diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index d9678f7..8eb7fd0 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -2679,7 +2679,7 @@
 status_t Camera3Device::registerInFlight(uint32_t frameNumber,
         int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
         bool hasAppCallback, nsecs_t minExpectedDuration, nsecs_t maxExpectedDuration,
-        const std::set<std::set<String8>>& physicalCameraIds,
+        bool isFixedFps, const std::set<std::set<String8>>& physicalCameraIds,
         bool isStillCapture, bool isZslCapture, bool rotateAndCropAuto,
         const std::set<std::string>& cameraIdsWithZoom,
         const SurfaceMap& outputSurfaces, nsecs_t requestTimeNs) {
@@ -2688,7 +2688,7 @@
 
     ssize_t res;
     res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers, resultExtras, hasInput,
-            hasAppCallback, minExpectedDuration, maxExpectedDuration, physicalCameraIds,
+            hasAppCallback, minExpectedDuration, maxExpectedDuration, isFixedFps, physicalCameraIds,
             isStillCapture, isZslCapture, rotateAndCropAuto, cameraIdsWithZoom, requestTimeNs,
             outputSurfaces));
     if (res < 0) return res;
@@ -3248,16 +3248,18 @@
     return true;
 }
 
-std::pair<nsecs_t, nsecs_t> Camera3Device::RequestThread::calculateExpectedDurationRange(
-        const camera_metadata_t *request) {
-    std::pair<nsecs_t, nsecs_t> expectedRange(
+Camera3Device::RequestThread::ExpectedDurationInfo
+        Camera3Device::RequestThread::calculateExpectedDurationRange(
+                const camera_metadata_t *request) {
+    ExpectedDurationInfo expectedDurationInfo = {
             InFlightRequest::kDefaultMinExpectedDuration,
-            InFlightRequest::kDefaultMaxExpectedDuration);
+            InFlightRequest::kDefaultMaxExpectedDuration,
+            /*isFixedFps*/false};
     camera_metadata_ro_entry_t e = camera_metadata_ro_entry_t();
     find_camera_metadata_ro_entry(request,
             ANDROID_CONTROL_AE_MODE,
             &e);
-    if (e.count == 0) return expectedRange;
+    if (e.count == 0) return expectedDurationInfo;
 
     switch (e.data.u8[0]) {
         case ANDROID_CONTROL_AE_MODE_OFF:
@@ -3265,29 +3267,32 @@
                     ANDROID_SENSOR_EXPOSURE_TIME,
                     &e);
             if (e.count > 0) {
-                expectedRange.first = e.data.i64[0];
-                expectedRange.second = expectedRange.first;
+                expectedDurationInfo.minDuration = e.data.i64[0];
+                expectedDurationInfo.maxDuration = expectedDurationInfo.minDuration;
             }
             find_camera_metadata_ro_entry(request,
                     ANDROID_SENSOR_FRAME_DURATION,
                     &e);
             if (e.count > 0) {
-                expectedRange.first = std::max(e.data.i64[0], expectedRange.first);
-                expectedRange.second = expectedRange.first;
+                expectedDurationInfo.minDuration =
+                        std::max(e.data.i64[0], expectedDurationInfo.minDuration);
+                expectedDurationInfo.maxDuration = expectedDurationInfo.minDuration;
             }
+            expectedDurationInfo.isFixedFps = false;
             break;
         default:
             find_camera_metadata_ro_entry(request,
                     ANDROID_CONTROL_AE_TARGET_FPS_RANGE,
                     &e);
             if (e.count > 1) {
-                expectedRange.first = 1e9 / e.data.i32[1];
-                expectedRange.second = 1e9 / e.data.i32[0];
+                expectedDurationInfo.minDuration = 1e9 / e.data.i32[1];
+                expectedDurationInfo.maxDuration = 1e9 / e.data.i32[0];
             }
+            expectedDurationInfo.isFixedFps = (e.data.i32[1] == e.data.i32[0]);
             break;
     }
 
