source: 3DVCSoftware/branches/HTM-DEV-2.0-Renderer-Fix/source/Lib/TLibCommon/TComPic.cpp @ 1405

Last change on this file since 1405 was 539, checked in by orange, 11 years ago

Integrated QTLPC and added new line mark at the end of TComWedgelet.cpp for MERL
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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) 2010-2013, 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_bIsUsedAsLongTerm                     (false)
53, m_apcPicSym                             (NULL)
54, m_pcPicYuvPred                          (NULL)
55, m_pcPicYuvResi                          (NULL)
56, m_bReconstructed                        (false)
57, m_bNeededForOutput                      (false)
58, m_uiCurrSliceIdx                        (0)
59, m_pSliceSUMap                           (NULL)
60, m_pbValidSlice                          (NULL)
61, m_sliceGranularityForNDBFilter          (0)
62, m_bIndependentSliceBoundaryForNDBFilter (false)
63, m_bIndependentTileBoundaryForNDBFilter  (false)
64, m_pNDBFilterYuvTmp                      (NULL)
65, m_bCheckLTMSB                           (false)
66#if H_MV
67, m_layerId                               (0)
68, m_viewId                                (0)
69#if H_3D
70, m_viewIndex                             (0)
71, m_isDepth                               (false)
72, m_aaiCodedScale                         (0)
73, m_aaiCodedOffset                        (0)
74#endif
75#endif
76{
77  m_apcPicYuv[0]      = NULL;
78  m_apcPicYuv[1]      = NULL;
79#if H_3D_QTLPC
80  m_bReduceBitsQTL    = 0;
81#endif
82#if H_3D_NBDV
83  m_iNumDdvCandPics   = 0;
84  m_eRapRefList       = REF_PIC_LIST_0;
85  m_uiRapRefIdx       = 0;
86#endif
87}
88
89TComPic::~TComPic()
90{
91}
92
93Void TComPic::create( Int iWidth, Int iHeight, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth, Window &conformanceWindow, Window &defaultDisplayWindow,
94                      Int *numReorderPics, Bool bIsVirtual)
95
96{
97  m_apcPicSym     = new TComPicSym;  m_apcPicSym   ->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
98  if (!bIsVirtual)
99  {
100    m_apcPicYuv[0]  = new TComPicYuv;  m_apcPicYuv[0]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
101  }
102  m_apcPicYuv[1]  = new TComPicYuv;  m_apcPicYuv[1]->create( iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
103 
104  // there are no SEI messages associated with this picture initially
105  if (m_SEIs.size() > 0)
106  {
107    deleteSEIs (m_SEIs);
108  }
109  m_bUsedByCurr = false;
110
111  /* store conformance window parameters with picture */
112  m_conformanceWindow = conformanceWindow;
113 
114  /* store display window parameters with picture */
115  m_defaultDisplayWindow = defaultDisplayWindow;
116
117  /* store number of reorder pics with picture */
118  memcpy(m_numReorderPics, numReorderPics, MAX_TLAYER*sizeof(Int));
119
120  return;
121}
122
123Void TComPic::destroy()
124{
125  if (m_apcPicSym)
126  {
127    m_apcPicSym->destroy();
128    delete m_apcPicSym;
129    m_apcPicSym = NULL;
130  }
131 
132  if (m_apcPicYuv[0])
133  {
134    m_apcPicYuv[0]->destroy();
135    delete m_apcPicYuv[0];
136    m_apcPicYuv[0]  = NULL;
137  }
138 
139  if (m_apcPicYuv[1])
140  {
141    m_apcPicYuv[1]->destroy();
142    delete m_apcPicYuv[1];
143    m_apcPicYuv[1]  = NULL;
144  }
145 
146  deleteSEIs(m_SEIs);
147}
148
149Void TComPic::compressMotion()
150{
151  TComPicSym* pPicSym = getPicSym(); 
152  for ( UInt uiCUAddr = 0; uiCUAddr < pPicSym->getFrameHeightInCU()*pPicSym->getFrameWidthInCU(); uiCUAddr++ )
153  {
154    TComDataCU* pcCU = pPicSym->getCU(uiCUAddr);
155    pcCU->compressMV(); 
156  } 
157}
158
159/** Create non-deblocked filter information
160 * \param pSliceStartAddress array for storing slice start addresses
161 * \param numSlices number of slices in picture
162 * \param sliceGranularityDepth slice granularity
163 * \param bNDBFilterCrossSliceBoundary cross-slice-boundary in-loop filtering; true for "cross".
