source: SHVCSoftware/branches/SHM-5.1-dev/source/Lib/TLibCommon/TComPic.cpp @ 640

Last change on this file since 640 was 595, checked in by seregin, 11 years ago

merge with SHM-5.0-dev branch
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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.
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     TComPic.cpp
35    \brief    picture class
36*/
37
38#include "TComPic.h"
39#include "SEI.h"
40
41//! \ingroup TLibCommon
42//! \{
43
44// ====================================================================================================================
45// Constructor / destructor / create / destroy
46// ====================================================================================================================
47
48TComPic::TComPic()
49: m_uiTLayer                              (0)
50, m_bUsedByCurr                           (false)
51, m_bIsLongTerm                           (false)
52, m_apcPicSym                             (NULL)
53, m_pcPicYuvPred                          (NULL)
54, m_pcPicYuvResi                          (NULL)
55, m_bReconstructed                        (false)
56, m_bNeededForOutput                      (false)
57, m_uiCurrSliceIdx                        (0)
58, m_bCheckLTMSB                           (false)
59#if SVC_EXTENSION
60, m_layerId( 0 )
61#endif
62{
63#if SVC_EXTENSION
64  memset( m_pcFullPelBaseRec, 0, sizeof( m_pcFullPelBaseRec ) );
65  memset( m_bSpatialEnhLayer, false, sizeof( m_bSpatialEnhLayer ) );
66#endif
67  m_apcPicYuv[0]      = NULL;
68  m_apcPicYuv[1]      = NULL;
69}
70
71TComPic::~TComPic()
72{
73}
74#if SVC_UPSAMPLING
75#if AUXILIARY_PICTURES
76Void TComPic::create( Int iWidth, Int iHeight, ChromaFormat chromaFormatIDC, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth, Window &conformanceWindow, Window &defaultDisplayWindow,
77                      Int *numReorderPics, TComSPS* pcSps, Bool bIsVirtual)
78#else
79Void TComPic::create( Int iWidth, Int iHeight, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth, Window &conformanceWindow, Window &defaultDisplayWindow,
80                      Int *numReorderPics, TComSPS* pcSps, Bool bIsVirtual)
81#endif
82{
83  m_apcPicSym     = new TComPicSym;  m_apcPicSym   ->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
84  if (!bIsVirtual)
85  {
86#if AUXILIARY_PICTURES
87    m_apcPicYuv[0]  = new TComPicYuv;  m_apcPicYuv[0]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth, pcSps );
88#else
89    m_apcPicYuv[0]  = new TComPicYuv;  m_apcPicYuv[0]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth, pcSps );
90#endif
91  }
92#if AUXILIARY_PICTURES
93  m_apcPicYuv[1]  = new TComPicYuv;  m_apcPicYuv[1]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth, pcSps );
94#else
95  m_apcPicYuv[1]  = new TComPicYuv;  m_apcPicYuv[1]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth, pcSps );
96#endif
97
98  for( Int i = 0; i < MAX_LAYERS; i++ )
99  {
100    if( m_bSpatialEnhLayer[i] )
101    {
102#if AUXILIARY_PICTURES
103      m_pcFullPelBaseRec[i] = new TComPicYuv;  m_pcFullPelBaseRec[i]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth, pcSps );
104#else
105      m_pcFullPelBaseRec[i] = new TComPicYuv;  m_pcFullPelBaseRec[i]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth, pcSps );
106#endif
107    }
108  }
109
110  m_layerId = pcSps ? pcSps->getLayerId() : 0;
111
112  // there are no SEI messages associated with this picture initially
113  if (m_SEIs.size() > 0)
114  {
115    deleteSEIs (m_SEIs);
116  }
117  m_bUsedByCurr = false;
118