-    return expectedRange;
+    return expectedDurationInfo;
 }
 
 bool Camera3Device::RequestThread::skipHFRTargetFPSUpdate(int32_t tag,
@@ -3902,13 +3907,14 @@
                 isZslCapture = true;
             }
         }
-        auto expectedDurationRange = calculateExpectedDurationRange(settings);
+        auto expectedDurationInfo = calculateExpectedDurationRange(settings);
         res = parent->registerInFlight(halRequest->frame_number,
                 totalNumBuffers, captureRequest->mResultExtras,
                 /*hasInput*/halRequest->input_buffer != NULL,
                 hasCallback,
-                /*min*/expectedDurationRange.first,
-                /*max*/expectedDurationRange.second,
+                expectedDurationInfo.minDuration,
+                expectedDurationInfo.maxDuration,
+                expectedDurationInfo.isFixedFps,
                 requestedPhysicalCameras, isStillCapture, isZslCapture,
                 captureRequest->mRotateAndCropAuto, mPrevCameraIdsWithZoom,
                 (mUseHalBufManager) ? uniqueSurfaceIdMap :
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 3c5cb78..bcb7695 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -967,8 +967,13 @@
         // send request in mNextRequests to HAL in a batch. Return true = sucssess
         bool sendRequestsBatch();
 
-        // Calculate the expected (minimum, maximum) duration range for a request
-        std::pair<nsecs_t, nsecs_t> calculateExpectedDurationRange(
+        // Calculate the expected (minimum, maximum, isFixedFps) duration info for a request
+        struct ExpectedDurationInfo {
+            nsecs_t minDuration;
+            nsecs_t maxDuration;
+            bool isFixedFps;
+        };
+        ExpectedDurationInfo calculateExpectedDurationRange(
                 const camera_metadata_t *request);
 
         // Check and update latest session parameters based on the current request settings.
@@ -1087,7 +1092,7 @@
     status_t registerInFlight(uint32_t frameNumber,
             int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
             bool callback, nsecs_t minExpectedDuration, nsecs_t maxExpectedDuration,
-            const std::set<std::set<String8>>& physicalCameraIds,
+            bool isFixedFps, const std::set<std::set<String8>>& physicalCameraIds,
             bool isStillCapture, bool isZslCapture, bool rotateAndCropAuto,
             const std::set<std::string>& cameraIdsWithZoom, const SurfaceMap& outputSurfaces,
             nsecs_t requestTimeNs);
@@ -1339,6 +1344,9 @@
 
     // The current minimum expected frame duration based on AE_TARGET_FPS_RANGE
     nsecs_t mMinExpectedDuration = 0;
+    // Whether the camera device runs at fixed frame rate based on AE_MODE and
+    // AE_TARGET_FPS_RANGE
+    bool mIsFixedFps = false;
 
     // Injection camera related methods.
     class Camera3DeviceInjectionMethods : public virtual RefBase {
diff --git a/services/camera/libcameraservice/device3/Camera3FakeStream.h b/services/camera/libcameraservice/device3/Camera3FakeStream.h
index 8cecabd..a93d1da 100644
--- a/services/camera/libcameraservice/device3/Camera3FakeStream.h
+++ b/services/camera/libcameraservice/device3/Camera3FakeStream.h
@@ -100,7 +100,7 @@
 
     virtual status_t setBatchSize(size_t batchSize) override;
 
-    virtual void onMinDurationChanged(nsecs_t /*duration*/) {}
+    virtual void onMinDurationChanged(nsecs_t /*duration*/, bool /*fixedFps*/) {}
   protected:
 
     /**
diff --git a/services/camera/libcameraservice/device3/Camera3OfflineSession.h b/services/camera/libcameraservice/device3/Camera3OfflineSession.h
index a799719..5ee6ca5 100644
--- a/services/camera/libcameraservice/device3/Camera3OfflineSession.h
+++ b/services/camera/libcameraservice/device3/Camera3OfflineSession.h
@@ -248,6 +248,9 @@
 
     // The current minimum expected frame duration based on AE_TARGET_FPS_RANGE
     nsecs_t mMinExpectedDuration = 0;
+    // Whether the camera device runs at fixed frame rate based on AE_MODE and
+    // AE_TARGET_FPS_RANGE
+    bool mIsFixedFps = false;
 
     // SetErrorInterface
     void setErrorState(const char *fmt, ...) override;
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index 69163a5..50314cc 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -1367,9 +1367,10 @@
     return OK;
 }
 
-void Camera3OutputStream::onMinDurationChanged(nsecs_t duration) {
+void Camera3OutputStream::onMinDurationChanged(nsecs_t duration, bool fixedFps) {
     Mutex::Autolock l(mLock);
     mMinExpectedDuration = duration;
+    mFixedFps = fixedFps;
 }
 
 void Camera3OutputStream::returnPrefetchedBuffersLocked() {
@@ -1402,17 +1403,21 @@
 
     const VsyncEventData& vsyncEventData = parcelableVsyncEventData.vsync;
     nsecs_t currentTime = systemTime();
+    nsecs_t minPresentT = mLastPresentTime + vsyncEventData.frameInterval / 2;
 
