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f70330a906
vpx/vp9/encoder/vp9_mcomp.c
Yaowu Xu f70330a906 fix a bug when null function pointer is used. 
For certain partition size, the function poniter may not be intialized
at all. The patch prevent the call if the pointer is not set.

Change-Id: I78b8c3992b639e8799a16b3c74f0973d07b8b9ac
2013-08-19 17:16:12 -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 <limits.h>
#include <math.h>
#include <stdio.h>
#include "./vpx_config.h"
#include "vpx_mem/vpx_mem.h"
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_common.h"
#include "vp9/encoder/vp9_onyx_int.h"
#include "vp9/encoder/vp9_mcomp.h"
// #define NEW_DIAMOND_SEARCH
void vp9_clamp_mv_min_max(MACROBLOCK *x, MV *mv) {
const int col_min = (mv->col >> 3) - MAX_FULL_PEL_VAL + (mv->col & 7 ? 1 : 0);
const int row_min = (mv->row >> 3) - MAX_FULL_PEL_VAL + (mv->row & 7 ? 1 : 0);
const int col_max = (mv->col >> 3) + MAX_FULL_PEL_VAL;
const int row_max = (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 vp9_init_search_range(VP9_COMP *cpi, int size) {
int sr = 0;
// Minimum search size no matter what the passed in value.
size = MAX(16, size);
while ((size << sr) < MAX_FULL_PEL_VAL)
sr++;
if (sr)
sr--;
sr += cpi->sf.reduce_first_step_size;
sr = MIN(sr, (cpi->sf.max_step_search_steps - 2));
return sr;
}
int vp9_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvjcost, int *mvcost[2],
int weight) {
MV v;
v.row = mv->as_mv.row - ref->as_mv.row;
v.col = mv->as_mv.col - ref->as_mv.col;
return ROUND_POWER_OF_TWO((mvjcost[vp9_get_mv_joint(&v)] +
mvcost[0][v.row] +
mvcost[1][v.col]) * weight, 7);
}
static int mv_err_cost(int_mv *mv, int_mv *ref, int *mvjcost, int *mvcost[2],
int error_per_bit) {
if (mvcost) {
MV v;
v.row = mv->as_mv.row - ref->as_mv.row;
v.col = mv->as_mv.col - ref->as_mv.col;
return ROUND_POWER_OF_TWO((mvjcost[vp9_get_mv_joint(&v)] +
mvcost[0][v.row] +
mvcost[1][v.col]) * error_per_bit, 13);
}
return 0;
}
static int mvsad_err_cost(int_mv *mv, int_mv *ref, int *mvjsadcost,
int *mvsadcost[2], int error_per_bit) {
if (mvsadcost) {
MV v;
v.row = mv->as_mv.row - ref->as_mv.row;
v.col = mv->as_mv.col - ref->as_mv.col;
return ROUND_POWER_OF_TWO((mvjsadcost[vp9_get_mv_joint(&v)] +
mvsadcost[0][v.row] +
mvsadcost[1][v.col]) * error_per_bit, 8);
}
return 0;
}
void vp9_init_dsmotion_compensation(MACROBLOCK *x, int stride) {
int len;
int search_site_count = 0;
// Generate offsets for 4 search sites per 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++;
for (len = MAX_FIRST_STEP; len > 0; len /= 2) {
// 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++;
}
x->ss_count = search_site_count;
x->searches_per_step = 4;
}
void vp9_init3smotion_compensation(MACROBLOCK *x, int stride) {
int len;
int search_site_count = 0;
// Generate offsets for 8 search sites per 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++;
for (len = MAX_FIRST_STEP; len > 0; len /= 2) {
// 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++;
}
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.
*/
/* estimated cost of a motion vector (r,c) */
#define MVC(r, c) \
(mvcost ? \
((mvjcost[((r) != rr) * 2 + ((c) != rc)] + \
mvcost[0][((r) - rr)] + mvcost[1][((c) - rc)]) * \
error_per_bit + 4096) >> 13 : 0)
#define SP(x) (((x) & 7) << 1) // convert motion vector component to offset
// for svf calc
#define IFMVCV(r, c, s, e) \
if (c >= minc && c <= maxc && r >= minr && r <= maxr) \
s \
else \
e;
/* pointer to predictor base of a motionvector */
#define PRE(r, c) (y + (((r) >> 3) * y_stride + ((c) >> 3) -(offset)))
/* returns subpixel variance error function */
#define DIST(r, c) \
vfp->svf(PRE(r, c), y_stride, SP(c), SP(r), z, src_stride, &sse)
/* checks if (r, c) has better score than previous best */
#define CHECK_BETTER(v, r, c) \
IFMVCV(r, c, { \
thismse = (DIST(r, c)); \
if ((v = MVC(r, c) + thismse) < besterr) { \
besterr = v; \
br = r; \
bc = c; \
*distortion = thismse; \
*sse1 = sse; \
} \
}, \
v = INT_MAX;)
#define FIRST_LEVEL_CHECKS \
{ \
unsigned int left, right, up, down, diag; \
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; \
} \
}
#define SECOND_LEVEL_CHECKS \
{ \
int kr, kc; \
unsigned int second; \
if (tr != br && tc != bc) { \
kr = br - tr; \
kc = bc - tc; \
CHECK_BETTER(second, tr + kr, tc + 2 * kc); \
