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source: SHVCSoftware/branches/SHM-1.0-dev/source/Lib/TLibEncoder/TEncSbac.cpp @ 1263

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Last change on this file since 1263 was 2, checked in by seregin, 12 years ago
Initial import by Vadim Seregin <vseregin@…>
File size: 66.6 KB

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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) 2010-2012, 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 TEncSbac.cpp
35	\brief SBAC encoder class
36	*/
37
38	#include "TEncTop.h"
39	#include "TEncSbac.h"
40
41	#include <map>
42	#include <algorithm>
43
44	//! \ingroup TLibEncoder
45	//! \{
46
47	// ====================================================================================================================
48	// Constructor / destructor / create / destroy
49	// ====================================================================================================================
50
51	TEncSbac::TEncSbac()
52	// new structure here
53	: m_pcBitIf ( NULL )
54	, m_pcSlice ( NULL )
55	, m_pcBinIf ( NULL )
56	, m_uiCoeffCost ( 0 )
57	, m_numContextModels ( 0 )
58	, m_cCUSplitFlagSCModel ( 1, 1, NUM_SPLIT_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels )
59	, m_cCUSkipFlagSCModel ( 1, 1, NUM_SKIP_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
60	, m_cCUMergeFlagExtSCModel ( 1, 1, NUM_MERGE_FLAG_EXT_CTX , m_contextModels + m_numContextModels, m_numContextModels)
61	, m_cCUMergeIdxExtSCModel ( 1, 1, NUM_MERGE_IDX_EXT_CTX , m_contextModels + m_numContextModels, m_numContextModels)
62	, m_cCUPartSizeSCModel ( 1, 1, NUM_PART_SIZE_CTX , m_contextModels + m_numContextModels, m_numContextModels)
63	, m_cCUPredModeSCModel ( 1, 1, NUM_PRED_MODE_CTX , m_contextModels + m_numContextModels, m_numContextModels)
64	, m_cCUAlfCtrlFlagSCModel ( 1, 1, NUM_ALF_CTRL_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
65	, m_cCUIntraPredSCModel ( 1, 1, NUM_ADI_CTX , m_contextModels + m_numContextModels, m_numContextModels)
66	, m_cCUChromaPredSCModel ( 1, 1, NUM_CHROMA_PRED_CTX , m_contextModels + m_numContextModels, m_numContextModels)
67	, m_cCUDeltaQpSCModel ( 1, 1, NUM_DELTA_QP_CTX , m_contextModels + m_numContextModels, m_numContextModels)
68	, m_cCUInterDirSCModel ( 1, 1, NUM_INTER_DIR_CTX , m_contextModels + m_numContextModels, m_numContextModels)
69	, m_cCURefPicSCModel ( 1, 1, NUM_REF_NO_CTX , m_contextModels + m_numContextModels, m_numContextModels)
70	, m_cCUMvdSCModel ( 1, 1, NUM_MV_RES_CTX , m_contextModels + m_numContextModels, m_numContextModels)
71	, m_cCUQtCbfSCModel ( 1, 2, NUM_QT_CBF_CTX , m_contextModels + m_numContextModels, m_numContextModels)
72	, m_cCUTransSubdivFlagSCModel ( 1, 1, NUM_TRANS_SUBDIV_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
73	, m_cCUQtRootCbfSCModel ( 1, 1, NUM_QT_ROOT_CBF_CTX , m_contextModels + m_numContextModels, m_numContextModels)
74	, m_cCUSigCoeffGroupSCModel ( 1, 2, NUM_SIG_CG_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
75	, m_cCUSigSCModel ( 1, 1, NUM_SIG_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
76	, m_cCuCtxLastX ( 1, 2, NUM_CTX_LAST_FLAG_XY , m_contextModels + m_numContextModels, m_numContextModels)
77	, m_cCuCtxLastY ( 1, 2, NUM_CTX_LAST_FLAG_XY , m_contextModels + m_numContextModels, m_numContextModels)
78	, m_cCUOneSCModel ( 1, 1, NUM_ONE_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
79	, m_cCUAbsSCModel ( 1, 1, NUM_ABS_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
80	, m_cMVPIdxSCModel ( 1, 1, NUM_MVP_IDX_CTX , m_contextModels + m_numContextModels, m_numContextModels)
81	, m_cALFFlagSCModel ( 1, 1, NUM_ALF_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
82	, m_cALFUvlcSCModel ( 1, 1, NUM_ALF_UVLC_CTX , m_contextModels + m_numContextModels, m_numContextModels)
83	, m_cALFSvlcSCModel ( 1, 1, NUM_ALF_SVLC_CTX , m_contextModels + m_numContextModels, m_numContextModels)
84	, m_cCUAMPSCModel ( 1, 1, NUM_CU_AMP_CTX , m_contextModels + m_numContextModels, m_numContextModels)
85	#if !SAO_ABS_BY_PASS
86	, m_cSaoUvlcSCModel ( 1, 1, NUM_SAO_UVLC_CTX , m_contextModels + m_numContextModels, m_numContextModels)
87	#endif
88	#if SAO_MERGE_ONE_CTX
89	, m_cSaoMergeSCModel ( 1, 1, NUM_SAO_MERGE_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
90	#else
91	, m_cSaoMergeLeftSCModel ( 1, 1, NUM_SAO_MERGE_LEFT_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
92	, m_cSaoMergeUpSCModel ( 1, 1, NUM_SAO_MERGE_UP_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
93	#endif
94	#if INTRA_BL
95	, m_cIntraBLPredFlagSCModel (1, 1, NUM_INTRA_BL_PRED_CTX , m_contextModels + m_numContextModels, m_numContextModels)
96	#endif
97	, m_cSaoTypeIdxSCModel ( 1, 1, NUM_SAO_TYPE_IDX_CTX , m_contextModels + m_numContextModels, m_numContextModels)
98	, m_cTransformSkipSCModel ( 1, 2, NUM_TRANSFORMSKIP_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels)
99	, m_CUTransquantBypassFlagSCModel( 1, 1, NUM_CU_TRANSQUANT_BYPASS_FLAG_CTX, m_contextModels + m_numContextModels, m_numContextModels)
100	{
101	assert( m_numContextModels <= MAX_NUM_CTX_MOD );
102	#if !REMOVE_FGS
103	m_iSliceGranularity = 0;
104	#endif
105	}
106
107	TEncSbac::~TEncSbac()
108	{
109	}
110
111	// ====================================================================================================================
112	// Public member functions
113	// ====================================================================================================================
114
115	Void TEncSbac::resetEntropy ()
116	{
117	Int iQp = m_pcSlice->getSliceQp();
118	SliceType eSliceType = m_pcSlice->getSliceType();
119
120	Int encCABACTableIdx = m_pcSlice->getPPS()->getEncCABACTableIdx();
121	if (!m_pcSlice->isIntra() && (encCABACTableIdx==B_SLICE \|\| encCABACTableIdx==P_SLICE) && m_pcSlice->getPPS()->getCabacInitPresentFlag())
122	{
123	eSliceType = (SliceType) encCABACTableIdx;
124	}
125
126	m_cCUSplitFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SPLIT_FLAG );
127
128	m_cCUSkipFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SKIP_FLAG );
129	m_cCUAlfCtrlFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_CTRL_FLAG );
130	m_cCUMergeFlagExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_FLAG_EXT);
131	m_cCUMergeIdxExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_IDX_EXT);
132	m_cCUPartSizeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PART_SIZE );
133	m_cCUAMPSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_CU_AMP_POS );
134	m_cCUPredModeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PRED_MODE );
135	m_cCUIntraPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTRA_PRED_MODE );
136	m_cCUChromaPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_CHROMA_PRED_MODE );
137	m_cCUInterDirSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTER_DIR );
138	m_cCUMvdSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVD );
139	m_cCURefPicSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_REF_PIC );
140	m_cCUDeltaQpSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DQP );
141	m_cCUQtCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_CBF );
142	m_cCUQtRootCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_ROOT_CBF );
143	m_cCUSigCoeffGroupSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_CG_FLAG );
144	m_cCUSigSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_FLAG );
145	m_cCuCtxLastX.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST );
146	m_cCuCtxLastY.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST );
147	m_cCUOneSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ONE_FLAG );
148	m_cCUAbsSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ABS_FLAG );
149	m_cMVPIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVP_IDX );
150	m_cALFFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_FLAG );
151	m_cALFUvlcSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_UVLC );
152	m_cALFSvlcSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_SVLC );
153	m_cCUTransSubdivFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANS_SUBDIV_FLAG );
154	#if !SAO_ABS_BY_PASS
155	m_cSaoUvlcSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_UVLC );
156	#endif
157	#if SAO_MERGE_ONE_CTX
158	m_cSaoMergeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_FLAG );
159	#else
160	m_cSaoMergeLeftSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_LEFT_FLAG );
161	m_cSaoMergeUpSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_UP_FLAG );
162	#endif
163	#if INTRA_BL
164	m_cIntraBLPredFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTRA_BL_PRED_FLAG );
165	#endif
166	m_cSaoTypeIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_TYPE_IDX );
167	m_cTransformSkipSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANSFORMSKIP_FLAG );
168	m_CUTransquantBypassFlagSCModel.initBuffer( eSliceType, iQp, (UChar*)INIT_CU_TRANSQUANT_BYPASS_FLAG );
169	// new structure
170	m_uiLastQp = iQp;
171
172	m_pcBinIf->start();
173
174	return;
175	}
176
177	/** The function does the following:
178	* If current slice type is P/B then it determines the distance of initialisation type 1 and 2 from the current CABAC states and
179	* stores the index of the closest table. This index is used for the next P/B slice when cabac_init_present_flag is true.
