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aomedia / avm / refs/heads/main / . / av1 / common / reconinter.h
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/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 3-Clause Clear License
* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
* License was not distributed with this source code in the LICENSE file, you
* can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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
* aomedia.org/license/patent-license/.
*/
#ifndef AOM_AV1_COMMON_RECONINTER_H_
#define AOM_AV1_COMMON_RECONINTER_H_
#include "av1/common/av1_common_int.h"
#include "av1/common/convolve.h"
#include "av1/common/filter.h"
#include "av1/common/warped_motion.h"
#include "aom/aom_integer.h"
#include "av1/encoder/block.h"
// Work out how many pixels off the edge of a reference frame we're allowed
// to go when forming an inter prediction.
// The outermost row/col of each referernce frame is extended by
// (AOM_BORDER_IN_PIXELS >> subsampling) pixels, but we need to keep
// at least AOM_INTERP_EXTEND pixels within that to account for filtering.
//
// We have to break this up into two macros to keep both clang-format and
// tools/lint-hunks.py happy.
#define AOM_LEFT_TOP_MARGIN_PX(subsampling) \
((AOM_BORDER_IN_PIXELS >> subsampling) - AOM_INTERP_EXTEND)
#define AOM_LEFT_TOP_MARGIN_SCALED(subsampling) \
(AOM_LEFT_TOP_MARGIN_PX(subsampling) << SCALE_SUBPEL_BITS)
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_WEDGE_SIZE_LOG2 6 // 64x64
#define MAX_WEDGE_SIZE (1 << MAX_WEDGE_SIZE_LOG2)
#define MAX_WEDGE_SQUARE (MAX_WEDGE_SIZE * MAX_WEDGE_SIZE)
#define MAX_WEDGE_BOUNDARY_TYPES 2
#define WEDGE_WEIGHT_BITS 6
#define WEDGE_NONE -1
#define MORPH_FIT_SHIFT 8
#define TEMPLATE_SIZE 1
static const int wedge_angle_dist_2_index[WEDGE_ANGLES][NUM_WEDGE_DIST] = {
{ -1, 0, 1, 2 }, // WEDGE_0
{ 3, 4, 5, 6 }, // WEDGE_14
{ 7, 8, 9, 10 }, // WEDGE_27
{ 11, 12, 13, 14 }, // WEDGE_45
{ 15, 16, 17, 18 }, // WEDGE_63
{ -1, 19, 20, 21 }, // WEDGE_90
{ 22, 23, 24, 25 }, // WEDGE_117
{ 26, 27, 28, 29 }, // WEDGE_135
{ 30, 31, 32, 33 }, // WEDGE_153
{ 34, 35, 36, 37 }, // WEDGE_166
{ -1, 38, 39, 40 }, // WEDGE_180
{ -1, 41, 42, 43 }, // WEDGE_194
{ -1, 44, 45, 46 }, // WEDGE_207
{ -1, 47, 48, 49 }, // WEDGE_225
{ -1, 50, 51, 52 }, // WEDGE_243
{ -1, 53, 54, 55 }, // WEDGE_270
{ -1, 56, 57, 58 }, // WEDGE_297
{ -1, 59, 60, 61 }, // WEDGE_315
{ -1, 62, 63, 64 }, // WEDGE_333
{ -1, 65, 66, 67 }, // WEDGE_346
};
static const int wedge_index_2_angle[MAX_WEDGE_TYPES] = {
WEDGE_0, WEDGE_0, WEDGE_0, // WEDGE_0
WEDGE_14, WEDGE_14, WEDGE_14, WEDGE_14, // WEDGE_14
WEDGE_27, WEDGE_27, WEDGE_27, WEDGE_27, // WEDGE_27
WEDGE_45, WEDGE_45, WEDGE_45, WEDGE_45, // WEDGE_45
WEDGE_63, WEDGE_63, WEDGE_63, WEDGE_63, // WEDGE_63
WEDGE_90, WEDGE_90, WEDGE_90, // WEDGE_90
WEDGE_117, WEDGE_117, WEDGE_117, WEDGE_117, // WEDGE_117
WEDGE_135, WEDGE_135, WEDGE_135, WEDGE_135, // WEDGE_135
WEDGE_153, WEDGE_153, WEDGE_153, WEDGE_153, // WEDGE_153
WEDGE_166, WEDGE_166, WEDGE_166, WEDGE_166, // WEDGE_166
WEDGE_180, WEDGE_180, WEDGE_180, // WEDGE_180
WEDGE_194, WEDGE_194, WEDGE_194, // WEDGE_194
WEDGE_207, WEDGE_207, WEDGE_207, // WEDGE_207
WEDGE_225, WEDGE_225, WEDGE_225, // WEDGE_225
WEDGE_243, WEDGE_243, WEDGE_243, // WEDGE_243
WEDGE_270, WEDGE_270, WEDGE_270, // WEDGE_270
WEDGE_297, WEDGE_297, WEDGE_297, // WEDGE_297
WEDGE_315, WEDGE_315, WEDGE_315, // WEDGE_315
WEDGE_333, WEDGE_333, WEDGE_333, // WEDGE_333
WEDGE_346, WEDGE_346, WEDGE_346 // WEDGE_346
};
static const int wedge_index_2_dist[MAX_WEDGE_TYPES] = {
1, 2, 3, // WEDGE_0
0, 1, 2, 3, // WEDGE_14
0, 1, 2, 3, // WEDGE_27
0, 1, 2, 3, // WEDGE_45
0, 1, 2, 3, // WEDGE_63
1, 2, 3, // WEDGE_90
0, 1, 2, 3, // WEDGE_117
0, 1, 2, 3, // WEDGE_135
0, 1, 2, 3, // WEDGE_153
0, 1, 2, 3, // WEDGE_166
1, 2, 3, // WEDGE_180
1, 2, 3, // WEDGE_194
1, 2, 3, // WEDGE_207
1, 2, 3, // WEDGE_225
1, 2, 3, // WEDGE_243
1, 2, 3, // WEDGE_270
1, 2, 3, // WEDGE_297
1, 2, 3, // WEDGE_315
1, 2, 3, // WEDGE_333
1, 2, 3, // WEDGE_346
};
// 3-tuple: {direction, x_offset, y_offset}
typedef struct {
WedgeDirectionType direction;
int x_offset;
int y_offset;
} wedge_code_type;
typedef uint8_t
*all_wedge_masks_type[MAX_WEDGE_TYPES][MAX_WEDGE_BOUNDARY_TYPES];
typedef uint8_t
*wedge_decisions_type[MAX_WEDGE_TYPES][MAX_WEDGE_BOUNDARY_TYPES];
typedef struct {
int wedge_types;
const wedge_code_type *codebook;
uint8_t *signflip;
all_wedge_masks_type *all_masks;
wedge_decisions_type *tmvp_mv_decisions;
} wedge_params_type;
extern const wedge_params_type av1_wedge_params_lookup[BLOCK_SIZES_ALL];
typedef struct SubpelParams {
int xs;
int ys;
int subpel_x;
int subpel_y;
int x0; // top left sample horizontal cood.
int y0; // top left sample vertical cood.
int x1; // x0 + bw
int y1; // y0 + bh
} SubpelParams;
struct build_prediction_ctxt {
const AV1_COMMON *cm;
uint16_t **tmp_buf;
int *tmp_width;
int *tmp_height;
int *tmp_stride;
int mb_to_far_edge;
void *dcb; // Decoder-only coding block.
