sys_encoder_motest.cpp

完整的RTP RTSP代码库

	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_

	iSAD8 += blockmatch8 (ppxlcCodedBlkY, pmv8, x, blkY, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample);
	pmv8++;
// RRV modification
	ppxlcCodedBlkY += (BLOCK_SIZE *m_iRRVScale);
//	ppxlcCodedBlkY += BLOCK_SIZE;
// ~RRV
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_

	iSAD8 += blockmatch8 (ppxlcCodedBlkY, pmv8, blkX, blkY, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample);
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_
	
#endif // DISABLE_4MV_FOR_PVOP

/* NBIT: change
	iSADInter -= FAVOR_16x16;
*/
// RRV modification
	if(m_vopmd.RRVmode.iRRVOnOff == 1)
	{
		iSADInter	-= iFavor32x32;
		iSAD16x8	-= FAVOR_FIELD_RRV;
	}
	else
	{
		iSADInter	-= iFavor16x16;
		iSAD16x8	-= FAVOR_FIELD;
	}
//	iSADInter -= iFavor16x16;
//	iSAD16x8 -= FAVOR_FIELD;
// ~RRV
	if ((iSADInter <= iSAD8) && (iSADInter <= iSAD16x8)) {
/* NBIT: change
	    iSADInter += FAVOR_16x16;
*/
// RRV modification
		if(m_vopmd.RRVmode.iRRVOnOff == 1)
		{
			iSADInter += iFavor32x32;
		}
		else
		{
			iSADInter += iFavor16x16;
		}
//	    iSADInter += iFavor16x16;
// ~RRV
		pmbmd -> m_bhas4MVForward = FALSE;
		pmv -> computeTrueMV (); // compute here instead of blkmatch to save computation
		pmv -> computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
		for (UInt i = 1; i < PVOP_MV_PER_REF_PER_MB; i++) {// didn't increment the last pmv
          pmv[i].m_vctTrueHalfPel = pmv->m_vctTrueHalfPel;	// Save (iMVX, iMVY) for MV file
          pmv[i].computeMV();
        }
        
