📄 mc.cpp
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ppxlcSrc += 8;
ppxlcSrc2 += 8;
}
ppxlcRef += m_iFrameWidthY;
ppxlcPred += MB_SIZE;
}
}
}
}
else {
if (!(yRef & 1)) {
if (!(xRef & 1)) { //!bXSubPxl && !bYSubPxl
for (iy = 0; iy < iSize; iy++) {
memcpy (ppxlcPred, ppxlcRef, iSize*sizeof(PixelC));
ppxlcRef += m_iFrameWidthY;
// RRV modification
ppxlcPred += (m_vopmd.RRVmode.iRRVOnOff == 1) ? (iSize) : (MB_SIZE);
// ppxlcPred += MB_SIZE;
// ~RRV
}
}
else { //bXSubPxl && !bYSubPxl
for (iy = 0; iy < iSize; iy++){
for (ix = 0; ix < iSize; ix++)
ppxlcPred [ix] = (ppxlcRef [ix] + ppxlcRef [ix + 1] + 1 - iRoundingControl) >> 1;
ppxlcRef += m_iFrameWidthY;
// RRV modification
ppxlcPred += (m_vopmd.RRVmode.iRRVOnOff == 1) ? (iSize) : (MB_SIZE);
// ppxlcPred += MB_SIZE;
// ~RRV
}
}
}
else {
const PixelC* ppxlcRefBot;
if (!(xRef & 1)) { //!bXSubPxl&& bYSubPxl
for (iy = 0; iy < iSize; iy++) {
ppxlcRefBot = ppxlcRef + m_iFrameWidthY; //UPln -> pixels (xInt,yInt+1);
for (ix = 0; ix < iSize; ix++)
ppxlcPred [ix] = (ppxlcRef [ix] + ppxlcRefBot [ix] + 1 - iRoundingControl) >> 1;
ppxlcRef = ppxlcRefBot;
// RRV modification
ppxlcPred += (m_vopmd.RRVmode.iRRVOnOff == 1) ? (iSize) : (MB_SIZE);
// ppxlcPred += MB_SIZE;
// ~RRV
}
}
else { // bXSubPxl && bYSubPxl
for (iy = 0; iy < iSize; iy++) {
ppxlcRefBot = ppxlcRef + m_iFrameWidthY; //UPln -> pixels (xInt,yInt+1);
for (ix = 0; ix < iSize; ix++){
ppxlcPred [ix] = (
ppxlcRef [ix + 1] + ppxlcRef [ix] +
ppxlcRefBot [ix + 1] + ppxlcRefBot [ix] + 2 - iRoundingControl
) >> 2;
}
ppxlcRef = ppxlcRefBot;
// RRV modification
ppxlcPred += (m_vopmd.RRVmode.iRRVOnOff == 1) ? (iSize) : (MB_SIZE);
// ppxlcPred += MB_SIZE;
// ~RRV
}
}
}
}
}
Void CVideoObject::motionCompQuarterSample (
PixelC* ppxlcPred, // can be either Y or A
const PixelC* ppxlcRefLeftTop, // point to left-top of the frame
Int iSize, // either MB or BLOCK size
CoordI xRef, CoordI yRef, // x + mvX in quarter pel unit
Int iRoundingControl, // rounding control
CRct *prctMVLimit // extended bounding box
)
{
CoordI ix, iy;
U8 *ppxlcblk;
limitMVRangeToExtendedBBQuarterPel(xRef,yRef,prctMVLimit,iSize);
Int blkSizeX, blkSizeY;
if (iSize == 0) { // INTERLACED
blkSizeX = 16;
blkSizeY = 8;
ppxlcblk = (U8*) calloc(blkSizeX*blkSizeX,sizeof(U8));
blkInterpolateY (ppxlcRefLeftTop,iSize,xRef,yRef,ppxlcblk,iRoundingControl);
for (iy = 0; iy < blkSizeX; iy++) {
if (!(iy&1))
for (ix = 0; ix < blkSizeX; ix++) {
ppxlcPred [ix] = *(ppxlcblk+ix+iy*blkSizeX);
}
ppxlcPred += blkSizeX;
}
} //~INTERLACED
else {
blkSizeX = iSize;
blkSizeY = iSize;
ppxlcblk = (U8*) calloc(blkSizeX*blkSizeX,sizeof(U8));
blkInterpolateY (ppxlcRefLeftTop,iSize,xRef,yRef,ppxlcblk,iRoundingControl);
