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56 lines
1.6 KiB
56 lines
1.6 KiB
4 months ago
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#ifndef DYNAMIC_DEPTH_INCLUDES_XMPMETA_JPEG_IO_H_ // NOLINT
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#define DYNAMIC_DEPTH_INCLUDES_XMPMETA_JPEG_IO_H_ // NOLINT
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#include <string>
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#include <vector>
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#include "base/port.h"
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namespace dynamic_depth {
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namespace xmpmeta {
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// Contains the data for a section in a JPEG file.
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// A JPEG file contains many sections in addition to image data.
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struct Section {
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// Constructors.
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Section() = default;
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explicit Section(const string& buffer);
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// Returns true if the section's marker matches an APP1 marker.
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bool IsMarkerApp1();
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int marker;
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bool is_image_section;
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string data;
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};
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struct ParseOptions {
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// If set to true, keeps only the EXIF and XMP sections (with
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// marker kApp1) and ignores others. Otherwise, keeps everything including
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// image data.
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bool read_meta_only = false;
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// If section_header is set, this boolean controls whether only the 1st
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// section matching the section_header will be returned. If not set
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// (the default), all the sections that math the section header will be
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// returned.
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bool section_header_return_first = false;
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// A filter that keeps all the sections whose data starts with the
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// given string. Ignored if empty.
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string section_header;
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};
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// Parses the JPEG image file.
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std::vector<Section> Parse(const ParseOptions& options,
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std::istream* input_stream);
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// Writes JPEG data sections to a file.
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void WriteSections(const std::vector<Section>& sections,
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std::ostream* output_stream);
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} // namespace xmpmeta
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} // namespace dynamic_depth
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#endif // DYNAMIC_DEPTH_INCLUDES_XMPMETA_JPEG_IO_H_ // NOLINT
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