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vpx/vp8/encoder/mcomp.c
Ronald S. Bultje 5d4cffb35f Superblock coding. 
This commit adds a pick_sb_mode() function which selects the best 32x32
superblock coding mode. Then it selects the best per-MB modes, compares
the two and encodes that in the bitstream.

The bitstream coding is rather simplistic right now. At the SB level,
we code a bit to indicate whether this block uses SB-coding (32x32
prediction) or MB-coding (anything else), and then we follow with the
actual modes. This could and should be modified in the future, but is
omitted from this commit because it will likely involve reorganizing
much more code rather than just adding SB coding, so it's better to let
that be judged on its own merits.

Gains on derf: about even, YT/HD: +0.75%, STD/HD: +1.5%.

Change-Id: Iae313a7cbd8f75b3c66d04a68b991cb096eaaba6
2012-08-20 14:43:34 -07:00

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/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vp8/encoder/onyx_int.h"
#include "mcomp.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_ports/config.h"
#include <stdio.h>
#include <limits.h>
#include <math.h>
#include "vp8/common/findnearmv.h"
#ifdef ENTROPY_STATS
static int mv_ref_ct [31] [4] [2];
static int mv_mode_cts [4] [2];
#endif
void vp8_clamp_mv_min_max(MACROBLOCK *x, int_mv *ref_mv) {
int col_min = (ref_mv->as_mv.col >> 3) - MAX_FULL_PEL_VAL +
((ref_mv->as_mv.col & 7) ? 1 : 0);
int row_min = (ref_mv->as_mv.row >> 3) - MAX_FULL_PEL_VAL +
((ref_mv->as_mv.row & 7) ? 1 : 0);
int col_max = (ref_mv->as_mv.col >> 3) + MAX_FULL_PEL_VAL;
int row_max = (ref_mv->as_mv.row >> 3) + MAX_FULL_PEL_VAL;
/* Get intersection of UMV window and valid MV window to reduce # of checks in diamond search. */
if (x->mv_col_min < col_min)
x->mv_col_min = col_min;
if (x->mv_col_max > col_max)
x->mv_col_max = col_max;
if (x->mv_row_min < row_min)
x->mv_row_min = row_min;
if (x->mv_row_max > row_max)
x->mv_row_max = row_max;
}
int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2],
int Weight, int ishp) {
// MV costing is based on the distribution of vectors in the previous frame
// and as such will tend to over state the cost of vectors. In addition
// coding a new vector can have a knock on effect on the cost of subsequent
// vectors and the quality of prediction from NEAR and NEAREST for subsequent
// blocks. The "Weight" parameter allows, to a limited extent, for some
// account to be taken of these factors.
return ((mvcost[0][(mv->as_mv.row - ref->as_mv.row) >> (ishp == 0)] +
mvcost[1][(mv->as_mv.col - ref->as_mv.col) >> (ishp == 0)])
* Weight) >> 7;
}
static int mv_err_cost(int_mv *mv, int_mv *ref, int *mvcost[2],
int error_per_bit, int ishp) {
// Ignore costing if mvcost is NULL
if (mvcost)
return ((mvcost[0][(mv->as_mv.row - ref->as_mv.row) >> (ishp == 0)] +
mvcost[1][(mv->as_mv.col - ref->as_mv.col) >> (ishp == 0)])
* error_per_bit + 128) >> 8;
return 0;
}
static int mvsad_err_cost(int_mv *mv, int_mv *ref, int *mvsadcost[2],
int error_per_bit) {
// Calculate sad error cost on full pixel basis.
// Ignore costing if mvcost is NULL
if (mvsadcost)
return ((mvsadcost[0][(mv->as_mv.row - ref->as_mv.row)] +
mvsadcost[1][(mv->as_mv.col - ref->as_mv.col)])
* error_per_bit + 128) >> 8;
return 0;
}
void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride) {
int Len;
int search_site_count = 0;
// Generate offsets for 4 search sites per step.
Len = MAX_FIRST_STEP;
x->ss[search_site_count].mv.col = 0;
x->ss[search_site_count].mv.row = 0;
x->ss[search_site_count].offset = 0;
search_site_count++;
while (Len > 0) {
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = 0;
x->ss[search_site_count].mv.row = -Len;
x->ss[search_site_count].offset = -Len * stride;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = 0;
x->ss[search_site_count].mv.row = Len;
x->ss[search_site_count].offset = Len * stride;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = -Len;
x->ss[search_site_count].mv.row = 0;
x->ss[search_site_count].offset = -Len;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = Len;
x->ss[search_site_count].mv.row = 0;
x->ss[search_site_count].offset = Len;
search_site_count++;
// Contract.
Len /= 2;
}
x->ss_count = search_site_count;
x->searches_per_step = 4;
}
void vp8_init3smotion_compensation(MACROBLOCK *x, int stride) {
int Len;
int search_site_count = 0;
// Generate offsets for 8 search sites per step.
Len = MAX_FIRST_STEP;
x->ss[search_site_count].mv.col = 0;
x->ss[search_site_count].mv.row = 0;
x->ss[search_site_count].offset = 0;
search_site_count++;
while (Len > 0) {
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = 0;
x->ss[search_site_count].mv.row = -Len;
x->ss[search_site_count].offset = -Len * stride;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = 0;
x->ss[search_site_count].mv.row = Len;
x->ss[search_site_count].offset = Len * stride;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = -Len;
x->ss[search_site_count].mv.row = 0;
x->ss[search_site_count].offset = -Len;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = Len;
x->ss[search_site_count].mv.row = 0;
x->ss[search_site_count].offset = Len;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = -Len;
x->ss[search_site_count].mv.row = -Len;
x->ss[search_site_count].offset = -Len * stride - Len;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = Len;
x->ss[search_site_count].mv.row = -Len;
x->ss[search_site_count].offset = -Len * stride + Len;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = -Len;
x->ss[search_site_count].mv.row = Len;
x->ss[search_site_count].offset = Len * stride - Len;
search_site_count++;
// Compute offsets for search sites.
x->ss[search_site_count].mv.col = Len;
x->ss[search_site_count].mv.row = Len;
x->ss[search_site_count].offset = Len * stride + Len;
search_site_count++;
// Contract.
Len /= 2;
}
x->ss_count = search_site_count;
x->searches_per_step = 8;
}
/*
* To avoid the penalty for crossing cache-line read, preload the reference
* area in a small buffer, which is aligned to make sure there won't be crossing
* cache-line read while reading from this buffer. This reduced the cpu
* cycles spent on reading ref data in sub-pixel filter functions.
* TODO: Currently, since sub-pixel search range here is -3 ~ 3, copy 22 rows x
* 32 cols area that is enough for 16x16 macroblock. Later, for SPLITMV, we
* could reduce the area.
*/
#define PRE(r,c) (y + (((r)>>2) * y_stride + ((c)>>2) -(offset))) // pointer to predictor base of a motionvector
#define SP(x) (((x)&3)<<2) // convert motion vector component to offset for svf calc
#define MVC(r,c) (mvcost ? ((mvcost[0][(r)-rr] + mvcost[1][(c)-rc]) * error_per_bit + 128 )>>8 : 0) // estimated cost of a motion vector (r,c)
#define DIST(r,c) vfp->svf( PRE(r,c), y_stride, SP(c),SP(r), z,b->src_stride,&sse) // returns subpixel variance error function.