CHECK_BETTER(second, tr + 2 * kr, tc + kc); \
} else if (tr == br && tc != bc) { \
kc = bc - tc; \
CHECK_BETTER(second, tr + hstep, tc + 2 * kc); \
CHECK_BETTER(second, tr - hstep, tc + 2 * kc); \
switch (whichdir) { \
case 0: \
case 1: \
CHECK_BETTER(second, tr + hstep, tc + kc); \
break; \
case 2: \
case 3: \
CHECK_BETTER(second, tr - hstep, tc + kc); \
break; \
} \
} else if (tr != br && tc == bc) { \
kr = br - tr; \
CHECK_BETTER(second, tr + 2 * kr, tc + hstep); \
CHECK_BETTER(second, tr + 2 * kr, tc - hstep); \
switch (whichdir) { \
case 0: \
case 2: \
CHECK_BETTER(second, tr + kr, tc + hstep); \
break; \
case 1: \
case 3: \
CHECK_BETTER(second, tr + kr, tc - hstep); \
break; \
} \
} \
}
int vp9_find_best_sub_pixel_iterative(MACROBLOCK *x,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp9_variance_fn_ptr_t *vfp,
int forced_stop,
int iters_per_step,
int *mvjcost, int *mvcost[2],
int *distortion,
unsigned int *sse1) {
uint8_t *z = x->plane[0].src.buf;
int src_stride = x->plane[0].src.stride;
MACROBLOCKD *xd = &x->e_mbd;
unsigned int besterr = INT_MAX;
unsigned int sse;
unsigned int whichdir;
unsigned int halfiters = iters_per_step;
unsigned int quarteriters = iters_per_step;
unsigned int eighthiters = iters_per_step;
int thismse;
uint8_t *y = xd->plane[0].pre[0].buf +
(bestmv->as_mv.row) * xd->plane[0].pre[0].stride +
bestmv->as_mv.col;
const int y_stride = xd->plane[0].pre[0].stride;
int rr = ref_mv->as_mv.row;
int rc = ref_mv->as_mv.col;
int br = bestmv->as_mv.row << 3;
int bc = bestmv->as_mv.col << 3;
int hstep = 4;
const int minc = MAX(x->mv_col_min << 3, ref_mv->as_mv.col - MV_MAX);
const int maxc = MIN(x->mv_col_max << 3, ref_mv->as_mv.col + MV_MAX);
const int minr = MAX(x->mv_row_min << 3, ref_mv->as_mv.row - MV_MAX);
const int maxr = MIN(x->mv_row_max << 3, ref_mv->as_mv.row + MV_MAX);
int tr = br;
int tc = bc;
const int 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, src_stride, sse1);
*distortion = besterr;
besterr += mv_err_cost(bestmv, ref_mv, mvjcost, mvcost, error_per_bit);
// 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
FIRST_LEVEL_CHECKS;
// 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
// Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
if (forced_stop != 2) {
hstep >>= 1;
while (quarteriters--) {
FIRST_LEVEL_CHECKS;
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
}
if (xd->allow_high_precision_mv && vp9_use_mv_hp(&ref_mv->as_mv) &&
forced_stop == 0) {
hstep >>= 1;
while (eighthiters--) {
FIRST_LEVEL_CHECKS;
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
}
bestmv->as_mv.row = br;
bestmv->as_mv.col = bc;
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;
}
int vp9_find_best_sub_pixel_tree(MACROBLOCK *x,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp9_variance_fn_ptr_t *vfp,
int forced_stop,
int iters_per_step,
int *mvjcost, int *mvcost[2],
int *distortion,
unsigned int *sse1) {
uint8_t *z = x->plane[0].src.buf;
int src_stride = x->plane[0].src.stride;
MACROBLOCKD *xd = &x->e_mbd;
int rr, rc, br, bc, hstep;
int tr, tc;
unsigned int besterr = INT_MAX;
unsigned int sse;
unsigned int whichdir;
int thismse;
int maxc, minc, maxr, minr;
int y_stride;
int offset;
unsigned int halfiters = iters_per_step;
unsigned int quarteriters = iters_per_step;
unsigned int eighthiters = iters_per_step;
uint8_t *y = xd->plane[0].pre[0].buf +
(bestmv->as_mv.row) * xd->plane[0].pre[0].stride +
bestmv->as_mv.col;
y_stride = xd->plane[0].pre[0].stride;
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 << MV_MAX_BITS) - 1));
maxc = MIN(x->mv_col_max << 3,
(ref_mv->as_mv.col) + ((1 << MV_MAX_BITS) - 1));
minr = MAX(x->mv_row_min << 3,
(ref_mv->as_mv.row) - ((1 << MV_MAX_BITS) - 1));
maxr = MIN(x->mv_row_max << 3,
(ref_mv->as_mv.row) + ((1 << MV_MAX_BITS) - 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, src_stride, sse1);
*distortion = besterr;
besterr += mv_err_cost(bestmv, ref_mv, mvjcost, mvcost, error_per_bit);
// 1/2 pel
FIRST_LEVEL_CHECKS;
if (halfiters > 1) {
SECOND_LEVEL_CHECKS;
}
tr = br;
tc = bc;
// Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
if (forced_stop != 2) {
hstep >>= 1;
FIRST_LEVEL_CHECKS;
if (quarteriters > 1) {
SECOND_LEVEL_CHECKS;
}
tr = br;
tc = bc;
}
if (xd->allow_high_precision_mv && vp9_use_mv_hp(&ref_mv->as_mv) &&