};
#define REFINE_MV_MAX_OFFSET 0
#define REF_TOP_BORDER (AOM_INTERP_EXTEND - 1 + REFINE_MV_MAX_OFFSET)
#define REF_LEFT_BORDER (AOM_INTERP_EXTEND - 1 + REFINE_MV_MAX_OFFSET)
#define REF_RIGHT_BORDER (AOM_INTERP_EXTEND + REFINE_MV_MAX_OFFSET)
#define REF_BOTTOM_BORDER (AOM_INTERP_EXTEND + REFINE_MV_MAX_OFFSET)
#define REF_TOP_BORDER_WARP (AOM_INTERP_EXTEND - 1)
#define REF_LEFT_BORDER_WARP (AOM_INTERP_EXTEND - 1)
#define REF_RIGHT_BORDER_WARP (AOM_INTERP_EXTEND)
#define REF_BOTTOM_BORDER_WARP (AOM_INTERP_EXTEND)
typedef enum InterPredMode {
TRANSLATION_PRED,
WARP_PRED,
} InterPredMode;
typedef enum InterCompMode {
UNIFORM_SINGLE,
UNIFORM_COMP,
MASK_COMP,
} InterCompMode;
typedef struct InterPredParams {
InterPredMode mode;
InterCompMode comp_mode;
WarpedMotionParams warp_params;
ConvolveParams conv_params;
const InterpFilterParams *interp_filter_params[2];
int block_width;
int block_height;
// In optical flow refinement, block_width and block_height will pass the
// subblock size into av1_make_inter_predictor, while orig_block_width and
// orig_block_height keep the original block size that is needed by
// calc_subpel_params_func
int orig_block_width;
int orig_block_height;
// In refinemV, the prediction is generated maximum 16x16 sub-block basis
// original_pu_width and original_pu_height represents the width and height
// of the original block.
int original_pu_width;
int original_pu_height;
int pix_row;
int pix_col;
struct buf_2d ref_frame_buf;
int subsampling_x;
int subsampling_y;
const struct scale_factors *scale_factors;
int bit_depth;
INTERINTER_COMPOUND_DATA mask_comp;
BLOCK_SIZE sb_type;
int is_intrabc;
/**
* \name Distance of TIP block from frame edges in 1/8th pixel units.
*/
/**@{*/
int dist_to_left_edge; /*!< Distance from left edge */
int dist_to_right_edge; /*!< Distance from right edge */
int dist_to_top_edge; /*!< Distance from top edge */
int dist_to_bottom_edge; /*!< Distance from bottom edge */
int use_ref_padding;
ReferenceArea *ref_area;
int use_warp_bd_box;
WarpBoundaryBox *warp_bd_box;
INTERINTER_COMPOUND_BORDER_DATA border_data;
} InterPredParams;
// Apply bilinear and bicubic interpolation for subpel gradient to avoid
// calls of build_one_inter_predictor function. Bicubic interpolation
// brings better quality but the speed results are neutral. As such, bilinear
// interpolation is used by default for a better trade-off between quality
// and complexity.
#define OPFL_BILINEAR_GRAD 0
#define OPFL_BICUBIC_GRAD 1
// 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.
#define SUBPEL_GRAD_DELTA_BITS 2
// Bilinear and bicubic coefficients. Note that, at boundary, we apply
// coefficients that are doubled because spatial distance between the two
// interpolated pixels is halved. In other words, instead of computing
// coeff * (v[delta] - v[-delta]) / (2 * delta),
// we are practically computing
// coeff * (v[delta] - v[0]) / (2 * delta).
// Thus, coeff is doubled to get a better gradient quality.
#if OPFL_BILINEAR_GRAD
static const int bilinear_bits = 3;
static const int32_t coeffs_bilinear[4][2] = {
{ 8, 16 }, // delta = 1 (SUBPEL_GRAD_DELTA_BITS = 0)
{ 4, 8 }, // delta = 0.5 (SUBPEL_GRAD_DELTA_BITS = 1)
{ 2, 4 }, // delta = 0.25 (SUBPEL_GRAD_DELTA_BITS = 2)
{ 1, 2 }, // delta = 0.125 (SUBPEL_GRAD_DELTA_BITS = 3)
};
#endif
#if OPFL_BICUBIC_GRAD
static const int bicubic_bits = 7;
static const int32_t coeffs_bicubic[4][2][2] = {
{ { 128, 256 }, { 0, 0 } }, // delta = 1 (SUBPEL_GRAD_DELTA_BITS = 0)
{ { 80, 160 }, { -8, -16 } }, // delta = 0.5 (SUBPEL_GRAD_DELTA_BITS = 1)
{ { 42, 84 }, { -5, -10 } }, // delta = 0.25 (SUBPEL_GRAD_DELTA_BITS = 2)
{ { 21, 42 }, { -3, -6 } }, // delta = 0.125 (SUBPEL_GRAD_DELTA_BITS = 3)
};
#endif
void av1_init_inter_params(InterPredParams *inter_pred_params, int block_width,
int block_height, int pix_row, int pix_col,
int subsampling_x, int subsampling_y, int bit_depth,
int is_intrabc, const struct scale_factors *sf,
const struct buf_2d *ref_buf,
InterpFilter interp_filter);
// Get the step size and maximum coded index of the warp block
static INLINE void get_warp_model_steps(const MB_MODE_INFO *mbmi,
int *step_size, int *max_coded_index) {
int step_size_log2 = mbmi->warp_precision_idx == 0 ? 11 : 10;
*step_size = 1 << step_size_log2;
*max_coded_index = mbmi->warp_precision_idx == 0 ? 7 : 14;
}
// Get the default value of the six_param_flag
static INLINE int get_default_six_param_flag(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
return (cm->seq_params.enable_six_param_warp_delta &&
mbmi->warp_ref_idx == 1)
? 1
: 0;
}
static INLINE int allow_warp_inter_intra(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi,
const int motion_mode) {
(void)cm;
return mbmi->mode == WARPMV && motion_mode >= WARP_CAUSAL &&
is_interintra_allowed_bsize(mbmi->sb_type[PLANE_TYPE_Y]) &&
is_interintra_allowed_mode(mbmi->mode) &&
is_interintra_allowed_ref(mbmi->ref_frame) && mbmi->bawp_flag[0] == 0;
}
// Check if the signaling of the warp delta parameters are allowed
static INLINE int allow_warp_parameter_signaling(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
// Warp delta parameters are signalled in following two cases
// Case0: sequence level enable_six_param_warp_delta is enabled AND
// (mbmi->warp_ref_idx == 0), in this case 6-parameter delta is signaled.
// Case1: (mbmi->warp_ref_idx == 1), in this case 4-parameter delta is
// signaled.
int allow_delta_for_this_warp_ref_idx =
get_default_six_param_flag(cm, mbmi) || // 6-parameter
(mbmi->warp_ref_idx == 0); // 4-parameter
return (mbmi->mode == WARP_NEWMV && cm->features.allow_warpmv_mode &&
mbmi->motion_mode == WARP_DELTA && allow_delta_for_this_warp_ref_idx);
}
// Map the index to weighting factor for compound weighted prediction
static INLINE int get_cwp_coding_idx(int val, int encode,
const AV1_COMMON *const cm,
const MB_MODE_INFO *const mbmi) {
int is_same_side = 0;
int cur_ref_side = 0;
int other_ref_side = 0;
if (has_second_ref(mbmi)) {
cur_ref_side = cm->ref_frame_side[mbmi->ref_frame[0]];
other_ref_side = cm->ref_frame_side[mbmi->ref_frame[1]];
is_same_side = (cur_ref_side > 0 && other_ref_side > 0) ||
(cur_ref_side == 0 && other_ref_side == 0);
}
if (encode) {
for (int i = 0; i < MAX_CWP_NUM; i++) {
if (cwp_weighting_factor[is_same_side][i] == val) return i;
}
return 0;
} else {
return cwp_weighting_factor[is_same_side][val];
}
}
static INLINE int enable_adaptive_mvd_resolution(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
const int mode = mbmi->mode;
if (allow_amvd_mode(mode) == 0) return 0;
if (cm->seq_params.enable_adaptive_mvd == 0) return 0;
return mbmi->use_amvd;
}
// get the base reference frame list for joint MVD coding, the MVD for base
// reference frame is the same as the joint MVD, the MVD for the other reference
// frame is scaled from the joint MVD.