#define ERR(r,c) (MVC(r,c)+DIST(r,c)) // returns distortion + motion vector cost
#define IFMVCV(r,c,s,e) if ( c >= minc && c <= maxc && r >= minr && r <= maxr) s else e;
#define PREHP(r,c) (y + (((r)>>3) * y_stride + ((c)>>3) -(offset))) // pointer to predictor base of a motionvector
#define SPHP(x) (((x)&7)<<1) // convert motion vector component to offset for svf calc
#define DISTHP(r,c) vfp->svf( PREHP(r,c), y_stride, SPHP(c),SPHP(r), z,b->src_stride,&sse) // returns subpixel variance error function.
#define ERRHP(r,c) (MVC(r,c)+DISTHP(r,c)) // returns distortion + motion vector cost
#define CHECK_BETTER(v,r,c) IFMVCV(r,c,{thismse = ((xd->allow_high_precision_mv)?DISTHP(r,c):DIST(r,c)); if((v = (MVC(r,c)+thismse)) < besterr) { besterr = v; br=r; bc=c; *distortion = thismse; *sse1 = sse; }}, v=INT_MAX;)// checks if (r,c) has better score than previous best
#define MIN(x,y) (((x)<(y))?(x):(y))
#define MAX(x,y) (((x)>(y))?(x):(y))
int vp8_find_best_sub_pixel_step_iteratively(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp8_variance_fn_ptr_t *vfp,
int *mvcost[2], int *distortion,
unsigned int *sse1) {
unsigned char *z = (*(b->base_src) + b->src);
MACROBLOCKD *xd = &x->e_mbd;
int rr, rc, br, bc, hstep;
int tr, tc;
unsigned int besterr = INT_MAX;
unsigned int left, right, up, down, diag;
unsigned int sse;
unsigned int whichdir;
unsigned int halfiters = 4;
unsigned int quarteriters = 4;
unsigned int eighthiters = 4;
int thismse;
int maxc, minc, maxr, minr;
int y_stride;
int offset;
#if !CONFIG_SUPERBLOCKS && (ARCH_X86 || ARCH_X86_64)
unsigned char *y0 = *(d->base_pre) + d->pre + (bestmv->as_mv.row) * d->pre_stride + bestmv->as_mv.col;
unsigned char *y;
int buf_r1, buf_r2, buf_c1, buf_c2;
// Clamping to avoid out-of-range data access
buf_r1 = ((bestmv->as_mv.row - INTERP_EXTEND) < x->mv_row_min) ?
(bestmv->as_mv.row - x->mv_row_min) : INTERP_EXTEND - 1;
buf_r2 = ((bestmv->as_mv.row + INTERP_EXTEND) > x->mv_row_max) ?
(x->mv_row_max - bestmv->as_mv.row) : INTERP_EXTEND - 1;
buf_c1 = ((bestmv->as_mv.col - INTERP_EXTEND) < x->mv_col_min) ?
(bestmv->as_mv.col - x->mv_col_min) : INTERP_EXTEND - 1;
buf_c2 = ((bestmv->as_mv.col + INTERP_EXTEND) > x->mv_col_max) ?
(x->mv_col_max - bestmv->as_mv.col) : INTERP_EXTEND - 1;
y_stride = 32;
/* Copy to intermediate buffer before searching. */
vfp->copymem(y0 - buf_c1 - d->pre_stride * buf_r1, d->pre_stride, xd->y_buf, y_stride, 16 + buf_r1 + buf_r2);
y = xd->y_buf + y_stride * buf_r1 + buf_c1;
#else
unsigned char *y = *(d->base_pre) + d->pre + (bestmv->as_mv.row) * d->pre_stride + bestmv->as_mv.col;
y_stride = d->pre_stride;
#endif
if (xd->allow_high_precision_mv) {
rr = ref_mv->as_mv.row;
rc = ref_mv->as_mv.col;
br = bestmv->as_mv.row << 3;
bc = bestmv->as_mv.col << 3;
hstep = 4;
minc = MAX(x->mv_col_min << 3, (ref_mv->as_mv.col) - ((1 << mvlong_width_hp) - 1));
maxc = MIN(x->mv_col_max << 3, (ref_mv->as_mv.col) + ((1 << mvlong_width_hp) - 1));
minr = MAX(x->mv_row_min << 3, (ref_mv->as_mv.row) - ((1 << mvlong_width_hp) - 1));
maxr = MIN(x->mv_row_max << 3, (ref_mv->as_mv.row) + ((1 << mvlong_width_hp) - 1));
} else {
rr = ref_mv->as_mv.row >> 1;
rc = ref_mv->as_mv.col >> 1;
br = bestmv->as_mv.row << 2;
bc = bestmv->as_mv.col << 2;
hstep = 2;
minc = MAX(x->mv_col_min << 2, (ref_mv->as_mv.col >> 1) - ((1 << mvlong_width) - 1));
maxc = MIN(x->mv_col_max << 2, (ref_mv->as_mv.col >> 1) + ((1 << mvlong_width) - 1));
minr = MAX(x->mv_row_min << 2, (ref_mv->as_mv.row >> 1) - ((1 << mvlong_width) - 1));
maxr = MIN(x->mv_row_max << 2, (ref_mv->as_mv.row >> 1) + ((1 << mvlong_width) - 1));
}
tr = br;
tc = bc;
offset = (bestmv->as_mv.row) * y_stride + bestmv->as_mv.col;
// central mv
bestmv->as_mv.row <<= 3;
bestmv->as_mv.col <<= 3;
// calculate central point error
besterr = vfp->vf(y, y_stride, z, b->src_stride, sse1);
*distortion = besterr;
besterr += mv_err_cost(bestmv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
// TODO: Each subsequent iteration checks at least one point in
// common with the last iteration could be 2 ( if diag selected)
while (--halfiters) {
// 1/2 pel
CHECK_BETTER(left, tr, tc - hstep);
CHECK_BETTER(right, tr, tc + hstep);
CHECK_BETTER(up, tr - hstep, tc);
CHECK_BETTER(down, tr + hstep, tc);
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
switch (whichdir) {
case 0:
CHECK_BETTER(diag, tr - hstep, tc - hstep);
break;
case 1:
CHECK_BETTER(diag, tr - hstep, tc + hstep);
break;
case 2:
CHECK_BETTER(diag, tr + hstep, tc - hstep);
break;
case 3:
CHECK_BETTER(diag, tr + hstep, tc + hstep);
break;
}
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
// TODO: Each subsequent iteration checks at least one point in common with
// the last iteration could be 2 ( if diag selected) 1/4 pel
hstep >>= 1;
while (--quarteriters) {
CHECK_BETTER(left, tr, tc - hstep);
CHECK_BETTER(right, tr, tc + hstep);
CHECK_BETTER(up, tr - hstep, tc);
CHECK_BETTER(down, tr + hstep, tc);
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
switch (whichdir) {
case 0:
CHECK_BETTER(diag, tr - hstep, tc - hstep);
break;
case 1:
CHECK_BETTER(diag, tr - hstep, tc + hstep);
break;
case 2:
CHECK_BETTER(diag, tr + hstep, tc - hstep);
break;
case 3:
CHECK_BETTER(diag, tr + hstep, tc + hstep);
break;
}
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
if (x->e_mbd.allow_high_precision_mv) {
hstep >>= 1;
while (--eighthiters) {
CHECK_BETTER(left, tr, tc - hstep);
CHECK_BETTER(right, tr, tc + hstep);
CHECK_BETTER(up, tr - hstep, tc);
CHECK_BETTER(down, tr + hstep, tc);
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
switch (whichdir) {
case 0:
CHECK_BETTER(diag, tr - hstep, tc - hstep);
break;
case 1:
CHECK_BETTER(diag, tr - hstep, tc + hstep);
break;
case 2:
CHECK_BETTER(diag, tr + hstep, tc - hstep);
break;
case 3:
CHECK_BETTER(diag, tr + hstep, tc + hstep);
break;
}
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
}
if (x->e_mbd.allow_high_precision_mv) {
bestmv->as_mv.row = br;
bestmv->as_mv.col = bc;
} else {
bestmv->as_mv.row = br << 1;
bestmv->as_mv.col = bc << 1;
}
if ((abs(bestmv->as_mv.col - ref_mv->as_mv.col) > (MAX_FULL_PEL_VAL << 3)) ||
(abs(bestmv->as_mv.row - ref_mv->as_mv.row) > (MAX_FULL_PEL_VAL << 3)))
return INT_MAX;
return besterr;
}
#undef MVC
#undef PRE
#undef SP
#undef DIST
#undef IFMVCV
#undef ERR
#undef CHECK_BETTER
#undef MIN
#undef MAX
#undef PREHP
#undef DPHP
#undef DISTHP
