ref: e6d5ad6ea7c716033cef9da8daafd62f21bc5575
dir: /vp9/common/vp9_reconinter.c/
/*
* 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 <assert.h>
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_filter.h"
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_reconintra.h"
void vp9_setup_scale_factors_for_frame(struct scale_factors *scale,
YV12_BUFFER_CONFIG *other,
int this_w, int this_h) {
int other_h = other->y_height;
int other_w = other->y_width;
scale->x_num = other_w;
scale->x_den = this_w;
scale->x_offset_q4 = 0; // calculated per-mb
scale->x_step_q4 = 16 * other_w / this_w;
scale->y_num = other_h;
scale->y_den = this_h;
scale->y_offset_q4 = 0; // calculated per-mb
scale->y_step_q4 = 16 * other_h / this_h;
// TODO(agrange): Investigate the best choice of functions to use here
// for EIGHTTAP_SMOOTH. Since it is not interpolating, need to choose what
// to do at full-pel offsets. The current selection, where the filter is
// applied in one direction only, and not at all for 0,0, seems to give the
// best quality, but it may be worth trying an additional mode that does
// do the filtering on full-pel.
if (scale->x_step_q4 == 16) {
if (scale->y_step_q4 == 16) {
// No scaling in either direction.
scale->predict[0][0][0] = vp9_convolve_copy;
scale->predict[0][0][1] = vp9_convolve_avg;
scale->predict[0][1][0] = vp9_convolve8_vert;
scale->predict[0][1][1] = vp9_convolve8_avg_vert;
scale->predict[1][0][0] = vp9_convolve8_horiz;
scale->predict[1][0][1] = vp9_convolve8_avg_horiz;
} else {
// No scaling in x direction. Must always scale in the y direction.
scale->predict[0][0][0] = vp9_convolve8_vert;
scale->predict[0][0][1] = vp9_convolve8_avg_vert;
scale->predict[0][1][0] = vp9_convolve8_vert;
scale->predict[0][1][1] = vp9_convolve8_avg_vert;
scale->predict[1][0][0] = vp9_convolve8;
scale->predict[1][0][1] = vp9_convolve8_avg;
}
} else {
if (scale->y_step_q4 == 16) {
// No scaling in the y direction. Must always scale in the x direction.
scale->predict[0][0][0] = vp9_convolve8_horiz;
scale->predict[0][0][1] = vp9_convolve8_avg_horiz;
scale->predict[0][1][0] = vp9_convolve8;
scale->predict[0][1][1] = vp9_convolve8_avg;
scale->predict[1][0][0] = vp9_convolve8_horiz;
scale->predict[1][0][1] = vp9_convolve8_avg_horiz;
} else {
// Must always scale in both directions.
scale->predict[0][0][0] = vp9_convolve8;
scale->predict[0][0][1] = vp9_convolve8_avg;
scale->predict[0][1][0] = vp9_convolve8;
scale->predict[0][1][1] = vp9_convolve8_avg;
scale->predict[1][0][0] = vp9_convolve8;
scale->predict[1][0][1] = vp9_convolve8_avg;
}
}
// 2D subpel motion always gets filtered in both directions
scale->predict[1][1][0] = vp9_convolve8;
scale->predict[1][1][1] = vp9_convolve8_avg;
}
void vp9_setup_interp_filters(MACROBLOCKD *xd,
INTERPOLATIONFILTERTYPE mcomp_filter_type,
VP9_COMMON *cm) {
int i;
/* Calculate scaling factors for each of the 3 available references */
for (i = 0; i < 3; ++i) {
if (cm->active_ref_idx[i] >= NUM_YV12_BUFFERS) {
memset(&cm->active_ref_scale[i], 0, sizeof(cm->active_ref_scale[i]));
continue;
}
vp9_setup_scale_factors_for_frame(&cm->active_ref_scale[i],
&cm->yv12_fb[cm->active_ref_idx[i]],
cm->mb_cols * 16, cm->mb_rows * 16);
}
if (xd->mode_info_context) {
MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
set_scale_factors(xd,
mbmi->ref_frame - 1,
mbmi->second_ref_frame - 1,
cm->active_ref_scale);
}
switch (mcomp_filter_type) {
case EIGHTTAP:
case SWITCHABLE:
xd->subpix.filter_x = xd->subpix.filter_y = vp9_sub_pel_filters_8;
break;
case EIGHTTAP_SMOOTH:
xd->subpix.filter_x = xd->subpix.filter_y = vp9_sub_pel_filters_8lp;
break;
case EIGHTTAP_SHARP:
xd->subpix.filter_x = xd->subpix.filter_y = vp9_sub_pel_filters_8s;
break;
case BILINEAR:
xd->subpix.filter_x = xd->subpix.filter_y = vp9_bilinear_filters;
break;
#if CONFIG_ENABLE_6TAP
case SIXTAP:
xd->subpix.filter_x = xd->subpix.filter_y = vp9_sub_pel_filters_6;
break;
#endif
}
assert(((intptr_t)xd->subpix.filter_x & 0xff) == 0);
}
void vp9_copy_mem16x16_c(const uint8_t *src,
int src_stride,
uint8_t *dst,
int dst_stride) {
int r;
for (r = 0; r < 16; r++) {
#if !(CONFIG_FAST_UNALIGNED)
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
dst[3] = src[3];
dst[4] = src[4];
dst[5] = src[5];
dst[6] = src[6];
dst[7] = src[7];
dst[8] = src[8];
dst[9] = src[9];
dst[10] = src[10];
dst[11] = src[11];
dst[12] = src[12];
dst[13] = src[13];
dst[14] = src[14];
dst[15] = src[15];
#else
((uint32_t *)dst)[0] = ((const uint32_t *)src)[0];
((uint32_t *)dst)[1] = ((const uint32_t *)src)[1];
((uint32_t *)dst)[2] = ((const uint32_t *)src)[2];
((uint32_t *)dst)[3] = ((const uint32_t *)src)[3];
#endif
src += src_stride;
dst += dst_stride;
}
}
void vp9_copy_mem8x8_c(const uint8_t *src,
int src_stride,
uint8_t *dst,
int dst_stride) {
int r;
for (r = 0; r < 8; r++) {
#if !(CONFIG_FAST_UNALIGNED)
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
dst[3] = src[3];
dst[4] = src[4];
dst[5] = src[5];
dst[6] = src[6];
dst[7] = src[7];
#else
((uint32_t *)dst)[0] = ((const uint32_t *)src)[0];
((uint32_t *)dst)[1] = ((const uint32_t *)src)[1];
#endif
src += src_stride;
dst += dst_stride;
}
}
void vp9_copy_mem8x4_c(const uint8_t *src,
int src_stride,
uint8_t *dst,
int dst_stride) {
int r;
for (r = 0; r < 4; r++) {
#if !(CONFIG_FAST_UNALIGNED)
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
dst[3] = src[3];
dst[4] = src[4];
dst[5] = src[5];
dst[6] = src[6];
dst[7] = src[7];
#else
((uint32_t *)dst)[0] = ((const uint32_t *)src)[0];
((uint32_t *)dst)[1] = ((const uint32_t *)src)[1];
#endif
src += src_stride;
dst += dst_stride;
}
}
static void set_scaled_offsets(struct scale_factors *scale,
int row, int col) {
const int x_q4 = 16 * col;
const int y_q4 = 16 * row;
scale->x_offset_q4 = (x_q4 * scale->x_num / scale->x_den) & 0xf;
scale->y_offset_q4 = (y_q4 * scale->y_num / scale->y_den) & 0xf;
}
static int32_t scale_motion_vector_component_q3(int mv_q3,
int num,
int den,
int offset_q4) {
// returns the scaled and offset value of the mv component.
const int32_t mv_q4 = mv_q3 << 1;
/* TODO(jkoleszar): make fixed point, or as a second multiply? */
return mv_q4 * num / den + offset_q4;
}
static int32_t scale_motion_vector_component_q4(int mv_q4,
int num,
int den,
int offset_q4) {
// returns the scaled and offset value of the mv component.
/* TODO(jkoleszar): make fixed point, or as a second multiply? */
return mv_q4 * num / den + offset_q4;
}
static int_mv32 scale_motion_vector_q3_to_q4(
const int_mv *src_mv,
const struct scale_factors *scale) {
// returns mv * scale + offset
int_mv32 result;
result.as_mv.row = scale_motion_vector_component_q3(src_mv->as_mv.row,
scale->y_num,
scale->y_den,
scale->y_offset_q4);
result.as_mv.col = scale_motion_vector_component_q3(src_mv->as_mv.col,
scale->x_num,
scale->x_den,
scale->x_offset_q4);
return result;
}
void vp9_build_inter_predictor(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int_mv *mv_q3,
const struct scale_factors *scale,
int w, int h, int do_avg,
const struct subpix_fn_table *subpix) {
int_mv32 mv = scale_motion_vector_q3_to_q4(mv_q3, scale);
src += (mv.as_mv.row >> 4) * src_stride + (mv.as_mv.col >> 4);
scale->predict[!!(mv.as_mv.col & 15)][!!(mv.as_mv.row & 15)][do_avg](
src, src_stride, dst, dst_stride,
subpix->filter_x[mv.as_mv.col & 15], scale->x_step_q4,
subpix->filter_y[mv.as_mv.row & 15], scale->y_step_q4,
w, h);
}
/* Like vp9_build_inter_predictor, but takes the full-pel part of the
* mv separately, and the fractional part as a q4.
