?? mbenc.cpp
字號:
codeMBTextureHeadOfBVOP (pmbmd);
if (!pmbmd -> m_bSkip) {
m_statsMB.nBitsMV += encodeMVofBVOP (pmv, pmvBackward, pmbmd,
iMBX, iMBY, pmvRef, pmbmdRef); // need to see the MB type to decide what MV to be sent
sendDCTCoefOfInterMBTexture (pmbmd);
//addErrorAndPredToCurrQ (ppxlcCurrQMBY, ppxlcCurrQMBU, ppxlcCurrQMBV); // delete by Hyundai, ok swinder
}
else
assignPredToCurrQ (ppxlcCurrQMBY, ppxlcCurrQMBU, ppxlcCurrQMBV);
if (m_volmd.fAUsage == EIGHT_BIT) {
codeMBAlphaHeadOfBVOP (pmbmd);
if (pmbmd -> m_CODAlpha == ALPHA_CODED) {
sendDCTCoefOfInterMBAlpha (pmbmd);
//addAlphaErrorAndPredToCurrQ (ppxlcCurrQMBA); // delete by Hyundai, ok swinder
}
else if(pmbmd -> m_CODAlpha == ALPHA_SKIPPED)
assignAlphaPredToCurrQ (ppxlcCurrQMBA);
}
/*BBM// Added for Boundary by Hyundai(1998-5-9)
if (m_vopmd.bInterlace && pmbmd -> m_bMerged[0])
mergedMacroBlockSplit (pmbmd);
// End of Hyundai(1998-5-9)*/
if (!pmbmd -> m_bSkip)
addErrorAndPredToCurrQ (ppxlcCurrQMBY, ppxlcCurrQMBU, ppxlcCurrQMBV);
if (m_volmd.fAUsage == EIGHT_BIT && pmbmd -> m_CODAlpha == ALPHA_CODED)
addAlphaErrorAndPredToCurrQ (ppxlcCurrQMBA);
}
}
Void CVideoObjectEncoder::codeMBTextureHeadOfIVOP (const CMBMode* pmbmd)
{
UInt CBPC = (pmbmd->getCodedBlockPattern (U_BLOCK) << 1)
| pmbmd->getCodedBlockPattern (V_BLOCK);
//per defintion of H.263's CBPC
assert (CBPC >= 0 && CBPC <= 3);
Int CBPY = 0;
UInt cNonTrnspBlk = 0, iBlk;
for (iBlk = (UInt) Y_BLOCK1; iBlk <= (UInt) Y_BLOCK4; iBlk++) {
if (pmbmd->m_rgTranspStatus [iBlk] != ALL)
cNonTrnspBlk++;
}
UInt iBitPos = 1;
for (iBlk = (UInt) Y_BLOCK1; iBlk <= (UInt) Y_BLOCK4; iBlk++) {
if (pmbmd->m_rgTranspStatus [iBlk] != ALL) {
CBPY |= pmbmd->getCodedBlockPattern ((BlockNum) iBlk) << (cNonTrnspBlk - iBitPos);
iBitPos++;
}
}
assert (CBPY >= 0 && CBPY <= 15); //per defintion of H.263's CBPY
Int iSymbol = 4 * pmbmd->m_dctMd + CBPC;
assert (iSymbol >= 0 && iSymbol <= 7); //send MCBPC
#ifdef __TRACE_AND_STATS_
m_pbitstrmOut->trace (iSymbol, "MB_MCBPC");
#endif // __TRACE_AND_STATS_
m_statsMB.nBitsMCBPC += m_pentrencSet->m_pentrencMCBPCintra->encodeSymbol (iSymbol, "MB_MCBPC");
//fprintf(stderr,"MCBPC = %d\n",iSymbol);
m_pbitstrmOut->putBits (pmbmd->m_bACPrediction, 1, "MB_ACPRED");
m_statsMB.nBitsIntraPred++;
//fprintf(stderr,"ACPred = %d\n",pmbmd->m_bACPrediction);
#ifdef __TRACE_AND_STATS_
