6eb574a2b6
The Exif metadata is contained in the APP1 segment. We only need to call the TIFF decoder to get the metadata back :^).
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* Copyright (c) 2022-2023, Lucas Chollet <lucas.chollet@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/MemoryStream.h>
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#include <LibGfx/ImageFormats/ImageDecoder.h>
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namespace Gfx {
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struct JPEGLoadingContext;
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// For the specification, see: https://www.w3.org/Graphics/JPEG/itu-t81.pdf
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struct JPEGDecoderOptions {
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enum class CMYK {
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// For standalone jpeg files.
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Normal,
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// For jpeg data embedded in PDF files.
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PDF,
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};
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CMYK cmyk { CMYK::Normal };
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};
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class JPEGImageDecoderPlugin : public ImageDecoderPlugin {
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public:
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static bool sniff(ReadonlyBytes);
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static ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> create(ReadonlyBytes);
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static ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> create_with_options(ReadonlyBytes, JPEGDecoderOptions = {});
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virtual ~JPEGImageDecoderPlugin() override;
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virtual IntSize size() override;
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virtual ErrorOr<ImageFrameDescriptor> frame(size_t index, Optional<IntSize> ideal_size = {}) override;
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virtual Optional<Metadata const&> metadata() override;
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virtual ErrorOr<Optional<ReadonlyBytes>> icc_data() override;
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virtual NaturalFrameFormat natural_frame_format() const override;
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virtual ErrorOr<NonnullRefPtr<CMYKBitmap>> cmyk_frame() override;
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private:
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JPEGImageDecoderPlugin(NonnullOwnPtr<JPEGLoadingContext>);
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NonnullOwnPtr<JPEGLoadingContext> m_context;
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};
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}
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