*/
void vp9_build_inter_predictor_q4(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int_mv *fullpel_mv_q3,
const int_mv *frac_mv_q4,
const struct scale_factors *scale,
int w, int h, int do_avg,
const struct subpix_fn_table *subpix) {
const int mv_row_q4 = ((fullpel_mv_q3->as_mv.row >> 3) << 4)
+ (frac_mv_q4->as_mv.row & 0xf);
const int mv_col_q4 = ((fullpel_mv_q3->as_mv.col >> 3) << 4)
+ (frac_mv_q4->as_mv.col & 0xf);
const int scaled_mv_row_q4 =
scale_motion_vector_component_q4(mv_row_q4, scale->y_num, scale->y_den,
scale->y_offset_q4);
const int scaled_mv_col_q4 =
scale_motion_vector_component_q4(mv_col_q4, scale->x_num, scale->x_den,
scale->x_offset_q4);
const int subpel_x = scaled_mv_col_q4 & 15;
const int subpel_y = scaled_mv_row_q4 & 15;
src += (scaled_mv_row_q4 >> 4) * src_stride + (scaled_mv_col_q4 >> 4);
scale->predict[!!subpel_x][!!subpel_y][do_avg](
src, src_stride, dst, dst_stride,
subpix->filter_x[subpel_x], scale->x_step_q4,
subpix->filter_y[subpel_y], scale->y_step_q4,
w, h);
}
static void build_2x1_inter_predictor(const BLOCKD *d0, const BLOCKD *d1,
struct scale_factors *scale,
int block_size, int stride, int which_mv,
const struct subpix_fn_table *subpix,
int row, int col) {
assert(d1->predictor - d0->predictor == block_size);
assert(d1->pre == d0->pre + block_size);
set_scaled_offsets(&scale[which_mv], row, col);
if (d0->bmi.as_mv[which_mv].as_int == d1->bmi.as_mv[which_mv].as_int) {
uint8_t **base_pre = which_mv ? d0->base_second_pre : d0->base_pre;
vp9_build_inter_predictor(*base_pre + d0->pre,
d0->pre_stride,
d0->predictor, stride,
&d0->bmi.as_mv[which_mv],
&scale[which_mv],
2 * block_size, block_size, which_mv,
subpix);
} else {
uint8_t **base_pre0 = which_mv ? d0->base_second_pre : d0->base_pre;
uint8_t **base_pre1 = which_mv ? d1->base_second_pre : d1->base_pre;
vp9_build_inter_predictor(*base_pre0 + d0->pre,
d0->pre_stride,
d0->predictor, stride,
&d0->bmi.as_mv[which_mv],
&scale[which_mv],
block_size, block_size, which_mv,
subpix);
set_scaled_offsets(&scale[which_mv], row, col + block_size);
vp9_build_inter_predictor(*base_pre1 + d1->pre,
d1->pre_stride,
d1->predictor, stride,
&d1->bmi.as_mv[which_mv],
&scale[which_mv],
block_size, block_size, which_mv,
subpix);
}
}
/*encoder only*/
void vp9_build_inter4x4_predictors_mbuv(MACROBLOCKD *xd,
int mb_row,
int mb_col) {
int i, j;
BLOCKD *blockd = xd->block;
/* build uv mvs */
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
int yoffset = i * 8 + j * 2;
int uoffset = 16 + i * 2 + j;
int voffset = 20 + i * 2 + j;
int temp;
temp = blockd[yoffset ].bmi.as_mv[0].as_mv.row
+ blockd[yoffset + 1].bmi.as_mv[0].as_mv.row
+ blockd[yoffset + 4].bmi.as_mv[0].as_mv.row
+ blockd[yoffset + 5].bmi.as_mv[0].as_mv.row;
if (temp < 0) temp -= 4;
else temp += 4;
xd->block[uoffset].bmi.as_mv[0].as_mv.row = (temp / 8) &
xd->fullpixel_mask;
temp = blockd[yoffset ].bmi.as_mv[0].as_mv.col
