fix #3

src/processor/processor_gnss_single_diff.cpp

@@ -29,7 +29,7 @@ void ProcessorGnssSingleDiff::process(CaptureBasePtr _capture_ptr)
     FrameBasePtr new_frame_ptr = nullptr;
 
     // ALREADY CREATED KF
-    PackKeyFramePtr KF_pack = kf_pack_buffer_.selectPack( _capture_ptr, params_->time_tolerance);
+    PackKeyFramePtr KF_pack = buffer_pack_kf_.selectPack( _capture_ptr, params_->time_tolerance);
     if (KF_pack && KF_pack->key_frame != last_capture_ptr_->getOriginFrame())
     {
         new_frame_ptr = KF_pack->key_frame;