for (iy = 0; iy < blkSizeX; iy++) {
for (ix = 0; ix < blkSizeX; ix++) {
ppxlcPred [ix] = *(ppxlcblk+ix+iy*blkSizeX);
}
ppxlcPred += MB_SIZE;
}
}
free(ppxlcblk);
}
Void CVideoObject::motionCompDirectMode( // Interlaced direct mode
CoordI x, CoordI y,
CMBMode *pmbmd,
const CMotionVector *pmvRef,
CRct *prctMVLimitFwd, CRct *prctMVLimitBak,
Int plane // plane=1 for grey scale, plane=0 for texture, 02-17-99
)
{
Int* rgiMvRound;
UInt uiDivisor = 0;
Int xRefUVF,yRefUVF,xRefUVB,yRefUVB;
// begin of new changes 10/21/98
Int iMBX,iMBY;
const CMBMode *pmbmdRef;
if(m_volmd.fAUsage != RECTANGLE)
{
iMBX=(x-m_rctCurrVOPY.left)/MB_SIZE;
iMBY=(y-m_rctCurrVOPY.top)/MB_SIZE;
pmbmdRef= m_rgmbmdRef +
(iMBX+iMBY*m_iNumMBXRef);
}
else
{
iMBX=x/MB_SIZE;
iMBY=y/MB_SIZE;
pmbmdRef= m_rgmbmdRef +
iMBX+iMBY*m_iNumMBXRef;
}
// end of new changes 10/21/98
if (pmbmdRef->m_rgTranspStatus[0]==ALL) {
static CMotionVector mvZero[5];
pmvRef = mvZero;
}
if ((iMBX<m_iNumMBXRef && iMBX>=0 && iMBY<m_iNumMBYRef && iMBY>=0)&& // new change 10/21/98
(pmbmdRef->m_bFieldMV&&pmbmdRef->m_rgTranspStatus[0]!=ALL)) {
static I8 iTROffsetTop[] = { 0, 0, 1, 1, 0, 0, -1, -1 };
static I8 iTROffsetBot[] = { -1, 0, -1, 0, 1, 0, 1, 0 };
CoordI iXFwdTop, iXFwdBot, iXBakTop, iXBakBot;
CoordI iYFwdTop, iYFwdBot, iYBakTop, iYBakBot;
CoordI iXFTQSUV, iXFBQSUV, iXBTQSUV, iXBBQSUV;
CoordI iYFTQSUV, iYFBQSUV, iYBTQSUV, iYBBQSUV;
const CMotionVector *pmvRefTop, *pmvRefBot;
Int iTopRefFldOffset = 0, iBotRefFldOffset = 0;
Int iCode = (Int)(vopmd().bTopFieldFirst) << 2;
pmbmd->m_bFieldMV = 1; // set field direct mode for grey scale, Krit 02-17-99
assert((pmbmdRef->m_dctMd != INTRA) && (pmbmdRef->m_dctMd != INTRAQ));
if (pmbmdRef->m_bForwardTop) {
iCode |= 2;
iTopRefFldOffset = 1;
pmvRefTop = pmvRef + 6;
} else
pmvRefTop = pmvRef + 5;
if (pmbmdRef->m_bForwardBottom) {
iCode |= 1;
iBotRefFldOffset = 1;
pmvRefBot = pmvRef + 8;
} else
pmvRefBot = pmvRef + 7;
Int iTempRefDTop = 2*(m_tFutureRef - m_tPastRef) + iTROffsetTop[iCode];
Int iTempRefDBot = 2*(m_tFutureRef - m_tPastRef) + iTROffsetBot[iCode];
Int iTempRefBTop = 2*(m_t - m_tPastRef) + iTROffsetTop[iCode];
Int iTempRefBBot = 2*(m_t - m_tPastRef) + iTROffsetBot[iCode];
assert(iTempRefDTop > 0); assert(iTempRefDBot > 0); assert(iTempRefBTop > 0); assert(iTempRefBBot > 0);
// Find MVs for the top field
iXFwdTop = (pmvRefTop->m_vctTrueHalfPel.x * iTempRefBTop) / iTempRefDTop + pmbmd->m_vctDirectDeltaMV.x;
iYFwdTop = (pmvRefTop->m_vctTrueHalfPel.y * iTempRefBTop) / iTempRefDTop + pmbmd->m_vctDirectDeltaMV.y;
iXBakTop = pmbmd->m_vctDirectDeltaMV.x ? (iXFwdTop - pmvRefTop->m_vctTrueHalfPel.x) :