+ blockd[yoffset + 1].bmi.as_mv[0].as_mv.col
+ blockd[yoffset + 4].bmi.as_mv[0].as_mv.col
+ blockd[yoffset + 5].bmi.as_mv[0].as_mv.col;
if (temp < 0) temp -= 4;
else temp += 4;
blockd[uoffset].bmi.as_mv[0].as_mv.col = (temp / 8) &
xd->fullpixel_mask;
blockd[voffset].bmi.as_mv[0].as_mv.row =
blockd[uoffset].bmi.as_mv[0].as_mv.row;
blockd[voffset].bmi.as_mv[0].as_mv.col =
blockd[uoffset].bmi.as_mv[0].as_mv.col;
if (xd->mode_info_context->mbmi.second_ref_frame > 0) {
temp = blockd[yoffset ].bmi.as_mv[1].as_mv.row
+ blockd[yoffset + 1].bmi.as_mv[1].as_mv.row
+ blockd[yoffset + 4].bmi.as_mv[1].as_mv.row
+ blockd[yoffset + 5].bmi.as_mv[1].as_mv.row;
if (temp < 0) {
temp -= 4;
} else {
temp += 4;
}
blockd[uoffset].bmi.as_mv[1].as_mv.row = (temp / 8) &
xd->fullpixel_mask;
temp = blockd[yoffset ].bmi.as_mv[1].as_mv.col
+ blockd[yoffset + 1].bmi.as_mv[1].as_mv.col
+ blockd[yoffset + 4].bmi.as_mv[1].as_mv.col
+ blockd[yoffset + 5].bmi.as_mv[1].as_mv.col;
if (temp < 0) {
temp -= 4;
} else {
temp += 4;
}
blockd[uoffset].bmi.as_mv[1].as_mv.col = (temp / 8) &
xd->fullpixel_mask;
blockd[voffset].bmi.as_mv[1].as_mv.row =
blockd[uoffset].bmi.as_mv[1].as_mv.row;
blockd[voffset].bmi.as_mv[1].as_mv.col =
blockd[uoffset].bmi.as_mv[1].as_mv.col;
}
}
}
for (i = 16; i < 24; i += 2) {
const int use_second_ref = xd->mode_info_context->mbmi.second_ref_frame > 0;
const int x = 4 * (i & 1);
const int y = ((i - 16) >> 1) * 4;
int which_mv;
BLOCKD *d0 = &blockd[i];
BLOCKD *d1 = &blockd[i + 1];
for (which_mv = 0; which_mv < 1 + use_second_ref; ++which_mv) {
build_2x1_inter_predictor(d0, d1, xd->scale_factor_uv, 4, 8, which_mv,
&xd->subpix, mb_row * 8 + y, mb_col * 8 + x);
}
}
}
static void clamp_mv_to_umv_border(MV *mv, const MACROBLOCKD *xd) {
/* If the MV points so far into the UMV border that no visible pixels
* are used for reconstruction, the subpel part of the MV can be
* discarded and the MV limited to 16 pixels with equivalent results.
*
* This limit kicks in at 19 pixels for the top and left edges, for
* the 16 pixels plus 3 taps right of the central pixel when subpel
* filtering. The bottom and right edges use 16 pixels plus 2 pixels
* left of the central pixel when filtering.
*/
if (mv->col < (xd->mb_to_left_edge - ((16 + VP9_INTERP_EXTEND) << 3)))
mv->col = xd->mb_to_left_edge - (16 << 3);
else if (mv->col > xd->mb_to_right_edge + ((15 + VP9_INTERP_EXTEND) << 3))
mv->col = xd->mb_to_right_edge + (16 << 3);
if (mv->row < (xd->mb_to_top_edge - ((16 + VP9_INTERP_EXTEND) << 3)))
mv->row = xd->mb_to_top_edge - (16 << 3);
else if (mv->row > xd->mb_to_bottom_edge + ((15 + VP9_INTERP_EXTEND) << 3))
mv->row = xd->mb_to_bottom_edge + (16 << 3);
}
/* A version of the above function for chroma block MVs.*/
static void clamp_uvmv_to_umv_border(MV *mv, const MACROBLOCKD *xd) {
const int extend = VP9_INTERP_EXTEND;
mv->col = (2 * mv->col < (xd->mb_to_left_edge - ((16 + extend) << 3))) ?
