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aomedia / avm / refs/heads/experimental / . / av1 / common / reconinter.c
blob: 98845bdb4b108fc882fb54d2bb7f7abe02943250 [file] [log] [blame] [edit]
/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <assert.h>
#include <stdio.h>
#include <limits.h>
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "config/aom_scale_rtcd.h"
#if CONFIG_DERIVED_MV
#include "config/av1_rtcd.h"
#endif // CONFIG_DERIVED_MV
#include "aom/aom_integer.h"
#include "aom_dsp/blend.h"
#if CONFIG_DERIVED_MV
#include "aom_dsp/variance.h"
#endif // CONFIG_DERIVED_MV
#include "av1/common/blockd.h"
#include "av1/common/mvref_common.h"
#include "av1/common/reconinter.h"
#include "av1/common/reconintra.h"
#include "av1/common/onyxc_int.h"
#include "av1/common/obmc.h"
#if CONFIG_INTERINTRA_ML
#include "av1/common/interintra_ml.h"
#endif
#define USE_PRECOMPUTED_WEDGE_MASK 1
#define USE_PRECOMPUTED_WEDGE_SIGN 1
#if CONFIG_CTX_ADAPT_LOG_WEIGHT
#define LOG_K_SIZE 1
#define LOG_WEIGHT_0 43
#define LOG_WEIGHT_1 40
#define DIFFLOG_THR 3
static const double log_k[9] = { 0.1004, -0.0234, 0.1004, -0.0234, -0.3079,
-0.0234, 0.1004, -0.0234, 0.1004 };
double kernel_correlation(const CONV_BUF_TYPE *src, int stride, int h, int w,
int cr, int cc, const double *kernel, int ws,
ConvolveParams *conv_params) {
double crr = 0;
const int ks = 2 * ws + 1;
const int bd = 8;
const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
(1 << (offset_bits - conv_params->round_1 - 1));
const int round_bits =
2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
const uint16_t max = (1 << round_bits);
const uint16_t min = round_offset;
for (int i = -ws; i <= ws; ++i) {
for (int j = -ws; j <= ws; ++j) {
int r = (cr + i < 0) ? 0 : (cr + i >= h) ? h - 1 : cr + i;
int c = (cc + j < 0) ? 0 : (cc + j >= w) ? w - 1 : cc + j;
double s = (src[r * stride + c] - min) / ((double)max);
crr += s * kernel[(i + 1) * ks + (j + 1)];
}
}
return crr;
}
double kernel_correlation_uint8(const uint8_t *src, int stride, int h, int w,
int cr, int cc, const double *kernel, int ws) {
double crr = 0;
const int ks = 2 * ws + 1;
for (int i = -ws; i <= ws; ++i) {
for (int j = -ws; j <= ws; ++j) {
int r = (cr + i < 0) ? 0 : (cr + i >= h) ? h - 1 : cr + i;
int c = (cc + j < 0) ? 0 : (cc + j >= w) ? w - 1 : cc + j;
crr += src[r * stride + c] * kernel[(i + ws) * ks + (j + ws)];
}
}
return crr;
}
double *gen_correlation(const CONV_BUF_TYPE *src, int stride, int h, int w,
const double *kernel, int ws,
ConvolveParams *conv_params) {
double *R;
R = malloc(h * w * sizeof(*R));
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
R[i * w + j] =
kernel_correlation(src, stride, h, w, i, j, kernel, ws, conv_params);
}
}
return R;
}
double *gen_correlation_uint8(const uint8_t *src, int stride, int h, int w,
const double *kernel, int ws) {
double *R;
R = malloc(h * w * sizeof(*R));
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
R[i * w + j] =
kernel_correlation_uint8(src, stride, h, w, i, j, kernel, ws);
}
}
return R;
}
#endif // CONFIG_CTX_ADAPT_LOG_WEIGHT
#if CONFIG_DIFFWTD_42
#define DIFFWTD_MASK_VAL 42
#define NORMAL_MASK DIFFWTD_42
#define INVERSE_MASK DIFFWTD_42_INV
#else
#define DIFFWTD_MASK_VAL 38
#define NORMAL_MASK DIFFWTD_38
#define INVERSE_MASK DIFFWTD_38_INV
#endif // CONFIG_DIFFWTD_42
// This function will determine whether or not to create a warped
// prediction.
int av1_allow_warp(const MB_MODE_INFO *const mbmi,
const WarpTypesAllowed *const warp_types,
const WarpedMotionParams *const gm_params,
int build_for_obmc, const struct scale_factors *const sf,
WarpedMotionParams *final_warp_params) {
// Note: As per the spec, we must test the fixed point scales here, which are
// at a higher precision (1 << 14) than the xs and ys in subpel_params (that
// have 1 << 10 precision).
if (av1_is_scaled(sf)) return 0;
if (final_warp_params != NULL) *final_warp_params = default_warp_params;
if (build_for_obmc) return 0;
if (warp_types->local_warp_allowed && !mbmi->wm_params.invalid) {
if (final_warp_params != NULL)
memcpy(final_warp_params, &mbmi->wm_params, sizeof(*final_warp_params));
return 1;
} else if (warp_types->global_warp_allowed && !gm_params->invalid) {
if (final_warp_params != NULL)
memcpy(final_warp_params, gm_params, sizeof(*final_warp_params));
return 1;
}
return 0;
}
#if CONFIG_EXT_IBC_MODES
void av1_intrabc_allocate_sb(uint16_t **InputBlock, const uint16_t width,
const uint16_t height) {
(*InputBlock) = (uint16_t *)aom_malloc(width * height * sizeof(uint16_t));
}
void av1_fetch_prediction_sb(const uint8_t *src, int src_stride,
uint16_t *InputBlock, const uint16_t width,
const uint16_t height) {
uint16_t *pixelStartAddr = CONVERT_TO_SHORTPTR(src);
uint16_t size = (width << 1);
// Populate prediction data
for (int rows = 0; rows < height; ++rows) {
memcpy(InputBlock, pixelStartAddr, size);
pixelStartAddr += src_stride;
InputBlock += width;
}
}
void av1_write_prediction_sb(const uint8_t *dst, int dst_stride,
uint16_t *InputBlock, const uint16_t width,
const uint16_t height) {
uint16_t *pixelStartAddr = CONVERT_TO_SHORTPTR(dst);
uint16_t size = (width << 1);
// Write prediction data
for (int rows = 0; rows < height; ++rows) {
memcpy(pixelStartAddr, InputBlock, size);
InputBlock += 128;
pixelStartAddr += dst_stride;
}
}
void av1_intrabc_rotate90_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
// Rotate Block by 90 degrees
for (int rows = 0; rows < height; ++rows) {
for (int cols = 0; cols < width; ++cols) {
DstBlock[cols * 128 + (height - 1 - rows)] = SrcBlock[cols];
}
SrcBlock += width;
}
}
void av1_intrabc_rotate180_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
// Rotate Block by 180 degrees
for (int rows = 0; rows < height; ++rows) {
for (int cols = 0; cols < width; ++cols) {
DstBlock[(height - 1 - rows) * 128 + (width - 1 - cols)] = SrcBlock[cols];
}
SrcBlock += width;
}
}
void av1_intrabc_rotate270_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
// Rotate Block by 270 degrees
for (int rows = 0; rows < height; ++rows) {
for (int cols = 0; cols < width; ++cols) {
DstBlock[(width - 1 - cols) * 128 + rows] = SrcBlock[cols];
}
SrcBlock += width;
}
}
void av1_intrabc_mirror0_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
uint16_t size = (width << 1);
// Mirror Block across the 0 degree axis
DstBlock += (height - 1) * 128;
for (int rows = 0; rows < height; ++rows) {
memcpy(DstBlock, SrcBlock, size);
DstBlock -= 128;
SrcBlock += width;
}
}
void av1_intrabc_mirror45_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
// Mirror Block across the 45 degree axis
for (int rows = 0; rows < height; ++rows) {
for (int cols = 0; cols < width; ++cols) {
DstBlock[(width - 1 - cols) * 128 + (height - 1 - rows)] = SrcBlock[cols];
}
SrcBlock += width;
}
}
void av1_intrabc_mirror90_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
// Mirror Block across the 90 degree axis
for (int rows = 0; rows < height; ++rows) {
for (int cols = 0; cols < width; ++cols) {
DstBlock[rows * 128 + (width - 1 - cols)] = SrcBlock[cols];
}
SrcBlock += width;
}
}
void av1_intrabc_mirror135_sb(uint16_t *DstBlock, uint16_t *SrcBlock,
const uint16_t width, const uint16_t height) {
// Mirror Block across the 135 degree axis
for (int rows = 0; rows < height; ++rows) {
for (int cols = 0; cols < width; ++cols) {
DstBlock[cols * 128 + rows] = SrcBlock[cols];
}
SrcBlock += width;
}
}
#endif // CONFIG_EXT_IBC_MODES
#if CONFIG_OPTFLOW_REFINEMENT
// Apply distance based weighted compound average
#define OPFL_DISTWTD_AVG 1
// Precision of refined MV returned, 0 being integer pel.
#define MV_REFINE_PREC_BITS 4 // (1/16-pel)
// Delta to use for computing gradients in bits, with 0 referring to
// integer-pel. The actual delta value used from the 1/8-pel original MVs
// is 2^(3 - SUBPEL_GRAD_DELTA_BITS). The max value of this macro is 3.
// TODO(debargha@, kslu@): experiment with values 0, 1, 2
#define SUBPEL_GRAD_DELTA_BITS 3
// Note: grad_prec_bits param returned correspond to the precision
// of the gradient information in bits assuming gradient
// computed at unit pixel step normalization is 0 scale.
// Negative values indicate gradient returned at reduced precision, and
// positive values indicate gradient returned at higher precision.
int av1_compute_subpel_gradients_highbd(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mi,
int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args, int ref,
uint16_t *pred_dst16, int *grad_prec_bits, int16_t *x_grad,
int16_t *y_grad) {
assert(cm->seq_params.order_hint_info.enable_order_hint);
*grad_prec_bits = INT_MAX;
uint8_t *pred_dst = CONVERT_TO_BYTEPTR(pred_dst16);
// Compute distance between the current frame and reference
const int cur_frame_index = cm->cur_frame->order_hint;
const RefCntBuffer *const ref_buf = get_ref_frame_buf(cm, mi->ref_frame[ref]);
assert(ref_buf != NULL);
const int ref_index = ref_buf->order_hint;
// Find the distance in display order between the current frame and each
// reference
const int r_dist = get_relative_dist(&cm->seq_params.order_hint_info,
cur_frame_index, ref_index);
// Do references one at a time
const int is_compound = 0;
ConvolveParams conv_params = get_conv_params_no_round(
0, plane, xd->tmp_conv_dst, MAX_SB_SIZE, is_compound, xd->bd);
av1_dist_wtd_comp_weight_assign(
cm, mi, 0, &conv_params.fwd_offset, &conv_params.bck_offset,
&conv_params.use_dist_wtd_comp_avg, is_compound);
struct macroblockd_plane *const pd = &xd->plane[plane];
struct buf_2d *const dst_buf = &pd->dst;
const int is_intrabc = is_intrabc_block(mi);
uint16_t tmp_buf1[MAX_SB_SIZE * MAX_SB_SIZE] = { 0 };
uint16_t tmp_buf2[MAX_SB_SIZE * MAX_SB_SIZE] = { 0 };
uint8_t *tmp_buf1_8 = CONVERT_TO_BYTEPTR(tmp_buf1);
uint8_t *tmp_buf2_8 = CONVERT_TO_BYTEPTR(tmp_buf2);
int is_global[2] = { 0, 0 };
const WarpedMotionParams *const wm = &xd->global_motion[mi->ref_frame[ref]];
is_global[ref] = is_global_mv_block(mi, wm->wmtype);
const WarpTypesAllowed warp_types = { is_global[ref],
mi->motion_mode == WARPED_CAUSAL };
const struct scale_factors *const sf =
is_intrabc ? &cm->sf_identity : xd->block_ref_scale_factors[ref];
WarpedMotionParams final_warp_params;
const int do_warp =
(bw >= 8 && bh >= 8 &&
av1_allow_warp(mi, &warp_types, &xd->global_motion[mi->ref_frame[ref]],
0, sf, &final_warp_params));
// TODO(sarahparker) make compatible with warped modes
if (do_warp || !r_dist) return 0;
const int ss_x = pd->subsampling_x;
const int ss_y = pd->subsampling_y;
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
int row_start = plane ? (mi->chroma_ref_info.mi_row_chroma_base - mi_row) : 0;
int col_start = plane ? (mi->chroma_ref_info.mi_col_chroma_base - mi_col) : 0;
const int pre_x = (mi_x + MI_SIZE * col_start) >> ss_x;
const int pre_y = (mi_y + MI_SIZE * row_start) >> ss_y;
struct buf_2d *const pre_buf = is_intrabc ? dst_buf : &pd->pre[ref];
const MV mv_orig = mi->mv[ref].as_mv;
MV mv_modified = mv_orig;
uint8_t *pre;
SubpelParams subpel_params;
int src_stride;
calc_subpel_params_func(
xd, sf, &mv_orig, plane, pre_x, pre_y, 0, 0, pre_buf, bw, bh, &warp_types,
ref, 0, calc_subpel_params_func_args, &pre, &subpel_params, &src_stride);
// Original predictor
assert(mi->interinter_comp.type == COMPOUND_AVERAGE);
conv_params.do_average = 0;
av1_make_inter_predictor(pre, src_stride, pred_dst, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// X gradient
// Get predictor to the left
mv_modified.col = mv_orig.col - (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
mv_modified.row = mv_orig.row;
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf1_8, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Get predictor to the right
mv_modified.col = mv_orig.col + (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
mv_modified.row = mv_orig.row;
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf2_8, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Compute difference.
// Note since the deltas are at +2^g/8 and -2^g/8 subpel locations
// (g = 3 - SUBPEL_GRAD_DELTA_BITS), the actual unit pel gradient is
// 4/2^g = 2^(2-g) times the difference. Therefore the gradient returned
// is at reduced precision by 2-g bits. That explains the grad_prec_bits
// return value of g-2 at the end of this function.
for (int i = 0; i < bh; i++) {
for (int j = 0; j < bw; j++) {
x_grad[i * bw + j] = tmp_buf2[i * bw + j] - tmp_buf1[i * bw + j];
}
}
// Y gradient
// Get predictor below
mv_modified.col = mv_orig.col;
mv_modified.row = mv_orig.row - (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf1_8, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Get predictor above
mv_modified.col = mv_orig.col;
mv_modified.row = mv_orig.row + (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf2_8, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Compute difference.
// Note since the deltas are at +2^g/8 and -2^g/8 subpel locations
// (g = 3 - SUBPEL_GRAD_DELTA_BITS), the actual unit pel gradient is
// 4/2^g = 2^(2-g) times the difference. Therefore the gradient returned
// is at reduced precision by 2-g bits. That explains the grad_prec_bits
// return value of g-2 at the end of this function.
for (int i = 0; i < bh; i++) {
for (int j = 0; j < bw; j++) {
y_grad[i * bw + j] = tmp_buf2[i * bw + j] - tmp_buf1[i * bw + j];
}
}
*grad_prec_bits = 3 - SUBPEL_GRAD_DELTA_BITS - 2;
return r_dist;
}
// Note: grad_prec_bits param returned correspond to the precision
// of the gradient information in bits assuming gradient
// computed at unit pixel step normalization is 0 scale.
// Negative values indicate gradient returned at reduced precision, and
// positive values indicate gradient returned at higher precision.
int av1_compute_subpel_gradients_lowbd(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mi,
int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args, int ref, uint8_t *pred_dst,
int *grad_prec_bits, int16_t *x_grad, int16_t *y_grad) {
assert(cm->seq_params.order_hint_info.enable_order_hint);
*grad_prec_bits = INT_MAX;
// Compute distance between the current frame and reference
const int cur_frame_index = cm->cur_frame->order_hint;
const RefCntBuffer *const ref_buf = get_ref_frame_buf(cm, mi->ref_frame[ref]);
assert(ref_buf != NULL);
const int ref_index = ref_buf->order_hint;
// Find the distance in display order between the current frame and each
// reference
const int r_dist = get_relative_dist(&cm->seq_params.order_hint_info,
cur_frame_index, ref_index);
// Do references one at a time
const int is_compound = 0;
ConvolveParams conv_params = get_conv_params_no_round(
0, plane, xd->tmp_conv_dst, MAX_SB_SIZE, is_compound, xd->bd);
av1_dist_wtd_comp_weight_assign(
cm, mi, 0, &conv_params.fwd_offset, &conv_params.bck_offset,
&conv_params.use_dist_wtd_comp_avg, is_compound);
struct macroblockd_plane *const pd = &xd->plane[plane];
struct buf_2d *const dst_buf = &pd->dst;
const int is_intrabc = is_intrabc_block(mi);
uint8_t tmp_buf1[MAX_SB_SIZE * MAX_SB_SIZE] = { 0 };
uint8_t tmp_buf2[MAX_SB_SIZE * MAX_SB_SIZE] = { 0 };
int is_global[2] = { 0, 0 };
const WarpedMotionParams *const wm = &xd->global_motion[mi->ref_frame[ref]];
is_global[ref] = is_global_mv_block(mi, wm->wmtype);
const WarpTypesAllowed warp_types = { is_global[ref],
mi->motion_mode == WARPED_CAUSAL };
const struct scale_factors *const sf =
is_intrabc ? &cm->sf_identity : xd->block_ref_scale_factors[ref];
WarpedMotionParams final_warp_params;
const int do_warp =
(bw >= 8 && bh >= 8 &&
av1_allow_warp(mi, &warp_types, &xd->global_motion[mi->ref_frame[ref]],
0, sf, &final_warp_params));
// TODO(sarahparker) make compatible with warped modes
if (do_warp || !r_dist) return 0;
const int ss_x = pd->subsampling_x;
const int ss_y = pd->subsampling_y;
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
int row_start = plane ? (mi->chroma_ref_info.mi_row_chroma_base - mi_row) : 0;
int col_start = plane ? (mi->chroma_ref_info.mi_col_chroma_base - mi_col) : 0;
const int pre_x = (mi_x + MI_SIZE * col_start) >> ss_x;
const int pre_y = (mi_y + MI_SIZE * row_start) >> ss_y;
struct buf_2d *const pre_buf = is_intrabc ? dst_buf : &pd->pre[ref];
const MV mv_orig = mi->mv[ref].as_mv;
MV mv_modified = mv_orig;
uint8_t *pre;
SubpelParams subpel_params;
int src_stride;
calc_subpel_params_func(
xd, sf, &mv_orig, plane, pre_x, pre_y, 0, 0, pre_buf, bw, bh, &warp_types,
ref, 0, calc_subpel_params_func_args, &pre, &subpel_params, &src_stride);
// Original predictor
assert(mi->interinter_comp.type == COMPOUND_AVERAGE);
conv_params.do_average = 0;
av1_make_inter_predictor(pre, src_stride, pred_dst, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// X gradient
// Get predictor to the left
mv_modified.col = mv_orig.col - (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
mv_modified.row = mv_orig.row;
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf1, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Get predictor to the right
mv_modified.col = mv_orig.col + (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
mv_modified.row = mv_orig.row;
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf2, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Compute difference.