180	*/
181	Void TEncSbac::determineCabacInitIdx()
182	{
183	Int qp = m_pcSlice->getSliceQp();
184
185	if (!m_pcSlice->isIntra())
186	{
187	SliceType aSliceTypeChoices[] = {B_SLICE, P_SLICE};
188
189	UInt bestCost = MAX_UINT;
190	SliceType bestSliceType = aSliceTypeChoices[0];
191	for (UInt idx=0; idx<2; idx++)
192	{
193	UInt curCost = 0;
194	SliceType curSliceType = aSliceTypeChoices[idx];
195
196	curCost = m_cCUSplitFlagSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SPLIT_FLAG );
197	curCost += m_cCUSkipFlagSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SKIP_FLAG );
198	#if INTRA_BL
199	curCost += m_cIntraBLPredFlagSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_INTRA_BL_PRED_FLAG );
200	#endif
201	curCost += m_cCUAlfCtrlFlagSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_ALF_CTRL_FLAG );
202	curCost += m_cCUMergeFlagExtSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_MERGE_FLAG_EXT);
203	curCost += m_cCUMergeIdxExtSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_MERGE_IDX_EXT);
204	curCost += m_cCUPartSizeSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_PART_SIZE );
205	curCost += m_cCUAMPSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_CU_AMP_POS );
206	curCost += m_cCUPredModeSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_PRED_MODE );
207	curCost += m_cCUIntraPredSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_INTRA_PRED_MODE );
208	curCost += m_cCUChromaPredSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_CHROMA_PRED_MODE );
209	curCost += m_cCUInterDirSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_INTER_DIR );
210	curCost += m_cCUMvdSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_MVD );
211	curCost += m_cCURefPicSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_REF_PIC );
212	curCost += m_cCUDeltaQpSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_DQP );
213	curCost += m_cCUQtCbfSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_QT_CBF );
214	curCost += m_cCUQtRootCbfSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_QT_ROOT_CBF );
215	curCost += m_cCUSigCoeffGroupSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SIG_CG_FLAG );
216	curCost += m_cCUSigSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SIG_FLAG );
217	curCost += m_cCuCtxLastX.calcCost ( curSliceType, qp, (UChar*)INIT_LAST );
218	curCost += m_cCuCtxLastY.calcCost ( curSliceType, qp, (UChar*)INIT_LAST );
219	curCost += m_cCUOneSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_ONE_FLAG );
220	curCost += m_cCUAbsSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_ABS_FLAG );
221	curCost += m_cMVPIdxSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_MVP_IDX );
222	curCost += m_cALFFlagSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_ALF_FLAG );
223	curCost += m_cALFUvlcSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_ALF_UVLC );
224	curCost += m_cALFSvlcSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_ALF_SVLC );
225	curCost += m_cCUTransSubdivFlagSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_TRANS_SUBDIV_FLAG );
226	#if !SAO_ABS_BY_PASS
227	curCost += m_cSaoUvlcSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SAO_UVLC );
228	#endif
229	#if SAO_MERGE_ONE_CTX
230	curCost += m_cSaoMergeSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SAO_MERGE_FLAG );
231	#else
232	curCost += m_cSaoMergeLeftSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SAO_MERGE_LEFT_FLAG );
233	curCost += m_cSaoMergeUpSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SAO_MERGE_UP_FLAG );
234	#endif
235	curCost += m_cSaoTypeIdxSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_SAO_TYPE_IDX );
236	curCost += m_cTransformSkipSCModel.calcCost ( curSliceType, qp, (UChar*)INIT_TRANSFORMSKIP_FLAG );
237	curCost += m_CUTransquantBypassFlagSCModel.calcCost( curSliceType, qp, (UChar*)INIT_CU_TRANSQUANT_BYPASS_FLAG );
238	if (curCost < bestCost)
239	{
240	bestSliceType = curSliceType;
241	bestCost = curCost;
242	}
243	}
244	m_pcSlice->getPPS()->setEncCABACTableIdx( bestSliceType );
245	}
246	else
247	{
248	m_pcSlice->getPPS()->setEncCABACTableIdx( I_SLICE );
249	}
250	}
251
252
253	/** The function does the followng: Write out terminate bit. Flush CABAC. Intialize CABAC states. Start CABAC.
254	*/
255	Void TEncSbac::updateContextTables( SliceType eSliceType, Int iQp, Bool bExecuteFinish )
256	{
257	m_pcBinIf->encodeBinTrm(1);
258	if (bExecuteFinish) m_pcBinIf->finish();
259	m_cCUSplitFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SPLIT_FLAG );
260
261	m_cCUSkipFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SKIP_FLAG );
262	m_cCUAlfCtrlFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_CTRL_FLAG );
263	m_cCUMergeFlagExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_FLAG_EXT);
264	m_cCUMergeIdxExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_IDX_EXT);
265	m_cCUPartSizeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PART_SIZE );
266	m_cCUAMPSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_CU_AMP_POS );
267	m_cCUPredModeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PRED_MODE );
268	m_cCUIntraPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTRA_PRED_MODE );
269	m_cCUChromaPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_CHROMA_PRED_MODE );
270	m_cCUInterDirSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTER_DIR );
271	m_cCUMvdSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVD );
272	m_cCURefPicSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_REF_PIC );
273	m_cCUDeltaQpSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DQP );
274	m_cCUQtCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_CBF );
275	m_cCUQtRootCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_ROOT_CBF );
276	m_cCUSigCoeffGroupSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_CG_FLAG );
277	m_cCUSigSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_FLAG );
278	m_cCuCtxLastX.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST );
279	m_cCuCtxLastY.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST );
280	m_cCUOneSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ONE_FLAG );
281	m_cCUAbsSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ABS_FLAG );
282	m_cMVPIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVP_IDX );
283	m_cALFFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_FLAG );
284	m_cALFUvlcSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_UVLC );
285	m_cALFSvlcSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ALF_SVLC );
286	m_cCUTransSubdivFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANS_SUBDIV_FLAG );
287	#if !SAO_ABS_BY_PASS
288	m_cSaoUvlcSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_UVLC );
289	#endif
290	#if SAO_MERGE_ONE_CTX
291	m_cSaoMergeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_FLAG );
292	#else
293	m_cSaoMergeLeftSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_LEFT_FLAG );
294	m_cSaoMergeUpSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_UP_FLAG );
295	#endif
296
297	#if INTRA_BL
298	m_cIntraBLPredFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTRA_BL_PRED_FLAG );
299	#endif
300	m_cSaoTypeIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_TYPE_IDX );
301	m_cTransformSkipSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANSFORMSKIP_FLAG );
302	m_CUTransquantBypassFlagSCModel.initBuffer( eSliceType, iQp, (UChar*)INIT_CU_TRANSQUANT_BYPASS_FLAG );
303	m_pcBinIf->start();
304	}
305
306	Void TEncSbac::codeVPS( TComVPS* pcVPS )
307	{
308	assert (0);
309	return;
310	}
311
312	Void TEncSbac::codeSPS( TComSPS* pcSPS )
313	{
314	assert (0);
315	return;
316	}
317
318	Void TEncSbac::codePPS( TComPPS* pcPPS )
319	{
320	assert (0);
321	return;
322	}
323
324	Void TEncSbac::codeSliceHeader( TComSlice* pcSlice )
325	{
326	assert (0);
327	return;
328	}
329
330	Void TEncSbac::codeTilesWPPEntryPoint( TComSlice* pSlice )
331	{
332	assert (0);
333	return;
334	}
335
336	Void TEncSbac::codeTerminatingBit( UInt uilsLast )
337	{
338	m_pcBinIf->encodeBinTrm( uilsLast );
339	}
340
341	Void TEncSbac::codeSliceFinish()
342	{
343	m_pcBinIf->finish();
344	}
345
346	Void TEncSbac::codeFlush()
347	{
348	m_pcBinIf->flush();
349	}
350
351	Void TEncSbac::encodeStart()
352	{
353	m_pcBinIf->start();
354	}
355
356	Void TEncSbac::xWriteUnarySymbol( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset )
357	{
358	m_pcBinIf->encodeBin( uiSymbol ? 1 : 0, pcSCModel[0] );
359
360	if( 0 == uiSymbol)
361	{
362	return;
363	}
364
365	while( uiSymbol-- )
366	{
367	m_pcBinIf->encodeBin( uiSymbol ? 1 : 0, pcSCModel[ iOffset ] );
368	}
369
370	return;
371	}
372
373	Void TEncSbac::xWriteUnaryMaxSymbol( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol )
374	{
375	if (uiMaxSymbol == 0)
376	{
377	return;
378	}
379
380	m_pcBinIf->encodeBin( uiSymbol ? 1 : 0, pcSCModel[ 0 ] );
381
382	if ( uiSymbol == 0 )
383	{
384	return;
385	}
386
387	Bool bCodeLast = ( uiMaxSymbol > uiSymbol );
388
389	while( --uiSymbol )
390	{
391	m_pcBinIf->encodeBin( 1, pcSCModel[ iOffset ] );
392	}
393	if( bCodeLast )
394	{
395	m_pcBinIf->encodeBin( 0, pcSCModel[ iOffset ] );