(xd->mb_to_left_edge - (16 << 3)) >> 1 : mv->col;
mv->col = (2 * mv->col > xd->mb_to_right_edge + ((15 + extend) << 3)) ?
(xd->mb_to_right_edge + (16 << 3)) >> 1 : mv->col;
mv->row = (2 * mv->row < (xd->mb_to_top_edge - ((16 + extend) << 3))) ?
(xd->mb_to_top_edge - (16 << 3)) >> 1 : mv->row;
mv->row = (2 * mv->row > xd->mb_to_bottom_edge + ((15 + extend) << 3)) ?
(xd->mb_to_bottom_edge + (16 << 3)) >> 1 : mv->row;
}
/*encoder only*/
void vp9_build_inter16x16_predictors_mby(MACROBLOCKD *xd,
uint8_t *dst_y,
int dst_ystride,
int mb_row,
int mb_col) {
const int use_second_ref = xd->mode_info_context->mbmi.second_ref_frame > 0;
int which_mv;
for (which_mv = 0; which_mv < 1 + use_second_ref; ++which_mv) {
const int clamp_mvs = which_mv ?
xd->mode_info_context->mbmi.need_to_clamp_secondmv :
xd->mode_info_context->mbmi.need_to_clamp_mvs;
uint8_t *base_pre = which_mv ? xd->second_pre.y_buffer : xd->pre.y_buffer;
int pre_stride = which_mv ? xd->second_pre.y_stride : xd->pre.y_stride;
int_mv ymv;
ymv.as_int = xd->mode_info_context->mbmi.mv[which_mv].as_int;
if (clamp_mvs)
clamp_mv_to_umv_border(&ymv.as_mv, xd);
set_scaled_offsets(&xd->scale_factor[which_mv], mb_row * 16, mb_col * 16);
vp9_build_inter_predictor(base_pre, pre_stride,
dst_y, dst_ystride,
&ymv, &xd->scale_factor[which_mv],
16, 16, which_mv, &xd->subpix);
}
}
void vp9_build_inter16x16_predictors_mbuv(MACROBLOCKD *xd,
uint8_t *dst_u,
uint8_t *dst_v,
int dst_uvstride,
int mb_row,
int mb_col) {
const int use_second_ref = xd->mode_info_context->mbmi.second_ref_frame > 0;
int which_mv;
for (which_mv = 0; which_mv < 1 + use_second_ref; ++which_mv) {
const int clamp_mvs =
which_mv ? xd->mode_info_context->mbmi.need_to_clamp_secondmv
: xd->mode_info_context->mbmi.need_to_clamp_mvs;
uint8_t *uptr, *vptr;
int pre_stride = which_mv ? xd->second_pre.y_stride
: xd->pre.y_stride;
int_mv _o16x16mv;
int_mv _16x16mv;
_16x16mv.as_int = xd->mode_info_context->mbmi.mv[which_mv].as_int;
if (clamp_mvs)
clamp_mv_to_umv_border(&_16x16mv.as_mv, xd);
_o16x16mv = _16x16mv;
/* calc uv motion vectors */
if (_16x16mv.as_mv.row < 0)
_16x16mv.as_mv.row -= 1;
else
_16x16mv.as_mv.row += 1;
if (_16x16mv.as_mv.col < 0)
_16x16mv.as_mv.col -= 1;
else
_16x16mv.as_mv.col += 1;
_16x16mv.as_mv.row /= 2;
_16x16mv.as_mv.col /= 2;
_16x16mv.as_mv.row &= xd->fullpixel_mask;
_16x16mv.as_mv.col &= xd->fullpixel_mask;
pre_stride >>= 1;
uptr = (which_mv ? xd->second_pre.u_buffer : xd->pre.u_buffer);
vptr = (which_mv ? xd->second_pre.v_buffer : xd->pre.v_buffer);
set_scaled_offsets(&xd->scale_factor_uv[which_mv],
mb_row * 16, mb_col * 16);
vp9_build_inter_predictor_q4(uptr, pre_stride,
dst_u, dst_uvstride,
&_16x16mv, &_o16x16mv,
&xd->scale_factor_uv[which_mv],
8, 8, which_mv, &xd->subpix);
vp9_build_inter_predictor_q4(vptr, pre_stride,
dst_v, dst_uvstride,
&_16x16mv, &_o16x16mv,
&xd->scale_factor_uv[which_mv],
8, 8, which_mv, &xd->subpix);
}
}
void vp9_build_inter32x32_predictors_sb(MACROBLOCKD *x,