164 * \param numTiles number of tiles in picture
165 * \param bNDBFilterCrossTileBoundary cross-tile-boundary in-loop filtering; true for "cross".
166 */
167Void TComPic::createNonDBFilterInfo(std::vector<Int> sliceStartAddress, Int sliceGranularityDepth
168                                    ,std::vector<Bool>* LFCrossSliceBoundary
169                                    ,Int numTiles
170                                    ,Bool bNDBFilterCrossTileBoundary)
171{
172  UInt maxNumSUInLCU = getNumPartInCU();
173  UInt numLCUInPic   = getNumCUsInFrame();
174  UInt picWidth      = getSlice(0)->getSPS()->getPicWidthInLumaSamples();
175  UInt picHeight     = getSlice(0)->getSPS()->getPicHeightInLumaSamples();
176  Int  numLCUsInPicWidth = getFrameWidthInCU();
177  Int  numLCUsInPicHeight= getFrameHeightInCU();
178  UInt maxNumSUInLCUWidth = getNumPartInWidth();
179  UInt maxNumSUInLCUHeight= getNumPartInHeight();
180  Int  numSlices = (Int) sliceStartAddress.size() - 1;
181  m_bIndependentSliceBoundaryForNDBFilter = false;
182  if(numSlices > 1)
183  {
184    for(Int s=0; s< numSlices; s++)
185    {
186      if((*LFCrossSliceBoundary)[s] == false)
187      {
188        m_bIndependentSliceBoundaryForNDBFilter = true;
189      }
190    }
191  }
192  m_sliceGranularityForNDBFilter = sliceGranularityDepth;
193  m_bIndependentTileBoundaryForNDBFilter  = (bNDBFilterCrossTileBoundary)?(false) :((numTiles > 1)?(true):(false));
194
195  m_pbValidSlice = new Bool[numSlices];
196  for(Int s=0; s< numSlices; s++)
197  {
198    m_pbValidSlice[s] = true;
199  }
200  m_pSliceSUMap = new Int[maxNumSUInLCU * numLCUInPic];
201
202  //initialization
203  for(UInt i=0; i< (maxNumSUInLCU * numLCUInPic); i++ )
204  {
205    m_pSliceSUMap[i] = -1;
206  }
207  for( UInt CUAddr = 0; CUAddr < numLCUInPic ; CUAddr++ )
208  {
209    TComDataCU* pcCU = getCU( CUAddr );
210    pcCU->setSliceSUMap(m_pSliceSUMap + (CUAddr* maxNumSUInLCU)); 
211    pcCU->getNDBFilterBlocks()->clear();
212  }
213  m_vSliceCUDataLink.clear();
214
215  m_vSliceCUDataLink.resize(numSlices);
216
217  UInt startAddr, endAddr, firstCUInStartLCU, startLCU, endLCU, lastCUInEndLCU, uiAddr;
218  UInt LPelX, TPelY, LCUX, LCUY;
219  UInt currSU;
220  UInt startSU, endSU;
221
222  for(Int s=0; s< numSlices; s++)
223  {
224    //1st step: decide the real start address
225    startAddr = sliceStartAddress[s];
226    endAddr   = sliceStartAddress[s+1] -1;
227
228    startLCU            = startAddr / maxNumSUInLCU;
229    firstCUInStartLCU   = startAddr % maxNumSUInLCU;
230
231    endLCU              = endAddr   / maxNumSUInLCU;
232    lastCUInEndLCU      = endAddr   % maxNumSUInLCU;   
233
234    uiAddr = m_apcPicSym->getCUOrderMap(startLCU);
235
236    LCUX      = getCU(uiAddr)->getCUPelX();
237    LCUY      = getCU(uiAddr)->getCUPelY();
238    LPelX     = LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[firstCUInStartLCU] ];
239    TPelY     = LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[firstCUInStartLCU] ];
240    currSU    = firstCUInStartLCU;
241
242    Bool bMoveToNextLCU = false;
243    Bool bSliceInOneLCU = (startLCU == endLCU);
244
245    while(!( LPelX < picWidth ) || !( TPelY < picHeight ))
246    {
247      currSU ++;
