// Copyright (c) 2022, ETH Zurich and UNC Chapel Hill.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
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//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
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//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
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//     * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
//       its contributors may be used to endorse or promote products derived
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de)

#ifndef COLMAP_SRC_BASE_CAMERA_DATABASE_H_
#define COLMAP_SRC_BASE_CAMERA_DATABASE_H_

#include <string>

#include "util/camera_specs.h"

namespace colmap {

// Database that contains sensor widths for many cameras, which is useful
// to automatically extract the focal length if EXIF information is incomplete.
class CameraDatabase {
 public:
  CameraDatabase();

  size_t NumEntries() const { return specs_.size(); }

  bool QuerySensorWidth(const std::string& make, const std::string& model,
                        double* sensor_width);

 private:
  static const camera_specs_t specs_;
};

}  // namespace colmap

#endif  // COLMAP_SRC_BASE_CAMERA_DATABASE_H_