[608] | 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) 2010-2013, 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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[622] | 52 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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[608] | 53 | { |
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| 54 | return; |
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| 55 | } |
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| 56 | #endif |
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| 57 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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| 58 | if (length < 10) |
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| 59 | { |
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[655] | 60 | fprintf( g_hTrace, "%-50s u(%d) : %u\n", pSymbolName, length, rValue ); |
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[608] | 61 | } |
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| 62 | else |
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| 63 | { |
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[655] | 64 | fprintf( g_hTrace, "%-50s u(%d) : %u\n", pSymbolName, length, rValue ); |
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[608] | 65 | } |
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| 66 | fflush ( g_hTrace ); |
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| 67 | } |
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| 68 | |
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| 69 | Void SyntaxElementParser::xReadUvlcTr (UInt& rValue, const Char *pSymbolName) |
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| 70 | { |
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| 71 | xReadUvlc (rValue); |
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| 72 | #if H_MV_ENC_DEC_TRAC |
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[622] | 73 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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[608] | 74 | { |
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| 75 | return; |
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| 76 | } |
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| 77 | #endif |
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| 78 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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[655] | 79 | fprintf( g_hTrace, "%-50s ue(v) : %u\n", pSymbolName, rValue ); |
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[608] | 80 | fflush ( g_hTrace ); |
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| 81 | } |
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| 82 | |
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| 83 | Void SyntaxElementParser::xReadSvlcTr (Int& rValue, const Char *pSymbolName) |
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| 84 | { |
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| 85 | xReadSvlc(rValue); |
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| 86 | #if H_MV_ENC_DEC_TRAC |
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[622] | 87 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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[608] | 88 | { |
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| 89 | return; |
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| 90 | } |
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| 91 | #endif |
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| 92 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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| 93 | fprintf( g_hTrace, "%-50s se(v) : %d\n", pSymbolName, rValue ); |
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| 94 | fflush ( g_hTrace ); |
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| 95 | } |
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| 96 | |
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| 97 | Void SyntaxElementParser::xReadFlagTr (UInt& rValue, const Char *pSymbolName) |
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| 98 | { |
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| 99 | xReadFlag(rValue); |
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| 100 | #if H_MV_ENC_DEC_TRAC |
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[622] | 101 | if ( g_disableHLSTrace || !g_HLSTraceEnable ) |
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[608] | 102 | { |
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| 103 | return; |
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| 104 | } |
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| 105 | #endif |
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| 106 | fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ ); |
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| 107 | fprintf( g_hTrace, "%-50s u(1) : %d\n", pSymbolName, rValue ); |
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| 108 | fflush ( g_hTrace ); |
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| 109 | } |
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| 110 | |
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| 111 | #endif |
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| 112 | |
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| 113 | |
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| 114 | // ==================================================================================================================== |
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| 115 | // Protected member functions |
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| 116 | // ==================================================================================================================== |
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| 117 | |
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| 118 | Void SyntaxElementParser::xReadCode (UInt uiLength, UInt& ruiCode) |
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| 119 | { |
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| 120 | assert ( uiLength > 0 ); |
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| 121 | m_pcBitstream->read (uiLength, ruiCode); |
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| 122 | } |
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| 123 | |
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| 124 | Void SyntaxElementParser::xReadUvlc( UInt& ruiVal) |
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| 125 | { |
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| 126 | UInt uiVal = 0; |
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| 127 | UInt uiCode = 0; |
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| 128 | UInt uiLength; |
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| 129 | m_pcBitstream->read( 1, uiCode ); |
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| 130 | |
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| 131 | if( 0 == uiCode ) |
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| 132 | { |
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| 133 | uiLength = 0; |
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| 134 | |
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| 135 | while( ! ( uiCode & 1 )) |
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| 136 | { |
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| 137 | m_pcBitstream->read( 1, uiCode ); |
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| 138 | uiLength++; |
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| 139 | } |
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| 140 | |
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| 141 | m_pcBitstream->read( uiLength, uiVal ); |
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| 142 | |
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| 143 | uiVal += (1 << uiLength)-1; |
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| 144 | } |
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| 145 | |
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| 146 | ruiVal = uiVal; |
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| 147 | } |
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| 148 | |
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| 149 | Void SyntaxElementParser::xReadSvlc( Int& riVal) |
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| 150 | { |
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| 151 | UInt uiBits = 0; |
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| 152 | m_pcBitstream->read( 1, uiBits ); |
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| 153 | if( 0 == uiBits ) |
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| 154 | { |
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| 155 | UInt uiLength = 0; |
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| 156 | |
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| 157 | while( ! ( uiBits & 1 )) |
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| 158 | { |
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| 159 | m_pcBitstream->read( 1, uiBits ); |
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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, uiBits ); |
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| 164 | |
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| 165 | uiBits += (1 << uiLength); |
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| 166 | riVal = ( uiBits & 1) ? -(Int)(uiBits>>1) : (Int)(uiBits>>1); |
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| 167 | } |
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| 168 | else |
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| 169 | { |
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| 170 | riVal = 0; |
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| 171 | } |
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| 172 | } |
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| 173 | |
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| 174 | Void SyntaxElementParser::xReadFlag (UInt& ruiCode) |
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| 175 | { |
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| 176 | m_pcBitstream->read( 1, ruiCode ); |
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| 177 | } |
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| 178 | |
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| 179 | |
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| 180 | //! \} |
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| 181 | |
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