119  /* store conformance window parameters with picture */
120  m_conformanceWindow = conformanceWindow;
121 
122  /* store display window parameters with picture */
123  m_defaultDisplayWindow = defaultDisplayWindow;
124
125  /* store number of reorder pics with picture */
126  memcpy(m_numReorderPics, numReorderPics, MAX_TLAYER*sizeof(Int));
127
128  return;
129}
130#else
131Void TComPic::create( Int iWidth, Int iHeight, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth, Window &conformanceWindow, Window &defaultDisplayWindow,
132                      Int *numReorderPics, Bool bIsVirtual)
133
134{
135  m_apcPicSym     = new TComPicSym;  m_apcPicSym   ->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
136  if (!bIsVirtual)
137  {
138    m_apcPicYuv[0]  = new TComPicYuv;  m_apcPicYuv[0]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
139  }
140  m_apcPicYuv[1]  = new TComPicYuv;  m_apcPicYuv[1]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
141 
142  // there are no SEI messages associated with this picture initially
143  if (m_SEIs.size() > 0)
144  {
145    deleteSEIs (m_SEIs);
146  }
147  m_bUsedByCurr = false;
148
149  /* store conformance window parameters with picture */
150  m_conformanceWindow = conformanceWindow;
151 
152  /* store display window parameters with picture */
153  m_defaultDisplayWindow = defaultDisplayWindow;
154
155  /* store number of reorder pics with picture */
156  memcpy(m_numReorderPics, numReorderPics, MAX_TLAYER*sizeof(Int));
157
158  return;
159}
160#endif
161
162Void TComPic::destroy()
163{
164  if (m_apcPicSym)
165  {
166    m_apcPicSym->destroy();
167    delete m_apcPicSym;
168    m_apcPicSym = NULL;
169  }
170 
171  if (m_apcPicYuv[0])
172  {
173    m_apcPicYuv[0]->destroy();
174    delete m_apcPicYuv[0];
175    m_apcPicYuv[0]  = NULL;
176  }
177 
178  if (m_apcPicYuv[1])
179  {
180    m_apcPicYuv[1]->destroy();
181    delete m_apcPicYuv[1];
182    m_apcPicYuv[1]  = NULL;
183  }
184 
185  deleteSEIs(m_SEIs);
186#if SVC_EXTENSION && SVC_UPSAMPLING
187  for( Int i = 0; i < MAX_LAYERS; i++ )
188  {
189    if( m_bSpatialEnhLayer[i] )
190    {
191      m_pcFullPelBaseRec[i]->destroy();
192      delete m_pcFullPelBaseRec[i];
193      m_pcFullPelBaseRec[i]  = NULL;
194    }
195  }
196#endif
197}
198
199Void TComPic::compressMotion()
200{
201  TComPicSym* pPicSym = getPicSym(); 
202  for ( UInt uiCUAddr = 0; uiCUAddr < pPicSym->getFrameHeightInCU()*pPicSym->getFrameWidthInCU(); uiCUAddr++ )
203  {
204    TComDataCU* pcCU = pPicSym->getCU(uiCUAddr);
205    pcCU->compressMV(); 
206  } 
207}
208
209Bool  TComPic::getSAOMergeAvailability(Int currAddr, Int mergeAddr)
210{
211  Bool mergeCtbInSliceSeg = (mergeAddr >= getPicSym()->getCUOrderMap(getCU(currAddr)->getSlice()->getSliceCurStartCUAddr()/getNumPartInCU()));
212  Bool mergeCtbInTile     = (getPicSym()->getTileIdxMap(mergeAddr) == getPicSym()->getTileIdxMap(currAddr));
213  return (mergeCtbInSliceSeg && mergeCtbInTile);
214}
215
216#if SVC_EXTENSION
217Void copyOnetoOnePicture(    // SVC_NONCOLL
218                  Pel *in,       
219                  Pel *out,     
220                  Int nCols,
221                  Int nRows, 
222                  Int fullRowWidth)
223{
224  Int rX;
225
226  for (rX = 0; rX < nRows; rX++)       
227  {
228    memcpy( out, in, sizeof(Pel) * nCols );
229    in = in + fullRowWidth;
230    out = out + fullRowWidth;
231  }
232}
233
234Void TComPic::copyUpsampledPictureYuv(TComPicYuv*   pcPicYuvIn, TComPicYuv*   pcPicYuvOut)
235{
236  Int upsampledRowWidthLuma = pcPicYuvOut->getStride(); // 2 * pcPicYuvOut->getLumaMargin() + pcPicYuvOut->getWidth();