396	}
397
398	return;
399	}
400
401	Void TEncSbac::xWriteEpExGolomb( UInt uiSymbol, UInt uiCount )
402	{
403	UInt bins = 0;
404	Int numBins = 0;
405
406	while( uiSymbol >= (UInt)(1<<uiCount) )
407	{
408	bins = 2 * bins + 1;
409	numBins++;
410	uiSymbol -= 1 << uiCount;
411	uiCount ++;
412	}
413	bins = 2 * bins + 0;
414	numBins++;
415
416	bins = (bins << uiCount) \| uiSymbol;
417	numBins += uiCount;
418
419	assert( numBins <= 32 );
420	m_pcBinIf->encodeBinsEP( bins, numBins );
421	}
422
423	/** Coding of coeff_abs_level_minus3
424	* \param uiSymbol value of coeff_abs_level_minus3
425	* \param ruiGoRiceParam reference to Rice parameter
426	* \returns Void
427	*/
428	Void TEncSbac::xWriteCoefRemainExGolomb ( UInt symbol, UInt &rParam )
429	{
430	Int codeNumber = (Int)symbol;
431	UInt length;
432	#if COEF_REMAIN_BIN_REDUCTION
433	if (codeNumber < (COEF_REMAIN_BIN_REDUCTION << rParam))
434	#else
435	if (codeNumber < (8 << rParam))
436	#endif
437	{
438	length = codeNumber>>rParam;
439	m_pcBinIf->encodeBinsEP( (1<<(length+1))-2 , length+1);
440	m_pcBinIf->encodeBinsEP((codeNumber%(1<<rParam)),rParam);
441	}
442	else
443	{
444	length = rParam;
445	#if COEF_REMAIN_BIN_REDUCTION
446	codeNumber = codeNumber - ( COEF_REMAIN_BIN_REDUCTION << rParam);
447	#else
448	codeNumber = codeNumber - ( 8 << rParam);
449	#endif
450	while (codeNumber >= (1<<length))
451	{
452	codeNumber -= (1<<(length++));
453	}
454	#if COEF_REMAIN_BIN_REDUCTION
455	m_pcBinIf->encodeBinsEP((1<<(COEF_REMAIN_BIN_REDUCTION+length+1-rParam))-2,COEF_REMAIN_BIN_REDUCTION+length+1-rParam);
456	#else
457	m_pcBinIf->encodeBinsEP((1<<(8+length+1-rParam))-2,8+length+1-rParam);
458	#endif
459	m_pcBinIf->encodeBinsEP(codeNumber,length);
460	}
461	}
462
463	// SBAC RD
464	Void TEncSbac::load ( TEncSbac* pSrc)
465	{
466	this->xCopyFrom(pSrc);
467	}
468
469	Void TEncSbac::loadIntraDirModeLuma( TEncSbac* pSrc)
470	{
471	m_pcBinIf->copyState( pSrc->m_pcBinIf );
472
473	this->m_cCUIntraPredSCModel .copyFrom( &pSrc->m_cCUIntraPredSCModel );
474	}
475
476
477	Void TEncSbac::store( TEncSbac* pDest)
478	{
479	pDest->xCopyFrom( this );
480	}
481
482
483	Void TEncSbac::xCopyFrom( TEncSbac* pSrc )
484	{
485	m_pcBinIf->copyState( pSrc->m_pcBinIf );
486
487	this->m_uiCoeffCost = pSrc->m_uiCoeffCost;
488	this->m_uiLastQp = pSrc->m_uiLastQp;
489
490	memcpy( m_contextModels, pSrc->m_contextModels, m_numContextModels * sizeof( ContextModel ) );
491	}
492
493	Void TEncSbac::codeMVPIdx ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )
494	{
495	Int iSymbol = pcCU->getMVPIdx(eRefList, uiAbsPartIdx);
496	Int iNum = AMVP_MAX_NUM_CANDS;
497
498	xWriteUnaryMaxSymbol(iSymbol, m_cMVPIdxSCModel.get(0), 1, iNum-1);
499	}
500
501	Void TEncSbac::codePartSize( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth )
502	{
503	PartSize eSize = pcCU->getPartitionSize( uiAbsPartIdx );
504	#if INTRA_BL
505	assert( !pcCU->isIntraBL( uiAbsPartIdx ) );
506	#endif
507
508	if ( pcCU->isIntra( uiAbsPartIdx ) )
509	{
510	if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth )
511	{
512	m_pcBinIf->encodeBin( eSize == SIZE_2Nx2N? 1 : 0, m_cCUPartSizeSCModel.get( 0, 0, 0 ) );
513	}
514	return;
515	}
516
517	switch(eSize)
518	{
519	case SIZE_2Nx2N:
520	{
521	m_pcBinIf->encodeBin( 1, m_cCUPartSizeSCModel.get( 0, 0, 0) );
522	break;
523	}
524	case SIZE_2NxN:
525	case SIZE_2NxnU:
526	case SIZE_2NxnD:
527	{
528	m_pcBinIf->encodeBin( 0, m_cCUPartSizeSCModel.get( 0, 0, 0) );
529	m_pcBinIf->encodeBin( 1, m_cCUPartSizeSCModel.get( 0, 0, 1) );
530	if ( pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) )
531	{
532	if (eSize == SIZE_2NxN)
533	{
534	m_pcBinIf->encodeBin(1, m_cCUAMPSCModel.get( 0, 0, 0 ));
535	}
536	else
537	{
538	m_pcBinIf->encodeBin(0, m_cCUAMPSCModel.get( 0, 0, 0 ));
539	m_pcBinIf->encodeBinEP((eSize == SIZE_2NxnU? 0: 1));
540	}
541	}
542	break;
543	}
544	case SIZE_Nx2N:
545	case SIZE_nLx2N:
546	case SIZE_nRx2N:
547	{
548	m_pcBinIf->encodeBin( 0, m_cCUPartSizeSCModel.get( 0, 0, 0) );
549	m_pcBinIf->encodeBin( 0, m_cCUPartSizeSCModel.get( 0, 0, 1) );
550	if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth && !( pcCU->getWidth(uiAbsPartIdx) == 8 && pcCU->getHeight(uiAbsPartIdx) == 8 ) )
551	{
552	m_pcBinIf->encodeBin( 1, m_cCUPartSizeSCModel.get( 0, 0, 2) );
553	}
554	if ( pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) )
555	{
556	if (eSize == SIZE_Nx2N)
557	{
558	m_pcBinIf->encodeBin(1, m_cCUAMPSCModel.get( 0, 0, 0 ));
559	}
560	else
561	{
562	m_pcBinIf->encodeBin(0, m_cCUAMPSCModel.get( 0, 0, 0 ));
563	m_pcBinIf->encodeBinEP((eSize == SIZE_nLx2N? 0: 1));
564	}
565	}
566	break;
567	}
568	case SIZE_NxN:
569	{
570	if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth && !( pcCU->getWidth(uiAbsPartIdx) == 8 && pcCU->getHeight(uiAbsPartIdx) == 8 ) )
571	{
572	m_pcBinIf->encodeBin( 0, m_cCUPartSizeSCModel.get( 0, 0, 0) );
573	m_pcBinIf->encodeBin( 0, m_cCUPartSizeSCModel.get( 0, 0, 1) );
574	m_pcBinIf->encodeBin( 0, m_cCUPartSizeSCModel.get( 0, 0, 2) );
575	}
576	break;
577	}
578	default:
579	{
580	assert(0);
581	}
582	}
583	}
584
585	/** code prediction mode
586	* \param pcCU
587	* \param uiAbsPartIdx
588	* \returns Void
589	*/
590	Void TEncSbac::codePredMode( TComDataCU* pcCU, UInt uiAbsPartIdx )
591	{
592	// get context function is here
593	Int iPredMode = pcCU->getPredictionMode( uiAbsPartIdx );
594	m_pcBinIf->encodeBin( iPredMode == MODE_INTER ? 0 : 1, m_cCUPredModeSCModel.get( 0, 0, 0 ) );
595	}
596
597	Void TEncSbac::codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx )
598	{
599	UInt uiSymbol = pcCU->getCUTransquantBypass(uiAbsPartIdx);
600	m_pcBinIf->encodeBin( uiSymbol, m_CUTransquantBypassFlagSCModel.get( 0, 0, 0 ) );
601	}
602
603	/** code skip flag
604	* \param pcCU
605	* \param uiAbsPartIdx
606	* \returns Void
607	*/
608	Void TEncSbac::codeSkipFlag( TComDataCU* pcCU, UInt uiAbsPartIdx )
609	{
610	// get context function is here
611	UInt uiSymbol = pcCU->isSkipped( uiAbsPartIdx ) ? 1 : 0;
612	UInt uiCtxSkip = pcCU->getCtxSkipFlag( uiAbsPartIdx ) ;
613	m_pcBinIf->encodeBin( uiSymbol, m_cCUSkipFlagSCModel.get( 0, 0, uiCtxSkip ) );
614	DTRACE_CABAC_VL( g_nSymbolCounter++ );
615	DTRACE_CABAC_T( "\tSkipFlag" );
616	DTRACE_CABAC_T( "\tuiCtxSkip: ");
617	DTRACE_CABAC_V( uiCtxSkip );
618	DTRACE_CABAC_T( "\tuiSymbol: ");
619	DTRACE_CABAC_V( uiSymbol );
620	DTRACE_CABAC_T( "\n");
621	}
622
623	#if INTRA_BL
624	/** code intra_bl flag
625	* \param pcCU
626	* \param uiAbsPartIdx
627	* \returns Void
628	*/
629	Void TEncSbac::codeIntraBLFlag( TComDataCU* pcCU, UInt uiAbsPartIdx )
630	{
631	// get context function is here
632	UInt uiSymbol = pcCU->isIntraBL( uiAbsPartIdx ) ? 1 : 0;
633
634	UInt uiCtxIntraBL = pcCU->getCtxIntraBLFlag( uiAbsPartIdx ) ;
635	m_pcBinIf->encodeBin(uiSymbol, m_cIntraBLPredFlagSCModel.get( 0, 0, uiCtxIntraBL ));
636
637	DTRACE_CABAC_VL( g_nSymbolCounter++ );
638	DTRACE_CABAC_T( "\tuiSymbol: ");
639	DTRACE_CABAC_V( uiSymbol );
640	DTRACE_CABAC_T( "\n");
641	}
642	#endif
643
644	/** code merge flag
645	* \param pcCU
646	* \param uiAbsPartIdx
647	* \returns Void
648	*/
649	Void TEncSbac::codeMergeFlag( TComDataCU* pcCU, UInt uiAbsPartIdx )
650	{
651	const UInt uiSymbol = pcCU->getMergeFlag( uiAbsPartIdx ) ? 1 : 0;
652	m_pcBinIf->encodeBin( uiSymbol, *m_cCUMergeFlagExtSCModel.get( 0 ) );
653
654	DTRACE_CABAC_VL( g_nSymbolCounter++ );
655	DTRACE_CABAC_T( "\tMergeFlag: " );
656	DTRACE_CABAC_V( uiSymbol );
657	DTRACE_CABAC_T( "\tAddress: " );
658	DTRACE_CABAC_V( pcCU->getAddr() );
659	DTRACE_CABAC_T( "\tuiAbsPartIdx: " );
660	DTRACE_CABAC_V( uiAbsPartIdx );
661	DTRACE_CABAC_T( "\n" );
662	}
663
664	/** code merge index
665	* \param pcCU
666	* \param uiAbsPartIdx
667	* \returns Void
668	*/
669	Void TEncSbac::codeMergeIndex( TComDataCU* pcCU, UInt uiAbsPartIdx )
670	{
671	UInt uiUnaryIdx = pcCU->getMergeIndex( uiAbsPartIdx );
672	UInt uiNumCand = pcCU->getSlice()->getMaxNumMergeCand();
673	if ( uiNumCand > 1 )
674	{
675	for( UInt ui = 0; ui < uiNumCand - 1; ++ui )
676	{
677	const UInt uiSymbol = ui == uiUnaryIdx ? 0 : 1;
678	if ( ui==0 )
679	{
680	m_pcBinIf->encodeBin( uiSymbol, m_cCUMergeIdxExtSCModel.get( 0, 0, 0 ) );
681	}
682	else
683	{
684	m_pcBinIf->encodeBinEP( uiSymbol );
685	}
686	if( uiSymbol == 0 )
687	{
688	break;
689	}
690	}
691	}
692	DTRACE_CABAC_VL( g_nSymbolCounter++ );
693	DTRACE_CABAC_T( "\tparseMergeIndex()" );
694	DTRACE_CABAC_T( "\tuiMRGIdx= " );
695	DTRACE_CABAC_V( pcCU->getMergeIndex( uiAbsPartIdx ) );
696	DTRACE_CABAC_T( "\n" );
697	}
698
699	Void TEncSbac::codeSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth )
700	{
701	if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth )
702	return;
703
704	UInt uiCtx = pcCU->getCtxSplitFlag( uiAbsPartIdx, uiDepth );
705	UInt uiCurrSplitFlag = ( pcCU->getDepth( uiAbsPartIdx ) > uiDepth ) ? 1 : 0;
706
707	assert( uiCtx < 3 );
708	m_pcBinIf->encodeBin( uiCurrSplitFlag, m_cCUSplitFlagSCModel.get( 0, 0, uiCtx ) );
709	DTRACE_CABAC_VL( g_nSymbolCounter++ )
710	DTRACE_CABAC_T( "\tSplitFlag\n" )
711	return;
712	}
713
714	Void TEncSbac::codeTransformSubdivFlag( UInt uiSymbol, UInt uiCtx )
715	{
