Changeset 521 in SHVCSoftware for branches/SHM-4.1-dev/source/Lib

Timestamp:

19 Dec 2013, 03:10:48 (11 years ago)

Author:

qualcomm

Message:

JCTVC-O0217: Output layer set index at the decoder (MACRO: OUTPUT_LAYER_SET_INDEX)

Patch includes output layer set index inference at the decoder.

From: Adarsh K. Ramasubramonian <aramasub@…>

Location:

branches/SHM-4.1-dev/source/Lib

Files:

• TLibCommon/CommonDef.h (modified) (2 diffs)
• TLibCommon/TypeDef.h (modified) (1 diff)
• TLibDecoder/TDecTop.cpp (modified) (3 diffs)
• TLibDecoder/TDecTop.h (modified) (2 diffs)

branches/SHM-4.1-dev/source/Lib/TLibCommon/CommonDef.h

@@ -40 +40 @@
 
 #include <algorithm>
-
+#include <vector>
 #if _MSC_VER > 1000
 // disable "signed and unsigned mismatch"
@@ -280 +280 @@
 };
 
+#if OUTPUT_LAYER_SET_INDEX
+class CommonDecoderParams
+{
+  Int m_targetLayerId;
+  Int m_outputLayerSetIdx;
+  std::vector<Int> *m_targetDecLayerIdSet; 
+  Bool m_valueCheckedFlag;
+public:
+  CommonDecoderParams(): 
+    m_targetLayerId(0)
+    , m_outputLayerSetIdx(-1)
+    , m_targetDecLayerIdSet(NULL)
+    , m_valueCheckedFlag(false)
+ {}
+
+  Void setTargetLayerId(const Int x) { m_targetLayerId = x;   }
+  Int  getTargetLayerId()            { return m_targetLayerId;}
+  
+  Void setOutputLayerSetIdx(const Int x) { m_outputLayerSetIdx = x;   }
+  Int  getOutputLayerSetIdx()            { return m_outputLayerSetIdx;}
+
+  Void               setTargetDecLayerIdSet(std::vector<Int> *x) { m_targetDecLayerIdSet = x;   }
+  std::vector<Int>*  getTargetDecLayerIdSet()                    { return m_targetDecLayerIdSet;}
+  
+  Void setValueCheckedFlag(const Bool x) { m_valueCheckedFlag = x;   }
+  Bool getValueCheckedFlag()            { return m_valueCheckedFlag;}
+  
+};
+#endif
 //! \}
 

branches/SHM-4.1-dev/source/Lib/TLibCommon/TypeDef.h

@@ -193 +193 @@
 
 #define VPS_DPB_SIZE_TABLE               1      ///< JCTVC-O0217: DPB operations: signaling DPB-related parameters
+#if VPS_DPB_SIZE_TABLE 
+#define OUTPUT_LAYER_SET_INDEX           1      ///< JCTVC-O0217: DPB operations: Inference/input of output layer set index
+#endif
 #else
 #define SYNTAX_OUTPUT                    0