#undef ERRHP
#define SP(x) (((x)&7)<<1) // convert motion vector component to offset for svf calc
int vp8_find_best_sub_pixel_step(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp8_variance_fn_ptr_t *vfp,
int *mvcost[2], int *distortion,
unsigned int *sse1) {
int bestmse = INT_MAX;
int_mv startmv;
int_mv this_mv;
int_mv orig_mv;
int yrow_movedback = 0, ycol_movedback = 0;
unsigned char *z = (*(b->base_src) + b->src);
int left, right, up, down, diag;
unsigned int sse;
int whichdir;
int thismse;
int y_stride;
MACROBLOCKD *xd = &x->e_mbd;
#if ARCH_X86 || ARCH_X86_64
unsigned char *y0 = *(d->base_pre) + d->pre + (bestmv->as_mv.row) * d->pre_stride + bestmv->as_mv.col;
unsigned char *y;
y_stride = 32;
/* Copy 18 rows x 32 cols area to intermediate buffer before searching. */
vfp->copymem(y0 - 1 - d->pre_stride, d->pre_stride, xd->y_buf, y_stride, 18);
y = xd->y_buf + y_stride + 1;
#else
unsigned char *y = *(d->base_pre) + d->pre + (bestmv->as_mv.row) * d->pre_stride + bestmv->as_mv.col;
y_stride = d->pre_stride;
#endif
// central mv
bestmv->as_mv.row <<= 3;
bestmv->as_mv.col <<= 3;
startmv = *bestmv;
orig_mv = *bestmv;
// calculate central point error
bestmse = vfp->vf(y, y_stride, z, b->src_stride, sse1);
*distortion = bestmse;
bestmse += mv_err_cost(bestmv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
// go left then right and check error
this_mv.as_mv.row = startmv.as_mv.row;
this_mv.as_mv.col = ((startmv.as_mv.col - 8) | 4);
thismse = vfp->svf_halfpix_h(y - 1, y_stride, z, b->src_stride, &sse);
left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (left < bestmse) {
*bestmv = this_mv;
bestmse = left;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.col += 8;
thismse = vfp->svf_halfpix_h(y, y_stride, z, b->src_stride, &sse);
right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (right < bestmse) {
*bestmv = this_mv;
bestmse = right;
*distortion = thismse;
*sse1 = sse;
}
// go up then down and check error
this_mv.as_mv.col = startmv.as_mv.col;
this_mv.as_mv.row = ((startmv.as_mv.row - 8) | 4);
thismse = vfp->svf_halfpix_v(y - y_stride, y_stride, z, b->src_stride, &sse);
up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (up < bestmse) {
*bestmv = this_mv;
bestmse = up;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.row += 8;
thismse = vfp->svf_halfpix_v(y, y_stride, z, b->src_stride, &sse);
down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (down < bestmse) {
*bestmv = this_mv;
bestmse = down;
*distortion = thismse;
*sse1 = sse;
}
// now check 1 more diagonal
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
// for(whichdir =0;whichdir<4;whichdir++)
// {
this_mv = startmv;
switch (whichdir) {
case 0:
this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
thismse = vfp->svf_halfpix_hv(y - 1 - y_stride, y_stride, z, b->src_stride, &sse);
break;
case 1:
this_mv.as_mv.col += 4;
this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
thismse = vfp->svf_halfpix_hv(y - y_stride, y_stride, z, b->src_stride, &sse);
break;
case 2:
this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
this_mv.as_mv.row += 4;
thismse = vfp->svf_halfpix_hv(y - 1, y_stride, z, b->src_stride, &sse);
break;
case 3:
default:
this_mv.as_mv.col += 4;
this_mv.as_mv.row += 4;
thismse = vfp->svf_halfpix_hv(y, y_stride, z, b->src_stride, &sse);
break;
}
diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (diag < bestmse) {
*bestmv = this_mv;
bestmse = diag;
*distortion = thismse;
*sse1 = sse;
}
// }
// time to check quarter pels.
if (bestmv->as_mv.row < startmv.as_mv.row) {
y -= y_stride;
yrow_movedback = 1;
}
if (bestmv->as_mv.col < startmv.as_mv.col) {
y--;
ycol_movedback = 1;
}
startmv = *bestmv;
// go left then right and check error
this_mv.as_mv.row = startmv.as_mv.row;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col = startmv.as_mv.col - 2;
thismse = vfp->svf(y, y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - 1, y_stride, SP(6), SP(this_mv.as_mv.row), z,
b->src_stride, &sse);
}
left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (left < bestmse) {
*bestmv = this_mv;
bestmse = left;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.col += 4;
thismse = vfp->svf(y, y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (right < bestmse) {
*bestmv = this_mv;
bestmse = right;
*distortion = thismse;
*sse1 = sse;
}
// go up then down and check error
this_mv.as_mv.col = startmv.as_mv.col;
if (startmv.as_mv.row & 7) {
this_mv.as_mv.row = startmv.as_mv.row - 2;
thismse = vfp->svf(y, y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
} else {
this_mv.as_mv.row = (startmv.as_mv.row - 8) | 6;
thismse = vfp->svf(y - y_stride, y_stride, SP(this_mv.as_mv.col), SP(6),
z, b->src_stride, &sse);
}
up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (up < bestmse) {
*bestmv = this_mv;
bestmse = up;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.row += 4;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (down < bestmse) {
*bestmv = this_mv;
bestmse = down;
*distortion = thismse;
*sse1 = sse;
}
// now check 1 more diagonal
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
// for(whichdir=0;whichdir<4;whichdir++)
// {
this_mv = startmv;
switch (whichdir) {
case 0:
if (startmv.as_mv.row & 7) {
this_mv.as_mv.row -= 2;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col -= 2;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - 1, y_stride, SP(6), SP(this_mv.as_mv.row), z, b->src_stride, &sse);;
}
} else {
this_mv.as_mv.row = (startmv.as_mv.row - 8) | 6;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col -= 2;
thismse = vfp->svf(y - y_stride, y_stride, SP(this_mv.as_mv.col), SP(6), z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - y_stride - 1, y_stride, SP(6), SP(6), z, b->src_stride, &sse);
}
}
break;
case 1:
this_mv.as_mv.col += 2;
if (startmv.as_mv.row & 7) {
this_mv.as_mv.row -= 2;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
} else {
this_mv.as_mv.row = (startmv.as_mv.row - 8) | 6;
thismse = vfp->svf(y - y_stride, y_stride, SP(this_mv.as_mv.col), SP(6), z, b->src_stride, &sse);
}
break;
case 2:
this_mv.as_mv.row += 2;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col -= 2;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - 1, y_stride, SP(6), SP(this_mv.as_mv.row), z,
b->src_stride, &sse);
}
break;
case 3:
this_mv.as_mv.col += 2;
this_mv.as_mv.row += 2;