716	m_pcBinIf->encodeBin( uiSymbol, m_cCUTransSubdivFlagSCModel.get( 0, 0, uiCtx ) );
717	DTRACE_CABAC_VL( g_nSymbolCounter++ )
718	DTRACE_CABAC_T( "\tparseTransformSubdivFlag()" )
719	DTRACE_CABAC_T( "\tsymbol=" )
720	DTRACE_CABAC_V( uiSymbol )
721	DTRACE_CABAC_T( "\tctx=" )
722	DTRACE_CABAC_V( uiCtx )
723	DTRACE_CABAC_T( "\n" )
724	}
725
726	Void TEncSbac::codeIntraDirLumaAng( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiple)
727	{
728	UInt dir[4],j;
729	Int preds[4][3] = {{-1, -1, -1},{-1, -1, -1},{-1, -1, -1},{-1, -1, -1}};
730	Int predNum[4], predIdx[4] ={ -1,-1,-1,-1};
731	PartSize mode = pcCU->getPartitionSize( absPartIdx );
732	UInt partNum = isMultiple?(mode==SIZE_NxN?4:1):1;
733	UInt partOffset = ( pcCU->getPic()->getNumPartInCU() >> ( pcCU->getDepth(absPartIdx) << 1 ) ) >> 2;
734	for (j=0;j<partNum;j++)
735	{
736	dir[j] = pcCU->getLumaIntraDir( absPartIdx+partOffset*j );
737	predNum[j] = pcCU->getIntraDirLumaPredictor(absPartIdx+partOffset*j, preds[j]);
738	for(UInt i = 0; i < predNum[j]; i++)
739	{
740	if(dir[j] == preds[j][i])
741	{
742	predIdx[j] = i;
743	}
744	}
745	m_pcBinIf->encodeBin((predIdx[j] != -1)? 1 : 0, m_cCUIntraPredSCModel.get( 0, 0, 0 ) );
746	}
747	for (j=0;j<partNum;j++)
748	{
749	if(predIdx[j] != -1)
750	{
751	m_pcBinIf->encodeBinEP( predIdx[j] ? 1 : 0 );
752	if (predIdx[j])
753	{
754	m_pcBinIf->encodeBinEP( predIdx[j]-1 );
755	}
756	}
757	else
758	{
759	if (preds[j][0] > preds[j][1])
760	{
761	std::swap(preds[j][0], preds[j][1]);
762	}
763	if (preds[j][0] > preds[j][2])
764	{
765	std::swap(preds[j][0], preds[j][2]);
766	}
767	if (preds[j][1] > preds[j][2])
768	{
769	std::swap(preds[j][1], preds[j][2]);
770	}
771	for(Int i = (predNum[j] - 1); i >= 0; i--)
772	{
773	dir[j] = dir[j] > preds[j][i] ? dir[j] - 1 : dir[j];
774	}
775	m_pcBinIf->encodeBinsEP( dir[j], 5 );
776	}
777	}
778	return;
779	}
780
781	Void TEncSbac::codeIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx )
782	{
783	UInt uiIntraDirChroma = pcCU->getChromaIntraDir( uiAbsPartIdx );
784
785	if( uiIntraDirChroma == DM_CHROMA_IDX )
786	{
787	m_pcBinIf->encodeBin( 0, m_cCUChromaPredSCModel.get( 0, 0, 0 ) );
788	}
789	#if !REMOVE_LMCHROMA
790	else if( uiIntraDirChroma == LM_CHROMA_IDX )
791	{
792	m_pcBinIf->encodeBin( 1, m_cCUChromaPredSCModel.get( 0, 0, 0 ) );
793	m_pcBinIf->encodeBin( 0, m_cCUChromaPredSCModel.get( 0, 0, 1 ) );
794	}
795	#endif
796	else
797	{
798	UInt uiAllowedChromaDir[ NUM_CHROMA_MODE ];
799	pcCU->getAllowedChromaDir( uiAbsPartIdx, uiAllowedChromaDir );
800
801	#if REMOVE_LMCHROMA
802	for( Int i = 0; i < NUM_CHROMA_MODE - 1; i++ )
803	#else
804	for( Int i = 0; i < NUM_CHROMA_MODE - 2; i++ )
805	#endif
806	{
807	if( uiIntraDirChroma == uiAllowedChromaDir[i] )
808	{
809	uiIntraDirChroma = i;
810	break;
811	}
812	}
813	m_pcBinIf->encodeBin( 1, m_cCUChromaPredSCModel.get( 0, 0, 0 ) );
814
815	#if !REMOVE_LMCHROMA
816	if (pcCU->getSlice()->getSPS()->getUseLMChroma())
817	{
818	m_pcBinIf->encodeBin( 1, m_cCUChromaPredSCModel.get( 0, 0, 1 ));
819	}
820	#endif
821	m_pcBinIf->encodeBinsEP( uiIntraDirChroma, 2 );
822	}
823	return;
824	}
825
826	Void TEncSbac::codeInterDir( TComDataCU* pcCU, UInt uiAbsPartIdx )
827	{
828	const UInt uiInterDir = pcCU->getInterDir( uiAbsPartIdx ) - 1;
829	const UInt uiCtx = pcCU->getCtxInterDir( uiAbsPartIdx );
830	ContextModel *pCtx = m_cCUInterDirSCModel.get( 0 );
831	#if DISALLOW_BIPRED_IN_8x4_4x8PUS
832	if (pcCU->getPartitionSize(uiAbsPartIdx) == SIZE_2Nx2N \|\| pcCU->getHeight(uiAbsPartIdx) != 8 )
833	{
834	#endif
835	m_pcBinIf->encodeBin( uiInterDir == 2 ? 1 : 0, *( pCtx + uiCtx ) );
836	#if DISALLOW_BIPRED_IN_8x4_4x8PUS
837	}
838	#endif
839	if (uiInterDir < 2)
840	{
841	m_pcBinIf->encodeBin( uiInterDir, *( pCtx + 4 ) );
842	}
843	return;
844	}
845
846	Void TEncSbac::codeRefFrmIdx( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )
847	{
848	{
849	Int iRefFrame = pcCU->getCUMvField( eRefList )->getRefIdx( uiAbsPartIdx );
850	ContextModel *pCtx = m_cCURefPicSCModel.get( 0 );
851	m_pcBinIf->encodeBin( ( iRefFrame == 0 ? 0 : 1 ), *pCtx );
852
853	if( iRefFrame > 0 )
854	{
855	#if REF_IDX_BYPASS
856	UInt uiRefNum = pcCU->getSlice()->getNumRefIdx( eRefList ) - 2;
857	pCtx++;
858	iRefFrame--;
859	for( UInt ui = 0; ui < uiRefNum; ++ui )
860	{
861	const UInt uiSymbol = ui == iRefFrame ? 0 : 1;
862	if( ui == 0 )
863	{
864	m_pcBinIf->encodeBin( uiSymbol, *pCtx );
865	}
866	else
867	{
868	m_pcBinIf->encodeBinEP( uiSymbol );
869	}
870	if( uiSymbol == 0 )
871	{
872	break;
873	}
874	}
875	#else
876	xWriteUnaryMaxSymbol( iRefFrame - 1, pCtx + 1, 1, pcCU->getSlice()->getNumRefIdx( eRefList )-2 );
877	#endif
878	}
879	}
880	return;
881	}
882
883	Void TEncSbac::codeMvd( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )
884	{
885	if(pcCU->getSlice()->getMvdL1ZeroFlag() && eRefList == REF_PIC_LIST_1 && pcCU->getInterDir(uiAbsPartIdx)==3)
886	{
887	return;
888	}
889
890	const TComCUMvField* pcCUMvField = pcCU->getCUMvField( eRefList );
891	const Int iHor = pcCUMvField->getMvd( uiAbsPartIdx ).getHor();
892	const Int iVer = pcCUMvField->getMvd( uiAbsPartIdx ).getVer();
893	ContextModel* pCtx = m_cCUMvdSCModel.get( 0 );
894
895	m_pcBinIf->encodeBin( iHor != 0 ? 1 : 0, *pCtx );
896	m_pcBinIf->encodeBin( iVer != 0 ? 1 : 0, *pCtx );
897
898	const Bool bHorAbsGr0 = iHor != 0;
899	const Bool bVerAbsGr0 = iVer != 0;
900	const UInt uiHorAbs = 0 > iHor ? -iHor : iHor;
901	const UInt uiVerAbs = 0 > iVer ? -iVer : iVer;
902	pCtx++;
903
904	if( bHorAbsGr0 )
905	{
906	m_pcBinIf->encodeBin( uiHorAbs > 1 ? 1 : 0, *pCtx );
907	}
908
909	if( bVerAbsGr0 )
910	{
911	m_pcBinIf->encodeBin( uiVerAbs > 1 ? 1 : 0, *pCtx );
912	}
913
914	if( bHorAbsGr0 )
915	{
916	if( uiHorAbs > 1 )
917	{
918	xWriteEpExGolomb( uiHorAbs-2, 1 );
919	}
920
921	m_pcBinIf->encodeBinEP( 0 > iHor ? 1 : 0 );
922	}
923
924	if( bVerAbsGr0 )
925	{
926	if( uiVerAbs > 1 )
927	{
928	xWriteEpExGolomb( uiVerAbs-2, 1 );
929	}
930
931	m_pcBinIf->encodeBinEP( 0 > iVer ? 1 : 0 );
932	}
933
934	return;
935	}
936
937	Void TEncSbac::codeDeltaQP( TComDataCU* pcCU, UInt uiAbsPartIdx )
938	{
939	Int iDQp = pcCU->getQP( uiAbsPartIdx ) - pcCU->getRefQP( uiAbsPartIdx );
940
941	Int qpBdOffsetY = pcCU->getSlice()->getSPS()->getQpBDOffsetY();
942	iDQp = (iDQp + 78 + qpBdOffsetY + (qpBdOffsetY/2)) % (52 + qpBdOffsetY) - 26 - (qpBdOffsetY/2);
943
944	#if CU_DQP_TU_EG
945	UInt uiAbsDQp = (UInt)((iDQp > 0)? iDQp : (-iDQp));
946	UInt TUValue = min((Int)uiAbsDQp, CU_DQP_TU_CMAX);
947	xWriteUnaryMaxSymbol( TUValue, &m_cCUDeltaQpSCModel.get( 0, 0, 0 ), 1, CU_DQP_TU_CMAX);
948	if( uiAbsDQp >= CU_DQP_TU_CMAX )
949	{
950	xWriteEpExGolomb( uiAbsDQp - CU_DQP_TU_CMAX, CU_DQP_EG_k );
951	}
952
953	if ( uiAbsDQp > 0)
954	{
955	UInt uiSign = (iDQp > 0 ? 0 : 1);
956	m_pcBinIf->encodeBinEP(uiSign);
957	}
958	#else
959	if ( iDQp == 0 )
960	{
961	m_pcBinIf->encodeBin( 0, m_cCUDeltaQpSCModel.get( 0, 0, 0 ) );
962	}
963	else
964	{
965	m_pcBinIf->encodeBin( 1, m_cCUDeltaQpSCModel.get( 0, 0, 0 ) );
966
967	UInt uiSign = (iDQp > 0 ? 0 : 1);
968
969	m_pcBinIf->encodeBinEP(uiSign);
970
971	assert(iDQp >= -(26+(qpBdOffsetY/2)));
972	assert(iDQp <= (25+(qpBdOffsetY/2)));
973
974	UInt uiMaxAbsDQpMinus1 = 24 + (qpBdOffsetY/2) + (uiSign);
975	UInt uiAbsDQpMinus1 = (UInt)((iDQp > 0)? iDQp : (-iDQp)) - 1;
976	xWriteUnaryMaxSymbol( uiAbsDQpMinus1, &m_cCUDeltaQpSCModel.get( 0, 0, 1 ), 1, uiMaxAbsDQpMinus1);
977	}
978	#endif
979
980	return;
981	}
982
983	Void TEncSbac::codeQtCbf( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth )
984	{
985	UInt uiCbf = pcCU->getCbf ( uiAbsPartIdx, eType, uiTrDepth );
986	UInt uiCtx = pcCU->getCtxQtCbf( uiAbsPartIdx, eType, uiTrDepth );
987	m_pcBinIf->encodeBin( uiCbf , m_cCUQtCbfSCModel.get( 0, eType ? TEXT_CHROMA : eType, uiCtx ) );
988	DTRACE_CABAC_VL( g_nSymbolCounter++ )
989	DTRACE_CABAC_T( "\tparseQtCbf()" )
990	DTRACE_CABAC_T( "\tsymbol=" )
991	DTRACE_CABAC_V( uiCbf )
992	DTRACE_CABAC_T( "\tctx=" )
993	DTRACE_CABAC_V( uiCtx )
994	DTRACE_CABAC_T( "\tetype=" )
995	DTRACE_CABAC_V( eType )
996	DTRACE_CABAC_T( "\tuiAbsPartIdx=" )
997	DTRACE_CABAC_V( uiAbsPartIdx )
998	DTRACE_CABAC_T( "\n" )
999	}
1000
1001	void TEncSbac::codeTransformSkipFlags (TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType )
1002	{
1003	if (pcCU->getCUTransquantBypass(uiAbsPartIdx))
1004	{
1005	return;
1006	}
1007	#if !INTER_TRANSFORMSKIP
1008	if(!pcCU->isIntra(uiAbsPartIdx))
1009	{
1010	return;
1011	}
1012	#endif
1013	if(width != 4 \|\| height != 4)
1014	{
1015	return;
1016	}
1017
1018	UInt useTransformSkip = pcCU->getTransformSkip( uiAbsPartIdx,eTType);
1019	m_pcBinIf->encodeBin( useTransformSkip, m_cTransformSkipSCModel.get( 0, eTType? TEXT_CHROMA: TEXT_LUMA, 0 ) );
1020	DTRACE_CABAC_VL( g_nSymbolCounter++ )
1021	DTRACE_CABAC_T("\tparseTransformSkip()");
1022	DTRACE_CABAC_T( "\tsymbol=" )
1023	DTRACE_CABAC_V( useTransformSkip )
1024	DTRACE_CABAC_T( "\tAddr=" )
1025	DTRACE_CABAC_V( pcCU->getAddr() )
1026	DTRACE_CABAC_T( "\tetype=" )
1027	DTRACE_CABAC_V( eTType )
1028	DTRACE_CABAC_T( "\tuiAbsPartIdx=" )
1029	DTRACE_CABAC_V( uiAbsPartIdx )
1030	DTRACE_CABAC_T( "\n" )
1031	}
1032
1033	/** Code I_PCM information.