248
249      if(bSliceInOneLCU)
250      {
251        if(currSU > lastCUInEndLCU)
252        {
253          m_pbValidSlice[s] = false;
254          break;
255        }
256      }
257
258      if(currSU >= maxNumSUInLCU )
259      {
260        bMoveToNextLCU = true;
261        break;
262      }
263
264      LPelX = LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[currSU] ];
265      TPelY = LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[currSU] ];
266
267    }
268
269
270    if(!m_pbValidSlice[s])
271    {
272      continue;
273    }
274
275    if(currSU != firstCUInStartLCU)
276    {
277      if(!bMoveToNextLCU)
278      {
279        firstCUInStartLCU = currSU;
280      }
281      else
282      {
283        startLCU++;
284        firstCUInStartLCU = 0;
285        assert( startLCU < getNumCUsInFrame());
286      }
287      assert(startLCU*maxNumSUInLCU + firstCUInStartLCU < endAddr);
288    }
289
290
291    //2nd step: assign NonDBFilterInfo to each processing block
292    for(UInt i= startLCU; i <= endLCU; i++)
293    {
294      startSU = (i == startLCU)?(firstCUInStartLCU):(0);
295      endSU   = (i == endLCU  )?(lastCUInEndLCU   ):(maxNumSUInLCU -1);
296
297      uiAddr = m_apcPicSym->getCUOrderMap(i);
298      Int iTileID= m_apcPicSym->getTileIdxMap(uiAddr);
299
300      TComDataCU* pcCU = getCU(uiAddr);
301      m_vSliceCUDataLink[s].push_back(pcCU);
302
303      createNonDBFilterInfoLCU(iTileID, s, pcCU, startSU, endSU, m_sliceGranularityForNDBFilter, picWidth, picHeight);
304    }
305  }
306
307  //step 3: border availability
308  for(Int s=0; s< numSlices; s++)
309  {
310    if(!m_pbValidSlice[s])
311    {
312      continue;
313    }
314
315    for(Int i=0; i< m_vSliceCUDataLink[s].size(); i++)
316    {
317      TComDataCU* pcCU = m_vSliceCUDataLink[s][i];
318      uiAddr = pcCU->getAddr();
319
320      if(pcCU->getPic()==0)
321      {
322        continue;
323      }
324      Int iTileID= m_apcPicSym->getTileIdxMap(uiAddr);
325      Bool bTopTileBoundary = false, bDownTileBoundary= false, bLeftTileBoundary= false, bRightTileBoundary= false;
326
327      if(m_bIndependentTileBoundaryForNDBFilter)
328      {
329        //left
330        if( uiAddr % numLCUsInPicWidth != 0)
331        {
332          bLeftTileBoundary = ( m_apcPicSym->getTileIdxMap(uiAddr -1) != iTileID )?true:false;
333        }
334        //right
335        if( (uiAddr % numLCUsInPicWidth) != (numLCUsInPicWidth -1) )
336        {
337          bRightTileBoundary = ( m_apcPicSym->getTileIdxMap(uiAddr +1) != iTileID)?true:false;
338        }
339        //top
340        if( uiAddr >= numLCUsInPicWidth)
341        {
342          bTopTileBoundary = (m_apcPicSym->getTileIdxMap(uiAddr - numLCUsInPicWidth) !=  iTileID )?true:false;
343        }
344        //down
345        if( uiAddr + numLCUsInPicWidth < numLCUInPic )
346        {
347          bDownTileBoundary = (m_apcPicSym->getTileIdxMap(uiAddr + numLCUsInPicWidth) != iTileID)?true:false;
348        }
349
350      }
351
352      pcCU->setNDBFilterBlockBorderAvailability(numLCUsInPicWidth, numLCUsInPicHeight, maxNumSUInLCUWidth, maxNumSUInLCUHeight,picWidth, picHeight
353        , *LFCrossSliceBoundary