thismse = vfp->svf(y, y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
break;
}
diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (diag < bestmse) {
*bestmv = this_mv;
bestmse = diag;
*distortion = thismse;
*sse1 = sse;
}
if (!x->e_mbd.allow_high_precision_mv)
return bestmse;
/* Now do 1/8th pixel */
if (bestmv->as_mv.row < orig_mv.as_mv.row && !yrow_movedback) {
y -= y_stride;
yrow_movedback = 1;
}
if (bestmv->as_mv.col < orig_mv.as_mv.col && !ycol_movedback) {
y--;
ycol_movedback = 1;
}
startmv = *bestmv;
// go left then right and check error
this_mv.as_mv.row = startmv.as_mv.row;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col = startmv.as_mv.col - 1;
thismse = vfp->svf(y, y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 7;
thismse = vfp->svf(y - 1, y_stride, SP(7), SP(this_mv.as_mv.row),
z, b->src_stride, &sse);
}
left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (left < bestmse) {
*bestmv = this_mv;
bestmse = left;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.col += 2;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit, xd->allow_high_precision_mv);
if (right < bestmse) {
*bestmv = this_mv;
bestmse = right;
*distortion = thismse;
*sse1 = sse;
}
// go up then down and check error
this_mv.as_mv.col = startmv.as_mv.col;
if (startmv.as_mv.row & 7) {
this_mv.as_mv.row = startmv.as_mv.row - 1;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
} else {
this_mv.as_mv.row = (startmv.as_mv.row - 8) | 7;
thismse = vfp->svf(y - y_stride, y_stride, SP(this_mv.as_mv.col), SP(7), z, b->src_stride, &sse);
}
up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit, xd->allow_high_precision_mv);
if (up < bestmse) {
*bestmv = this_mv;
bestmse = up;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.row += 2;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit, xd->allow_high_precision_mv);
if (down < bestmse) {
*bestmv = this_mv;
bestmse = down;
*distortion = thismse;
*sse1 = sse;
}
// now check 1 more diagonal
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
// for(whichdir=0;whichdir<4;whichdir++)
// {
this_mv = startmv;
switch (whichdir) {
case 0:
if (startmv.as_mv.row & 7) {
this_mv.as_mv.row -= 1;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col -= 1;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 7;
thismse = vfp->svf(y - 1, y_stride, SP(7), SP(this_mv.as_mv.row), z, b->src_stride, &sse);;
}
} else {
this_mv.as_mv.row = (startmv.as_mv.row - 8) | 7;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col -= 1;
thismse = vfp->svf(y - y_stride, y_stride, SP(this_mv.as_mv.col), SP(7), z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 7;
thismse = vfp->svf(y - y_stride - 1, y_stride, SP(7), SP(7), z, b->src_stride, &sse);
}
}
break;
case 1:
this_mv.as_mv.col += 1;
if (startmv.as_mv.row & 7) {
this_mv.as_mv.row -= 1;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
} else {
this_mv.as_mv.row = (startmv.as_mv.row - 8) | 7;
thismse = vfp->svf(y - y_stride, y_stride, SP(this_mv.as_mv.col), SP(7), z, b->src_stride, &sse);
}
break;
case 2:
this_mv.as_mv.row += 1;
if (startmv.as_mv.col & 7) {
this_mv.as_mv.col -= 1;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
} else {
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 7;
thismse = vfp->svf(y - 1, y_stride, SP(7), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
}
break;
case 3:
this_mv.as_mv.col += 1;
this_mv.as_mv.row += 1;
thismse = vfp->svf(y, y_stride, SP(this_mv.as_mv.col), SP(this_mv.as_mv.row), z, b->src_stride, &sse);
break;
}
diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit, xd->allow_high_precision_mv);
if (diag < bestmse) {
*bestmv = this_mv;
bestmse = diag;
*distortion = thismse;
*sse1 = sse;
}
return bestmse;
}
#undef SP
int vp8_find_best_half_pixel_step(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp8_variance_fn_ptr_t *vfp,
int *mvcost[2], int *distortion,
unsigned int *sse1) {
int bestmse = INT_MAX;
int_mv startmv;
int_mv this_mv;
unsigned char *z = (*(b->base_src) + b->src);
int left, right, up, down, diag;
unsigned int sse;
int whichdir;
int thismse;
int y_stride;
MACROBLOCKD *xd = &x->e_mbd;
#if ARCH_X86 || ARCH_X86_64
unsigned char *y0 = *(d->base_pre) + d->pre +
(bestmv->as_mv.row) * d->pre_stride + bestmv->as_mv.col;
unsigned char *y;
y_stride = 32;
/* Copy 18 rows x 32 cols area to intermediate buffer before searching. */
vfp->copymem(y0 - 1 - d->pre_stride, d->pre_stride, xd->y_buf, y_stride, 18);
y = xd->y_buf + y_stride + 1;
#else
unsigned char *y = *(d->base_pre) + d->pre +
(bestmv->as_mv.row) * d->pre_stride + bestmv->as_mv.col;
y_stride = d->pre_stride;
#endif
// central mv
bestmv->as_mv.row <<= 3;
bestmv->as_mv.col <<= 3;
startmv = *bestmv;
// calculate central point error
bestmse = vfp->vf(y, y_stride, z, b->src_stride, sse1);
*distortion = bestmse;
bestmse += mv_err_cost(bestmv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
// go left then right and check error
this_mv.as_mv.row = startmv.as_mv.row;
this_mv.as_mv.col = ((startmv.as_mv.col - 8) | 4);
thismse = vfp->svf_halfpix_h(y - 1, y_stride, z, b->src_stride, &sse);
left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (left < bestmse) {
*bestmv = this_mv;
bestmse = left;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.col += 8;
thismse = vfp->svf_halfpix_h(y, y_stride, z, b->src_stride, &sse);
right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (right < bestmse) {
*bestmv = this_mv;
bestmse = right;
*distortion = thismse;
*sse1 = sse;
}
// go up then down and check error
this_mv.as_mv.col = startmv.as_mv.col;
this_mv.as_mv.row = ((startmv.as_mv.row - 8) | 4);
thismse = vfp->svf_halfpix_v(y - y_stride, y_stride, z, b->src_stride, &sse);
up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (up < bestmse) {
*bestmv = this_mv;
bestmse = up;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.row += 8;
thismse = vfp->svf_halfpix_v(y, y_stride, z, b->src_stride, &sse);
down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (down < bestmse) {
*bestmv = this_mv;
bestmse = down;
*distortion = thismse;
*sse1 = sse;
}
// now check 1 more diagonal -
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
this_mv = startmv;
switch (whichdir) {
case 0:
this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
thismse = vfp->svf_halfpix_hv(y - 1 - y_stride, y_stride, z, b->src_stride, &sse);
break;
case 1:
