Changeset 610 in SHVCSoftware for branches/SHM-5.1-dev

Timestamp:

7 Feb 2014, 23:30:56 (11 years ago)

Author:

qualcomm

Message:

Set MAX_TLAYER to 7 and infer values of DPB size syntax elements.

The value of MAX_TLAYER should be 7 and not 8, because there are at most 7 temporal layers (Related HM ticket 1239). The values of syntax elements of the DPB size table are inferred when they are not signaled.

From: Adarsh K. Ramasubramonian <aramasub@…>

Location:

branches/SHM-5.1-dev/source

Files:

• App/TAppEncoder/TAppEncCfg.cpp (modified) (1 diff)
• Lib/TLibCommon/CommonDef.h (modified) (1 diff)
• Lib/TLibCommon/TComSlice.h (modified) (1 diff)
• Lib/TLibDecoder/TDecCAVLC.cpp (modified) (2 diffs)

branches/SHM-5.1-dev/source/App/TAppEncoder/TAppEncCfg.cpp

@@ -714 +714 @@
   ("LambdaModifier5,-LM5", m_adLambdaModifier[ 5 ], ( Double )1.0, "Lambda modifier for temporal layer 5")
   ("LambdaModifier6,-LM6", m_adLambdaModifier[ 6 ], ( Double )1.0, "Lambda modifier for temporal layer 6")
-  ("LambdaModifier7,-LM7", m_adLambdaModifier[ 7 ], ( Double )1.0, "Lambda modifier for temporal layer 7")
 #endif
 

branches/SHM-5.1-dev/source/Lib/TLibCommon/CommonDef.h

@@ -178 +178 @@
 
 // Explicit temporal layer QP offset
-#define MAX_TLAYER                  8           ///< max number of temporal layer
+#define MAX_TLAYER                  7           ///< max number of temporal layer
 #define HB_LAMBDA_FOR_LDC           1           ///< use of B-style lambda for non-key pictures in low-delay mode
 

branches/SHM-5.1-dev/source/Lib/TLibCommon/TComSlice.h

@@ -231 +231 @@
 {
   ProfileTierLevel m_generalPTL;
-  ProfileTierLevel m_subLayerPTL[6];      // max. value of max_sub_layers_minus1 is 6
-  Bool m_subLayerProfilePresentFlag[6];
-  Bool m_subLayerLevelPresentFlag[6];
+  ProfileTierLevel m_subLayerPTL    [MAX_TLAYER-1];      // max. value of max_sub_layers_minus1 is MAX_TLAYER-1 ( = 6 )
+  Bool m_subLayerProfilePresentFlag [MAX_TLAYER-1];
+  Bool m_subLayerLevelPresentFlag   [MAX_TLAYER-1];
 
 public:

branches/SHM-5.1-dev/source/Lib/TLibDecoder/TDecCAVLC.cpp

@@ -850 +850 @@
   READ_CODE( 6,  uiCode,  "vps_reserved_zero_6bits" );            assert(uiCode == 0);
 #endif
-  READ_CODE( 3,  uiCode,  "vps_max_sub_layers_minus1" );          pcVPS->setMaxTLayers( uiCode + 1 );
+  READ_CODE( 3,  uiCode,  "vps_max_sub_layers_minus1" );          pcVPS->setMaxTLayers( uiCode + 1 ); assert(uiCode <= 6);
   READ_FLAG(     uiCode,  "vps_temporal_id_nesting_flag" );       pcVPS->setTemporalNestingFlag( uiCode ? true:false );
   assert (pcVPS->getMaxTLayers()>1||pcVPS->getTemporalNestingFlag());
@@ -1673 +1673 @@
 #endif
         READ_UVLC( uiCode, "max_vps_latency_increase_plus1[i][j]" );        vps->setMaxVpsLatencyIncreasePlus1( i, j, uiCode);
+      }
+    }
+    for(Int j = vps->getMaxTLayers(); j < MAX_TLAYER; j++)
+    {
+      vps->setSubLayerDpbInfoPresentFlag( i, j, false );
+    }
+  }
+
+  // Infer values when not signalled
+  for(Int i = 1; i < vps->getNumOutputLayerSets(); i++)
+  {
+    Int layerSetIdxForOutputLayerSet = vps->getOutputLayerSetIdx( i );
+    for(Int j = 0; j < MAX_TLAYER; j++)
+    {
+      if( !vps->getSubLayerDpbInfoPresentFlag(i, j) )  // If sub-layer DPB information is NOT present
+      {
+        for(Int k = 0; k < vps->getNumSubDpbs(layerSetIdxForOutputLayerSet); k++)
+        {
+          vps->setMaxVpsDecPicBufferingMinus1( i, k, j, vps->getMaxVpsDecPicBufferingMinus1( i, k, j - 1 ) );
+        }
+        vps->setMaxVpsNumReorderPics( i, j, vps->getMaxVpsNumReorderPics( i, j - 1) );
+        for(Int k = 0; k < vps->getNumLayersInIdList( layerSetIdxForOutputLayerSet ); k++)
+        {
+          vps->setMaxVpsLayerDecPicBuffMinus1( i, k, j, vps->getMaxVpsLayerDecPicBuffMinus1( i, k, j - 1));
+        }
+        vps->setMaxVpsLatencyIncreasePlus1( i, j, vps->getMaxVpsLatencyIncreasePlus1( i, j - 1 ) );
       }
     }