1*103e46e4SHarish Mahendrakar // Copyright (c) 2016 The WebM project authors. All Rights Reserved. 2*103e46e4SHarish Mahendrakar // 3*103e46e4SHarish Mahendrakar // Use of this source code is governed by a BSD-style license 4*103e46e4SHarish Mahendrakar // that can be found in the LICENSE file in the root of the source 5*103e46e4SHarish Mahendrakar // tree. An additional intellectual property rights grant can be found 6*103e46e4SHarish Mahendrakar // in the file PATENTS. All contributing project authors may 7*103e46e4SHarish Mahendrakar // be found in the AUTHORS file in the root of the source tree. 8*103e46e4SHarish Mahendrakar #include "src/parser_utils.h" 9*103e46e4SHarish Mahendrakar 10*103e46e4SHarish Mahendrakar #include <cassert> 11*103e46e4SHarish Mahendrakar #include <cstdint> 12*103e46e4SHarish Mahendrakar 13*103e46e4SHarish Mahendrakar #include "webm/reader.h" 14*103e46e4SHarish Mahendrakar #include "webm/status.h" 15*103e46e4SHarish Mahendrakar 16*103e46e4SHarish Mahendrakar namespace webm { 17*103e46e4SHarish Mahendrakar ReadByte(Reader * reader,std::uint8_t * byte)18*103e46e4SHarish MahendrakarStatus ReadByte(Reader* reader, std::uint8_t* byte) { 19*103e46e4SHarish Mahendrakar assert(reader != nullptr); 20*103e46e4SHarish Mahendrakar assert(byte != nullptr); 21*103e46e4SHarish Mahendrakar 22*103e46e4SHarish Mahendrakar std::uint64_t num_bytes_read; 23*103e46e4SHarish Mahendrakar const Status status = reader->Read(1, byte, &num_bytes_read); 24*103e46e4SHarish Mahendrakar 25*103e46e4SHarish Mahendrakar if (!status.completed_ok()) { 26*103e46e4SHarish Mahendrakar assert(num_bytes_read == 0); 27*103e46e4SHarish Mahendrakar } else { 28*103e46e4SHarish Mahendrakar assert(num_bytes_read == 1); 29*103e46e4SHarish Mahendrakar } 30*103e46e4SHarish Mahendrakar 31*103e46e4SHarish Mahendrakar return status; 32*103e46e4SHarish Mahendrakar } 33*103e46e4SHarish Mahendrakar 34*103e46e4SHarish Mahendrakar } // namespace webm 35