237  Int upsampledRowWidthCroma = pcPicYuvOut->getCStride(); //2 * pcPicYuvOut->getChromaMargin() + (pcPicYuvOut->getWidth()>>1);
238
239  copyOnetoOnePicture(
240    pcPicYuvIn->getLumaAddr(),       
241    pcPicYuvOut->getLumaAddr(),     
242    pcPicYuvOut->getWidth(), 
243    pcPicYuvOut->getHeight(),
244    upsampledRowWidthLuma);
245  copyOnetoOnePicture(
246    pcPicYuvIn->getCrAddr(),       
247    pcPicYuvOut->getCrAddr(),     
248    pcPicYuvOut->getWidth()>>1, 
249    pcPicYuvOut->getHeight()>>1,
250    upsampledRowWidthCroma);
251  copyOnetoOnePicture(
252    pcPicYuvIn->getCbAddr(),       
253    pcPicYuvOut->getCbAddr(),     
254    pcPicYuvOut->getWidth()>>1, 
255    pcPicYuvOut->getHeight()>>1,
256    upsampledRowWidthCroma);
257}
258
259#if REF_IDX_MFM
260Void TComPic::copyUpsampledMvField(UInt refLayerIdc, TComPic* pcPicBase)
261{
262  UInt numPartitions   = 1<<(g_uiMaxCUDepth<<1);
263  UInt widthMinPU      = g_uiMaxCUWidth/(1<<g_uiMaxCUDepth);
264  UInt heightMinPU     = g_uiMaxCUHeight/(1<<g_uiMaxCUDepth);
265  Int  unitNum         = max (1, (Int)((16/widthMinPU)*(16/heightMinPU)) ); 
266
267  for(UInt cuIdx = 0; cuIdx < getPicSym()->getNumberOfCUsInFrame(); cuIdx++)  //each LCU
268  {
269    TComDataCU* pcCUDes = getCU(cuIdx);
270
271    for(UInt absPartIdx = 0; absPartIdx < numPartitions; absPartIdx+=unitNum )  //each 16x16 unit
272    {
273      //pixel position of each unit in up-sampled layer
274      UInt  pelX = pcCUDes->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[absPartIdx] ];
275      UInt  pelY = pcCUDes->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[absPartIdx] ];
276      UInt baseCUAddr, baseAbsPartIdx;
277
278      TComDataCU *pcColCU = 0;
279      pcColCU = pcCUDes->getBaseColCU(refLayerIdc, pelX + 8, pelY + 8, baseCUAddr, baseAbsPartIdx, 1);
280
281      if( pcColCU && (pcColCU->getPredictionMode(baseAbsPartIdx) != MODE_NONE) && (pcColCU->getPredictionMode(baseAbsPartIdx) != MODE_INTRA) )  //base layer unit not skip and invalid mode
282      {
283        for(UInt refPicList = 0; refPicList < 2; refPicList++)  //for each reference list
284        {
285          TComMvField sMvFieldBase, sMvField;
286          pcColCU->getMvField( pcColCU, baseAbsPartIdx, (RefPicList)refPicList, sMvFieldBase);
287          pcCUDes->scaleBaseMV( refLayerIdc, sMvField, sMvFieldBase );
288
289          pcCUDes->getCUMvField((RefPicList)refPicList)->setMvField(sMvField, absPartIdx);
290          pcCUDes->setPredictionMode(absPartIdx, MODE_INTER);
291        }
292      }
293      else
294      {
295        TComMvField zeroMvField;  //zero MV and invalid reference index
296        pcCUDes->getCUMvField(REF_PIC_LIST_0)->setMvField(zeroMvField, absPartIdx);
297        pcCUDes->getCUMvField(REF_PIC_LIST_1)->setMvField(zeroMvField, absPartIdx);
298        pcCUDes->setPredictionMode(absPartIdx, MODE_INTRA);
299      }
300
301      for(UInt i = 1; i < unitNum; i++ ) 
302      {
303        pcCUDes->getCUMvField(REF_PIC_LIST_0)->setMvField(pcCUDes->getCUMvField(REF_PIC_LIST_0)->getMv(absPartIdx), pcCUDes->getCUMvField(REF_PIC_LIST_0)->getRefIdx(absPartIdx), absPartIdx + i);
304        pcCUDes->getCUMvField(REF_PIC_LIST_1)->setMvField(pcCUDes->getCUMvField(REF_PIC_LIST_1)->getMv(absPartIdx), pcCUDes->getCUMvField(REF_PIC_LIST_1)->getRefIdx(absPartIdx), absPartIdx + i);
305        pcCUDes->setPredictionMode(absPartIdx+i, pcCUDes->getPredictionMode(absPartIdx));
306      }
307    }
308    memset( pcCUDes->getPartitionSize(), SIZE_2Nx2N, sizeof(Char)*numPartitions);
309  }
310}