forced_stop == 0) {
hstep >>= 1;
FIRST_LEVEL_CHECKS;
if (eighthiters > 1) {
SECOND_LEVEL_CHECKS;
}
tr = br;
tc = bc;
}
bestmv->as_mv.row = br;
bestmv->as_mv.col = bc;
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 DIST
/* returns subpixel variance error function */
#define DIST(r, c) \
vfp->svaf(PRE(r, c), y_stride, SP(c), SP(r), \
z, src_stride, &sse, second_pred)
int vp9_find_best_sub_pixel_comp_iterative(MACROBLOCK *x,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp9_variance_fn_ptr_t *vfp,
int forced_stop,
int iters_per_step,
int *mvjcost, int *mvcost[2],
int *distortion,
unsigned int *sse1,
const uint8_t *second_pred,
int w, int h) {
uint8_t *const z = x->plane[0].src.buf;
const int src_stride = x->plane[0].src.stride;
MACROBLOCKD *const xd = &x->e_mbd;
unsigned int besterr = INT_MAX;
unsigned int sse;
unsigned int whichdir;
unsigned int halfiters = iters_per_step;
unsigned int quarteriters = iters_per_step;
unsigned int eighthiters = iters_per_step;
int thismse;
DECLARE_ALIGNED_ARRAY(16, uint8_t, comp_pred, 64 * 64);
uint8_t *const y = xd->plane[0].pre[0].buf +
(bestmv->as_mv.row) * xd->plane[0].pre[0].stride +
bestmv->as_mv.col;
const int y_stride = xd->plane[0].pre[0].stride;
int rr = ref_mv->as_mv.row;
int rc = ref_mv->as_mv.col;
int br = bestmv->as_mv.row << 3;
int bc = bestmv->as_mv.col << 3;
int hstep = 4;
const int minc = MAX(x->mv_col_min << 3, ref_mv->as_mv.col - MV_MAX);
const int maxc = MIN(x->mv_col_max << 3, ref_mv->as_mv.col + MV_MAX);
const int minr = MAX(x->mv_row_min << 3, ref_mv->as_mv.row - MV_MAX);
const int maxr = MIN(x->mv_row_max << 3, ref_mv->as_mv.row + MV_MAX);
int tr = br;
int tc = bc;
const int 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
// TODO(yunqingwang): central pointer error was already calculated in full-
// pixel search, and can be passed in this function.
comp_avg_pred(comp_pred, second_pred, w, h, y, y_stride);
besterr = vfp->vf(comp_pred, w, z, src_stride, sse1);
*distortion = besterr;
besterr += mv_err_cost(bestmv, ref_mv, mvjcost, mvcost, error_per_bit);
// 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
FIRST_LEVEL_CHECKS;
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
// Each subsequent iteration checks at least one point in common with
// the last iteration could be 2 ( if diag selected) 1/4 pel
// Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
if (forced_stop != 2) {
hstep >>= 1;
while (quarteriters--) {
FIRST_LEVEL_CHECKS;
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
}
if (xd->allow_high_precision_mv && vp9_use_mv_hp(&ref_mv->as_mv) &&
forced_stop == 0) {
hstep >>= 1;
while (eighthiters--) {
FIRST_LEVEL_CHECKS;
// no reason to check the same one again.
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
}
bestmv->as_mv.row = br;
bestmv->as_mv.col = bc;
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;
}
int vp9_find_best_sub_pixel_comp_tree(MACROBLOCK *x,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp9_variance_fn_ptr_t *vfp,
int forced_stop,
int iters_per_step,
int *mvjcost, int *mvcost[2],
int *distortion,
unsigned int *sse1,
const uint8_t *second_pred,
int w, int h) {
uint8_t *z = x->plane[0].src.buf;
int src_stride = x->plane[0].src.stride;
MACROBLOCKD *xd = &x->e_mbd;
int rr, rc, br, bc, hstep;
int tr, tc;
unsigned int besterr = INT_MAX;
unsigned int sse;
unsigned int whichdir;
int thismse;
int maxc, minc, maxr, minr;
int y_stride;
int offset;
unsigned int halfiters = iters_per_step;
unsigned int quarteriters = iters_per_step;
unsigned int eighthiters = iters_per_step;
DECLARE_ALIGNED_ARRAY(16, uint8_t, comp_pred, 64 * 64);
uint8_t *y = xd->plane[0].pre[0].buf +
(bestmv->as_mv.row) * xd->plane[0].pre[0].stride +
bestmv->as_mv.col;
y_stride = xd->plane[0].pre[0].stride;
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 << MV_MAX_BITS) - 1));
maxc = MIN(x->mv_col_max << 3, (ref_mv->as_mv.col) +
((1 << MV_MAX_BITS) - 1));
minr = MAX(x->mv_row_min << 3, (ref_mv->as_mv.row) -
((1 << MV_MAX_BITS) - 1));
maxr = MIN(x->mv_row_max << 3, (ref_mv->as_mv.row) +
((1 << MV_MAX_BITS) - 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
// TODO(yunqingwang): central pointer error was already calculated in full-
// pixel search, and can be passed in this function.