        
	}
// INTERLACE
	else if (iSAD16x8 <= iSAD8) { // Field-based
		pmbmd -> m_bhas4MVForward = FALSE;
		pmbmd -> m_bFieldMV = TRUE;
		Int iTempX1, iTempY1, iTempX2, iTempY2;
		if(pmbmd->m_bForwardTop) {
			pmv [6].computeTrueMV ();
            pmv [6].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX1 = pmv[6].m_vctTrueHalfPel.x;
			iTempY1 = pmv[6].m_vctTrueHalfPel.y;
		}
		else {
			pmv [5].computeTrueMV ();
            pmv [5].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX1 = pmv[5].m_vctTrueHalfPel.x;
			iTempY1 = pmv[5].m_vctTrueHalfPel.y;
		}
		if(pmbmd->m_bForwardBottom) {
			pmv [8].computeTrueMV ();
            pmv [8].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX2 = pmv[8].m_vctTrueHalfPel.x;
			iTempY2 = pmv[8].m_vctTrueHalfPel.y;
		}
		else {
			pmv [7].computeTrueMV ();
            pmv [7].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX2 = pmv[7].m_vctTrueHalfPel.x;
			iTempY2 = pmv[7].m_vctTrueHalfPel.y;
		}
		iSADInter = iSAD16x8 + FAVOR_FIELD;
		Int iTemp;
		for (UInt i = 1; i < 5; i++) {
			iTemp = iTempX1 + iTempX2;
			pmv [i].m_vctTrueHalfPel.x = (iTemp & 3) ? ((iTemp>>1) | 1) : (iTemp>>1);
			iTemp = iTempY1 + iTempY2;
			pmv [i].m_vctTrueHalfPel.y = (iTemp & 3) ? ((iTemp>>1) | 1) : (iTemp>>1);
			pmv[i].computeMV (); 
		}
	}
// ~INTERLACE
	else {
		pmv [1].computeTrueMV ();
		pmv [2].computeTrueMV ();
		pmv [3].computeTrueMV ();
		pmv [4].computeTrueMV ();
		pmv [1].computeMV ();
		pmv [2].computeMV ();
		pmv [3].computeMV ();
		pmv [4].computeMV ();
		pmbmd -> m_bhas4MVForward = TRUE;
		iSADInter = iSAD8;
	}
// GMC
	pmbmd -> m_bMCSEL = FALSE;
	if(m_uiSprite == 2 && m_vopmd.vopPredType == SPRITE){
		Int iMSADG = 4096*256;
		PixelC* ppxlcRefforgme = (PixelC*) m_pvopcRefQ0->pixelsY () ;
		iMSADG = globalme (x,y,ppxlcRefforgme);
#ifdef __TRACE_AND_STATS_
		m_pbitstrmOut->trace (iMSADG, "MB_GMC");
#endif // __TRACE_AND_STATS_
		Int ioffset, iQP=m_uiGMCQP; // GMC_V2 *m_rgiQPpred;
		if(pmbmd -> m_bhas4MVForward == TRUE)
			//ioffset = iQP*256/24;
			ioffset = iQP*256/16;
		else
		{
			if(pmbmd -> m_bFieldMV == TRUE)
			{
				ioffset = iQP*256/32;
			}else{
				if(pmv->m_vctTrueHalfPel.x == 0 && pmv->m_vctTrueHalfPel.y == 0)
					ioffset = iFavorZero*2;
				else
					ioffset = iQP*256/64;
			}
		}
		if((iMSADG - ioffset) <= iSADInter)
		{
			iSADInter = iMSADG;
			pmbmd -> m_dctMd = INTER;
			pmbmd -> m_bFieldMV = FALSE;
			pmbmd -> m_bhas4MVForward = FALSE;
			pmbmd -> m_bMCSEL = TRUE;
			Int iPmvx, iPmvy, iHalfx, iHalfy;
			globalmv (iPmvx, iPmvy, iHalfx, iHalfy,
				x,y,m_vopmd.mvInfoForward.uiRange,m_volmd.bQuarterSample);
			*pmv = CMotionVector (iPmvx, iPmvy);
			pmv -> iHalfX = iHalfx;
			pmv -> iHalfY = iHalfy;
			pmv -> computeTrueMV ();
			pmv -> computeMV ();
			for (UInt i = 1; i < PVOP_MV_PER_REF_PER_MB; i++)
				pmv[i] = *pmv;
		}
		else
		{
			pmbmd -> m_bMCSEL = FALSE;
		}
	}
// ~GMC
/* NBIT: change
	if (iSumDev < (iSADInter - FAVOR_INTER)) {
*/
// GMC
	Int iIntraOffset;
	if(m_uiSprite == 2 && m_vopmd.vopPredType == SPRITE)
		iIntraOffset = iFavorInter;
		//iIntraOffset = iFavorInter/2;
	else
		iIntraOffset = iFavorInter;
// ~GMC
	if (iSumDev < (iSADInter - iIntraOffset)) { // GMC
		pmbmd -> m_bSkip = FALSE;
		pmbmd -> m_dctMd = INTRA;
		pmbmd -> m_bFieldMV = FALSE;
// GMC
		pmbmd -> m_bMCSEL = FALSE;
// ~GMC
		memset (pmv, 0, PVOP_MV_PER_REF_PER_MB * sizeof (CMotionVector));
		return ((m_uiRateControl==RC_MPEG4) ? sumAbsCurrMB () : 0);
	}
	else {
		pmbmd -> m_dctMd = INTER;
		if (pmbmd->m_bhas4MVForward == FALSE
			&& pmbmd -> m_bFieldMV == FALSE
// GMC
			&& pmbmd -> m_bMCSEL == FALSE
// ~GMC
			&& pmv->m_vctTrueHalfPel.x == 0 && pmv->m_vctTrueHalfPel.y == 0)
/* NBIT: change
			return (iSADInter + FAVORZERO);
*/
			return (iSADInter + iFavorZero);
		else 
			return iSADInter;
	}
}

Int CVideoObjectEncoder::motionEstMB_PVOP_WithShape (
	CoordI x, CoordI y, 
	CMotionVector* pmv, CMBMode* pmbmd, 
	const PixelC* ppxlcRefMBY
)
{
	assert (pmbmd->m_rgTranspStatus [0] == PARTIAL);
	UInt nBits = m_volmd.nBits; // NBIT
	Int iFavorZero = FAVORZERO;
	Int iFavor16x16 = (pmbmd->m_rgNumNonTranspPixels [0] >> 1) + 1; // NBIT
	Int iFavorInter = pmbmd->m_rgNumNonTranspPixels [0] << 1; // NBIT
	// NBIT: addjust mode selection thresholds
	if (nBits > 8) {
		iFavor16x16 <<= (nBits-8);
		iFavorInter <<= (nBits-8);
		iFavorZero <<= (nBits-8);
	} else if (nBits < 8) {
		iFavor16x16 >>= (8-nBits);
		iFavorInter >>= (8-nBits);
		iFavorZero >>= (8-nBits);
	}

