void CCoder::SetProps(const CEncProps *props2)
{
CEncProps props = *props2;
props.Normalize();
m_MatchFinderCycles = props.mc;
{
unsigned fb = props.fb;
if (fb < kMatchMinLen)
fb = kMatchMinLen;
if (fb > m_MatchMaxLen)
fb = m_MatchMaxLen;
m_NumFastBytes = fb;
}
_fastMode = (props.algo == 0);
_btMode = (props.btMode != 0);
m_NumDivPasses = props.numPasses;
if (m_NumDivPasses == 0)
m_NumDivPasses = 1;
if (m_NumDivPasses == 1)
m_NumPasses = 1;
else if (m_NumDivPasses <= kNumDivPassesMax)
m_NumPasses = 2;
else
{
m_NumPasses = 2 + (m_NumDivPasses - kNumDivPassesMax);
m_NumDivPasses = kNumDivPassesMax;
}
}
STDMETHODIMP CEncoder::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *coderProps, UInt32 numProps)
{
int level = -1;
CEncProps props;
for (UInt32 i = 0; i < numProps; i++)
{
const PROPVARIANT &prop = coderProps[i];
PROPID propID = propIDs[i];
if (propID > NCoderPropID::kReduceSize)
continue;
if (propID == NCoderPropID::kReduceSize)
{
if (prop.vt == VT_UI8 && prop.uhVal.QuadPart < (UInt32)(Int32)-1)
props.ReduceSize = (UInt32)prop.uhVal.QuadPart;
continue;
}
if (prop.vt != VT_UI4)
return E_INVALIDARG;
UInt32 v = (UInt32)prop.ulVal;
switch (propID)
{
case NCoderPropID::kUsedMemorySize:
if (v < (1 << 16) || v > PPMD7_MAX_MEM_SIZE || (v & 3) != 0)
return E_INVALIDARG;
props.MemSize = v;
break;
case NCoderPropID::kOrder:
if (v < 2 || v > 32)
return E_INVALIDARG;
props.Order = (Byte)v;
break;
case NCoderPropID::kNumThreads: break;
case NCoderPropID::kLevel: level = (int)v; break;
default: return E_INVALIDARG;
}
}
props.Normalize(level);
_props = props;
return S_OK;
}