// Note since the deltas are at +2^g/8 and -2^g/8 subpel locations
// (g = 3 - SUBPEL_GRAD_DELTA_BITS), the actual unit pel gradient is
// 4/2^g = 2^(2-g) times the difference. Therefore the gradient returned
// is at reduced precision by 2-g bits. That explains the grad_prec_bits
// return value of g-2 at the end of this function.
for (int i = 0; i < bh; i++) {
for (int j = 0; j < bw; j++) {
x_grad[i * bw + j] =
(int16_t)tmp_buf2[i * bw + j] - (int16_t)tmp_buf1[i * bw + j];
}
}
// Y gradient
// Get predictor below
mv_modified.col = mv_orig.col;
mv_modified.row = mv_orig.row - (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf1, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Get predictor above
mv_modified.col = mv_orig.col;
mv_modified.row = mv_orig.row + (1 << (3 - SUBPEL_GRAD_DELTA_BITS));
calc_subpel_params_func(xd, sf, &mv_modified, plane, pre_x, pre_y, 0, 0,
pre_buf, bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre, &subpel_params,
&src_stride);
av1_make_inter_predictor(pre, src_stride, tmp_buf2, bw, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters,
&warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, 0, xd,
cm->allow_warped_motion, 0 /* border */);
// Compute difference.
// Note since the deltas are at +2^g/8 and -2^g/8 subpel locations
// (g = 3 - SUBPEL_GRAD_DELTA_BITS), the actual unit pel gradient is
// 4/2^g = 2^(2-g) times the difference. Therefore the gradient returned
// is at reduced precision by 2-g bits. That explains the grad_prec_bits
// return value of g-2 at the end of this function.
for (int i = 0; i < bh; i++) {
for (int j = 0; j < bw; j++) {
y_grad[i * bw + j] =
(int16_t)tmp_buf2[i * bw + j] - (int16_t)tmp_buf1[i * bw + j];
}
}
*grad_prec_bits = 3 - SUBPEL_GRAD_DELTA_BITS - 2;
return r_dist;
}
// Optical flow based mv refinement computation function:
//
// p0, pstride0: predictor 0 and its stride
// p1, pstride1: predictor 1 and its stride
// gx0, gy0: x and y gradients for p0
// gx1, gy1: x and y gradients for p1
// gstride: stride for all the gradients assumed to be the same
// bw, bh: block dumensions
// d0: distance of p0 to current frame, where +ve value refers to
// p0 before the current frame.
// d1: distance of p1 to current frame, where +ve value refers to
// p1 after the current frame.
// max_prec_bits: maximum offset in bits
// vx0, vy0: output high resolution mv offset for p0
// vx1, vy1: output high resolution mv offset for p1
void av1_opfl_mv_refinement_lowbd(const uint8_t *p0, int pstride0,
const uint8_t *p1, int pstride1,
const int16_t *gx0, const int16_t *gy0,
const int16_t *gx1, const int16_t *gy1,
int gstride, int bw, int bh, int d0, int d1,
int grad_prec_bits, int mv_prec_bits,
int *vx0, int *vy0, int *vx1, int *vy1) {
int64_t su2 = 0;
int64_t suv = 0;
int64_t sv2 = 0;
int64_t suw = 0;
int64_t svw = 0;
for (int i = 0; i < bh; ++i) {
for (int j = 0; j < bw; ++j) {
const int u = d0 * gx0[i * gstride + j] - d1 * gx1[i * gstride + j];
const int v = d0 * gy0[i * gstride + j] - d1 * gy1[i * gstride + j];
const int w = d0 * (p0[i * pstride0 + j] - p1[i * pstride1 + j]);
su2 += (u * u);
suv += (u * v);
sv2 += (v * v);
suw += (u * w);
svw += (v * w);
}
}
int bits = mv_prec_bits + grad_prec_bits;
const int64_t D = su2 * sv2 - suv * suv;
const int64_t Px = (suv * svw - sv2 * suw) * (1 << bits);
const int64_t Py = (suv * suw - su2 * svw) * (1 << bits);
if (D == 0) return;
*vx0 = (int)DIVIDE_AND_ROUND_SIGNED(Px, D);
*vy0 = (int)DIVIDE_AND_ROUND_SIGNED(Py, D);
const int tx1 = (*vx0) * d1;
const int ty1 = (*vy0) * d1;
*vx1 = (int)DIVIDE_AND_ROUND_SIGNED(tx1, d0);
*vy1 = (int)DIVIDE_AND_ROUND_SIGNED(ty1, d0);
}
void av1_opfl_mv_refinement_highbd(const uint16_t *p0, int pstride0,
const uint16_t *p1, int pstride1,
const int16_t *gx0, const int16_t *gy0,
const int16_t *gx1, const int16_t *gy1,
int gstride, int bw, int bh, int d0, int d1,
int grad_prec_bits, int mv_prec_bits,
int *vx0, int *vy0, int *vx1, int *vy1) {
int64_t su2 = 0;
int64_t suv = 0;
int64_t sv2 = 0;
int64_t suw = 0;
int64_t svw = 0;
for (int i = 0; i < bh; ++i) {
for (int j = 0; j < bw; ++j) {
const int u = d0 * gx0[i * gstride + j] - d1 * gx1[i * gstride + j];
const int v = d0 * gy0[i * gstride + j] - d1 * gy1[i * gstride + j];
const int w = d0 * (p0[i * pstride0 + j] - p1[i * pstride1 + j]);
su2 += (u * u);
suv += (u * v);
sv2 += (v * v);
suw += (u * w);
svw += (v * w);
}
}
int bits = mv_prec_bits + grad_prec_bits;
const int64_t D = su2 * sv2 - suv * suv;
const int64_t Px = (suv * svw - sv2 * suw) * (1 << bits);
const int64_t Py = (suv * suw - su2 * svw) * (1 << bits);
if (D == 0) return;
*vx0 = (int)DIVIDE_AND_ROUND_SIGNED(Px, D);
*vy0 = (int)DIVIDE_AND_ROUND_SIGNED(Py, D);
const int tx1 = (*vx0) * d1;
const int ty1 = (*vy0) * d1;
*vx1 = (int)DIVIDE_AND_ROUND_SIGNED(tx1, d0);
*vy1 = (int)DIVIDE_AND_ROUND_SIGNED(ty1, d0);
}
void getsub_4D(int64_t *sub, int64_t *mat, int64_t *vec) {
*(sub++) = *(mat) * *(mat + 5) - *(mat + 1) * *(mat + 4);
*(sub++) = *(mat) * *(mat + 6) - *(mat + 2) * *(mat + 4);
*(sub++) = *(mat) * *(mat + 7) - *(mat + 3) * *(mat + 4);
*(sub++) = *(mat) * *(vec + 1) - *(vec) * *(mat + 4);
*(sub++) = *(mat + 1) * *(mat + 6) - *(mat + 2) * *(mat + 5);
*(sub++) = *(mat + 1) * *(mat + 7) - *(mat + 3) * *(mat + 5);
*(sub++) = *(mat + 1) * *(vec + 1) - *(vec) * *(mat + 5);
*(sub++) = *(mat + 2) * *(mat + 7) - *(mat + 3) * *(mat + 6);
*(sub++) = *(mat + 2) * *(vec + 1) - *(vec) * *(mat + 6);
*(sub) = *(mat + 3) * *(vec + 1) - *(vec) * *(mat + 7);
}
int solver_4D(int64_t *mat, int64_t *vec, int precbits, int64_t *sol) {
int64_t a[10], b[10]; // values of 20 specific 2D subdeterminants
getsub_4D(&a[0], mat, vec);
getsub_4D(&b[0], mat + 8, vec + 2);
int64_t D = (a[0] * b[7] + a[7] * b[0] + a[2] * b[4] + a[4] * b[2] -
a[5] * b[1] - a[1] * b[5]);
if (D == 0) return 0;
sol[0] = (a[5] * b[8] + a[8] * b[5] - a[6] * b[7] - a[7] * b[6] -
a[4] * b[9] - a[9] * b[4])
<< precbits;
sol[1] = (a[1] * b[9] + a[9] * b[1] + a[3] * b[7] + a[7] * b[3] -
a[2] * b[8] - a[8] * b[2])
<< precbits;
sol[2] = (a[2] * b[6] + a[6] * b[2] - a[0] * b[9] - a[9] * b[0] -
a[3] * b[5] - a[5] * b[3])
<< precbits;
sol[3] = (a[0] * b[8] + a[8] * b[0] + a[3] * b[4] + a[4] * b[3] -
a[6] * b[1] - a[1] * b[6])
<< precbits;
sol[0] = DIVIDE_AND_ROUND_SIGNED(sol[0], D);
sol[1] = DIVIDE_AND_ROUND_SIGNED(sol[1], D);
sol[2] = DIVIDE_AND_ROUND_SIGNED(sol[2], D);
sol[3] = DIVIDE_AND_ROUND_SIGNED(sol[3], D);
return 1;
}
void av1_opfl_mv_refinement4_lowbd(const uint8_t *p0, int pstride0,
const uint8_t *p1, int pstride1,
const int16_t *gx0, const int16_t *gy0,
const int16_t *gx1, const int16_t *gy1,
int gstride, int bw, int bh, int d0, int d1,
int grad_prec_bits, int mv_prec_bits,
int *vx0, int *vy0, int *vx1, int *vy1) {
int64_t A[4 * 4] = { 0 };
int64_t B[4] = { 0 };
int64_t X[4];
for (int i = 0; i < bh; ++i) {
for (int j = 0; j < bw; ++j) {
int a[4];
a[0] = d0 * gx0[i * gstride + j];
a[1] = d0 * gy0[i * gstride + j];
a[2] = (-d1) * gx1[i * gstride + j];
a[3] = (-d1) * gy1[i * gstride + j];
const int d = p1[i * pstride1 + j] - p0[i * pstride0 + j];
for (int s = 0; s < 4; ++s) {
for (int t = 0; t <= s; ++t) A[s * 4 + t] += (a[s] * a[t]);
B[s] += (a[s] * d);
}
}
}
for (int s = 0; s < 4; ++s) {
for (int t = s + 1; t < 4; ++t) A[s * 4 + t] = A[t * 4 + s];
}
int bits = mv_prec_bits + grad_prec_bits;
if (!solver_4D(A, B, bits, X)) return;
*vx0 = d0 * (int)X[0];
*vy0 = d0 * (int)X[1];
*vx1 = d1 * (int)X[2];
*vy1 = d1 * (int)X[3];
}
void av1_opfl_mv_refinement4_highbd(const uint16_t *p0, int pstride0,
const uint16_t *p1, int pstride1,
const int16_t *gx0, const int16_t *gy0,
const int16_t *gx1, const int16_t *gy1,
int gstride, int bw, int bh, int d0, int d1,
int grad_prec_bits, int mv_prec_bits,
int *vx0, int *vy0, int *vx1, int *vy1) {
int64_t A[4 * 4] = { 0 };
int64_t B[4] = { 0 };
int64_t X[4];
for (int i = 0; i < bh; ++i) {
for (int j = 0; j < bw; ++j) {
int a[4];
a[0] = d0 * gx0[i * gstride + j];
a[1] = d0 * gy0[i * gstride + j];
a[2] = (-d1) * gx1[i * gstride + j];
a[3] = (-d1) * gy1[i * gstride + j];
const int d = p1[i * pstride1 + j] - p0[i * pstride0 + j];
for (int s = 0; s < 4; ++s) {
for (int t = 0; t <= s; ++t) A[s * 4 + t] += (a[s] * a[t]);
B[s] += (a[s] * d);
}
}
}
for (int s = 0; s < 4; ++s) {
for (int t = s + 1; t < 4; ++t) A[s * 4 + t] = A[t * 4 + s];
}
int bits = mv_prec_bits + grad_prec_bits;
if (!solver_4D(A, B, bits, X)) return;
*vx0 = d0 * (int)X[0];
*vy0 = d0 * (int)X[1];
*vx1 = d1 * (int)X[2];
*vy1 = d1 * (int)X[3];
}
#if USE_OF_NXN
// Function to compute optical flow offsets in nxn blocks
int opfl_mv_refinement_nxn_highbd(const uint16_t *p0, int pstride0,
const uint16_t *p1, int pstride1,
const int16_t *gx0, const int16_t *gy0,
const int16_t *gx1, const int16_t *gy1,
int gstride, int bw, int bh, int n, int d0,
int d1, int grad_prec_bits, int mv_prec_bits,
int *vx0, int *vy0, int *vx1, int *vy1) {
assert(bw % n == 0 && bh % n == 0);
int n_blocks = 0;
for (int i = 0; i < bh; i += n) {
for (int j = 0; j < bw; j += n) {
av1_opfl_mv_refinement_highbd(
p0 + (i * pstride0 + j), pstride0, p1 + (i * pstride1 + j), pstride1,
gx0 + (i * gstride + j), gy0 + (i * gstride + j),
gx1 + (i * gstride + j), gy1 + (i * gstride + j), gstride, n, n, d0,
d1, grad_prec_bits, mv_prec_bits, vx0 + n_blocks, vy0 + n_blocks,
vx1 + n_blocks, vy1 + n_blocks);
n_blocks++;
}
}
return n_blocks;
}
// Function to compute optical flow offsets in nxn blocks
int opfl_mv_refinement_nxn_lowbd(const uint8_t *p0, int pstride0,
const uint8_t *p1, int pstride1,
const int16_t *gx0, const int16_t *gy0,
const int16_t *gx1, const int16_t *gy1,
int gstride, int bw, int bh, int n, int d0,
int d1, int grad_prec_bits, int mv_prec_bits,
int *vx0, int *vy0, int *vx1, int *vy1) {
assert(bw % n == 0 && bh % n == 0);
int n_blocks = 0;
for (int i = 0; i < bh; i += n) {
for (int j = 0; j < bw; j += n) {
av1_opfl_mv_refinement_lowbd(
p0 + (i * pstride0 + j), pstride0, p1 + (i * pstride1 + j), pstride1,
gx0 + (i * gstride + j), gy0 + (i * gstride + j),
gx1 + (i * gstride + j), gy1 + (i * gstride + j), gstride, n, n, d0,
d1, grad_prec_bits, mv_prec_bits, vx0 + n_blocks, vy0 + n_blocks,
vx1 + n_blocks, vy1 + n_blocks);
n_blocks++;
}
}
return n_blocks;
}
#endif // USE_OF_NXN
static int get_optflow_based_mv_highbd(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mbmi,
int_mv *mv_refined, int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args) {
// Arrays to hold optical flow offsets. If the experiment USE_OF_NXN is
// off, these will only be length 1
int vx0[N_OF_OFFSETS] = { 0 };
int vx1[N_OF_OFFSETS] = { 0 };
int vy0[N_OF_OFFSETS] = { 0 };
int vy1[N_OF_OFFSETS] = { 0 };
const int target_prec = MV_REFINE_PREC_BITS;
// Convert output MV to 1/16th pel
for (int mvi = 0; mvi < N_OF_OFFSETS; mvi++) {
mv_refined[mvi * 2].as_mv.row *= 2;
mv_refined[mvi * 2].as_mv.col *= 2;
mv_refined[mvi * 2 + 1].as_mv.row *= 2;
mv_refined[mvi * 2 + 1].as_mv.col *= 2;
}
// Allocate gradient and prediction buffers
int16_t *g0 = aom_malloc(2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g0));
memset(g0, 0, 2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g0));
uint16_t *dst0 = aom_malloc(MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst0));
memset(dst0, 0, MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst0));
int16_t *g1 = aom_malloc(2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g1));
memset(g1, 0, 2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g1));
uint16_t *dst1 = aom_malloc(MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst1));
memset(dst1, 0, MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst1));
int16_t *gx0 = g0;
int16_t *gy0 = g0 + (MAX_SB_SIZE * MAX_SB_SIZE);
int16_t *gx1 = g1;
int16_t *gy1 = g1 + (MAX_SB_SIZE * MAX_SB_SIZE);
int n_blocks = 1;
int grad_prec_bits;
// Compute gradients and predictor for P0
int d0 = av1_compute_subpel_gradients_highbd(
cm, xd, plane, mbmi, bw, bh, mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args, 0, dst0, &grad_prec_bits, gx0, gy0);
if (d0 == 0) goto exit_refinement;
// Compute gradients and predictor for P1
int d1 = av1_compute_subpel_gradients_highbd(
cm, xd, plane, mbmi, bw, bh, mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args, 1, dst1, &grad_prec_bits, gx1, gy1);
if (d1 == 0) goto exit_refinement;
#if USE_OF_NXN
int n = (bh <= 16 && bw <= 16) ? OF_MIN_BSIZE : OF_BSIZE;
n_blocks = opfl_mv_refinement_nxn_highbd(
dst0, bw, dst1, bw, gx0, gy0, gx1, gy1, bw, bw, bh, n, d0, d1,
grad_prec_bits, target_prec, vx0, vy0, vx1, vy1);
#else
av1_opfl_mv_refinement_highbd(dst0, bw, dst1, bw, gx0, gy0, gx1, gy1, bw, bw,
bh, d0, d1, grad_prec_bits, target_prec, vx0,
vy0, vx1, vy1);
#endif
for (int i = 0; i < n_blocks; i++) {
mv_refined[i * 2].as_mv.row += vy0[i];
mv_refined[i * 2].as_mv.col += vx0[i];
mv_refined[i * 2 + 1].as_mv.row += vy1[i];
mv_refined[i * 2 + 1].as_mv.col += vx1[i];
}
exit_refinement:
aom_free(g0);
aom_free(dst0);
aom_free(g1);
aom_free(dst1);
return target_prec;
}
static int get_optflow_based_mv_lowbd(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mbmi,
int_mv *mv_refined, int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args) {
// Arrays to hold optical flow offsets. If the experiment USE_OF_NXN is
// off, these will only be length 1
int vx0[N_OF_OFFSETS] = { 0 };
int vx1[N_OF_OFFSETS] = { 0 };
int vy0[N_OF_OFFSETS] = { 0 };
int vy1[N_OF_OFFSETS] = { 0 };
const int target_prec = MV_REFINE_PREC_BITS;
// Convert output MV to 1/16th pel
for (int mvi = 0; mvi < N_OF_OFFSETS; mvi++) {
mv_refined[mvi * 2].as_mv.row *= 2;
mv_refined[mvi * 2].as_mv.col *= 2;
mv_refined[mvi * 2 + 1].as_mv.row *= 2;
mv_refined[mvi * 2 + 1].as_mv.col *= 2;
}
// Allocate gradient and prediction buffers
int16_t *g0 = aom_malloc(2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g0));
memset(g0, 0, 2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g0));
uint8_t *dst0 = aom_malloc(MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst0));
memset(dst0, 0, MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst0));
int16_t *g1 = aom_malloc(2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g1));
memset(g1, 0, 2 * MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*g1));
uint8_t *dst1 = aom_malloc(MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst1));
memset(dst1, 0, MAX_SB_SIZE * MAX_SB_SIZE * sizeof(*dst1));
int16_t *gx0 = g0;
int16_t *gy0 = g0 + (MAX_SB_SIZE * MAX_SB_SIZE);
int16_t *gx1 = g1;
int16_t *gy1 = g1 + (MAX_SB_SIZE * MAX_SB_SIZE);
int n_blocks = 1;
int grad_prec_bits;
// Compute gradients and predictor for P0
int d0 = av1_compute_subpel_gradients_lowbd(
cm, xd, plane, mbmi, bw, bh, mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args, 0, dst0, &grad_prec_bits, gx0, gy0);
if (d0 == 0) goto exit_refinement;
// Compute gradients and predictor for P1
int d1 = av1_compute_subpel_gradients_lowbd(
cm, xd, plane, mbmi, bw, bh, mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args, 1, dst1, &grad_prec_bits, gx1, gy1);
if (d1 == 0) goto exit_refinement;
#if USE_OF_NXN
int n = (bh <= 16 && bw <= 16) ? OF_MIN_BSIZE : OF_BSIZE;
n_blocks = opfl_mv_refinement_nxn_lowbd(
dst0, bw, dst1, bw, gx0, gy0, gx1, gy1, bw, bw, bh, n, d0, d1,
grad_prec_bits, target_prec, vx0, vy0, vx1, vy1);
#else
av1_opfl_mv_refinement_lowbd(dst0, bw, dst1, bw, gx0, gy0, gx1, gy1, bw, bw,
bh, d0, d1, grad_prec_bits, target_prec, vx0,
vy0, vx1, vy1);
#endif
for (int i = 0; i < n_blocks; i++) {
mv_refined[i * 2].as_mv.row += vy0[i];
mv_refined[i * 2].as_mv.col += vx0[i];
mv_refined[i * 2 + 1].as_mv.row += vy1[i];
mv_refined[i * 2 + 1].as_mv.col += vx1[i];
}
exit_refinement:
aom_free(g0);
aom_free(dst0);
aom_free(g1);
aom_free(dst1);
return target_prec;
}
// Refine MV using optical flow. The final output MV will be in 1/16
// precision.
