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d81e26d360
GPSProcessingMethod and UserComment in EXIF tags can be in UTF-16. Expand setString to take an encoding when the field type is undefined. Update callers accordingly. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2020, Google Inc.
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*
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* exif.h - EXIF tag creator using libexif
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*/
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#ifndef __ANDROID_JPEG_EXIF_H__
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#define __ANDROID_JPEG_EXIF_H__
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#include <string>
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#include <time.h>
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#include <libexif/exif-data.h>
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#include <libcamera/geometry.h>
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#include <libcamera/span.h>
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class Exif
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{
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public:
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Exif();
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~Exif();
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enum Compression {
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None = 1,
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JPEG = 6,
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};
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enum StringEncoding {
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NoEncoding = 0,
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ASCII = 1,
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Unicode = 2,
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};
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void setMake(const std::string &make);
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void setModel(const std::string &model);
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void setOrientation(int orientation);
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void setSize(const libcamera::Size &size);
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void setThumbnail(libcamera::Span<const unsigned char> thumbnail,
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Compression compression);
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void setTimestamp(time_t timestamp);
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libcamera::Span<const uint8_t> data() const { return { exifData_, size_ }; }
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[[nodiscard]] int generate();
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private:
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ExifEntry *createEntry(ExifIfd ifd, ExifTag tag);
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ExifEntry *createEntry(ExifIfd ifd, ExifTag tag, ExifFormat format,
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unsigned long components, unsigned int size);
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void setShort(ExifIfd ifd, ExifTag tag, uint16_t item);
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void setLong(ExifIfd ifd, ExifTag tag, uint32_t item);
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void setString(ExifIfd ifd, ExifTag tag, ExifFormat format,
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const std::string &item,
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StringEncoding encoding = NoEncoding);
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void setRational(ExifIfd ifd, ExifTag tag, ExifRational item);
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std::u16string utf8ToUtf16(const std::string &str);
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bool valid_;
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ExifData *data_;
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ExifMem *mem_;
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ExifByteOrder order_;
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unsigned char *exifData_;
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unsigned int size_;
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};
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#endif /* __ANDROID_JPEG_EXIF_H__ */
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