1034	* \param pcCU pointer to CU
1035	* \param uiAbsPartIdx CU index
1036	* \param numIPCM the number of succesive IPCM blocks with the same size
1037	* \param firstIPCMFlag
1038	* \returns Void
1039	*/
1040	Void TEncSbac::codeIPCMInfo( TComDataCU* pcCU, UInt uiAbsPartIdx, Int numIPCM, Bool firstIPCMFlag)
1041	{
1042	UInt uiIPCM = (pcCU->getIPCMFlag(uiAbsPartIdx) == true)? 1 : 0;
1043
1044	Bool writePCMSampleFlag = pcCU->getIPCMFlag(uiAbsPartIdx);
1045
1046	if( uiIPCM == 0 \|\| firstIPCMFlag)
1047	{
1048	m_pcBinIf->encodeBinTrm (uiIPCM);
1049
1050	if ( firstIPCMFlag )
1051	{
1052	m_pcBinIf->encodeNumSubseqIPCM( numIPCM - 1 );
1053	m_pcBinIf->encodePCMAlignBits();
1054	}
1055	}
1056
1057	if (writePCMSampleFlag)
1058	{
1059	UInt uiMinCoeffSize = pcCU->getPic()->getMinCUWidth()*pcCU->getPic()->getMinCUHeight();
1060	UInt uiLumaOffset = uiMinCoeffSize*uiAbsPartIdx;
1061	UInt uiChromaOffset = uiLumaOffset>>2;
1062	Pel* piPCMSample;
1063	UInt uiWidth;
1064	UInt uiHeight;
1065	UInt uiSampleBits;
1066	UInt uiX, uiY;
1067
1068	piPCMSample = pcCU->getPCMSampleY() + uiLumaOffset;
1069	uiWidth = pcCU->getWidth(uiAbsPartIdx);
1070	uiHeight = pcCU->getHeight(uiAbsPartIdx);
1071	uiSampleBits = pcCU->getSlice()->getSPS()->getPCMBitDepthLuma();
1072
1073	for(uiY = 0; uiY < uiHeight; uiY++)
1074	{
1075	for(uiX = 0; uiX < uiWidth; uiX++)
1076	{
1077	UInt uiSample = piPCMSample[uiX];
1078
1079	m_pcBinIf->xWritePCMCode(uiSample, uiSampleBits);
1080	}
1081	piPCMSample += uiWidth;
1082	}
1083
1084	piPCMSample = pcCU->getPCMSampleCb() + uiChromaOffset;
1085	uiWidth = pcCU->getWidth(uiAbsPartIdx)/2;
1086	uiHeight = pcCU->getHeight(uiAbsPartIdx)/2;
1087	uiSampleBits = pcCU->getSlice()->getSPS()->getPCMBitDepthChroma();
1088
1089	for(uiY = 0; uiY < uiHeight; uiY++)
1090	{
1091	for(uiX = 0; uiX < uiWidth; uiX++)
1092	{
1093	UInt uiSample = piPCMSample[uiX];
1094
1095	m_pcBinIf->xWritePCMCode(uiSample, uiSampleBits);
1096	}
1097	piPCMSample += uiWidth;
1098	}
1099
1100	piPCMSample = pcCU->getPCMSampleCr() + uiChromaOffset;
1101	uiWidth = pcCU->getWidth(uiAbsPartIdx)/2;
1102	uiHeight = pcCU->getHeight(uiAbsPartIdx)/2;
1103	uiSampleBits = pcCU->getSlice()->getSPS()->getPCMBitDepthChroma();
1104
1105	for(uiY = 0; uiY < uiHeight; uiY++)
1106	{
1107	for(uiX = 0; uiX < uiWidth; uiX++)
1108	{
1109	UInt uiSample = piPCMSample[uiX];
1110
1111	m_pcBinIf->xWritePCMCode(uiSample, uiSampleBits);
1112	}
1113	piPCMSample += uiWidth;
1114	}
1115	numIPCM--;
1116	if(numIPCM == 0)
1117	{
1118	m_pcBinIf->resetBac();
1119	}
1120	}
1121	}
1122
1123	Void TEncSbac::codeQtRootCbf( TComDataCU* pcCU, UInt uiAbsPartIdx )
1124	{
1125	UInt uiCbf = pcCU->getQtRootCbf( uiAbsPartIdx );
1126	UInt uiCtx = 0;
1127	m_pcBinIf->encodeBin( uiCbf , m_cCUQtRootCbfSCModel.get( 0, 0, uiCtx ) );
1128	DTRACE_CABAC_VL( g_nSymbolCounter++ )
1129	DTRACE_CABAC_T( "\tparseQtRootCbf()" )
1130	DTRACE_CABAC_T( "\tsymbol=" )
1131	DTRACE_CABAC_V( uiCbf )
1132	DTRACE_CABAC_T( "\tctx=" )
1133	DTRACE_CABAC_V( uiCtx )
1134	DTRACE_CABAC_T( "\tuiAbsPartIdx=" )
1135	DTRACE_CABAC_V( uiAbsPartIdx )
1136	DTRACE_CABAC_T( "\n" )
1137	}
1138
1139	#if TU_ZERO_CBF_RDO
1140	Void TEncSbac::codeQtCbfZero( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth )
1141	{
1142	// this function is only used to estimate the bits when cbf is 0
1143	// and will never be called when writing the bistream. do not need to write log
1144	UInt uiCbf = 0;
1145	UInt uiCtx = pcCU->getCtxQtCbf( uiAbsPartIdx, eType, uiTrDepth );
1146	m_pcBinIf->encodeBin( uiCbf , m_cCUQtCbfSCModel.get( 0, eType ? TEXT_CHROMA : eType, uiCtx ) );
1147	}
1148
1149	Void TEncSbac::codeQtRootCbfZero( TComDataCU* pcCU, UInt uiAbsPartIdx )
1150	{
1151	// this function is only used to estimate the bits when cbf is 0
1152	// and will never be called when writing the bistream. do not need to write log
1153	UInt uiCbf = 0;
1154	UInt uiCtx = 0;
1155	m_pcBinIf->encodeBin( uiCbf , m_cCUQtRootCbfSCModel.get( 0, 0, uiCtx ) );
1156	}
1157	#endif
1158
1159	/** Encode (X,Y) position of the last significant coefficient
1160	* \param uiPosX X component of last coefficient
1161	* \param uiPosY Y component of last coefficient
1162	* \param width Block width
1163	* \param height Block height
1164	* \param eTType plane type / luminance or chrominance
1165	* \param uiScanIdx scan type (zig-zag, hor, ver)
1166	* This method encodes the X and Y component within a block of the last significant coefficient.
1167	*/
1168	Void TEncSbac::codeLastSignificantXY( UInt uiPosX, UInt uiPosY, Int width, Int height, TextType eTType, UInt uiScanIdx )
1169	{
1170	// swap
1171	if( uiScanIdx == SCAN_VER )
1172	{
1173	swap( uiPosX, uiPosY );
1174	}
1175
1176	UInt uiCtxLast;
1177	ContextModel *pCtxX = m_cCuCtxLastX.get( 0, eTType );
1178	ContextModel *pCtxY = m_cCuCtxLastY.get( 0, eTType );
1179	UInt uiGroupIdxX = g_uiGroupIdx[ uiPosX ];
1180	UInt uiGroupIdxY = g_uiGroupIdx[ uiPosY ];
1181
1182
1183	Int blkSizeOffsetX, blkSizeOffsetY, shiftX, shiftY;
1184	blkSizeOffsetX = eTType ? 0: (g_aucConvertToBit[ width ] *3 + ((g_aucConvertToBit[ width ] +1)>>2));
1185	blkSizeOffsetY = eTType ? 0: (g_aucConvertToBit[ height ]*3 + ((g_aucConvertToBit[ height ]+1)>>2));
1186	shiftX= eTType ? g_aucConvertToBit[ width ] :((g_aucConvertToBit[ width ]+3)>>2);
1187	shiftY= eTType ? g_aucConvertToBit[ height ] :((g_aucConvertToBit[ height ]+3)>>2);
1188	// posX
1189	for( uiCtxLast = 0; uiCtxLast < uiGroupIdxX; uiCtxLast++ )
1190	{
1191	m_pcBinIf->encodeBin( 1, *( pCtxX + blkSizeOffsetX + (uiCtxLast >>shiftX) ) );
1192	}
1193	if( uiGroupIdxX < g_uiGroupIdx[ width - 1 ])
1194	{
1195	m_pcBinIf->encodeBin( 0, *( pCtxX + blkSizeOffsetX + (uiCtxLast >>shiftX) ) );
1196	}
1197
1198	// posY
1199	for( uiCtxLast = 0; uiCtxLast < uiGroupIdxY; uiCtxLast++ )
1200	{
1201	m_pcBinIf->encodeBin( 1, *( pCtxY + blkSizeOffsetY + (uiCtxLast >>shiftY) ) );
1202	}
1203	if( uiGroupIdxY < g_uiGroupIdx[ height - 1 ])
1204	{
1205	m_pcBinIf->encodeBin( 0, *( pCtxY + blkSizeOffsetY + (uiCtxLast >>shiftY) ) );
1206	}
1207	if ( uiGroupIdxX > 3 )
1208	{
1209	UInt uiCount = ( uiGroupIdxX - 2 ) >> 1;
1210	uiPosX = uiPosX - g_uiMinInGroup[ uiGroupIdxX ];
1211	for (Int i = uiCount - 1 ; i >= 0; i-- )
1212	{
1213	m_pcBinIf->encodeBinEP( ( uiPosX >> i ) & 1 );
1214	}
1215	}
1216	if ( uiGroupIdxY > 3 )
1217	{
1218	UInt uiCount = ( uiGroupIdxY - 2 ) >> 1;
1219	uiPosY = uiPosY - g_uiMinInGroup[ uiGroupIdxY ];
1220	for ( Int i = uiCount - 1 ; i >= 0; i-- )
1221	{
1222	m_pcBinIf->encodeBinEP( ( uiPosY >> i ) & 1 );
1223	}
1224	}
1225	}
1226
1227	Void TEncSbac::codeCoeffNxN( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType )
1228	{
1229	DTRACE_CABAC_VL( g_nSymbolCounter++ )
1230	DTRACE_CABAC_T( "\tparseCoeffNxN()\teType=" )
1231	DTRACE_CABAC_V( eTType )
1232	DTRACE_CABAC_T( "\twidth=" )
1233	DTRACE_CABAC_V( uiWidth )
1234	DTRACE_CABAC_T( "\theight=" )
1235	DTRACE_CABAC_V( uiHeight )
1236	DTRACE_CABAC_T( "\tdepth=" )
1237	DTRACE_CABAC_V( uiDepth )
1238	DTRACE_CABAC_T( "\tabspartidx=" )
