54 lines
1.6 KiB
54 lines
1.6 KiB
// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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#ifndef SRC_SEGMENT_PARSER_H_
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#define SRC_SEGMENT_PARSER_H_
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#include <cstdint>
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#include "src/master_parser.h"
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#include "webm/callback.h"
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#include "webm/reader.h"
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#include "webm/status.h"
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namespace webm {
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// Parses Segment elements from a WebM byte stream. This class adheres to the
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// ElementParser interface; see element_parser.h for further documentation on
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// how it should be used.
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// Spec reference:
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// http://matroska.org/technical/specs/index.html#Segment
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// http://www.webmproject.org/docs/container/#Segment
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class SegmentParser : public MasterParser {
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public:
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SegmentParser();
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Status Init(const ElementMetadata& metadata, std::uint64_t max_size) override;
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void InitAfterSeek(const Ancestory& child_ancestory,
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const ElementMetadata& child_metadata) override;
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Status Feed(Callback* callback, Reader* reader,
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std::uint64_t* num_bytes_read) override;
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bool WasSkipped() const override;
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private:
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// Set to true iff Callback::OnSegmentBegin has completed.
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bool begin_done_;
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// Set to true iff the base class has completed parsing.
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bool parse_completed_;
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// The action requested by Callback::OnSegmentBegin.
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Action action_ = Action::kRead;
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};
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} // namespace webm
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#endif // SRC_SEGMENT_PARSER_H_
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