source: 3DVCSoftware/trunk/source/Lib/TLibEncoder/TEncBinCoderCABAC.h @ 81

Last change on this file since 81 was 56, checked in by hschwarz, 12 years ago

updated trunk (move to HM6.1)

  • Property svn:eol-style set to native
File size: 3.8 KB
Line 
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) 2010-2012, 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.
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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
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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#if OL_FLUSH
60  Void  flush            ();
61#endif
62
63  Void  resetBac          ();
64#if BURST_IPCM
65  Void  encodeNumSubseqIPCM( Int numSubseqIPCM );
66#endif
67  Void  encodePCMAlignBits();
68  Void  xWritePCMCode     ( UInt uiCode, UInt uiLength );
69 
70  Void encodeFlush(Bool bEnd);  //!< flush bits when CABAC termination
71
72  Void  resetBits         ();
73  UInt  getNumWrittenBits ();
74 
75  Void  encodeBin         ( UInt  binValue,  ContextModel& rcCtxModel );
76  Void  encodeBinEP       ( UInt  binValue                            );
77  Void  encodeBinsEP      ( UInt  binValues, Int numBins              );
78  Void  encodeBinTrm      ( UInt  binValue                            );
79 
80  TEncBinCABAC* getTEncBinCABAC()  { return this; }
81 
82  Void  setBinsCoded              ( UInt uiVal )  { m_uiBinsCoded = uiVal;               }
83  UInt  getBinsCoded              ()              { return m_uiBinsCoded;                }
84  Void  setBinCountingEnableFlag  ( Bool bFlag )  { m_binCountIncrement = bFlag ? 1 : 0; }
85  Bool  getBinCountingEnableFlag  ()              { return m_binCountIncrement != 0;     }
86 
87#if FAST_BIT_EST
88protected:
89#else
90private:
91#endif
92  Void testAndWriteOut();
93  Void writeOut();
94 
95  TComBitIf*          m_pcTComBitIf;
96  UInt                m_uiLow;
97  UInt                m_uiRange;
98  UInt                m_bufferedByte;
99  Int                 m_numBufferedBytes;
100  Int                 m_bitsLeft;
101  UInt                m_uiBinsCoded;
102  Int                 m_binCountIncrement;
103#if FAST_BIT_EST
104  UInt64 m_fracBits;
105#endif
106};
107
108//! \}
109
110#endif
111
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