Changeset 1005 in SHVCSoftware for branches/SHM-dev/source/Lib/TLibDecoder/TDecTop.cpp

Timestamp:

26 Jan 2015, 17:11:15 (10 years ago)

Author:

nokia

Message:

Implementation of JCTVC-R0235 - Processing of bitstreams without an available base layer

File:

• branches/SHM-dev/source/Lib/TLibDecoder/TDecTop.cpp (modified) (7 diffs)

branches/SHM-dev/source/Lib/TLibDecoder/TDecTop.cpp

@@ -84 +84 @@
 #if SVC_EXTENSION 
   m_layerId = 0;
+#if R0235_SMALLEST_LAYER_ID
+  m_smallestLayerId = 0;
+#endif
 #if AVC_BASE
   m_pBLReconFile = NULL;
@@ -1011 +1014 @@
 #if OUTPUT_LAYER_SET_INDEX
   // Following check should go wherever the VPS is activated
-  checkValueOfTargetOutputLayerSetIdx( m_apcSlicePilot->getVPS());
+#if R0235_SMALLEST_LAYER_ID
+  if (!m_apcSlicePilot->getVPS()->getBaseLayerAvailableFlag())
+  {
+    assert(nalu.m_layerId != 0);
+    assert(m_apcSlicePilot->getVPS()->getNumAddLayerSets() > 0);
+    if (getCommonDecoderParams()->getTargetOutputLayerSetIdx() >= 0)
+    {
+      UInt layerIdx = m_apcSlicePilot->getVPS()->getOutputLayerSetIdx(getCommonDecoderParams()->getTargetOutputLayerSetIdx());
+      assert(layerIdx > m_apcSlicePilot->getVPS()->getVpsNumLayerSetsMinus1());
+    }
+  }
+  if (m_apcSlicePilot->getVPS()->getNumAddLayerSets() == 0)
+  {
+    checkValueOfTargetOutputLayerSetIdx(m_apcSlicePilot->getVPS());
+  }
+#else
+  checkValueOfTargetOutputLayerSetIdx(m_apcSlicePilot->getVPS());
+#endif
 #endif
 #if RESOLUTION_BASED_DPB
@@ -1143 +1163 @@
 #if NO_OUTPUT_OF_PRIOR_PICS
 #if NO_CLRAS_OUTPUT_FLAG
+#if R0235_SMALLEST_LAYER_ID
+  if (m_layerId == m_smallestLayerId && m_apcSlicePilot->getRapPicFlag())
+#else
   if (m_layerId == 0 && m_apcSlicePilot->getRapPicFlag() )
+#endif
   {
     if (m_bFirstSliceInSequence)
@@ -1175 +1199 @@
   }
 
+#if R0235_SMALLEST_LAYER_ID
+  m_apcSlicePilot->decodingRefreshMarking( m_cListPic, m_noClrasOutputFlag, m_smallestLayerId );
+#else
   m_apcSlicePilot->decodingRefreshMarking( m_cListPic, m_noClrasOutputFlag );
+#endif
 #endif
 
@@ -2640 +2668 @@
         cListPic->clear();
       }
+#endif
+#if R0235_SMALLEST_LAYER_ID
+      xDeriveSmallestLayerId(m_parameterSetManagerDecoder.getPrefetchedVPS(0));
 #endif
       return false;
@@ -3126 +3157 @@
 Void TDecTop::xCheckLayerReset()
 {
+#if R0235_SMALLEST_LAYER_ID
+  if (m_apcSlicePilot->isIRAP() && m_layerId > m_smallestLayerId)
+#else
   if (m_apcSlicePilot->isIRAP() && m_layerId > 0)
+#endif
   {
     Bool layerResetFlag;
@@ -3210 +3245 @@
 #endif
 
+#if R0235_SMALLEST_LAYER_ID
+Void TDecTop::xDeriveSmallestLayerId(TComVPS* vps)
+{
+  UInt smallestLayerId;
+  UInt targetOlsIdx = getCommonDecoderParams()->getTargetOutputLayerSetIdx();
+  UInt targetDecLayerSetIdx = vps->getOutputLayerSetIdx(targetOlsIdx);
+  UInt lsIdx = targetDecLayerSetIdx;
+  UInt targetDecLayerIdList[MAX_LAYERS] = {0};
+
+  for (UInt i = 0, j = 0; i < vps->getNumLayersInIdList(lsIdx); i++)
+  {
+    if (vps->getNecessaryLayerFlag(targetOlsIdx, i))
+    {
+      targetDecLayerIdList[j++] = vps->getLayerSetLayerIdList(lsIdx, i);
+    }
+  }
+
+  if (targetDecLayerSetIdx <= vps->getVpsNumLayerSetsMinus1())
+  {
+    smallestLayerId = 0;
+  }
+  else if (vps->getNumLayersInIdList(targetDecLayerSetIdx) == 1)
+  {
+    smallestLayerId = 0;
+  }
+  else
+  {
+    smallestLayerId = targetDecLayerIdList[0];
+  }
+
+  for (UInt layer = 0; layer <= MAX_VPS_LAYER_ID_PLUS1 - 1; layer++)
+  {
+    m_ppcTDecTop[layer]->m_smallestLayerId = smallestLayerId;
+  }
+}
+#endif
+
 #endif //SVC_EXTENSION