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aom/vp8/encoder/mcomp.c

2033 строки
61 KiB
C
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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_rtcd.h"
#include "./vpx_dsp_rtcd.h"
#include "onyx_int.h"
#include "mcomp.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_config.h"
#include <stdio.h>
#include <limits.h>
#include <math.h>
#include "vp8/common/findnearmv.h"
#include "vp8/common/common.h"
#ifdef VP8_ENTROPY_STATS
static int mv_ref_ct [31] [4] [2];
static int mv_mode_cts [4] [2];
#endif
int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight)
{
/* 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) >> 1] + mvcost[1][(mv->as_mv.col - ref->as_mv.col) >> 1]) * Weight) >> 7;
}
static int mv_err_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int error_per_bit)
{
/* Ignore mv costing if mvcost is NULL */
if (mvcost)
return ((mvcost[0][(mv->as_mv.row - ref->as_mv.row) >> 1] +
mvcost[1][(mv->as_mv.col - ref->as_mv.col) >> 1])
* 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 mv costing if mvsadcost 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.
*/
/* estimated cost of a motion vector (r,c) */
#define MVC(r,c) (mvcost ? ((mvcost[0][(r)-rr] + mvcost[1][(c) - rc]) * error_per_bit + 128 )>>8 : 0)
/* pointer to predictor base of a motionvector */
#define PRE(r,c) (y + (((r)>>2) * y_stride + ((c)>>2) -(offset)))
/* convert motion vector component to offset for svf calc */
#define SP(x) (((x)&3)<<1)
/* returns subpixel variance error function. */
#define DIST(r,c) vfp->svf( PRE(r,c), y_stride, SP(c),SP(r), z,b->src_stride,&sse)
#define IFMVCV(r,c,s,e) if ( c >= minc && c <= maxc && r >= minr && r <= maxr) s else e;
/* returns distortion + motion vector cost */
#define ERR(r,c) (MVC(r,c)+DIST(r,c))
/* 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=UINT_MAX;)
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);
int rr = ref_mv->as_mv.row >> 1, rc = ref_mv->as_mv.col >> 1;
int br = bestmv->as_mv.row * 4, bc = bestmv->as_mv.col * 4;
int tr = br, tc = bc;
unsigned int besterr;
unsigned int left, right, up, down, diag;
unsigned int sse;
unsigned int whichdir;
unsigned int halfiters = 4;
unsigned int quarteriters = 4;
int thismse;
int minc = MAX(x->mv_col_min * 4,
(ref_mv->as_mv.col >> 1) - ((1 << mvlong_width) - 1));
int maxc = MIN(x->mv_col_max * 4,
(ref_mv->as_mv.col >> 1) + ((1 << mvlong_width) - 1));
int minr = MAX(x->mv_row_min * 4,
(ref_mv->as_mv.row >> 1) - ((1 << mvlong_width) - 1));
int maxr = MIN(x->mv_row_max * 4,
(ref_mv->as_mv.row >> 1) + ((1 << mvlong_width) - 1));
int y_stride;
int offset;
int pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
#if ARCH_X86 || ARCH_X86_64
MACROBLOCKD *xd = &x->e_mbd;
unsigned char *y_0 = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
unsigned char *y;
int buf_r1, buf_r2, buf_c1;
/* Clamping to avoid out-of-range data access */
buf_r1 = ((bestmv->as_mv.row - 3) < x->mv_row_min)?(bestmv->as_mv.row - x->mv_row_min):3;
buf_r2 = ((bestmv->as_mv.row + 3) > x->mv_row_max)?(x->mv_row_max - bestmv->as_mv.row):3;
buf_c1 = ((bestmv->as_mv.col - 3) < x->mv_col_min)?(bestmv->as_mv.col - x->mv_col_min):3;
y_stride = 32;
/* Copy to intermediate buffer before searching. */
vfp->copymem(y_0 - buf_c1 - pre_stride*buf_r1, 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 = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
y_stride = pre_stride;
#endif
offset = (bestmv->as_mv.row) * y_stride + bestmv->as_mv.col;
/* central mv */
bestmv->as_mv.row *= 8;
bestmv->as_mv.col *= 8;
/* 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);
/* 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 - 2);
CHECK_BETTER(right, tr, tc + 2);
CHECK_BETTER(up, tr - 2, tc);
CHECK_BETTER(down, tr + 2, tc);
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
switch (whichdir)
{
case 0:
CHECK_BETTER(diag, tr - 2, tc - 2);
break;
case 1:
CHECK_BETTER(diag, tr - 2, tc + 2);
break;
case 2:
CHECK_BETTER(diag, tr + 2, tc - 2);
break;
case 3:
CHECK_BETTER(diag, tr + 2, tc + 2);
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 */
while (--quarteriters)
{
CHECK_BETTER(left, tr, tc - 1);
CHECK_BETTER(right, tr, tc + 1);
CHECK_BETTER(up, tr - 1, tc);
CHECK_BETTER(down, tr + 1, tc);
whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
switch (whichdir)
{
case 0:
CHECK_BETTER(diag, tr - 1, tc - 1);
break;
case 1:
CHECK_BETTER(diag, tr - 1, tc + 1);
break;
case 2:
CHECK_BETTER(diag, tr + 1, tc - 1);
break;
case 3:
CHECK_BETTER(diag, tr + 1, tc + 1);
break;
}
/* no reason to check the same one again. */
if (tr == br && tc == bc)
break;
tr = br;
tc = bc;
}
bestmv->as_mv.row = br * 2;
bestmv->as_mv.col = bc * 2;
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
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;
unsigned char *z = (*(b->base_src) + b->src);
int left, right, up, down, diag;
unsigned int sse;
int whichdir ;
int thismse;
int y_stride;
int pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
#if ARCH_X86 || ARCH_X86_64
MACROBLOCKD *xd = &x->e_mbd;
unsigned char *y_0 = base_pre + d->offset + (bestmv->as_mv.row) * 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(y_0 - 1 - pre_stride, pre_stride, xd->y_buf, y_stride, 18);
y = xd->y_buf + y_stride + 1;
#else
unsigned char *y = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
y_stride = pre_stride;
#endif
/* central mv */
bestmv->as_mv.row *= 8;
bestmv->as_mv.col *= 8;
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);
/* 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);
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);
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);