((pmvRefTop->m_vctTrueHalfPel.x * (iTempRefBTop - iTempRefDTop)) / iTempRefDTop);
iYBakTop = pmbmd->m_vctDirectDeltaMV.y ? (iYFwdTop - pmvRefTop->m_vctTrueHalfPel.y) :
((pmvRefTop->m_vctTrueHalfPel.y * (iTempRefBTop - iTempRefDTop)) / iTempRefDTop);
// Find MVs for the bottom field
iXFwdBot = (pmvRefBot->m_vctTrueHalfPel.x * iTempRefBBot) / iTempRefDBot + pmbmd->m_vctDirectDeltaMV.x;
iYFwdBot = (pmvRefBot->m_vctTrueHalfPel.y * iTempRefBBot) / iTempRefDBot + pmbmd->m_vctDirectDeltaMV.y;
iXBakBot = pmbmd->m_vctDirectDeltaMV.x ? (iXFwdBot - pmvRefBot->m_vctTrueHalfPel.x) :
((pmvRefBot->m_vctTrueHalfPel.x * (iTempRefBBot - iTempRefDBot)) / iTempRefDBot);
iYBakBot = pmbmd->m_vctDirectDeltaMV.y ? (iYFwdBot - pmvRefBot->m_vctTrueHalfPel.y) :
((pmvRefBot->m_vctTrueHalfPel.y * (iTempRefBBot - iTempRefDBot)) / iTempRefDBot);
// Motion compensate the top field forward
if (m_volmd.bQuarterSample) {
iXFTQSUV = iXFwdTop/2;
iYFTQSUV = iYFwdTop/2;
iXBTQSUV = iXBakTop/2;
iYBTQSUV = iYBakTop/2;
iXFBQSUV = iXFwdBot/2;
iYFBQSUV = iYFwdBot/2;
iXBBQSUV = iXBakBot/2;
iYBBQSUV = iYBakBot/2;
iYFwdTop = iYFwdTop & ~1;
iYBakTop = iYBakTop & ~1;
iYFwdBot = iYFwdBot & ~1;
iYBakBot = iYBakBot & ~1;
iXFwdTop += 4*x; iYFwdTop += 4*y;
// limitMVRangeToExtendedBBQuarterPel(iXFwdTop, iYFwdTop, prctMVLimitFwd, MB_SIZE); // deleted by Y.Suzuki for the extended bounding box support
if (plane==0) { // texture MC
motionCompQuarterSample(m_ppxlcPredMBY,
m_pvopcRefQ0->pixelsY() + iTopRefFldOffset * m_iFrameWidthY, 0,
iXFwdTop, iYFwdTop, m_vopmd.iRoundingControl, prctMVLimitFwd);
// iXFTQSUV += 2*x; iYFTQSUV += 2*y; // deleted by Y.Suzuki for the extended bounding box support
// limitMVRangeToExtendedBBHalfPel(iXFTQSUV, iYFTQSUV, prctMVLimitFwd, MB_SIZE); // deleted by Y.Suzuki for the extended bounding box support
// iXFTQSUV -= 2*x; iYFTQSUV -= 2*y; // deleted by Y.Suzuki for the extended bounding box support
motionCompFieldUV(m_ppxlcPredMBU, m_ppxlcPredMBV, m_pvopcRefQ0, x, y,
(iXFTQSUV & 3) ? ((iXFTQSUV >> 1) | 1) : (iXFTQSUV >> 1),
(iYFTQSUV & 6) ? ((iYFTQSUV >> 1) | 2) : (iYFTQSUV >> 1),
iTopRefFldOffset,
prctMVLimitFwd); // added by Y.Suzuki for the extended bounding box support
}
else { // plane=1, grey scale MC
for(Int iAuxComp=0;iAuxComp<m_volmd.iAuxCompCount;iAuxComp++) { // MAC (SB) 26-Nov-99
motionCompQuarterSample(m_ppxlcPredMBA[iAuxComp],
m_pvopcRefQ0->pixelsA(iAuxComp) + iTopRefFldOffset * m_iFrameWidthY, 0,
iXFwdTop, iYFwdTop, m_vopmd.iRoundingControl, prctMVLimitFwd);
}
}
}
else {
iXFwdTop += 2*x; iYFwdTop += 2*y;
// limitMVRangeToExtendedBBHalfPel(iXFwdTop, iYFwdTop, prctMVLimitFwd, MB_SIZE); // deleted by Y.Suzuki for the extended bounding box support
