internal SEE2Context makeEscFreq(ModelPPM model, int numMasked, out int escFreq)
{
SEE2Context psee2c;
int numStats = NumStats;
int nonMasked = numStats - numMasked;
if (numStats != 256)
{
PPMContext suff = getTempPPMContext(model.Heap);
suff.Address = getSuffix();
int idx1 = model.getNS2Indx()[nonMasked - 1];
int idx2 = 0;
idx2 += ((nonMasked < suff.NumStats - numStats) ? 1 : 0);
idx2 += 2 * ((freqData.SummFreq < 11 * numStats) ? 1 : 0);
idx2 += 4 * ((numMasked > nonMasked) ? 1 : 0);
idx2 += model.HiBitsFlag;
psee2c = model.getSEE2Cont()[idx1][idx2];
escFreq = psee2c.Mean;
}
else
{
psee2c = model.DummySEE2Cont;
escFreq = 1;
}
return(psee2c);
}
private SEE2Context makeEscFreq2(ModelPPM model, int Diff)
{
SEE2Context psee2c;
int numStats = NumStats;
if (numStats != 256)
{
PPMContext suff = getTempPPMContext(model.Heap);
suff.Address = getSuffix();
int idx1 = model.getNS2Indx()[Diff - 1];
int idx2 = 0;
idx2 += ((Diff < suff.NumStats - numStats) ? 1 : 0);
idx2 += 2 * ((freqData.SummFreq < 11 * numStats) ? 1 : 0);
idx2 += 4 * ((model.NumMasked > Diff) ? 1 : 0);
idx2 += model.HiBitsFlag;
psee2c = model.getSEE2Cont()[idx1][idx2];
model.Coder.SubRange.Scale = psee2c.Mean;
}
else
{
psee2c = model.DummySEE2Cont;
model.Coder.SubRange.Scale = 1;
}
return(psee2c);
}