static INLINE int get_joint_mvd_base_ref_list(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
int base_ref_list = 0;
int first_ref_dist = 0;
int sec_ref_dist = 0;
if (has_second_ref(mbmi)) {
first_ref_dist = cm->ref_frame_relative_dist[mbmi->ref_frame[0]];
sec_ref_dist = cm->ref_frame_relative_dist[mbmi->ref_frame[1]];
if (first_ref_dist >= sec_ref_dist) {
base_ref_list = 0;
} else {
base_ref_list = 1;
}
}
return base_ref_list;
}
// check whether the direction of two reference frames are from same side
static INLINE int is_ref_frame_same_side(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
int is_same_side = 0;
int cur_ref_side = 0;
int other_ref_side = 0;
if (has_second_ref(mbmi)) {
cur_ref_side = cm->ref_frame_side[mbmi->ref_frame[0]];
other_ref_side = cm->ref_frame_side[mbmi->ref_frame[1]];
is_same_side = (cur_ref_side > 0 && other_ref_side > 0) ||
(cur_ref_side == 0 && other_ref_side == 0);
}
return is_same_side;
}
// check whether the distance of to the two reference frames are the same
static INLINE int is_ref_frame_same_dist(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
int is_same_dist = 0;
if (has_second_ref(mbmi)) {
const int first_ref_dist = cm->ref_frame_relative_dist[mbmi->ref_frame[0]];
const int sec_ref_dist = cm->ref_frame_relative_dist[mbmi->ref_frame[1]];
is_same_dist = (first_ref_dist == sec_ref_dist);
}
return is_same_dist;
}
// obtain context for inter_compound_mode_is_joint
static INLINE int get_inter_compound_mode_is_joint_context(
const AV1_COMMON *const cm, const MB_MODE_INFO *mbmi) {
return (is_ref_frame_same_side(cm, mbmi) ||
(!is_ref_frame_same_dist(cm, mbmi)));
}
void av1_init_comp_mode(InterPredParams *inter_pred_params);
void av1_init_warp_params(InterPredParams *inter_pred_params,
const WarpTypesAllowed *warp_types, int ref,
const MACROBLOCKD *xd, const MB_MODE_INFO *mi);
static INLINE int has_scale(int xs, int ys) {
return xs != SCALE_SUBPEL_SHIFTS || ys != SCALE_SUBPEL_SHIFTS;
}
static INLINE void revert_scale_extra_bits(SubpelParams *sp) {
sp->subpel_x >>= SCALE_EXTRA_BITS;
sp->subpel_y >>= SCALE_EXTRA_BITS;
sp->xs >>= SCALE_EXTRA_BITS;
sp->ys >>= SCALE_EXTRA_BITS;
assert(sp->subpel_x < SUBPEL_SHIFTS);
assert(sp->subpel_y < SUBPEL_SHIFTS);
assert(sp->xs <= SUBPEL_SHIFTS);
assert(sp->ys <= SUBPEL_SHIFTS);
}
static INLINE void highbd_inter_predictor(
const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride,
const SubpelParams *subpel_params, int w, int h,
ConvolveParams *conv_params, const InterpFilterParams *interp_filters[2],
int bd, int is_intrabc) {
assert(conv_params->do_average == 0 || conv_params->do_average == 1);
const int is_scaled = has_scale(subpel_params->xs, subpel_params->ys);
if (is_scaled) {
assert(is_intrabc == 0);
av1_highbd_convolve_2d_facade(
src, src_stride, dst, dst_stride, w, h, interp_filters,
subpel_params->subpel_x, subpel_params->xs, subpel_params->subpel_y,
subpel_params->ys, 1, conv_params, bd, is_intrabc);
} else {
SubpelParams sp = *subpel_params;
revert_scale_extra_bits(&sp);
av1_highbd_convolve_2d_facade(
src, src_stride, dst, dst_stride, w, h, interp_filters, sp.subpel_x,
sp.xs, sp.subpel_y, sp.ys, 0, conv_params, bd, is_intrabc);
}
}
static INLINE int is_interinter_compound_used(COMPOUND_TYPE type,
BLOCK_SIZE sb_type) {
const int comp_allowed = is_comp_ref_allowed(sb_type);
switch (type) {
case COMPOUND_AVERAGE: return comp_allowed;
case COMPOUND_DIFFWTD:
return comp_allowed && !is_thin_4xn_nx4_block(sb_type);
case COMPOUND_WEDGE:
return comp_allowed && av1_wedge_params_lookup[sb_type].wedge_types > 0;
default: assert(0); return 0;
}
}
static INLINE int is_any_masked_compound_used(BLOCK_SIZE sb_type) {
COMPOUND_TYPE comp_type;
int i;
if (!is_comp_ref_allowed(sb_type)) return 0;
for (i = 0; i < COMPOUND_TYPES; i++) {
comp_type = (COMPOUND_TYPE)i;
if (is_masked_compound_type(comp_type) &&
is_interinter_compound_used(comp_type, sb_type))
return 1;
}
return 0;
}
static INLINE int get_wedge_types_lookup(BLOCK_SIZE sb_type) {
return av1_wedge_params_lookup[sb_type].wedge_types;
}
static INLINE int av1_is_wedge_used(BLOCK_SIZE sb_type) {
return av1_wedge_params_lookup[sb_type].wedge_types > 0;
}
void av1_make_inter_predictor(const uint16_t *src, int src_stride,
uint16_t *dst, int dst_stride,
InterPredParams *inter_pred_params,
const SubpelParams *subpel_params);
typedef void (*CalcSubpelParamsFunc)(const MV *const src_mv,
InterPredParams *const inter_pred_params,
MACROBLOCKD *xd, int mi_x, int mi_y,
int ref, int use_optflow_refinement,
uint16_t **mc_buf, uint16_t **pre,
SubpelParams *subpel_params,
int *src_stride);
void av1_build_one_inter_predictor(
uint16_t *dst, int dst_stride, const MV *const src_mv,
InterPredParams *inter_pred_params, MACROBLOCKD *xd, int mi_x, int mi_y,
int ref, uint16_t **mc_buf, CalcSubpelParamsFunc calc_subpel_params_func);
void av1_build_inter_predictors(const AV1_COMMON *cm, MACROBLOCKD *xd,
int plane, MB_MODE_INFO *mi,
const BUFFER_SET *dst_orig,
int build_for_refine_mv_only,
int build_for_decode, int bw, int bh, int mi_x,
int mi_y, uint16_t **mc_buf,
CalcSubpelParamsFunc calc_subpel_params_func);
// Precision of refined MV returned, 0 being integer pel. For now, only 1/8 or
// 1/16-pel can be used.
#define MV_REFINE_PREC_BITS 4 // (1/16-pel)
#define OPFL_PRED_MAX ((1 << 10) - 1)
// Apply regularized least squares (RLS). The RLS parameter is bw * bh * 2^(b-4)
// where b = OPFL_RLS_PARAM.