this_mv.as_mv.col += 4;
this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
thismse = vfp->svf_halfpix_hv(y - y_stride, y_stride, z, b->src_stride, &sse);
break;
case 2:
this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
this_mv.as_mv.row += 4;
thismse = vfp->svf_halfpix_hv(y - 1, y_stride, z, b->src_stride, &sse);
break;
case 3:
default:
this_mv.as_mv.col += 4;
this_mv.as_mv.row += 4;
thismse = vfp->svf_halfpix_hv(y, y_stride, z, b->src_stride, &sse);
break;
}
diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit,
xd->allow_high_precision_mv);
if (diag < bestmse) {
*bestmv = this_mv;
bestmse = diag;
*distortion = thismse;
*sse1 = sse;
}
return bestmse;
}
#define CHECK_BOUNDS(range) \
{\
all_in = 1;\
all_in &= ((br-range) >= x->mv_row_min);\
all_in &= ((br+range) <= x->mv_row_max);\
all_in &= ((bc-range) >= x->mv_col_min);\
all_in &= ((bc+range) <= x->mv_col_max);\
}
#define CHECK_POINT \
{\
if (this_mv.as_mv.col < x->mv_col_min) continue;\
if (this_mv.as_mv.col > x->mv_col_max) continue;\
if (this_mv.as_mv.row < x->mv_row_min) continue;\
if (this_mv.as_mv.row > x->mv_row_max) continue;\
}
#define CHECK_BETTER \
{\
if (thissad < bestsad)\
{\
thissad += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, sad_per_bit);\
if (thissad < bestsad)\
{\
bestsad = thissad;\
best_site = i;\
}\
}\
}
static const MV next_chkpts[6][3] = {
{{ -2, 0}, { -1, -2}, {1, -2}},
{{ -1, -2}, {1, -2}, {2, 0}},
{{1, -2}, {2, 0}, {1, 2}},
{{2, 0}, {1, 2}, { -1, 2}},
{{1, 2}, { -1, 2}, { -2, 0}},
{{ -1, 2}, { -2, 0}, { -1, -2}}
};
int vp8_hex_search
(
MACROBLOCK *x,
BLOCK *b,
BLOCKD *d,
int_mv *ref_mv,
int_mv *best_mv,
int search_param,
int sad_per_bit,
const vp8_variance_fn_ptr_t *vfp,
int *mvsadcost[2],
int *mvcost[2],
int_mv *center_mv
) {
MV hex[6] = { { -1, -2}, {1, -2}, {2, 0}, {1, 2}, { -1, 2}, { -2, 0} };
MV neighbors[4] = {{0, -1}, { -1, 0}, {1, 0}, {0, 1}};
int i, j;
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
int in_what_stride = d->pre_stride;
int br, bc;
int_mv this_mv;
unsigned int bestsad = 0x7fffffff;
unsigned int thissad;
unsigned char *base_offset;
unsigned char *this_offset;
int k = -1;
int all_in;
int best_site = -1;
int_mv fcenter_mv;
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
// adjust ref_mv to make sure it is within MV range
vp8_clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
br = ref_mv->as_mv.row;
bc = ref_mv->as_mv.col;
// Work out the start point for the search
base_offset = (unsigned char *)(*(d->base_pre) + d->pre);
this_offset = base_offset + (br * (d->pre_stride)) + bc;
this_mv.as_mv.row = br;
this_mv.as_mv.col = bc;
bestsad = vfp->sdf(what, what_stride, this_offset,
in_what_stride, 0x7fffffff)
+ mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, sad_per_bit);
// hex search
// j=0
CHECK_BOUNDS(2)
if (all_in) {
for (i = 0; i < 6; i++) {
this_mv.as_mv.row = br + hex[i].row;
this_mv.as_mv.col = bc + hex[i].col;
this_offset = base_offset + (this_mv.as_mv.row * in_what_stride) + this_mv.as_mv.col;
thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride, bestsad);
CHECK_BETTER
}
} else {
for (i = 0; i < 6; i++) {
this_mv.as_mv.row = br + hex[i].row;
this_mv.as_mv.col = bc + hex[i].col;
CHECK_POINT
this_offset = base_offset + (this_mv.as_mv.row * in_what_stride) + this_mv.as_mv.col;
thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride, bestsad);
CHECK_BETTER
}
}
if (best_site == -1)
goto cal_neighbors;
else {
br += hex[best_site].row;
bc += hex[best_site].col;
k = best_site;
}
for (j = 1; j < 127; j++) {
best_site = -1;
CHECK_BOUNDS(2)
if (all_in) {
for (i = 0; i < 3; i++) {
this_mv.as_mv.row = br + next_chkpts[k][i].row;
this_mv.as_mv.col = bc + next_chkpts[k][i].col;
this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride, bestsad);
CHECK_BETTER
}
} else {
for (i = 0; i < 3; i++) {
this_mv.as_mv.row = br + next_chkpts[k][i].row;
this_mv.as_mv.col = bc + next_chkpts[k][i].col;
CHECK_POINT
this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride, bestsad);
CHECK_BETTER
}
}
if (best_site == -1)
break;
else {
br += next_chkpts[k][best_site].row;
bc += next_chkpts[k][best_site].col;
k += 5 + best_site;
if (k >= 12) k -= 12;
else if (k >= 6) k -= 6;
}
}
// check 4 1-away neighbors
cal_neighbors:
for (j = 0; j < 32; j++) {
best_site = -1;
CHECK_BOUNDS(1)
if (all_in) {
for (i = 0; i < 4; i++) {
this_mv.as_mv.row = br + neighbors[i].row;
this_mv.as_mv.col = bc + neighbors[i].col;
this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride, bestsad);
CHECK_BETTER
}
} else {
for (i = 0; i < 4; i++) {
this_mv.as_mv.row = br + neighbors[i].row;
this_mv.as_mv.col = bc + neighbors[i].col;
CHECK_POINT
this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride, bestsad);
CHECK_BETTER
}
}
if (best_site == -1)
break;
else {
br += neighbors[best_site].row;
bc += neighbors[best_site].col;
}
}
best_mv->as_mv.row = br;
best_mv->as_mv.col = bc;
return bestsad;
}
#undef CHECK_BOUNDS
#undef CHECK_POINT
#undef CHECK_BETTER
int vp8_diamond_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
int_mv *ref_mv, int_mv *best_mv,
int search_param, int sad_per_bit, int *num00,
vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
int_mv *center_mv) {
int i, j, step;
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
unsigned char *in_what;
int in_what_stride = d->pre_stride;
unsigned char *best_address;
int tot_steps;
int_mv this_mv;
int bestsad = INT_MAX;
int best_site = 0;
int last_site = 0;
int ref_row, ref_col;
int this_row_offset, this_col_offset;
search_site *ss;
unsigned char *check_here;
int thissad;
MACROBLOCKD *xd = &x->e_mbd;
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
vp8_clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
ref_row = ref_mv->as_mv.row;
ref_col = ref_mv->as_mv.col;
*num00 = 0;
best_mv->as_mv.row = ref_row;
best_mv->as_mv.col = ref_col;
// Work out the start point for the search
in_what = (unsigned char *)(*(d->base_pre) + d->pre + (ref_row * (d->pre_stride)) + ref_col);
best_address = in_what;
// Check the starting position
bestsad = fn_ptr->sdf(what, what_stride, in_what,
in_what_stride, 0x7fffffff)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
// search_param determines the length of the initial step and hence the number of iterations
// 0 = initial step (MAX_FIRST_STEP) pel : 1 = (MAX_FIRST_STEP/2) pel, 2 = (MAX_FIRST_STEP/4) pel... etc.