354        ,bTopTileBoundary, bDownTileBoundary, bLeftTileBoundary, bRightTileBoundary
355        ,m_bIndependentTileBoundaryForNDBFilter);
356
357    }
358
359  }
360
361  if( m_bIndependentSliceBoundaryForNDBFilter || m_bIndependentTileBoundaryForNDBFilter)
362  {
363    m_pNDBFilterYuvTmp = new TComPicYuv();
364    m_pNDBFilterYuvTmp->create(picWidth, picHeight, g_uiMaxCUWidth, g_uiMaxCUHeight, g_uiMaxCUDepth);
365  }
366
367}
368
369/** Create non-deblocked filter information for LCU
370 * \param tileID tile index
371 * \param sliceID slice index
372 * \param pcCU CU data pointer
373 * \param startSU start SU index in LCU
374 * \param endSU end SU index in LCU
375 * \param sliceGranularyDepth slice granularity
376 * \param picWidth picture width
377 * \param picHeight picture height
378 */
379Void TComPic::createNonDBFilterInfoLCU(Int tileID, Int sliceID, TComDataCU* pcCU, UInt startSU, UInt endSU, Int sliceGranularyDepth, UInt picWidth, UInt picHeight)
380{
381  UInt LCUX          = pcCU->getCUPelX();
382  UInt LCUY          = pcCU->getCUPelY();
383  Int* pCUSliceMap    = pcCU->getSliceSUMap();
384  UInt maxNumSUInLCU = getNumPartInCU();
385  UInt maxNumSUInSGU = maxNumSUInLCU >> (sliceGranularyDepth << 1);
386  UInt maxNumSUInLCUWidth = getNumPartInWidth();
387  UInt LPelX, TPelY;
388  UInt currSU;
389
390
391  //get the number of valid NBFilterBLock
392  currSU   = startSU;
393  while(currSU <= endSU)
394  {
395    LPelX = LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[currSU] ];
396    TPelY = LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[currSU] ];
397
398    while(!( LPelX < picWidth ) || !( TPelY < picHeight ))
399    {
400      currSU += maxNumSUInSGU;
401      if(currSU >= maxNumSUInLCU || currSU > endSU)
402      {
403        break;
404      }
405      LPelX = LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[currSU] ];
406      TPelY = LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[currSU] ];
407    }
408
409    if(currSU >= maxNumSUInLCU || currSU > endSU)
410    {
411      break;
412    }
413
414    NDBFBlockInfo NDBFBlock;
415
416    NDBFBlock.tileID  = tileID;
417    NDBFBlock.sliceID = sliceID;
418    NDBFBlock.posY    = TPelY;
419    NDBFBlock.posX    = LPelX;
420    NDBFBlock.startSU = currSU;
421
422    UInt uiLastValidSU  = currSU;
423    UInt uiIdx, uiLPelX_su, uiTPelY_su;
424    for(uiIdx = currSU; uiIdx < currSU + maxNumSUInSGU; uiIdx++)
425    {
426      if(uiIdx > endSU)
427      {
428        break;       
429      }
430      uiLPelX_su   = LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[uiIdx] ];
431      uiTPelY_su   = LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[uiIdx] ];
432      if( !(uiLPelX_su < picWidth ) || !( uiTPelY_su < picHeight ))
433      {
434        continue;
435      }
436      pCUSliceMap[uiIdx] = sliceID;
437      uiLastValidSU = uiIdx;
438    }
439    NDBFBlock.endSU = uiLastValidSU;
440
441    UInt rTLSU = g_auiZscanToRaster[ NDBFBlock.startSU ];
442    UInt rBRSU = g_auiZscanToRaster[ NDBFBlock.endSU   ];
443    NDBFBlock.widthSU  = (rBRSU % maxNumSUInLCUWidth) - (rTLSU % maxNumSUInLCUWidth)+ 1;
444    NDBFBlock.heightSU = (UInt)(rBRSU / maxNumSUInLCUWidth) - (UInt)(rTLSU / maxNumSUInLCUWidth)+ 1;
