1 // Copyright (c) 2016 The WebM project authors. All Rights Reserved. 2 // 3 // Use of this source code is governed by a BSD-style license 4 // that can be found in the LICENSE file in the root of the source 5 // tree. An additional intellectual property rights grant can be found 6 // in the file PATENTS. All contributing project authors may 7 // be found in the AUTHORS file in the root of the source tree. 8 #ifndef SRC_ID_PARSER_H_ 9 #define SRC_ID_PARSER_H_ 10 11 #include <cstdint> 12 13 #include "src/parser.h" 14 #include "webm/callback.h" 15 #include "webm/id.h" 16 #include "webm/reader.h" 17 #include "webm/status.h" 18 19 namespace webm { 20 21 // Parses an EBML ID from a byte stream. 22 class IdParser : public Parser { 23 public: 24 IdParser() = default; 25 IdParser(IdParser&&) = default; 26 IdParser& operator=(IdParser&&) = default; 27 28 IdParser(const IdParser&) = delete; 29 IdParser& operator=(const IdParser&) = delete; 30 31 Status Feed(Callback* callback, Reader* reader, 32 std::uint64_t* num_bytes_read) override; 33 34 // Gets the parsed ID. This must not be called until the parse had been 35 // successfully completed. 36 Id id() const; 37 38 private: 39 int num_bytes_remaining_ = -1; 40 Id id_; 41 }; 42 43 } // namespace webm 44 45 #endif // SRC_ID_PARSER_H_ 46