1 files changed, 42 insertions, 0 deletions
diff --git a/includes/image_io/jpeg/jpeg_xmp_info_builder.h b/includes/image_io/jpeg/jpeg_xmp_info_builder.h
new file mode 100644
index 0000000..62b3ac4
--- /dev/null
+++ b/includes/image_io/jpeg/jpeg_xmp_info_builder.h
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+#ifndef IMAGE_IO_JPEG_JPEG_XMP_INFO_BUILDER_H_  // NOLINT
+#define IMAGE_IO_JPEG_JPEG_XMP_INFO_BUILDER_H_  // NOLINT
+
+#include <vector>
+
+#include "image_io/jpeg/jpeg_segment.h"
+#include "image_io/jpeg/jpeg_xmp_info.h"
+
+namespace photos_editing_formats {
+namespace image_io {
+
+/// A helper class for building information about the segments that contain
+/// extended xmp data of various types.
+class JpegXmpInfoBuilder {
+ public:
+  /// @param xmp_info_type The type of xmp information to build.
+  explicit JpegXmpInfoBuilder(JpegXmpInfo::Type xmp_info_type)
+      : xmp_info_type_(xmp_info_type) {}
+
+  /// @param segment The segment to examine for xmp data.
+  void ProcessSegment(const JpegSegment& segment);
+
+  /// @return The vector of segment data ranges that contains xmp property data.
+  const std::vector<DataRange>& GetPropertySegmentRanges() const {
+    return property_segment_ranges_;
+  }
+
+ private:
+  /// The type of xmp data to collect.
+  JpegXmpInfo::Type xmp_info_type_;
+
+  /// The vector of segment data ranges that contains xmp property data.
+  std::vector<DataRange> property_segment_ranges_;
+
+  /// The segment data range that contains the xmp property data end.
+  DataRange property_end_segment_range_;
+};
+
+}  // namespace image_io
+}  // namespace photos_editing_formats
+
+#endif // IMAGE_IO_JPEG_JPEG_XMP_INFO_BUILDER_H_  // NOLINT