onVSyncEvent(123, {456, 0});
     expectInterceptCallReceived(123);
     EXPECT_FALSE(firstConnectionEventRecorder.waitForUnexpectedCall().has_value());
     expectVsyncEventReceivedByConnection("secondConnection", secondConnectionEventRecorder, 123,
@@ -436,19 +436,19 @@
 
     // Send a vsync event. EventThread should then make a call to the
     // interceptor, and the connection.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectThrottleVsyncReceived(456, mConnectionUid);
     expectVsyncEventReceivedByConnection(123, 1u);
 
     // A second event should go to the same places.
-    mCallback->onVSyncEvent(456, 123, 0);
+    mCallback->onVSyncEvent(456, {123, 0});
     expectInterceptCallReceived(456);
     expectThrottleVsyncReceived(123, mConnectionUid);
     expectVsyncEventReceivedByConnection(456, 2u);
 
     // A third event should go to the same places.
-    mCallback->onVSyncEvent(789, 777, 111);
+    mCallback->onVSyncEvent(789, {777, 111});
     expectInterceptCallReceived(789);
     expectThrottleVsyncReceived(777, mConnectionUid);
     expectVsyncEventReceivedByConnection(789, 3u);
@@ -461,25 +461,25 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // The first event will be seen by the interceptor, and not the connection.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
 
     // The second event will be seen by the interceptor and the connection.
-    mCallback->onVSyncEvent(456, 123, 0);
+    mCallback->onVSyncEvent(456, {123, 0});
     expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection(456, 2u);
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
 
     // The third event will be seen by the interceptor, and not the connection.
-    mCallback->onVSyncEvent(789, 777, 744);
+    mCallback->onVSyncEvent(789, {777, 744});
     expectInterceptCallReceived(789);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
 
     // The fourth event will be seen by the interceptor and the connection.
-    mCallback->onVSyncEvent(101112, 7847, 86);
+    mCallback->onVSyncEvent(101112, {7847, 86});
     expectInterceptCallReceived(101112);
     expectVsyncEventReceivedByConnection(101112, 4u);
 }
@@ -494,7 +494,7 @@
     mConnection = nullptr;
 
     // The first event will be seen by the interceptor, and not the connection.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
@@ -512,13 +512,13 @@
 
     // The first event will be seen by the interceptor, and by the connection,
     // which then returns an error.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
 
     // A subsequent event will be seen by the interceptor and not by the
     // connection.
-    mCallback->onVSyncEvent(456, 123, 0);
+    mCallback->onVSyncEvent(456, {123, 0});
     expectInterceptCallReceived(456);
     EXPECT_FALSE(errorConnectionEventRecorder.waitForUnexpectedCall().has_value());
 
@@ -543,7 +543,7 @@
 
     // The first event will be seen by the interceptor, and by the connection,
     // which then returns an error.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
     expectVsyncEventReceivedByConnection("successConnection", secondConnectionEventRecorder, 123,
@@ -561,13 +561,13 @@
 
     // The first event will be seen by the interceptor, and by the connection,
     // which then returns an non-fatal error.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
 
     // A subsequent event will be seen by the interceptor, and by the connection,
     // which still then returns an non-fatal error.
-    mCallback->onVSyncEvent(456, 123, 0);
+    mCallback->onVSyncEvent(456, {123, 0});
     expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 456, 2u);
 
@@ -691,7 +691,7 @@
 
     // Use the received callback to signal a first vsync event.
     // The interceptor should receive the event, but not the connection.
-    mCallback->onVSyncEvent(123, 456, 789);
+    mCallback->onVSyncEvent(123, {456, 789});
     expectInterceptCallReceived(123);
     expectThrottleVsyncReceived(456, mThrottledConnectionUid);
     mThrottledConnectionEventCallRecorder.waitForUnexpectedCall();
@@ -699,7 +699,7 @@
     // Use the received callback to signal a second vsync event.
     // The interceptor should receive the event, but the connection should
     // not as it was only interested in the first.
-    mCallback->onVSyncEvent(456, 123, 0);
+    mCallback->onVSyncEvent(456, {123, 0});
     expectInterceptCallReceived(456);
     expectThrottleVsyncReceived(123, mThrottledConnectionUid);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());