int av1_get_optflow_based_mv(const AV1_COMMON *cm, MACROBLOCKD *xd, int plane,
const MB_MODE_INFO *mbmi, int_mv *mv_refined,
int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args) {
if (is_cur_buf_hbd(xd))
return get_optflow_based_mv_highbd(cm, xd, plane, mbmi, mv_refined, bw, bh,
mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args);
return get_optflow_based_mv_lowbd(cm, xd, plane, mbmi, mv_refined, bw, bh,
mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args);
}
#endif // CONFIG_OPTFLOW_REFINEMENT
static void av1_make_inter_predictor_aux(
const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride,
const SubpelParams *subpel_params, const struct scale_factors *sf, int w,
int h, int orig_w, int orig_h, ConvolveParams *conv_params,
int_interpfilters interp_filters, const WarpTypesAllowed *warp_types,
int p_col, int p_row, int plane, int ref, const MB_MODE_INFO *mi,
int build_for_obmc, const MACROBLOCKD *xd, int can_use_previous);
#if CONFIG_OPTFLOW_REFINEMENT && USE_OF_NXN
// Makes the interpredictor for the region by dividing it up into nxn blocks
// and running the interpredictor code on each one.
void make_inter_pred_of_nxn(
uint8_t *dst, int dst_stride, SubpelParams *subpel_params,
const struct scale_factors *sf, int w, int h, ConvolveParams *conv_params,
int_interpfilters interp_filters, const WarpTypesAllowed *warp_types,
int p_col, int p_row, int plane, int ref, MB_MODE_INFO *mi, MACROBLOCKD *xd,
int can_use_previous, int n, int_mv *mv_refined, int pre_x, int pre_y,
struct buf_2d *const pre_buf, CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args) {
int n_blocks = 0;
CONV_BUF_TYPE *orig_conv_dst = conv_params->dst;
assert(w % n == 0);
assert(h % n == 0);
uint8_t *pre;
int src_stride = 0;
// Process whole nxn blocks.
for (int j = 0; j <= h - n; j += n) {
for (int i = 0; i <= w - n; i += n) {
calc_subpel_params_func(xd, sf, &(mv_refined[n_blocks * 2 + ref].as_mv),
plane, pre_x, pre_y, i, j, pre_buf, n, n,
warp_types, ref, 1, calc_subpel_params_func_args,
&pre, subpel_params, &src_stride);
av1_make_inter_predictor_aux(pre, src_stride, dst, dst_stride,
subpel_params, sf, n, n, w, h, conv_params,
interp_filters, warp_types, p_col, p_row,
plane, ref, mi, 0, xd, can_use_previous);
n_blocks++;
dst += n;
conv_params->dst += n;
p_col += n;
}
dst -= w;
conv_params->dst -= w;
p_col -= w;
dst += n * dst_stride;
conv_params->dst += n * conv_params->dst_stride;
p_row += n;
}
conv_params->dst = orig_conv_dst;
}
#endif // CONFIG_OPTFLOW_REFINEMENT && USE_OF_NXN
// Makes the interpredictor for the region by dividing it up into 8x8 blocks
// and running the interpredictor code on each one.
void make_inter_pred_8x8(const uint8_t *src, int src_stride, uint8_t *dst,
int dst_stride, const SubpelParams *subpel_params,
const struct scale_factors *sf, int w, int h,
int orig_w, int orig_h, ConvolveParams *conv_params,
int_interpfilters interp_filters,
const WarpTypesAllowed *warp_types, int p_col,
int p_row, int plane, int ref, const MB_MODE_INFO *mi,
int build_for_obmc, const MACROBLOCKD *xd,
int can_use_previous) {
CONV_BUF_TYPE *orig_conv_dst = conv_params->dst;
assert(w % 2 == 0);
assert(h % 2 == 0);
assert(IMPLIES(w % 8 != 0, orig_w < 8));
assert(IMPLIES(h % 8 != 0, orig_h < 8));
// Process whole 8x8 blocks. If width / height are not multiples of 8,
// a smaller transform is used for the remaining area.
for (int j = 0; j <= h - 8; j += 8) {
for (int i = 0; i <= w - 8; i += 8) {
av1_make_inter_predictor_aux(
src, src_stride, dst, dst_stride, subpel_params, sf, 8, 8, orig_w,
orig_h, conv_params, interp_filters, warp_types, p_col, p_row, plane,
ref, mi, build_for_obmc, xd, can_use_previous);
src += 8;
dst += 8;
conv_params->dst += 8;
p_col += 8;
}
if (w % 8 != 0) {
int offset = w % 8;
av1_make_inter_predictor_aux(
src, src_stride, dst, dst_stride, subpel_params, sf, offset, 8,
orig_w, orig_h, conv_params, interp_filters, warp_types, p_col, p_row,
plane, ref, mi, build_for_obmc, xd, can_use_previous);
src += offset;
dst += offset;
conv_params->dst += offset;
p_col += offset;
}
src -= w;
dst -= w;
conv_params->dst -= w;
p_col -= w;
src += 8 * src_stride;
dst += 8 * dst_stride;
conv_params->dst += 8 * conv_params->dst_stride;
p_row += 8;
}
if (h % 8 == 0) {
conv_params->dst = orig_conv_dst;
return;
}
// There may be a small region left along the bottom. Compute using
// smaller blocks.
int h_offset = h % 8;
for (int i = 0; i <= w - 8; i += 8) {
av1_make_inter_predictor_aux(
src, src_stride, dst, dst_stride, subpel_params, sf, 8, h_offset,
orig_w, orig_h, conv_params, interp_filters, warp_types, p_col, p_row,
plane, ref, mi, build_for_obmc, xd, can_use_previous);
src += 8;
dst += 8;
conv_params->dst += 8;
p_col += 8;
}
if (w % 8 != 0) {
av1_make_inter_predictor_aux(
src, src_stride, dst, dst_stride, subpel_params, sf, h_offset, w % 8,
orig_w, orig_h, conv_params, interp_filters, warp_types, p_col, p_row,
plane, ref, mi, build_for_obmc, xd, can_use_previous);
}
conv_params->dst = orig_conv_dst;
}
void av1_make_inter_predictor(
const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride,
const SubpelParams *subpel_params, const struct scale_factors *sf, int w,
int h, ConvolveParams *conv_params, int_interpfilters interp_filters,
const WarpTypesAllowed *warp_types, int p_col, int p_row, int plane,
int ref, const MB_MODE_INFO *mi, int build_for_obmc, const MACROBLOCKD *xd,
int can_use_previous, const int border) {
CONV_BUF_TYPE *orig_conv_dst = conv_params->dst;
src -= (src_stride * border + border);
dst -= (dst_stride * border + border);
p_row -= border;
p_col -= border;
// Build the top row of the extension in 8x8 blocks.
make_inter_pred_8x8(src, src_stride, dst, dst_stride, subpel_params, sf,
border + w, border, w, h, conv_params, interp_filters,
warp_types, p_col, p_row, plane, ref, mi, build_for_obmc,
xd, can_use_previous);
src += src_stride * border;
dst += dst_stride * border;
p_row += border;
conv_params->dst += conv_params->dst_stride * border;
// Build the left edge (not including corners).
make_inter_pred_8x8(src, src_stride, dst, dst_stride, subpel_params, sf,
border, h, w, h, conv_params, interp_filters, warp_types,
p_col, p_row, plane, ref, mi, build_for_obmc, xd,
can_use_previous);
src += border;
dst += border;
p_col += border;
conv_params->dst += border;
// Build the original inter-predicator.
av1_make_inter_predictor_aux(src, src_stride, dst, dst_stride, subpel_params,
sf, w, h, w, h, conv_params, interp_filters,
warp_types, p_col, p_row, plane, ref, mi,
build_for_obmc, xd, can_use_previous);
conv_params->dst = orig_conv_dst;
}
static void av1_make_inter_predictor_aux(
const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride,
const SubpelParams *subpel_params, const struct scale_factors *sf, int w,
// orig_w and orig_h refer to the width and height of the predictor
// without the extended region.
int h, int orig_w, int orig_h, ConvolveParams *conv_params,
int_interpfilters interp_filters, const WarpTypesAllowed *warp_types,
int p_col, int p_row, int plane, int ref, const MB_MODE_INFO *mi,
int build_for_obmc, const MACROBLOCKD *xd, int can_use_previous) {
// Make sure the selected motion mode is valid for this configuration
assert_motion_mode_valid(mi->motion_mode, xd->global_motion, xd, mi,
can_use_previous);
assert(IMPLIES(conv_params->is_compound, conv_params->dst != NULL));
WarpedMotionParams final_warp_params;
const int do_warp =
#if CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
orig_w >= 4 && orig_h >= 4
#else
orig_w >= 8 && orig_h >= 8
#endif // CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
&& av1_allow_warp(mi, warp_types, &xd->global_motion[mi->ref_frame[ref]],
build_for_obmc, sf, &final_warp_params);
const int is_intrabc = mi->use_intrabc;
assert(IMPLIES(is_intrabc, !do_warp));
if (do_warp && xd->cur_frame_force_integer_mv == 0) {
const struct macroblockd_plane *const pd = &xd->plane[plane];
const struct buf_2d *const pre_buf = &pd->pre[ref];
av1_warp_plane(&final_warp_params, is_cur_buf_hbd(xd), xd->bd,
pre_buf->buf0, pre_buf->width, pre_buf->height,
pre_buf->stride, dst, p_col, p_row, w, h, dst_stride,
pd->subsampling_x, pd->subsampling_y,
#if CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
(orig_w < 8 || orig_h < 8),
#endif // CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
conv_params);
} else if (is_cur_buf_hbd(xd)) {
highbd_inter_predictor(src, src_stride, dst, dst_stride, subpel_params, w,
h, orig_w, orig_h, conv_params, interp_filters,
is_intrabc, xd->bd);
} else {
inter_predictor(src, src_stride, dst, dst_stride, subpel_params, w, h,
orig_w, orig_h, conv_params, interp_filters, is_intrabc);
}
}
static void build_inter_predictors_sub8x8(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mi,
int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args, uint8_t *orig_dst,
int orig_dst_stride) {
const BLOCK_SIZE bsize = mi->sb_type;
struct macroblockd_plane *const pd = &xd->plane[plane];
const bool ss_x = pd->subsampling_x;
const bool ss_y = pd->subsampling_y;
// block size
const int b4_w = block_size_wide[bsize] >> ss_x;
const int b4_h = block_size_high[bsize] >> ss_y;
const BLOCK_SIZE plane_bsize = plane ? mi->chroma_ref_info.bsize_base : bsize;
const int b8_w = block_size_wide[plane_bsize] >> ss_x;
const int b8_h = block_size_high[plane_bsize] >> ss_y;
assert(!is_intrabc_block(mi));
// For sub8x8 chroma blocks, we may be covering more than one luma block's
// worth of pixels. Thus (mi_x, mi_y) may not be the correct coordinates
// for the top-left corner of the prediction source - the correct top-left
// corner is at (pre_x, pre_y).
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
const int row_start =
plane ? mi->chroma_ref_info.mi_row_chroma_base - mi_row : 0;
const int col_start =
plane ? mi->chroma_ref_info.mi_col_chroma_base - mi_col : 0;
const int pre_x = (mi_x + MI_SIZE * col_start) >> ss_x;
const int pre_y = (mi_y + MI_SIZE * row_start) >> ss_y;
const struct buf_2d orig_pred_buf[2] = { pd->pre[0], pd->pre[1] };
const WarpedMotionParams *const wm = &xd->global_motion[mi->ref_frame[0]];
bool is_global = is_global_mv_block(mi, wm->wmtype);
int row = row_start;
for (int y = 0; y < b8_h; y += b4_h) {
int col = col_start;
for (int x = 0; x < b8_w; x += b4_w) {
MB_MODE_INFO *this_mbmi = xd->mi[row * xd->mi_stride + col];
#if CONFIG_EXT_RECUR_PARTITIONS
// TODO(yuec): enabling compound prediction in none sub8x8 mbs in the
// group
bool is_compound = 0;
#else
bool is_compound = has_second_ref(this_mbmi);
#endif // CONFIG_EXT_RECUR_PARTITIONS
const int tmp_dst_stride = 8;
#if !CONFIG_EXT_RECUR_PARTITIONS
assert(bw < 8 || bh < 8);
#endif // !CONFIG_EXT_RECUR_PARTITIONS
ConvolveParams conv_params = get_conv_params_no_round(
0, plane, xd->tmp_conv_dst, tmp_dst_stride, is_compound, xd->bd);
conv_params.use_dist_wtd_comp_avg = 0;
uint8_t *dst = orig_dst + orig_dst_stride * y + x;
const RefCntBuffer *ref_buf =
get_ref_frame_buf(cm, this_mbmi->ref_frame[0]);
const struct scale_factors *ref_scale_factors =
get_ref_scale_factors_const(cm, this_mbmi->ref_frame[0]);
pd->pre[0].buf0 =
(plane == 1) ? ref_buf->buf.u_buffer : ref_buf->buf.v_buffer;
pd->pre[0].buf =
pd->pre[0].buf0 + scaled_buffer_offset(pre_x, pre_y,
ref_buf->buf.uv_stride,
ref_scale_factors);
pd->pre[0].width = ref_buf->buf.uv_crop_width;
pd->pre[0].height = ref_buf->buf.uv_crop_height;
pd->pre[0].stride = ref_buf->buf.uv_stride;
const struct scale_factors *const sf = ref_scale_factors;
struct buf_2d *const pre_buf = &pd->pre[0];
#if CONFIG_DERIVED_MV
const MV mv = (this_mbmi->derived_mv_allowed && this_mbmi->use_derived_mv)
? this_mbmi->derived_mv[0]
: this_mbmi->mv[0].as_mv;
#else
const MV mv = this_mbmi->mv[0].as_mv;
#endif // CONFIG_DERIVED_MV
const WarpTypesAllowed warp_types = { is_global, this_mbmi->motion_mode ==
WARPED_CAUSAL };
uint8_t *pre;
SubpelParams subpel_params;
int src_stride;
calc_subpel_params_func(xd, sf, &mv, plane, pre_x, pre_y, x, y, pre_buf,
bw, bh, &warp_types, 0 /* ref */,
#if CONFIG_OPTFLOW_REFINEMENT
0,
#endif // CONFIG_OPTFLOW_REFINEMENT
calc_subpel_params_func_args, &pre,
&subpel_params, &src_stride);
conv_params.do_average = 0;
// Border computation does not currnetly work in sub-8x8.
const int border = 0;
av1_make_inter_predictor(
pre, src_stride, dst, orig_dst_stride, &subpel_params, sf, b4_w, b4_h,
&conv_params, this_mbmi->interp_filters, &warp_types,
(mi_x >> pd->subsampling_x) + x, (mi_y >> pd->subsampling_y) + y,
plane, 0 /* ref */, mi, false /* build_for_obmc */, xd,
cm->allow_warped_motion, border);
++col;
}
++row;
}
for (int ref = 0; ref < 2; ++ref) {
pd->pre[ref] = orig_pred_buf[ref];
}
}
static void build_masked_compound_no_round(
uint8_t *dst, int dst_stride, const CONV_BUF_TYPE *src0, int src0_stride,
const CONV_BUF_TYPE *src1, int src1_stride,
const INTERINTER_COMPOUND_DATA *const comp_data, BLOCK_SIZE sb_type, int h,
int w, ConvolveParams *conv_params, MACROBLOCKD *xd) {
// Derive subsampling from h and w passed in. May be refactored to
// pass in subsampling factors directly.
const int subh = (2 << mi_size_high_log2[sb_type]) == h;
const int subw = (2 << mi_size_wide_log2[sb_type]) == w;
const uint8_t *mask = av1_get_compound_type_mask(comp_data, sb_type);
if (is_cur_buf_hbd(xd)) {
aom_highbd_blend_a64_d16_mask(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, block_size_wide[sb_type],
w, h, subw, subh, conv_params, xd->bd);
} else {
aom_lowbd_blend_a64_d16_mask(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, block_size_wide[sb_type], w,
h, subw, subh, conv_params);
}
}
static void av1_make_masked_inter_predictor(
const uint8_t *pre, int pre_stride, uint8_t *dst, int dst_stride,
const SubpelParams *subpel_params, const struct scale_factors *sf, int w,
int h, ConvolveParams *conv_params, int_interpfilters interp_filters,
int plane, const WarpTypesAllowed *warp_types, int p_col, int p_row,
int ref, MACROBLOCKD *xd, int can_use_previous) {
// Inter-predictor extended border not supported yet.
assert(av1_calc_border(xd, plane, false) == 0);
MB_MODE_INFO *mi = xd->mi[0];
mi->interinter_comp.seg_mask = xd->seg_mask;
const INTERINTER_COMPOUND_DATA *comp_data = &mi->interinter_comp;
// We're going to call av1_make_inter_predictor to generate a prediction into
// a temporary buffer, then will blend that temporary buffer with that from
// the other reference.