comp_avg_pred(comp_pred, second_pred, w, h, y, y_stride);
besterr = vfp->vf(comp_pred, w, z, src_stride, sse1);
*distortion = besterr;
besterr += mv_err_cost(bestmv, ref_mv, mvjcost, mvcost, error_per_bit);
// Each subsequent iteration checks at least one point in
// common with the last iteration could be 2 ( if diag selected)
// 1/2 pel
FIRST_LEVEL_CHECKS;
if (halfiters > 1) {
SECOND_LEVEL_CHECKS;
}
tr = br;
tc = bc;
// Each subsequent iteration checks at least one point in common with
// the last iteration could be 2 ( if diag selected) 1/4 pel
// Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
if (forced_stop != 2) {
hstep >>= 1;
FIRST_LEVEL_CHECKS;
if (quarteriters > 1) {
SECOND_LEVEL_CHECKS;
}
tr = br;
tc = bc;
}
if (xd->allow_high_precision_mv && vp9_use_mv_hp(&ref_mv->as_mv) &&
forced_stop == 0) {
hstep >>= 1;
FIRST_LEVEL_CHECKS;
if (eighthiters > 1) {
SECOND_LEVEL_CHECKS;
}
tr = br;
tc = bc;
}
bestmv->as_mv.row = br;
bestmv->as_mv.col = bc;
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 DIST
#undef IFMVCV
#undef CHECK_BETTER
#undef SP
#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)\
{\
if (use_mvcost) \
thissad += mvsad_err_cost(&this_mv, &fcenter_mv, \
mvjsadcost, mvsadcost, \
sad_per_bit);\
if (thissad < bestsad)\
{\
bestsad = thissad;\
best_site = i;\
}\
}\
}
#define get_next_chkpts(list, i, n) \
list[0] = ((i) == 0 ? (n) - 1 : (i) - 1); \
list[1] = (i); \
list[2] = ((i) == (n) - 1 ? 0 : (i) + 1);
#define MAX_PATTERN_SCALES 11
#define MAX_PATTERN_CANDIDATES 8 // max number of canddiates per scale
#define PATTERN_CANDIDATES_REF 3 // number of refinement candidates
// Generic pattern search function that searches over multiple scales.
// Each scale can have a different number of candidates and shape of
// candidates as indicated in the num_candidates and candidates arrays
// passed into this function
static int vp9_pattern_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int sad_per_bit,
int do_init_search,
int do_refine,
const vp9_variance_fn_ptr_t *vfp,
int use_mvcost,
int_mv *center_mv, int_mv *best_mv,
const int num_candidates[MAX_PATTERN_SCALES],
const MV candidates[MAX_PATTERN_SCALES]
[MAX_PATTERN_CANDIDATES]) {
const MACROBLOCKD* const xd = &x->e_mbd;
static const int search_param_to_steps[MAX_MVSEARCH_STEPS] = {
10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
};
int i, j, s, t;
uint8_t *what = x->plane[0].src.buf;
int what_stride = x->plane[0].src.stride;
int in_what_stride = xd->plane[0].pre[0].stride;
int br, bc;
int_mv this_mv;
int bestsad = INT_MAX;
int thissad;
uint8_t *base_offset;
uint8_t *this_offset;
int k = -1;
int all_in;
int best_site = -1;
int_mv fcenter_mv;
int best_init_s = search_param_to_steps[search_param];
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[1]};
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
clamp_mv(&ref_mv->as_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 = (uint8_t *)(xd->plane[0].pre[0].buf);
this_offset = base_offset + (br * in_what_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, mvjsadcost, mvsadcost,
sad_per_bit);
// Search all possible scales upto the search param around the center point
// pick the scale of the point that is best as the starting scale of
// further steps around it.
if (do_init_search) {
s = best_init_s;
best_init_s = -1;
for (t = 0; t <= s; ++t) {
best_site = -1;
CHECK_BOUNDS((1 << t))
if (all_in) {
for (i = 0; i < num_candidates[t]; i++) {
this_mv.as_mv.row = br + candidates[t][i].row;
this_mv.as_mv.col = bc + candidates[t][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 < num_candidates[t]; i++) {
this_mv.as_mv.row = br + candidates[t][i].row;
this_mv.as_mv.col = bc + candidates[t][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) {
continue;
} else {
best_init_s = t;
k = best_site;
}
}
if (best_init_s != -1) {
br += candidates[best_init_s][k].row;
bc += candidates[best_init_s][k].col;
}
}
// If the center point is still the best, just skip this and move to
// the refinement step.