445    NDBFBlock.width    = NDBFBlock.widthSU  * getMinCUWidth();
446    NDBFBlock.height   = NDBFBlock.heightSU * getMinCUHeight();
447
448    pcCU->getNDBFilterBlocks()->push_back(NDBFBlock);
449
450    currSU += maxNumSUInSGU;
451  }
452
453}
454
455/** destroy non-deblocked filter information for LCU
456 */
457Void TComPic::destroyNonDBFilterInfo()
458{
459  if(m_pbValidSlice != NULL)
460  {
461    delete[] m_pbValidSlice;
462    m_pbValidSlice = NULL;
463  }
464
465  if(m_pSliceSUMap != NULL)
466  {
467    delete[] m_pSliceSUMap;
468    m_pSliceSUMap = NULL;
469  }
470  for( UInt CUAddr = 0; CUAddr < getNumCUsInFrame() ; CUAddr++ )
471  {
472    TComDataCU* pcCU = getCU( CUAddr );
473    pcCU->getNDBFilterBlocks()->clear();
474  }
475
476  if( m_bIndependentSliceBoundaryForNDBFilter || m_bIndependentTileBoundaryForNDBFilter)
477  {
478    m_pNDBFilterYuvTmp->destroy();
479    delete m_pNDBFilterYuvTmp;
480    m_pNDBFilterYuvTmp = NULL;
481  }
482
483}
484#if H_MV
485Void TComPic::print( Bool legend )
486{
487  if ( legend )
488    std::cout  << "LId"        << "\t" << "POC"   << "\t" << "Rec"          << "\t" << "Ref"                       << "\t" << "LT"            << std::endl;
489  else
490    std::cout  << getLayerId() << "\t" << getPOC()<< "\t" << getReconMark() << "\t" << getSlice(0)->isReferenced() << "\t" << getIsLongTerm() << std::endl;
491}
492
493TComPic* TComPicLists::getPic( Int layerIdInNuh, Int poc )
494{
495  TComPic* pcPic = NULL;
496  for(TComList<TComList<TComPic*>*>::iterator itL = m_lists.begin(); ( itL != m_lists.end() && pcPic == NULL ); itL++)
497  {   
498    for(TComList<TComPic*>::iterator itP=(*itL)->begin(); ( itP!=(*itL)->end() && pcPic == NULL ); itP++)
499    {
500      TComPic* currPic = (*itP); 
501      if ( ( currPic->getPOC() == poc ) && ( currPic->getLayerId() == layerIdInNuh ) )
502      {
503        pcPic = currPic ;     
504      }
505    }
506  }
507  return pcPic;
508}
509
510#if H_3D
511TComPic* TComPicLists::getPic( Int viewIndex, Bool depthFlag, Int poc )
512{
513  return getPic   ( m_vps->getLayerIdInNuh( viewIndex, depthFlag ), poc );
514}
515
516Void TComPicLists::print()
517{
518  Bool first = true;     
519  for(TComList<TComList<TComPic*>*>::iterator itL = m_lists.begin(); ( itL != m_lists.end() ); itL++)
520  {   
521    for(TComList<TComPic*>::iterator itP=(*itL)->begin(); ( itP!=(*itL)->end() ); itP++)
522    {
523      if ( first )
524      {
525        (*itP)->print( true );       
526        first = false; 
527      }
528      (*itP)->print( false );       
529    }
530  }
531}
532
533TComPicYuv* TComPicLists::getPicYuv( Int layerIdInNuh, Int poc, Bool reconFlag )
534{
535  TComPic*    pcPic = getPic( layerIdInNuh, poc );
536  TComPicYuv* pcPicYuv = NULL;
537
538  if (pcPic != NULL)
539  {
540    if( reconFlag )
541    {
542      if ( pcPic->getReconMark() )
543      {
544        pcPicYuv = pcPic->getPicYuvRec();
545      }
546    }
547    else
548    {
549      pcPicYuv = pcPic->getPicYuvOrg();
550    }
551  };
552
553  return pcPicYuv;
554}
555
556TComPicYuv* TComPicLists::getPicYuv( Int viewIndex, Bool depthFlag, Int poc, Bool recon )
557{ 
558  Int layerIdInNuh = m_vps->getLayerIdInNuh( viewIndex, depthFlag ); 