1239	DTRACE_CABAC_V( uiAbsPartIdx )
1240	DTRACE_CABAC_T( "\ttoCU-X=" )
1241	DTRACE_CABAC_V( pcCU->getCUPelX() )
1242	DTRACE_CABAC_T( "\ttoCU-Y=" )
1243	DTRACE_CABAC_V( pcCU->getCUPelY() )
1244	DTRACE_CABAC_T( "\tCU-addr=" )
1245	DTRACE_CABAC_V( pcCU->getAddr() )
1246	DTRACE_CABAC_T( "\tinCU-X=" )
1247	DTRACE_CABAC_V( g_auiRasterToPelX[ g_auiZscanToRaster[uiAbsPartIdx] ] )
1248	DTRACE_CABAC_T( "\tinCU-Y=" )
1249	DTRACE_CABAC_V( g_auiRasterToPelY[ g_auiZscanToRaster[uiAbsPartIdx] ] )
1250	DTRACE_CABAC_T( "\tpredmode=" )
1251	DTRACE_CABAC_V( pcCU->getPredictionMode( uiAbsPartIdx ) )
1252	DTRACE_CABAC_T( "\n" )
1253
1254	if( uiWidth > m_pcSlice->getSPS()->getMaxTrSize() )
1255	{
1256	uiWidth = m_pcSlice->getSPS()->getMaxTrSize();
1257	uiHeight = m_pcSlice->getSPS()->getMaxTrSize();
1258	}
1259
1260	UInt uiNumSig = 0;
1261
1262	// compute number of significant coefficients
1263	uiNumSig = TEncEntropy::countNonZeroCoeffs(pcCoef, uiWidth * uiHeight);
1264
1265	if ( uiNumSig == 0 )
1266	return;
1267	#if PPS_TS_FLAG
1268	if(pcCU->getSlice()->getPPS()->getUseTransformSkip())
1269	#else
1270	if(pcCU->getSlice()->getSPS()->getUseTransformSkip())
1271	#endif
1272	{
1273	codeTransformSkipFlags( pcCU,uiAbsPartIdx, uiWidth, uiHeight, uiDepth, eTType );
1274	}
1275	eTType = eTType == TEXT_LUMA ? TEXT_LUMA : ( eTType == TEXT_NONE ? TEXT_NONE : TEXT_CHROMA );
1276
1277	//----- encode significance map -----
1278	const UInt uiLog2BlockSize = g_aucConvertToBit[ uiWidth ] + 2;
1279	UInt uiScanIdx = pcCU->getCoefScanIdx(uiAbsPartIdx, uiWidth, eTType==TEXT_LUMA, pcCU->isIntra(uiAbsPartIdx));
1280	if (uiScanIdx == SCAN_ZIGZAG)
1281	{
1282	// Map zigzag to diagonal scan
1283	uiScanIdx = SCAN_DIAG;
1284	}
1285	Int blockType = uiLog2BlockSize;
1286	if (uiWidth != uiHeight)
1287	{
1288	uiScanIdx = SCAN_DIAG;
1289	blockType = 4;
1290	}
1291
1292	#if REMOVE_NSQT
1293	const UInt *scan = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlockSize - 1 ];
1294	#else
1295	const UInt * scan;
1296	if (uiWidth == uiHeight)
1297	{
1298	scan = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlockSize - 1 ];
1299	}
1300	else
1301	{
1302	scan = g_sigScanNSQT[ uiLog2BlockSize - 2 ];
1303	}
1304	#endif
1305
1306	Bool beValid;
1307	if (pcCU->getCUTransquantBypass(uiAbsPartIdx))
1308	{
1309	beValid = false;
1310	}
1311	else
1312	{
1313	beValid = pcCU->getSlice()->getPPS()->getSignHideFlag() > 0;
1314	}
1315
1316	// Find position of last coefficient
1317	Int scanPosLast = -1;
1318	Int posLast;
1319
1320	const UInt * scanCG;
1321	#if !REMOVE_NSQT
1322	if (uiWidth == uiHeight)
1323	#endif
1324	{
1325	scanCG = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlockSize > 3 ? uiLog2BlockSize-2-1 : 0 ];
1326	if( uiLog2BlockSize == 3 )
1327	{
1328	scanCG = g_sigLastScan8x8[ uiScanIdx ];
1329	}
1330	else if( uiLog2BlockSize == 5 )
1331	{
1332	scanCG = g_sigLastScanCG32x32;
1333	}
1334	}
1335	#if !REMOVE_NSQT
1336	else
1337	{
1338	scanCG = g_sigCGScanNSQT[ uiLog2BlockSize - 2 ];
1339	}
1340	#endif
1341	UInt uiSigCoeffGroupFlag[ MLS_GRP_NUM ];
1342	static const UInt uiShift = MLS_CG_SIZE >> 1;
1343	const UInt uiNumBlkSide = uiWidth >> uiShift;
1344
1345	::memset( uiSigCoeffGroupFlag, 0, sizeof(UInt) * MLS_GRP_NUM );
1346
1347	do
1348	{
1349	posLast = scan[ ++scanPosLast ];
1350
1351	// get L1 sig map
1352	UInt uiPosY = posLast >> uiLog2BlockSize;
1353	UInt uiPosX = posLast - ( uiPosY << uiLog2BlockSize );
1354	UInt uiBlkIdx = uiNumBlkSide * (uiPosY >> uiShift) + (uiPosX >> uiShift);
1355	#if !REMOVAL_8x2_2x8_CG
1356	if( uiWidth == 8 && uiHeight == 8 && (uiScanIdx == SCAN_HOR \|\| uiScanIdx == SCAN_VER) )
1357	{
1358	if( uiScanIdx == SCAN_HOR )
1359	{
1360	uiBlkIdx = uiPosY >> 1;
1361	}
1362	else if( uiScanIdx == SCAN_VER )
1363	{
1364	uiBlkIdx = uiPosX >> 1;
1365	}
1366	}
1367	#endif
1368	if( pcCoef[ posLast ] )
1369	{
1370	uiSigCoeffGroupFlag[ uiBlkIdx ] = 1;
1371	}
1372
1373	uiNumSig -= ( pcCoef[ posLast ] != 0 );
1374	}
1375	while ( uiNumSig > 0 );
1376
1377	// Code position of last coefficient
1378	Int posLastY = posLast >> uiLog2BlockSize;
1379	Int posLastX = posLast - ( posLastY << uiLog2BlockSize );
1380	codeLastSignificantXY(posLastX, posLastY, uiWidth, uiHeight, eTType, uiScanIdx);
1381
1382	//===== code significance flag =====
1383	ContextModel * const baseCoeffGroupCtx = m_cCUSigCoeffGroupSCModel.get( 0, eTType );
1384	ContextModel * const baseCtx = (eTType==TEXT_LUMA) ? m_cCUSigSCModel.get( 0, 0 ) : m_cCUSigSCModel.get( 0, 0 ) + NUM_SIG_FLAG_CTX_LUMA;
1385
1386
1387	const Int iLastScanSet = scanPosLast >> LOG2_SCAN_SET_SIZE;
1388	#if REMOVE_NUM_GREATER1
1389	UInt c1 = 1;
1390	#else
1391	UInt uiNumOne = 0;
1392	#endif
1393	UInt uiGoRiceParam = 0;
1394	Int iScanPosSig = scanPosLast;
1395
1396	for( Int iSubSet = iLastScanSet; iSubSet >= 0; iSubSet-- )
1397	{
1398	Int numNonZero = 0;
1399	Int iSubPos = iSubSet << LOG2_SCAN_SET_SIZE;
1400	uiGoRiceParam = 0;
1401	Int absCoeff[16];
1402	UInt coeffSigns = 0;
1403
1404	Int lastNZPosInCG = -1, firstNZPosInCG = SCAN_SET_SIZE;
1405
1406	if( iScanPosSig == scanPosLast )
1407	{
1408	absCoeff[ 0 ] = abs( pcCoef[ posLast ] );
1409	coeffSigns = ( pcCoef[ posLast ] < 0 );
1410	numNonZero = 1;
1411	lastNZPosInCG = iScanPosSig;
1412	firstNZPosInCG = iScanPosSig;
1413	iScanPosSig--;
1414	}
1415
1416	// encode significant_coeffgroup_flag
1417	Int iCGBlkPos = scanCG[ iSubSet ];
1418	Int iCGPosY = iCGBlkPos / uiNumBlkSide;
1419	Int iCGPosX = iCGBlkPos - (iCGPosY * uiNumBlkSide);
1420	#if !REMOVAL_8x2_2x8_CG
1421	if( uiWidth == 8 && uiHeight == 8 && (uiScanIdx == SCAN_HOR \|\| uiScanIdx == SCAN_VER) )
1422	{
1423	iCGPosY = (uiScanIdx == SCAN_HOR ? iCGBlkPos : 0);
1424	iCGPosX = (uiScanIdx == SCAN_VER ? iCGBlkPos : 0);
1425	}
1426	#endif
1427	if( iSubSet == iLastScanSet \|\| iSubSet == 0)
1428	{
1429	uiSigCoeffGroupFlag[ iCGBlkPos ] = 1;
1430	}
1431	else
1432	{
1433	UInt uiSigCoeffGroup = (uiSigCoeffGroupFlag[ iCGBlkPos ] != 0);
1434	UInt uiCtxSig = TComTrQuant::getSigCoeffGroupCtxInc( uiSigCoeffGroupFlag, iCGPosX, iCGPosY, uiScanIdx, uiWidth, uiHeight );
1435	m_pcBinIf->encodeBin( uiSigCoeffGroup, baseCoeffGroupCtx[ uiCtxSig ] );
1436	}
1437
1438	// encode significant_coeff_flag
1439	if( uiSigCoeffGroupFlag[ iCGBlkPos ] )
1440	{
1441	Int patternSigCtx = TComTrQuant::calcPatternSigCtx( uiSigCoeffGroupFlag, iCGPosX, iCGPosY, uiWidth, uiHeight );
1442	UInt uiBlkPos, uiPosY, uiPosX, uiSig, uiCtxSig;
1443	for( ; iScanPosSig >= iSubPos; iScanPosSig-- )
1444	{
1445	uiBlkPos = scan[ iScanPosSig ];
1446	uiPosY = uiBlkPos >> uiLog2BlockSize;
1447	uiPosX = uiBlkPos - ( uiPosY << uiLog2BlockSize );
1448	uiSig = (pcCoef[ uiBlkPos ] != 0);
1449	if( iScanPosSig > iSubPos \|\| iSubSet == 0 \|\| numNonZero )
1450	{
1451	#if REMOVAL_8x2_2x8_CG
1452	uiCtxSig = TComTrQuant::getSigCtxInc( patternSigCtx, uiScanIdx, uiPosX, uiPosY, blockType, uiWidth, uiHeight, eTType );
1453	#else
1454	uiCtxSig = TComTrQuant::getSigCtxInc( patternSigCtx, uiPosX, uiPosY, blockType, uiWidth, uiHeight, eTType );
