source: SHVCSoftware/branches/0.1.1-bugfix/source/Lib/TLibDecoder/TDecSlice.cpp @ 1565

Last change on this file since 1565 was 2, checked in by seregin, 12 years ago

Initial import by Vadim Seregin <vseregin@…>
File size: 19.1 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 *
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13 *    this list of conditions and the following disclaimer.
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15 *    this list of conditions and the following disclaimer in the documentation
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18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
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22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/** \file     TDecSlice.cpp
35    \brief    slice decoder class
36*/
37
38#include "TDecSlice.h"
39
40//! \ingroup TLibDecoder
41//! \{
42
43//////////////////////////////////////////////////////////////////////
44// Construction/Destruction
45//////////////////////////////////////////////////////////////////////
46
47TDecSlice::TDecSlice()
48{
49  m_pcBufferSbacDecoders = NULL;
50  m_pcBufferBinCABACs    = NULL;
51  m_pcBufferLowLatSbacDecoders = NULL;
52  m_pcBufferLowLatBinCABACs    = NULL;
53}
54
55TDecSlice::~TDecSlice()
56{
57#if DEPENDENT_SLICES
58  for (std::vector<TDecSbac*>::iterator i = CTXMem.begin(); i != CTXMem.end(); i++)
59  {
60    delete (*i);
61  }
62  CTXMem.clear();
63#endif
64}
65
66#if DEPENDENT_SLICES
67Void TDecSlice::initCtxMem(  UInt i )               
68{   
69  for (std::vector<TDecSbac*>::iterator j = CTXMem.begin(); j != CTXMem.end(); j++)
70  {
71    delete (*j);
72  }
73  CTXMem.clear(); 
74  CTXMem.resize(i); 
75}
76#endif
77
78Void TDecSlice::create( TComSlice* pcSlice, Int iWidth, Int iHeight, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth )
79{
80}
81
82Void TDecSlice::destroy()
83{
84  if ( m_pcBufferSbacDecoders )
85  {
86    delete[] m_pcBufferSbacDecoders;
87    m_pcBufferSbacDecoders = NULL;
88  }
89  if ( m_pcBufferBinCABACs )
90  {
91    delete[] m_pcBufferBinCABACs;
92    m_pcBufferBinCABACs = NULL;
93  }
94  if ( m_pcBufferLowLatSbacDecoders )
95  {
96    delete[] m_pcBufferLowLatSbacDecoders;
97    m_pcBufferLowLatSbacDecoders = NULL;
98  }
99  if ( m_pcBufferLowLatBinCABACs )
100  {
101    delete[] m_pcBufferLowLatBinCABACs;
102    m_pcBufferLowLatBinCABACs = NULL;
103  }
104}
105
106#if SVC_EXTENSION
107Void TDecSlice::init(TDecTop** ppcDecTop,TDecEntropy* pcEntropyDecoder, TDecCu* pcCuDecoder)
108#else
109Void TDecSlice::init(TDecEntropy* pcEntropyDecoder, TDecCu* pcCuDecoder)
110#endif
111{
112  m_pcEntropyDecoder  = pcEntropyDecoder;
113  m_pcCuDecoder       = pcCuDecoder;
114#if SVC_EXTENSION   
115  m_ppcTDecTop        = ppcDecTop; 