311
312Void TComPic::initUpsampledMvField()
313{
314  UInt uiNumPartitions   = 1<<(g_uiMaxCUDepth<<1);
315
316  for(UInt cuIdx = 0; cuIdx < getPicSym()->getNumberOfCUsInFrame(); cuIdx++)  //each LCU
317  {
318    TComDataCU* pcCUDes = getCU(cuIdx);
319    TComMvField zeroMvField;
320    for(UInt list = 0; list < 2; list++)  //each reference list
321    {
322      for(UInt i = 0; i < uiNumPartitions; i++ ) 
323      {
324        pcCUDes->getCUMvField(REF_PIC_LIST_0)->setMvField(zeroMvField, i);
325        pcCUDes->getCUMvField(REF_PIC_LIST_1)->setMvField(zeroMvField, i);
326        pcCUDes->setPredictionMode(i, MODE_INTRA);
327        pcCUDes->setPartitionSize(i, SIZE_2Nx2N);
328      }
329    }
330  }
331  return;
332}
333#endif
334#endif
335
336#if AVC_SYNTAX
337Void TComPic::readBLSyntax( fstream* filestream, UInt numBytes )
338{
339  if( !filestream->good() )
340  {
341    return;
342  }
343
344  UInt   width      = this->getPicYuvRec()->getWidth();
345  UInt   height     = this->getPicYuvRec()->getHeight();
346
347  UInt64 poc        = (UInt64)this->getPOC();
348  UInt   partWidth  = width / 4;
349  UInt   partHeight = height / 4;
350
351  UInt numPartInWidth    = this->getNumPartInWidth();
352  UInt numPartInHeight   = this->getNumPartInHeight();
353  UInt numPartLCUInWidth = this->getFrameWidthInCU();
354
355  UInt64 uiPos = (UInt64)poc * width * height * numBytes / 16;
356   
357  filestream->seekg( uiPos, ios_base::beg );
358
359  for( Int i = 0; i < partHeight; i++ )
360  {
361    for( Int j = 0; j < partWidth; j++ )
362    {
363      UInt x = ( j / numPartInWidth );
364      UInt y = ( i / numPartInHeight );
365
366      UInt addrLCU = y * numPartLCUInWidth + x;
367      UInt partAddr = ( i - y * numPartInHeight ) * numPartInWidth + ( j - x * numPartInWidth );
368      partAddr = g_auiRasterToZscan[partAddr];
369     
370      TComDataCU* pcCU = this->getCU( addrLCU );
371     
372      TComMv mv;
373      Short temp;
374
375      // RefIdxL0
376      Char refIdxL0 = -1;
377      filestream->read( &refIdxL0, 1 );
378      assert( refIdxL0 >= -1 );
379      pcCU->getCUMvField( REF_PIC_LIST_0 )->setRefIdx( (Int)refIdxL0, partAddr );
380
381      // RefIdxL1
382      Char refIdxL1 = -1;
383      filestream->read( &refIdxL1, 1 );
384      assert( refIdxL1 >= -1 );
385      pcCU->getCUMvField( REF_PIC_LIST_1 )->setRefIdx( (Int)refIdxL1, partAddr );
386
387      // MV L0
388      temp = 0;
389      filestream->read( reinterpret_cast<char*>(&temp), 2 );
390      mv.setHor( (Short)temp );
391      temp = 0;
392      filestream->read( reinterpret_cast<char*>(&temp), 2 );
393      mv.setVer( (Short)temp );
394      pcCU->getCUMvField( REF_PIC_LIST_0 )->setMv( mv, partAddr );
395
396      // MV L1
397      temp = 0;
398      filestream->read( reinterpret_cast<char*>(&temp), 2 );
399      mv.setHor( (Short)temp );
400      temp = 0;
401      filestream->read( reinterpret_cast<char*>(&temp), 2 );
402      mv.setVer( (Short)temp );
403      pcCU->getCUMvField( REF_PIC_LIST_1 )->setMv( mv, partAddr );
404
405      // set dependent information
406      pcCU->setPredictionMode( partAddr, ( refIdxL0 == NOT_VALID && refIdxL1 == NOT_VALID ) ? MODE_INTRA : MODE_INTER );
407      UInt interDir = ( refIdxL0 != NOT_VALID ) + ( refIdxL1 != NOT_VALID && this->getSlice(0)->isInterB() ) * 2;
408      assert( interDir <= 3 );
409      pcCU->setInterDir( partAddr, interDir );     
410    }
411  }
412}
413#endif
414
415#if SYNTAX_OUTPUT
416Void TComPic::wrireBLSyntax( fstream* filestream, UInt numBytes )
417{
418  if( !filestream->good() )
419  {
