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diff --git a/src/piex_types.h b/src/piex_types.h
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--- a/src/piex_types.h
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@@ -1,125 +0,0 @@
-// Copyright 2015 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-////////////////////////////////////////////////////////////////////////////////
-
-#ifndef PIEX_PIEX_TYPES_H_
-#define PIEX_PIEX_TYPES_H_
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace piex {
-
-// Defines the error codes used by piex.
-enum Error {
-  kOk,
-  kFail,
-  kUnsupported,
-};
-
-// Defines the properties of an image. width and height are required for
-// uncompressed images, but are optional for compressed images. An image is
-// invalid when its length is 0.
-struct Image {
-  enum Format {
-    kJpegCompressed,
-    kUncompressedRgb,
-    kHevcCompressed,
-  };
-
-  std::uint16_t width = 0;
-  std::uint16_t height = 0;
-  std::uint32_t length = 0;
-  std::uint32_t offset = 0;
-  Format format = kJpegCompressed;
-
-  bool operator>(const Image& rhs) const {
-    return width > rhs.width && height > rhs.height;
-  }
-};
-
-// Contains relevant image information as well as the 'preview_offset' and the
-// 'preview_length' which are used to obtain the JPEG compressed preview image.
-// 'full_width' and 'full_height' are correctly cropped but not rotated.
-struct PreviewImageData {
-  enum ColorSpace {
-    kSrgb,
-    kAdobeRgb,
-  };
-  struct Rational {
-    std::uint32_t numerator = 0;
-    std::uint32_t denominator = 1;
-  };
-  struct Gps {
-    // Indicates if the gps data is valid to use.
-    bool is_valid = false;
-
-    char latitude_ref;  // Either 'N' or 'S'
-    Rational latitude[3];
-    char longitude_ref;  // Either 'E' or 'W'
-    Rational longitude[3];
-    bool altitude_ref = false;  // true is above, false below sea level
-    Rational altitude;
-
-    Rational time_stamp[3];  // Giving hour, minute and second.
-    std::string date_stamp;  // Giving as "YYYY:MM:DD" format.
-  };
-
-  // Optional data to find the preview and thumbnail image to handle them
-  // correctly. A thumbnail is typically 160x120 pixel small and usually
-  // has black borders at the top and bottom. If length is 0 the image could not
-  // be extracted.
-  Image preview;
-  Image thumbnail;
-
-  std::uint32_t exif_orientation = 1;  // horizontal as default
-  ColorSpace color_space = kSrgb;
-
-  // Optional Exif metadata that describes the image.
-  std::uint32_t full_width = 0;
-  std::uint32_t full_height = 0;
-  std::string maker;
-  std::string model;
-  std::string date_time;
-  std::uint32_t iso = 0;
-  Rational exposure_time;
-  Rational fnumber;
-  Rational focal_length;
-  Gps gps;
-
-  // Hint for the mosaic pattern dimension of the RAW image data. (0, 0) implies
-  // that no mosaic info found. It is valid for DNG, NEF and NRW files.
-  std::vector<std::uint32_t> cfa_pattern_dim = std::vector<std::uint32_t>(2, 0);
-};
-
-// Defines the StreamInterface that needs to be implemented by the client.
-class StreamInterface {
- public:
-  virtual ~StreamInterface() {}
-
-  // Reads 'length' amount of bytes from 'offset' to 'data'. The 'data' buffer
-  // provided by the caller, guaranteed to be at least "length" bytes long.
-  // On 'kOk' the 'data' pointer contains 'length' valid bytes beginning at
-  // 'offset' bytes from the start of the stream.
-  // Returns 'kFail' if 'offset' + 'length' exceeds the stream and does not
-  // change the contents of 'data'.
-  virtual Error GetData(const size_t offset, const size_t length,
-                        std::uint8_t* data) = 0;
-};
-
-}  // namespace piex
-
-#endif  // PIEX_PIEX_TYPES_H_