diff --git a/app/src/main/cpp/camera2/ndkcamera.cpp b/app/src/main/cpp/camera2/ndkcamera.cpp
index 39adc479..bb5bda93 100644
--- a/app/src/main/cpp/camera2/ndkcamera.cpp
+++ b/app/src/main/cpp/camera2/ndkcamera.cpp
@@ -1004,6 +1004,7 @@ void NdkCamera::close()
 	mPreviewResults.reset();
 	mCaptureResults.clear();
 	mCaptureFrames.clear();
+    mCaptureResultMap.clear();
 
 	if ((ACameraManager *)camera_manager != NULL)
 	{
@@ -1324,6 +1325,8 @@ void NdkCamera::onImageAvailable(AImageReader* reader)
 				}
 				m_photoTaken = true;
 
+                int64_t frameTs = 0;
+                mstatus = AImage_getTimestamp(image, &frameTs);
 				AImage_delete(image);
 
 				bool captureCompleted = false;
@@ -1331,13 +1334,26 @@ void NdkCamera::onImageAvailable(AImageReader* reader)
 				m_locker.lock();
 				if (!frame.empty())
 				{
-					mOneFrame.push_back(frame);
+					mOneFrame.push_back(std::make_pair<>(frameTs, frame));
 				}
-				if (mCaptureResults.size() == expectedTimes && mOneFrame.size() == expectedTimes)
-				{
-					captureCompleted = true;
-				}
-				if (captureCompleted && !mCaptureDispatched)
+                if (mOneFrame.size() >= expectedTimes)
+                {
+                    bool allExisted = true;
+                    for (auto itFrame = mOneFrame.cbegin(); itFrame != mOneFrame.cend(); ++itFrame)
+                    {
+                        if (mCaptureResultMap.find(itFrame->first) == mCaptureResultMap.cend())
+                        {
+                            allExisted = false;
+                            break;
+                        }
+                    }
+                    if (allExisted)
+                    {
+                        captureCompleted = true;
+                    }
+                }
+
+                if (captureCompleted && !mCaptureDispatched)
 				{
 					mCaptureDispatched = true;
 					captureDispatchable = true;
@@ -1814,12 +1830,32 @@ void NdkCamera::onCaptureCompleted(ACameraCaptureSession* session, ACaptureReque
 		bool captureDispatchable = false;
 		size_t expectedTimes = mCaptureRequests.size() - 1;
 
+        int64_t resultTimestamp = GetTimestamp(result);
         std::shared_ptr<ACameraMetadata> captureResult(pCopy, ACameraMetadata_free);
+
 		if (m_params.burstRawCapture == 0)
 		{
 			m_locker.lock();
 			mCaptureResults.push_back(captureResult);
-			captureCompleted = mCaptureFrames.size() >= expectedTimes && mCaptureResults.size() >= expectedTimes;
+            mCaptureResultMap[resultTimestamp] = captureResult;
+
+			if (mOneFrame.size() >= expectedTimes)
+            {
+                bool allExisted = true;
+                for (auto itFrame = mOneFrame.cbegin(); itFrame != mOneFrame.cend(); ++itFrame)
+                {
+                    if (mCaptureResultMap.find(itFrame->first) == mCaptureResultMap.cend())
+                    {
+                        allExisted = false;
+                        break;
+                    }
+                }
+                if (allExisted)
+                {
+                    captureCompleted = true;
+                }
+            }
+
 			if (captureCompleted && !mCaptureDispatched)
 			{
 				mCaptureDispatched = true;
@@ -1856,6 +1892,18 @@ void NdkCamera::onCaptureCompleted(ACameraCaptureSession* session, ACaptureReque
 	}
 }
 
+int64_t NdkCamera::GetTimestamp(const ACameraMetadata* result)
+{
+    ACameraMetadata_const_entry entry;
+    camera_status_t status = ACameraMetadata_getConstEntry(result, ACAMERA_SENSOR_TIMESTAMP, &entry);
+
+    if (status == ACAMERA_OK && entry.count > 0) {
+        return entry.data.i64[0];
+    }
+
+    return 0;
+}
+
 void NdkCamera::FireOneCapture(uint64_t ts)
 {
 #ifdef OUTPUT_DBG_INFO
@@ -1866,7 +1914,6 @@ void NdkCamera::FireOneCapture(uint64_t ts)
         params.push_back(cv::IMWRITE_JPEG_QUALITY);
         params.push_back(50);
 
-
         for (auto it = mOneFrame.cbegin(); it != mOneFrame.cend(); ++it)
         {
             std::string fileName = "/sdcard/com.xypower.mpapp/tmp/" + dt;
@@ -1876,11 +1923,11 @@ void NdkCamera::FireOneCapture(uint64_t ts)
             EnumCameraResult(result.get(), captureResult);
 
             fileName += "_" + mCameraId + "_" + std::to_string(captureResult.aeState) + "_" + std::to_string(idx) + ".jpg";
-            cv::imwrite(fileName, *it, params);
+            cv::imwrite(fileName, it->second, params);
         }
     }
 #endif
-	onOneCapture(mCharacteristics, mCaptureResults.back(), mFinalLdr, ts - m_startTime, mOneFrame.back());
+	onOneCapture(mCharacteristics, mCaptureResults.back(), mFinalLdr, ts - m_startTime, mOneFrame.back().second);
 }
 
 void NdkCamera::FireBurstCapture()
diff --git a/app/src/main/cpp/camera2/ndkcamera.h b/app/src/main/cpp/camera2/ndkcamera.h
index 94dbde8f..fe4384eb 100644
--- a/app/src/main/cpp/camera2/ndkcamera.h
+++ b/app/src/main/cpp/camera2/ndkcamera.h
@@ -23,6 +23,7 @@
 #include <opencv2/core/core.hpp>
 #include "Camera2Helper.h"
 #include <mutex>
+#include <map>
 #include <set>
 
 /**
@@ -196,6 +197,7 @@ public:
     }
 
     bool IsCameraAvailable(const std::string& cameraId);
+    int64_t GetTimestamp(const ACameraMetadata* result);
 
     static bool convertAImageToNv21(AImage* image, uint8_t** nv21, int32_t& width, int32_t& height);
     static void EnumCameraResult(ACameraMetadata* result, CAPTURE_RESULT& captureResult);
@@ -273,6 +275,7 @@ protected:
 
     std::shared_ptr<ACameraMetadata> mPreviewResults;
     std::vector<std::shared_ptr<ACameraMetadata> > mCaptureResults;
+    std::map<int64_t, std::shared_ptr<ACameraMetadata> > mCaptureResultMap;
     uint32_t mLdr;
     uint32_t mFinalLdr;
     uint32_t mFinalBurstCaptures;
@@ -280,7 +283,7 @@ protected:
     std::vector<std::shared_ptr<AImage> > mCaptureFrames;
 
     // cv::Mat mOneFrame;
-    std::vector<cv::Mat> mOneFrame;
+    std::vector<std::pair<int64_t, cv::Mat> > mOneFrame;
     std::vector<std::vector<uint8_t> >  mRawFrames;
 
     // AImageReader* image_reader;