#define OPFL_REGULARIZED_LS 1
#define OPFL_RLS_PARAM 16
// Number of bits allowed for all intermediate results of covariance matrix
// filling
#define MAX_OPFL_AUTOCORR_BITS 24
// Clamp range for u/v/w. If it uses h unsigned bits, then u2/v2 uses 2h
// unsigned bits. Every sum of 8 u2/v2 use at most 2h+3 unsigned bits, and
// must not exceed max bd of su2/sv2 minus 2. Thus, 2h+3 <= H-2
#define OPFL_GRAD_CLAMP_VAL ((1 << ((MAX_OPFL_AUTOCORR_BITS - 6) >> 1)) - 1)
void reduce_temporal_dist(int *d0, int *d1);
void av1_opfl_build_inter_predictor(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mi,
int bw, int bh, int mi_x, int mi_y, uint16_t **mc_buf,
InterPredParams *inter_pred_params,
CalcSubpelParamsFunc calc_subpel_params_func, int ref, uint16_t *pred_dst,
const MV *const src_mv, int pu_width, int pu_height);
// Generate refined MVs using optflow refinement
void 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,
int build_for_decode, uint16_t **mc_buf,
CalcSubpelParamsFunc calc_subpel_params_func,
int16_t *gx0, int16_t *gy0, int16_t *gx1,
int16_t *gy1, int *vx0, int *vy0, int *vx1,
int *vy1, uint16_t *dst0, uint16_t *dst1,
int dst_stride, int do_pred, int use_4x4,
MV *best_mv_ref, int pu_width, int pu_height);
// With the refined MVs, generate the inter prediction for the block.
void av1_opfl_rebuild_inter_predictor(
uint16_t *dst, int dst_stride, int plane, int_mv *const mv_refined,
InterPredParams *inter_pred_params, MACROBLOCKD *xd, int mi_x, int mi_y,
int build_for_decode, const AV1_COMMON *cm, int pu_width, int ref,
uint16_t **mc_buf, CalcSubpelParamsFunc calc_subpel_params_func,
int use_4x4, MB_MODE_INFO *mi, int pu_height, const MV mi_mv[2],
int use_sub_pad);
// We consider this tunable number K=MAX_LS_BITS-1 (sign bit excluded)
// as the target maximum bit depth of all intermediate results for LS problem.
#define MAX_LS_BITS 26
// Divide all elements of a vector by a common factor, and apply shifts.
// The integer division is based on lookup table.
// sol: numerator (will be updated to the solution)
// den: denominator
// out: output result (sol / den)
static INLINE void divide_and_round_array(int32_t *sol, int32_t den,
const int dim, int *shifts) {
assert(den != 0);
if (den < 0) {
for (int i = 0; i < dim; i++) sol[i] = -sol[i];
divide_and_round_array(sol, -den, dim, shifts);
return;
}
int16_t den_shift = 0;
int16_t inv_den =
(den == 1) ? 1 : resolve_divisor_32((uint32_t)den, &den_shift);
int inv_den_msb = get_msb_signed(inv_den);
// Apply shifts to sol[i] and den to keep both bit depths within K.
for (int i = 0; i < dim; i++) {
if (sol[i] == 0) continue;
int sign = sol[i] > 0;
sol[i] = sign ? sol[i] : -sol[i];
int num_red_bits =
AOMMAX(0, get_msb_signed(sol[i]) + inv_den_msb + 4 - MAX_LS_BITS);
if (num_red_bits > 0) sol[i] = ROUND_POWER_OF_TWO(sol[i], num_red_bits);
int inc_bits = shifts[i] + num_red_bits - den_shift;
if (inc_bits >= 0)
sol[i] = sol[i] * inv_den * (1 << inc_bits);
else if (-inc_bits >= 31) // ROUND_POWER_OF_TWO can only handle n<=30
sol[i] = ROUND_POWER_OF_TWO(
ROUND_POWER_OF_TWO(sol[i], -inc_bits - 30) * inv_den, 30);
else
sol[i] = ROUND_POWER_OF_TWO(sol[i] * inv_den, -inc_bits);
sol[i] = sign ? sol[i] : -sol[i];
}
}
// This function is a stable version of ROUND_POWER_OF_TWO_SIGNED(a*b, shift),
// where shifts are partially applied before multiplcation operations to avoid
// overflow issues, i.e., (a>>s1)*(b>>s2)>>s3, where s1+s2+s3=shift
int64_t stable_mult_shift(const int64_t a, const int64_t b, const int shift,
const int msb_a, const int msb_b, const int max_bd,
int *rem_shift);
static INLINE int is_translational_refinement_allowed(const AV1_COMMON *cm,
BLOCK_SIZE bsize,
const MACROBLOCKD *xd,
const int mode) {
assert(cm->seq_params.enable_opfl_refine);
(void)cm;
if (mode < NEAR_NEARMV_OPTFLOW) return 0;
if (is_thin_4xn_nx4_block(bsize)) return 0;
(void)xd;
return 1;
}
void highbd_build_mc_border(const uint16_t *src, int src_stride, uint16_t *dst,
int dst_stride, int x, int y, int b_w, int b_h,
int w, int h);
// Compute the SAD between the two predictors when refinemv is ON
int get_refinemv_sad(uint16_t *src1, uint16_t *src2, int stride, int width,
int height, int bd);
// Generate two prediction signals of a given mv0 and mv1
void av1_refinemv_build_predictors(MACROBLOCKD *xd, int mi_x, int mi_y,
uint16_t **mc_buf,
CalcSubpelParamsFunc calc_subpel_params_func,
uint16_t *dst_ref0, uint16_t *dst_ref1,
int dst_stride, MV mv0, MV mv1,
InterPredParams *inter_pred_params);
// Get the context index to code refinemv flag
int av1_get_refinemv_context(const AV1_COMMON *cm, const MACROBLOCKD *xd,
BLOCK_SIZE bsize);
// Full blocks refine MVs are stored in 4x4 grid so that the MVs can be reused
// for chroma
void fill_subblock_refine_mv(REFINEMV_SUBMB_INFO *refinemv_subinfo, int bw,
int bh, MV mv0, MV mv1);
void av1_get_reference_area_with_padding_single(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, const MB_MODE_INFO *mi,
const MV mv, int bw, int bh, int mi_x, int mi_y, ReferenceArea *ref_area,
int pu_width, int pu_height, int ref);
void av1_get_reference_area_with_padding_single_warp(
const AV1_COMMON *cm, MACROBLOCKD *xd, int plane, MB_MODE_INFO *mi,
const MV mv, int bw, int bh, int mi_x, int mi_y, WarpBoundaryBox *ref_area,
int pu_width, int pu_height, int ref);
// Generate the reference area ( bounding box) based on the signaled MV
void av1_get_reference_area_with_padding(const AV1_COMMON *cm, MACROBLOCKD *xd,
int plane, MB_MODE_INFO *mi,
const MV mv[2], int bw, int bh,
int mi_x, int mi_y,
ReferenceArea ref_area[2],
int pu_width, int pu_height);
// Derive the sub-pixel related parameters of non-TIP blocks
// Sub-pel related parameters are stored in the structures pointed by
// "subpel_params" and "block"
void dec_calc_subpel_params(const MV *const src_mv,
InterPredParams *const inter_pred_params,
const MACROBLOCKD *const xd, int mi_x, int mi_y,
uint16_t **pre, SubpelParams *subpel_params,
int *src_stride, PadBlock *block,
int use_optflow_refinement, MV32 *scaled_mv,
int *subpel_x_mv, int *subpel_y_mv);
// check if the refinemv mode is allwed for a given blocksize
static INLINE int is_refinemv_allowed_bsize(BLOCK_SIZE bsize) {
assert(bsize < BLOCK_SIZES_ALL);
if (AOMMIN(block_size_wide[bsize], block_size_high[bsize]) < 8) return 0;
return (block_size_wide[bsize] >= 16 || block_size_high[bsize] >= 16);
}
// check if the refinemv mode is allwed for a given mode and precision
static INLINE int is_refinemv_allowed_mode_precision(
PREDICTION_MODE mode, MvSubpelPrecision precision,
const AV1_COMMON *const cm) {
(void)precision;
if (mode == GLOBAL_GLOBALMV) return 0;
if (cm->features.opfl_refine_type == REFINE_SWITCHABLE &&
(mode == JOINT_NEWMV || mode == NEAR_NEWMV || mode == NEW_NEARMV ||
mode == NEW_NEWMV))
return 0;
return (mode >= NEAR_NEARMV);
}
// check if the prediction mode infered to refimemv to always 1.
