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LibGfx/ISOBMFF: Make BoxStream MaybeOwn its stream
...and make Reader always have a BoxStream.
This commit is contained in:
parent
07750774cf
commit
15ba0a7e18
Notes:
sideshowbarker
2024-07-17 10:16:43 +09:00
Author: https://github.com/nico Commit: https://github.com/SerenityOS/serenity/commit/15ba0a7e18 Pull-request: https://github.com/SerenityOS/serenity/pull/23682 Reviewed-by: https://github.com/LucasChollet Reviewed-by: https://github.com/Zaggy1024 Reviewed-by: https://github.com/timschumi ✅
@ -6,24 +6,25 @@
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#pragma once
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#include <AK/MaybeOwned.h>
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#include <AK/Stream.h>
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namespace Gfx::ISOBMFF {
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class BoxStream final : public Stream {
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public:
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explicit BoxStream(Stream& stream, size_t size)
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: m_stream(stream)
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explicit BoxStream(MaybeOwned<Stream> stream, size_t size)
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: m_stream(move(stream))
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, m_data_left(size)
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{
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}
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virtual bool is_eof() const override { return m_stream.is_eof() || remaining() == 0; }
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virtual bool is_open() const override { return m_stream.is_open(); }
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virtual void close() override { m_stream.close(); }
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virtual bool is_eof() const override { return m_stream->is_eof() || remaining() == 0; }
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virtual bool is_open() const override { return m_stream->is_open(); }
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virtual void close() override { m_stream->close(); }
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virtual ErrorOr<Bytes> read_some(Bytes bytes) override
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{
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auto read_bytes = TRY(m_stream.read_some(bytes));
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auto read_bytes = TRY(m_stream->read_some(bytes));
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m_data_left -= min(read_bytes.size(), m_data_left);
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return read_bytes;
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}
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@ -41,7 +42,7 @@ public:
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}
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private:
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Stream& m_stream;
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MaybeOwned<Stream> m_stream;
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size_t m_data_left;
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};
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@ -11,16 +11,16 @@ namespace Gfx::ISOBMFF {
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ErrorOr<Reader> Reader::create(MaybeOwned<SeekableStream> stream)
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{
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size_t size = TRY(stream->size());
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return Reader(move(stream), size);
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return Reader(make<BoxStream>(move(stream), size));
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}
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ErrorOr<BoxList> Reader::read_entire_file()
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{
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BoxList top_level_boxes;
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while (!m_stream->is_eof()) {
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auto box_header = TRY(read_box_header(m_box_stream));
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BoxStream box_stream { m_box_stream, static_cast<size_t>(box_header.contents_size) };
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while (!m_box_stream->is_eof()) {
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auto box_header = TRY(read_box_header(*m_box_stream));
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BoxStream box_stream { MaybeOwned<Stream> { *m_box_stream }, static_cast<size_t>(box_header.contents_size) };
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switch (box_header.type) {
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case BoxType::FileTypeBox:
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@ -20,14 +20,12 @@ public:
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ErrorOr<BoxList> read_entire_file();
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private:
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Reader(MaybeOwned<SeekableStream> stream, size_t size)
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: m_stream(move(stream))
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, m_box_stream(*m_stream, size)
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Reader(MaybeOwned<BoxStream> stream)
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: m_box_stream(move(stream))
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{
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}
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MaybeOwned<SeekableStream> m_stream;
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BoxStream m_box_stream;
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MaybeOwned<BoxStream> m_box_stream;
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};
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}
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