if (plane==0) { // texture MC
motionCompYField(m_ppxlcPredMBY,
m_pvopcRefQ0->pixelsY() + iTopRefFldOffset * m_iFrameWidthY, iXFwdTop, iYFwdTop,
prctMVLimitFwd); // added by Y.Suzuki for the extended bounding box support
iXFwdTop -= 2*x; iYFwdTop -= 2*y;
motionCompFieldUV(m_ppxlcPredMBU, m_ppxlcPredMBV, m_pvopcRefQ0, x, y,
(iXFwdTop & 3) ? ((iXFwdTop >> 1) | 1) : (iXFwdTop >> 1),
(iYFwdTop & 6) ? ((iYFwdTop >> 1) | 2) : (iYFwdTop >> 1), iTopRefFldOffset,
prctMVLimitFwd); // added by Y.Suzuki for the extended bounding box support
}
else { // plane=1, grey scale MC
for(Int iAuxComp=0;iAuxComp<m_volmd.iAuxCompCount;iAuxComp++) { // MAC (SB) 26-Nov-99
motionCompYField(m_ppxlcPredMBA[iAuxComp],
m_pvopcRefQ0->pixelsA(iAuxComp) + iTopRefFldOffset * m_iFrameWidthY, iXFwdTop, iYFwdTop,
prctMVLimitFwd); // added by Y.Suzuki for the extended bounding box support
}
iXFwdTop -= 2*x; iYFwdTop -= 2*y;
}
}
// Motion compensate the top field backward
if (m_volmd.bQuarterSample) {
iXBakTop += 4*x; iYBakTop += 4*y;
// limitMVRangeToExtendedBBQuarterPel(iXBakTop, iYBakTop, prctMVLimitFwd, MB_SIZE); // deleted by Y.Suzuki for the extended bounding box support
if (plane==0) { // texture MC
motionCompQuarterSample(m_ppxlcPredMBBackY,
m_pvopcRefQ1->pixelsY(), 0,
iXBakTop, iYBakTop, m_vopmd.iRoundingControl, prctMVLimitBak);
// iXBTQSUV += 2*x; iYBTQSUV += 2*y; // deleted by Y.Suzuki for the extended bounding box support
// limitMVRangeToExtendedBBHalfPel(iXBTQSUV, iYBTQSUV, prctMVLimitBak, MB_SIZE); // deleted by Y.Suzuki for the extended bounding box support
// iXBTQSUV -= 2*x; iYBTQSUV -= 2*y; // deleted by Y.Suzuki for the extended bounding box support
motionCompFieldUV(m_ppxlcPredMBBackU, m_ppxlcPredMBBackV, m_pvopcRefQ1, x, y,
(iXBTQSUV & 3) ? ((iXBTQSUV >> 1) | 1) : (iXBTQSUV >> 1),
(iYBTQSUV & 6) ? ((iYBTQSUV >> 1) | 2) : (iYBTQSUV >> 1),
0,
prctMVLimitBak); // added by Y.Suzuki for the extended bounding box support
}
else { // plane=1, grey scale MC
for(Int iAuxComp=0;iAuxComp<m_volmd.iAuxCompCount;iAuxComp++) { // MAC (SB) 26-Nov-99
motionCompQuarterSample(m_ppxlcPredMBBackA[iAuxComp],
m_pvopcRefQ1->pixelsA(iAuxComp), 0,
iXBakTop, iYBakTop, m_vopmd.iRoundingControl, prctMVLimitBak);
}
}
}
else {
iXBakTop += 2*x; iYBakTop += 2*y;
// limitMVRangeToExtendedBBHalfPel(iXBakTop, iYBakTop, prctMVLimitBak, MB_SIZE); // deleted by Y.Suzuki for the extended bounding box support
if (plane==0) { // texture MC
motionCompYField(m_ppxlcPredMBBackY, m_pvopcRefQ1->pixelsY(), iXBakTop, iYBakTop,
prctMVLimitBak); // added by Y.Suzuki for the extended bounding box support
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