uint8_t *dst_y,
uint8_t *dst_u,
uint8_t *dst_v,
int dst_ystride,
int dst_uvstride,
int mb_row,
int mb_col) {
uint8_t *y1 = x->pre.y_buffer, *u1 = x->pre.u_buffer, *v1 = x->pre.v_buffer;
uint8_t *y2 = x->second_pre.y_buffer, *u2 = x->second_pre.u_buffer,
*v2 = x->second_pre.v_buffer;
int edge[4], n;
edge[0] = x->mb_to_top_edge;
edge[1] = x->mb_to_bottom_edge;
edge[2] = x->mb_to_left_edge;
edge[3] = x->mb_to_right_edge;
for (n = 0; n < 4; n++) {
const int x_idx = n & 1, y_idx = n >> 1;
int scaled_uv_offset;
x->mb_to_top_edge = edge[0] - ((y_idx * 16) << 3);
x->mb_to_bottom_edge = edge[1] + (((1 - y_idx) * 16) << 3);
x->mb_to_left_edge = edge[2] - ((x_idx * 16) << 3);
x->mb_to_right_edge = edge[3] + (((1 - x_idx) * 16) << 3);
x->pre.y_buffer = y1 + scaled_buffer_offset(x_idx * 16,
y_idx * 16,
x->pre.y_stride,
&x->scale_factor[0]);
scaled_uv_offset = scaled_buffer_offset(x_idx * 8,
y_idx * 8,
x->pre.uv_stride,
&x->scale_factor_uv[0]);
x->pre.u_buffer = u1 + scaled_uv_offset;
x->pre.v_buffer = v1 + scaled_uv_offset;
if (x->mode_info_context->mbmi.second_ref_frame > 0) {
x->second_pre.y_buffer = y2 +
scaled_buffer_offset(x_idx * 16,
y_idx * 16,
x->second_pre.y_stride,
&x->scale_factor[1]);
scaled_uv_offset = scaled_buffer_offset(x_idx * 8,
y_idx * 8,
x->second_pre.uv_stride,
&x->scale_factor_uv[1]);
x->second_pre.u_buffer = u2 + scaled_uv_offset;
x->second_pre.v_buffer = v2 + scaled_uv_offset;
}
vp9_build_inter16x16_predictors_mb(x,
dst_y + y_idx * 16 * dst_ystride + x_idx * 16,
dst_u + y_idx * 8 * dst_uvstride + x_idx * 8,
dst_v + y_idx * 8 * dst_uvstride + x_idx * 8,
dst_ystride, dst_uvstride, mb_row + y_idx, mb_col + x_idx);
}
x->mb_to_top_edge = edge[0];
x->mb_to_bottom_edge = edge[1];
x->mb_to_left_edge = edge[2];
x->mb_to_right_edge = edge[3];
x->pre.y_buffer = y1;
x->pre.u_buffer = u1;
x->pre.v_buffer = v1;
if (x->mode_info_context->mbmi.second_ref_frame > 0) {
x->second_pre.y_buffer = y2;
x->second_pre.u_buffer = u2;
x->second_pre.v_buffer = v2;
}
#if CONFIG_COMP_INTERINTRA_PRED
if (x->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME) {
vp9_build_interintra_32x32_predictors_sb(
x, dst_y, dst_u, dst_v, dst_ystride, dst_uvstride);
}
#endif
}
void vp9_build_inter64x64_predictors_sb(MACROBLOCKD *x,
uint8_t *dst_y,
uint8_t *dst_u,
uint8_t *dst_v,
int dst_ystride,
int dst_uvstride,
int mb_row,
int mb_col) {
uint8_t *y1 = x->pre.y_buffer, *u1 = x->pre.u_buffer, *v1 = x->pre.v_buffer;
uint8_t *y2 = x->second_pre.y_buffer, *u2 = x->second_pre.u_buffer,
*v2 = x->second_pre.v_buffer;
int edge[4], n;
edge[0] = x->mb_to_top_edge;
edge[1] = x->mb_to_bottom_edge;
edge[2] = x->mb_to_left_edge;
edge[3] = x->mb_to_right_edge;
for (n = 0; n < 4; n++) {
const int x_idx = n & 1, y_idx = n >> 1;
int scaled_uv_offset;
x->mb_to_top_edge = edge[0] - ((y_idx * 32) << 3);
x->mb_to_bottom_edge = edge[1] + (((1 - y_idx) * 32) << 3);
x->mb_to_left_edge = edge[2] - ((x_idx * 32) << 3);