//
#define INTER_PRED_BYTES_PER_PIXEL 2
DECLARE_ALIGNED(32, uint8_t,
tmp_buf[INTER_PRED_BYTES_PER_PIXEL * MAX_SB_SQUARE]);
#undef INTER_PRED_BYTES_PER_PIXEL
const int tmp_buf_stride = MAX_SB_SIZE;
CONV_BUF_TYPE *org_dst = conv_params->dst;
int org_dst_stride = conv_params->dst_stride;
CONV_BUF_TYPE *tmp_buf16 = (CONV_BUF_TYPE *)tmp_buf;
conv_params->dst = tmp_buf16;
conv_params->dst_stride = tmp_buf_stride;
assert(conv_params->do_average == 0);
// This will generate a prediction in tmp_buf for the second reference
const int border = 0;
av1_make_inter_predictor(pre, pre_stride, dst, dst_stride, subpel_params, sf,
w, h, conv_params, interp_filters, warp_types, p_col,
p_row, plane, ref, mi, 0, xd, can_use_previous,
border);
if (!plane && comp_data->type == COMPOUND_DIFFWTD) {
#if CONFIG_CTX_ADAPT_LOG_WEIGHT || CONFIG_DIFFWTD_42
av1_build_compound_diffwtd_mask_d16_c(
comp_data->seg_mask, comp_data->mask_type, org_dst, org_dst_stride,
tmp_buf16, tmp_buf_stride, h, w, conv_params, xd->bd);
#else
av1_build_compound_diffwtd_mask_d16(
comp_data->seg_mask, comp_data->mask_type, org_dst, org_dst_stride,
tmp_buf16, tmp_buf_stride, h, w, conv_params, xd->bd);
#endif // CONFIG_CTX_ADAPT_LOG_WEIGHT || CONFIG_DIFFWTD_42
}
build_masked_compound_no_round(dst, dst_stride, org_dst, org_dst_stride,
tmp_buf16, tmp_buf_stride, comp_data,
mi->sb_type, h, w, conv_params, xd);
}
static void build_inter_predictors(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, MB_MODE_INFO *mi,
int build_for_obmc, int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args, uint8_t *dst,
int dst_stride, const int border) {
int is_compound = has_second_ref(mi);
ConvolveParams conv_params = get_conv_params_no_round(
0, plane, xd->tmp_conv_dst, MAX_SB_SIZE, is_compound, xd->bd);
av1_dist_wtd_comp_weight_assign(
cm, mi, 0, &conv_params.fwd_offset, &conv_params.bck_offset,
&conv_params.use_dist_wtd_comp_avg, is_compound);
struct macroblockd_plane *const pd = &xd->plane[plane];
struct buf_2d *const dst_buf = &pd->dst;
const int is_intrabc = is_intrabc_block(mi);
int is_global[2] = { 0, 0 };
for (int ref = 0; ref < 1 + is_compound; ++ref) {
const WarpedMotionParams *const wm = &xd->global_motion[mi->ref_frame[ref]];
is_global[ref] = is_global_mv_block(mi, wm->wmtype);
}
const int ss_x = pd->subsampling_x;
const int ss_y = pd->subsampling_y;
int row_start = 0;
int col_start = 0;
if (!build_for_obmc) {
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
int mi_row_offset, mi_col_offset;
mi_row_offset =
plane ? (mi_row - mi->chroma_ref_info.mi_row_chroma_base) : 0;
mi_col_offset =
plane ? (mi_col - mi->chroma_ref_info.mi_col_chroma_base) : 0;
row_start = -mi_row_offset;
col_start = -mi_col_offset;
}
const int pre_x = (mi_x + MI_SIZE * col_start) >> ss_x;
const int pre_y = (mi_y + MI_SIZE * row_start) >> ss_y;
#if CONFIG_DERIVED_MV
const int use_derived_mv = mi->derived_mv_allowed && mi->use_derived_mv;
#endif // CONFIG_DERIVED_MV
#if CONFIG_OPTFLOW_REFINEMENT
const int use_optflow_prec = (mi->mode > NEW_NEWMV) && is_compound;
assert(IMPLIES(use_optflow_prec, !build_for_obmc));
// Obtain offset MVs in Y plane
if (use_optflow_prec && plane == 0) {
// Initialize refined mv
#if CONFIG_DERIVED_MV
const MV mv0 = use_derived_mv ? mi->derived_mv[0] : mi->mv[0].as_mv;
const MV mv1 = use_derived_mv ? mi->derived_mv[1] : mi->mv[1].as_mv;
#else
const MV mv0 = mi->mv[0].as_mv;
const MV mv1 = mi->mv[1].as_mv;
#endif // CONFIG_DERIVED_MV
for (int mvi = 0; mvi < N_OF_OFFSETS; mvi++) {
mi->mv_refined[mvi * 2].as_mv = mv0;
mi->mv_refined[mvi * 2 + 1].as_mv = mv1;
}
av1_get_optflow_based_mv(cm, xd, plane, mi, mi->mv_refined, bw, bh, mi_x,
mi_y, calc_subpel_params_func,
calc_subpel_params_func_args);
}
#endif // CONFIG_OPTFLOW_REFINEMENT
assert(IMPLIES(is_intrabc || is_compound, dst == dst_buf->buf));
for (int ref = 0; ref < 1 + is_compound; ++ref) {
const struct scale_factors *const sf =
is_intrabc ? &cm->sf_identity : xd->block_ref_scale_factors[ref];
struct buf_2d *const pre_buf = is_intrabc ? dst_buf : &pd->pre[ref];
#if CONFIG_DERIVED_MV
const MV mv = use_derived_mv ? mi->derived_mv[ref] : mi->mv[ref].as_mv;
#else
const MV mv = mi->mv[ref].as_mv;
#endif // CONFIG_DERIVED_MV
const WarpTypesAllowed warp_types = { is_global[ref],
mi->motion_mode == WARPED_CAUSAL };
uint8_t *pre;
SubpelParams subpel_params;
int src_stride;
#if CONFIG_OPTFLOW_REFINEMENT
// For luma, always apply offset MVs. For chroma, use the MVs derived for
// luma if luma subblock size is 8x8 (i.e., chroma block size > 8x8),
// and otherwise apply normal compound average.
if (use_optflow_prec && (plane == 0 || bh > 8 || bw > 8)) {
conv_params.do_average = ref;
#if USE_OF_NXN
int n = plane ? OF_BSIZE / 2
: ((bh <= 16 && bw <= 16) ? OF_MIN_BSIZE : OF_BSIZE);
make_inter_pred_of_nxn(
dst, dst_buf->stride, &subpel_params, sf, bw, bh, &conv_params,
mi->interp_filters, &warp_types, mi_x >> pd->subsampling_x,
mi_y >> pd->subsampling_y, plane, ref, mi, xd,
cm->allow_warped_motion, n, mi->mv_refined, pre_x, pre_y, pre_buf,
calc_subpel_params_func, calc_subpel_params_func_args);
#else
// Compute subpel params with refined mv
calc_subpel_params_func(xd, sf, &(mi->mv_refined[ref].as_mv), plane,
pre_x, pre_y, 0, 0, pre_buf, bw, bh, &warp_types,
ref, 1, calc_subpel_params_func_args, &pre,
&subpel_params, &src_stride);
av1_make_inter_predictor(
pre, src_stride, dst, dst_buf->stride, &subpel_params, sf, bw, bh,
&conv_params, mi->interp_filters, &warp_types,
mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y, plane, ref, mi,
0, xd, cm->allow_warped_motion, 0 /* border */);
#endif // USE_OF_NXN
// Predictor already built
continue;
} else {
calc_subpel_params_func(xd, sf, &mv, plane, pre_x, pre_y, 0, 0, pre_buf,
bw, bh, &warp_types, ref, 0,
calc_subpel_params_func_args, &pre,
&subpel_params, &src_stride);
}
#else
calc_subpel_params_func(xd, sf, &mv, plane, pre_x, pre_y, 0, 0, pre_buf, bw,
bh, &warp_types, ref, calc_subpel_params_func_args,
&pre, &subpel_params, &src_stride);
#endif // CONFIG_OPTFLOW_REFINEMENT
if (ref && is_masked_compound_type(mi->interinter_comp.type)) {
// masked compound type has its own average mechanism
conv_params.do_average = 0;
assert(!build_for_obmc);
av1_make_masked_inter_predictor(
pre, src_stride, dst, dst_stride, &subpel_params, sf, bw, bh,
&conv_params, mi->interp_filters, plane, &warp_types,
mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y, ref, xd,
cm->allow_warped_motion);
} else {
conv_params.do_average = ref;
#if CONFIG_EXT_IBC_MODES
// IBC+ Winners Only : Extract Predicted block & translate accordingly
if (is_intrabc && mi->ibc_mode) {
uint8_t ibcWinMode = mi->ibc_mode;
// Allocate & Extract/Fetch predicted block
uint16_t *pred_block = NULL;
uint8_t *dst_block = CONVERT_TO_BYTEPTR(xd->ibc_pred);
uint8_t dst_block_stride = 128;
if (bw != bh &&
(ibcWinMode == ROTATION_90 || ibcWinMode == ROTATION_270 ||
ibcWinMode == MIRROR_45 || ibcWinMode == MIRROR_135)) {
av1_make_inter_predictor(
pre, src_stride, dst_block, dst_block_stride, &subpel_params, sf,
bh, bw, &conv_params, mi->interp_filters, &warp_types,
mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y, plane, ref,
mi, build_for_obmc, xd, cm->allow_warped_motion, border);
av1_intrabc_allocate_sb(&pred_block, bh, bw);
av1_fetch_prediction_sb(dst_block, dst_block_stride, pred_block, bh,
bw);
} else {
av1_make_inter_predictor(
pre, src_stride, dst_block, dst_block_stride, &subpel_params, sf,
bw, bh, &conv_params, mi->interp_filters, &warp_types,
mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y, plane, ref,
mi, build_for_obmc, xd, cm->allow_warped_motion, border);
av1_intrabc_allocate_sb(&pred_block, bw, bh);
av1_fetch_prediction_sb(dst_block, dst_block_stride, pred_block, bw,
bh);
}
switch (ibcWinMode) {
case MIRROR_90:
av1_intrabc_mirror90_sb(xd->ibc_pred, pred_block, bw, bh);
break;
case MIRROR_0:
av1_intrabc_mirror0_sb(xd->ibc_pred, pred_block, bw, bh);
break;
case ROTATION_180:
av1_intrabc_rotate180_sb(xd->ibc_pred, pred_block, bw, bh);
break;
case ROTATION_90:
av1_intrabc_rotate270_sb(xd->ibc_pred, pred_block, bh, bw);
break;
case MIRROR_135:
av1_intrabc_mirror135_sb(xd->ibc_pred, pred_block, bh, bw);
break;
case MIRROR_45:
av1_intrabc_mirror45_sb(xd->ibc_pred, pred_block, bh, bw);
break;
case ROTATION_270:
av1_intrabc_rotate90_sb(xd->ibc_pred, pred_block, bh, bw);
break;
default: break; // assert(0);
}
av1_write_prediction_sb(dst, dst_stride, xd->ibc_pred, bw, bh);
// Deallocate 1D arrays
aom_free(pred_block);
} else { // Regular IBC
av1_make_inter_predictor(
pre, src_stride, dst, dst_stride, &subpel_params, sf, bw, bh,
&conv_params, mi->interp_filters, &warp_types,
mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y, plane, ref,
mi, build_for_obmc, xd, cm->allow_warped_motion, border);
}
#else
av1_make_inter_predictor(
pre, src_stride, dst, dst_stride, &subpel_params, sf, bw, bh,
&conv_params, mi->interp_filters, &warp_types,
mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y, plane, ref, mi,
build_for_obmc, xd, cm->allow_warped_motion, border);
#endif // CONFIG_EXT_IBC_MODES
}
}
}
#if CONFIG_DERIVED_MV
#define DERIVED_MV_REF_LINES 4
#define REFINE_SUBPEL_RANGE 8
#define REFINE_FULLPEL_RANGE 4
#define REFINE_FULLPEL_STEP 1
#define DERIVED_MV_IDX_RANGE 1
#define DERIVED_MV_MAX_BSIZE 64
#define DERIVED_MV_MIN_BSIZE 4
int av1_derived_mv_allowed(MACROBLOCKD *const xd, MB_MODE_INFO *const mbmi) {
const BLOCK_SIZE bsize = mbmi->sb_type;
const int bw = block_size_wide[bsize];
const int bh = block_size_high[bsize];
return !is_cur_buf_hbd(xd) &&
(mbmi->mode == NEARMV ||
#if CONFIG_OPTFLOW_REFINEMENT
mbmi->mode == NEAR_NEARMV_OPTFLOW ||
#endif // CONFIG_OPTFLOW_REFINEMENT
mbmi->mode == NEAR_NEARMV) &&
bw <= DERIVED_MV_MAX_BSIZE && bh <= DERIVED_MV_MAX_BSIZE &&
bw >= DERIVED_MV_MIN_BSIZE && bh >= DERIVED_MV_MIN_BSIZE &&
xd->mi_row + mi_size_high[bsize] <= xd->tile.mi_row_end &&
xd->mi_col + mi_size_wide[bsize] <= xd->tile.mi_col_end &&
xd->mi_row > xd->tile.mi_row_start &&
xd->mi_col > xd->tile.mi_col_start;
}
// A mesh full pel search around the reference MV.
static MV full_pel_refine(const AV1_COMMON *const cm, MACROBLOCKD *xd, int ref,
BLOCK_SIZE bsize, MV ref_mv, const uint8_t *top,
const uint8_t *left, const uint8_t *top_left,
int stride, aom_subpixvariance_fn_t svp_fn_top,
aom_subpixvariance_fn_t svp_fn_left,
uint32_t *best_error) {
struct macroblockd_plane *const pd = &xd->plane[0];
const uint8_t *ref_buf = pd->pre[ref].buf;
const int ref_stride = pd->pre[ref].stride;
*best_error = UINT32_MAX;
uint32_t sse;
MV best_mv = ref_mv;
ref_mv.row = ref_mv.row >> 3;
ref_mv.col = ref_mv.col >> 3;
const int x = xd->mi_col * 4 * 8;
const int y = xd->mi_row * 4 * 8;
for (int r = ref_mv.row - REFINE_FULLPEL_RANGE;
r <= ref_mv.row + REFINE_FULLPEL_RANGE; r += REFINE_FULLPEL_STEP) {
for (int c = ref_mv.col - REFINE_FULLPEL_RANGE;
c <= ref_mv.col + REFINE_FULLPEL_RANGE; c += REFINE_FULLPEL_STEP) {
// Do not consider it when falling out of frame boundary. It may cause
// mismatches because boarder extenstion is handled differently on the
// encoder and decoder side.
