Add initial metadata lens correction handling

rtengine/lensmetadata.cc

@@ -0,0 +1,42 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2024 Rawtherapee developers
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <array>
+#include <iostream>
+
+#include "lensmetadata.h"
+
+namespace rtengine
+{
+
+std::unique_ptr<MetadataLensCorrection> MetadataLensCorrectionFinder::findCorrection(const FramesMetaData *meta)
+{
+    static const std::unordered_set<std::string> makers = {};
+
+    std::string make = Glib::ustring(meta->getMake()).uppercase();
+
+    if (makers.find(make) == makers.end()) {
+        return nullptr;
+    }
+
+    std::unique_ptr<MetadataLensCorrection> correction;
+
+    return correction;
+}
+
+} // namespace rtengine