libbpg-0.9.3

jctvc/TLibCommon/TComPic.cpp

@@ -0,0 +1,177 @@
+/* The copyright in this software is being made available under the BSD
+ * License, included below. This software may be subject to other third party
+ * and contributor rights, including patent rights, and no such rights are
+ * granted under this license.
+ *
+ * Copyright (c) 2010-2014, ITU/ISO/IEC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** \file     TComPic.cpp
+    \brief    picture class
+*/
+
+#include "TComPic.h"
+#include "SEI.h"
+
+//! \ingroup TLibCommon
+//! \{
+
+// ====================================================================================================================
+// Constructor / destructor / create / destroy
+// ====================================================================================================================
+
+TComPic::TComPic()
+: m_uiTLayer                              (0)
+, m_bUsedByCurr                           (false)
+, m_bIsLongTerm                           (false)
+, m_apcPicSym                             (NULL)
+, m_pcPicYuvPred                          (NULL)
+, m_pcPicYuvResi                          (NULL)
+, m_bReconstructed                        (false)
+, m_bNeededForOutput                      (false)
+, m_uiCurrSliceIdx                        (0)
+, m_bCheckLTMSB                           (false)
+{
+  for(UInt i=0; i<NUM_PIC_YUV; i++)
+  {
+    m_apcPicYuv[i]      = NULL;
+  }
+}
+
+TComPic::~TComPic()
+{
+}
+
+Void TComPic::create( Int iWidth, Int iHeight, ChromaFormat chromaFormatIDC, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth, Window &conformanceWindow, Window &defaultDisplayWindow,
+                      Int *numReorderPics, Bool bIsVirtual)
+{
+  m_apcPicSym     = new TComPicSym;  m_apcPicSym   ->create( chromaFormatIDC, iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
+  if (!bIsVirtual)
+  {
+    m_apcPicYuv[PIC_YUV_ORG]  = new TComPicYuv;  m_apcPicYuv[PIC_YUV_ORG]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth );
+    m_apcPicYuv[PIC_YUV_TRUE_ORG]  = new TComPicYuv;  m_apcPicYuv[PIC_YUV_TRUE_ORG]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth );
+  }
+  m_apcPicYuv[PIC_YUV_REC]  = new TComPicYuv;  m_apcPicYuv[PIC_YUV_REC]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth );
+
+  // there are no SEI messages associated with this picture initially
+  if (m_SEIs.size() > 0)
+  {
+    deleteSEIs (m_SEIs);
+  }
+  m_bUsedByCurr = false;
+
+  /* store conformance window parameters with picture */
+  m_conformanceWindow = conformanceWindow;
+
+  /* store display window parameters with picture */
+  m_defaultDisplayWindow = defaultDisplayWindow;
+
+  /* store number of reorder pics with picture */
+  memcpy(m_numReorderPics, numReorderPics, MAX_TLAYER*sizeof(Int));
+
+  return;
+}
+
+Void TComPic::destroy()
+{
+  if (m_apcPicSym)
+  {
+    m_apcPicSym->destroy();
+    delete m_apcPicSym;
+    m_apcPicSym = NULL;
+  }
+
+  for(UInt i=0; i<NUM_PIC_YUV; i++)
+  {
+    if (m_apcPicYuv[i])
+    {
+      m_apcPicYuv[i]->destroy();
+      delete m_apcPicYuv[i];
+      m_apcPicYuv[i]  = NULL;
+    }
+  }
+
+  deleteSEIs(m_SEIs);
+}
+
+Void TComPic::compressMotion()
+{
+  TComPicSym* pPicSym = getPicSym();
+  for ( UInt uiCUAddr = 0; uiCUAddr < pPicSym->getNumberOfCtusInFrame(); uiCUAddr++ )
+  {
+    TComDataCU* pCtu = pPicSym->getCtu(uiCUAddr);
+    pCtu->compressMV();
+  }
+}
+
+Bool  TComPic::getSAOMergeAvailability(Int currAddr, Int mergeAddr)
+{
+  Bool mergeCtbInSliceSeg = (mergeAddr >= getPicSym()->getCtuTsToRsAddrMap(getCtu(currAddr)->getSlice()->getSliceCurStartCtuTsAddr()));
+  Bool mergeCtbInTile     = (getPicSym()->getTileIdxMap(mergeAddr) == getPicSym()->getTileIdxMap(currAddr));
+  return (mergeCtbInSliceSeg && mergeCtbInTile);
+}
+
+UInt TComPic::getSubstreamForCtuAddr(const UInt ctuAddr, const Bool bAddressInRaster, TComSlice *pcSlice)
+{
+  UInt subStrm;
+
+  if (pcSlice->getPPS()->getNumSubstreams() > 1) // wavefronts, and possibly tiles being used.
+  {
+    if (pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
+    {
+      const TComPicSym &picSym            = *(getPicSym());
+      const UInt ctuRsAddr                = bAddressInRaster?ctuAddr : picSym.getCtuTsToRsAddrMap(ctuAddr);
+      const UInt frameWidthInCtus         = picSym.getFrameWidthInCtus();
+      const UInt tileIndex                = picSym.getTileIdxMap(ctuRsAddr);
+      const UInt numTileColumns           = (picSym.getNumTileColumnsMinus1()+1);
+      const TComTile *pTile               = picSym.getTComTile(tileIndex);
+      const UInt firstCtuRsAddrOfTile     = pTile->getFirstCtuRsAddr();
+      const UInt tileYInCtus              = firstCtuRsAddrOfTile / frameWidthInCtus;
+      // independent tiles => substreams are "per tile"
+      const UInt ctuLine                  = ctuRsAddr / frameWidthInCtus;
+      const UInt startingSubstreamForTile =(tileYInCtus*numTileColumns) + (pTile->getTileHeightInCtus()*(tileIndex%numTileColumns));
+      subStrm = startingSubstreamForTile + (ctuLine - tileYInCtus);
+    }
+    else
+    {
+      const TComPicSym &picSym            = *(getPicSym());
+      const UInt ctuRsAddr                = bAddressInRaster?ctuAddr : picSym.getCtuTsToRsAddrMap(ctuAddr);
+      const UInt tileIndex                = picSym.getTileIdxMap(ctuRsAddr);
+      subStrm=tileIndex;
+    }
+  }
+  else
+  {
+    // dependent tiles => substreams are "per frame".
+    subStrm = 0;
+  }
+  return subStrm;
+}
+
+
+//! \}