559  return getPicYuv( layerIdInNuh, poc, recon );
560}
561#if H_3D_ARP
562TComList<TComPic*>* TComPicLists::getPicList( Int layerIdInNuh )
563{
564  TComList<TComList<TComPic*>*>::iterator itL = m_lists.begin();
565  Int iLayer = 0;
566
567  assert( layerIdInNuh < m_lists.size() );
568
569  while( iLayer != layerIdInNuh )
570  {
571    itL++;
572    iLayer++;
573  }
574
575  return *itL;
576}
577#endif
578#endif // H_3D
579#endif // H_MV
580
581#if H_3D_NBDV
582Int TComPic::getDisCandRefPictures( Int iColPOC )
583{
584  UInt       uiTempLayerCurr = 7;
585  TComSlice* currSlice       = getSlice(getCurrSliceIdx());
586  UInt       numDdvCandPics  = 0;
587
588  if ( !currSlice->getEnableTMVPFlag() )
589    return numDdvCandPics;
590
591  numDdvCandPics += 1;
592
593  UInt pocCurr = currSlice->getPOC();
594  UInt pocDiff = 255;
595
596  for(UInt lpNr = 0; lpNr < (currSlice->isInterB() ? 2: 1); lpNr ++)
597  {
598    UInt x = lpNr ? currSlice->getColFromL0Flag() : 1 - currSlice->getColFromL0Flag();
599
600    for (UInt i = 0; i < currSlice->getNumRefIdx(RefPicList(x)); i++)
601    {
602      if(currSlice->getViewIndex() == currSlice->getRefPic((RefPicList)x, i)->getViewIndex() 
603        && (x == currSlice->getColFromL0Flag()||currSlice->getRefPOC((RefPicList)x, i)!= iColPOC) && numDdvCandPics!=2)
604      {
605        TComSlice* refSlice    = currSlice->getRefPic((RefPicList)x, i)->getSlice(getCurrSliceIdx());
606        Bool       bRAP        = (refSlice->getViewIndex() && refSlice->isIRAP())? 1: 0; 
607        UInt       uiTempLayer = currSlice->getRefPic((RefPicList)x, i)->getSlice(getCurrSliceIdx())->getTLayer(); 
608       
609        if( bRAP )
610        {
611          this->setRapRefIdx(i);
612          this->setRapRefList((RefPicList)x);
613          numDdvCandPics = 2;
614
615          return numDdvCandPics;
616        }
617        else if (uiTempLayerCurr > uiTempLayer) 
618        {
619           uiTempLayerCurr = uiTempLayer; 
620        }
621      }
622    }
623  }
624
625  UInt z   = -1; // GT: Added to make code compile needs to be checked!
626  UInt idx = 0;
627 
628  for(UInt lpNr = 0; lpNr < (currSlice->isInterB() ? 2: 1); lpNr ++)
629  {
630    UInt x = lpNr? currSlice->getColFromL0Flag() : 1-currSlice->getColFromL0Flag();
631   
632    for (UInt i = 0; i < currSlice->getNumRefIdx(RefPicList(x)); i++)
633    {
634      Int iTempPoc = currSlice->getRefPic((RefPicList)x, i)->getPOC();
635      Int iTempDiff = (iTempPoc > pocCurr) ? (iTempPoc - pocCurr): (pocCurr - iTempPoc);
636     
637      if(currSlice->getViewIndex() == currSlice->getRefPic((RefPicList)x, i)->getViewIndex() &&  (x == currSlice->getColFromL0Flag()||currSlice->getRefPOC((RefPicList)x, i)!= iColPOC) 
638        && currSlice->getRefPic((RefPicList)x, i)->getSlice(getCurrSliceIdx())->getTLayer() == uiTempLayerCurr && pocDiff > iTempDiff)
639      {
640        pocDiff = iTempDiff;
641        z       = x;
642        idx     = i;
643      }
644    }
645  }
646
647  if( pocDiff < 255 )
648  {
649    this->setRapRefIdx(idx);
650    this->setRapRefList((RefPicList) z );
651    numDdvCandPics = 2;
652  }
653
654  return numDdvCandPics;
655}
656#endif
657//! \}
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