Adds CPP implementatinon

src/proto_loader.hpp

@@ -0,0 +1,24 @@
+#ifndef PROTOLOADER_HPP_
+#define PROTOLOADER_HPP_
+
+#include "data.hpp"
+#include "protocol_buffers_definitions/recordings.pb.h"
+#include <vector>
+
+
+class ProtoLoader {
+public:
+  explicit ProtoLoader(char const* file_path);
+  ~ProtoLoader();
+
+  std::vector<Magnetic> magnetics() const;
+  std::vector<Position> groundtruth() const;
+
+  static constexpr double dt_min{1e-3};
+
+private:
+  char const* filePath_;
+  ::indoors::proto::Recording recording_;
+};
+
+#endif /* PROTOLOADER_HPP_ */