if (x + c * 8 - DERIVED_MV_REF_LINES * 8 < 0 ||
y + r * 8 - DERIVED_MV_REF_LINES * 8 < 0 ||
xd->mi_col * 4 + block_size_wide[bsize] + c >= cm->width ||
xd->mi_row * 4 + block_size_high[bsize] + r >= cm->height) {
continue;
}
const uint8_t *pre_top =
ref_buf + (r - DERIVED_MV_REF_LINES) * ref_stride + c;
const uint8_t *pre_left =
ref_buf + r * ref_stride + c - DERIVED_MV_REF_LINES;
const uint8_t *pre_top_left = ref_buf +
(r - DERIVED_MV_REF_LINES) * ref_stride +
c - DERIVED_MV_REF_LINES;
const uint32_t top_error =
svp_fn_top(pre_top, ref_stride, 0, 0, top, stride, &sse);
const uint32_t left_error =
svp_fn_left(pre_left, ref_stride, 0, 0, left, stride, &sse);
const uint32_t top_left_error = aom_sub_pixel_variance4x4(
pre_top_left, ref_stride, 0, 0, top_left, stride, &sse);
const uint32_t this_error = top_error + left_error + top_left_error;
if (this_error < *best_error) {
*best_error = this_error;
best_mv.row = r * 8;
best_mv.col = c * 8;
}
}
}
return best_mv;
}
MV av1_derive_mv(const AV1_COMMON *const cm, MACROBLOCKD *xd, int ref,
MB_MODE_INFO *mbmi, uint8_t *recon_buf, int recon_stride) {
struct macroblockd_plane *const pd = &xd->plane[0];
const uint8_t *ref_buf = pd->pre[ref].buf;
const int ref_stride = pd->pre[ref].stride;
const uint8_t *recon_top = recon_buf - DERIVED_MV_REF_LINES * recon_stride;
const uint8_t *recon_left = recon_buf - DERIVED_MV_REF_LINES;
const uint8_t *recon_top_left =
recon_buf - DERIVED_MV_REF_LINES * recon_stride - DERIVED_MV_REF_LINES;
const BLOCK_SIZE bsize = mbmi->sb_type;
const int bwl = mi_size_wide_log2[bsize];
const int bhl = mi_size_high_log2[bsize];
aom_subpixvariance_fn_t svp_fn_top, svp_fn_left;
switch (bwl) {
case 0: svp_fn_top = aom_sub_pixel_variance4x4; break;
case 1: svp_fn_top = aom_sub_pixel_variance8x4; break;
case 2: svp_fn_top = aom_sub_pixel_variance16x4; break;
case 3: svp_fn_top = aom_sub_pixel_variance32x4; break;
default: svp_fn_top = aom_sub_pixel_variance64x4; break;
}
switch (bhl) {
case 0: svp_fn_left = aom_sub_pixel_variance4x4; break;
case 1: svp_fn_left = aom_sub_pixel_variance4x8; break;
case 2: svp_fn_left = aom_sub_pixel_variance4x16; break;
case 3: svp_fn_left = aom_sub_pixel_variance4x32; break;
default: svp_fn_left = aom_sub_pixel_variance4x64; break;
}
uint32_t best_error = UINT32_MAX;
uint32_t sse;
int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES];
int_mv ref_mvs[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES] = { { { 0 } } };
MV_REFERENCE_FRAME ref_frame = av1_ref_frame_type(mbmi->ref_frame);
av1_find_mv_refs(cm, xd, mbmi, ref_frame, &xd->ref_mv_info, ref_mvs, NULL,
inter_mode_ctx);
MV best_mv = ref ? xd->ref_mv_info.ref_mv_stack[ref_frame][0].comp_mv.as_mv
: xd->ref_mv_info.ref_mv_stack[ref_frame][0].this_mv.as_mv;
int step = 1;
if (cm->fr_mv_precision == MV_SUBPEL_NONE) {
step = 8;
} else if (cm->fr_mv_precision == MV_SUBPEL_HALF_PRECISION) {
step = 4;
} else if (cm->fr_mv_precision == MV_SUBPEL_QTR_PRECISION) {
step = 2;
}
const int x = xd->mi_col * 4 * 8;
const int y = xd->mi_row * 4 * 8;
const int bw = block_size_wide[bsize];
const int bh = block_size_high[bsize];
// Full pixel motion search around each reference MV.
for (int i = 0; i < AOMMIN(DERIVED_MV_IDX_RANGE,
xd->ref_mv_info.ref_mv_count[ref_frame]);
++i) {
MV ref_mv = ref ? xd->ref_mv_info.ref_mv_stack[ref_frame][i].comp_mv.as_mv
: xd->ref_mv_info.ref_mv_stack[ref_frame][i].this_mv.as_mv;
uint32_t full_pel_error;
// Search the full pel locations around the ref_mv.
ref_mv = full_pel_refine(cm, xd, ref, bsize, ref_mv, recon_top, recon_left,
recon_top_left, recon_stride, svp_fn_top,
svp_fn_left, &full_pel_error);
if (full_pel_error < best_error) {
best_error = full_pel_error;
best_mv = ref_mv;
}
}
const MV best_full_pel_mv = best_mv;
// Subpel search around the best full pel MV.
for (int r = best_full_pel_mv.row - REFINE_SUBPEL_RANGE;
r <= best_full_pel_mv.row + REFINE_SUBPEL_RANGE; r += step) {
for (int c = best_full_pel_mv.col - REFINE_SUBPEL_RANGE;
c <= best_full_pel_mv.col + REFINE_SUBPEL_RANGE; c += step) {
if (x + c - DERIVED_MV_REF_LINES * 8 < 0 ||
y + r - DERIVED_MV_REF_LINES * 8 < 0 ||
(xd->mi_col * 4 + bw) * 8 + c >= cm->width * 8 ||
(xd->mi_row * 4 + bh) * 8 + r >= cm->height * 8) {
continue;
}
const int r_int = r >> 3;
const int c_int = c >> 3;
const int r_sub = r & 7;
const int c_sub = c & 7;
const uint8_t *pre_top =
ref_buf + (r_int - DERIVED_MV_REF_LINES) * ref_stride + c_int;
const uint8_t *pre_left =
ref_buf + r_int * ref_stride + c_int - DERIVED_MV_REF_LINES;
const uint8_t *pre_top_left =
ref_buf + (r_int - DERIVED_MV_REF_LINES) * ref_stride + c_int -
DERIVED_MV_REF_LINES;
const uint32_t top_error = svp_fn_top(pre_top, ref_stride, c_sub, r_sub,
recon_top, recon_stride, &sse);
const uint32_t left_error = svp_fn_left(
pre_left, ref_stride, c_sub, r_sub, recon_left, recon_stride, &sse);
const uint32_t top_left_error =
aom_sub_pixel_variance4x4(pre_top_left, ref_stride, c_sub, r_sub,
recon_top_left, recon_stride, &sse);
const uint32_t this_error = top_error + left_error + top_left_error;
if (this_error < best_error) {
best_error = this_error;
best_mv.row = r;
best_mv.col = c;
}
}
}
return best_mv;
}
#endif // CONFIG_DERIVED_MV
// True if the following hold:
// 1. Not intrabc and not build_for_obmc
// 2. A U or V plane
// 3. If the block size differs from the base block size
// 4. If sub-sampled, none of the previous blocks around the sub-sample
// are intrabc or inter-blocks
static bool is_sub8x8_inter(const MACROBLOCKD *xd, int plane,
const MB_MODE_INFO *mi, int build_for_obmc) {
const int is_intrabc = is_intrabc_block(mi);
if (is_intrabc || build_for_obmc) {
return false;
}
const BLOCK_SIZE bsize = mi->sb_type;
int sub8x8_inter = plane && (bsize != mi->chroma_ref_info.bsize_base);
if (!sub8x8_inter) {
return false;
}
// For sub8x8 chroma blocks, we may be covering more than one luma block's
// worth of pixels.
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
const int row_start =
plane ? mi->chroma_ref_info.mi_row_chroma_base - mi_row : 0;
const int col_start =
plane ? mi->chroma_ref_info.mi_col_chroma_base - mi_col : 0;
for (int row = row_start; row <= 0; ++row) {
for (int col = col_start; col <= 0; ++col) {
const MB_MODE_INFO *this_mbmi = xd->mi[row * xd->mi_stride + col];
if (!is_inter_block(this_mbmi) || is_intrabc_block(this_mbmi)) {
return false;
}
}
}
return true;
}
int av1_calc_border(const MACROBLOCKD *xd, int plane, int build_for_obmc) {
#if CONFIG_INTERINTRA_BORDER
// Intra-block copy will set the source pointer to a different location in
// the destination buffer. It's possible that the border pixels around
// that region have not been initialized. Compound mode does not currently
// work as the masked inter-predictor needs to increase its region used
// for the mask.
const MB_MODE_INFO *mi = xd->mi[0];
const bool is_compound = has_second_ref(mi);
const bool intra_bc = mi->use_intrabc;
if (is_compound || intra_bc) {
return 0;
}
// Not implemented for sub-8x8 blocks.
if (is_sub8x8_inter(xd, plane, mi, build_for_obmc)) {
return 0;
}
return INTERINTRA_PRED_BORDER;
#endif // CONFIG_INTERINTRA_BORDER
(void)xd;
(void)plane;
(void)build_for_obmc;
return 0;
}
void av1_build_inter_predictors(const AV1_COMMON *cm, MACROBLOCKD *xd,
int plane, MB_MODE_INFO *mi, int build_for_obmc,
int bw, int bh, int mi_x, int mi_y,
CalcSubpelParamsFunc calc_subpel_params_func,
const void *const calc_subpel_params_func_args,
uint8_t *dst, int dst_stride, int border) {
if (is_sub8x8_inter(xd, plane, mi, build_for_obmc)) {
assert(border == 0); // Not yet supported for sub8x8.
build_inter_predictors_sub8x8(
cm, xd, plane, mi, bw, bh, mi_x, mi_y, calc_subpel_params_func,
calc_subpel_params_func_args, dst, dst_stride);
} else {
build_inter_predictors(cm, xd, plane, mi, build_for_obmc, bw, bh, mi_x,
mi_y, calc_subpel_params_func,
calc_subpel_params_func_args, dst, dst_stride,
border);
}
}
#if USE_PRECOMPUTED_WEDGE_MASK
static const uint8_t wedge_master_oblique_odd[MASK_MASTER_SIZE] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 6, 18,
37, 53, 60, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
};
static const uint8_t wedge_master_oblique_even[MASK_MASTER_SIZE] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 11, 27,
46, 58, 62, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
};
static const uint8_t wedge_master_vertical[MASK_MASTER_SIZE] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 7, 21,
43, 57, 62, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
};
static void shift_copy(const uint8_t *src, uint8_t *dst, int shift, int width) {
if (shift >= 0) {
memcpy(dst + shift, src, width - shift);
memset(dst, src[0], shift);
} else {
shift = -shift;
memcpy(dst, src + shift, width - shift);
memset(dst + width - shift, src[width - 1], shift);
}
}
#endif // USE_PRECOMPUTED_WEDGE_MASK
#if USE_PRECOMPUTED_WEDGE_SIGN
/* clang-format off */
DECLARE_ALIGNED(16, static uint8_t,
wedge_signflip_lookup[BLOCK_SIZES_ALL][MAX_WEDGE_TYPES]) = {
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, },
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
#if CONFIG_FLEX_PARTITION
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, // not used
#endif // CONFIG_FLEX_PARTITION
};
/* clang-format on */
#else
DECLARE_ALIGNED(16, static uint8_t,
wedge_signflip_lookup[BLOCK_SIZES_ALL][MAX_WEDGE_TYPES]);
#endif // USE_PRECOMPUTED_WEDGE_SIGN
// [negative][direction]
DECLARE_ALIGNED(
16, static uint8_t,
wedge_mask_obl[2][WEDGE_DIRECTIONS][MASK_MASTER_SIZE * MASK_MASTER_SIZE]);
// 4 * MAX_WEDGE_SQUARE is an easy to compute and fairly tight upper bound
// on the sum of all mask sizes up to an including MAX_WEDGE_SQUARE.
DECLARE_ALIGNED(16, static uint8_t,
wedge_mask_buf[2 * MAX_WEDGE_TYPES * 4 * MAX_WEDGE_SQUARE]);
static wedge_masks_type wedge_masks[BLOCK_SIZES_ALL][2];
static const wedge_code_type wedge_codebook_16_hgtw[16] = {
{ WEDGE_OBLIQUE27, 4, 4 }, { WEDGE_OBLIQUE63, 4, 4 },
{ WEDGE_OBLIQUE117, 4, 4 }, { WEDGE_OBLIQUE153, 4, 4 },
{ WEDGE_HORIZONTAL, 4, 2 }, { WEDGE_HORIZONTAL, 4, 4 },
{ WEDGE_HORIZONTAL, 4, 6 }, { WEDGE_VERTICAL, 4, 4 },
{ WEDGE_OBLIQUE27, 4, 2 }, { WEDGE_OBLIQUE27, 4, 6 },
{ WEDGE_OBLIQUE153, 4, 2 }, { WEDGE_OBLIQUE153, 4, 6 },
{ WEDGE_OBLIQUE63, 2, 4 }, { WEDGE_OBLIQUE63, 6, 4 },
{ WEDGE_OBLIQUE117, 2, 4 }, { WEDGE_OBLIQUE117, 6, 4 },
};
static const wedge_code_type wedge_codebook_16_hltw[16] = {
{ WEDGE_OBLIQUE27, 4, 4 }, { WEDGE_OBLIQUE63, 4, 4 },
{ WEDGE_OBLIQUE117, 4, 4 }, { WEDGE_OBLIQUE153, 4, 4 },
{ WEDGE_VERTICAL, 2, 4 }, { WEDGE_VERTICAL, 4, 4 },
{ WEDGE_VERTICAL, 6, 4 }, { WEDGE_HORIZONTAL, 4, 4 },
{ WEDGE_OBLIQUE27, 4, 2 }, { WEDGE_OBLIQUE27, 4, 6 },
{ WEDGE_OBLIQUE153, 4, 2 }, { WEDGE_OBLIQUE153, 4, 6 },
{ WEDGE_OBLIQUE63, 2, 4 }, { WEDGE_OBLIQUE63, 6, 4 },
{ WEDGE_OBLIQUE117, 2, 4 }, { WEDGE_OBLIQUE117, 6, 4 },
};
static const wedge_code_type wedge_codebook_16_heqw[16] = {
{ WEDGE_OBLIQUE27, 4, 4 }, { WEDGE_OBLIQUE63, 4, 4 },
{ WEDGE_OBLIQUE117, 4, 4 }, { WEDGE_OBLIQUE153, 4, 4 },
{ WEDGE_HORIZONTAL, 4, 2 }, { WEDGE_HORIZONTAL, 4, 6 },
{ WEDGE_VERTICAL, 2, 4 }, { WEDGE_VERTICAL, 6, 4 },
{ WEDGE_OBLIQUE27, 4, 2 }, { WEDGE_OBLIQUE27, 4, 6 },
{ WEDGE_OBLIQUE153, 4, 2 }, { WEDGE_OBLIQUE153, 4, 6 },
{ WEDGE_OBLIQUE63, 2, 4 }, { WEDGE_OBLIQUE63, 6, 4 },
{ WEDGE_OBLIQUE117, 2, 4 }, { WEDGE_OBLIQUE117, 6, 4 },
};
const wedge_params_type av1_wedge_params_lookup[BLOCK_SIZES_ALL] = {
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 4, wedge_codebook_16_heqw, wedge_signflip_lookup[BLOCK_8X8],
wedge_masks[BLOCK_8X8] },
{ 4, wedge_codebook_16_hgtw, wedge_signflip_lookup[BLOCK_8X16],
wedge_masks[BLOCK_8X16] },
{ 4, wedge_codebook_16_hltw, wedge_signflip_lookup[BLOCK_16X8],
wedge_masks[BLOCK_16X8] },
{ 4, wedge_codebook_16_heqw, wedge_signflip_lookup[BLOCK_16X16],
wedge_masks[BLOCK_16X16] },
{ 4, wedge_codebook_16_hgtw, wedge_signflip_lookup[BLOCK_16X32],
wedge_masks[BLOCK_16X32] },
{ 4, wedge_codebook_16_hltw, wedge_signflip_lookup[BLOCK_32X16],
wedge_masks[BLOCK_32X16] },
{ 4, wedge_codebook_16_heqw, wedge_signflip_lookup[BLOCK_32X32],
wedge_masks[BLOCK_32X32] },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ CONFIG_SEGMENT_BASED_PARTITIONING, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ CONFIG_SEGMENT_BASED_PARTITIONING, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 4, wedge_codebook_16_hgtw, wedge_signflip_lookup[BLOCK_8X32],
wedge_masks[BLOCK_8X32] },
{ 4, wedge_codebook_16_hltw, wedge_signflip_lookup[BLOCK_32X8],
wedge_masks[BLOCK_32X8] },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
#if CONFIG_FLEX_PARTITION
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
{ 0, NULL, NULL, NULL },
#endif // CONFIG_FLEX_PARTITION
};
static const uint8_t *get_wedge_mask_inplace(int wedge_index, int neg,
BLOCK_SIZE sb_type) {
const uint8_t *master;
const int bh = block_size_high[sb_type];
const int bw = block_size_wide[sb_type];
const wedge_code_type *a =
av1_wedge_params_lookup[sb_type].codebook + wedge_index;
int woff, hoff;
const uint8_t wsignflip =
av1_wedge_params_lookup[sb_type].signflip[wedge_index];
assert(wedge_index >= 0 &&
wedge_index < (1 << get_wedge_bits_lookup(sb_type)));
woff = (a->x_offset * bw) >> 3;
hoff = (a->y_offset * bh) >> 3;
master = wedge_mask_obl[neg ^ wsignflip][a->direction] +
MASK_MASTER_STRIDE * (MASK_MASTER_SIZE / 2 - hoff) +
MASK_MASTER_SIZE / 2 - woff;
return master;
}
const uint8_t *av1_get_compound_type_mask(
const INTERINTER_COMPOUND_DATA *const comp_data, BLOCK_SIZE sb_type) {
assert(is_masked_compound_type(comp_data->type));
(void)sb_type;
switch (comp_data->type) {
case COMPOUND_WEDGE:
#if CONFIG_SEGMENT_BASED_PARTITIONING
if (av1_wedge_params_lookup[sb_type].codebook == NULL) {
// We are using an arbitrary mask, stored earlier.
