| 1 | /* The copyright in this software is being made available under the BSD |
|---|
| 2 | * License, included below. This software may be subject to other third party |
|---|
| 3 | * and contributor rights, including patent rights, and no such rights are |
|---|
| 4 | * granted under this license. |
|---|
| 5 | * |
|---|
| 6 | * Copyright (c) 2010-2013, ITU/ISO/IEC |
|---|
| 7 | * All rights reserved. |
|---|
| 8 | * |
|---|
| 9 | * Redistribution and use in source and binary forms, with or without |
|---|
| 10 | * modification, are permitted provided that the following conditions are met: |
|---|
| 11 | * |
|---|
| 12 | * * Redistributions of source code must retain the above copyright notice, |
|---|
| 13 | * this list of conditions and the following disclaimer. |
|---|
| 14 | * * Redistributions in binary form must reproduce the above copyright notice, |
|---|
| 15 | * this list of conditions and the following disclaimer in the documentation |
|---|
| 16 | * and/or other materials provided with the distribution. |
|---|
| 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
|---|
| 18 | * be used to endorse or promote products derived from this software without |
|---|
| 19 | * specific prior written permission. |
|---|
| 20 | * |
|---|
| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
|---|
| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|---|
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|---|
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
|---|
| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
|---|
| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
|---|
| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
|---|
| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
|---|
| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
|---|
| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
|---|
| 31 | * THE POSSIBILITY OF SUCH DAMAGE. |
|---|
| 32 | */ |
|---|
| 33 | |
|---|
| 34 | /** \file TDecBinCoderCABAC.h |
|---|
| 35 | \brief binary entropy decoder of CABAC |
|---|
| 36 | */ |
|---|
| 37 | |
|---|
| 38 | #ifndef __TDEC_BIN_CODER_CABAC__ |
|---|
| 39 | #define __TDEC_BIN_CODER_CABAC__ |
|---|
| 40 | |
|---|
| 41 | #include "TLibCommon/TComCABACTables.h" |
|---|
| 42 | #include "TDecBinCoder.h" |
|---|
| 43 | |
|---|
| 44 | //! \ingroup TLibDecoder |
|---|
| 45 | //! \{ |
|---|
| 46 | |
|---|
| 47 | class TDecBinCABAC : public TDecBinIf |
|---|
| 48 | { |
|---|
| 49 | public: |
|---|
| 50 | TDecBinCABAC (); |
|---|
| 51 | virtual ~TDecBinCABAC(); |
|---|
| 52 | |
|---|
| 53 | Void init ( TComInputBitstream* pcTComBitstream ); |
|---|
| 54 | Void uninit (); |
|---|
| 55 | |
|---|
| 56 | Void start (); |
|---|
| 57 | Void finish (); |
|---|
| 58 | |
|---|
| 59 | Void decodeBin ( UInt& ruiBin, ContextModel& rcCtxModel ); |
|---|
| 60 | Void decodeBinEP ( UInt& ruiBin ); |
|---|
| 61 | Void decodeBinsEP ( UInt& ruiBin, Int numBins ); |
|---|
| 62 | Void decodeBinTrm ( UInt& ruiBin ); |
|---|
| 63 | |
|---|
| 64 | Void xReadPCMCode ( UInt uiLength, UInt& ruiCode ); |
|---|
| 65 | |
|---|
| 66 | Void copyState ( TDecBinIf* pcTDecBinIf ); |
|---|
| 67 | TDecBinCABAC* getTDecBinCABAC() { return this; } |
|---|
| 68 | |
|---|
| 69 | private: |
|---|
| 70 | TComInputBitstream* m_pcTComBitstream; |
|---|
| 71 | UInt m_uiRange; |
|---|
| 72 | UInt m_uiValue; |
|---|
| 73 | Int m_bitsNeeded; |
|---|
| 74 | }; |
|---|
| 75 | |
|---|
| 76 | //! \} |
|---|
| 77 | |
|---|
| 78 | #endif |
|---|
| 79 | |
|---|