static INLINE int default_refinemv_modes(const MB_MODE_INFO *mbmi) {
return (mbmi->mode == NEAR_NEARMV || mbmi->mode == NEAR_NEARMV_OPTFLOW ||
mbmi->mode == JOINT_NEWMV_OPTFLOW);
}
// Check if the compound and equal distance references
static INLINE int is_refinemv_allowed_reference(const AV1_COMMON *cm,
const MB_MODE_INFO *mbmi) {
if (!cm->seq_params.enable_refinemv) return 0;
const unsigned int cur_index = cm->cur_frame->display_order_hint;
int d0, d1;
int is_tip = (mbmi->ref_frame[0] == TIP_FRAME);
// If one of the reference frame is different resolution than the current
// frame, refinemv is disabled.
const struct scale_factors *const sf0 =
is_tip ? cm->tip_ref.ref_scale_factor[0]
: get_ref_scale_factors_const(cm, mbmi->ref_frame[0]);
const struct scale_factors *const sf1 =
is_tip ? cm->tip_ref.ref_scale_factor[1]
: get_ref_scale_factors_const(cm, mbmi->ref_frame[1]);
if (av1_is_scaled(sf0) || av1_is_scaled(sf1)) {
return 0;
}
if (is_tip) {
d0 = cm->tip_ref.ref_offset[0];
d1 = cm->tip_ref.ref_offset[1];
} else {
if (!has_second_ref(mbmi)) return 0;
const RefCntBuffer *const ref0 = get_ref_frame_buf(cm, mbmi->ref_frame[0]);
const RefCntBuffer *const ref1 = get_ref_frame_buf(cm, mbmi->ref_frame[1]);
d0 = get_relative_dist(&cm->seq_params.order_hint_info, cur_index,
ref0->display_order_hint);
d1 = get_relative_dist(&cm->seq_params.order_hint_info, cur_index,
ref1->display_order_hint);
}
// reference frame has to be both sides to apply dmvr
if (!((d0 <= 0) ^ (d1 <= 0))) return 0;
// Current implementation only supports when both has the same distance
if (abs(d0) != abs(d1)) return 0;
return 1;
}
// check if the refinemv mode is allowed for a given block
static INLINE int is_refinemv_allowed(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi,
BLOCK_SIZE bsize) {
if (!cm->seq_params.enable_refinemv) return 0;
int is_tip = is_tip_ref_frame(mbmi->ref_frame[0]);
if (is_tip) return 0;
assert(!mbmi->skip_mode);
int is_compound = has_second_ref(mbmi);
return mbmi->motion_mode == SIMPLE_TRANSLATION && is_compound &&
is_refinemv_allowed_bsize(bsize) &&
is_refinemv_allowed_mode_precision(mbmi->mode, mbmi->pb_mv_precision,
cm) &&
is_refinemv_allowed_reference(cm, mbmi);
}
// check if any mv refinement mode is allowed in TIP at frame level
static INLINE int is_any_mv_refinement_allowed_in_tip(
const AV1_COMMON *const cm) {
if (!cm->has_both_sides_refs) return 0;
#if CONFIG_FIX_OPFL_AUTO
if (cm->features.opfl_refine_type == REFINE_NONE &&
!cm->seq_params.enable_refinemv)
return 0;
#else
if (!cm->seq_params.enable_opfl_refine && !cm->seq_params.enable_refinemv)
return 0;
#endif // CONFIG_FIX_OPFL_AUTO
if (!cm->seq_params.enable_tip_refinemv) return 0;
const int tip_wtd_index = cm->tip_global_wtd_index;
const int8_t tip_weight = tip_weighting_factors[tip_wtd_index];
if (tip_weight != TIP_EQUAL_WTD) return 0;
return 1;
}
// check if any refinement algorithm is applied in TIP at block level
static INLINE int is_tip_block_with_mv_refinement(const AV1_COMMON *const cm,
const MACROBLOCKD *xd) {
if (!is_any_mv_refinement_allowed_in_tip(cm)) return 0;
if (cm->features.tip_frame_mode == TIP_FRAME_AS_OUTPUT) {
// No OPFL and subblock MV refinement on TIP direct output mode when
// the interpolation filter is not MULTITAP_SHARP
if (cm->tip_interp_filter != MULTITAP_SHARP) return 0;
// No subblock MV refinement on TIP direct output mode when the
// interpolation filter is MULTITAP_SHARP
if (cm->seq_params.enable_opfl_refine == AOM_OPFL_REFINE_NONE) return 0;
}
if (cm->features.tip_frame_mode == TIP_FRAME_AS_REF) {
// No OPFL MV refinement on TIP reference mode when the coding block
// is 256x256
const MB_MODE_INFO *mi = xd->mi[0];
const int bw = block_size_wide[mi->sb_type[xd->tree_type == CHROMA_PART]];
const int bh = block_size_high[mi->sb_type[xd->tree_type == CHROMA_PART]];
if (bw >= 256 && bh >= 256 && !cm->seq_params.enable_refinemv) return 0;
}
return 1;
}
// Is the coding block a TIP 16x16 coding block.