	Int iInitSAD = sad16x16At0WithShape (ppxlcRefMBY, pmbmd);
	Int iSADInter = blkmatch16WithShape (pmv, x, y, x, y, iInitSAD, ppxlcRefMBY, m_puciRefQZoom0, pmbmd, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0);
	Int iSumDev = sumDevWithShape (pmbmd -> m_rgNumNonTranspPixels [0]);
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSADInter, "MB_SAD16");
#endif // __TRACE_AND_STATS_
// INTERLACE
// New Changes
	Int iSAD16x8 = 4096*256;
	pmbmd -> m_bFieldMV = FALSE;
	if(m_vopmd.bInterlace) {
		// Field-Based Estimation
		CMotionVector* pmv16x8 = pmv + 5;
		const PixelC *ppxlcHalfPelRef = m_pvopcRefQ0->pixelsY()
			+EXPANDY_REF_FRAME*m_iFrameWidthY + EXPANDY_REF_FRAME + x + y * m_iFrameWidthY; // 1.31.99 changes

		// top to top
		Int iSAD16x8top = blkmatch16x8WithShape (pmv16x8, x, y, 0, ppxlcRefMBY,
			ppxlcHalfPelRef, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0);
		pmv16x8++;
		// bot to top
		Int iSAD16x8bot = blkmatch16x8WithShape (pmv16x8, x, y, 0, ppxlcRefMBY + m_iFrameWidthY,
			ppxlcHalfPelRef + m_iFrameWidthY, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0);

		iSAD16x8=(iSAD16x8top<iSAD16x8bot) ? iSAD16x8top : iSAD16x8bot;
		pmbmd->m_bForwardTop = (iSAD16x8top<iSAD16x8bot) ? 0 : 1;
		pmv16x8++;
		// top to bot
		iSAD16x8top = blkmatch16x8WithShape (pmv16x8, x, y, MB_SIZE, ppxlcRefMBY,
			ppxlcHalfPelRef, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0);
		pmv16x8++;
		// bot to bot
		iSAD16x8bot = blkmatch16x8WithShape (pmv16x8, x, y, MB_SIZE, ppxlcRefMBY + m_iFrameWidthY,
			ppxlcHalfPelRef + m_iFrameWidthY, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0);
		iSAD16x8 += (iSAD16x8top<iSAD16x8bot) ? iSAD16x8top : iSAD16x8bot;
		pmbmd->m_bForwardBottom = (iSAD16x8top<iSAD16x8bot) ? 0 : 1;
	} else {
		iSAD16x8 = 4096*256;

		for (Int iBlk = 5; iBlk <= 8; iBlk++) {  // 04/28/99 david ruhoff
			pmv [iBlk] = pmv [0];   // fill in field info to make mv file deterministic
		}
	}
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD16x8, "MB_SAD16x8");
#endif // __TRACE_AND_STATS_
// end of New changes
// ~INTERLACE

	CoordI blkX, blkY;
	Int iSAD8 = 0;
	CMotionVector* pmv8 = pmv + 1;
	blkX = x + BLOCK_SIZE;
	blkY = y + BLOCK_SIZE;
	const PixelC* ppxlcCodedBlkY = m_ppxlcCurrMBY;
	const PixelC* ppxlcCodedBlkBY = m_ppxlcCurrMBBY;

	// 8 x 8
	iSAD8 += 
		(pmbmd->m_rgTranspStatus [1] == PARTIAL) ? blockmatch8WithShape (ppxlcCodedBlkY, ppxlcCodedBlkBY, pmv8, x, y, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0) :
		(pmbmd->m_rgTranspStatus [1] == NONE) ? blockmatch8 (ppxlcCodedBlkY, pmv8, x, y, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample) : 0;
	pmv8++;
	ppxlcCodedBlkY += BLOCK_SIZE;
	ppxlcCodedBlkBY += BLOCK_SIZE;
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_

	iSAD8 += 
		(pmbmd->m_rgTranspStatus [2] == PARTIAL) ? blockmatch8WithShape (ppxlcCodedBlkY, ppxlcCodedBlkBY, pmv8, blkX, y, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0) :
		(pmbmd->m_rgTranspStatus [2] == NONE)	? blockmatch8 (ppxlcCodedBlkY, pmv8, blkX, y, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample) : 0;
	pmv8++;
	ppxlcCodedBlkY += BLOCK_SIZE * MB_SIZE - BLOCK_SIZE;
	ppxlcCodedBlkBY += BLOCK_SIZE * MB_SIZE - BLOCK_SIZE;
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_
	