if (best_init_s != -1) {
s = best_init_s;
best_site = -1;
do {
// No need to search all 6 points the 1st time if initial search was used
if (!do_init_search || s != best_init_s) {
CHECK_BOUNDS((1 << s))
if (all_in) {
for (i = 0; i < num_candidates[s]; i++) {
this_mv.as_mv.row = br + candidates[s][i].row;
this_mv.as_mv.col = bc + candidates[s][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 < num_candidates[s]; i++) {
this_mv.as_mv.row = br + candidates[s][i].row;
this_mv.as_mv.col = bc + candidates[s][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) {
continue;
} else {
br += candidates[s][best_site].row;
bc += candidates[s][best_site].col;
k = best_site;
}
}
do {
int next_chkpts_indices[PATTERN_CANDIDATES_REF];
best_site = -1;
CHECK_BOUNDS((1 << s))
get_next_chkpts(next_chkpts_indices, k, num_candidates[s]);
if (all_in) {
for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
this_mv.as_mv.row = br +
candidates[s][next_chkpts_indices[i]].row;
this_mv.as_mv.col = bc +
candidates[s][next_chkpts_indices[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 < PATTERN_CANDIDATES_REF; i++) {
this_mv.as_mv.row = br +
candidates[s][next_chkpts_indices[i]].row;
this_mv.as_mv.col = bc +
candidates[s][next_chkpts_indices[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) {
k = next_chkpts_indices[best_site];
br += candidates[s][k].row;
bc += candidates[s][k].col;
}
} while (best_site != -1);
} while (s--);
}
// Check 4 1-away neighbors if do_refine is true.
// For most well-designed schemes do_refine will not be necessary.
if (do_refine) {
static const MV neighbors[4] = {
{0, -1}, { -1, 0}, {1, 0}, {0, 1},
};
for (j = 0; j < 16; 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;
this_offset = base_offset + (best_mv->as_mv.row * (in_what_stride)) +
best_mv->as_mv.col;
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
vfp->vf(what, what_stride, this_offset, in_what_stride,
(unsigned int *)(&bestsad)) +
use_mvcost ? mv_err_cost(&this_mv, center_mv, x->nmvjointcost, x->mvcost,
x->errorperbit) : 0;
}
int vp9_hex_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int sad_per_bit,
int do_init_search,
const vp9_variance_fn_ptr_t *vfp,
int use_mvcost,
int_mv *center_mv, int_mv *best_mv) {
// First scale has 8-closest points, the rest have 6 points in hex shape
// at increasing scales
static const int hex_num_candidates[MAX_PATTERN_SCALES] = {
8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6
};
// Note that the largest candidate step at each scale is 2^scale
static const MV hex_candidates[MAX_PATTERN_SCALES][MAX_PATTERN_CANDIDATES] = {
{{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, { 0, 1}, { -1, 1}, {-1, 0}},
{{-1, -2}, {1, -2}, {2, 0}, {1, 2}, { -1, 2}, { -2, 0}},
{{-2, -4}, {2, -4}, {4, 0}, {2, 4}, { -2, 4}, { -4, 0}},
{{-4, -8}, {4, -8}, {8, 0}, {4, 8}, { -4, 8}, { -8, 0}},
{{-8, -16}, {8, -16}, {16, 0}, {8, 16}, { -8, 16}, { -16, 0}},
{{-16, -32}, {16, -32}, {32, 0}, {16, 32}, { -16, 32}, { -32, 0}},
{{-32, -64}, {32, -64}, {64, 0}, {32, 64}, { -32, 64}, { -64, 0}},
{{-64, -128}, {64, -128}, {128, 0}, {64, 128}, { -64, 128}, { -128, 0}},
{{-128, -256}, {128, -256}, {256, 0}, {128, 256}, { -128, 256}, { -256, 0}},
{{-256, -512}, {256, -512}, {512, 0}, {256, 512}, { -256, 512}, { -512, 0}},
{{-512, -1024}, {512, -1024}, {1024, 0}, {512, 1024}, { -512, 1024},
{ -1024, 0}},
};
return
vp9_pattern_search(x, ref_mv, search_param, sad_per_bit,
do_init_search, 0, vfp, use_mvcost,
center_mv, best_mv,
hex_num_candidates, hex_candidates);
}
int vp9_bigdia_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int sad_per_bit,
int do_init_search,
const vp9_variance_fn_ptr_t *vfp,
int use_mvcost,
int_mv *center_mv,
int_mv *best_mv) {
// First scale has 4-closest points, the rest have 8 points in diamond
// shape at increasing scales
static const int bigdia_num_candidates[MAX_PATTERN_SCALES] = {
4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
};
// Note that the largest candidate step at each scale is 2^scale
static const MV bigdia_candidates[MAX_PATTERN_SCALES]
[MAX_PATTERN_CANDIDATES] = {
{{0, -1}, {1, 0}, { 0, 1}, {-1, 0}},
{{-1, -1}, {0, -2}, {1, -1}, {2, 0}, {1, 1}, {0, 2}, {-1, 1}, {-2, 0}},
{{-2, -2}, {0, -4}, {2, -2}, {4, 0}, {2, 2}, {0, 4}, {-2, 2}, {-4, 0}},
{{-4, -4}, {0, -8}, {4, -4}, {8, 0}, {4, 4}, {0, 8}, {-4, 4}, {-8, 0}},
{{-8, -8}, {0, -16}, {8, -8}, {16, 0}, {8, 8}, {0, 16}, {-8, 8}, {-16, 0}},
{{-16, -16}, {0, -32}, {16, -16}, {32, 0}, {16, 16}, {0, 32},
{-16, 16}, {-32, 0}},
{{-32, -32}, {0, -64}, {32, -32}, {64, 0}, {32, 32}, {0, 64},
{-32, 32}, {-64, 0}},
{{-64, -64}, {0, -128}, {64, -64}, {128, 0}, {64, 64}, {0, 128},
{-64, 64}, {-128, 0}},
{{-128, -128}, {0, -256}, {128, -128}, {256, 0}, {128, 128}, {0, 256},
{-128, 128}, {-256, 0}},
{{-256, -256}, {0, -512}, {256, -256}, {512, 0}, {256, 256}, {0, 512},
