diff --git a/app/src/main/cpp/camera2/ndkcamera.cpp b/app/src/main/cpp/camera2/ndkcamera.cpp
index b9201606..5ad28161 100644
--- a/app/src/main/cpp/camera2/ndkcamera.cpp
+++ b/app/src/main/cpp/camera2/ndkcamera.cpp
@@ -286,7 +286,9 @@ int NdkCamera::open(const std::string& cameraId) {
 
             for (int i = 0; i < e.count; i += 4)
             {
+                int32_t input = e.data.i32[i + 3];
                 if (input) continue;
+                int32_t format = e.data.i32[i + 0];
 
                 if (format == AIMAGE_FORMAT_YUV_420_888/* || format == AIMAGE_FORMAT_JPEG*/)
                 {