m_pbitstrmOut->trace (cNonTrnspBlk, "MB_NumNonTranspBlks");
m_pbitstrmOut->trace (CBPY, "MB_CBPY (I-style)");
#endif // __TRACE_AND_STATS_
switch (cNonTrnspBlk) {
case 1:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY1->encodeSymbol (CBPY, "MB_CBPY");
break;
case 2:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY2->encodeSymbol (CBPY, "MB_CBPY");
break;
case 3:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY3->encodeSymbol (CBPY, "MB_CBPY");
break;
case 4:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY->encodeSymbol (CBPY, "MB_CBPY");
break;
default:
assert (FALSE);
}
//fprintf(stderr,"CBPY = %d\n",CBPY);
m_statsMB.nIntraMB++;
if (pmbmd->m_dctMd == INTRAQ) {
Int DQUANT = pmbmd->m_intStepDelta; //send DQUANT
assert (DQUANT >= -2 && DQUANT <= 2);
if (DQUANT != 0) {
if (sign (DQUANT) == 1)
m_pbitstrmOut->putBits (DQUANT + 1, 2, "MB_DQUANT");
else
m_pbitstrmOut->putBits (-1 - DQUANT, 2, "MB_DQUANT");
m_statsMB.nBitsDQUANT += 2;
}
}
// INTERLACE
if(m_vopmd.bInterlace==TRUE) {
m_pbitstrmOut->putBits (pmbmd->m_bFieldDCT, 1, "DCT_TYPE"); // send dct_type
m_statsMB.nBitsInterlace += 1;
}
// ~INTERLACE
}
Void CVideoObjectEncoder::codeMBTextureHeadOfPVOP (const CMBMode* pmbmd)
{
UInt CBPC = (pmbmd->getCodedBlockPattern (U_BLOCK) << 1)
| pmbmd->getCodedBlockPattern (V_BLOCK);
//per defintion of H.263's CBPC
assert (CBPC >= 0 && CBPC <= 3);
Int CBPY = 0;
UInt cNonTrnspBlk = 0, iBlk;
for (iBlk = (UInt) Y_BLOCK1; iBlk <= (UInt) Y_BLOCK4; iBlk++) {
if (pmbmd->m_rgTranspStatus [iBlk] != ALL)
cNonTrnspBlk++;
}
UInt iBitPos = 1;
for (iBlk = (UInt) Y_BLOCK1; iBlk <= (UInt) Y_BLOCK4; iBlk++) {
if (pmbmd->m_rgTranspStatus [iBlk] != ALL) {
CBPY |= pmbmd->getCodedBlockPattern ((BlockNum) iBlk) << (cNonTrnspBlk - iBitPos);
iBitPos++;
}
}
assert (CBPY >= 0 && CBPY <= 15); //per defintion of H.263's CBPY
m_pbitstrmOut->putBits (pmbmd->m_bSkip, 1, "MB_Skip");
m_statsMB.nBitsCOD++;
if (pmbmd->m_bSkip)
m_statsMB.nSkipMB++;
else {
Int iMBtype; //per H.263's MBtype
if (pmbmd->m_dctMd == INTRA || pmbmd->m_dctMd == INTRAQ)
iMBtype = pmbmd->m_dctMd + 3;
else
iMBtype = (pmbmd -> m_dctMd - 2) | pmbmd -> m_bhas4MVForward << 1;
assert (iMBtype >= 0 && iMBtype <= 4);
#ifdef __TRACE_AND_STATS_
m_pbitstrmOut->trace (iMBtype, "MB_MBtype");
m_pbitstrmOut->trace (CBPC, "MB_CBPC");
#endif // __TRACE_AND_STATS_
