diff --git a/include/media/stagefright/CameraSource.h b/include/media/stagefright/CameraSource.h
index 64c3044..c594eb2 100644
--- a/include/media/stagefright/CameraSource.h
+++ b/include/media/stagefright/CameraSource.h
@@ -219,6 +219,9 @@
     virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
             const sp<IMemory> &data);
 
+    // Process a buffer item received in BufferQueueListener.
+    virtual void processBufferQueueFrame(BufferItem& buffer);
+
     void releaseCamera();
 
 private:
@@ -260,8 +263,6 @@
 
     void releaseQueuedFrames();
     void releaseOneRecordingFrame(const sp<IMemory>& frame);
-    // Process a buffer item received in BufferQueueListener.
-    void processBufferQueueFrame(const BufferItem& buffer);
 
     status_t init(const sp<ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
                   int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
diff --git a/include/media/stagefright/CameraSourceTimeLapse.h b/include/media/stagefright/CameraSourceTimeLapse.h
index 1023027..785710a 100644
--- a/include/media/stagefright/CameraSourceTimeLapse.h
+++ b/include/media/stagefright/CameraSourceTimeLapse.h
@@ -137,9 +137,15 @@
     // In the video camera case calls skipFrameAndModifyTimeStamp() to modify
     // timestamp and set mSkipCurrentFrame.
     // Then it calls the base CameraSource::dataCallbackTimestamp()
+    // This will be called in VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV and
+    // VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA mode.
     virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
             const sp<IMemory> &data);
 
+    // Process a buffer item received in CameraSource::BufferQueueListener.
+    // This will be called in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+    virtual void processBufferQueueFrame(BufferItem& buffer);
+
     // Convenience function to fill mLastReadBufferCopy from the just read
     // buffer.
     void fillLastReadBufferCopy(MediaBuffer& sourceBuffer);
diff --git a/media/libstagefright/CameraSource.cpp b/media/libstagefright/CameraSource.cpp
index 4f88d9c..ce507fb 100644
--- a/media/libstagefright/CameraSource.cpp
+++ b/media/libstagefright/CameraSource.cpp
@@ -1114,7 +1114,7 @@
     return true;
 }
 
-void CameraSource::processBufferQueueFrame(const BufferItem& buffer) {
+void CameraSource::processBufferQueueFrame(BufferItem& buffer) {
     Mutex::Autolock autoLock(mLock);
 
     int64_t timestampUs = buffer.mTimestamp / 1000;
diff --git a/media/libstagefright/CameraSourceTimeLapse.cpp b/media/libstagefright/CameraSourceTimeLapse.cpp
index 202ec42..535909e 100644
--- a/media/libstagefright/CameraSourceTimeLapse.cpp
+++ b/media/libstagefright/CameraSourceTimeLapse.cpp
@@ -308,4 +308,12 @@
     CameraSource::dataCallbackTimestamp(timestampUs, msgType, data);
 }
 
+void CameraSourceTimeLapse::processBufferQueueFrame(BufferItem& buffer) {
+    ALOGV("processBufferQueueFrame");
+    int64_t timestampUs = buffer.mTimestamp / 1000;
+    mSkipCurrentFrame = skipFrameAndModifyTimeStamp(&timestampUs);
+    buffer.mTimestamp = timestampUs * 1000;
+    CameraSource::processBufferQueueFrame(buffer);
+}
+
 }  // namespace android