Void CVTCCommon::markCoeff(Int x, Int y, UChar valuedDes, Int c)
{
if (COEFF_STATE(x,y,c) == S_INIT || COEFF_STATE(x,y,c) == S_ZTR
|| COEFF_STATE(x,y,c) == S_ZTR_D)
{
if (COEFF_VAL(x,y,c))
{
if (valuedDes)
COEFF_TYPE(x,y,c) = VAL;
else
COEFF_TYPE(x,y,c) = VZTR;
}
else
{
if (valuedDes)
COEFF_TYPE(x,y,c) = IZ;
else
COEFF_TYPE(x,y,c) = ZTR;
}
}
else if (COEFF_STATE(x,y,c) == S_IZ)
{
if (COEFF_VAL(x,y,c))
COEFF_TYPE(x,y,c) = VAL;
else
COEFF_TYPE(x,y,c) = IZ;
}
else if (COEFF_STATE(x,y,c) == S_VZTR)
{
if (valuedDes)
COEFF_TYPE(x,y,c) = VAL;
else
COEFF_TYPE(x,y,c) = VZTR;
}
else if (COEFF_STATE(x,y,c) == S_VAL)
{
COEFF_TYPE(x,y,c) = VAL;
}
else if (COEFF_STATE(x,y,c) == S_LINIT || COEFF_STATE(x,y,c) == S_LZTR
|| COEFF_STATE(x,y,c) == S_LZTR_D)
{
if (COEFF_VAL(x,y,c))
COEFF_TYPE(x,y,c) = VZTR;
else
COEFF_TYPE(x,y,c) = ZTR;
}
else /* if (COEFF_STATE(x,y,c) == S_LVZTR) */
COEFF_TYPE(x,y,c) = VZTR;
}
Void CVTCDecoder::iQuantizeCoeff(Int x, Int y, Int c)
{
Int dumQ=0;
/* assign new quantization value - update quant state */
if (mzte_codec.m_iQuantType == MULTIPLE_Q)
COEFF_RECVAL(x,y,c) =
invQuantSingleStage(COEFF_VAL(x,y,c), USER_Q(c), &COEFF_QSTATE(x,y,c),
&prevQList2[c][coordToSpatialLev(x,y,c)], 0);
else if (mzte_codec.m_iQuantType == SINGLE_Q)
COEFF_RECVAL(x,y,c) =
invQuantSingleStage(COEFF_VAL(x,y,c), USER_Q(c), &COEFF_QSTATE(x,y,c),
&dumQ, 0);
}
Int CVTCDecoder::decIQuantizeDC(Int c)
{
Int err;
Int x, y;
err=0;
/* loop through DC */
noteDetail("Inverse Quantizing DC band....");
for (x = 0; x < mzte_codec.m_iDCWidth; ++x)
for (y = 0; y < mzte_codec.m_iDCHeight; ++y)
{
/* assign new quantization value */
COEFF_RECVAL(x,y,c) = COEFF_VAL(x,y,c) * mzte_codec.m_iQDC[c];
}
noteDetail("Completed inverse Quantizing DC bands.");
return err;
}