1455	#endif
1456	m_pcBinIf->encodeBin( uiSig, baseCtx[ uiCtxSig ] );
1457	}
1458	if( uiSig )
1459	{
1460	absCoeff[ numNonZero ] = abs( pcCoef[ uiBlkPos ] );
1461	coeffSigns = 2 * coeffSigns + ( pcCoef[ uiBlkPos ] < 0 );
1462	numNonZero++;
1463	if( lastNZPosInCG == -1 )
1464	{
1465	lastNZPosInCG = iScanPosSig;
1466	}
1467	firstNZPosInCG = iScanPosSig;
1468	}
1469	}
1470	}
1471	else
1472	{
1473	iScanPosSig = iSubPos - 1;
1474	}
1475
1476	if( numNonZero > 0 )
1477	{
1478	Bool signHidden = ( lastNZPosInCG - firstNZPosInCG >= SBH_THRESHOLD );
1479	#if !REMOVE_NUM_GREATER1
1480	UInt c1 = 1;
1481	#endif
1482	UInt uiCtxSet = (iSubSet > 0 && eTType==TEXT_LUMA) ? 2 : 0;
1483
1484	#if REMOVE_NUM_GREATER1
1485	if( c1 == 0 )
1486	#else
1487	if( uiNumOne > 0 )
1488	#endif
1489	{
1490	uiCtxSet++;
1491	}
1492	#if REMOVE_NUM_GREATER1
1493	c1 = 1;
1494	#else
1495	uiNumOne >>= 1;
1496	#endif
1497	ContextModel baseCtxMod = ( eTType==TEXT_LUMA ) ? m_cCUOneSCModel.get( 0, 0 ) + 4 uiCtxSet : m_cCUOneSCModel.get( 0, 0 ) + NUM_ONE_FLAG_CTX_LUMA + 4 * uiCtxSet;
1498
1499	Int numC1Flag = min(numNonZero, C1FLAG_NUMBER);
1500	Int firstC2FlagIdx = -1;
1501	for( Int idx = 0; idx < numC1Flag; idx++ )
1502	{
1503	UInt uiSymbol = absCoeff[ idx ] > 1;
1504	m_pcBinIf->encodeBin( uiSymbol, baseCtxMod[c1] );
1505	if( uiSymbol )
1506	{
1507	c1 = 0;
1508
1509	if (firstC2FlagIdx == -1)
1510	{
1511	firstC2FlagIdx = idx;
1512	}
1513	}
1514	else if( (c1 < 3) && (c1 > 0) )
1515	{
1516	c1++;
1517	}
1518	}
1519
1520	if (c1 == 0)
1521	{
1522
1523	baseCtxMod = ( eTType==TEXT_LUMA ) ? m_cCUAbsSCModel.get( 0, 0 ) + uiCtxSet : m_cCUAbsSCModel.get( 0, 0 ) + NUM_ABS_FLAG_CTX_LUMA + uiCtxSet;
1524	if ( firstC2FlagIdx != -1)
1525	{
1526	UInt symbol = absCoeff[ firstC2FlagIdx ] > 2;
1527	m_pcBinIf->encodeBin( symbol, baseCtxMod[0] );
1528	}
1529	}
1530
1531	if( beValid && signHidden )
1532	{
1533	m_pcBinIf->encodeBinsEP( (coeffSigns >> 1), numNonZero-1 );
1534	}
1535	else
1536	{
1537	m_pcBinIf->encodeBinsEP( coeffSigns, numNonZero );
1538	}
1539
1540	Int iFirstCoeff2 = 1;
1541	if (c1 == 0 \|\| numNonZero > C1FLAG_NUMBER)
1542	{
1543	for ( Int idx = 0; idx < numNonZero; idx++ )
1544	{
1545	UInt baseLevel = (idx < C1FLAG_NUMBER)? (2 + iFirstCoeff2 ) : 1;
1546
1547	if( absCoeff[ idx ] >= baseLevel)
1548	{
1549	xWriteCoefRemainExGolomb( absCoeff[ idx ] - baseLevel, uiGoRiceParam );
1550	if(absCoeff[idx] > 3*(1<<uiGoRiceParam))
1551	{
1552	uiGoRiceParam = min<UInt>(uiGoRiceParam+ 1, 4);
1553	}
1554	}
1555	if(absCoeff[ idx ] >= 2)
1556	{
1557	iFirstCoeff2 = 0;
1558	#if !REMOVE_NUM_GREATER1
1559	uiNumOne++;
1560	#endif
1561	}
1562	}
1563	}
1564	}
1565	#if !REMOVE_NUM_GREATER1
1566	else
1567	{
1568	uiNumOne >>= 1;
1569	}
1570	#endif
1571	}
1572
1573	return;
1574	}
1575
1576	#if !REMOVE_ALF
1577	Void TEncSbac::codeAlfCtrlFlag( Int compIdx, UInt code )
1578	{
1579	m_pcBinIf->encodeBin( code, m_cCUAlfCtrlFlagSCModel.get( 0, 0, 0) );
1580
1581	DTRACE_CABAC_VL( g_nSymbolCounter++ )
1582	DTRACE_CABAC_T( "codeAlfCtrlFlag()" )
1583	DTRACE_CABAC_T( "\tsymbol=" )
1584	DTRACE_CABAC_V( code )
1585	DTRACE_CABAC_T( "\tcompIdx=" )
1586	DTRACE_CABAC_V( compIdx )
1587	DTRACE_CABAC_T( "\n" )
1588	}
1589	#endif
1590
1591	/** code SAO offset sign
1592	* \param code sign value
1593	*/
1594	Void TEncSbac::codeSAOSign( UInt code )
1595	{
1596	m_pcBinIf->encodeBinEP( code );
1597	}
1598
1599	Void TEncSbac::codeSaoMaxUvlc ( UInt code, UInt maxSymbol )
1600	{
1601	if (maxSymbol == 0)
1602	{
1603	return;
1604	}
1605
1606	Int i;
1607	Bool bCodeLast = ( maxSymbol > code );
1608
1609	if ( code == 0 )
1610	{
1611	#if SAO_ABS_BY_PASS
1612	m_pcBinIf->encodeBinEP( 0 );
1613	#else
1614	m_pcBinIf->encodeBin( 0, m_cSaoUvlcSCModel.get( 0, 0, 0 ) );
1615	#endif
1616	}
1617	else
1618	{
1619	#if SAO_ABS_BY_PASS
1620	m_pcBinIf->encodeBinEP( 1 );
1621	#else
1622	m_pcBinIf->encodeBin( 1, m_cSaoUvlcSCModel.get( 0, 0, 0 ) );
1623	#endif
1624	for ( i=0; i<code-1; i++ )
1625	{
1626	#if SAO_ABS_BY_PASS
1627	m_pcBinIf->encodeBinEP( 1 );
1628	#else
1629	m_pcBinIf->encodeBin( 1, m_cSaoUvlcSCModel.get( 0, 0, 1 ) );
1630	#endif
1631	}
1632	if( bCodeLast )
1633	{
1634	#if SAO_ABS_BY_PASS
1635	m_pcBinIf->encodeBinEP( 0 );
1636	#else
1637	m_pcBinIf->encodeBin( 0, m_cSaoUvlcSCModel.get( 0, 0, 1 ) );
1638	#endif
1639	}
1640	}
1641	}
1642
1643
1644	#if SAO_TYPE_CODING
1645	/** Code SAO EO class or BO band position
1646	* \param uiLength
1647	* \param uiCode
1648	*/
1649	Void TEncSbac::codeSaoUflc ( UInt uiLength, UInt uiCode )
1650	{
1651	m_pcBinIf->encodeBinsEP ( uiCode, uiLength );
1652	}
1653	#else
1654	/** Code SAO band position
1655	* \param uiCode
1656	*/
1657	Void TEncSbac::codeSaoUflc ( UInt uiCode )
1658	{
1659	m_pcBinIf->encodeBinsEP ( uiCode, 5 );
1660	}
1661	#endif
1662	#if SAO_MERGE_ONE_CTX
1663	/** Code SAO merge flags
1664	* \param uiCode
1665	* \param uiCompIdx
1666	*/
1667	Void TEncSbac::codeSaoMerge ( UInt uiCode )
1668	#else
1669	/** Code SAO merge left flag
1670	* \param uiCode
1671	* \param uiCompIdx
1672	*/
1673	Void TEncSbac::codeSaoMergeLeft ( UInt uiCode, UInt uiCompIdx )
1674	#endif
1675	{
1676	if (uiCode == 0)
1677	{
1678	#if SAO_MERGE_ONE_CTX
1679	m_pcBinIf->encodeBin(0, m_cSaoMergeSCModel.get( 0, 0, 0 ));
1680	#else
1681	#if SAO_SINGLE_MERGE
1682	m_pcBinIf->encodeBin(0, m_cSaoMergeLeftSCModel.get( 0, 0, 0 ));
1683	#else
1684	m_pcBinIf->encodeBin(0, m_cSaoMergeLeftSCModel.get( 0, 0, uiCompIdx ));
1685	#endif
1686	#endif
1687	}
1688	else
1689	{
1690	#if SAO_MERGE_ONE_CTX
1691	m_pcBinIf->encodeBin(1, m_cSaoMergeSCModel.get( 0, 0, 0 ));
1692	#else
1693	#if SAO_SINGLE_MERGE
1694	m_pcBinIf->encodeBin(1, m_cSaoMergeLeftSCModel.get( 0, 0, 0 ));
1695	#else
1696	m_pcBinIf->encodeBin(1, m_cSaoMergeLeftSCModel.get( 0, 0, uiCompIdx ));
1697	#endif
1698	#endif
1699	}
1700	}
1701	#if !SAO_MERGE_ONE_CTX
1702	/** Code SAO merge up flag
1703	* \param uiCode
1704	*/
1705	Void TEncSbac::codeSaoMergeUp ( UInt uiCode)
1706	{
1707	if (uiCode == 0)
1708	{
1709	m_pcBinIf->encodeBin(0, m_cSaoMergeUpSCModel.get( 0, 0, 0 ));
1710	}
1711	else
1712	{
1713	m_pcBinIf->encodeBin(1, m_cSaoMergeUpSCModel.get( 0, 0, 0 ));
1714	}
1715	}
1716	#endif
1717	/** Code SAO type index
1718	* \param uiCode
1719	*/
1720	Void TEncSbac::codeSaoTypeIdx ( UInt uiCode)
1721	{
1722	#if SAO_TYPE_CODING
1723	if (uiCode == 0)
1724	{
1725	m_pcBinIf->encodeBin( 0, m_cSaoTypeIdxSCModel.get( 0, 0, 0 ) );
1726	}
1727	else
1728	{
1729	m_pcBinIf->encodeBin( 1, m_cSaoTypeIdxSCModel.get( 0, 0, 0 ) );
1730	m_pcBinIf->encodeBinEP( uiCode <= 4 ? 1 : 0 );
1731	}
1732	#else
1733	Int i;
1734	if ( uiCode == 0 )
1735	{
1736	m_pcBinIf->encodeBin( 0, m_cSaoTypeIdxSCModel.get( 0, 0, 0 ) );
1737	}
1738	else
1739	{
1740	m_pcBinIf->encodeBin( 1, m_cSaoTypeIdxSCModel.get( 0, 0, 0 ) );
1741	for ( i=0; i<uiCode-1; i++ )
1742	{
1743	m_pcBinIf->encodeBin( 1, m_cSaoTypeIdxSCModel.get( 0, 0, 1 ) );
1744	}
1745	m_pcBinIf->encodeBin( 0, m_cSaoTypeIdxSCModel.get( 0, 0, 1 ) );
1746	}
1747	#endif
1748	}
1749	/*!