ss = &x->ss[search_param * x->searches_per_step];
tot_steps = (x->ss_count / x->searches_per_step) - search_param;
i = 1;
for (step = 0; step < tot_steps; step++) {
for (j = 0; j < x->searches_per_step; j++) {
// Trap illegal vectors
this_row_offset = best_mv->as_mv.row + ss[i].mv.row;
this_col_offset = best_mv->as_mv.col + ss[i].mv.col;
if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
(this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max))
{
check_here = ss[i].offset + best_address;
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
if (thissad < bestsad) {
this_mv.as_mv.row = this_row_offset;
this_mv.as_mv.col = this_col_offset;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_site = i;
}
}
}
i++;
}
if (best_site != last_site) {
best_mv->as_mv.row += ss[best_site].mv.row;
best_mv->as_mv.col += ss[best_site].mv.col;
best_address += ss[best_site].offset;
last_site = best_site;
} else if (best_address == in_what)
(*num00)++;
}
this_mv.as_mv.row = best_mv->as_mv.row << 3;
this_mv.as_mv.col = best_mv->as_mv.col << 3;
if (bestsad == INT_MAX)
return INT_MAX;
return
fn_ptr->vf(what, what_stride, best_address, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
}
int vp8_diamond_search_sadx4(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
int_mv *ref_mv, int_mv *best_mv, int search_param,
int sad_per_bit, int *num00,
vp8_variance_fn_ptr_t *fn_ptr,
int *mvcost[2], int_mv *center_mv) {
int i, j, step;
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
unsigned char *in_what;
int in_what_stride = d->pre_stride;
unsigned char *best_address;
int tot_steps;
int_mv this_mv;
int bestsad = INT_MAX;
int best_site = 0;
int last_site = 0;
int ref_row;
int ref_col;
int this_row_offset;
int this_col_offset;
search_site *ss;
unsigned char *check_here;
unsigned int thissad;
MACROBLOCKD *xd = &x->e_mbd;
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
vp8_clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
ref_row = ref_mv->as_mv.row;
ref_col = ref_mv->as_mv.col;
*num00 = 0;
best_mv->as_mv.row = ref_row;
best_mv->as_mv.col = ref_col;
// Work out the start point for the search
in_what = (unsigned char *)(*(d->base_pre) + d->pre + (ref_row * (d->pre_stride)) + ref_col);
best_address = in_what;
// Check the starting position
bestsad = fn_ptr->sdf(what, what_stride,
in_what, in_what_stride, 0x7fffffff)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
// search_param determines the length of the initial step and hence the number of iterations
// 0 = initial step (MAX_FIRST_STEP) pel : 1 = (MAX_FIRST_STEP/2) pel, 2 = (MAX_FIRST_STEP/4) pel... etc.
ss = &x->ss[search_param * x->searches_per_step];
tot_steps = (x->ss_count / x->searches_per_step) - search_param;
i = 1;
for (step = 0; step < tot_steps; step++) {
int all_in = 1, t;
// To know if all neighbor points are within the bounds, 4 bounds checking are enough instead of
// checking 4 bounds for each points.
all_in &= ((best_mv->as_mv.row + ss[i].mv.row) > x->mv_row_min);
all_in &= ((best_mv->as_mv.row + ss[i + 1].mv.row) < x->mv_row_max);
all_in &= ((best_mv->as_mv.col + ss[i + 2].mv.col) > x->mv_col_min);
all_in &= ((best_mv->as_mv.col + ss[i + 3].mv.col) < x->mv_col_max);
if (all_in) {
unsigned int sad_array[4];
for (j = 0; j < x->searches_per_step; j += 4) {
unsigned char *block_offset[4];
for (t = 0; t < 4; t++)
block_offset[t] = ss[i + t].offset + best_address;
fn_ptr->sdx4df(what, what_stride, block_offset, in_what_stride, sad_array);
for (t = 0; t < 4; t++, i++) {
if (sad_array[t] < bestsad) {
this_mv.as_mv.row = best_mv->as_mv.row + ss[i].mv.row;
this_mv.as_mv.col = best_mv->as_mv.col + ss[i].mv.col;
sad_array[t] += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (sad_array[t] < bestsad) {
bestsad = sad_array[t];
best_site = i;
}
}
}
}
} else {
for (j = 0; j < x->searches_per_step; j++) {
// Trap illegal vectors
this_row_offset = best_mv->as_mv.row + ss[i].mv.row;
this_col_offset = best_mv->as_mv.col + ss[i].mv.col;
if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
(this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max)) {
check_here = ss[i].offset + best_address;
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
if (thissad < bestsad) {
this_mv.as_mv.row = this_row_offset;
this_mv.as_mv.col = this_col_offset;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_site = i;
}
}
}
i++;
}
}
if (best_site != last_site) {
best_mv->as_mv.row += ss[best_site].mv.row;
best_mv->as_mv.col += ss[best_site].mv.col;
best_address += ss[best_site].offset;
last_site = best_site;
} else if (best_address == in_what)
(*num00)++;
}
this_mv.as_mv.row = best_mv->as_mv.row << 3;
this_mv.as_mv.col = best_mv->as_mv.col << 3;
if (bestsad == INT_MAX)
return INT_MAX;
return
fn_ptr->vf(what, what_stride, best_address, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
}
#define XMVCOST (x->e_mbd.allow_high_precision_mv?x->mvcost_hp:x->mvcost)
/* do_refine: If last step (1-away) of n-step search doesn't pick the center
point as the best match, we will do a final 1-away diamond
refining search */
int vp8_full_pixel_diamond(VP8_COMP *cpi, MACROBLOCK *x, BLOCK *b,
BLOCKD *d, int_mv *mvp_full, int step_param,
int sadpb, int further_steps,
int do_refine, vp8_variance_fn_ptr_t *fn_ptr,
int_mv *ref_mv, int_mv *dst_mv) {
int_mv temp_mv;
int thissme, n, num00;
int bestsme = cpi->diamond_search_sad(x, b, d, mvp_full, &temp_mv,
step_param, sadpb, &num00,
fn_ptr, XMVCOST, ref_mv);
dst_mv->as_int = temp_mv.as_int;
n = num00;
num00 = 0;
/* If there won't be more n-step search, check to see if refining search is needed. */
if (n > further_steps)
do_refine = 0;
while (n < further_steps) {
n++;
if (num00)
num00--;
else {
thissme = cpi->diamond_search_sad(x, b, d, mvp_full, &temp_mv,
step_param + n, sadpb, &num00,
fn_ptr, XMVCOST, ref_mv);
/* check to see if refining search is needed. */
if (num00 > (further_steps - n))
do_refine = 0;
if (thissme < bestsme) {
bestsme = thissme;
dst_mv->as_int = temp_mv.as_int;
}
}
}
/* final 1-away diamond refining search */
if (do_refine == 1) {
int search_range = 8;
int_mv best_mv;
best_mv.as_int = dst_mv->as_int;
thissme = cpi->refining_search_sad(x, b, d, &best_mv, sadpb, search_range,
fn_ptr, XMVCOST, ref_mv);
if (thissme < bestsme) {
bestsme = thissme;
dst_mv->as_int = best_mv.as_int;
}
}
return bestsme;
}
int vp8_full_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
int sad_per_bit, int distance,
vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
int_mv *center_mv) {
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
unsigned char *in_what;
int in_what_stride = d->pre_stride;
int mv_stride = d->pre_stride;
unsigned char *bestaddress;
int_mv *best_mv = &d->bmi.as_mv.first;
int_mv this_mv;
int bestsad = INT_MAX;
int r, c;
unsigned char *check_here;
int thissad;