420    return;
421  }
422
423  UInt   width       = this->getPicYuvRec()->getWidth();
424  UInt   height      = this->getPicYuvRec()->getHeight();
425
426  UInt64 poc        = (UInt64)this->getPOC();
427  UInt   partWidth  = width / 4;
428  UInt   partHeight = height / 4;
429
430  UInt numPartInWidth    = this->getNumPartInWidth();
431  UInt numPartInHeight   = this->getNumPartInHeight();
432  UInt numPartLCUInWidth = this->getFrameWidthInCU();
433
434  filestream->seekg( poc * width * height * numBytes / 16 );
435   
436  for( Int i = 0; i < partHeight; i++ )
437  {
438    for( Int j = 0; j < partWidth; j++ )
439    {
440      UInt x = ( j / numPartInWidth );
441      UInt y = ( i / numPartInHeight );
442
443      UInt addrLCU = y * numPartLCUInWidth + x;
444      UInt partAddr = ( i - y * numPartInHeight ) * numPartInWidth + ( j - x * numPartInWidth );
445      partAddr = g_auiRasterToZscan[partAddr];
446     
447      TComDataCU* pcCU = this->getCU( addrLCU );
448     
449      TComMv mv;
450      Short temp;
451      Char refIdxL0 = NOT_VALID, refIdxL1 = NOT_VALID;
452
453      // RefIdx
454      if( !pcCU->isIntra( partAddr ) )
455      {
456        refIdxL0 = (Char)pcCU->getCUMvField( REF_PIC_LIST_0 )->getRefIdx( partAddr );
457        refIdxL1 = (Char)pcCU->getCUMvField( REF_PIC_LIST_1 )->getRefIdx( partAddr );
458      }
459      assert( refIdxL0 >= - 1 && refIdxL1 >= - 1 );
460      filestream->put( refIdxL0 );
461      filestream->put( refIdxL1 );
462
463      // MV L0
464      mv.setZero();
465      if( refIdxL0 >= 0 )
466      {
467        mv = pcCU->getCUMvField( REF_PIC_LIST_0 )->getMv( partAddr );
468      }
469      temp = (Short)mv.getHor();
470      filestream->write( reinterpret_cast<char*>(&temp), 2 );
471      temp = (Short)mv.getVer();
472      filestream->write( reinterpret_cast<char*>(&temp), 2 );
473
474      // MV L1
475      mv.setZero();
476      if( refIdxL1 >= 0 )
477      {
478        mv = pcCU->getCUMvField( REF_PIC_LIST_1 )->getMv( partAddr );
479      }
480      temp = (Short)mv.getHor();
481      filestream->write( reinterpret_cast<char*>(&temp), 2 );
482      temp = (Short)mv.getVer();
483      filestream->write( reinterpret_cast<char*>(&temp), 2 );
484    }
485  }
486}
487#endif
488
489#if MFM_ENCCONSTRAINT
490Bool TComPic::checkSameRefInfo()
491{
492  Bool bSameRefInfo = true;
493  TComSlice * pSlice0 = getSlice( 0 );
494  for( UInt uSliceID = getNumAllocatedSlice() - 1 ; bSameRefInfo && uSliceID > 0 ; uSliceID-- )
495  {
496    TComSlice * pSliceN = getSlice( uSliceID );
497    if( pSlice0->getSliceType() != pSliceN->getSliceType() )
498    {
499      bSameRefInfo = false;
500    }
501    else if( pSlice0->getSliceType() != I_SLICE )
502    {
503      Int nListNum = pSlice0->getSliceType() == B_SLICE ? 2 : 1;
504      for( Int nList = 0 ; nList < nListNum ; nList++ )
505      {
506        RefPicList eRefList = ( RefPicList )nList;
507        if( pSlice0->getNumRefIdx( eRefList ) == pSliceN->getNumRefIdx( eRefList ) )
508        {
509          for( Int refIdx = pSlice0->getNumRefIdx( eRefList ) - 1 ; refIdx >= 0 ; refIdx-- )
510          {
511            if( pSlice0->getRefPic( eRefList , refIdx ) != pSliceN->getRefPic( eRefList , refIdx ) )
512            {
513              bSameRefInfo = false;
514              break;
515            }
516          }
517        }
518        else
519        {
520          bSameRefInfo = false;
521          break;
522        }
523      }
524    }
525  }
526
527  return( bSameRefInfo ); 
528}
529#endif
530
531//! \}
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