1750	****************************************************************************
1751	* \brief
1752	* estimate bit cost for CBP, significant map and significant coefficients
1753	****************************************************************************
1754	*/
1755	Void TEncSbac::estBit( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType )
1756	{
1757	estCBFBit( pcEstBitsSbac, 0, eTType );
1758
1759	estSignificantCoeffGroupMapBit( pcEstBitsSbac, 0, eTType );
1760
1761	// encode significance map
1762	estSignificantMapBit( pcEstBitsSbac, width, height, eTType );
1763
1764	// encode significant coefficients
1765	estSignificantCoefficientsBit( pcEstBitsSbac, 0, eTType );
1766	}
1767
1768	/*!
1769	****************************************************************************
1770	* \brief
1771	* estimate bit cost for each CBP bit
1772	****************************************************************************
1773	*/
1774	Void TEncSbac::estCBFBit( estBitsSbacStruct* pcEstBitsSbac, UInt uiCTXIdx, TextType eTType )
1775	{
1776	ContextModel *pCtx = m_cCUQtCbfSCModel.get( 0 );
1777
1778	for( UInt uiCtxInc = 0; uiCtxInc < 3*NUM_QT_CBF_CTX; uiCtxInc++ )
1779	{
1780	pcEstBitsSbac->blockCbpBits[ uiCtxInc ][ 0 ] = pCtx[ uiCtxInc ].getEntropyBits( 0 );
1781	pcEstBitsSbac->blockCbpBits[ uiCtxInc ][ 1 ] = pCtx[ uiCtxInc ].getEntropyBits( 1 );
1782	}
1783
1784	pCtx = m_cCUQtRootCbfSCModel.get( 0 );
1785
1786	for( UInt uiCtxInc = 0; uiCtxInc < 4; uiCtxInc++ )
1787	{
1788	pcEstBitsSbac->blockRootCbpBits[ uiCtxInc ][ 0 ] = pCtx[ uiCtxInc ].getEntropyBits( 0 );
1789	pcEstBitsSbac->blockRootCbpBits[ uiCtxInc ][ 1 ] = pCtx[ uiCtxInc ].getEntropyBits( 1 );
1790	}
1791	}
1792
1793
1794	/*!
1795	****************************************************************************
1796	* \brief
1797	* estimate SAMBAC bit cost for significant coefficient group map
1798	****************************************************************************
1799	*/
1800	Void TEncSbac::estSignificantCoeffGroupMapBit( estBitsSbacStruct* pcEstBitsSbac, UInt uiCTXIdx, TextType eTType )
1801	{
1802	Int firstCtx = 0, numCtx = NUM_SIG_CG_FLAG_CTX;
1803
1804	for ( Int ctxIdx = firstCtx; ctxIdx < firstCtx + numCtx; ctxIdx++ )
1805	{
1806	for( UInt uiBin = 0; uiBin < 2; uiBin++ )
1807	{
1808	pcEstBitsSbac->significantCoeffGroupBits[ ctxIdx ][ uiBin ] = m_cCUSigCoeffGroupSCModel.get( 0, eTType, ctxIdx ).getEntropyBits( uiBin );
1809	}
1810	}
1811	}
1812
1813
1814	/*!
1815	****************************************************************************
1816	* \brief
1817	* estimate SAMBAC bit cost for significant coefficient map
1818	****************************************************************************
1819	*/
1820	Void TEncSbac::estSignificantMapBit( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType )
1821	{
1822	Int firstCtx = 1, numCtx = 8;
1823	if (max(width, height) >= 16)
1824	{
1825	#if REMOVAL_8x2_2x8_CG
1826	firstCtx = (eTType == TEXT_LUMA) ? 21 : 12;
1827	#else
1828	firstCtx = 18;
1829	#endif
1830	numCtx = (eTType == TEXT_LUMA) ? 6 : 3;
1831	}
1832	else if (width == 8)
1833	{
1834	firstCtx = 9;
1835	#if REMOVAL_8x2_2x8_CG
1836	numCtx = (eTType == TEXT_LUMA) ? 12 : 3;
1837	#else
1838	numCtx = 9;
1839	#endif
1840	}
1841
1842	if (eTType == TEXT_LUMA )
1843	{
1844	for( UInt bin = 0; bin < 2; bin++ )
1845	{
1846	pcEstBitsSbac->significantBits[ 0 ][ bin ] = m_cCUSigSCModel.get( 0, 0, 0 ).getEntropyBits( bin );
1847	}
1848
1849	for ( Int ctxIdx = firstCtx; ctxIdx < firstCtx + numCtx; ctxIdx++ )
1850	{
1851	for( UInt uiBin = 0; uiBin < 2; uiBin++ )
1852	{
1853	pcEstBitsSbac->significantBits[ ctxIdx ][ uiBin ] = m_cCUSigSCModel.get( 0, 0, ctxIdx ).getEntropyBits( uiBin );
1854	}
1855	}
1856	}
1857	else
1858	{
1859	for( UInt bin = 0; bin < 2; bin++ )
1860	{
1861	pcEstBitsSbac->significantBits[ 0 ][ bin ] = m_cCUSigSCModel.get( 0, 0, NUM_SIG_FLAG_CTX_LUMA + 0 ).getEntropyBits( bin );
1862	}
1863	for ( Int ctxIdx = firstCtx; ctxIdx < firstCtx + numCtx; ctxIdx++ )
1864	{
1865	for( UInt uiBin = 0; uiBin < 2; uiBin++ )
1866	{
1867	pcEstBitsSbac->significantBits[ ctxIdx ][ uiBin ] = m_cCUSigSCModel.get( 0, 0, NUM_SIG_FLAG_CTX_LUMA + ctxIdx ).getEntropyBits( uiBin );
1868	}
1869	}
1870	}
1871	Int iBitsX = 0, iBitsY = 0;
1872	Int blkSizeOffsetX, blkSizeOffsetY, shiftX, shiftY;
1873
1874	blkSizeOffsetX = eTType ? 0: (g_aucConvertToBit[ width ] *3 + ((g_aucConvertToBit[ width ] +1)>>2));
1875	blkSizeOffsetY = eTType ? 0: (g_aucConvertToBit[ height ]*3 + ((g_aucConvertToBit[ height ]+1)>>2));
1876	shiftX = eTType ? g_aucConvertToBit[ width ] :((g_aucConvertToBit[ width ]+3)>>2);
1877	shiftY = eTType ? g_aucConvertToBit[ height ] :((g_aucConvertToBit[ height ]+3)>>2);
1878
1879	Int ctx;
1880	ContextModel *pCtxX = m_cCuCtxLastX.get( 0, eTType );
1881	for (ctx = 0; ctx < g_uiGroupIdx[ width - 1 ]; ctx++)
1882	{
1883	Int ctxOffset = blkSizeOffsetX + (ctx >>shiftX);
1884	pcEstBitsSbac->lastXBits[ ctx ] = iBitsX + pCtxX[ ctxOffset ].getEntropyBits( 0 );
1885	iBitsX += pCtxX[ ctxOffset ].getEntropyBits( 1 );
1886	}
1887	pcEstBitsSbac->lastXBits[ctx] = iBitsX;
1888	ContextModel *pCtxY = m_cCuCtxLastY.get( 0, eTType );
1889	for (ctx = 0; ctx < g_uiGroupIdx[ height - 1 ]; ctx++)
1890	{
1891	Int ctxOffset = blkSizeOffsetY + (ctx >>shiftY);
1892	pcEstBitsSbac->lastYBits[ ctx ] = iBitsY + pCtxY[ ctxOffset ].getEntropyBits( 0 );
1893	iBitsY += pCtxY[ ctxOffset ].getEntropyBits( 1 );
1894	}
1895	pcEstBitsSbac->lastYBits[ctx] = iBitsY;
1896	}
1897
1898	/*!
1899	****************************************************************************
1900	* \brief
1901	* estimate bit cost of significant coefficient
1902	****************************************************************************
1903	*/
1904	Void TEncSbac::estSignificantCoefficientsBit( estBitsSbacStruct* pcEstBitsSbac, UInt uiCTXIdx, TextType eTType )
1905	{
1906	if (eTType==TEXT_LUMA)
1907	{
1908	ContextModel *ctxOne = m_cCUOneSCModel.get(0, 0);
1909	ContextModel *ctxAbs = m_cCUAbsSCModel.get(0, 0);
1910
1911	for (Int ctxIdx = 0; ctxIdx < NUM_ONE_FLAG_CTX_LUMA; ctxIdx++)
1912	{
1913	pcEstBitsSbac->m_greaterOneBits[ ctxIdx ][ 0 ] = ctxOne[ ctxIdx ].getEntropyBits( 0 );
1914	pcEstBitsSbac->m_greaterOneBits[ ctxIdx ][ 1 ] = ctxOne[ ctxIdx ].getEntropyBits( 1 );
1915	}
1916
1917	for (Int ctxIdx = 0; ctxIdx < NUM_ABS_FLAG_CTX_LUMA; ctxIdx++)
1918	{
1919	pcEstBitsSbac->m_levelAbsBits[ ctxIdx ][ 0 ] = ctxAbs[ ctxIdx ].getEntropyBits( 0 );
1920	pcEstBitsSbac->m_levelAbsBits[ ctxIdx ][ 1 ] = ctxAbs[ ctxIdx ].getEntropyBits( 1 );
1921	}
1922	}
1923	else
1924	{
1925	ContextModel *ctxOne = m_cCUOneSCModel.get(0, 0) + NUM_ONE_FLAG_CTX_LUMA;
1926	ContextModel *ctxAbs = m_cCUAbsSCModel.get(0, 0) + NUM_ABS_FLAG_CTX_LUMA;
1927
1928	for (Int ctxIdx = 0; ctxIdx < NUM_ONE_FLAG_CTX_CHROMA; ctxIdx++)
1929	{
1930	pcEstBitsSbac->m_greaterOneBits[ ctxIdx ][ 0 ] = ctxOne[ ctxIdx ].getEntropyBits( 0 );
1931	pcEstBitsSbac->m_greaterOneBits[ ctxIdx ][ 1 ] = ctxOne[ ctxIdx ].getEntropyBits( 1 );
1932	}
1933
1934	for (Int ctxIdx = 0; ctxIdx < NUM_ABS_FLAG_CTX_CHROMA; ctxIdx++)
1935	{
1936	pcEstBitsSbac->m_levelAbsBits[ ctxIdx ][ 0 ] = ctxAbs[ ctxIdx ].getEntropyBits( 0 );
1937	pcEstBitsSbac->m_levelAbsBits[ ctxIdx ][ 1 ] = ctxAbs[ ctxIdx ].getEntropyBits( 1 );
1938	}
1939	}
1940	}
1941
1942	/**
1943	- Initialize our context information from the nominated source.
1944	.
1945	\param pSrc From where to copy context information.
1946	*/
1947	Void TEncSbac::xCopyContextsFrom( TEncSbac* pSrc )
1948	{
1949	memcpy(m_contextModels, pSrc->m_contextModels, m_numContextModels*sizeof(m_contextModels[0]));
1950	}
1951
1952	Void TEncSbac::loadContexts ( TEncSbac* pScr)
1953	{
1954	this->xCopyContextsFrom(pScr);
1955	}
1956	//! \}

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