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_SIZE_PARSER_H_ 9 #define SRC_SIZE_PARSER_H_ 10 11 #include <cstdint> 12 13 #include "src/parser.h" 14 #include "src/var_int_parser.h" 15 #include "webm/callback.h" 16 #include "webm/reader.h" 17 #include "webm/status.h" 18 19 namespace webm { 20 21 class SizeParser : public Parser { 22 public: 23 SizeParser() = default; 24 SizeParser(SizeParser&&) = default; 25 SizeParser& operator=(SizeParser&&) = default; 26 27 SizeParser(const SizeParser&) = delete; 28 SizeParser& operator=(const SizeParser&) = delete; 29 30 Status Feed(Callback* callback, Reader* reader, 31 std::uint64_t* num_bytes_read) override; 32 33 // Gets the parsed size. This must not be called until the parse had been 34 // successfully completed. 35 std::uint64_t size() const; 36 37 private: 38 VarIntParser uint_parser_; 39 }; 40 41 } // namespace webm 42 43 #endif // SRC_SIZE_PARSER_H_ 44