m_statsMB.nBitsMCBPC += m_pentrencSet->m_pentrencMCBPCinter->encodeSymbol (iMBtype * 4 + CBPC, "MCBPC");
if (pmbmd->m_dctMd == INTRA || pmbmd->m_dctMd == INTRAQ) {
m_pbitstrmOut->putBits (pmbmd->m_bACPrediction, 1, "MB_ACPRED");
m_statsMB.nBitsIntraPred++;
#ifdef __TRACE_AND_STATS_
m_pbitstrmOut->trace (cNonTrnspBlk, "MB_NumNonTranspBlks");
m_pbitstrmOut->trace (CBPY, "MB_CBPY (I-style)");
#endif // __TRACE_AND_STATS_
switch (cNonTrnspBlk) {
case 1:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY1->encodeSymbol (CBPY, "MB_CBPY");
break;
case 2:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY2->encodeSymbol (CBPY, "MB_CBPY");
break;
case 3:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY3->encodeSymbol (CBPY, "MB_CBPY");
break;
case 4:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY->encodeSymbol (CBPY, "MB_CBPY");
break;
default:
assert (FALSE);
}
m_statsMB.nIntraMB++;
}
else {
#ifdef __TRACE_AND_STATS_
m_pbitstrmOut->trace (cNonTrnspBlk, "MB_NumNonTranspBlks");
m_pbitstrmOut->trace (CBPY, "MB_CBPY (P-style)");
#endif // __TRACE_AND_STATS_
switch (cNonTrnspBlk) {
case 1:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY1->encodeSymbol (1 - CBPY, "MB_CBPY");
break;
case 2:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY2->encodeSymbol (3 - CBPY, "MB_CBPY");
break;
case 3:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY3->encodeSymbol (7 - CBPY, "MB_CBPY");
break;
case 4:
m_statsMB.nBitsCBPY += m_pentrencSet->m_pentrencCBPY->encodeSymbol (15 - CBPY, "MB_CBPY");
break;
default:
assert (FALSE);
}
if(pmbmd ->m_bhas4MVForward)
m_statsMB.nInter4VMB++;
// INTERLACE
else if (pmbmd-> m_bFieldMV)
m_statsMB.nFieldForwardMB++;
// ~INTERLACE
else
m_statsMB.nInterMB++;
}
if (pmbmd->m_dctMd == INTERQ || pmbmd->m_dctMd == INTRAQ) {
Int DQUANT = pmbmd->m_intStepDelta; //send DQUANT
assert (DQUANT >= -2 && DQUANT <= 2);
if (DQUANT != 0) {
if (sign (DQUANT) == 1)
m_pbitstrmOut->putBits (DQUANT + 1, 2, "MB_DQUANT");
else
m_pbitstrmOut->putBits (-1 - DQUANT, 2, "MB_DQUANT");
m_statsMB.nBitsDQUANT += 2;
}
}
// INTERLACE
if (m_vopmd.bInterlace == TRUE) {
if((pmbmd->m_dctMd == INTRA) || (pmbmd->m_dctMd == INTRAQ) || (CBPC || CBPY)) {
m_pbitstrmOut->putBits (pmbmd->m_bFieldDCT, 1, "DCT_Type");
m_statsMB.nBitsInterlace += 1;
}
if((pmbmd->m_dctMd == INTER || pmbmd->m_dctMd == INTERQ )&&(pmbmd -> m_bhas4MVForward == FALSE)) {