	iSAD8 += 
		(pmbmd->m_rgTranspStatus [3] == PARTIAL) ? blockmatch8WithShape (ppxlcCodedBlkY, ppxlcCodedBlkBY, pmv8, x, blkY, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0) :
		(pmbmd->m_rgTranspStatus [3] == NONE)	? blockmatch8 (ppxlcCodedBlkY, pmv8, x, blkY, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample) : 0;
	pmv8++;
	ppxlcCodedBlkY += BLOCK_SIZE;
	ppxlcCodedBlkBY += BLOCK_SIZE;
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_
	
	iSAD8 += 
		(pmbmd->m_rgTranspStatus [4] == PARTIAL) ? blockmatch8WithShape (ppxlcCodedBlkY, ppxlcCodedBlkBY, pmv8, blkX, blkY, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample,0) :
		(pmbmd->m_rgTranspStatus [4] == NONE)	? blockmatch8 (ppxlcCodedBlkY, pmv8, blkX, blkY, pmv, m_vopmd.iSearchRangeForward, m_volmd.bQuarterSample) : 0;
#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_

	// begin added by Sharp (98/9/10) prevents inter4v with one transp block
	if (( pmbmd->m_rgTranspStatus [1] != ALL && pmbmd->m_rgTranspStatus [2] == ALL
		&& pmbmd->m_rgTranspStatus [3] == ALL && pmbmd->m_rgTranspStatus [4] == ALL	)||
		( pmbmd->m_rgTranspStatus [1] == ALL && pmbmd->m_rgTranspStatus [2] != ALL
		&& pmbmd->m_rgTranspStatus [3] == ALL && pmbmd->m_rgTranspStatus [4] == ALL	)||
		( pmbmd->m_rgTranspStatus [1] == ALL && pmbmd->m_rgTranspStatus [2] == ALL
		&& pmbmd->m_rgTranspStatus [3] != ALL && pmbmd->m_rgTranspStatus [4] == ALL	)||
		( pmbmd->m_rgTranspStatus [1] == ALL && pmbmd->m_rgTranspStatus [2] == ALL
		&& pmbmd->m_rgTranspStatus [3] == ALL && pmbmd->m_rgTranspStatus [4] != ALL ))
		iSAD8 = 256 * 4096;
	// end added by Sharp (98/9/10)

#ifdef __TRACE_AND_STATS_
	m_pbitstrmOut->trace (iSAD8, "MB_SAD8");
#endif // __TRACE_AND_STATS_

/* NBIT: change
	if ((iSADInter - ((pmbmd->m_rgNumNonTranspPixels [0] >> 1) + 1)) <= iSAD8) {
*/
// new changes
	iSADInter -= iFavor16x16;
	iSAD16x8 -= FAVOR_FIELD;
	if ((iSADInter <= iSAD8)&&(iSADInter <= iSAD16x8)) {
		iSADInter += iFavor16x16;
// end of new changes
		pmbmd -> m_bhas4MVForward = FALSE;
		pmv -> computeTrueMV (); // compute here instead of blkmatch to save computation
		pmv -> computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
		for (UInt i = 1; i < PVOP_MV_PER_REF_PER_MB; i++) // didn't increment the last pmv
			pmv [i] = *pmv;
	}
// INTERLACE
	// new changes
	else if (iSAD16x8 <= iSAD8) { // Field-based
		pmbmd -> m_bhas4MVForward = FALSE;
		pmbmd -> m_bFieldMV = TRUE;
		Int iTempX1, iTempY1, iTempX2, iTempY2;
		if(pmbmd->m_bForwardTop) {
			pmv [6].computeTrueMV ();
			pmv [6].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX1 = pmv[6].m_vctTrueHalfPel.x;
			iTempY1 = pmv[6].m_vctTrueHalfPel.y;
		}
		else {
			pmv [5].computeTrueMV ();
			pmv [5].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX1 = pmv[5].m_vctTrueHalfPel.x;
			iTempY1 = pmv[5].m_vctTrueHalfPel.y;
		}
		if(pmbmd->m_bForwardBottom) {
			pmv [8].computeTrueMV ();
			pmv [8].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX2 = pmv[8].m_vctTrueHalfPel.x;
			iTempY2 = pmv[8].m_vctTrueHalfPel.y;
		}
		else {
			pmv [7].computeTrueMV ();
			pmv [7].computeMV ();     // to make pmv unique (iMVX=3+iHalfX=-1 == iMVX=2+iHalfX=+1)
			iTempX2 = pmv[7].m_vctTrueHalfPel.x;