source: 3DVCSoftware/branches/HTM-6.2-dev1-Samsung/Lib/TLibDecoder/TDecBinCoderCABAC.h @ 347

Last change on this file since 347 was 347, checked in by samsung-htm, 11 years ago

D0122 Integration

File size: 3.3 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.
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
47class TDecBinCABAC : public TDecBinIf
48{
49public:
50  TDecBinCABAC ();
51  virtual ~TDecBinCABAC();
52 
53  Void  init              ( TComInputBitstream* pcTComBitstream );
54  Void  uninit            ();
55 
56  Void  start             ();
57  Void  finish            ();
58  Void  flush             ();
59 
60  Void  decodeBin         ( UInt& ruiBin, ContextModel& rcCtxModel );
61  Void  decodeBinEP       ( UInt& ruiBin                           );
62  Void  decodeBinsEP      ( UInt& ruiBin, Int numBins              );
63  Void  decodeBinTrm      ( UInt& ruiBin                           );
64 
65  Void  resetBac          ();
66  Void  decodeNumSubseqIPCM( Int& numSubseqIPCM ) ;
67  Void  decodePCMAlignBits();
68  Void  xReadPCMCode      ( UInt uiLength, UInt& ruiCode );
69 
70  Void  copyState         ( TDecBinIf* pcTDecBinIf );
71  TDecBinCABAC* getTDecBinCABAC()  { return this; }
72#if !OL_FLUSH_ALIGN
73  Int   getBitsReadAhead() { return -m_bitsNeeded; }
74#endif
75
76private:
77  TComInputBitstream* m_pcTComBitstream;
78  UInt                m_uiRange;
79  UInt                m_uiValue;
80#if !OL_FLUSH_ALIGN
81  UInt                m_uiLastByte;
82#endif
83  Int                 m_bitsNeeded;
84};
85
86//! \}
87
88#endif
89
Note: See TracBrowser for help on using the repository browser.