{-256, 256}, {-512, 0}},
{{-512, -512}, {0, -1024}, {512, -512}, {1024, 0}, {512, 512}, {0, 1024},
{-512, 512}, {-1024, 0}},
};
return
vp9_pattern_search(x, ref_mv, search_param, sad_per_bit,
do_init_search, 0, vfp, use_mvcost,
center_mv, best_mv,
bigdia_num_candidates, bigdia_candidates);
}
int vp9_square_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int sad_per_bit,
int do_init_search,
const vp9_variance_fn_ptr_t *vfp,
int use_mvcost,
int_mv *center_mv,
int_mv *best_mv) {
// All scales have 8 closest points in square shape
static const int square_num_candidates[MAX_PATTERN_SCALES] = {
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
};
// Note that the largest candidate step at each scale is 2^scale
static const MV square_candidates[MAX_PATTERN_SCALES]
[MAX_PATTERN_CANDIDATES] = {
{{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}},
{{-2, -2}, {0, -2}, {2, -2}, {2, 0}, {2, 2}, {0, 2}, {-2, 2}, {-2, 0}},
{{-4, -4}, {0, -4}, {4, -4}, {4, 0}, {4, 4}, {0, 4}, {-4, 4}, {-4, 0}},
{{-8, -8}, {0, -8}, {8, -8}, {8, 0}, {8, 8}, {0, 8}, {-8, 8}, {-8, 0}},
{{-16, -16}, {0, -16}, {16, -16}, {16, 0}, {16, 16}, {0, 16},
{-16, 16}, {-16, 0}},
{{-32, -32}, {0, -32}, {32, -32}, {32, 0}, {32, 32}, {0, 32},
{-32, 32}, {-32, 0}},
{{-64, -64}, {0, -64}, {64, -64}, {64, 0}, {64, 64}, {0, 64},
{-64, 64}, {-64, 0}},
{{-128, -128}, {0, -128}, {128, -128}, {128, 0}, {128, 128}, {0, 128},
{-128, 128}, {-128, 0}},
{{-256, -256}, {0, -256}, {256, -256}, {256, 0}, {256, 256}, {0, 256},
{-256, 256}, {-256, 0}},
{{-512, -512}, {0, -512}, {512, -512}, {512, 0}, {512, 512}, {0, 512},
{-512, 512}, {-512, 0}},
{{-1024, -1024}, {0, -1024}, {1024, -1024}, {1024, 0}, {1024, 1024},
{0, 1024}, {-1024, 1024}, {-1024, 0}},
};
return
vp9_pattern_search(x, ref_mv, search_param, sad_per_bit,
do_init_search, 0, vfp, use_mvcost,
center_mv, best_mv,
square_num_candidates, square_candidates);
};
#undef CHECK_BOUNDS
#undef CHECK_POINT
#undef CHECK_BETTER
int vp9_diamond_search_sad_c(MACROBLOCK *x,
int_mv *ref_mv, int_mv *best_mv,
int search_param, int sad_per_bit, int *num00,
vp9_variance_fn_ptr_t *fn_ptr, int *mvjcost,
int *mvcost[2], int_mv *center_mv) {
int i, j, step;
const MACROBLOCKD* const xd = &x->e_mbd;
uint8_t *what = x->plane[0].src.buf;
int what_stride = x->plane[0].src.stride;
uint8_t *in_what;
int in_what_stride = xd->plane[0].pre[0].stride;
uint8_t *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;
uint8_t *check_here;
int thissad;
int_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[1]};
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
clamp_mv(&ref_mv->as_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 = (uint8_t *)(xd->plane[0].pre[0].buf +
(ref_row * (xd->plane[0].pre[0].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, mvjsadcost, 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,
mvjsadcost, 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;
#if defined(NEW_DIAMOND_SEARCH)
while (1) {
this_row_offset = best_mv->as_mv.row + ss[best_site].mv.row;
this_col_offset = best_mv->as_mv.col + ss[best_site].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[best_site].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,
mvjsadcost, mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
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;
continue;
}
}
}
break;
};
#endif
} 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, mvjcost,
mvcost, x->errorperbit);
}
int vp9_diamond_search_sadx4(MACROBLOCK *x,
int_mv *ref_mv, int_mv *best_mv, int search_param,
int sad_per_bit, int *num00,
vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2], int_mv *center_mv) {
int i, j, step;
const MACROBLOCKD* const xd = &x->e_mbd;
uint8_t *what = x->plane[0].src.buf;
int what_stride = x->plane[0].src.stride;
uint8_t *in_what;
int in_what_stride = xd->plane[0].pre[0].stride;
uint8_t *best_address;
int tot_steps;
int_mv this_mv;
unsigned 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;
uint8_t *check_here;
unsigned int thissad;
int_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[1]};
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
clamp_mv(&ref_mv->as_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 = (uint8_t *)(xd->plane[0].pre[0].buf +
(ref_row * (xd->plane[0].pre[0].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, mvjsadcost, 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 const *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,
mvjsadcost, 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,
mvjsadcost, 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;
#if defined(NEW_DIAMOND_SEARCH)
while (1) {
this_row_offset = best_mv->as_mv.row + ss[best_site].mv.row;
this_col_offset = best_mv->as_mv.col + ss[best_site].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[best_site].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,
