diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.cpp b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
index f781ded..1469b74 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
@@ -85,6 +85,9 @@
                         /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/false);
     mBuffersInFlight.push_back(bufferItem);
 
+    mFrameCount++;
+    mLastTimestamp = bufferItem.mTimestamp;
+
     return OK;
 }
 
@@ -220,6 +223,7 @@
 
     mHandoutTotalBufferCount = 0;
     mFrameCount = 0;
+    mLastTimestamp = 0;
 
     if (mConsumer.get() == 0) {
         sp<IGraphicBufferProducer> producer;
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index b5883e3..f971116 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -239,6 +239,7 @@
     }
 
     mLastTimestamp = timestamp;
+    mFrameCount++;
 
     return OK;
 }