return comp_data->seg_mask;
}
#endif // CONFIG_SEGMENT_BASED_PARTITIONING
return av1_get_contiguous_soft_mask(comp_data->wedge_index,
comp_data->wedge_sign, sb_type);
case COMPOUND_DIFFWTD: return comp_data->seg_mask;
default: assert(0); return NULL;
}
}
static void diffwtd_mask_d16(uint8_t *mask, int which_inverse, int mask_base,
const CONV_BUF_TYPE *src0, int src0_stride,
const CONV_BUF_TYPE *src1, int src1_stride, int h,
int w, ConvolveParams *conv_params, int bd) {
#if CONFIG_CTX_ADAPT_LOG_WEIGHT
(void)bd;
(void)mask_base;
double *R0 = NULL;
double *R1 = NULL;
int m;
const CONV_BUF_TYPE *pred0 = which_inverse ? src1 : src0;
const CONV_BUF_TYPE *pred1 = which_inverse ? src0 : src1;
int stride0 = which_inverse ? src1_stride : src0_stride;
int stride1 = which_inverse ? src0_stride : src1_stride;
R0 = gen_correlation(pred0, stride0, h, w, log_k, LOG_K_SIZE, conv_params);
R1 = gen_correlation(pred1, stride1, h, w, log_k, LOG_K_SIZE, conv_params);
int i, j;
for (i = 0; i < h; ++i) {
for (j = 0; j < w; ++j) {
double_t edge_diff = fabs(R0[i * w + j]) - fabs(R1[i * w + j]);
if (edge_diff < DIFFLOG_THR) {
m = LOG_WEIGHT_1;
} else {
m = LOG_WEIGHT_0;
}
mask[i * w + j] = which_inverse ? AOM_BLEND_A64_MAX_ALPHA - m : m;
}
}
free(R0);
free(R1);
#else
int round =
2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1 + (bd - 8);
int i, j, m, diff;
for (i = 0; i < h; ++i) {
for (j = 0; j < w; ++j) {
diff = abs(src0[i * src0_stride + j] - src1[i * src1_stride + j]);
diff = ROUND_POWER_OF_TWO(diff, round);
m = clamp(mask_base + (diff / DIFF_FACTOR), 0, AOM_BLEND_A64_MAX_ALPHA);
mask[i * w + j] = which_inverse ? AOM_BLEND_A64_MAX_ALPHA - m : m;
}
}
#endif // CONFIG_CTX_ADAPT_LOG_WEIGHT
}
void av1_build_compound_diffwtd_mask_d16_c(
uint8_t *mask, DIFFWTD_MASK_TYPE mask_type, const CONV_BUF_TYPE *src0,
int src0_stride, const CONV_BUF_TYPE *src1, int src1_stride, int h, int w,
ConvolveParams *conv_params, int bd) {
switch (mask_type) {
case NORMAL_MASK:
diffwtd_mask_d16(mask, 0, DIFFWTD_MASK_VAL, src0, src0_stride, src1,
src1_stride, h, w, conv_params, bd);
break;
case INVERSE_MASK:
diffwtd_mask_d16(mask, 1, DIFFWTD_MASK_VAL, src0, src0_stride, src1,
src1_stride, h, w, conv_params, bd);
break;
default: assert(0);
}
}
static void diffwtd_mask(uint8_t *mask, int which_inverse, int mask_base,
const uint8_t *src0, int src0_stride,
const uint8_t *src1, int src1_stride, int h, int w) {
#if CONFIG_CTX_ADAPT_LOG_WEIGHT
(void)mask_base;
double *R0 = NULL;
double *R1 = NULL;
int m;
const uint8_t *pred0 = which_inverse ? src1 : src0;
const uint8_t *pred1 = which_inverse ? src0 : src1;
int stride0 = which_inverse ? src1_stride : src0_stride;
int stride1 = which_inverse ? src0_stride : src1_stride;
R0 = gen_correlation_uint8(pred0, stride0, h, w, log_k, LOG_K_SIZE);
R1 = gen_correlation_uint8(pred1, stride1, h, w, log_k, LOG_K_SIZE);
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
// this one works better
double_t edge_diff = fabs(R0[i * w + j]) - fabs(R1[i * w + j]);
if (edge_diff < DIFFLOG_THR) {
m = LOG_WEIGHT_1;
} else {
m = LOG_WEIGHT_0;
}
mask[i * w + j] = which_inverse ? AOM_BLEND_A64_MAX_ALPHA - m : m;
}
}
free(R0);
free(R1);
#else
int i, j, m, diff;
for (i = 0; i < h; ++i) {
for (j = 0; j < w; ++j) {
diff =
abs((int)src0[i * src0_stride + j] - (int)src1[i * src1_stride + j]);
m = clamp(mask_base + (diff / DIFF_FACTOR), 0, AOM_BLEND_A64_MAX_ALPHA);
mask[i * w + j] = which_inverse ? AOM_BLEND_A64_MAX_ALPHA - m : m;
}
}
#endif // CONFIG_CTX_ADAPT_LOG_WEIGHT
}
void av1_build_compound_diffwtd_mask_c(uint8_t *mask,
DIFFWTD_MASK_TYPE mask_type,
const uint8_t *src0, int src0_stride,
const uint8_t *src1, int src1_stride,
int h, int w) {
switch (mask_type) {
case NORMAL_MASK:
diffwtd_mask(mask, 0, DIFFWTD_MASK_VAL, src0, src0_stride, src1,
src1_stride, h, w);
break;
case INVERSE_MASK:
diffwtd_mask(mask, 1, DIFFWTD_MASK_VAL, src0, src0_stride, src1,
src1_stride, h, w);
break;
default: assert(0);
}
}
static AOM_FORCE_INLINE void diffwtd_mask_highbd(
uint8_t *mask, int which_inverse, int mask_base, const uint16_t *src0,
int src0_stride, const uint16_t *src1, int src1_stride, int h, int w,
const unsigned int bd) {
assert(bd >= 8);
if (bd == 8) {
if (which_inverse) {
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
int diff = abs((int)src0[j] - (int)src1[j]) / DIFF_FACTOR;
unsigned int m = negative_to_zero(mask_base + diff);
m = AOMMIN(m, AOM_BLEND_A64_MAX_ALPHA);
mask[j] = AOM_BLEND_A64_MAX_ALPHA - m;
}
src0 += src0_stride;
src1 += src1_stride;
mask += w;
}
} else {
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
int diff = abs((int)src0[j] - (int)src1[j]) / DIFF_FACTOR;
unsigned int m = negative_to_zero(mask_base + diff);
m = AOMMIN(m, AOM_BLEND_A64_MAX_ALPHA);
mask[j] = m;
}
src0 += src0_stride;
src1 += src1_stride;
mask += w;
}
}
} else {
const unsigned int bd_shift = bd - 8;
if (which_inverse) {
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
int diff =
(abs((int)src0[j] - (int)src1[j]) >> bd_shift) / DIFF_FACTOR;
unsigned int m = negative_to_zero(mask_base + diff);
m = AOMMIN(m, AOM_BLEND_A64_MAX_ALPHA);
mask[j] = AOM_BLEND_A64_MAX_ALPHA - m;
}
src0 += src0_stride;
src1 += src1_stride;
mask += w;
}
} else {
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
int diff =
(abs((int)src0[j] - (int)src1[j]) >> bd_shift) / DIFF_FACTOR;
unsigned int m = negative_to_zero(mask_base + diff);
m = AOMMIN(m, AOM_BLEND_A64_MAX_ALPHA);
mask[j] = m;
}
src0 += src0_stride;
src1 += src1_stride;
mask += w;
}
}
}
}
void av1_build_compound_diffwtd_mask_highbd_c(
uint8_t *mask, DIFFWTD_MASK_TYPE mask_type, const uint8_t *src0,
int src0_stride, const uint8_t *src1, int src1_stride, int h, int w,
int bd) {
switch (mask_type) {
case NORMAL_MASK:
diffwtd_mask_highbd(mask, 0, DIFFWTD_MASK_VAL, CONVERT_TO_SHORTPTR(src0),
src0_stride, CONVERT_TO_SHORTPTR(src1), src1_stride,
h, w, bd);
break;
case INVERSE_MASK:
diffwtd_mask_highbd(mask, 1, DIFFWTD_MASK_VAL, CONVERT_TO_SHORTPTR(src0),
src0_stride, CONVERT_TO_SHORTPTR(src1), src1_stride,
h, w, bd);
break;
default: assert(0);
}
}
static void init_wedge_master_masks() {
int i, j;
const int w = MASK_MASTER_SIZE;
const int h = MASK_MASTER_SIZE;
const int stride = MASK_MASTER_STRIDE;
// Note: index [0] stores the masters, and [1] its complement.
#if USE_PRECOMPUTED_WEDGE_MASK
// Generate prototype by shifting the masters
int shift = h / 4;
for (i = 0; i < h; i += 2) {
shift_copy(wedge_master_oblique_even,
&wedge_mask_obl[0][WEDGE_OBLIQUE63][i * stride], shift,
MASK_MASTER_SIZE);
shift--;
shift_copy(wedge_master_oblique_odd,
&wedge_mask_obl[0][WEDGE_OBLIQUE63][(i + 1) * stride], shift,
MASK_MASTER_SIZE);
memcpy(&wedge_mask_obl[0][WEDGE_VERTICAL][i * stride],
wedge_master_vertical,
MASK_MASTER_SIZE * sizeof(wedge_master_vertical[0]));
memcpy(&wedge_mask_obl[0][WEDGE_VERTICAL][(i + 1) * stride],
wedge_master_vertical,
MASK_MASTER_SIZE * sizeof(wedge_master_vertical[0]));
}
#else
static const double smoother_param = 2.85;
const int a[2] = { 2, 1 };
const double asqrt = sqrt(a[0] * a[0] + a[1] * a[1]);
for (i = 0; i < h; i++) {
for (j = 0; j < w; ++j) {
int x = (2 * j + 1 - w);
int y = (2 * i + 1 - h);
double d = (a[0] * x + a[1] * y) / asqrt;
const int msk = (int)rint((1.0 + tanh(d / smoother_param)) * 32);
wedge_mask_obl[0][WEDGE_OBLIQUE63][i * stride + j] = msk;
const int mskx = (int)rint((1.0 + tanh(x / smoother_param)) * 32);
wedge_mask_obl[0][WEDGE_VERTICAL][i * stride + j] = mskx;
}
}
#endif // USE_PRECOMPUTED_WEDGE_MASK
for (i = 0; i < h; ++i) {
for (j = 0; j < w; ++j) {
const int msk = wedge_mask_obl[0][WEDGE_OBLIQUE63][i * stride + j];
wedge_mask_obl[0][WEDGE_OBLIQUE27][j * stride + i] = msk;
wedge_mask_obl[0][WEDGE_OBLIQUE117][i * stride + w - 1 - j] =
wedge_mask_obl[0][WEDGE_OBLIQUE153][(w - 1 - j) * stride + i] =
(1 << WEDGE_WEIGHT_BITS) - msk;
wedge_mask_obl[1][WEDGE_OBLIQUE63][i * stride + j] =
wedge_mask_obl[1][WEDGE_OBLIQUE27][j * stride + i] =
(1 << WEDGE_WEIGHT_BITS) - msk;
wedge_mask_obl[1][WEDGE_OBLIQUE117][i * stride + w - 1 - j] =
wedge_mask_obl[1][WEDGE_OBLIQUE153][(w - 1 - j) * stride + i] = msk;
const int mskx = wedge_mask_obl[0][WEDGE_VERTICAL][i * stride + j];
wedge_mask_obl[0][WEDGE_HORIZONTAL][j * stride + i] = mskx;
wedge_mask_obl[1][WEDGE_VERTICAL][i * stride + j] =
wedge_mask_obl[1][WEDGE_HORIZONTAL][j * stride + i] =
(1 << WEDGE_WEIGHT_BITS) - mskx;
}
}
}
#if !USE_PRECOMPUTED_WEDGE_SIGN
// If the signs for the wedges for various blocksizes are
// inconsistent flip the sign flag. Do it only once for every
// wedge codebook.
static void init_wedge_signs() {
BLOCK_SIZE sb_type;
memset(wedge_signflip_lookup, 0, sizeof(wedge_signflip_lookup));
for (sb_type = BLOCK_4X4; sb_type < BLOCK_SIZES_ALL; ++sb_type) {
const int bw = block_size_wide[sb_type];
const int bh = block_size_high[sb_type];
const wedge_params_type wedge_params = av1_wedge_params_lookup[sb_type];
const int wbits = wedge_params.bits;
const int wtypes = 1 << wbits;
int i, w;
if (wbits) {
for (w = 0; w < wtypes; ++w) {
// Get the mask master, i.e. index [0]
const uint8_t *mask = get_wedge_mask_inplace(w, 0, sb_type);
int avg = 0;
for (i = 0; i < bw; ++i) avg += mask[i];
for (i = 1; i < bh; ++i) avg += mask[i * MASK_MASTER_STRIDE];
avg = (avg + (bw + bh - 1) / 2) / (bw + bh - 1);
// Default sign of this wedge is 1 if the average < 32, 0 otherwise.
// If default sign is 1:
// If sign requested is 0, we need to flip the sign and return
// the complement i.e. index [1] instead. If sign requested is 1
// we need to flip the sign and return index [0] instead.
// If default sign is 0:
// If sign requested is 0, we need to return index [0] the master
// if sign requested is 1, we need to return the complement index
// [1] instead.
wedge_params.signflip[w] = (avg < 32);
}
}
}
}
#endif // !USE_PRECOMPUTED_WEDGE_SIGN
static void init_wedge_masks() {
uint8_t *dst = wedge_mask_buf;
BLOCK_SIZE bsize;
memset(wedge_masks, 0, sizeof(wedge_masks));
for (bsize = BLOCK_4X4; bsize < BLOCK_SIZES_ALL; ++bsize) {
const uint8_t *mask;
const int bw = block_size_wide[bsize];
const int bh = block_size_high[bsize];
const wedge_params_type *wedge_params = &av1_wedge_params_lookup[bsize];
const int wbits = wedge_params->bits;
if (wbits == 0 || wedge_params->codebook == NULL) continue;
const int wtypes = 1 << wbits;
int w;
for (w = 0; w < wtypes; ++w) {
mask = get_wedge_mask_inplace(w, 0, bsize);
aom_convolve_copy(mask, MASK_MASTER_STRIDE, dst, bw, bw, bh);
wedge_params->masks[0][w] = dst;
dst += bw * bh;
mask = get_wedge_mask_inplace(w, 1, bsize);
aom_convolve_copy(mask, MASK_MASTER_STRIDE, dst, bw, bw, bh);
wedge_params->masks[1][w] = dst;
dst += bw * bh;
}
assert(sizeof(wedge_mask_buf) >= (size_t)(dst - wedge_mask_buf));
}
}
// Equation of line: f(x, y) = a[0]*(x - a[2]*w/8) + a[1]*(y - a[3]*h/8) = 0
void av1_init_wedge_masks() {
init_wedge_master_masks();
#if !USE_PRECOMPUTED_WEDGE_SIGN
init_wedge_signs();
#endif // !USE_PRECOMPUTED_WEDGE_SIGN
init_wedge_masks();
}
void av1_dist_wtd_comp_weight_assign(const AV1_COMMON *cm,
const MB_MODE_INFO *mbmi, int order_idx,
int *fwd_offset, int *bck_offset,
int *use_dist_wtd_comp_avg,
int is_compound) {
assert(fwd_offset != NULL && bck_offset != NULL);
#if CONFIG_OPTFLOW_REFINEMENT && OPFL_DISTWTD_AVG
if (!is_compound || (mbmi->compound_idx && mbmi->mode <= NEW_NEWMV)) {
#else
if (!is_compound || mbmi->compound_idx) {
#endif
*use_dist_wtd_comp_avg = 0;
return;
}
*use_dist_wtd_comp_avg = 1;
const RefCntBuffer *const bck_buf = get_ref_frame_buf(cm, mbmi->ref_frame[0]);
const RefCntBuffer *const fwd_buf = get_ref_frame_buf(cm, mbmi->ref_frame[1]);
const int cur_frame_index = cm->cur_frame->order_hint;
int bck_frame_index = 0, fwd_frame_index = 0;
if (bck_buf != NULL) bck_frame_index = bck_buf->order_hint;
if (fwd_buf != NULL) fwd_frame_index = fwd_buf->order_hint;
int d0 = clamp(abs(get_relative_dist(&cm->seq_params.order_hint_info,
fwd_frame_index, cur_frame_index)),
0, MAX_FRAME_DISTANCE);
int d1 = clamp(abs(get_relative_dist(&cm->seq_params.order_hint_info,
cur_frame_index, bck_frame_index)),
0, MAX_FRAME_DISTANCE);
const int order = d0 <= d1;
if (d0 == 0 || d1 == 0) {
*fwd_offset = quant_dist_lookup_table[order_idx][3][order];
*bck_offset = quant_dist_lookup_table[order_idx][3][1 - order];
return;
}
#if CONFIG_OPTFLOW_REFINEMENT && OPFL_DISTWTD_AVG
// Typically in COMPOUND_DISTWTD, when d0 and d1 are equal, weights are still
// chosen to be different (7/16 for ref1 and 9/16 for ref0) because the case
// where equal weights are applied can be signaled in COMPOUND_AVERAGE
// anyway. However, in CONFIG_OPTFLOW_REFINEMENT we always apply
// COMPOUND_DISTWTD without signaling other compound types, so d0 == d1
// is handled as a special case
if (mbmi->mode > NEW_NEWMV && d0 == d1) {
*fwd_offset = 8;
*bck_offset = 8;
return;
}
#endif // CONFIG_OPTFLOW_REFINEMENT
int i;
for (i = 0; i < 3; ++i) {
int c0 = quant_dist_weight[i][order];
int c1 = quant_dist_weight[i][!order];
int d0_c0 = d0 * c0;
int d1_c1 = d1 * c1;
if ((d0 > d1 && d0_c0 < d1_c1) || (d0 <= d1 && d0_c0 > d1_c1)) break;
}
*fwd_offset = quant_dist_lookup_table[order_idx][i][order];
*bck_offset = quant_dist_lookup_table[order_idx][i][1 - order];
}
void av1_setup_dst_planes(struct macroblockd_plane *planes,
const YV12_BUFFER_CONFIG *src, int mi_row, int mi_col,
const int plane_start, const int plane_end,
const CHROMA_REF_INFO *chr_ref_info) {
// We use AOMMIN(num_planes, MAX_MB_PLANE) instead of num_planes to quiet
// the static analysis warnings.
for (int i = plane_start; i < AOMMIN(plane_end, MAX_MB_PLANE); ++i) {
struct macroblockd_plane *const pd = &planes[i];
const int is_uv = i > 0;
setup_pred_plane(&pd->dst, src->buffers[i], src->crop_widths[is_uv],
src->crop_heights[is_uv], src->strides[is_uv], mi_row,
mi_col, NULL, pd->subsampling_x, pd->subsampling_y, is_uv,
chr_ref_info);
}
}
void av1_setup_pre_planes(MACROBLOCKD *xd, int idx,
const YV12_BUFFER_CONFIG *src, int mi_row, int mi_col,
const struct scale_factors *sf, const int num_planes,
const CHROMA_REF_INFO *chr_ref_info) {
if (src != NULL) {
// We use AOMMIN(num_planes, MAX_MB_PLANE) instead of num_planes to
// quiet the static analysis warnings.
