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 TDecBinCoderCABAC.h |
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35 | \brief binary entropy decoder of CABAC |
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36 | */ |
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37 | |
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38 | #ifndef __TDEC_BIN_CODER_CABAC__ |
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39 | #define __TDEC_BIN_CODER_CABAC__ |
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40 | |
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41 | #include "TLibCommon/TComCABACTables.h" |
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42 | #include "TDecBinCoder.h" |
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43 | |
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44 | //! \ingroup TLibDecoder |
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45 | //! \{ |
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46 | |
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47 | class TDecBinCABAC : public TDecBinIf |
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48 | { |
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49 | public: |
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50 | TDecBinCABAC (); |
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51 | virtual ~TDecBinCABAC(); |
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52 | |
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53 | Void init ( TComInputBitstream* pcTComBitstream ); |
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54 | Void uninit (); |
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55 | |
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56 | Void start (); |
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57 | Void finish (); |
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58 | |
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59 | Void decodeBin ( UInt& ruiBin, ContextModel& rcCtxModel ); |
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60 | Void decodeBinEP ( UInt& ruiBin ); |
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61 | Void decodeBinsEP ( UInt& ruiBin, Int numBins ); |
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62 | Void decodeBinTrm ( UInt& ruiBin ); |
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63 | |
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64 | Void xReadPCMCode ( UInt uiLength, UInt& ruiCode ); |
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65 | |
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66 | Void copyState ( TDecBinIf* pcTDecBinIf ); |
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67 | TDecBinCABAC* getTDecBinCABAC() { return this; } |
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68 | |
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69 | private: |
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70 | TComInputBitstream* m_pcTComBitstream; |
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71 | UInt m_uiRange; |
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72 | UInt m_uiValue; |
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73 | Int m_bitsNeeded; |
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74 | }; |
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75 | |
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76 | //! \} |
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77 | |
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78 | #endif |
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79 | |
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