HEVC學習（十六） SAO函式解析之四

void tencsampleadaptiveoffset::saocomponentparamdist(int allowmergeleft, int allowmergeup, saoparam *saoparam, int addr, int addrup, int addrleft, int ycbcr, double lambda, saolcuparam *compsaoparam, double *compdistortion)

if( currentrdcost < bestrdcosttablebo) //!< 更新最佳值 }

// re code all offsets

// code center

estdist = 0;

for(classidx = bestclasstablebo; classidx < bestclasstablebo+sao_bo_len; classidx++)

} //!< if( typeidx == sao_bo )

resetsaounit(&saolcuparamrdo);

saolcuparamrdo.length = m_inumclass[typeidx];

saolcuparamrdo.typeidx = typeidx;

saolcuparamrdo.mergeleftflag = 0;

saolcuparamrdo.mergeupflag = 0;

saolcuparamrdo.subtypeidx = (typeidx == sao_bo) ? bestclasstablebo : 0;

for (classidx = 0; classidx < saolcuparamrdo.length; classidx++)

m_pcrdgoonsbaccoder->load(m_pppcrdsbaccoder[0][ci_temp_best]);

m_pcrdgoonsbaccoder->resetbits();

m_pcentropycoder->encodesaooffset(&saolcuparamrdo, ycbcr);

estrate = m_pcentropycoder->getnumberofwrittenbits();

m_dcost[ycbcr][typeidx] = (double)((double)estdist + lambda * (double) estrate);

if(m_dcost[ycbcr][typeidx] < dcostpartbest) //!< 更新最佳值

} //!< for (typeidx=0; typeidxcompdistortion[0] += ((double)bestdist/lambda);

m_pcrdgoonsbaccoder->load(m_pppcrdsbaccoder[0][ci_temp_best]);

m_pcentropycoder->encodesaooffset(saolcuparam, ycbcr);

m_pcrdgoonsbaccoder->store( m_pppcrdsbaccoder[0][ci_temp_best] );

// merge left or merge up

for (int idxneighbor=0;idxneighbor<2;idxneighbor++)

else

if (allowmergeup && addrup>=0 && idxneighbor ==1) //!< 上鄰塊可用

if (saolcuparamneighbor!=null) }

else

copysaounit(&compsaoparam[idxneighbor], saolcuparamneighbor );

compsaoparam[idxneighbor].mergeupflag = idxneighbor;

compsaoparam[idxneighbor].mergeleftflag = !idxneighbor;

compdistortion[idxneighbor+1] += ((double)estdist/lambda);

} } }

void tencsampleadaptiveoffset::saocomponentparamdist(int allowmergeleft, int allowmergeup, saoparam *saoparam, int addr, int addrup, int addrleft, int ycbcr, double lambda, saolcuparam *compsaoparam, double *compdistortion)

} //!< for (typeidx=0; typeidxload(m_pppcrdsbaccoder[0][ci_temp_best]);
m_pcentropycoder->encodesaooffset(saolcuparam, ycbcr);
m_pcrdgoonsbaccoder->store( m_pppcrdsbaccoder[0][ci_temp_best] );
// merge left or merge up
for (int idxneighbor=0;idxneighbor<2;idxneighbor++) 
else if (allowmergeup && addrup>=0 && idxneighbor ==1) //!< 上鄰塊可用
if (saolcuparamneighbor!=null)
}else
copysaounit(&compsaoparam[idxneighbor], saolcuparamneighbor );
compsaoparam[idxneighbor].mergeupflag   = idxneighbor;
compsaoparam[idxneighbor].mergeleftflag = !idxneighbor;
compdistortion[idxneighbor+1] += ((double)estdist/lambda);
} } 
}

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