MACROBLOCKD *xd = &x->e_mbd;
int ref_row = ref_mv->as_mv.row;
int ref_col = ref_mv->as_mv.col;
int row_min = ref_row - distance;
int row_max = ref_row + distance;
int col_min = ref_col - distance;
int col_max = ref_col + distance;
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
// Work out the mid point for the search
in_what = *(d->base_pre) + d->pre;
bestaddress = in_what + (ref_row * d->pre_stride) + ref_col;
best_mv->as_mv.row = ref_row;
best_mv->as_mv.col = ref_col;
// Baseline value at the centre
bestsad = fn_ptr->sdf(what, what_stride, bestaddress,
in_what_stride, 0x7fffffff)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
// Apply further limits to prevent us looking using vectors that stretch beyiond the UMV border
if (col_min < x->mv_col_min)
col_min = x->mv_col_min;
if (col_max > x->mv_col_max)
col_max = x->mv_col_max;
if (row_min < x->mv_row_min)
row_min = x->mv_row_min;
if (row_max > x->mv_row_max)
row_max = x->mv_row_max;
for (r = row_min; r < row_max; r++) {
this_mv.as_mv.row = r;
check_here = r * mv_stride + in_what + col_min;
for (c = col_min; c < col_max; c++) {
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
this_mv.as_mv.col = c;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_mv->as_mv.row = r;
best_mv->as_mv.col = c;
bestaddress = check_here;
}
check_here++;
}
}
this_mv.as_mv.row = best_mv->as_mv.row << 3;
this_mv.as_mv.col = best_mv->as_mv.col << 3;
if (bestsad < INT_MAX)
return
fn_ptr->vf(what, what_stride, bestaddress, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
else
return INT_MAX;
}
int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
int sad_per_bit, int distance,
vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
int_mv *center_mv) {
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
unsigned char *in_what;
int in_what_stride = d->pre_stride;
int mv_stride = d->pre_stride;
unsigned char *bestaddress;
int_mv *best_mv = &d->bmi.as_mv.first;
int_mv this_mv;
int bestsad = INT_MAX;
int r, c;
unsigned char *check_here;
unsigned int thissad;
MACROBLOCKD *xd = &x->e_mbd;
int ref_row = ref_mv->as_mv.row;
int ref_col = ref_mv->as_mv.col;
int row_min = ref_row - distance;
int row_max = ref_row + distance;
int col_min = ref_col - distance;
int col_max = ref_col + distance;
unsigned int sad_array[3];
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
// Work out the mid point for the search
in_what = *(d->base_pre) + d->pre;
bestaddress = in_what + (ref_row * d->pre_stride) + ref_col;
best_mv->as_mv.row = ref_row;
best_mv->as_mv.col = ref_col;
// Baseline value at the centre
bestsad = fn_ptr->sdf(what, what_stride,
bestaddress, in_what_stride, 0x7fffffff)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
// Apply further limits to prevent us looking using vectors that stretch beyiond the UMV border
if (col_min < x->mv_col_min)
col_min = x->mv_col_min;
if (col_max > x->mv_col_max)
col_max = x->mv_col_max;
if (row_min < x->mv_row_min)
row_min = x->mv_row_min;
if (row_max > x->mv_row_max)
row_max = x->mv_row_max;
for (r = row_min; r < row_max; r++) {
this_mv.as_mv.row = r;
check_here = r * mv_stride + in_what + col_min;
c = col_min;
while ((c + 2) < col_max) {
int i;
fn_ptr->sdx3f(what, what_stride, check_here, in_what_stride, sad_array);
for (i = 0; i < 3; i++) {
thissad = sad_array[i];
if (thissad < bestsad) {
this_mv.as_mv.col = c;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_mv->as_mv.row = r;
best_mv->as_mv.col = c;
bestaddress = check_here;
}
}
check_here++;
c++;
}
}
while (c < col_max) {
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
if (thissad < bestsad) {
this_mv.as_mv.col = c;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_mv->as_mv.row = r;
best_mv->as_mv.col = c;
bestaddress = check_here;
}
}
check_here++;
c++;
}
}
this_mv.as_mv.row = best_mv->as_mv.row << 3;
this_mv.as_mv.col = best_mv->as_mv.col << 3;
if (bestsad < INT_MAX)
return
fn_ptr->vf(what, what_stride, bestaddress, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
else
return INT_MAX;
}
int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
int sad_per_bit, int distance,
vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
int_mv *center_mv) {
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
unsigned char *in_what;
int in_what_stride = d->pre_stride;
int mv_stride = d->pre_stride;
unsigned char *bestaddress;
int_mv *best_mv = &d->bmi.as_mv.first;
int_mv this_mv;
int bestsad = INT_MAX;
int r, c;
unsigned char *check_here;
unsigned int thissad;
MACROBLOCKD *xd = &x->e_mbd;
int ref_row = ref_mv->as_mv.row;
int ref_col = ref_mv->as_mv.col;
int row_min = ref_row - distance;
int row_max = ref_row + distance;
int col_min = ref_col - distance;
int col_max = ref_col + distance;
DECLARE_ALIGNED_ARRAY(16, unsigned short, sad_array8, 8);
unsigned int sad_array[3];
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
// Work out the mid point for the search
in_what = *(d->base_pre) + d->pre;
bestaddress = in_what + (ref_row * d->pre_stride) + ref_col;
best_mv->as_mv.row = ref_row;
best_mv->as_mv.col = ref_col;
// Baseline value at the centre
bestsad = fn_ptr->sdf(what, what_stride,
bestaddress, in_what_stride, 0x7fffffff)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
// Apply further limits to prevent us looking using vectors that stretch beyiond the UMV border
if (col_min < x->mv_col_min)
col_min = x->mv_col_min;
if (col_max > x->mv_col_max)
col_max = x->mv_col_max;
if (row_min < x->mv_row_min)
row_min = x->mv_row_min;
if (row_max > x->mv_row_max)
row_max = x->mv_row_max;
for (r = row_min; r < row_max; r++) {
this_mv.as_mv.row = r;
check_here = r * mv_stride + in_what + col_min;
c = col_min;
while ((c + 7) < col_max) {
int i;
fn_ptr->sdx8f(what, what_stride, check_here, in_what_stride, sad_array8);
for (i = 0; i < 8; i++) {
thissad = (unsigned int)sad_array8[i];
if (thissad < bestsad) {
this_mv.as_mv.col = c;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_mv->as_mv.row = r;
best_mv->as_mv.col = c;
bestaddress = check_here;
}
}
check_here++;
c++;
}
}
while ((c + 2) < col_max) {
int i;
fn_ptr->sdx3f(what, what_stride, check_here, in_what_stride, sad_array);
for (i = 0; i < 3; i++) {
thissad = sad_array[i];
if (thissad < bestsad) {
this_mv.as_mv.col = c;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_mv->as_mv.row = r;
best_mv->as_mv.col = c;
bestaddress = check_here;
}
}
check_here++;
c++;
}
}
while (c < col_max) {
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
if (thissad < bestsad) {
this_mv.as_mv.col = c;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_mv->as_mv.row = r;
best_mv->as_mv.col = c;
bestaddress = check_here;
}
}
check_here++;
c++;
}
}
this_mv.as_mv.row = best_mv->as_mv.row << 3;
this_mv.as_mv.col = best_mv->as_mv.col << 3;
if (bestsad < INT_MAX)
return