116#endif
117}
118
119Void TDecSlice::decompressSlice(TComInputBitstream* pcBitstream, TComInputBitstream** ppcSubstreams, TComPic*& rpcPic, TDecSbac* pcSbacDecoder, TDecSbac* pcSbacDecoders)
120{
121  TComDataCU* pcCU;
122  UInt        uiIsLast = 0;
123  Int   iStartCUEncOrder = max(rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getSliceCurStartCUAddr()/rpcPic->getNumPartInCU(), rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getDependentSliceCurStartCUAddr()/rpcPic->getNumPartInCU());
124  Int   iStartCUAddr = rpcPic->getPicSym()->getCUOrderMap(iStartCUEncOrder);
125
126  // decoder don't need prediction & residual frame buffer
127  rpcPic->setPicYuvPred( 0 );
128  rpcPic->setPicYuvResi( 0 );
129 
130#if ENC_DEC_TRACE
131  g_bJustDoIt = g_bEncDecTraceEnable;
132#endif
133  DTRACE_CABAC_VL( g_nSymbolCounter++ );
134  DTRACE_CABAC_T( "\tPOC: " );
135  DTRACE_CABAC_V( rpcPic->getPOC() );
136  DTRACE_CABAC_T( "\n" );
137
138#if ENC_DEC_TRACE
139  g_bJustDoIt = g_bEncDecTraceDisable;
140#endif
141
142  UInt uiTilesAcross   = rpcPic->getPicSym()->getNumColumnsMinus1()+1;
143  TComSlice*  pcSlice = rpcPic->getSlice(rpcPic->getCurrSliceIdx());
144  Int  iNumSubstreams = pcSlice->getPPS()->getNumSubstreams();
145
146  // delete decoders if already allocated in previous slice
147  if (m_pcBufferSbacDecoders)
148  {
149    delete [] m_pcBufferSbacDecoders;
150  }
151  if (m_pcBufferBinCABACs) 
152  {
153    delete [] m_pcBufferBinCABACs;
154  }
155  // allocate new decoders based on tile numbaer
156  m_pcBufferSbacDecoders = new TDecSbac    [uiTilesAcross]; 
157  m_pcBufferBinCABACs    = new TDecBinCABAC[uiTilesAcross];
158  for (UInt ui = 0; ui < uiTilesAcross; ui++)
159  {
160    m_pcBufferSbacDecoders[ui].init(&m_pcBufferBinCABACs[ui]);
161  }
162  //save init. state
163  for (UInt ui = 0; ui < uiTilesAcross; ui++)
164  {
165    m_pcBufferSbacDecoders[ui].load(pcSbacDecoder);
166  }
167
168  // free memory if already allocated in previous call
169  if (m_pcBufferLowLatSbacDecoders)
170  {
171    delete [] m_pcBufferLowLatSbacDecoders;
172  }
173  if (m_pcBufferLowLatBinCABACs)
174  {
175    delete [] m_pcBufferLowLatBinCABACs;
176  }
177  m_pcBufferLowLatSbacDecoders = new TDecSbac    [uiTilesAcross]; 
178  m_pcBufferLowLatBinCABACs    = new TDecBinCABAC[uiTilesAcross];
179  for (UInt ui = 0; ui < uiTilesAcross; ui++)
180  {
181    m_pcBufferLowLatSbacDecoders[ui].init(&m_pcBufferLowLatBinCABACs[ui]);
182  }
183  //save init. state
184  for (UInt ui = 0; ui < uiTilesAcross; ui++)
185  {
186    m_pcBufferLowLatSbacDecoders[ui].load(pcSbacDecoder);
187  }
188
189  UInt uiWidthInLCUs  = rpcPic->getPicSym()->getFrameWidthInCU();
190  //UInt uiHeightInLCUs = rpcPic->getPicSym()->getFrameHeightInCU();
