public MicroString(EncodedFlow encFlow, ValueFlowCoder vfc)
{
_encFlow = encFlow;
_targets = encFlow.Targets;
_vfc = vfc;
if (_encFlow.NumSymbols == 0)
{
SelWidth = 0;
}
else
{
SelWidth = MathExt.CeilLog2(_encFlow.NumSymbols);
}
}
public MergedFlow(EncodedFlow encFlow0, EncodedFlow encFlow1)
{
Debug.Assert(encFlow0.NumSymbols > 1);
Debug.Assert(encFlow1.NumSymbols > 1);
_encFlow0 = encFlow0;
_encFlow1 = encFlow1;
Targets = encFlow0.Targets.Concat(encFlow1.Targets).ToArray();
int[] encMap0, encMap1;
EncodedSymbols = MicrocodeAlgorithms.EncodeTogether(
encFlow0.EncodedSymbols, encFlow0.NumSymbols,
encFlow1.EncodedSymbols, encFlow1.NumSymbols,
out encMap0, out encMap1);
_encMap0 = encMap0;
_encMap1 = encMap1;
NumSymbols = _encMap0.Length;
Score = MathExt.CeilLog2(encFlow0.NumSymbols) +
MathExt.CeilLog2(encFlow1.NumSymbols) -
Math.Log(NumSymbols, 2.0);
}
public MicroString(EncodedFlow encFlow, ValueFlowCoder vfc)
{
_encFlow = encFlow;
_targets = encFlow.Targets;
_vfc = vfc;
if (_encFlow.NumSymbols == 0)
SelWidth = 0;
else
SelWidth = MathExt.CeilLog2(_encFlow.NumSymbols);
}
public MergedFlow(EncodedFlow encFlow0, EncodedFlow encFlow1)
{
Debug.Assert(encFlow0.NumSymbols > 1);
Debug.Assert(encFlow1.NumSymbols > 1);
_encFlow0 = encFlow0;
_encFlow1 = encFlow1;
Targets = encFlow0.Targets.Concat(encFlow1.Targets).ToArray();
int[] encMap0, encMap1;
EncodedSymbols = MicrocodeAlgorithms.EncodeTogether(
encFlow0.EncodedSymbols, encFlow0.NumSymbols,
encFlow1.EncodedSymbols, encFlow1.NumSymbols,
out encMap0, out encMap1);
_encMap0 = encMap0;
_encMap1 = encMap1;
NumSymbols = _encMap0.Length;
Score = MathExt.CeilLog2(encFlow0.NumSymbols) +
MathExt.CeilLog2(encFlow1.NumSymbols) -
Math.Log(NumSymbols, 2.0);
}
