diff --git a/app/src/main/cpp/camera2/ndkcamera.cpp b/app/src/main/cpp/camera2/ndkcamera.cpp
index 7b556194..d57254db 100644
--- a/app/src/main/cpp/camera2/ndkcamera.cpp
+++ b/app/src/main/cpp/camera2/ndkcamera.cpp
@@ -32,6 +32,7 @@
 #ifdef _DEBUG
 void Auto_AImage_delete(AImage* image)
 {
+	XYLOG(XYLOG_SEVERITY_DEBUG,"delete image");
     AImage_delete(image);
 }
 #else
@@ -1053,7 +1054,6 @@ void NdkCamera::close()
 		//XYLOG(XYLOG_SEVERITY_DEBUG, "CameraStatus::AImageReader_delete %s", mCameraId.c_str());
 		AImageReader_delete(mPreviewImageReader);
 		//XYLOG(XYLOG_SEVERITY_DEBUG, "CameraStatus::End AImageReader_delete %s", mCameraId.c_str());
-
 		mPreviewImageReader = 0;
 	}
 
@@ -1071,9 +1071,17 @@ void NdkCamera::close()
 
 	if (mImageReader != NULL)
 	{
+		AImage* image = NULL;
+		int32_t status;
+		while ((status = AImageReader_acquireNextImage(mImageReader, &image)) == AMEDIA_OK) {
+			AImage_delete(image);
+			image = NULL;
+		}
 		AImageReader_setImageListener(mImageReader, NULL);
+        XYLOG(XYLOG_SEVERITY_DEBUG, "clear mImageReader Listener");
 		//XYLOG(XYLOG_SEVERITY_DEBUG, "CameraStatus::AImageReader_delete %s", mCameraId.c_str());
 		AImageReader_delete(mImageReader);
+        XYLOG(XYLOG_SEVERITY_DEBUG, "delete mImageReader");
 		//XYLOG(XYLOG_SEVERITY_DEBUG, "CameraStatus::End AImageReader_delete %s", mCameraId.c_str());
 		mImageReader = 0;
 	}
@@ -1325,6 +1333,7 @@ void NdkCamera::onImageAvailable(AImageReader* reader)
 
 				m_photoTaken = true;
 				m_locker.lock();
+				XYLOG(XYLOG_SEVERITY_DEBUG,"push image");
 				mCaptureFrames.push_back(std::shared_ptr<AImage>(image, Auto_AImage_delete));
 				m_locker.unlock();