mvjsadcost, mvsadcost, sad_per_bit);
if (thissad < bestsad) {
bestsad = thissad;
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;
continue;
}
}
}
break;
};
#endif
} 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, mvjcost, mvcost, x->errorperbit);
}
/* 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 vp9_full_pixel_diamond(VP9_COMP *cpi, MACROBLOCK *x,
int_mv *mvp_full, int step_param,
int sadpb, int further_steps,
int do_refine, vp9_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, mvp_full, &temp_mv,
step_param, sadpb, &num00,
fn_ptr, x->nmvjointcost,
x->mvcost, 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, mvp_full, &temp_mv,
step_param + n, sadpb, &num00,
fn_ptr, x->nmvjointcost, x->mvcost,
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, &best_mv, sadpb, search_range,
fn_ptr, x->nmvjointcost, x->mvcost,
ref_mv);
if (thissme < bestsme) {
bestsme = thissme;
dst_mv->as_int = best_mv.as_int;
}
}
return bestsme;
}
int vp9_full_search_sad_c(MACROBLOCK *x, int_mv *ref_mv,
int sad_per_bit, int distance,
vp9_variance_fn_ptr_t *fn_ptr, int *mvjcost,
int *mvcost[2],
int_mv *center_mv, int n) {
const MACROBLOCKD* const xd = &x->e_mbd;
uint8_t *what = x->plane[0].src.buf;
int what_stride = x->plane[0].src.stride;
uint8_t *in_what;
int in_what_stride = xd->plane[0].pre[0].stride;
int mv_stride = xd->plane[0].pre[0].stride;
uint8_t *bestaddress;
int_mv *best_mv = &x->e_mbd.mode_info_context->bmi[n].as_mv[0];
int_mv this_mv;
int bestsad = INT_MAX;
int r, c;
uint8_t *check_here;
int thissad;
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_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[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 = xd->plane[0].pre[0].buf;
bestaddress = in_what + (ref_row * xd->plane[0].pre[0].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, mvjsadcost, mvsadcost,
sad_per_bit);
// Apply further limits to prevent us looking using vectors that stretch
// beyond the UMV border
col_min = MAX(col_min, x->mv_col_min);
col_max = MIN(col_max, x->mv_col_max);
row_min = MAX(row_min, x->mv_row_min);
row_max = MIN(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,
mvjsadcost, 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, mvjcost, mvcost, x->errorperbit);
else
return INT_MAX;
}
int vp9_full_search_sadx3(MACROBLOCK *x, int_mv *ref_mv,
int sad_per_bit, int distance,
vp9_variance_fn_ptr_t *fn_ptr, int *mvjcost,
int *mvcost[2], int_mv *center_mv, int n) {
const MACROBLOCKD* const xd = &x->e_mbd;
uint8_t *what = x->plane[0].src.buf;
int what_stride = x->plane[0].src.stride;
uint8_t *in_what;
int in_what_stride = xd->plane[0].pre[0].stride;
int mv_stride = xd->plane[0].pre[0].stride;
uint8_t *bestaddress;
int_mv *best_mv = &x->e_mbd.mode_info_context->bmi[n].as_mv[0];
int_mv this_mv;
unsigned int bestsad = INT_MAX;
int r, c;
uint8_t *check_here;
unsigned int thissad;
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_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[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 = xd->plane[0].pre[0].buf;
bestaddress = in_what + (ref_row * xd->plane[0].pre[0].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, mvjsadcost, mvsadcost,
sad_per_bit);
// Apply further limits to prevent us looking using vectors that stretch
// beyond the UMV border
col_min = MAX(col_min, x->mv_col_min);
col_max = MIN(col_max, x->mv_col_max);
row_min = MAX(row_min, x->mv_row_min);
row_max = MIN(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,
mvjsadcost, 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,
mvjsadcost, 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, mvjcost, mvcost, x->errorperbit);
else
return INT_MAX;
}
int vp9_full_search_sadx8(MACROBLOCK *x, int_mv *ref_mv,
int sad_per_bit, int distance,
vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2],
int_mv *center_mv, int n) {
const MACROBLOCKD* const xd = &x->e_mbd;
uint8_t *what = x->plane[0].src.buf;
int what_stride = x->plane[0].src.stride;
uint8_t *in_what;
int in_what_stride = xd->plane[0].pre[0].stride;
int mv_stride = xd->plane[0].pre[0].stride;
uint8_t *bestaddress;
int_mv *best_mv = &x->e_mbd.mode_info_context->bmi[n].as_mv[0];
int_mv this_mv;
unsigned int bestsad = INT_MAX;
int r, c;
uint8_t *check_here;
unsigned int thissad;
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, uint32_t, sad_array8, 8);
unsigned int sad_array[3];
int_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[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 = xd->plane[0].pre[0].buf;
bestaddress = in_what + (ref_row * xd->plane[0].pre[0].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, mvjsadcost, mvsadcost,
sad_per_bit);
// Apply further limits to prevent us looking using vectors that stretch
// beyond the UMV border
col_min = MAX(col_min, x->mv_col_min);