m_pbitstrmOut->putBits (pmbmd->m_bFieldMV, 1, "Field_Prediction");
m_statsMB.nBitsInterlace += 1;
if(pmbmd->m_bFieldMV) {
m_pbitstrmOut->putBits (pmbmd->m_bForwardTop, 1, "Forward_Top_Field_Ref");
m_pbitstrmOut->putBits (pmbmd->m_bForwardBottom, 1, "Forward_Bot_Field_Ref");
m_statsMB.nBitsInterlace += 2;
}
}
}
// ~INTERLACE
}
}
Void CVideoObjectEncoder::codeMBTextureHeadOfBVOP (const CMBMode* pmbmd)
{
U8 uchCBPB;
if (pmbmd->m_bSkip) {
if (m_volmd.volType == BASE_LAYER) {
assert (pmbmd -> m_rgTranspStatus [0] != ALL);
if (pmbmd->m_bColocatedMBSkip)
return;
}
m_pbitstrmOut->putBits (1, 1, "MB_MODB");
m_statsMB.nBitsMODB++;
m_statsMB.nSkipMB++;
if(m_volmd.volType == ENHN_LAYER && m_vopmd.iRefSelectCode == 0)
return;
}
else {
Int iCBPC = (pmbmd->getCodedBlockPattern (U_BLOCK) << 1) |
pmbmd->getCodedBlockPattern (V_BLOCK); //per defintion of H.263's CBPC
assert (iCBPC >= 0 && iCBPC <= 3);
Int iCBPY = 0;
Int iNumNonTrnspBlk = 0, iBlk;
for (iBlk = Y_BLOCK1; iBlk <= Y_BLOCK4; iBlk++)
iNumNonTrnspBlk += (pmbmd->m_rgTranspStatus [iBlk] != ALL);
Int iBitPos = 1;
for (iBlk = Y_BLOCK1; iBlk <= Y_BLOCK4; iBlk++) {
if (pmbmd->m_rgTranspStatus [iBlk] != ALL) {
iCBPY |= pmbmd->getCodedBlockPattern ((BlockNum) iBlk) << (iNumNonTrnspBlk - iBitPos);
iBitPos++;
}
}
assert (iCBPY >= 0 && iCBPY <= 15); //per defintion of H.263's CBPY
uchCBPB = (iCBPY << 2 | iCBPC) & 0x3F;
if (uchCBPB == 0) {
m_pbitstrmOut->putBits (1, 2, "MB_MODB");
m_statsMB.nBitsMODB += 2;
if (m_volmd.volType == BASE_LAYER || (m_volmd.volType == ENHN_LAYER && m_vopmd.iRefSelectCode != 0))
m_statsMB.nBitsMBTYPE += m_pentrencSet->m_pentrencMbTypeBVOP->encodeSymbol (pmbmd->m_mbType, "MB_TYPE");
else {
Int iMbtypeBits =0;
if(pmbmd->m_mbType == FORWARD) iMbtypeBits = 1;
else if(pmbmd->m_mbType == INTERPOLATE) iMbtypeBits = 2;
else if(pmbmd->m_mbType == BACKWARD) iMbtypeBits = 3;
Int iMbtypeValue = 1;
m_statsMB.nBitsMBTYPE += iMbtypeBits;
m_pbitstrmOut->putBits (iMbtypeValue, iMbtypeBits, "MB_TYPE");
}
}
else {
m_pbitstrmOut->putBits (0, 2,"MB_MODB");
m_statsMB.nBitsMODB += 2;
//m_stat.nBitsMBTYPE += m_pentrencMbTypeBVOP->encodeSymbol (pmbmd->m_mbType, "MB_TYPE");
if (m_volmd.volType == BASE_LAYER || (m_volmd.volType == ENHN_LAYER && m_vopmd.iRefSelectCode != 0))
m_statsMB.nBitsMBTYPE += m_pentrencSet->m_pentrencMbTypeBVOP->encodeSymbol (pmbmd->m_mbType, "MB_TYPE");