-    // Reset capture to present time offset if:
-    // - More than 1 second between frames.
-    // - The frame duration deviates from multiples of vsync frame intervals.
+    // Find the best presentation time without worrying about previous frame's
+    // presentation time if capture interval is more than kSpacingResetIntervalNs.
+    //
+    // When frame interval is more than 50 ms apart (3 vsyncs for 60hz refresh rate),
+    // there is little risk in starting over and finding the earliest vsync to latch onto.
+    // - Update captureToPresentTime offset to be used for later frames.
+    // - Example use cases:
+    //   - when frame rate drops down to below 20 fps, or
+    //   - A new streaming session starts (stopPreview followed by
+    //   startPreview)
+    //
     nsecs_t captureInterval = t - mLastCaptureTime;
-    float captureToVsyncIntervalRatio = 1.0f * captureInterval / vsyncEventData.frameInterval;
-    float ratioDeviation = std::fabs(
-            captureToVsyncIntervalRatio - std::roundf(captureToVsyncIntervalRatio));
-    if (captureInterval > kSpacingResetIntervalNs ||
-            ratioDeviation >= kMaxIntervalRatioDeviation) {
-        nsecs_t minPresentT = mLastPresentTime + vsyncEventData.frameInterval / 2;
+    if (captureInterval > kSpacingResetIntervalNs) {
         for (size_t i = 0; i < VsyncEventData::kFrameTimelinesLength; i++) {
             const auto& timeline = vsyncEventData.frameTimelines[i];
             if (timeline.deadlineTimestamp >= currentTime &&
@@ -1434,21 +1439,54 @@
     nsecs_t idealPresentT = t + mCaptureToPresentOffset;
     nsecs_t expectedPresentT = mLastPresentTime;
     nsecs_t minDiff = INT64_MAX;
-    // Derive minimum intervals between presentation times based on minimal
+
+    // In fixed FPS case, when frame durations are close to multiples of display refresh
+    // rate, derive minimum intervals between presentation times based on minimal
     // expected duration. The minimum number of Vsyncs is:
     // - 0 if minFrameDuration in (0, 1.5] * vSyncInterval,
     // - 1 if minFrameDuration in (1.5, 2.5] * vSyncInterval,
     // - and so on.
+    //
+    // This spaces out the displaying of the frames so that the frame
+    // presentations are roughly in sync with frame captures.
     int minVsyncs = (mMinExpectedDuration - vsyncEventData.frameInterval / 2) /
             vsyncEventData.frameInterval;
     if (minVsyncs < 0) minVsyncs = 0;
     nsecs_t minInterval = minVsyncs * vsyncEventData.frameInterval;
+
+    // In fixed FPS case, if the frame duration deviates from multiples of
+    // display refresh rate, find the closest Vsync without requiring a minimum
+    // number of Vsync.
+    //
+    // Example: (24fps camera, 60hz refresh):
+    //   capture readout:  |  t1  |  t1  | .. |  t1  | .. |  t1  | .. |  t1  |
+    //   display VSYNC:      | t2 | t2 | ... | t2 | ... | t2 | ... | t2 |
+    //   |  : 1 frame
+    //   t1 : 41.67ms
+    //   t2 : 16.67ms
+    //   t1/t2 = 2.5
+    //
+    //   24fps is a commonly used video frame rate. Because the capture
+    //   interval is 2.5 times of display refresh interval, the minVsyncs
+    //   calculation will directly fall at the boundary condition. In this case,
+    //   we should fall back to the basic logic of finding closest vsync
+    //   timestamp without worrying about minVsyncs.
+    float captureToVsyncIntervalRatio = 1.0f * mMinExpectedDuration / vsyncEventData.frameInterval;
+    float ratioDeviation = std::fabs(
+            captureToVsyncIntervalRatio - std::roundf(captureToVsyncIntervalRatio));
+    bool captureDeviateFromVsync = ratioDeviation >= kMaxIntervalRatioDeviation;
+    bool cameraDisplayInSync = (mFixedFps && !captureDeviateFromVsync);
+
     // Find best timestamp in the vsync timelines:
-    // - Only use at most 3 timelines to avoid long latency