for (int i = 0; i < AOMMIN(num_planes, MAX_MB_PLANE); ++i) {
struct macroblockd_plane *const pd = &xd->plane[i];
const int is_uv = i > 0;
setup_pred_plane(&pd->pre[idx], src->buffers[i], src->crop_widths[is_uv],
src->crop_heights[is_uv], src->strides[is_uv], mi_row,
mi_col, sf, pd->subsampling_x, pd->subsampling_y, is_uv,
chr_ref_info);
}
}
}
// obmc_mask_N[overlap_position]
static const uint8_t obmc_mask_1[1] = { 64 };
DECLARE_ALIGNED(2, static const uint8_t, obmc_mask_2[2]) = { 45, 64 };
DECLARE_ALIGNED(4, static const uint8_t, obmc_mask_4[4]) = { 39, 50, 59, 64 };
static const uint8_t obmc_mask_8[8] = { 36, 42, 48, 53, 57, 61, 64, 64 };
static const uint8_t obmc_mask_16[16] = { 34, 37, 40, 43, 46, 49, 52, 54,
56, 58, 60, 61, 64, 64, 64, 64 };
static const uint8_t obmc_mask_32[32] = { 33, 35, 36, 38, 40, 41, 43, 44,
45, 47, 48, 50, 51, 52, 53, 55,
56, 57, 58, 59, 60, 60, 61, 62,
64, 64, 64, 64, 64, 64, 64, 64 };
static const uint8_t obmc_mask_64[64] = {
33, 34, 35, 35, 36, 37, 38, 39, 40, 40, 41, 42, 43, 44, 44, 44,
45, 46, 47, 47, 48, 49, 50, 51, 51, 51, 52, 52, 53, 54, 55, 56,
56, 56, 57, 57, 58, 58, 59, 60, 60, 60, 60, 60, 61, 62, 62, 62,
62, 62, 63, 63, 63, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
};
const uint8_t *av1_get_obmc_mask(int length) {
switch (length) {
case 1: return obmc_mask_1;
case 2: return obmc_mask_2;
case 4: return obmc_mask_4;
case 8: return obmc_mask_8;
case 16: return obmc_mask_16;
case 32: return obmc_mask_32;
case 64: return obmc_mask_64;
default: assert(0); return NULL;
}
}
static INLINE void increment_int_ptr(MACROBLOCKD *xd, int rel_mi_rc,
uint8_t mi_hw, MB_MODE_INFO *mi,
void *fun_ctxt, const int num_planes) {
(void)xd;
(void)rel_mi_rc;
(void)mi_hw;
(void)mi;
++*(int *)fun_ctxt;
(void)num_planes;
}
void av1_count_overlappable_neighbors(const AV1_COMMON *cm, MACROBLOCKD *xd) {
MB_MODE_INFO *mbmi = xd->mi[0];
mbmi->overlappable_neighbors[0] = 0;
mbmi->overlappable_neighbors[1] = 0;
#if CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
if (block_size_wide[mbmi->sb_type] > 4)
foreach_overlappable_nb_above(cm, xd, INT_MAX, increment_int_ptr,
&mbmi->overlappable_neighbors[0]);
else
foreach_inter_nb_above(xd, &mbmi->overlappable_neighbors[0]);
if (block_size_high[mbmi->sb_type] > 4)
foreach_overlappable_nb_left(cm, xd, INT_MAX, increment_int_ptr,
&mbmi->overlappable_neighbors[1]);
else
foreach_inter_nb_left(xd, &mbmi->overlappable_neighbors[1]);
#else
if (!is_motion_variation_allowed_bsize(mbmi->sb_type, xd->mi_row, xd->mi_col))
return;
foreach_overlappable_nb_above(cm, xd, INT_MAX, increment_int_ptr,
&mbmi->overlappable_neighbors[0]);
foreach_overlappable_nb_left(cm, xd, INT_MAX, increment_int_ptr,
&mbmi->overlappable_neighbors[1]);
#endif // CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
}
// HW does not support < 4x4 prediction. To limit the bandwidth requirement, if
// block-size of current plane is smaller than 8x8, always only blend with the
// left neighbor(s) (skip blending with the above side).
#define DISABLE_CHROMA_U8X8_OBMC 0 // 0: one-sided obmc; 1: disable
int av1_skip_u4x4_pred_in_obmc(int mi_row, int mi_col, BLOCK_SIZE bsize,
const struct macroblockd_plane *pd, int dir) {
(void)mi_row;
(void)mi_col;
assert(is_motion_variation_allowed_bsize(bsize, mi_row, mi_col));
const BLOCK_SIZE bsize_plane =
get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y);
switch (bsize_plane) {
#if DISABLE_CHROMA_U8X8_OBMC
case BLOCK_4X4:
case BLOCK_8X4:
case BLOCK_4X8: return 1; break;
#else
case BLOCK_4X4:
case BLOCK_8X4:
case BLOCK_4X8: return dir == 0; break;
#endif
default: return 0;
}
}
void av1_modify_neighbor_predictor_for_obmc(MB_MODE_INFO *mbmi) {
mbmi->ref_frame[1] = NONE_FRAME;
mbmi->interinter_comp.type = COMPOUND_AVERAGE;
return;
}
struct obmc_inter_pred_ctxt {
uint8_t **adjacent;
int *adjacent_stride;
};
static INLINE void build_obmc_inter_pred_above(MACROBLOCKD *xd, int rel_mi_col,
uint8_t above_mi_width,
MB_MODE_INFO *above_mi,
void *fun_ctxt,
const int num_planes) {
(void)above_mi;
struct obmc_inter_pred_ctxt *ctxt = (struct obmc_inter_pred_ctxt *)fun_ctxt;
const BLOCK_SIZE bsize = xd->mi[0]->sb_type;
const int is_hbd = is_cur_buf_hbd(xd);
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
const int overlap =
AOMMIN(block_size_high[bsize], block_size_high[BLOCK_64X64]) >> 1;
for (int plane = 0; plane < num_planes; ++plane) {
const struct macroblockd_plane *pd = &xd->plane[plane];
const int bw = (above_mi_width * MI_SIZE) >> pd->subsampling_x;
const int bh = overlap >> pd->subsampling_y;
const int plane_col = (rel_mi_col * MI_SIZE) >> pd->subsampling_x;
if (av1_skip_u4x4_pred_in_obmc(mi_row, mi_col, bsize, pd, 0)) continue;
const int dst_stride = pd->dst.stride;
uint8_t *const dst = &pd->dst.buf[plane_col];
const int tmp_stride = ctxt->adjacent_stride[plane];
const uint8_t *const tmp = &ctxt->adjacent[plane][plane_col];
const uint8_t *const mask = av1_get_obmc_mask(bh);
if (is_hbd)
aom_highbd_blend_a64_vmask(dst, dst_stride, dst, dst_stride, tmp,
tmp_stride, mask, bw, bh, xd->bd);
else
aom_blend_a64_vmask(dst, dst_stride, dst, dst_stride, tmp, tmp_stride,
mask, bw, bh);
}
}
static INLINE void build_obmc_inter_pred_left(MACROBLOCKD *xd, int rel_mi_row,
uint8_t left_mi_height,
MB_MODE_INFO *left_mi,
void *fun_ctxt,
const int num_planes) {
(void)left_mi;
struct obmc_inter_pred_ctxt *ctxt = (struct obmc_inter_pred_ctxt *)fun_ctxt;
const BLOCK_SIZE bsize = xd->mi[0]->sb_type;
const int overlap =
AOMMIN(block_size_wide[bsize], block_size_wide[BLOCK_64X64]) >> 1;
const int is_hbd = is_cur_buf_hbd(xd);
const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2);
const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2);
for (int plane = 0; plane < num_planes; ++plane) {
const struct macroblockd_plane *pd = &xd->plane[plane];
const int bw = overlap >> pd->subsampling_x;
const int bh = (left_mi_height * MI_SIZE) >> pd->subsampling_y;
const int plane_row = (rel_mi_row * MI_SIZE) >> pd->subsampling_y;
if (av1_skip_u4x4_pred_in_obmc(mi_row, mi_col, bsize, pd, 1)) continue;
const int dst_stride = pd->dst.stride;
uint8_t *const dst = &pd->dst.buf[plane_row * dst_stride];
const int tmp_stride = ctxt->adjacent_stride[plane];
const uint8_t *const tmp = &ctxt->adjacent[plane][plane_row * tmp_stride];
const uint8_t *const mask = av1_get_obmc_mask(bw);
if (is_hbd)
aom_highbd_blend_a64_hmask(dst, dst_stride, dst, dst_stride, tmp,
tmp_stride, mask, bw, bh, xd->bd);
else
aom_blend_a64_hmask(dst, dst_stride, dst, dst_stride, tmp, tmp_stride,
mask, bw, bh);
}
}
// This function combines motion compensated predictions that are generated
// by top/left neighboring blocks' inter predictors with the regular inter
// prediction. We assume the original prediction (bmc) is stored in
// xd->plane[].dst.buf
void av1_build_obmc_inter_prediction(const AV1_COMMON *cm, MACROBLOCKD *xd,
uint8_t *above[MAX_MB_PLANE],
int above_stride[MAX_MB_PLANE],
uint8_t *left[MAX_MB_PLANE],
int left_stride[MAX_MB_PLANE]) {
const BLOCK_SIZE bsize = xd->mi[0]->sb_type;
// handle above row
struct obmc_inter_pred_ctxt ctxt_above = { above, above_stride };
foreach_overlappable_nb_above(cm, xd,
max_neighbor_obmc[mi_size_wide_log2[bsize]],
build_obmc_inter_pred_above, &ctxt_above);
// handle left column
struct obmc_inter_pred_ctxt ctxt_left = { left, left_stride };
foreach_overlappable_nb_left(cm, xd,
max_neighbor_obmc[mi_size_high_log2[bsize]],
build_obmc_inter_pred_left, &ctxt_left);
}
void av1_setup_build_prediction_by_above_pred(
MACROBLOCKD *xd, int rel_mi_col, uint8_t above_mi_width,
MB_MODE_INFO *above_mbmi, struct build_prediction_ctxt *ctxt,
const int num_planes) {
const int above_mi_col = xd->mi_col + rel_mi_col;
av1_modify_neighbor_predictor_for_obmc(above_mbmi);
for (int j = 0; j < num_planes; ++j) {
struct macroblockd_plane *const pd = &xd->plane[j];
setup_pred_plane(&pd->dst, ctxt->tmp_buf[j], ctxt->tmp_width[j],
ctxt->tmp_height[j], ctxt->tmp_stride[j], 0, rel_mi_col,
NULL, pd->subsampling_x, pd->subsampling_y, j > 0, NULL);
}
const int num_refs = 1 + has_second_ref(above_mbmi);
for (int ref = 0; ref < num_refs; ++ref) {
const MV_REFERENCE_FRAME frame = above_mbmi->ref_frame[ref];
const RefCntBuffer *const ref_buf = get_ref_frame_buf(ctxt->cm, frame);
const struct scale_factors *const sf =
get_ref_scale_factors_const(ctxt->cm, frame);
xd->block_ref_scale_factors[ref] = sf;
if ((!av1_is_valid_scale(sf)))
aom_internal_error(xd->error_info, AOM_CODEC_UNSUP_BITSTREAM,
"Reference frame has invalid dimensions");
av1_setup_pre_planes(xd, ref, &ref_buf->buf, xd->mi_row, above_mi_col, sf,
num_planes, NULL);
}
xd->mb_to_left_edge = 8 * MI_SIZE * (-above_mi_col);
xd->mb_to_right_edge = ctxt->mb_to_far_edge +
(xd->n4_w - rel_mi_col - above_mi_width) * MI_SIZE * 8;
}
void av1_setup_build_prediction_by_left_pred(MACROBLOCKD *xd, int rel_mi_row,
uint8_t left_mi_height,
MB_MODE_INFO *left_mbmi,
struct build_prediction_ctxt *ctxt,
const int num_planes) {
const int left_mi_row = xd->mi_row + rel_mi_row;
av1_modify_neighbor_predictor_for_obmc(left_mbmi);
for (int j = 0; j < num_planes; ++j) {
struct macroblockd_plane *const pd = &xd->plane[j];
setup_pred_plane(&pd->dst, ctxt->tmp_buf[j], ctxt->tmp_width[j],
ctxt->tmp_height[j], ctxt->tmp_stride[j], rel_mi_row, 0,
NULL, pd->subsampling_x, pd->subsampling_y, j > 0, NULL);
}
const int num_refs = 1 + has_second_ref(left_mbmi);
for (int ref = 0; ref < num_refs; ++ref) {
const MV_REFERENCE_FRAME frame = left_mbmi->ref_frame[ref];
const RefCntBuffer *const ref_buf = get_ref_frame_buf(ctxt->cm, frame);
const struct scale_factors *const ref_scale_factors =
get_ref_scale_factors_const(ctxt->cm, frame);
xd->block_ref_scale_factors[ref] = ref_scale_factors;
if ((!av1_is_valid_scale(ref_scale_factors)))
aom_internal_error(xd->error_info, AOM_CODEC_UNSUP_BITSTREAM,
"Reference frame has invalid dimensions");
av1_setup_pre_planes(xd, ref, &ref_buf->buf, left_mi_row, xd->mi_col,
ref_scale_factors, num_planes, NULL);
}
xd->mb_to_top_edge = 8 * MI_SIZE * (-left_mi_row);
xd->mb_to_bottom_edge =
ctxt->mb_to_far_edge +
(xd->n4_h - rel_mi_row - left_mi_height) * MI_SIZE * 8;
}
/* clang-format off */
static const uint8_t ii_weights1d[MAX_SB_SIZE] = {
60, 58, 56, 54, 52, 50, 48, 47, 45, 44, 42, 41, 39, 38, 37, 35, 34, 33, 32,
31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 22, 21, 20, 19, 19, 18, 18, 17, 16,
16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 11, 11, 10, 10, 10, 9, 9, 9, 8,
8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4,
4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
};
static uint8_t ii_size_scales[BLOCK_SIZES_ALL] = {
32, 16, 16, 16, 8, 8, 8, 4,
4, 4, 2, 2, 2, 1, 1, 1,
8, 8, 4, 4, 2, 2,
#if CONFIG_FLEX_PARTITION
8, 8, 4, 4, 8, 8,
#endif // CONFIG_FLEX_PARTITION
};
/* clang-format on */
static void build_smooth_interintra_mask(uint8_t *mask, int stride,
BLOCK_SIZE plane_bsize,
INTERINTRA_MODE mode) {
int i, j;
const int bw = block_size_wide[plane_bsize];
const int bh = block_size_high[plane_bsize];
const int size_scale = ii_size_scales[plane_bsize];
switch (mode) {
case II_V_PRED:
for (i = 0; i < bh; ++i) {
memset(mask, ii_weights1d[i * size_scale], bw * sizeof(mask[0]));
mask += stride;
}
break;
case II_H_PRED:
for (i = 0; i < bh; ++i) {
for (j = 0; j < bw; ++j) mask[j] = ii_weights1d[j * size_scale];
mask += stride;
}
break;
case II_SMOOTH_PRED:
for (i = 0; i < bh; ++i) {
for (j = 0; j < bw; ++j)
mask[j] = ii_weights1d[(i < j ? i : j) * size_scale];
mask += stride;
}
break;
case II_DC_PRED:
#if CONFIG_ILLUM_MCOMP
case II_ILLUM_MCOMP_PRED:
#endif // CONFIG_ILLUM_MCOMP
default:
for (i = 0; i < bh; ++i) {
memset(mask, 32, bw * sizeof(mask[0]));
mask += stride;
}
break;
}
}
#if CONFIG_ILLUM_MCOMP
// Only analyze the 4 pixel border around the inter/intra predictors.
#define ILLUM_MCOMP_BORDER 4
// Toggle between 'old' method (using difference of averages) and
// 'new' method (linear regression).
#define ILLUM_MCOMP_OLD 0
#if ILLUM_MCOMP_OLD
// Defines a function that can be used to obtain the average of the
// extended region.
#define ILLUM_MCOMP_COMPUTE_DC(INT_TYPE, suffix) \
static int illum_mcomp_compute_dc_##suffix(const INT_TYPE *pred, int stride, \
int bw, int bh) { \
const int border = ILLUM_MCOMP_BORDER; \
int sum = 0; \
for (int i = -border; i < 0; ++i) { \
for (int j = -border; j < bw; ++j) { \
sum += pred[i * stride + j]; \
} \
} \
for (int i = 0; i < bh; ++i) { \
for (int j = -border; j < 0; ++j) { \
sum += pred[i * stride + j]; \
} \
} \
/* Add "0.5" so we round "half-up" instead of "down". */ \
const int count = border * (border + bw) + bh * border; \
int expected_dc = (sum + (count >> 1)) / count; \
return expected_dc; \
}
ILLUM_MCOMP_COMPUTE_DC(uint8_t, lowbd);
ILLUM_MCOMP_COMPUTE_DC(uint16_t, highbd);
#endif // ILLUM_MCOMP_OLD
#define ILLUM_MCOMP_PREC_BITS 8
#define ILLUM_MCOMP_PREC (1 << ILLUM_MCOMP_PREC_BITS)
static void illum_mcomp_linear_model_lowbd(const uint8_t *inter_pred,
int inter_stride,
const uint8_t *intra_pred,
int intra_stride, int bw, int bh,
int bd, int *alpha, int *beta) {
assert(bd == 8);
#if ILLUM_MCOMP_OLD
*alpha = 1 << ILLUM_MCOMP_PREC_BITS;
int intra_dc = illum_mcomp_compute_dc_lowbd(intra_pred, intra_stride, bw, bh);
int inter_dc = illum_mcomp_compute_dc_lowbd(inter_pred, inter_stride, bw, bh);
*beta = (intra_dc - inter_dc) << ILLUM_MCOMP_PREC_BITS;
return;
#endif // ILLUM_MCOMP_OLD
int64_t n = 0;
int64_t sx2 = 0;
int64_t sx = 0;
int64_t sxy = 0;
int64_t sy = 0;
const int border = ILLUM_MCOMP_BORDER;
for (int i = -border; i < 0; ++i) {
for (int j = -border; j < bw; ++j) {
const int x = inter_pred[i * inter_stride + j];
const int y = intra_pred[i * intra_stride + j];
sx += x;
sy += y;
sx2 += x * x;
sxy += x * y;
n++;
}
}
for (int i = 0; i < bh; ++i) {
for (int j = -border; j < 0; ++j) {
const int x = inter_pred[i * inter_stride + j];
const int y = intra_pred[i * intra_stride + j];
sx += x;
sy += y;
sx2 += x * x;
sxy += x * y;
n++;
}
}
const int64_t Pa = (n * sxy - sx * sy) * ILLUM_MCOMP_PREC;
const int64_t Pb = (-sx * sxy + sx2 * sy) * ILLUM_MCOMP_PREC;
const int64_t D = sx2 * n - sx * sx;
int64_t a;
int64_t b;
if (D != 0) {
a = DIVIDE_AND_ROUND_SIGNED(Pa, D);
b = DIVIDE_AND_ROUND_SIGNED(Pb, D);
} else {
// Set to extreme values.