else {
Int iMbtypeBits =0;
if(pmbmd->m_mbType == FORWARD) iMbtypeBits = 1;
else if(pmbmd->m_mbType == INTERPOLATE) iMbtypeBits = 2;
else if(pmbmd->m_mbType == BACKWARD) iMbtypeBits = 3;
Int iMbtypeValue = 1;
m_statsMB.nBitsMBTYPE += iMbtypeBits;
m_pbitstrmOut->putBits (iMbtypeValue, iMbtypeBits, "MB_TYPE");
}
m_pbitstrmOut -> putBits (uchCBPB, iNumNonTrnspBlk + 2, "MB_CBPB");
m_statsMB.nBitsCBPB += iNumNonTrnspBlk + 2;
}
switch (pmbmd->m_mbType) {
case FORWARD:
m_statsMB.nForwardMB++;
break;
case BACKWARD:
m_statsMB.nBackwardMB++;
break;
case DIRECT:
m_statsMB.nDirectMB++;
break;
case INTERPOLATE:
m_statsMB.nInterpolateMB++;
break;
default:
assert (FALSE);
}
}
if (pmbmd->m_mbType != DIRECT) {
if (uchCBPB != 0) { //no need to send when MODB = 10
Int DQUANT = pmbmd->m_intStepDelta; //send DQUANT
assert (DQUANT == -2 || DQUANT == 2 || DQUANT == 0);
if (DQUANT == 0) {
m_pbitstrmOut->putBits ((Int) 0, (UInt) 1, "MB_DQUANT");
m_statsMB.nBitsDQUANT += 1;
}
else {
if (DQUANT == 2)
m_pbitstrmOut->putBits (3, 2, "MB_DQUANT");
else
m_pbitstrmOut->putBits (2, 2, "MB_DQUANT");
m_statsMB.nBitsDQUANT += 2;
}
}
}
// INTERLACE
if (pmbmd->m_bSkip) {
if (m_vopmd.bInterlace && (pmbmd->m_mbType == DIRECT) && pmbmd->m_bFieldMV)
m_statsMB.nFieldDirectMB++;
} else if (m_vopmd.bInterlace) {
if (uchCBPB) {
m_pbitstrmOut->putBits((Int) pmbmd->m_bFieldDCT, 1, "DCT_TYPE");
m_statsMB.nBitsInterlace++;
}
if (pmbmd->m_bFieldMV) {
switch (pmbmd->m_mbType) {
case FORWARD:
m_pbitstrmOut->putBits(1, 1, "FIELD_PREDICTION");
m_pbitstrmOut->putBits((Int)pmbmd->m_bForwardTop, 1, "FORWARD_TOP_FIELD_REFERENCE");
m_pbitstrmOut->putBits((Int)pmbmd->m_bForwardBottom, 1, "FORWARD_BOTTOM_FIELD_REFERENCE");
m_statsMB.nFieldForwardMB++;
m_statsMB.nBitsInterlace += 3;
break;
case BACKWARD:
m_pbitstrmOut->putBits(1, 1, "FIELD_PREDICTION");
m_pbitstrmOut->putBits((Int)pmbmd->m_bBackwardTop, 1, "BACKWARD_TOP_FIELD_REFERENCE");
m_pbitstrmOut->putBits((Int)pmbmd->m_bBackwardBottom, 1, "BACKWARD_BOTTOM_FIELD_REFERENCE");
m_statsMB.nFieldBackwardMB++;
m_statsMB.nBitsInterlace += 3;
break;
case INTERPOLATE:
m_pbitstrmOut->putBits(1, 1, "FIELD_PREDICTION");
m_pbitstrmOut->putBits((Int)pmbmd->m_bForwardTop, 1, "FORWARD_TOP_FIELD_REFERENCE");
m_pbitstrmOut->putBits((Int)pmbmd->m_bForwardBottom, 1, "FORWARD_BOTTOM_FIELD_REFERENCE");