191  UInt uiCol=0, uiLin=0, uiSubStrm=0;
192
193  UInt uiTileCol;
194  UInt uiTileStartLCU;
195  UInt uiTileLCUX;
196  UInt uiTileLCUY;
197  UInt uiTileWidth;
198  UInt uiTileHeight;
199  Int iNumSubstreamsPerTile = 1; // if independent.
200
201#if INTRA_BL
202  m_pcCuDecoder->setBaseRecPic( rpcPic->getLayerId() > 0 ? rpcPic->getFullPelBaseRec() : NULL);
203#endif
204#if DEPENDENT_SLICES
205  Bool bAllowDependence = false;
206#if TILES_WPP_ENTROPYSLICES_FLAGS
207  if( rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getPPS()->getDependentSliceEnabledFlag()&& (!rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getPPS()->getEntropySliceEnabledFlag()) )
208#else
209  if( rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getPPS()->getDependentSliceEnabledFlag()&& (!rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getPPS()->getCabacIndependentFlag()) )
210#endif
211  {
212    bAllowDependence = true;
213  }
214  if( bAllowDependence )
215  {
216    if( !rpcPic->getSlice(rpcPic->getCurrSliceIdx())->isNextSlice() )
217    {
218      uiTileCol = 0;
219#if TILES_WPP_ENTROPYSLICES_FLAGS
220      if(pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
221#else
222      if(pcSlice->getPPS()->getTilesOrEntropyCodingSyncIdc()==2)
223#endif
224      {
225        m_pcBufferSbacDecoders[uiTileCol].loadContexts( CTXMem[1]  );//2.LCU
226      }
227      pcSbacDecoder->loadContexts(CTXMem[0] ); //end of depSlice-1
228      pcSbacDecoders[uiSubStrm].loadContexts(pcSbacDecoder);
229    }
230    else
231    {
232#if TILES_WPP_ENTROPYSLICES_FLAGS
233      if(pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
234#else
235      if(pcSlice->getPPS()->getTilesOrEntropyCodingSyncIdc()==2)
236#endif
237      {
238        CTXMem[1]->loadContexts(pcSbacDecoder);
239      }
240      CTXMem[0]->loadContexts(pcSbacDecoder);
241    }
242  }
243#endif
244  for( Int iCUAddr = iStartCUAddr; !uiIsLast && iCUAddr < rpcPic->getNumCUsInFrame(); iCUAddr = rpcPic->getPicSym()->xCalculateNxtCUAddr(iCUAddr) )
245  {
246    pcCU = rpcPic->getCU( iCUAddr );
247    pcCU->initCU( rpcPic, iCUAddr );
248    uiTileCol = rpcPic->getPicSym()->getTileIdxMap(iCUAddr) % (rpcPic->getPicSym()->getNumColumnsMinus1()+1); // what column of tiles are we in?
249    uiTileStartLCU = rpcPic->getPicSym()->getTComTile(rpcPic->getPicSym()->getTileIdxMap(iCUAddr))->getFirstCUAddr();
250    uiTileLCUX = uiTileStartLCU % uiWidthInLCUs;
251    uiTileLCUY = uiTileStartLCU / uiWidthInLCUs;
252    uiTileWidth = rpcPic->getPicSym()->getTComTile(rpcPic->getPicSym()->getTileIdxMap(iCUAddr))->getTileWidth();
253    uiTileHeight = rpcPic->getPicSym()->getTComTile(rpcPic->getPicSym()->getTileIdxMap(iCUAddr))->getTileHeight();
254    uiCol     = iCUAddr % uiWidthInLCUs;
255    // The 'line' is now relative to the 1st line in the slice, not the 1st line in the picture.
256    uiLin     = (iCUAddr/uiWidthInLCUs)-(iStartCUAddr/uiWidthInLCUs);
257    // inherit from TR if necessary, select substream to use.
258#if DEPENDENT_SLICES
259#if TILES_WPP_ENTROPYSLICES_FLAGS
260    if( (pcSlice->getPPS()->getNumSubstreams() > 1) || ( bAllowDependence  && (uiCol == uiTileLCUX)&&(pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag()) ))
261#else
262    if( (pcSlice->getPPS()->getNumSubstreams() > 1) || ( bAllowDependence  && (uiCol == uiTileLCUX)&&(pcSlice->getPPS()->getTilesOrEntropyCodingSyncIdc()==2) ))
263#endif
264#else
265    if( pcSlice->getPPS()->getNumSubstreams() > 1 )
266#endif
267    {
268      // independent tiles => substreams are "per tile".  iNumSubstreams has already been multiplied.
269      iNumSubstreamsPerTile = iNumSubstreams/rpcPic->getPicSym()->getNumTiles();
270      uiSubStrm = rpcPic->getPicSym()->getTileIdxMap(iCUAddr)*iNumSubstreamsPerTile
271                  + uiLin%iNumSubstreamsPerTile;
272      m_pcEntropyDecoder->setBitstream( ppcSubstreams[uiSubStrm] );
273      // Synchronize cabac probabilities with upper-right LCU if it's available and we're at the start of a line.
274#if DEPENDENT_SLICES
275#if TILES_WPP_ENTROPYSLICES_FLAGS
276      if (((pcSlice->getPPS()->getNumSubstreams() > 1) || bAllowDependence ) && (uiCol == uiTileLCUX)&&(pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag()))
277#else
278      if (((pcSlice->getPPS()->getNumSubstreams() > 1) || bAllowDependence ) && (uiCol == uiTileLCUX)&&(pcSlice->getPPS()->getTilesOrEntropyCodingSyncIdc()==2))
279#endif
280#else
281      if (pcSlice->getPPS()->getNumSubstreams() > 1 && uiCol == uiTileLCUX)
282#endif
283      {
284        // We'll sync if the TR is available.
285        TComDataCU *pcCUUp = pcCU->getCUAbove();
286        UInt uiWidthInCU = rpcPic->getFrameWidthInCU();
287        TComDataCU *pcCUTR = NULL;
288        if ( pcCUUp && ((iCUAddr%uiWidthInCU+1) < uiWidthInCU)  )
289        {
290          pcCUTR = rpcPic->getCU( iCUAddr - uiWidthInCU + 1 );
291        }
292        UInt uiMaxParts = 1<<(pcSlice->getSPS()->getMaxCUDepth()<<1);
293
294        if ( (true/*bEnforceSliceRestriction*/ &&
295             ((pcCUTR==NULL) || (pcCUTR->getSlice()==NULL) || 
296             ((pcCUTR->getSCUAddr()+uiMaxParts-1) < pcSlice->getSliceCurStartCUAddr()) ||
297             ((rpcPic->getPicSym()->getTileIdxMap( pcCUTR->getAddr() ) != rpcPic->getPicSym()->getTileIdxMap(iCUAddr)))
298             ))||
299             (true/*bEnforceDependentSliceRestriction*/ &&
300             ((pcCUTR==NULL) || (pcCUTR->getSlice()==NULL) || 
301             ((pcCUTR->getSCUAddr()+uiMaxParts-1) < pcSlice->getDependentSliceCurStartCUAddr()) ||
302             ((rpcPic->getPicSym()->getTileIdxMap( pcCUTR->getAddr() ) != rpcPic->getPicSym()->getTileIdxMap(iCUAddr)))
303             ))
304           )
305        {
306#if DEPENDENT_SLICES
307          if( (iCUAddr!=0) && ((pcCUTR->getSCUAddr()+uiMaxParts-1) >= pcSlice->getSliceCurStartCUAddr()) && bAllowDependence)
308          {
309             pcSbacDecoders[uiSubStrm].loadContexts( &m_pcBufferSbacDecoders[uiTileCol] ); 
310          }
311#endif
312          // TR not available.
313        }
314        else
315        {
316          // TR is available, we use it.
317          pcSbacDecoders[uiSubStrm].loadContexts( &m_pcBufferSbacDecoders[uiTileCol] );
318        }
319      }
320      pcSbacDecoder->load(&pcSbacDecoders[uiSubStrm]);  //this load is used to simplify the code (avoid to change all the call to pcSbacDecoders)
321    }
322    else if ( pcSlice->getPPS()->getNumSubstreams() <= 1 )
323    {
324      // Set variables to appropriate values to avoid later code change.
325      iNumSubstreamsPerTile = 1;
326    }
327
328    if ( (iCUAddr == rpcPic->getPicSym()->getTComTile(rpcPic->getPicSym()->getTileIdxMap(iCUAddr))->getFirstCUAddr()) && // 1st in tile.
329         (iCUAddr!=0) && (iCUAddr!=rpcPic->getPicSym()->getPicSCUAddr(rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getSliceCurStartCUAddr())/rpcPic->getNumPartInCU())
330#if DEPENDENT_SLICES
331         && (iCUAddr!=rpcPic->getPicSym()->getPicSCUAddr(rpcPic->getSlice(rpcPic->getCurrSliceIdx())->getDependentSliceCurStartCUAddr())/rpcPic->getNumPartInCU())
332#endif
333         ) // !1st in frame && !1st in slice
334    {
335      if (pcSlice->getPPS()->getNumSubstreams() > 1)
336      {
337        // We're crossing into another tile, tiles are independent.
338        // When tiles are independent, we have "substreams per tile".  Each substream has already been terminated, and we no longer
339        // have to perform it here.
340        // For TILES_DECODER, there can be a header at the start of the 1st substream in a tile.  These are read when the substreams
341        // are extracted, not here.
342      }
343      else
344      {
345        SliceType sliceType  = pcSlice->getSliceType();
346        if (pcSlice->getCabacInitFlag())
347        {
348          switch (sliceType)
349          {
350          case P_SLICE:           // change initialization table to B_SLICE intialization
351            sliceType = B_SLICE; 
352            break;
353          case B_SLICE:           // change initialization table to P_SLICE intialization
354            sliceType = P_SLICE; 
355            break;
356          default     :           // should not occur
357            assert(0);
358          }
359        }
360        m_pcEntropyDecoder->updateContextTables( sliceType, pcSlice->getSliceQp() );
361      }
362     
363    }
364
365#if ENC_DEC_TRACE
366    g_bJustDoIt = g_bEncDecTraceEnable;
367#endif
368#if !SAO_LUM_CHROMA_ONOFF_FLAGS
369    if ( pcSlice->getSPS()->getUseSAO() && pcSlice->getSaoEnabledFlag() )
370#else
371    if ( pcSlice->getSPS()->getUseSAO() && (pcSlice->getSaoEnabledFlag()||pcSlice->getSaoEnabledFlagChroma()) )
372#endif
373    {
374#if REMOVE_APS
375      SAOParam *saoParam = rpcPic->getPicSym()->getSaoParam();
376#else
377      SAOParam *saoParam = pcSlice->getAPS()->getSaoParam();
378#endif
379      saoParam->bSaoFlag[0] = pcSlice->getSaoEnabledFlag();
380      if (iCUAddr == iStartCUAddr)
381      {
382#if SAO_TYPE_SHARING
383        saoParam->bSaoFlag[1] = pcSlice->getSaoEnabledFlagChroma();
384#else
385        saoParam->bSaoFlag[1] = pcSlice->getSaoEnabledFlagCb();
386        saoParam->bSaoFlag[2] = pcSlice->getSaoEnabledFlagCr();
387#endif
388      }
389      Int numCuInWidth     = saoParam->numCuInWidth;
390      Int cuAddrInSlice = iCUAddr - rpcPic->getPicSym()->getCUOrderMap(pcSlice->getSliceCurStartCUAddr()/rpcPic->getNumPartInCU());
391      Int cuAddrUpInSlice  = cuAddrInSlice - numCuInWidth;
392      Int rx = iCUAddr % numCuInWidth;
393      Int ry = iCUAddr / numCuInWidth;
394      Int allowMergeLeft = 1;
395      Int allowMergeUp   = 1;
396      if (rx!=0)
397      {
398        if (rpcPic->getPicSym()->getTileIdxMap(iCUAddr-1) != rpcPic->getPicSym()->getTileIdxMap(iCUAddr))
399        {
400          allowMergeLeft = 0;
401        }
402      }
403      if (ry!=0)
404      {
405        if (rpcPic->getPicSym()->getTileIdxMap(iCUAddr-numCuInWidth) != rpcPic->getPicSym()->getTileIdxMap(iCUAddr))
406        {
407          allowMergeUp = 0;
408        }
409      }
410      pcSbacDecoder->parseSaoOneLcuInterleaving(rx, ry, saoParam,pcCU, cuAddrInSlice, cuAddrUpInSlice, allowMergeLeft, allowMergeUp);
411    }
412#if !REMOVE_ALF
413    if(pcSlice->getSPS()->getUseALF())
414    {
415      UInt alfEnabledFlag;
416      for(Int compIdx=0; compIdx< 3; compIdx++)
417      {
418        alfEnabledFlag = 0;
419        if(pcSlice->getAlfEnabledFlag(compIdx))
420        {
421          pcSbacDecoder->parseAlfCtrlFlag(compIdx, alfEnabledFlag);
422        }
423        pcCU->setAlfLCUEnabled((alfEnabledFlag==1)?true:false, compIdx);
424      }
425    }
426#endif
427    m_pcCuDecoder->decodeCU     ( pcCU, uiIsLast );
428    m_pcCuDecoder->decompressCU ( pcCU );
429   
430#if ENC_DEC_TRACE
431    g_bJustDoIt = g_bEncDecTraceDisable;
432#endif
433    /*If at the end of a LCU line but not at the end of a substream, perform CABAC flush*/
434    if (!uiIsLast && pcSlice->getPPS()->getNumSubstreams() > 1)
435    {
436      if ((uiCol == uiTileLCUX+uiTileWidth-1) && (uiLin+iNumSubstreamsPerTile < uiTileLCUY+uiTileHeight))
437      {
438        m_pcEntropyDecoder->decodeFlush();
439      }
440    }
441    pcSbacDecoders[uiSubStrm].load(pcSbacDecoder);
442
443    //Store probabilities of second LCU in line into buffer
444#if DEPENDENT_SLICES
445#if TILES_WPP_ENTROPYSLICES_FLAGS
446    if ( (uiCol == uiTileLCUX+1)&& (bAllowDependence || (pcSlice->getPPS()->getNumSubstreams() > 1)) && (pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag()) )
447#else
448    if ( (uiCol == uiTileLCUX+1)&& (bAllowDependence || (pcSlice->getPPS()->getNumSubstreams() > 1)) && (pcSlice->getPPS()->getTilesOrEntropyCodingSyncIdc() == 2))
449#endif
450#else
451    if (pcSlice->getPPS()->getNumSubstreams() > 1 && (uiCol == uiTileLCUX+1))
452#endif
453    {
454      m_pcBufferSbacDecoders[uiTileCol].loadContexts( &pcSbacDecoders[uiSubStrm] );
455    }
456#if DEPENDENT_SLICES
457    if( uiIsLast && bAllowDependence )
458    {
459#if TILES_WPP_ENTROPYSLICES_FLAGS
460      if (pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
461#else
462      if (pcSlice->getPPS()->getTilesOrEntropyCodingSyncIdc()==2)
463#endif
464       {
465         CTXMem[1]->loadContexts( &m_pcBufferSbacDecoders[uiTileCol] );//ctx 2.LCU
466       }
467      CTXMem[0]->loadContexts( pcSbacDecoder );//ctx end of dep.slice
468      return;
469    }
470#endif
471  }
472}
473
474ParameterSetManagerDecoder::ParameterSetManagerDecoder()
475: m_vpsBuffer(MAX_NUM_VPS)
476,m_spsBuffer(256)
477, m_ppsBuffer(16)
478#if !REMOVE_APS
479, m_apsBuffer(64)
480#endif
481{
482
483}
484
485ParameterSetManagerDecoder::~ParameterSetManagerDecoder()
486{
487
488}
489
490TComVPS* ParameterSetManagerDecoder::getPrefetchedVPS  (Int vpsId)
491{
492  if (m_vpsBuffer.getPS(vpsId) != NULL )
493  {
494    return m_vpsBuffer.getPS(vpsId);
495  }
496  else
497  {
498    return getVPS(vpsId);
499  }
500}
501
502
503TComSPS* ParameterSetManagerDecoder::getPrefetchedSPS  (Int spsId)
504{
505  if (m_spsBuffer.getPS(spsId) != NULL )
506  {
507    return m_spsBuffer.getPS(spsId);
508  }
509  else
510  {
511    return getSPS(spsId);
512  }
513}
514
515TComPPS* ParameterSetManagerDecoder::getPrefetchedPPS  (Int ppsId)
516{
517  if (m_ppsBuffer.getPS(ppsId) != NULL )
518  {
519    return m_ppsBuffer.getPS(ppsId);
520  }
521  else
522  {
523    return getPPS(ppsId);
524  }
525}
526
527#if !REMOVE_APS
528TComAPS* ParameterSetManagerDecoder::getPrefetchedAPS  (Int apsId)
529{
530  if (m_apsBuffer.getPS(apsId) != NULL )
531  {
532    return m_apsBuffer.getPS(apsId);
533  }
534  else
535  {
536    return getAPS(apsId);
537  }
538}
539#endif
540
541Void     ParameterSetManagerDecoder::applyPrefetchedPS()
542{
543  m_vpsMap.mergePSList(m_vpsBuffer);
544#if !REMOVE_APS
545  m_apsMap.mergePSList(m_apsBuffer);
546#endif
547  m_ppsMap.mergePSList(m_ppsBuffer);
548  m_spsMap.mergePSList(m_spsBuffer);
549}
550
551//! \}
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