-    // - closest to the ideal present time,
+    // - Only use at most kMaxTimelines timelines to avoid long latency
+    // - closest to the ideal presentation time,
     // - deadline timestamp is greater than the current time, and
-    // - the candidate present time is at least minInterval in the future
-    //   compared to last present time.
+    // - For fixed FPS, if the capture interval doesn't deviate too much from refresh interval,
+    //   the candidate presentation time is at least minInterval in the future compared to last
+    //   presentation time.
+    // - For variable FPS, or if the capture interval deviates from refresh
+    //   interval for more than 5%, find a presentation time closest to the
+    //   (lastPresentationTime + captureToPresentOffset) instead.
     int maxTimelines = std::min(kMaxTimelines, (int)VsyncEventData::kFrameTimelinesLength);
     float biasForShortDelay = 1.0f;
     for (int i = 0; i < maxTimelines; i ++) {
@@ -1461,12 +1499,50 @@
         }
         if (std::abs(vsyncTime.expectedPresentationTime - idealPresentT) < minDiff &&
                 vsyncTime.deadlineTimestamp >= currentTime &&
-                vsyncTime.expectedPresentationTime >
-                mLastPresentTime + minInterval + biasForShortDelay * kTimelineThresholdNs) {
+                ((!cameraDisplayInSync && vsyncTime.expectedPresentationTime > minPresentT) ||
+                 (cameraDisplayInSync && vsyncTime.expectedPresentationTime >
+                mLastPresentTime + minInterval + biasForShortDelay * kTimelineThresholdNs))) {
             expectedPresentT = vsyncTime.expectedPresentationTime;
             minDiff = std::abs(vsyncTime.expectedPresentationTime - idealPresentT);
         }
     }
+
+    if (expectedPresentT == mLastPresentTime && expectedPresentT <=
+            vsyncEventData.frameTimelines[maxTimelines].expectedPresentationTime) {
+        // Couldn't find a reasonable presentation time. Using last frame's
+        // presentation time would cause a frame drop. The best option now
+        // is to use the next VSync as long as the last presentation time
+        // doesn't already has the maximum latency, in which case dropping the
+        // buffer is more desired than increasing latency.
+        //
+        // Example: (60fps camera, 59.9hz refresh):
+        //   capture readout:  | t1 | t1 | .. | t1 | .. | t1 | .. | t1 |
+        //                      \    \    \     \    \    \    \     \   \
+        //   queue to BQ:       |    |    |     |    |    |    |      |    |
+        //                      \    \    \     \    \     \    \      \    \
+        //   display VSYNC:      | t2 | t2 | ... | t2 | ... | t2 | ... | t2 |
+        //
+        //   |: 1 frame
+        //   t1 : 16.67ms
+        //   t2 : 16.69ms
+        //
+        // It takes 833 frames for capture readout count and display VSYNC count to be off
+        // by 1.
+        //  - At frames [0, 832], presentationTime is set to timeline[0]
+        //  - At frames [833, 833*2-1], presentationTime is set to timeline[1]
+        //  - At frames [833*2, 833*3-1] presentationTime is set to timeline[2]
+        //  - At frame 833*3, no presentation time is found because we only
+        //    search for timeline[0..2].
+        //  - Drop one buffer is better than further extend the presentation
+        //    time.
+        //
+        // However, if frame 833*2 arrives 16.67ms early (right after frame
+        // 833*2-1), no presentation time can be found because
+        // getLatestVsyncEventData is called early. In that case, it's better to
+        // set presentation time by offseting last presentation time.
+        expectedPresentT += vsyncEventData.frameInterval;
+    }
+
     mLastCaptureTime = t;
     mLastPresentTime = expectedPresentT;
 