a = ILLUM_MCOMP_PREC * 4;
const int sign = (Pb < 0) ? -1 : 1;
b = sign * (1 << (bd - 2)) * ILLUM_MCOMP_PREC;
}
// Clamp to reasonable range
*alpha = (int)clamp64(a, ILLUM_MCOMP_PREC / 4, ILLUM_MCOMP_PREC * 4);
*beta = (int)clamp64(b, -(1 << (bd - 2)) * ILLUM_MCOMP_PREC,
(1 << (bd - 2)) * ILLUM_MCOMP_PREC);
}
static void illum_mcomp_linear_model_highbd(const uint16_t *inter_pred,
int inter_stride,
const uint16_t *intra_pred,
int intra_stride, int bw, int bh,
int bd, int *alpha, int *beta) {
assert(bd > 8);
#if ILLUM_MCOMP_OLD
*alpha = 1 << ILLUM_MCOMP_PREC_BITS;
int intra_dc =
illum_mcomp_compute_dc_highbd(intra_pred, intra_stride, bw, bh);
int inter_dc =
illum_mcomp_compute_dc_highbd(inter_pred, inter_stride, bw, bh);
*beta = (intra_dc - inter_dc) << ILLUM_MCOMP_PREC_BITS;
return;
#endif // ILLUM_MCOMP_OLD
int64_t n = 0;
int64_t sx2 = 0;
int64_t sx = 0;
int64_t sxy = 0;
int64_t sy = 0;
const int border = ILLUM_MCOMP_BORDER;
for (int i = -border; i < 0; ++i) {
for (int j = -border; j < bw; ++j) {
const int x = inter_pred[i * inter_stride + j];
const int y = intra_pred[i * intra_stride + j];
sx += x;
sy += y;
sx2 += x * x;
sxy += x * y;
n++;
}
}
for (int i = 0; i < bh; ++i) {
for (int j = -border; j < 0; ++j) {
const int x = inter_pred[i * inter_stride + j];
const int y = intra_pred[i * intra_stride + j];
sx += x;
sy += y;
sx2 += x * x;
sxy += x * y;
n++;
}
}
const int64_t Pa = (n * sxy - sx * sy) * ILLUM_MCOMP_PREC;
const int64_t Pb = (-sx * sxy + sx2 * sy) * ILLUM_MCOMP_PREC;
const int64_t D = sx2 * n - sx * sx;
int64_t a;
int64_t b;
if (D != 0) {
a = DIVIDE_AND_ROUND_SIGNED(Pa, D);
b = DIVIDE_AND_ROUND_SIGNED(Pb, D);
} else {
// Set to extreme values.
a = ILLUM_MCOMP_PREC * 4;
const int sign = (Pb < 0) ? -1 : 1;
b = sign * (1 << (bd - 2)) * ILLUM_MCOMP_PREC;
}
// Clamp to reasonable range
*alpha = (int)clamp64(a, ILLUM_MCOMP_PREC / 4, ILLUM_MCOMP_PREC * 4);
*beta = (int)clamp64(b, -(1 << (bd - 2)) * ILLUM_MCOMP_PREC,
(1 << (bd - 2)) * ILLUM_MCOMP_PREC);
}
static void illum_combine_interintra(
int8_t use_wedge_interintra, int8_t wedge_index, int8_t wedge_sign,
BLOCK_SIZE bsize, BLOCK_SIZE plane_bsize, uint8_t *comp_pred,
int comp_stride, const uint8_t *inter_pred, int inter_stride,
const uint8_t *intra_pred, int intra_stride, int border) {
assert(border >= ILLUM_MCOMP_BORDER);
(void)border;
const int bw = block_size_wide[plane_bsize];
const int bh = block_size_high[plane_bsize];
// Compute the linearly projected predictor.
uint8_t *projected = comp_pred;
int projected_stride = comp_stride;
const bool wedge_case =
use_wedge_interintra && is_interintra_wedge_used(bsize);
if (wedge_case) {
projected = aom_memalign(64, bw * bh * sizeof(*projected));
projected_stride = bw;
}
int alpha, beta;
illum_mcomp_linear_model_lowbd(inter_pred, inter_stride, intra_pred,
intra_stride, bw, bh, 8, &alpha, &beta);
for (int i = 0; i < bh; ++i) {
for (int j = 0; j < bw; ++j) {
int32_t r = inter_pred[i * inter_stride + j];
r *= alpha;
r += beta;
r >>= ILLUM_MCOMP_PREC_BITS;
projected[i * projected_stride + j] = clip_pixel_highbd(r, 8);
}
}
// If this is a wedge case, blend the intra-predictor.
if (wedge_case) {
const uint8_t *mask =
av1_get_contiguous_soft_mask(wedge_index, wedge_sign, bsize);
const int subw = 2 * mi_size_wide[bsize] == bw;
const int subh = 2 * mi_size_high[bsize] == bh;
aom_blend_a64_mask(comp_pred, comp_stride, intra_pred, intra_stride,
projected, projected_stride, mask,
block_size_wide[bsize], bw, bh, subw, subh);
aom_free(projected);
}
}
static void illum_combine_interintra_highbd(
int8_t use_wedge_interintra, int8_t wedge_index, int8_t wedge_sign,
BLOCK_SIZE bsize, BLOCK_SIZE plane_bsize, uint8_t *comp_pred8,
int comp_stride, const uint8_t *inter_pred8, int inter_stride,
const uint8_t *intra_pred8, int intra_stride, int bd, int border) {
assert(border >= ILLUM_MCOMP_BORDER);
(void)border;
const int bw = block_size_wide[plane_bsize];
const int bh = block_size_high[plane_bsize];
uint16_t *projected = CONVERT_TO_SHORTPTR(comp_pred8);
int projected_stride = comp_stride;
const bool wedge_case =
use_wedge_interintra && is_interintra_wedge_used(bsize);
uint16_t *inter_pred = CONVERT_TO_SHORTPTR(inter_pred8);
uint16_t *intra_pred = CONVERT_TO_SHORTPTR(intra_pred8);
if (wedge_case) {
projected = aom_memalign(64, bw * bh * sizeof(*projected));
projected_stride = bw;
}
int alpha, beta;
illum_mcomp_linear_model_highbd(inter_pred, inter_stride, intra_pred,
intra_stride, bw, bh, bd, &alpha, &beta);
for (int i = 0; i < bh; ++i) {
for (int j = 0; j < bw; ++j) {
int32_t r = inter_pred[i * inter_stride + j];
r *= alpha;
r += beta;
r >>= ILLUM_MCOMP_PREC_BITS;
projected[i * projected_stride + j] = clip_pixel_highbd(r, bd);
}
}
if (wedge_case) {
const uint8_t *mask =
av1_get_contiguous_soft_mask(wedge_index, wedge_sign, bsize);
const int subh = 2 * mi_size_high[bsize] == bh;
const int subw = 2 * mi_size_wide[bsize] == bw;
aom_highbd_blend_a64_mask(comp_pred8, comp_stride, intra_pred8,
intra_stride, CONVERT_TO_BYTEPTR(projected),
projected_stride, mask, block_size_wide[bsize],
bw, bh, subw, subh, bd);
aom_free(projected);
}
}
#endif // CONFIG_ILLUM_MCOMP
static void combine_interintra(INTERINTRA_MODE mode,
int8_t use_wedge_interintra, int8_t wedge_index,
int8_t wedge_sign, BLOCK_SIZE bsize,
BLOCK_SIZE plane_bsize, int plane,
uint8_t *comppred, int compstride,
const uint8_t *interpred, int interstride,
const uint8_t *intrapred, int intrastride,
int border, bool is_ii_ml_mode) {
assert(plane_bsize < BLOCK_SIZES_ALL);
(void)plane;
(void)border;
(void)is_ii_ml_mode;
#if CONFIG_ILLUM_MCOMP
if (mode == II_ILLUM_MCOMP_PRED) {
illum_combine_interintra(use_wedge_interintra, wedge_index, wedge_sign,
bsize, plane_bsize, comppred, compstride,
interpred, interstride, intrapred, intrastride,
border);
return;
}
#endif // CONFIG_ILLUM_MCOMP
#if CONFIG_INTERINTRA_ML
if (is_ii_ml_mode) {
assert(!use_wedge_interintra);
av1_combine_interintra_ml(mode, bsize, plane_bsize, plane, comppred,
compstride, interpred, interstride, intrapred,
intrastride, border);
return;
}
#endif // CONFIG_INTERINTRA_ML
const int bw = block_size_wide[plane_bsize];
const int bh = block_size_high[plane_bsize];
if (use_wedge_interintra) {
if (is_interintra_wedge_used(bsize)) {
const uint8_t *mask =
av1_get_contiguous_soft_mask(wedge_index, wedge_sign, bsize);
const int subw = 2 * mi_size_wide[bsize] == bw;
const int subh = 2 * mi_size_high[bsize] == bh;
aom_blend_a64_mask(comppred, compstride, intrapred, intrastride,
interpred, interstride, mask, block_size_wide[bsize],
bw, bh, subw, subh);
}
return;
}
uint8_t mask[MAX_SB_SQUARE];
build_smooth_interintra_mask(mask, bw, plane_bsize, mode);
aom_blend_a64_mask(comppred, compstride, intrapred, intrastride, interpred,
interstride, mask, bw, bw, bh, 0, 0);
}
static void combine_interintra_highbd(
INTERINTRA_MODE mode, int8_t use_wedge_interintra, int8_t wedge_index,
int8_t wedge_sign, BLOCK_SIZE bsize, BLOCK_SIZE plane_bsize, int plane,
uint8_t *comppred8, int compstride, const uint8_t *interpred8,
int interstride, const uint8_t *intrapred8, int intrastride, int bd,
int border, bool is_ii_ml_mode) {
assert(plane_bsize < BLOCK_SIZES_ALL);
(void)plane;
(void)border;
(void)is_ii_ml_mode;
#if CONFIG_ILLUM_MCOMP
if (mode == II_ILLUM_MCOMP_PRED) {
illum_combine_interintra_highbd(use_wedge_interintra, wedge_index,
wedge_sign, bsize, plane_bsize, comppred8,
compstride, interpred8, interstride,
intrapred8, intrastride, bd, border);
return;
}
#endif // CONFIG_ILLUM_MCOMP
#if CONFIG_INTERINTRA_ML
if (is_ii_ml_mode) {
assert(!use_wedge_interintra);
av1_combine_interintra_ml_highbd(mode, bsize, plane_bsize, plane, comppred8,
compstride, interpred8, interstride,
intrapred8, intrastride, bd, border);
return;
}
#endif // CONFIG_INTERINTRA_ML
const int bw = block_size_wide[plane_bsize];
const int bh = block_size_high[plane_bsize];
if (use_wedge_interintra) {
if (is_interintra_wedge_used(bsize)) {
const uint8_t *mask =
av1_get_contiguous_soft_mask(wedge_index, wedge_sign, bsize);
const int subh = 2 * mi_size_high[bsize] == bh;
const int subw = 2 * mi_size_wide[bsize] == bw;
aom_highbd_blend_a64_mask(comppred8, compstride, intrapred8, intrastride,
interpred8, interstride, mask,
block_size_wide[bsize], bw, bh, subw, subh, bd);
}
return;
}
uint8_t mask[MAX_SB_SQUARE];
build_smooth_interintra_mask(mask, bw, plane_bsize, mode);
aom_highbd_blend_a64_mask(comppred8, compstride, intrapred8, intrastride,
interpred8, interstride, mask, bw, bw, bh, 0, 0,
bd);
}
void av1_build_intra_predictors_for_interintra(
const AV1_COMMON *cm, MACROBLOCKD *xd, BLOCK_SIZE bsize, int plane,
const BUFFER_SET *ctx, uint8_t *dst, int dst_stride, int border) {
struct macroblockd_plane *const pd = &xd->plane[plane];
const int ssx = xd->plane[plane].subsampling_x;
const int ssy = xd->plane[plane].subsampling_y;
MB_MODE_INFO *mbmi = xd->mi[0];
const BLOCK_SIZE bsize_base =
plane ? mbmi->chroma_ref_info.bsize_base : bsize;
BLOCK_SIZE plane_bsize = get_plane_block_size(bsize_base, ssx, ssy);
#if CONFIG_DERIVED_INTRA_MODE
const int use_derived_mode = mbmi->use_derived_intra_mode[0];
const PREDICTION_MODE mode =
use_derived_mode ? av1_get_derived_intra_mode(xd, bsize, mbmi)
: interintra_to_intra_mode[mbmi->interintra_mode];
#else
const PREDICTION_MODE mode = interintra_to_intra_mode[mbmi->interintra_mode];
#endif
assert(mbmi->angle_delta[PLANE_TYPE_Y] == 0);
assert(mbmi->angle_delta[PLANE_TYPE_UV] == 0);
assert(mbmi->filter_intra_mode_info.use_filter_intra == 0);
assert(mbmi->use_intrabc == 0);
assert(plane_bsize < BLOCK_SIZES_ALL);
const TX_SIZE tx_size = max_txsize_rect_lookup[plane_bsize];
av1_predict_intra_block(
cm, xd, pd->width, pd->height, tx_size, mode, 0, 0, FILTER_INTRA_MODES,
#if CONFIG_ADAPT_FILTER_INTRA
ADAPT_FILTER_INTRA_MODES,
#endif
#if CONFIG_DERIVED_INTRA_MODE
use_derived_mode ? mbmi->derived_angle : 0,
#endif // CONFIG_DERIVED_INTRA_MODE
ctx->plane[plane], ctx->stride[plane], dst, dst_stride, 0, 0, plane);
if (border > 0) {
av1_extend_intra_border(ctx->plane[plane], ctx->stride[plane], dst,
dst_stride, av1_intra_top_available(xd, plane),
av1_intra_right_unavailable(xd, plane, tx_size),
av1_intra_left_available(xd, plane),
av1_intra_bottom_unavailable(xd, plane, tx_size),
xd->plane[plane].width, xd->plane[plane].height,
border, xd->bd, is_cur_buf_hbd(xd));
}
}
void av1_combine_interintra(MACROBLOCKD *xd, BLOCK_SIZE bsize, int plane,
const uint8_t *inter_pred, int inter_stride,
const uint8_t *intra_pred, int intra_stride,
int border) {
assert(border >= 0);
const INTERINTRA_MODE mode = xd->mi[0]->interintra_mode;
const int ssx = xd->plane[plane].subsampling_x;
const int ssy = xd->plane[plane].subsampling_y;
const BLOCK_SIZE bsize_base =
plane ? xd->mi[0]->chroma_ref_info.bsize_base : bsize;
const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize_base, ssx, ssy);
#if CONFIG_INTERINTRA_ML
const bool is_ii_ml_mode =
is_interintra_ml_supported(xd, xd->mi[0]->use_wedge_interintra);
#else
const bool is_ii_ml_mode = false;
#endif
if (is_cur_buf_hbd(xd)) {
combine_interintra_highbd(
mode, xd->mi[0]->use_wedge_interintra,
xd->mi[0]->interintra_wedge_index, INTERINTRA_WEDGE_SIGN, bsize,
plane_bsize, plane, xd->plane[plane].dst.buf,
xd->plane[plane].dst.stride, inter_pred, inter_stride, intra_pred,
intra_stride, xd->bd, border, is_ii_ml_mode);
return;
}
combine_interintra(mode, xd->mi[0]->use_wedge_interintra,
xd->mi[0]->interintra_wedge_index, INTERINTRA_WEDGE_SIGN,
bsize, plane_bsize, plane, xd->plane[plane].dst.buf,
xd->plane[plane].dst.stride, inter_pred, inter_stride,
intra_pred, intra_stride, border, is_ii_ml_mode);
}
void av1_alloc_buf_with_border(uint8_t **buf, int *buf_stride, int border,
bool is_hbd) {
const int border16 = border % 16 == 0 ? border : 16 * (1 + border / 16);
*buf_stride = MAX_SB_SIZE + border16;
assert(*buf_stride % 16 == 0);
const int intrapred_buf_size = *buf_stride * *buf_stride;
const int bytes_per_val = is_hbd ? sizeof(uint16_t) : sizeof(uint8_t);
*buf = aom_memalign(16, intrapred_buf_size * bytes_per_val);
// Offset past the border.
*buf += (border16 + border16 * *buf_stride) * bytes_per_val;
}
void av1_free_buf_with_border(uint8_t *buf, int buf_stride, int border,
bool is_hbd) {
const int border16 = border % 16 == 0 ? border : 16 * (1 + border / 16);
const int bytes_per_val = is_hbd ? sizeof(uint16_t) : sizeof(uint8_t);
aom_free(buf - (border16 + border16 * buf_stride) * bytes_per_val);
}
// build interintra_predictors for one plane
void av1_build_interintra_predictors_sbp(const AV1_COMMON *cm, MACROBLOCKD *xd,
uint8_t *pred, int stride,
const BUFFER_SET *ctx, int plane,
BLOCK_SIZE bsize, int border) {
assert(bsize < BLOCK_SIZES_ALL);
uint8_t *intrapred_buf;
int intrapred_stride;
av1_alloc_buf_with_border(&intrapred_buf, &intrapred_stride, border,
is_cur_buf_hbd(xd));
if (is_cur_buf_hbd(xd)) {
uint16_t *intrapredictor = (uint16_t *)intrapred_buf;
av1_build_intra_predictors_for_interintra(
cm, xd, bsize, plane, ctx, CONVERT_TO_BYTEPTR(intrapredictor),
intrapred_stride, border);
av1_combine_interintra(xd, bsize, plane, pred, stride,
CONVERT_TO_BYTEPTR(intrapredictor), intrapred_stride,
border);
} else {
av1_build_intra_predictors_for_interintra(
cm, xd, bsize, plane, ctx, intrapred_buf, intrapred_stride, border);
av1_combine_interintra(xd, bsize, plane, pred, stride, intrapred_buf,
intrapred_stride, border);
}
av1_free_buf_with_border(intrapred_buf, intrapred_stride, border,
is_cur_buf_hbd(xd));
}