static AOM_INLINE bool is_tip_coded_as_16x16_block(const AV1_COMMON *cm,
const MB_MODE_INFO *mi) {
if (!is_tip_ref_frame(mi->ref_frame[0])) return false;
const int bw = block_size_wide[mi->sb_type[0]];
const int bh = block_size_high[mi->sb_type[0]];
bool is_tip_16_16 = disable_opfl_for_16x16_tip_ref(
cm->features.tip_frame_mode, bw, bh, cm->seq_params.enable_tip_refinemv);
is_tip_16_16 |= disable_opfl_for_tip_direct(
cm->features.tip_frame_mode, cm->tip_interp_filter,
cm->seq_params.enable_tip_refinemv);
return is_tip_16_16;
}
// check if unequal weight is allowed for TIP at frame level
static INLINE int is_unequal_weighted_tip_allowed(const AV1_COMMON *const cm) {
if (!cm->has_both_sides_refs) return 1;
if (!cm->seq_params.enable_tip_refinemv) return 1;
#if CONFIG_FIX_OPFL_AUTO
if (cm->features.opfl_refine_type == REFINE_NONE &&
!cm->seq_params.enable_refinemv)
return 1;
#else
if (!cm->seq_params.enable_opfl_refine && !cm->seq_params.enable_refinemv)
return 1;
#endif // CONFIG_FIX_OPFL_AUTO
return 0;
}
// set the weighting factor of TIP frame
static INLINE void set_tip_interp_weight_factor(
const AV1_COMMON *const cm, const int ref_index,
InterPredParams *const inter_pred_params) {
if (ref_index == 1 && inter_pred_params->conv_params.do_average == 1 &&
!is_any_mv_refinement_allowed_in_tip(cm)) {
const int tip_wtd_index = cm->tip_global_wtd_index;
const int8_t tip_weight = tip_weighting_factors[tip_wtd_index];
assert(tip_wtd_index >= 0 && tip_wtd_index < MAX_TIP_WTD_NUM);
inter_pred_params->conv_params.fwd_offset = tip_weight;
inter_pred_params->conv_params.bck_offset =
(1 << DIST_PRECISION_BITS) - tip_weight;
}
}
// check if the refinemv mode is allowed for a given block for TIP mode
static INLINE int is_refinemv_allowed_tip_blocks(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
assert(is_tip_ref_frame(mbmi->ref_frame[0]));
return cm->seq_params.enable_refinemv && cm->seq_params.enable_tip_refinemv &&
is_refinemv_allowed_reference(cm, mbmi) &&
(cm->features.tip_frame_mode != TIP_FRAME_AS_OUTPUT);
}
// check if the refinemv mode is allowed for a given block for skip mode
static INLINE int is_refinemv_allowed_skip_mode(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
(void)cm;
(void)mbmi;
return 0;
}
static INLINE int get_default_refinemv_flag(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
if (!cm->seq_params.enable_refinemv) return 0;
int is_refinemv =
(mbmi->skip_mode
? is_refinemv_allowed_skip_mode(cm, mbmi)
: is_refinemv_allowed(cm, mbmi, mbmi->sb_type[PLANE_TYPE_Y]));
if (is_refinemv) {
if (default_refinemv_modes(mbmi)) return 1;
}
return 0;
}
// check if the refinemv mode is switchable for a given block
static INLINE int switchable_refinemv_flag(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
if (!cm->seq_params.enable_refinemv) return 0;
int is_refinemv =
(mbmi->skip_mode
? is_refinemv_allowed_skip_mode(cm, mbmi)
: is_refinemv_allowed(cm, mbmi, mbmi->sb_type[PLANE_TYPE_Y]));
if (is_refinemv && !is_tip_ref_frame(mbmi->ref_frame[0])) {
if (default_refinemv_modes(mbmi)) return 0;
return 1;
}
return 0;
}
// Check if refined MV needs to be stored in the TMVP list.
static INLINE int enable_refined_mvs_in_tmvp(const AV1_COMMON *cm,
const MACROBLOCKD *xd,
const MB_MODE_INFO *mbmi) {
return (
opfl_allowed_cur_pred_mode(cm, xd, mbmi) ||
(mbmi->refinemv_flag && mbmi->interinter_comp.type == COMPOUND_AVERAGE) ||
(is_tip_ref_frame(mbmi->ref_frame[0]) &&
is_tip_block_with_mv_refinement(cm, xd)));
}
// This function conduct the SAD search between two predictors and find the best
// MVs
void apply_mv_refinement(const AV1_COMMON *cm, MACROBLOCKD *xd, int plane,
MB_MODE_INFO *mi, int bw, int bh, int mi_x, int mi_y,
uint16_t **mc_buf, const MV mv[2],
CalcSubpelParamsFunc calc_subpel_params_func,
int pre_x, int pre_y, uint16_t *dst_ref0,
uint16_t *dst_ref1, uint16_t **dst_ref0_ptr,
uint16_t **dst_ref1_ptr, MV *best_mv_ref, int pu_width,
int pu_height, ReferenceArea ref_area[2]);
// check if padding is required during motion compensation
// return 1 means reference pixel is outside of the reference range and padding
// is required return 0 means no padding.
int update_extend_mc_border_params(const struct scale_factors *const sf,
struct buf_2d *const pre_buf, MV32 scaled_mv,
PadBlock *block, int subpel_x_mv,
int subpel_y_mv, int do_warp, int is_intrabc,
int *x_pad, int *y_pad,
const ReferenceArea *ref_area);
int update_extend_mc_border_params_bi(const struct scale_factors *const sf,
struct buf_2d *const pre_buf,
MV32 scaled_mv, PadBlock *block,
int subpel_x_mv, int subpel_y_mv,
int do_warp, int is_intrabc,
const ReferenceArea *ref_area);
// Derive the sub-pixel related parameters of refinemv non-TIP blocks
// Sub-pel related parameters are stored in the structures pointed by
// "subpel_params" Also do padding if required This function is used for
// both encoder and decoder
void common_calc_subpel_params_and_extend(
const MV *const src_mv, InterPredParams *const inter_pred_params,
MACROBLOCKD *const xd, int mi_x, int mi_y, int ref,
int use_optflow_refinement, uint16_t **mc_buf, uint16_t **pre,
SubpelParams *subpel_params, int *src_stride);
#define MAKE_BFP_SAD_WRAPPER_COMMON(fnname) \
static unsigned int fnname##_8(const uint16_t *src_ptr, int source_stride, \
const uint16_t *ref_ptr, int ref_stride) { \
return fnname(src_ptr, source_stride, ref_ptr, ref_stride); \
} \
static unsigned int fnname##_10(const uint16_t *src_ptr, int source_stride, \
const uint16_t *ref_ptr, int ref_stride) { \
return fnname(src_ptr, source_stride, ref_ptr, ref_stride) >> 2; \
} \
static unsigned int fnname##_12(const uint16_t *src_ptr, int source_stride, \
const uint16_t *ref_ptr, int ref_stride) { \
return fnname(src_ptr, source_stride, ref_ptr, ref_stride) >> 4; \
}
unsigned int get_highbd_sad(const uint16_t *src_ptr, int source_stride,
const uint16_t *ref_ptr, int ref_stride, int bd,
int bw, int bh);
unsigned int get_highbd_sad_ds(const uint16_t *src_ptr, int source_stride,
const uint16_t *ref_ptr, int ref_stride, int bd,
int bw, int bh);
void calc_mv_process(int32_t su2, int32_t sv2, int32_t suv, int32_t suw,
int32_t svw, const int d0, const int d1, const int bits,
const int rls_alpha, int *vx0, int *vy0, int *vx1,
int *vy1);
void av1_opfl_mv_refinement(const int16_t *pdiff, int pstride0,
const int16_t *gx, const int16_t *gy, 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);
void av1_compute_subpel_gradients_interp(int16_t *pred_dst, int bw, int bh,
int *grad_prec_bits, int16_t *x_grad,
int16_t *y_grad);
// TODO(jkoleszar): yet another mv clamping function :-(
static INLINE MV clamp_mv_to_umv_border_sb(const MACROBLOCKD *xd,
const MV *src_mv, int bw, int bh,
int use_optflow_refinement, int ss_x,
int ss_y) {
// If the MV points so far into the UMV border that no visible pixels
// are used for reconstruction, the subpel part of the MV can be
// discarded and the MV limited to 16 pixels with equivalent results.