branches/SHM-4.1-dev/source/Lib/TLibDecoder/TDecTop.cpp

@@ -694 +694 @@
 #if SVC_EXTENSION
   m_apcSlicePilot->setVPS( m_parameterSetManagerDecoder[m_layerId].getPrefetchedVPS(0) );
+#if OUTPUT_LAYER_SET_INDEX
+  // Following check should go wherever the VPS is activated
+  checkValueOfOutputLayerSetIdx( m_apcSlicePilot->getVPS());
+#endif
   m_apcSlicePilot->initSlice( nalu.m_layerId );
 #else
@@ -805 +809 @@
   }
 #endif 
-
 #if REPN_FORMAT_IN_VPS
   // Initialize ILRP if needed, only for the current layer  
@@ -1860 +1863 @@
 }
 #endif
-
+#if OUTPUT_LAYER_SET_INDEX
+Void TDecTop::checkValueOfOutputLayerSetIdx(TComVPS *vps)
+{
+  CommonDecoderParams* params = this->getCommonDecoderParams();
+  if( params->getValueCheckedFlag() )
+  {
+    return; // Already checked
+  }
+  if( params->getOutputLayerSetIdx() == -1 )  // Output layer set index not specified
+  {
+    Bool layerSetMatchFound = false;
+    // Output layer set index not assigned.
+    // Based on the value of targetLayerId, check if any of the output layer matches
+    // Currently, the target layer ID in the encoder assumes that all the layers are decoded    
+    // Check if any of the output layer sets match this description
+    for(Int i = 0; i < vps->getNumOutputLayerSets(); i++)
+    {
+      Bool layerSetMatchFlag = true;
+      Int layerSetIdx = vps->getOutputLayerSetIdx( i );
+      if( vps->getNumLayersInIdList( layerSetIdx ) == params->getTargetLayerId() + 1 )
+      {
+        for(Int j = 0; j < vps->getNumLayersInIdList( layerSetIdx ); j++)
+        {
+          if( vps->getLayerSetLayerIdList( layerSetIdx, j ) != j )
+          {
+            layerSetMatchFlag = false;
+            break;
+          }
+        }
+      }
+      else
+      {
+        layerSetMatchFlag = false;
+      }
+      
+      if( layerSetMatchFlag ) // Potential output layer set candidate found
+      {
+        // If target dec layer ID list is also included - check if they match
+        if( params->getTargetDecLayerIdSet() )
+        {
+          if( params->getTargetDecLayerIdSet()->size() )  
+          {
+            for(Int j = 0; j < vps->getNumLayersInIdList( layerSetIdx ); j++)
+            {
+              if( *(params->getTargetDecLayerIdSet()->begin() + j) != vps->getLayerIdInNuh(vps->getLayerSetLayerIdList( layerSetIdx, j )))
+              {
+                layerSetMatchFlag = false;
+              }
+            }
+          }
+        }
+        if( layerSetMatchFlag ) // The target dec layer ID list also matches, if present
+        {
+          // Match found
+          layerSetMatchFound = true;
+          params->setOutputLayerSetIdx( i );
+          params->setValueCheckedFlag( true );
+          break;
+        }
+      }
+    }
+    assert( layerSetMatchFound ); // No output layer set matched the value of either targetLayerId or targetdeclayerIdlist
+  }   
+  else // Output layer set index is assigned - check if the values match
+  {
+    // Check if the target decoded layer is the highest layer in the list
+    Int layerSetIdx = vps->getOutputLayerSetIdx( params->getOutputLayerSetIdx() );  // Index to the layer set
+    assert( params->getTargetLayerId() == vps->getNumLayersInIdList( layerSetIdx ) - 1);
+
+    Bool layerSetMatchFlag = true;
+    for(Int j = 0; j < vps->getNumLayersInIdList( layerSetIdx ); j++)
+    {
+      if( vps->getLayerSetLayerIdList( layerSetIdx, j ) != j )
+      {
+        layerSetMatchFlag = false;
+        break;
+      }
+    }
+
+    assert(layerSetMatchFlag);    // Signaled output layer set index does not match targetOutputLayerId.
+    
+    // Check if the targetdeclayerIdlist matches the output layer set
+    if( params->getTargetDecLayerIdSet() )
+    {
+      if( params->getTargetDecLayerIdSet()->size() )  
+      {
+        for(Int i = 0; i < vps->getNumLayersInIdList( layerSetIdx ); i++)
+        {
+          assert( *(params->getTargetDecLayerIdSet()->begin() + i) == vps->getLayerIdInNuh(vps->getLayerSetLayerIdList( layerSetIdx, i )));
+        }
+      }
+    }
+    params->setValueCheckedFlag( true );
+
+  }
+}
+#endif
 //! \}

branches/SHM-4.1-dev/source/Lib/TLibDecoder/TDecTop.h

@@ -134 +134 @@
   TComPic*                m_cIlpPic[MAX_NUM_REF];                    ///<  Inter layer Prediction picture =  upsampled picture
 #endif 
+#if OUTPUT_LAYER_SET_INDEX
+  CommonDecoderParams*    m_commonDecoderParams;
+#endif
 #if AVC_SYNTAX || SYNTAX_OUTPUT
   fstream*               m_pBLSyntaxFile;
@@ -240 +243 @@
   TComPic*  getMotionPredIlp(TComSlice* pcSlice);
 #endif
-
+public:
+#if OUTPUT_LAYER_SET_INDEX
+  CommonDecoderParams*    getCommonDecoderParams() { return m_commonDecoderParams; }
+  Void                    setCommonDecoderParams(CommonDecoderParams* x) { m_commonDecoderParams = x; }
+  Void      checkValueOfOutputLayerSetIdx(TComVPS *vps);
+#endif
 };// END CLASS DEFINITION TDecTop