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);
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);
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;
if (bestmv->as_mv.col < startmv.as_mv.col)
y--;
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, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
}
else
{
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - 1, y_stride, 6, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
}
left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
if (left < bestmse)
{
*bestmv = this_mv;
bestmse = left;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.col += 4;
thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
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, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, 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, this_mv.as_mv.col & 7, 6, z, b->src_stride, &sse);
}
up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
if (up < bestmse)
{
*bestmv = this_mv;
bestmse = up;
*distortion = thismse;
*sse1 = sse;
}
this_mv.as_mv.row += 4;
thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
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:
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, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
}
else
{
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - 1, y_stride, 6, this_mv.as_mv.row & 7, 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, this_mv.as_mv.col & 7, 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, 6, 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, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, 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, this_mv.as_mv.col & 7, 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, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
}
else
{
this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
thismse = vfp->svf(y - 1, y_stride, 6, this_mv.as_mv.row & 7, 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, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
break;
}
diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
if (diag < bestmse)
{
*bestmv = this_mv;
bestmse = diag;
*distortion = thismse;
*sse1 = sse;
}
return bestmse;
}
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;
int pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
#if ARCH_X86 || ARCH_X86_64
MACROBLOCKD *xd = &x->e_mbd;
unsigned char *y_0 = base_pre + d->offset + (bestmv->as_mv.row) * 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(y_0 - 1 - pre_stride, pre_stride, xd->y_buf, y_stride, 18);
y = xd->y_buf + y_stride + 1;
#else
unsigned char *y = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
y_stride = pre_stride;
#endif
/* central mv */
bestmv->as_mv.row *= 8;
bestmv->as_mv.col *= 8;
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);
/* 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);
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);
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);
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);
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);
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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
int br, bc;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
unsigned char *base_offset;
unsigned char *this_offset;
int k = -1;
int all_in;
int best_site = -1;
int hex_range = 127;
int dia_range = 8;
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;
(void)mvcost;
/* 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 *)(base_pre + d->offset);
this_offset = base_offset + (br * (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)
+ mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, sad_per_bit);
#if CONFIG_MULTI_RES_ENCODING
/* Lower search range based on prediction info */
if (search_param >= 6) goto cal_neighbors;
else if (search_param >= 5) hex_range = 4;
else if (search_param >= 4) hex_range = 6;
else if (search_param >= 3) hex_range = 15;
else if (search_param >= 2) hex_range = 31;
else if (search_param >= 1) hex_range = 63;
dia_range = 8;
#else
(void)search_param;
#endif
/* hex search */
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);
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);
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 < hex_range; 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);
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);
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 < dia_range; 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);
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);
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_c
(
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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
unsigned char *best_address;
int tot_steps;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
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;
int *mvsadcost[2];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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 *)(base_pre + d->offset + (ref_row * pre_stride) + ref_col);
best_address = in_what;
/* Check the starting position */
bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride)
+ 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);
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;
return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
unsigned char *best_address;
int tot_steps;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
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;
int *mvsadcost[2];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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 *)(base_pre + d->offset + (ref_row * pre_stride) + ref_col);
best_address = in_what;
/* Check the starting position */
bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride)
+ 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)
{
const 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);
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 * 8;
this_mv.as_mv.col = best_mv->as_mv.col * 8;
return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
int vp8_full_search_sad_c(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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
int mv_stride = pre_stride;
unsigned char *bestaddress;
int_mv *best_mv = &d->bmi.mv;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
int r, c;
unsigned char *check_here;
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];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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 = base_pre + d->offset;
bestaddress = in_what + (ref_row * 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)
+ 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);
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;
return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
int mv_stride = pre_stride;
unsigned char *bestaddress;
int_mv *best_mv = &d->bmi.mv;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
int r, c;
unsigned char *check_here;
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];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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 = base_pre + d->offset;
bestaddress = in_what + (ref_row * 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)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
/* Apply further limits to prevent us looking using vectors that stretch
* beyond 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);
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;
return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
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;
int pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
unsigned char *in_what;
int in_what_stride = pre_stride;
int mv_stride = pre_stride;
unsigned char *bestaddress;
int_mv *best_mv = &d->bmi.mv;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
int r, c;
unsigned char *check_here;
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;
// TODO(johannkoenig): check if this alignment is necessary.
DECLARE_ALIGNED(16, unsigned int, sad_array8[8]);
unsigned int sad_array[3];
int *mvsadcost[2];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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 = base_pre + d->offset;
bestaddress = in_what + (ref_row * 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)
+ mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
/* Apply further limits to prevent us looking using vectors that stretch
* beyond 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 = 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);
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 * 8;
this_mv.as_mv.col = best_mv->as_mv.col * 8;
return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
int vp8_refining_search_sad_c(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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
unsigned char *what = (*(b->base_src) + b->src);
unsigned char *best_address = (unsigned char *)(base_pre + d->offset +
(ref_mv->as_mv.row * pre_stride) + ref_mv->as_mv.col);
unsigned char *check_here;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
int *mvsadcost[2];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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)
+ 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);
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;
return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
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 pre_stride = x->e_mbd.pre.y_stride;
unsigned char *base_pre = x->e_mbd.pre.y_buffer;
int in_what_stride = pre_stride;
unsigned char *what = (*(b->base_src) + b->src);
unsigned char *best_address = (unsigned char *)(base_pre + d->offset +
(ref_mv->as_mv.row * pre_stride) + ref_mv->as_mv.col);
unsigned char *check_here;
int_mv this_mv;
unsigned int bestsad;
unsigned int thissad;
int *mvsadcost[2];
int_mv fcenter_mv;
mvsadcost[0] = x->mvsadcost[0];
mvsadcost[1] = x->mvsadcost[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)
+ 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];
const 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);
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 * 8;
this_mv.as_mv.col = ref_mv->as_mv.col * 8;
return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+ mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
}
#ifdef VP8_ENTROPY_STATS
void print_mode_context(void)
{
FILE *f = fopen("modecont.c", "w");
int i, j;
fprintf(f, "#include \"entropy.h\"\n");
fprintf(f, "const int vp8_mode_contexts[6][4] =\n");
fprintf(f, "{\n");
for (j = 0; j < 6; j++)
{
fprintf(f, " { /* %d */\n", j);
fprintf(f, " ");
for (i = 0; i < 4; i++)
{
int overal_prob;
int this_prob;
int count;
/* Overall probs */
count = mv_mode_cts[i][0] + mv_mode_cts[i][1];
if (count)
overal_prob = 256 * mv_mode_cts[i][0] / count;
else
overal_prob = 128;
if (overal_prob == 0)
overal_prob = 1;
/* 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 VP8_ENTROPY_STATS stats code */
#ifdef VP8_ENTROPY_STATS
void init_mv_ref_counts()
{
memset(mv_ref_ct, 0, sizeof(mv_ref_ct));
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 VP8_ENTROPY_STATS stats code */
#endif
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