const int spel_left = (AOM_INTERP_EXTEND + bw) << SUBPEL_BITS;
const int spel_right = spel_left - SUBPEL_SHIFTS;
const int spel_top = (AOM_INTERP_EXTEND + bh) << SUBPEL_BITS;
const int spel_bottom = spel_top - SUBPEL_SHIFTS;
MV clamped_mv;
if (use_optflow_refinement) {
// optflow refinement always returns MVs with 1/16 precision so it is not
// necessary to shift the MV before clamping
clamped_mv.row = (MV_COMP_DATA_TYPE)ROUND_POWER_OF_TWO_SIGNED(
src_mv->row * (1 << SUBPEL_BITS), MV_REFINE_PREC_BITS + ss_y);
clamped_mv.col = (MV_COMP_DATA_TYPE)ROUND_POWER_OF_TWO_SIGNED(
src_mv->col * (1 << SUBPEL_BITS), MV_REFINE_PREC_BITS + ss_x);
} else {
clamped_mv.row = (MV_COMP_DATA_TYPE)(src_mv->row * (1 << (1 - ss_y)));
clamped_mv.col = (MV_COMP_DATA_TYPE)(src_mv->col * (1 << (1 - ss_x)));
}
assert(ss_x <= 1);
assert(ss_y <= 1);
const SubpelMvLimits mv_limits = {
xd->mb_to_left_edge * (1 << (1 - ss_x)) - spel_left,
xd->mb_to_right_edge * (1 << (1 - ss_x)) + spel_right,
xd->mb_to_top_edge * (1 << (1 - ss_y)) - spel_top,
xd->mb_to_bottom_edge * (1 << (1 - ss_y)) + spel_bottom
};
clamp_mv(&clamped_mv, &mv_limits);
return clamped_mv;
}
void make_masked_inter_predictor(const uint16_t *pre, int pre_stride,
uint16_t *dst, int dst_stride,
InterPredParams *inter_pred_params,
const SubpelParams *subpel_params,
int use_bacp, int sub_block_id);
static INLINE int use_border_aware_compound(const AV1_COMMON *cm,
MACROBLOCKD *xd,
const MB_MODE_INFO *mbmi) {
if (is_masked_compound_type(mbmi->interinter_comp.type) ||
mbmi->mode == GLOBAL_GLOBALMV)
return 0;
if (mbmi->mode == NEW_NEWMV && mbmi->motion_mode == WARP_CAUSAL) return 0;
(void)cm;
const struct scale_factors *const sf0 = xd->block_ref_scale_factors[0];
const struct scale_factors *const sf1 = xd->block_ref_scale_factors[1];
return has_second_ref(mbmi) &&
(mbmi->mode >= COMP_INTER_MODE_START &&
mbmi->mode < COMP_INTER_MODE_END) &&
!av1_is_scaled(sf0) && !av1_is_scaled(sf1) &&
(mbmi->interinter_comp.type == COMPOUND_DIFFWTD ||
mbmi->interinter_comp.type == COMPOUND_AVERAGE);
}
int is_out_of_frame_block(InterPredParams const *inter_pred_params,
int frame_width, int frame_height, int sub_block_id);
static INLINE int64_t scaled_buffer_offset(int x_offset, int y_offset,
int stride,
const struct scale_factors *sf) {
const int x =
sf ? sf->scale_value_x(x_offset, sf) >> SCALE_EXTRA_BITS : x_offset;
const int y =
sf ? sf->scale_value_y(y_offset, sf) >> SCALE_EXTRA_BITS : y_offset;
return (int64_t)y * stride + x;
}
static INLINE void setup_pred_plane(struct buf_2d *dst, uint16_t *src,
int width, int height, int crop_width,
int crop_height, int stride, int mi_row,
int mi_col,
const struct scale_factors *scale,
int subsampling_x, int subsampling_y,
const CHROMA_REF_INFO *chroma_ref_info) {
// Offset the buffer pointer
if (chroma_ref_info && (subsampling_x || subsampling_y)) {
mi_row = chroma_ref_info->mi_row_chroma_base;
mi_col = chroma_ref_info->mi_col_chroma_base;
}
const int x = (MI_SIZE * mi_col) >> subsampling_x;
const int y = (MI_SIZE * mi_row) >> subsampling_y;
dst->buf = src + scaled_buffer_offset(x, y, stride, scale);
dst->buf0 = src;
dst->width = width;
dst->height = height;
dst->crop_width = crop_width;
dst->crop_height = crop_height;
dst->stride = stride;
}
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 *chroma_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 *chroma_ref_info);
static AOM_INLINE void setup_pred_planes_for_tip(const TIP *tip_ref,
MACROBLOCKD *xd,
int plane_start, int plane_end,
int mi_col, int mi_row) {
for (int plane = plane_start; plane < AOMMIN(plane_end, MAX_MB_PLANE);
++plane) {
struct macroblockd_plane *const pd = &xd->plane[plane];
int is_uv = plane > 0;
for (int ref = 0; ref < 2; ++ref) {
const YV12_BUFFER_CONFIG *ref_buf = &tip_ref->ref_frame_buffer[ref]->buf;
setup_pred_plane(&pd->pre[ref], ref_buf->buffers[plane],
ref_buf->widths[is_uv], ref_buf->heights[is_uv],
ref_buf->crop_widths[is_uv],
ref_buf->crop_heights[is_uv], ref_buf->strides[is_uv],
mi_row, mi_col, tip_ref->ref_scale_factor[ref],
pd->subsampling_x, pd->subsampling_y, NULL);
}
}
}
static INLINE void set_default_interp_filters(
MB_MODE_INFO *const mbmi, const AV1_COMMON *cm, const MACROBLOCKD *xd,
InterpFilter frame_interp_filter) {
if (mbmi->skip_mode) {
mbmi->interp_fltr = MULTITAP_SHARP;
return;
}
mbmi->interp_fltr =
(opfl_allowed_cur_pred_mode(cm, xd, mbmi) || mbmi->refinemv_flag ||
is_tip_ref_frame(mbmi->ref_frame[0]))
? MULTITAP_SHARP
: av1_unswitchable_filter(frame_interp_filter);
}
static INLINE int av1_is_interp_needed(const AV1_COMMON *const cm,
const MACROBLOCKD *const xd) {
(void)cm;
const MB_MODE_INFO *const mbmi = xd->mi[0];
if (mbmi->skip_mode) return 0;
if (mbmi->mode == WARPMV) return 0;
// No interpolation filter search when optical flow MV refinement is used.
if (opfl_allowed_cur_pred_mode(cm, xd, mbmi)) return 0;
// No interpolation filter search when MV refinement is used.
if (mbmi->refinemv_flag) return 0;
if (is_warp_mode(mbmi->motion_mode)) return 0;
if (is_nontrans_global_motion(xd, xd->mi[0])) return 0;
if (is_tip_ref_frame(mbmi->ref_frame[0])) return 0;
return 1;
}
#define MASK_MASTER_SIZE ((MAX_WEDGE_SIZE) << 1)
#define MASK_MASTER_STRIDE (MASK_MASTER_SIZE)
void av1_init_wedge_masks();
static INLINE const uint8_t *av1_get_all_contiguous_soft_mask(
int8_t wedge_index, int8_t wedge_sign, BLOCK_SIZE sb_type,
int boundary_index) {
return av1_wedge_params_lookup[sb_type]
.all_masks[wedge_sign][wedge_index][boundary_index];
}
static INLINE int8_t get_wedge_boundary_type(BLOCK_SIZE bsize) {
int8_t boundary_type = 1; // smooth mask
if (bsize <= BLOCK_16X16) {
boundary_type = 0; // sharp mask
}
return boundary_type;
}
static INLINE const uint8_t *av1_get_contiguous_soft_mask_decision(
int8_t wedge_index, int8_t wedge_sign, int boundary_index,
BLOCK_SIZE sb_type) {
return av1_wedge_params_lookup[sb_type]
.tmvp_mv_decisions[wedge_sign][wedge_index][boundary_index];
}
const uint8_t *av1_get_compound_type_mask(
const INTERINTER_COMPOUND_DATA *const comp_data, BLOCK_SIZE sb_type);
// Init the masks for compound weighted prediction
void init_cwp_masks();
// Get the mask for compound weighted prediction
const int8_t *av1_get_cwp_mask(int list_idx, int idx);
// build interintra_predictors for one plane
void av1_build_interintra_predictor(const AV1_COMMON *cm, MACROBLOCKD *xd,
uint16_t *pred, int stride,
const BUFFER_SET *ctx, int plane,
BLOCK_SIZE bsize);
void av1_build_intra_predictors_for_interintra(const AV1_COMMON *cm,
MACROBLOCKD *xd, int plane,
const BUFFER_SET *ctx,
uint16_t *dst, int dst_stride);
void av1_combine_interintra(MACROBLOCKD *xd, BLOCK_SIZE bsize, int plane,
const uint16_t *inter_pred, int inter_stride,
const uint16_t *intra_pred, int intra_stride);
int av1_allow_warp(const MB_MODE_INFO *const mbmi,
const WarpTypesAllowed *const warp_types,
const WarpedMotionParams *const gm_params, int ref,
const struct scale_factors *const sf,
WarpedMotionParams *final_warp_params);
static INLINE int av1_allow_bawp(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi, int mi_row,
int mi_col) {
if (mbmi->mode == WARPMV) return 0;
if (mbmi->mode == GLOBALMV) return 0;
// If one of the reference frame is different resolution than the current
// frame, bawp is disabled.