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.h b/services/camera/libcameraservice/device3/Camera3OutputStream.h
index 3587af4..1b4739c 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.h
@@ -247,9 +247,10 @@
     virtual status_t setBatchSize(size_t batchSize = 1) override;
 
     /**
-     * Notify the stream on change of min frame durations.
+     * Notify the stream on change of min frame durations or variable/fixed
+     * frame rate.
      */
-    virtual void onMinDurationChanged(nsecs_t duration) override;
+    virtual void onMinDurationChanged(nsecs_t duration, bool fixedFps) override;
 
     /**
      * Apply ZSL related consumer usage quirk.
@@ -419,6 +420,7 @@
 
     // Re-space frames by overriding timestamp to align with display Vsync.
     // Default is on for SurfaceView bound streams.
+    bool    mFixedFps = false;
     nsecs_t mMinExpectedDuration = 0;
     bool mSyncToDisplay = false;
     DisplayEventReceiver mDisplayEventReceiver;
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h b/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
index a6d4b96..dbc6fe1 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
@@ -110,12 +110,13 @@
     virtual status_t setBatchSize(size_t batchSize = 1) = 0;
 
     /**
-     * Notify the output stream that the minimum frame duration has changed.
+     * Notify the output stream that the minimum frame duration has changed, or
+     * frame rate has switched between variable and fixed.
      *
      * The minimum frame duration is calculated based on the upper bound of
      * AE_TARGET_FPS_RANGE in the capture request.
      */
-    virtual void onMinDurationChanged(nsecs_t duration) = 0;
+    virtual void onMinDurationChanged(nsecs_t duration, bool fixedFps) = 0;
 };
 
 // Helper class to organize a synchronized mapping of stream IDs to stream instances
diff --git a/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp b/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp
index f4e3fad..e16982b 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp
@@ -858,12 +858,14 @@
                 r.resultExtras.hasReadoutTimestamp = true;
                 r.resultExtras.readoutTimestamp = msg.readout_timestamp;
             }
-            if (r.minExpectedDuration != states.minFrameDuration) {
+            if (r.minExpectedDuration != states.minFrameDuration ||
+                    r.isFixedFps != states.isFixedFps) {
                 for (size_t i = 0; i < states.outputStreams.size(); i++) {
                     auto outputStream = states.outputStreams[i];
-                    outputStream->onMinDurationChanged(r.minExpectedDuration);
+                    outputStream->onMinDurationChanged(r.minExpectedDuration, r.isFixedFps);
                 }
                 states.minFrameDuration = r.minExpectedDuration;
+                states.isFixedFps = r.isFixedFps;
             }
             if (r.hasCallback) {
                 ALOGVV("Camera %s: %s: Shutter fired for frame %d (id %d) at %" PRId64,
diff --git a/services/camera/libcameraservice/device3/Camera3OutputUtils.h b/services/camera/libcameraservice/device3/Camera3OutputUtils.h
index d6107c2..8c71c2b 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputUtils.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputUtils.h
@@ -106,6 +106,7 @@
         BufferRecordsInterface& bufferRecordsIntf;
         bool legacyClient;
         nsecs_t& minFrameDuration;
+        bool& isFixedFps;
     };
 
     void processCaptureResult(CaptureOutputStates& states, const camera_capture_result *result);
diff --git a/services/camera/libcameraservice/device3/InFlightRequest.h b/services/camera/libcameraservice/device3/InFlightRequest.h
index fa00495..444445b 100644
--- a/services/camera/libcameraservice/device3/InFlightRequest.h
+++ b/services/camera/libcameraservice/device3/InFlightRequest.h
@@ -152,6 +152,9 @@
     // For auto-exposure modes, equal to 1/(lower end of target FPS range)
     nsecs_t maxExpectedDuration;
 
+    // Whether the FPS range is fixed, aka, minFps == maxFps
+    bool isFixedFps;
+
     // Whether the result metadata for this request is to be skipped. The
     // result metadata should be skipped in the case of
     // REQUEST/RESULT error.
@@ -205,6 +208,7 @@
             hasCallback(true),
             minExpectedDuration(kDefaultMinExpectedDuration),
             maxExpectedDuration(kDefaultMaxExpectedDuration),
+            isFixedFps(false),
             skipResultMetadata(false),
             errorBufStrategy(ERROR_BUF_CACHE),
             stillCapture(false),
@@ -215,7 +219,7 @@
     }
 
     InFlightRequest(int numBuffers, CaptureResultExtras extras, bool hasInput,
-            bool hasAppCallback, nsecs_t minDuration, nsecs_t maxDuration,
+            bool hasAppCallback, nsecs_t minDuration, nsecs_t maxDuration, bool fixedFps,
             const std::set<std::set<String8>>& physicalCameraIdSet, bool isStillCapture,
             bool isZslCapture, bool rotateAndCropAuto, const std::set<std::string>& idsWithZoom,
             nsecs_t requestNs, const SurfaceMap& outSurfaces = SurfaceMap{}) :
@@ -229,6 +233,7 @@
             hasCallback(hasAppCallback),
             minExpectedDuration(minDuration),
             maxExpectedDuration(maxDuration),
+            isFixedFps(fixedFps),
             skipResultMetadata(false),
             errorBufStrategy(ERROR_BUF_CACHE),
             physicalCameraIds(physicalCameraIdSet),
diff --git a/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp b/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp
index c5d81df..ec28d31 100644
--- a/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp
+++ b/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp
@@ -372,7 +372,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this,
-        *this, *(mInterface), mLegacyClient, mMinExpectedDuration}, mResultMetadataQueue
+        *this, *(mInterface), mLegacyClient, mMinExpectedDuration, mIsFixedFps},
+        mResultMetadataQueue
     };
 
