source: 3DVCSoftware/trunk/source/Lib/TLibEncoder/TEncBinCoderCABAC.h @ 872

Last change on this file since 872 was 872, checked in by tech, 10 years ago

Merged HTM-10.0-dev0@871. (MV-HEVC 7 HLS)

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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) 2010-2014, 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.
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18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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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     TEncBinCoderCABAC.h
35    \brief    binary entropy encoder of CABAC
36*/
37
38#ifndef __TENC_BIN_CODER_CABAC__
39#define __TENC_BIN_CODER_CABAC__
40
41#include "TLibCommon/TComCABACTables.h"
42#include "TEncBinCoder.h"
43
44//! \ingroup TLibEncoder
45//! \{
46
47class TEncBinCABAC : public TEncBinIf
48{
49public:
50  TEncBinCABAC ();
51  virtual ~TEncBinCABAC();
52 
53  Void  init              ( TComBitIf* pcTComBitIf );
54  Void  uninit            ();
55 
56  Void  start             ();
57  Void  finish            ();
58  Void  copyState         ( TEncBinIf* pcTEncBinIf );
59  Void  flush            ();
60
61  Void  resetBac          ();
62  Void  encodePCMAlignBits();
63  Void  xWritePCMCode     ( UInt uiCode, UInt uiLength );
64 
65  Void  resetBits         ();
66  UInt  getNumWrittenBits ();
67 
68  Void  encodeBin         ( UInt  binValue,  ContextModel& rcCtxModel );
69  Void  encodeBinEP       ( UInt  binValue                            );
70  Void  encodeBinsEP      ( UInt  binValues, Int numBins              );
71  Void  encodeBinTrm      ( UInt  binValue                            );
72 
73  TEncBinCABAC* getTEncBinCABAC()  { return this; }
74 
75  Void  setBinsCoded              ( UInt uiVal )  { m_uiBinsCoded = uiVal;               }
76  UInt  getBinsCoded              ()              { return m_uiBinsCoded;                }
77  Void  setBinCountingEnableFlag  ( Bool bFlag )  { m_binCountIncrement = bFlag ? 1 : 0; }
78  Bool  getBinCountingEnableFlag  ()              { return m_binCountIncrement != 0;     }
79 
80#if FAST_BIT_EST
81protected:
82#else
83private:
84#endif
85  Void testAndWriteOut();
86  Void writeOut();
87 
88  TComBitIf*          m_pcTComBitIf;
89  UInt                m_uiLow;
90  UInt                m_uiRange;
91  UInt                m_bufferedByte;
92  Int                 m_numBufferedBytes;
93  Int                 m_bitsLeft;
94  UInt                m_uiBinsCoded;
95  Int                 m_binCountIncrement;
96#if FAST_BIT_EST
97  UInt64 m_fracBits;
98#endif
99};
100
101//! \}
102
103#endif
104
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