col_max = MIN(col_max, x->mv_col_max);
row_min = MAX(row_min, x->mv_row_min);
row_max = MIN(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,
mvjsadcost, 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 && fn_ptr->sdx3f != NULL) {
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,
mvjsadcost, 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,
mvjsadcost, 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, mvjcost, mvcost, x->errorperbit);
else
return INT_MAX;
}
int vp9_refining_search_sad_c(MACROBLOCK *x,
int_mv *ref_mv, int error_per_bit,
int search_range, vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2], int_mv *center_mv) {
const MACROBLOCKD* const xd = &x->e_mbd;
MV neighbors[4] = {{ -1, 0}, {0, -1}, {0, 1}, {1, 0}};
int i, j;
int this_row_offset, this_col_offset;
int what_stride = x->plane[0].src.stride;
int in_what_stride = xd->plane[0].pre[0].stride;
uint8_t *what = x->plane[0].src.buf;
uint8_t *best_address = xd->plane[0].pre[0].buf +
(ref_mv->as_mv.row * xd->plane[0].pre[0].stride) +
ref_mv->as_mv.col;
uint8_t *check_here;
unsigned int thissad;
int_mv this_mv;
unsigned int bestsad = INT_MAX;
int_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[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, mvjsadcost, 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, mvjsadcost,
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, mvjcost, mvcost, x->errorperbit);
else
return INT_MAX;
}
int vp9_refining_search_sadx4(MACROBLOCK *x,
int_mv *ref_mv, int error_per_bit,
int search_range, vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2], int_mv *center_mv) {
const MACROBLOCKD* const xd = &x->e_mbd;
MV neighbors[4] = {{ -1, 0}, {0, -1}, {0, 1}, {1, 0}};
int i, j;
int this_row_offset, this_col_offset;
int what_stride = x->plane[0].src.stride;
int in_what_stride = xd->plane[0].pre[0].stride;
uint8_t *what = x->plane[0].src.buf;
uint8_t *best_address = xd->plane[0].pre[0].buf +
(ref_mv->as_mv.row * xd->plane[0].pre[0].stride) +
ref_mv->as_mv.col;
uint8_t *check_here;
unsigned int thissad;
int_mv this_mv;
unsigned int bestsad = INT_MAX;
int_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[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, mvjsadcost, mvsadcost, error_per_bit);
for (i = 0; i < search_range; i++) {
int best_site = -1;
int all_in = ((ref_mv->as_mv.row - 1) > x->mv_row_min) &
((ref_mv->as_mv.row + 1) < x->mv_row_max) &
((ref_mv->as_mv.col - 1) > x->mv_col_min) &
((ref_mv->as_mv.col + 1) < x->mv_col_max);
if (all_in) {
unsigned int sad_array[4];
unsigned char const *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, mvjsadcost,
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, mvjsadcost,
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, mvjcost, mvcost, x->errorperbit);
else
return INT_MAX;
}
/* This function is called when we do joint motion search in comp_inter_inter
* mode.
*/
int vp9_refining_search_8p_c(MACROBLOCK *x,
int_mv *ref_mv, int error_per_bit,
int search_range, vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2], int_mv *center_mv,
const uint8_t *second_pred, int w, int h) {
const MACROBLOCKD* const xd = &x->e_mbd;
MV neighbors[8] = {{-1, 0}, {0, -1}, {0, 1}, {1, 0},
{-1, -1}, {1, -1}, {-1, 1}, {1, 1}};
int i, j;
int this_row_offset, this_col_offset;
int what_stride = x->plane[0].src.stride;
int in_what_stride = xd->plane[0].pre[0].stride;
uint8_t *what = x->plane[0].src.buf;
uint8_t *best_address = xd->plane[0].pre[0].buf +
(ref_mv->as_mv.row * xd->plane[0].pre[0].stride) +
ref_mv->as_mv.col;
uint8_t *check_here;
unsigned int thissad;
int_mv this_mv;
unsigned int bestsad = INT_MAX;
int_mv fcenter_mv;
int *mvjsadcost = x->nmvjointsadcost;
int *mvsadcost[2] = {x->nmvsadcost[0], x->nmvsadcost[1]};
fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
/* Get compound pred by averaging two pred blocks. */
bestsad = fn_ptr->sdaf(what, what_stride, best_address, in_what_stride,
second_pred, 0x7fffffff) +
mvsad_err_cost(ref_mv, &fcenter_mv, mvjsadcost, mvsadcost, error_per_bit);
for (i = 0; i < search_range; i++) {
int best_site = -1;
for (j = 0; j < 8; 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;
/* Get compound block and use it to calculate SAD. */
thissad = fn_ptr->sdaf(what, what_stride, check_here, in_what_stride,
second_pred, 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, mvjsadcost,
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) {
// FIXME(rbultje, yunqing): add full-pixel averaging variance functions
// so we don't have to use the subpixel with xoff=0,yoff=0 here.
return fn_ptr->svaf(best_address, in_what_stride, 0, 0,
what, what_stride, (unsigned int *)(&thissad),
second_pred) +
mv_err_cost(&this_mv, center_mv, mvjcost, mvcost, x->errorperbit);
} else {
return INT_MAX;
}
}
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