const struct scale_factors *const sf0 =
get_ref_scale_factors_const(cm, mbmi->ref_frame[0]);
const struct scale_factors *const sf1 =
get_ref_scale_factors_const(cm, mbmi->ref_frame[1]);
if ((sf0 != NULL && av1_is_scaled(sf0)) ||
(sf1 != NULL && av1_is_scaled(sf1))) {
return 0;
}
if (mbmi->mode == WARP_NEWMV) return 0;
if (is_tip_ref_frame(mbmi->ref_frame[0])) return 0;
if (is_motion_variation_allowed_bsize(mbmi->sb_type[PLANE_TYPE_Y], mi_row,
mi_col) &&
is_inter_singleref_mode(mbmi->mode))
return 1;
else
return 0;
}
static INLINE int av1_allow_explicit_bawp(const MB_MODE_INFO *mbmi) {
return mbmi->mode == NEWMV || mbmi->mode == NEARMV;
}
// derive the context of the mpp_flag
int av1_get_mpp_flag_context(const AV1_COMMON *cm, const MACROBLOCKD *xd);
// derive the context of the precision signaling
int av1_get_pb_mv_precision_down_context(const AV1_COMMON *cm,
const MACROBLOCKD *xd);
// derive the context of the mv class
int av1_get_mv_class_context(const MvSubpelPrecision pb_mv_precision);
// set the precision of a block to the precision
void set_mv_precision(MB_MODE_INFO *mbmi, MvSubpelPrecision precision);
void set_amvd_mv_precision(MB_MODE_INFO *mbmi, MvSubpelPrecision precision);
// Function to check if precision need to be signaled or not
int is_intraBC_bv_precision_active(const AV1_COMMON *const cm,
const int intrabc_mode);
// Set max value as default precision
void set_default_intraBC_bv_precision(const AV1_COMMON *const cm,
MB_MODE_INFO *mbmi);
// set the most probable mv precision of the block
// Currently, the most probable MV precision is same as the maximum precision of
// the block.
void set_most_probable_mv_precision(const AV1_COMMON *const cm,
MB_MODE_INFO *mbmi, const BLOCK_SIZE bsize);
// Set the default value fo the precision set. Currently the value is always 0.
void set_default_precision_set(const AV1_COMMON *const cm, MB_MODE_INFO *mbmi,
const BLOCK_SIZE bsize);
// Set the precision set of the block. Currently, the value is 0.
void set_precision_set(const AV1_COMMON *const cm, MACROBLOCKD *const xd,
MB_MODE_INFO *mbmi, const BLOCK_SIZE bsize,
int *ref_mv_idx);
// Get the index of the precision
// this index is signalled when precision is not same as the most probable
// precision
int av1_get_pb_mv_precision_index(const MB_MODE_INFO *mbmi);
// get the actual precision value from the signalled index
MvSubpelPrecision av1_get_precision_from_index(MB_MODE_INFO *mbmi,
int precision_idx_coded_value);
// Set the maximum precision to the default value
void set_default_max_mv_precision(MB_MODE_INFO *mbmi,
MvSubpelPrecision precision);
// get the maximum allowed precision value of the block
MvSubpelPrecision av1_get_mbmi_max_mv_precision(const AV1_COMMON *const cm,
const SB_INFO *sbi,
const MB_MODE_INFO *mbmi);
// check if pb_mv_precision is allowed or not
int is_pb_mv_precision_active(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi, const BLOCK_SIZE bsize);
// check if the WARPMV mode is allwed for a given blocksize
static INLINE int is_warpmv_allowed_bsize(BLOCK_SIZE bsize) {
assert(bsize < BLOCK_SIZES_ALL);
return AOMMIN(block_size_wide[bsize], block_size_high[bsize]) >= 8;
}
// check if WARPMV mode is allowed
static INLINE int is_warpmv_mode_allowed(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi,
BLOCK_SIZE bsize) {
int frame_warp_delta_allowed =
(cm->features.enabled_motion_modes & (1 << WARP_DELTA)) != 0;
if (has_second_ref(mbmi) || !frame_warp_delta_allowed ||
is_tip_ref_frame(mbmi->ref_frame[0]) || !cm->features.allow_warpmv_mode)
return 0;
return frame_warp_delta_allowed && is_warpmv_allowed_bsize(bsize);
}
// check if warpmv with mvd is allowed or not
static INLINE int allow_warpmv_with_mvd_coding(const AV1_COMMON *const cm,
const MB_MODE_INFO *mbmi) {
if (!cm->features.allow_warpmv_mode) return 0;
return (mbmi->mode == WARPMV && mbmi->warp_ref_idx < 2);
}
// Return the threshold value for number of non-zero componenets for sign
// derivation.
static INLINE int get_derive_sign_nzero_th(const MB_MODE_INFO *mbmi) {
return (mbmi->mode == NEW_NEWMV || mbmi->mode == NEW_NEWMV_OPTFLOW) ? 4 : 1;
}
// Check if the sign derivation method is allowed or not for current block
static INLINE int is_mvd_sign_derive_allowed(const AV1_COMMON *const cm,
const MACROBLOCKD *const xd,
const MB_MODE_INFO *mbmi) {
if (!cm->seq_params.enable_mvd_sign_derive ||
mbmi->motion_mode != SIMPLE_TRANSLATION ||
is_intrabc_block(mbmi, xd->tree_type) ||
enable_adaptive_mvd_resolution(cm, mbmi) || mbmi->skip_mode ||
cm->features.allow_screen_content_tools ||
cm->features.fr_mv_precision > MV_PRECISION_QTR_PEL ||
mbmi->pb_mv_precision >= MV_PRECISION_QTR_PEL)
return 0;
if (has_second_ref(mbmi)) {
int drl_idx = mbmi->ref_mv_idx[0];
if (has_second_drl(mbmi)) {
drl_idx = AOMMAX(mbmi->ref_mv_idx[0], mbmi->ref_mv_idx[1]);
}
if (drl_idx > 0) return 0;
}
return (mbmi->mode == NEWMV || mbmi->mode == WARP_NEWMV ||
mbmi->mode == JOINT_NEWMV || mbmi->mode == JOINT_NEWMV_OPTFLOW ||
mbmi->mode == NEW_NEWMV || mbmi->mode == NEW_NEWMV_OPTFLOW);
}
void av1_build_linear_predictor(uint16_t *dst, const int dst_stride,
const int width, const int height,
const int alpha, const int beta,
const int bit_depth);
bool av1_build_morph_pred(const AV1_COMMON *const cm, MACROBLOCKD *const xd,
const BLOCK_SIZE bsize, const int mi_row,
const int mi_col);
static AOM_INLINE bool is_subblock_outside(int x, int y, int mi_cols,
int mi_rows, int build_for_decode) {
if (!build_for_decode) return 0;
return (x >= mi_cols * MI_SIZE || y >= mi_rows * MI_SIZE);
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_COMMON_RECONINTER_H_