x->mb_to_right_edge = edge[3] + (((1 - x_idx) * 32) << 3);
x->pre.y_buffer = y1 + scaled_buffer_offset(x_idx * 32,
y_idx * 32,
x->pre.y_stride,
&x->scale_factor[0]);
scaled_uv_offset = scaled_buffer_offset(x_idx * 16,
y_idx * 16,
x->pre.uv_stride,
&x->scale_factor_uv[0]);
x->pre.u_buffer = u1 + scaled_uv_offset;
x->pre.v_buffer = v1 + scaled_uv_offset;
if (x->mode_info_context->mbmi.second_ref_frame > 0) {
x->second_pre.y_buffer = y2 +
scaled_buffer_offset(x_idx * 32,
y_idx * 32,
x->second_pre.y_stride,
&x->scale_factor[1]);
scaled_uv_offset = scaled_buffer_offset(x_idx * 16,
y_idx * 16,
x->second_pre.uv_stride,
&x->scale_factor_uv[1]);
x->second_pre.u_buffer = u2 + scaled_uv_offset;
x->second_pre.v_buffer = v2 + scaled_uv_offset;
}
vp9_build_inter32x32_predictors_sb(x,
dst_y + y_idx * 32 * dst_ystride + x_idx * 32,
dst_u + y_idx * 16 * dst_uvstride + x_idx * 16,
dst_v + y_idx * 16 * dst_uvstride + x_idx * 16,
dst_ystride, dst_uvstride, mb_row + y_idx * 2, mb_col + x_idx * 2);
}
x->mb_to_top_edge = edge[0];
x->mb_to_bottom_edge = edge[1];
x->mb_to_left_edge = edge[2];
x->mb_to_right_edge = edge[3];
x->pre.y_buffer = y1;
x->pre.u_buffer = u1;
x->pre.v_buffer = v1;
if (x->mode_info_context->mbmi.second_ref_frame > 0) {
x->second_pre.y_buffer = y2;
x->second_pre.u_buffer = u2;
x->second_pre.v_buffer = v2;
}
#if CONFIG_COMP_INTERINTRA_PRED
if (x->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME) {
vp9_build_interintra_64x64_predictors_sb(x, dst_y, dst_u, dst_v,
dst_ystride, dst_uvstride);
}
#endif
}
static void build_inter4x4_predictors_mb(MACROBLOCKD *xd,
int mb_row, int mb_col) {
int i;
MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
BLOCKD *blockd = xd->block;
int which_mv = 0;
const int use_second_ref = mbmi->second_ref_frame > 0;
if (xd->mode_info_context->mbmi.partitioning != PARTITIONING_4X4) {
for (i = 0; i < 16; i += 8) {
BLOCKD *d0 = &blockd[i];
BLOCKD *d1 = &blockd[i + 2];
const int y = i & 8;
blockd[i + 0].bmi = xd->mode_info_context->bmi[i + 0];
blockd[i + 2].bmi = xd->mode_info_context->bmi[i + 2];
for (which_mv = 0; which_mv < 1 + use_second_ref; ++which_mv) {
if (mbmi->need_to_clamp_mvs) {
clamp_mv_to_umv_border(&blockd[i + 0].bmi.as_mv[which_mv].as_mv, xd);
clamp_mv_to_umv_border(&blockd[i + 2].bmi.as_mv[which_mv].as_mv, xd);
}
build_2x1_inter_predictor(d0, d1, xd->scale_factor, 8, 16,
which_mv, &xd->subpix,
mb_row * 16 + y, mb_col * 16);
}
}
} else {
for (i = 0; i < 16; i += 2) {
BLOCKD *d0 = &blockd[i];
BLOCKD *d1 = &blockd[i + 1];
const int x = (i & 3) * 4;
const int y = (i >> 2) * 4;
blockd[i + 0].bmi = xd->mode_info_context->bmi[i + 0];
blockd[i + 1].bmi = xd->mode_info_context->bmi[i + 1];
for (which_mv = 0; which_mv < 1 + use_second_ref; ++which_mv) {
build_2x1_inter_predictor(d0, d1, xd->scale_factor, 4, 16,
which_mv, &xd->subpix,
mb_row * 16 + y, mb_col * 16 + x);
}
}
}
for (i = 16; i < 24; i += 2) {
BLOCKD *d0 = &blockd[i];
BLOCKD *d1 = &blockd[i + 1];
const int x = 4 * (i & 1);
const int y = ((i - 16) >> 1) * 4;
for (which_mv = 0; which_mv < 1 + use_second_ref; ++which_mv) {
build_2x1_inter_predictor(d0, d1, xd->scale_factor_uv, 4, 8,
which_mv, &xd->subpix,
mb_row * 8 + y, mb_col * 8 + x);
}
}
}
static int mv_pred_row(MACROBLOCKD *mb, int off, int idx) {
int temp = mb->mode_info_context->bmi[off + 0].as_mv[idx].as_mv.row +
mb->mode_info_context->bmi[off + 1].as_mv[idx].as_mv.row +
mb->mode_info_context->bmi[off + 4].as_mv[idx].as_mv.row +
mb->mode_info_context->bmi[off + 5].as_mv[idx].as_mv.row;
return (temp < 0 ? temp - 4 : temp + 4) / 8;
}
static int mv_pred_col(MACROBLOCKD *mb, int off, int idx) {
int temp = mb->mode_info_context->bmi[off + 0].as_mv[idx].as_mv.col +
mb->mode_info_context->bmi[off + 1].as_mv[idx].as_mv.col +
mb->mode_info_context->bmi[off + 4].as_mv[idx].as_mv.col +
mb->mode_info_context->bmi[off + 5].as_mv[idx].as_mv.col;
return (temp < 0 ? temp - 4 : temp + 4) / 8;
}
static void build_4x4uvmvs(MACROBLOCKD *xd) {
int i, j;
BLOCKD *blockd = xd->block;
const int mask = xd->fullpixel_mask;
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
const int yoffset = i * 8 + j * 2;
const int uoffset = 16 + i * 2 + j;
const int voffset = 20 + i * 2 + j;
MV *u = &blockd[uoffset].bmi.as_mv[0].as_mv;
MV *v = &blockd[voffset].bmi.as_mv[0].as_mv;
u->row = mv_pred_row(xd, yoffset, 0) & mask;
u->col = mv_pred_col(xd, yoffset, 0) & mask;
// if (x->mode_info_context->mbmi.need_to_clamp_mvs)
clamp_uvmv_to_umv_border(u, xd);
// if (x->mode_info_context->mbmi.need_to_clamp_mvs)
clamp_uvmv_to_umv_border(u, xd);
v->row = u->row;
v->col = u->col;
if (xd->mode_info_context->mbmi.second_ref_frame > 0) {
u = &blockd[uoffset].bmi.as_mv[1].as_mv;
v = &blockd[voffset].bmi.as_mv[1].as_mv;
u->row = mv_pred_row(xd, yoffset, 1) & mask;
u->col = mv_pred_col(xd, yoffset, 1) & mask;
// if (mbmi->need_to_clamp_mvs)
clamp_uvmv_to_umv_border(u, xd);
// if (mbmi->need_to_clamp_mvs)
clamp_uvmv_to_umv_border(u, xd);
v->row = u->row;
v->col = u->col;
}
}
}
}
void vp9_build_inter16x16_predictors_mb(MACROBLOCKD *xd,
uint8_t *dst_y,
uint8_t *dst_u,
uint8_t *dst_v,
int dst_ystride,
int dst_uvstride,
int mb_row,
int mb_col) {
vp9_build_inter16x16_predictors_mby(xd, dst_y, dst_ystride, mb_row, mb_col);
vp9_build_inter16x16_predictors_mbuv(xd, dst_u, dst_v, dst_uvstride,
mb_row, mb_col);
}
void vp9_build_inter_predictors_mb(MACROBLOCKD *xd,
int mb_row,
int mb_col) {
if (xd->mode_info_context->mbmi.mode != SPLITMV) {
vp9_build_inter16x16_predictors_mb(xd, xd->predictor,
&xd->predictor[256],
&xd->predictor[320], 16, 8,
mb_row, mb_col);
#if CONFIG_COMP_INTERINTRA_PRED
if (xd->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME) {
vp9_build_interintra_16x16_predictors_mb(xd, xd->predictor,
&xd->predictor[256],
&xd->predictor[320], 16, 8);
}
#endif
} else {
build_4x4uvmvs(xd);
build_inter4x4_predictors_mb(xd, mb_row, mb_col);
}
}