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 ITU/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 SyntaxElementParser.cpp |
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35 | \brief Parsing functionality high level syntax |
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36 | */ |
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37 | |
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38 | //! \ingroup TLibDecoder |
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39 | //! \{ |
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40 | |
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41 | #include "TLibCommon/CommonDef.h" |
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42 | #include "TLibCommon/TComRom.h" |
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43 | #include "TLibCommon/TComBitStream.h" |
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44 | #include "SyntaxElementParser.h" |
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45 | |
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46 | #if ENC_DEC_TRACE |
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47 | |
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48 | Void SyntaxElementParser::xReadCodeTr (UInt length, UInt& rValue, const Char *pSymbolName) |
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49 | { |
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50 | xReadCode (length, rValue); |
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51 | #if H_MV_ENC_DEC_TRAC |
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52 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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53 | { |
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54 | return; |
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55 | } |
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56 | if ( !g_disableNumbering ) |
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57 | { |
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58 | #endif |
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59 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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60 | #if H_MV_ENC_DEC_TRAC |
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61 | } |
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62 | #endif |
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63 | |
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64 | if (length < 10) |
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65 | { |
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66 | fprintf( g_hTrace, "%-50s u(%d) : %u\n", pSymbolName, length, rValue ); |
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67 | } |
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68 | else |
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69 | { |
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70 | fprintf( g_hTrace, "%-50s u(%d) : %u\n", pSymbolName, length, rValue ); |
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71 | } |
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72 | fflush ( g_hTrace ); |
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73 | } |
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74 | |
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75 | Void SyntaxElementParser::xReadUvlcTr (UInt& rValue, const Char *pSymbolName) |
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76 | { |
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77 | xReadUvlc (rValue); |
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78 | #if H_MV_ENC_DEC_TRAC |
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79 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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80 | { |
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81 | return; |
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82 | } |
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83 | if ( !g_disableNumbering ) |
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84 | { |
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85 | #endif |
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86 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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87 | #if H_MV_ENC_DEC_TRAC |
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88 | } |
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89 | #endif |
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90 | fprintf( g_hTrace, "%-50s ue(v) : %u\n", pSymbolName, rValue ); |
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91 | fflush ( g_hTrace ); |
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92 | } |
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93 | |
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94 | Void SyntaxElementParser::xReadSvlcTr (Int& rValue, const Char *pSymbolName) |
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95 | { |
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96 | xReadSvlc(rValue); |
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97 | #if H_MV_ENC_DEC_TRAC |
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98 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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99 | { |
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100 | return; |
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101 | } |
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102 | if ( !g_disableNumbering ) |
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103 | { |
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104 | #endif |
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105 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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106 | #if H_MV_ENC_DEC_TRAC |
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107 | } |
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108 | #endif |
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109 | |
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110 | fprintf( g_hTrace, "%-50s se(v) : %d\n", pSymbolName, rValue ); |
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111 | fflush ( g_hTrace ); |
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112 | } |
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113 | |
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114 | Void SyntaxElementParser::xReadFlagTr (UInt& rValue, const Char *pSymbolName) |
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115 | { |
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116 | xReadFlag(rValue); |
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117 | #if H_MV_ENC_DEC_TRAC |
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118 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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119 | { |
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120 | return; |
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121 | } |
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122 | if ( !g_disableNumbering ) |
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123 | { |
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124 | #endif |
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125 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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126 | #if H_MV_ENC_DEC_TRAC |
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127 | } |
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128 | #endif |
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129 | fprintf( g_hTrace, "%-50s u(1) : %d\n", pSymbolName, rValue ); |
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130 | fflush ( g_hTrace ); |
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131 | } |
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132 | |
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133 | #endif |
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134 | |
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135 | |
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136 | // ==================================================================================================================== |
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137 | // Protected member functions |
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138 | // ==================================================================================================================== |
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139 | |
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140 | Void SyntaxElementParser::xReadCode (UInt uiLength, UInt& ruiCode) |
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141 | { |
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142 | assert ( uiLength > 0 ); |
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143 | m_pcBitstream->read (uiLength, ruiCode); |
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144 | } |
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145 | |
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146 | Void SyntaxElementParser::xReadUvlc( UInt& ruiVal) |
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147 | { |
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148 | UInt uiVal = 0; |
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149 | UInt uiCode = 0; |
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150 | UInt uiLength; |
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151 | m_pcBitstream->read( 1, uiCode ); |
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152 | |
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153 | if( 0 == uiCode ) |
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154 | { |
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155 | uiLength = 0; |
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156 | |
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157 | while( ! ( uiCode & 1 )) |
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158 | { |
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159 | m_pcBitstream->read( 1, uiCode ); |
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160 | uiLength++; |
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161 | } |
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162 | |
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163 | m_pcBitstream->read( uiLength, uiVal ); |
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164 | |
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165 | uiVal += (1 << uiLength)-1; |
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166 | } |
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167 | |
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168 | ruiVal = uiVal; |
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169 | } |
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170 | |
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171 | Void SyntaxElementParser::xReadSvlc( Int& riVal) |
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172 | { |
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173 | UInt uiBits = 0; |
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174 | m_pcBitstream->read( 1, uiBits ); |
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175 | if( 0 == uiBits ) |
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176 | { |
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177 | UInt uiLength = 0; |
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178 | |
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179 | while( ! ( uiBits & 1 )) |
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180 | { |
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181 | m_pcBitstream->read( 1, uiBits ); |
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182 | uiLength++; |
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183 | } |
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184 | |
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185 | m_pcBitstream->read( uiLength, uiBits ); |
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186 | |
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187 | uiBits += (1 << uiLength); |
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188 | riVal = ( uiBits & 1) ? -(Int)(uiBits>>1) : (Int)(uiBits>>1); |
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189 | } |
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190 | else |
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191 | { |
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192 | riVal = 0; |
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193 | } |
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194 | } |
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195 | |
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196 | Void SyntaxElementParser::xReadFlag (UInt& ruiCode) |
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197 | { |
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198 | m_pcBitstream->read( 1, ruiCode ); |
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199 | } |
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200 | |
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201 | |
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202 | //! \} |
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203 | |
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