[56] | 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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[1313] | 4 | * granted under this license. |
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[56] | 5 | * |
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[1313] | 6 | * Copyright (c) 2010-2015, ITU/ISO/IEC |
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[56] | 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 TEncBinCoderCABAC.cpp |
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| 35 | \brief binary entropy encoder of CABAC |
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| 36 | */ |
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| 37 | |
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| 38 | #include "TEncBinCoderCABACCounter.h" |
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| 39 | #include "TLibCommon/TComRom.h" |
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[1313] | 40 | #include "TLibCommon/Debug.h" |
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[56] | 41 | |
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[1313] | 42 | |
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[56] | 43 | #if FAST_BIT_EST |
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| 44 | |
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| 45 | //! \ingroup TLibEncoder |
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| 46 | //! \{ |
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| 47 | |
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| 48 | |
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| 49 | TEncBinCABACCounter::TEncBinCABACCounter() |
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| 50 | { |
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| 51 | } |
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| 52 | |
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| 53 | TEncBinCABACCounter::~TEncBinCABACCounter() |
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| 54 | { |
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| 55 | } |
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| 56 | |
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| 57 | Void TEncBinCABACCounter::finish() |
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| 58 | { |
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| 59 | m_pcTComBitIf->write(0, UInt(m_fracBits >> 15) ); |
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| 60 | m_fracBits &= 32767; |
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[1321] | 61 | #if NH_MV |
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[1313] | 62 | D_PRINT_INDENT( g_traceEncFracBits, "Finish " + n2s(m_fracBits) ); |
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[1321] | 63 | #endif |
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[56] | 64 | } |
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| 65 | |
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| 66 | UInt TEncBinCABACCounter::getNumWrittenBits() |
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| 67 | { |
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| 68 | return m_pcTComBitIf->getNumberOfWrittenBits() + UInt( m_fracBits >> 15 ); |
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| 69 | } |
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| 70 | |
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| 71 | /** |
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| 72 | * \brief Encode bin |
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| 73 | * |
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| 74 | * \param binValue bin value |
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| 75 | * \param rcCtxModel context model |
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| 76 | */ |
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| 77 | Void TEncBinCABACCounter::encodeBin( UInt binValue, ContextModel &rcCtxModel ) |
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| 78 | { |
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[1313] | 79 | #if DEBUG_ENCODER_SEARCH_BINS |
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| 80 | const UInt64 startingFracBits = m_fracBits; |
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| 81 | #endif |
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| 82 | |
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[56] | 83 | m_uiBinsCoded += m_binCountIncrement; |
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| 84 | m_fracBits += rcCtxModel.getEntropyBits( binValue ); |
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[1321] | 85 | #if NH_MV |
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[1313] | 86 | D_PRINT_INDENT( g_traceEncFracBits, "EncodeBin " + n2s(m_fracBits) ); |
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[1321] | 87 | #endif |
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[1313] | 88 | |
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[56] | 89 | rcCtxModel.update( binValue ); |
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[1313] | 90 | |
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| 91 | #if DEBUG_ENCODER_SEARCH_BINS |
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| 92 | if ((g_debugCounter + debugEncoderSearchBinWindow) >= debugEncoderSearchBinTargetLine) |
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| 93 | { |
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| 94 | std::cout << g_debugCounter << ": coding bin value " << binValue << ", fracBits = [" << startingFracBits << "->" << m_fracBits << "]\n"; |
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| 95 | } |
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| 96 | |
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| 97 | if (g_debugCounter >= debugEncoderSearchBinTargetLine) |
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| 98 | { |
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| 99 | Char breakPointThis; |
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| 100 | breakPointThis = 7; |
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| 101 | } |
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| 102 | if (g_debugCounter >= (debugEncoderSearchBinTargetLine + debugEncoderSearchBinWindow)) |
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| 103 | { |
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| 104 | exit(0); |
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| 105 | } |
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| 106 | g_debugCounter++; |
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| 107 | #endif |
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[56] | 108 | } |
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| 109 | |
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| 110 | /** |
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| 111 | * \brief Encode equiprobable bin |
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| 112 | * |
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| 113 | * \param binValue bin value |
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| 114 | */ |
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[1313] | 115 | Void TEncBinCABACCounter::encodeBinEP( UInt /*binValue*/ ) |
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[56] | 116 | { |
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| 117 | m_uiBinsCoded += m_binCountIncrement; |
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| 118 | m_fracBits += 32768; |
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[1321] | 119 | #if NH_MV |
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| 120 | D_PRINT_INDENT( g_traceEncFracBits , "EncodeBinEP " + n2s(m_fracBits) ); |
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| 121 | #endif |
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[56] | 122 | } |
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| 123 | |
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| 124 | /** |
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| 125 | * \brief Encode equiprobable bins |
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| 126 | * |
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| 127 | * \param binValues bin values |
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| 128 | * \param numBins number of bins |
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| 129 | */ |
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[1313] | 130 | Void TEncBinCABACCounter::encodeBinsEP( UInt /*binValues*/, Int numBins ) |
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[56] | 131 | { |
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| 132 | m_uiBinsCoded += numBins & -m_binCountIncrement; |
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| 133 | m_fracBits += 32768 * numBins; |
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[1321] | 134 | #if NH_MV |
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[1313] | 135 | D_PRINT_INDENT( g_traceEncFracBits , "EncodeBinsEP " + n2s(m_fracBits) ); |
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[1321] | 136 | #endif |
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[56] | 137 | } |
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| 138 | |
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| 139 | /** |
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| 140 | * \brief Encode terminating bin |
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| 141 | * |
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| 142 | * \param binValue bin value |
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| 143 | */ |
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| 144 | Void TEncBinCABACCounter::encodeBinTrm( UInt binValue ) |
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| 145 | { |
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| 146 | m_uiBinsCoded += m_binCountIncrement; |
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| 147 | m_fracBits += ContextModel::getEntropyBitsTrm( binValue ); |
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[1321] | 148 | #if NH_MV |
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[1313] | 149 | D_PRINT_INDENT( g_traceEncFracBits , "EncodeBinTrm " + n2s(m_fracBits) ); |
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[1321] | 150 | #endif |
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[56] | 151 | } |
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| 152 | |
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[1313] | 153 | Void TEncBinCABACCounter::align() |
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| 154 | { |
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| 155 | m_fracBits = (m_fracBits + 32767) & (~32767); |
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[1321] | 156 | #if NH_MV |
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[1313] | 157 | D_PRINT_INDENT( g_traceEncFracBits, "Align " + n2s(m_fracBits) ); |
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[1321] | 158 | #endif |
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[1313] | 159 | } |
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| 160 | |
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[56] | 161 | //! \} |
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| 162 | #endif |
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| 163 | |
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