fn_ptr->vf(what, what_stride, bestaddress, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
else
return INT_MAX;
}
int vp8_refining_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
int error_per_bit, int search_range,
vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
int_mv *center_mv) {
MV neighbors[4] = {{ -1, 0}, {0, -1}, {0, 1}, {1, 0}};
int i, j;
short this_row_offset, this_col_offset;
int what_stride = b->src_stride;
int in_what_stride = d->pre_stride;
unsigned char *what = (*(b->base_src) + b->src);
unsigned char *best_address = (unsigned char *)(*(d->base_pre) + d->pre +
(ref_mv->as_mv.row * (d->pre_stride)) + ref_mv->as_mv.col);
unsigned char *check_here;
unsigned int thissad;
int_mv this_mv;
unsigned int bestsad = INT_MAX;
MACROBLOCKD *xd = &x->e_mbd;
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
bestsad = fn_ptr->sdf(what, what_stride, best_address, in_what_stride, 0x7fffffff) + mvsad_err_cost(ref_mv, &fcenter_mv, mvsadcost, error_per_bit);
for (i = 0; i < search_range; i++) {
int best_site = -1;
for (j = 0; j < 4; j++) {
this_row_offset = ref_mv->as_mv.row + neighbors[j].row;
this_col_offset = ref_mv->as_mv.col + neighbors[j].col;
if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
(this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max)) {
check_here = (neighbors[j].row) * in_what_stride + neighbors[j].col + best_address;
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
if (thissad < bestsad) {
this_mv.as_mv.row = this_row_offset;
this_mv.as_mv.col = this_col_offset;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, error_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_site = j;
}
}
}
}
if (best_site == -1)
break;
else {
ref_mv->as_mv.row += neighbors[best_site].row;
ref_mv->as_mv.col += neighbors[best_site].col;
best_address += (neighbors[best_site].row) * in_what_stride + neighbors[best_site].col;
}
}
this_mv.as_mv.row = ref_mv->as_mv.row << 3;
this_mv.as_mv.col = ref_mv->as_mv.col << 3;
if (bestsad < INT_MAX)
return
fn_ptr->vf(what, what_stride, best_address, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
else
return INT_MAX;
}
int vp8_refining_search_sadx4(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
int_mv *ref_mv, int error_per_bit,
int search_range, vp8_variance_fn_ptr_t *fn_ptr,
int *mvcost[2], int_mv *center_mv) {
MV neighbors[4] = {{ -1, 0}, {0, -1}, {0, 1}, {1, 0}};
int i, j;
short this_row_offset, this_col_offset;
int what_stride = b->src_stride;
int in_what_stride = d->pre_stride;
unsigned char *what = (*(b->base_src) + b->src);
unsigned char *best_address = (unsigned char *)(*(d->base_pre) + d->pre +
(ref_mv->as_mv.row * (d->pre_stride)) + ref_mv->as_mv.col);
unsigned char *check_here;
unsigned int thissad;
int_mv this_mv;
unsigned int bestsad = INT_MAX;
MACROBLOCKD *xd = &x->e_mbd;
int *mvsadcost[2] = {x->mvsadcost[0], x->mvsadcost[1]};
int_mv fcenter_mv;
if (xd->allow_high_precision_mv) {
mvsadcost[0] = x->mvsadcost_hp[0];
mvsadcost[1] = x->mvsadcost_hp[1];
}
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
bestsad = fn_ptr->sdf(what, what_stride, best_address, in_what_stride, 0x7fffffff) + mvsad_err_cost(ref_mv, &fcenter_mv, mvsadcost, error_per_bit);
for (i = 0; i < search_range; i++) {
int best_site = -1;
int all_in = 1;
all_in &= ((ref_mv->as_mv.row - 1) > x->mv_row_min);
all_in &= ((ref_mv->as_mv.row + 1) < x->mv_row_max);
all_in &= ((ref_mv->as_mv.col - 1) > x->mv_col_min);
all_in &= ((ref_mv->as_mv.col + 1) < x->mv_col_max);
if (all_in) {
unsigned int sad_array[4];
unsigned char *block_offset[4];
block_offset[0] = best_address - in_what_stride;
block_offset[1] = best_address - 1;
block_offset[2] = best_address + 1;
block_offset[3] = best_address + in_what_stride;
fn_ptr->sdx4df(what, what_stride, block_offset, in_what_stride, sad_array);
for (j = 0; j < 4; j++) {
if (sad_array[j] < bestsad) {
this_mv.as_mv.row = ref_mv->as_mv.row + neighbors[j].row;
this_mv.as_mv.col = ref_mv->as_mv.col + neighbors[j].col;
sad_array[j] += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, error_per_bit);
if (sad_array[j] < bestsad) {
bestsad = sad_array[j];
best_site = j;
}
}
}
} else {
for (j = 0; j < 4; j++) {
this_row_offset = ref_mv->as_mv.row + neighbors[j].row;
this_col_offset = ref_mv->as_mv.col + neighbors[j].col;
if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
(this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max)) {
check_here = (neighbors[j].row) * in_what_stride + neighbors[j].col + best_address;
thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride, bestsad);
if (thissad < bestsad) {
this_mv.as_mv.row = this_row_offset;
this_mv.as_mv.col = this_col_offset;
thissad += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, error_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
best_site = j;
}
}
}
}
}
if (best_site == -1)
break;
else {
ref_mv->as_mv.row += neighbors[best_site].row;
ref_mv->as_mv.col += neighbors[best_site].col;
best_address += (neighbors[best_site].row) * in_what_stride + neighbors[best_site].col;
}
}
this_mv.as_mv.row = ref_mv->as_mv.row << 3;
this_mv.as_mv.col = ref_mv->as_mv.col << 3;
if (bestsad < INT_MAX)
return
fn_ptr->vf(what, what_stride, best_address, in_what_stride,
(unsigned int *)(&thissad)) +
mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit,
xd->allow_high_precision_mv);
else
return INT_MAX;
}
#ifdef ENTROPY_STATS
void print_mode_context(void) {
FILE *f = fopen("modecont.c", "a");
int i, j;
fprintf(f, "#include \"entropy.h\"\n");
fprintf(f, "const int vp8_mode_contexts[6][4] =");
fprintf(f, "{\n");
for (j = 0; j < 6; j++) {
fprintf(f, " {/* %d */ ", j);
fprintf(f, " ");
for (i = 0; i < 4; i++) {
int this_prob;
int count;
// context probs
count = mv_ref_ct[j][i][0] + mv_ref_ct[j][i][1];
if (count)
this_prob = 256 * mv_ref_ct[j][i][0] / count;
else
this_prob = 128;
if (this_prob == 0)
this_prob = 1;
fprintf(f, "%5d, ", this_prob);
}
fprintf(f, " },\n");
}
fprintf(f, "};\n");
fclose(f);
}
/* MV ref count ENTROPY_STATS stats code */
void init_mv_ref_counts() {
vpx_memset(mv_ref_ct, 0, sizeof(mv_ref_ct));
vpx_memset(mv_mode_cts, 0, sizeof(mv_mode_cts));
}
void accum_mv_refs(MB_PREDICTION_MODE m, const int ct[4]) {
if (m == ZEROMV) {
++mv_ref_ct [ct[0]] [0] [0];
++mv_mode_cts[0][0];
} else {
++mv_ref_ct [ct[0]] [0] [1];
++mv_mode_cts[0][1];
if (m == NEARESTMV) {
++mv_ref_ct [ct[1]] [1] [0];
++mv_mode_cts[1][0];
} else {
++mv_ref_ct [ct[1]] [1] [1];
++mv_mode_cts[1][1];
if (m == NEARMV) {
++mv_ref_ct [ct[2]] [2] [0];
++mv_mode_cts[2][0];
} else {
++mv_ref_ct [ct[2]] [2] [1];
++mv_mode_cts[2][1];
if (m == NEWMV) {
++mv_ref_ct [ct[3]] [3] [0];
++mv_mode_cts[3][0];
} else {
++mv_ref_ct [ct[3]] [3] [1];
++mv_mode_cts[3][1];
}
}
}
}
}
#endif/* END MV ref count ENTROPY_STATS stats code */
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