     for (const auto& result : results) {
@@ -413,7 +414,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this,
-        *this, *(mInterface), mLegacyClient, mMinExpectedDuration}, mResultMetadataQueue
+        *this, *(mInterface), mLegacyClient, mMinExpectedDuration, mIsFixedFps},
+        mResultMetadataQueue
     };
     for (const auto& msg : msgs) {
         camera3::notify(states, msg);
diff --git a/services/camera/libcameraservice/device3/aidl/AidlCamera3OfflineSession.cpp b/services/camera/libcameraservice/device3/aidl/AidlCamera3OfflineSession.cpp
index 8d4b20f..8ff0b07 100644
--- a/services/camera/libcameraservice/device3/aidl/AidlCamera3OfflineSession.cpp
+++ b/services/camera/libcameraservice/device3/aidl/AidlCamera3OfflineSession.cpp
@@ -124,7 +124,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this,
-        *this, mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration}, mResultMetadataQueue
+        *this, mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration, mIsFixedFps},
+      mResultMetadataQueue
     };
 
     std::lock_guard<std::mutex> lock(mProcessCaptureResultLock);
@@ -169,7 +170,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this,
-        *this, mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration}, mResultMetadataQueue
+        *this, mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration, mIsFixedFps},
+      mResultMetadataQueue
     };
     for (const auto& msg : msgs) {
         camera3::notify(states, msg);
diff --git a/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.cpp b/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.cpp
index 4bb426c..9557692 100644
--- a/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.cpp
+++ b/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.cpp
@@ -363,7 +363,7 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this, *this,
-        *mInterface, mLegacyClient, mMinExpectedDuration}, mResultMetadataQueue
+        *mInterface, mLegacyClient, mMinExpectedDuration, mIsFixedFps}, mResultMetadataQueue
     };
 
     //HidlCaptureOutputStates hidlStates {
@@ -425,7 +425,7 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this, *this,
-        *mInterface, mLegacyClient, mMinExpectedDuration}, mResultMetadataQueue
+        *mInterface, mLegacyClient, mMinExpectedDuration, mIsFixedFps}, mResultMetadataQueue
     };
 
     for (const auto& result : results) {
@@ -472,7 +472,7 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this, *this,
-        *mInterface, mLegacyClient, mMinExpectedDuration}, mResultMetadataQueue
+        *mInterface, mLegacyClient, mMinExpectedDuration, mIsFixedFps}, mResultMetadataQueue
     };
     for (const auto& msg : msgs) {
         camera3::notify(states, msg);
diff --git a/services/camera/libcameraservice/device3/hidl/HidlCamera3OfflineSession.cpp b/services/camera/libcameraservice/device3/hidl/HidlCamera3OfflineSession.cpp
index 5c97f0e..2b4f8a1 100644
--- a/services/camera/libcameraservice/device3/hidl/HidlCamera3OfflineSession.cpp
+++ b/services/camera/libcameraservice/device3/hidl/HidlCamera3OfflineSession.cpp
@@ -105,7 +105,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this, *this,
-        mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration}, mResultMetadataQueue
+        mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration, mIsFixedFps},
+      mResultMetadataQueue
     };
 
     std::lock_guard<std::mutex> lock(mProcessCaptureResultLock);
@@ -145,7 +146,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this, *this,
-        mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration}, mResultMetadataQueue
+        mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration, mIsFixedFps},
+      mResultMetadataQueue
     };
 
     std::lock_guard<std::mutex> lock(mProcessCaptureResultLock);
@@ -180,7 +182,8 @@
         mNumPartialResults, mVendorTagId, mDeviceInfo, mPhysicalDeviceInfoMap,
         mDistortionMappers, mZoomRatioMappers, mRotateAndCropMappers,
         mTagMonitor, mInputStream, mOutputStreams, mSessionStatsBuilder, listener, *this, *this,
-        mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration}, mResultMetadataQueue
+        mBufferRecords, /*legacyClient*/ false, mMinExpectedDuration, mIsFixedFps},
+      mResultMetadataQueue
     };
     for (const auto& msg : msgs) {
         camera3::notify(states, msg);