1 | ///* The copyright in this software is being made available under the BSD |
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2 | // * License, included below. This software may be subject to other third party |
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3 | // * and contributor rights, including patent rights, and no such rights are |
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4 | // * granted under this license. |
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5 | // * |
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6 | // * Copyright (c) 2010-2015, ITU/ISO/IEC |
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7 | // * All rights reserved. |
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8 | // * |
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9 | // * Redistribution and use in source and binary forms, with or without |
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10 | // * modification, are permitted provided that the following conditions are met: |
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11 | // * |
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12 | // * * Redistributions of source code must retain the above copyright notice, |
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13 | // * this list of conditions and the following disclaimer. |
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14 | // * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | // * this list of conditions and the following disclaimer in the documentation |
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16 | // * and/or other materials provided with the distribution. |
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17 | // * * Neither the name of the ISO/IEC nor the names of its contributors may |
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18 | // * be used to endorse or promote products derived from this software without |
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19 | // * specific prior written permission. |
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20 | // * |
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21 | // * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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22 | // * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | // * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | // * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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25 | // * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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26 | // * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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27 | // * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 | // * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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29 | // * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | // * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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31 | // * THE POSSIBILITY OF SUCH DAMAGE. |
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32 | // */ |
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33 | // |
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34 | ///** \file TAppExtrTop.cpp |
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35 | // \brief Extractor application class |
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36 | #include "TAppExtrTop.h" |
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37 | #include "../../Lib/TLibDecoder/AnnexBread.h" |
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38 | #include <fstream> |
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39 | #include <list> |
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40 | #include <stdio.h> |
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41 | #include <fcntl.h> |
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42 | #include <assert.h> |
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43 | |
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44 | #if NH_MV |
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45 | // ==================================================================================================================== |
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46 | // Constructor / destructor / initialization / destroy |
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47 | // ==================================================================================================================== |
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48 | |
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49 | TAppExtrTop::TAppExtrTop() |
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50 | { |
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51 | |
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52 | } |
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53 | |
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54 | TAppExtrTop::~TAppExtrTop() |
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55 | { |
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56 | } |
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57 | |
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58 | // ==================================================================================================================== |
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59 | // Public member functions |
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60 | // ==================================================================================================================== |
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61 | |
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62 | // |
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63 | //until the end of the bitstream, call extraction function in TExtrTop class |
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64 | // |
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65 | |
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66 | Void TAppExtrTop::extract() |
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67 | { |
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68 | |
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69 | ifstream inputBitstreamFile( m_pchInputBitstreamFile, ifstream::in | ifstream::binary ); |
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70 | if( inputBitstreamFile.fail() ) |
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71 | { |
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72 | fprintf( stderr, "\nfailed to open bitstream file `%s' for reading\n", m_pchInputBitstreamFile ); |
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73 | exit( EXIT_FAILURE ); |
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74 | } |
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75 | |
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76 | fstream outputBitstreamFile; |
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77 | if( m_pchOutputBitstreamFile ) |
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78 | { |
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79 | outputBitstreamFile.open( m_pchOutputBitstreamFile, fstream::binary | fstream::out ); |
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80 | if( outputBitstreamFile.fail() ) |
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81 | { |
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82 | fprintf( stderr, "\nfailed to open bitstream file `%s' for writing\n", m_pchOutputBitstreamFile ); |
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83 | exit( EXIT_FAILURE ); |
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84 | } |
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85 | } |
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86 | |
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87 | InputByteStream inputBytestream( inputBitstreamFile ); |
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88 | |
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89 | Bool bEndOfFile = false; |
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90 | while( !bEndOfFile ) |
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91 | { |
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92 | streampos location = inputBitstreamFile.tellg(); |
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93 | AnnexBStats stats = AnnexBStats(); |
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94 | vector<uint8_t> nalUnit; |
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95 | InputNALUnit nalu; |
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96 | bEndOfFile = byteStreamNALUnit( inputBytestream, nalUnit, stats ); |
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97 | |
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98 | // handle NAL unit |
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99 | if( nalUnit.empty() ) |
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100 | { |
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101 | /* this can happen if the following occur: |
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102 | * - empty input file |
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103 | * - two back-to-back start_code_prefixes |
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104 | * - start_code_prefix immediately followed by EOF |
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105 | */ |
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106 | fprintf( stderr, "Warning: Attempt to decode an empty NAL unit\n" ); |
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107 | } |
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108 | else |
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109 | { |
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110 | read( nalu ); |
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111 | |
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112 | // decide whether to extract packet or not |
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113 | if ( m_cTExtrTop.extract( nalu, m_suiExtractLayerIds ) && outputBitstreamFile.is_open() ) |
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114 | { |
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115 | inputBitstreamFile.clear(); |
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116 | |
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117 | streampos location2 = inputBitstreamFile.tellg(); |
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118 | inputBitstreamFile.seekg( location ); |
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119 | |
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120 | do |
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121 | { |
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122 | outputBitstreamFile.put( inputBitstreamFile.get() ); |
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123 | } while( inputBitstreamFile.tellg() != location2 ); |
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124 | } |
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125 | } |
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126 | } |
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127 | |
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128 | inputBitstreamFile.close(); |
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129 | outputBitstreamFile.close(); |
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130 | |
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131 | |
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132 | // write SPS info file |
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133 | if ( m_pchSpsInfoFile ) |
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134 | { |
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135 | fstream cSpsInfoFileHandle( m_pchSpsInfoFile, fstream::binary | fstream::out ); |
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136 | |
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137 | if( cSpsInfoFileHandle.fail() ) |
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138 | { |
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139 | fprintf( stderr, "\nfailed writing SPS info file\n" ); |
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140 | exit( EXIT_FAILURE ); |
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141 | } |
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142 | |
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143 | m_cTExtrTop.dumpSpsInfo( cSpsInfoFileHandle ); |
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144 | |
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145 | cSpsInfoFileHandle.close(); |
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146 | } |
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147 | |
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148 | m_cTExtrTop.dumpVpsInfo( std::cout ); |
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149 | m_cTExtrTop.dumpSpsInfo( std::cout ); |
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150 | |
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151 | } |
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152 | #endif |
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