m_pbitstrmOut->putBits((Int)pmbmd->m_bBackwardTop, 1, "BACKWARD_TOP_FIELD_REFERENCE");
m_pbitstrmOut->putBits((Int)pmbmd->m_bBackwardBottom, 1, "BACKWARD_BOTTOM_FIELD_REFERENCE");
m_statsMB.nFieldInterpolateMB++;
m_statsMB.nBitsInterlace += 5;
break;
case DIRECT:
m_statsMB.nFieldDirectMB++;
break;
}
} else if (pmbmd->m_mbType != DIRECT) {
m_pbitstrmOut->putBits(0, 1, "FIELD_PREDICTION");
m_statsMB.nBitsInterlace++;
}
}
// ~INTERLACE
}
Void CVideoObjectEncoder::copyToCurrBuffWithShape (
const PixelC* ppxlcCurrY, const PixelC* ppxlcCurrU, const PixelC* ppxlcCurrV,
const PixelC* ppxlcCurrBY, const PixelC* ppxlcCurrA,
Int iWidthY, Int iWidthUV
)
{
PixelC* ppxlcCurrMBY = m_ppxlcCurrMBY;
PixelC* ppxlcCurrMBU = m_ppxlcCurrMBU;
PixelC* ppxlcCurrMBV = m_ppxlcCurrMBV;
PixelC* ppxlcCurrMBBY = m_ppxlcCurrMBBY;
Int ic;
for (ic = 0; ic < BLOCK_SIZE; ic++) {
memcpy (ppxlcCurrMBY, ppxlcCurrY, MB_SIZE*sizeof(PixelC));
memcpy (ppxlcCurrMBU, ppxlcCurrU, BLOCK_SIZE*sizeof(PixelC));
memcpy (ppxlcCurrMBV, ppxlcCurrV, BLOCK_SIZE*sizeof(PixelC));
memcpy (ppxlcCurrMBBY, ppxlcCurrBY, MB_SIZE*sizeof(PixelC));
ppxlcCurrMBY += MB_SIZE; ppxlcCurrY += iWidthY;
ppxlcCurrMBU += BLOCK_SIZE; ppxlcCurrU += iWidthUV;
ppxlcCurrMBV += BLOCK_SIZE; ppxlcCurrV += iWidthUV;
ppxlcCurrMBBY += MB_SIZE; ppxlcCurrBY += iWidthY;
memcpy (ppxlcCurrMBY, ppxlcCurrY, MB_SIZE*sizeof(PixelC)); // two rows for Y
memcpy (ppxlcCurrMBBY, ppxlcCurrBY, MB_SIZE*sizeof(PixelC));
ppxlcCurrMBY += MB_SIZE; ppxlcCurrY += iWidthY;
ppxlcCurrMBBY += MB_SIZE; ppxlcCurrBY += iWidthY;
}
if (m_volmd.fAUsage == EIGHT_BIT) {
PixelC* ppxlcCurrMBA = m_ppxlcCurrMBA;
for (ic = 0; ic < MB_SIZE; ic++) {
memcpy (ppxlcCurrMBA, ppxlcCurrA, MB_SIZE*sizeof(PixelC));
ppxlcCurrMBA += MB_SIZE;
ppxlcCurrA += iWidthY;
}
}
}
Void CVideoObjectEncoder::copyToCurrBuffJustShape(const PixelC* ppxlcCurrBY,
Int iWidthY)
{
PixelC* ppxlcCurrMBBY = m_ppxlcCurrMBBY;
Int ic;
for (ic = 0; ic < BLOCK_SIZE; ic++) {
memcpy (ppxlcCurrMBBY, ppxlcCurrBY, MB_SIZE*sizeof(PixelC));
ppxlcCurrMBBY += MB_SIZE; ppxlcCurrBY += iWidthY;
memcpy (ppxlcCurrMBBY, ppxlcCurrBY, MB_SIZE*sizeof(PixelC));
ppxlcCurrMBBY += MB_SIZE; ppxlcCurrBY += iWidthY;
}
}
Void CVideoObjectEncoder::copyToCurrBuff (
const PixelC* ppxlcCurrY, const PixelC* ppxlcCurrU, const PixelC* ppxlcCurrV,
Int iWidthY, Int iWidthUV
)
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -