?? gme_for_iso.cpp
字號:
dk = dx1 - x1;
d1mk = 1. - dk;
dl = dy1 - y1;
d1ml = 1. -dl;
dI1x1y1[0] = pref_work[iref_pel];
dI1x1y1[1] = pref_work[iref_pel1];
dI1x1y1[2] = pref_work[iref_pel2];
dI1x1y1[3] = pref_work[iref_pel3];
dI1 = d1mk*d1ml*dI1x1y1[0] + dk*d1ml*dI1x1y1[1] +
d1mk*dl*dI1x1y1[2] + dk*dl*dI1x1y1[3];
de = dI1 - pcurr_work[icurr_pel];
if(iite==0)
iperror_histgram[(Int)(fabs(de))]++;
if(fabs(de) < ithreshold_T) {
dI1dx = (dI1x1y1[1]-dI1x1y1[0])*d1ml + (dI1x1y1[3]-dI1x1y1[2])*dl;
dI1dy = (dI1x1y1[2]-dI1x1y1[0])*d1mk + (dI1x1y1[3]-dI1x1y1[1])*dk;
ddedm[0] = dI1dx;
ddedm[1] = dI1dy;
db[0] += -de*ddedm[0];
db[1] += -de*ddedm[1];
for(yj=0; yj<2; yj++)
for(xi=0; xi<=yj; xi++)
dA[yj*2+xi] += ddedm[yj] * ddedm[xi];
dE2 += de*de;
} // threshold
} // limit of ref_luma area
} // limit of curr_luma area
} // limit of curr_alpha value
} // x
icurr_pel += icurr_offset;
} // y
}
if(iite==0){
istop = istop*90/100;
itmp=0;
for(xi=0;xi<256;xi++){
itmp+=iperror_histgram[xi];
if(itmp > istop){
ithreshold_T = xi-1;
break;
}
}
}
dA[1] = dA[2];
icheck = DeltaMP(dA, 2, db, dm);
if(icheck){
for(xi=0; xi<2; xi++)
dTM[xi] += dm[xi];
if(fabs(dm[0]) < 0.001 && fabs(dm[1]) < 0.001 ) break;
}else{
// printf("not up to matrix\n");
break;
}
} // iteration/
if(ilevel){
dTM[0] *= 2;
dTM[1] *= 2;
ifilter_offset =
icurr_width * (EXPANDY_REF_FRAME>>ilevel) + (EXPANDY_REF_FRAME>>ilevel);
pref_work -= ifilter_offset ;
delete [] pref_work; pref_work = NULL;
pcurr_work -= ifilter_offset ;
delete [] pcurr_work; pcurr_work = NULL;
if(m_volmd.fAUsage != RECTANGLE) {
pref_alpha_work -= ifilter_offset ;
delete [] pref_alpha_work; pref_alpha_work = NULL;
pcurr_alpha_work -= ifilter_offset ;
delete [] pcurr_alpha_work; pcurr_alpha_work = NULL;
}
}
icurr_width *= 2;
icurr_height *= 2;
icurr_left *= 2;
icurr_top *= 2;
icurr_right *= 2;
icurr_bottom *= 2;
iref_width *= 2;
iref_height *= 2;
iref_left *= 2;
iref_top *= 2;
iref_right *= 2;
iref_bottom *= 2;
} // level
pparameter -> dp1 = 1.0;
pparameter -> dp2 = 0.0;
pparameter -> dp3 = dTM[0];
pparameter -> dp4 = 0.0;
pparameter -> dp5 = 1.0;
pparameter -> dp6 = dTM[1];
pparameter -> dp7 = 0.0;
pparameter -> dp8 = 0.0;
delete [] dm; dm=NULL;
delete [] db; db= NULL;
delete [] dA; dA= NULL;
delete [] dTM; dTM= NULL;
delete [] ddedm; ddedm = NULL;
delete [] dI1x1y1; dI1x1y1 = NULL;
delete [] iperror_histgram; iperror_histgram = NULL;
}
Void CVideoObjectEncoder::IsotropicGME(const CVOPU8YUVBA* pvopcurr,
const CVOPU8YUVBA* pvopref, const CRct rctframe, const CRct rctcurr,
const CRct rctref, GME_para *pparameter)
{
const CU8Image* puciRefY = pvopref -> getPlane (Y_PLANE);
const CU8Image* puciCurrY = pvopcurr -> getPlane (Y_PLANE);
PixelC* pref = (PixelC*) puciRefY -> pixels ();
PixelC* pcurr = (PixelC*) puciCurrY -> pixels ();
const CU8Image* puciRefA = (pvopref -> fAUsage () == EIGHT_BIT)?
pvopref -> getPlaneA (0) :
((m_volmd.fAUsage == RECTANGLE) ? (CU8Image*)NULL:pvopref -> getPlane (BY_PLANE));
const CU8Image* puciCurrA = (pvopcurr -> fAUsage () == EIGHT_BIT)?
pvopcurr -> getPlaneA (0) :
((m_volmd.fAUsage == RECTANGLE) ? (CU8Image*)NULL:pvopcurr -> getPlane (BY_PLANE));
PixelC* pref_alpha;
PixelC* pcurr_alpha;
if(m_volmd.fAUsage != RECTANGLE){
pref_alpha = (PixelC*) puciRefA -> pixels ();
pcurr_alpha = (PixelC*) puciCurrA -> pixels ();
}
PixelC *pref_P0=NULL, *pref_P1=NULL, *pref_P2=NULL;
PixelC *pcurr_P0=NULL, *pcurr_P1=NULL, *pcurr_P2=NULL;
PixelC *pref_a_P0=NULL, *pref_a_P1=NULL, *pref_a_P2=NULL;
PixelC *pcurr_a_P0=NULL, *pcurr_a_P1=NULL, *pcurr_a_P2=NULL;
PixelC *pref_work, *pcurr_work, *pcurr_alpha_work, *pref_alpha_work;
Int icurr_width, icurr_height, icurr_offset;
Int icurr_left, icurr_top, icurr_right, icurr_bottom;
Int iref_width, iref_height;
Int iref_left, iref_top, iref_right, iref_bottom;
Int xi, yj, itmp, ibest_locationx, ibest_locationy;
Int icurr_pel, iref_pel;
Int iref_pel1, iref_pel2, iref_pel3;
Double *dm = new Double [4];
Double *db = new Double [4];
Double *dA = new Double [16];
Double *dTM = new Double [4];
Double dE2 = 0;
Int istop = 0, ilevel = 2, iite = 0;
Int x, y, x1, y1;
Double dx1, dy1, dx, dy;
Double dt, du, dk, d1mk, dl, d1ml,
dI1, de, dI1dx, dI1dy;
Double *ddedm = new Double [4];
Double *dI1x1y1 = new Double [4];
Int *iperror_histgram = new Int [256];
Int ithreshold_T=0, icheck = 1;
iref_left = (rctref.left+EXPANDY_REFVOP) >> 2;
iref_top = (rctref.top+EXPANDY_REFVOP) >> 2;
iref_right = (rctref.right-EXPANDY_REFVOP) >> 2;
iref_bottom = (rctref.bottom-EXPANDY_REFVOP) >> 2;
iref_width = (rctframe.right - rctframe.left) >> 2;
iref_height = (rctframe.bottom - rctframe.top) >> 2;
icurr_left = (rctcurr.left) >> 2;
icurr_top = (rctcurr.top) >> 2;
icurr_right = (rctcurr.right) >> 2;
icurr_bottom = (rctcurr.bottom) >> 2;
icurr_width = iref_width ;
icurr_height = iref_height ;
pref_P0 = pref;
pcurr_P0 = pcurr;
pref_P1 = new PixelC[iref_width*iref_height*4];
pcurr_P1 = new PixelC[icurr_width*icurr_height*4];
pref_P2 = new PixelC[iref_width*iref_height];
pcurr_P2 = new PixelC[icurr_width*icurr_height];
ThreeTapFilter(pref_P1, pref_P0, iref_width*4, iref_height*4);
ThreeTapFilter(pcurr_P1, pcurr_P0, icurr_width*4, icurr_height*4);
ThreeTapFilter(pref_P2, pref_P1, iref_width*2, iref_height*2);
ThreeTapFilter(pcurr_P2, pcurr_P1, icurr_width*2, icurr_height*2);
if(m_volmd.fAUsage != RECTANGLE){
pref_a_P0 = pref_alpha;
pcurr_a_P0 = pcurr_alpha;
pref_a_P1 = new PixelC[iref_width*iref_height*4];
pcurr_a_P1 = new PixelC[icurr_width*icurr_height*4];
pref_a_P2 = new PixelC[iref_width*iref_height];
pcurr_a_P2 = new PixelC[icurr_width*icurr_height];
ThreeTapFilter(pref_a_P1, pref_a_P0, iref_width*4, iref_height*4);
ThreeTapFilter(pcurr_a_P1, pcurr_a_P0, icurr_width*4, icurr_height*4);
ThreeTapFilter(pref_a_P2, pref_a_P1, iref_width*2, iref_height*2);
ThreeTapFilter(pcurr_a_P2, pcurr_a_P1, icurr_width*2, icurr_height*2);
}
Int ifilter_offset =
icurr_width * (EXPANDY_REF_FRAME>>2) + (EXPANDY_REF_FRAME>>2);
pcurr_P2 += ifilter_offset;
pref_P2 += ifilter_offset;
if(m_volmd.fAUsage != RECTANGLE){
pcurr_a_P2 += ifilter_offset;
pref_a_P2 += ifilter_offset;
}
ifilter_offset =
(icurr_width<<1) * (EXPANDY_REF_FRAME>>1) + (EXPANDY_REF_FRAME>>1);
pcurr_P1 += ifilter_offset;
pref_P1 += ifilter_offset;
if(m_volmd.fAUsage != RECTANGLE){
pcurr_a_P1 += ifilter_offset;
pref_a_P1 += ifilter_offset;
}
ifilter_offset =
(icurr_width<<2) * EXPANDY_REF_FRAME + EXPANDY_REF_FRAME;
pcurr_P0 += ifilter_offset;
pref_P0 += ifilter_offset;
if(m_volmd.fAUsage != RECTANGLE){
pcurr_a_P0 += ifilter_offset;
pref_a_P0 += ifilter_offset;
}
for(xi = 0; xi < 4; xi++)
dm[xi] = 0;
for(xi = 0; xi < 4; xi++)
dTM[xi] = 0;
dTM[0]=1.0;
pref_work = pref_P2;
pcurr_work = pcurr_P2;
if(m_volmd.fAUsage != RECTANGLE){
pref_alpha_work = pref_a_P2;
pcurr_alpha_work = pcurr_a_P2;
}
ibest_locationx = 0;
ibest_locationy = 0;
if(pvopref -> fAUsage () == RECTANGLE){
ModifiedThreeStepSearch(pref_work, pcurr_work,
icurr_width, icurr_height, iref_width, iref_height,
icurr_left, icurr_top, icurr_right, icurr_bottom,
iref_left, iref_top, iref_right, iref_bottom,
&ibest_locationx, &ibest_locationy);
}else{
ModifiedThreeStepSearch_WithShape(pref_work, pcurr_work,
pref_alpha_work, pcurr_alpha_work,
icurr_width, icurr_height, iref_width, iref_height,
icurr_left, icurr_top, icurr_right, icurr_bottom,
iref_left, iref_top, iref_right, iref_bottom,
&ibest_locationx, &ibest_locationy);
}
dTM[2] = (Double)ibest_locationx;
dTM[3] = (Double)ibest_locationy;
ithreshold_T = 1000000;
for(ilevel = 2; ilevel >= 0; ilevel--){
if(ilevel == 0){
pref_work = pref_P0;
pcurr_work = pcurr_P0;
}else if(ilevel ==1){
pref_work = pref_P1;
pcurr_work = pcurr_P1;
}
if(m_volmd.fAUsage != RECTANGLE){
if(ilevel == 0){
pref_alpha_work = pref_a_P0;
pcurr_alpha_work = pcurr_a_P0;
}else if(ilevel ==1){
pref_alpha_work = pref_a_P1;
pcurr_alpha_work = pcurr_a_P1;
}
}
icurr_offset = icurr_width - icurr_right + icurr_left;
for(xi=0;xi<256;xi++)
iperror_histgram[xi]=0;
for(iite = 0; iite < 32; iite++){
dE2 = 0.;
istop = 0;
icurr_pel = 0;
for(xi = 0; xi < 16; xi++)
dA[xi] = 0;
for(xi = 0; xi < 4; xi++)
db[xi] = 0;
icurr_pel = icurr_width*icurr_top + icurr_left;
if(pvopref -> fAUsage () == RECTANGLE){
for(y=icurr_top; y<icurr_bottom; y++) {
dy = (Double)y;
for(x=icurr_left; x<icurr_right; x++, icurr_pel++) {
dx = (Double)x;
dt = dTM[0] * dx + dTM[1] * dy + dTM[2];
du = -dTM[1] * dx + dTM[0] * dy + dTM[3];
dx1 = dt;
dy1 = du;
x1 = (Int) dx1;
y1 = (Int) dy1;
if(x1>iref_left && (x1+1)<iref_right && y1>iref_top && (y1+1)<iref_bottom) {
iref_pel = x1 + iref_width * y1;
iref_pel1 = x1+1 + iref_width * y1;
iref_pel2 = x1 + iref_width * (y1+1);
iref_pel3 = x1+1 + iref_width * (y1+1);
istop++;
dk = dx1 - x1;
d1mk = 1. - dk;
dl = dy1 - y1;
d1ml = 1. -dl;
dI1x1y1[0] = pref_work[iref_pel];
dI1x1y1[1] = pref_work[iref_pel1];
dI1x1y1[2] = pref_work[iref_pel2];
dI1x1y1[3] = pref_work[iref_pel3];
dI1 = d1mk*d1ml*dI1x1y1[0] + dk*d1ml*dI1x1y1[1] +
d1mk*dl*dI1x1y1[2] + dk*dl*dI1x1y1[3];
de = dI1 - pcurr_work[icurr_pel];
if(iite==0)
iperror_histgram[(Int)(fabs(de))]++;
if(fabs(de) < ithreshold_T) {
dI1dx = (dI1x1y1[1]-dI1x1y1[0])*d1ml + (dI1x1y1[3]-dI1x1y1[2])*dl;
dI1dy = (dI1x1y1[2]-dI1x1y1[0])*d1mk + (dI1x1y1[3]-dI1x1y1[1])*dk;
ddedm[0] = dx * dI1dx + dy * dI1dy;
ddedm[1] = dy * dI1dx - dx * dI1dy;
ddedm[2] = dI1dx;
ddedm[3] = dI1dy;
db[0] += -de*ddedm[0];
db[1] += -de*ddedm[1];
db[2] += -de*ddedm[2];
db[3] += -de*ddedm[3];
for(yj=0; yj<4; yj++)
for(xi=0; xi<=yj; xi++)
dA[yj*4+xi] += ddedm[yj] * ddedm[xi];
dE2 += de*de;
} // threshold
} // limit of ref_luma area
} // x
icurr_pel += icurr_offset;
} // y
}else{
for(y=icurr_top; y<icurr_bottom; y++) {
dy = (Double)y;
for(x=icurr_left; x<icurr_right; x++, icurr_pel++) {
if(pcurr_alpha_work[icurr_pel]) {
dx = (Double)x;
dt = dTM[0] * dx + dTM[1] * dy + dTM[2];
du = -dTM[1] * dx + dTM[0] * dy + dTM[3];
dx1 = dt;
dy1 = du;
x1 = (Int) dx1;
y1 = (Int) dy1;
if(x1>iref_left && (x1+1)<iref_right && y1>iref_top && (y1+1)<iref_bottom) {
iref_pel = x1 + iref_width * y1;
iref_pel1 = x1+1 + iref_width * y1;
iref_pel2 = x1 + iref_width * (y1+1);
iref_pel3 = x1+1 + iref_width * (y1+1);
if(pref_alpha_work[iref_pel] && pref_alpha_work[iref_pel1] &&
pref_alpha_work[iref_pel2] && pref_alpha_work[iref_pel3]) {
istop++;
dk = dx1 - x1;
d1mk = 1. - dk;
dl = dy1 - y1;
d1ml = 1. -dl;
dI1x1y1[0] = pref_work[iref_pel];
dI1x1y1[1] = pref_work[iref_pel1];
dI1x1y1[2] = pref_work[iref_pel2];
dI1x1y1[3] = pref_work[iref_pel3];
dI1 = d1mk*d1ml*dI1x1y1[0] + dk*d1ml*dI1x1y1[1] +
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