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Dactyloidae/third_party/aom/av1/common/reconinter.h

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/*
* 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.
*/
#ifndef AV1_COMMON_RECONINTER_H_
#define AV1_COMMON_RECONINTER_H_
#include "av1/common/filter.h"
#include "av1/common/onyxc_int.h"
#include "av1/common/convolve.h"
#include "av1/common/warped_motion.h"
#include "aom/aom_integer.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
// Set to (1 << 5) if the 32-ary codebooks are used for any bock size
#define MAX_WEDGE_TYPES (1 << 4)
#define MAX_WEDGE_SIZE_LOG2 5 // 32x32
#define MAX_WEDGE_SIZE (1 << MAX_WEDGE_SIZE_LOG2)
#define MAX_WEDGE_SQUARE (MAX_WEDGE_SIZE * MAX_WEDGE_SIZE)
#define WEDGE_WEIGHT_BITS 6
#define WEDGE_NONE -1
// Angles are with respect to horizontal anti-clockwise
typedef enum {
WEDGE_HORIZONTAL = 0,
WEDGE_VERTICAL = 1,
WEDGE_OBLIQUE27 = 2,
WEDGE_OBLIQUE63 = 3,
WEDGE_OBLIQUE117 = 4,
WEDGE_OBLIQUE153 = 5,
WEDGE_DIRECTIONS
} WedgeDirectionType;
// 3-tuple: {direction, x_offset, y_offset}
typedef struct {
WedgeDirectionType direction;
int x_offset;
int y_offset;
} wedge_code_type;
typedef uint8_t *wedge_masks_type[MAX_WEDGE_TYPES];
typedef struct {
int bits;
const wedge_code_type *codebook;
uint8_t *signflip;
wedge_masks_type *masks;
} wedge_params_type;
extern const wedge_params_type wedge_params_lookup[BLOCK_SIZES_ALL];
typedef struct SubpelParams {
int xs;
int ys;
int subpel_x;
int subpel_y;
} SubpelParams;
struct build_prediction_ctxt {
const AV1_COMMON *cm;
int mi_row;
int mi_col;
uint8_t **tmp_buf;
int *tmp_width;
int *tmp_height;
int *tmp_stride;
int mb_to_far_edge;
};
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 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,
InterpFilters interp_filters) {
assert(conv_params->do_average == 0 || conv_params->do_average == 1);
assert(sf);
if (has_scale(subpel_params->xs, subpel_params->ys)) {
av1_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, sf);
} else {
SubpelParams sp = *subpel_params;
revert_scale_extra_bits(&sp);
av1_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, sf);
}
}
static INLINE void highbd_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, InterpFilters interp_filters, int bd) {
assert(conv_params->do_average == 0 || conv_params->do_average == 1);
assert(sf);
if (has_scale(subpel_params->xs, subpel_params->ys)) {
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, sf, bd);
} 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, sf, bd);
}
}
void av1_modify_neighbor_predictor_for_obmc(MB_MODE_INFO *mbmi);
int av1_skip_u4x4_pred_in_obmc(BLOCK_SIZE bsize,
const struct macroblockd_plane *pd, int dir);
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:
case COMPOUND_DIFFWTD: return comp_allowed;
case COMPOUND_WEDGE:
return comp_allowed && wedge_params_lookup[sb_type].bits > 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_bits_lookup(BLOCK_SIZE sb_type) {
return wedge_params_lookup[sb_type].bits;
}
static INLINE int get_interinter_wedge_bits(BLOCK_SIZE sb_type) {
const int wbits = wedge_params_lookup[sb_type].bits;
return (wbits > 0) ? wbits + 1 : 0;
}
static INLINE int is_interintra_wedge_used(BLOCK_SIZE sb_type) {
return wedge_params_lookup[sb_type].bits > 0;
}
static INLINE int get_interintra_wedge_bits(BLOCK_SIZE sb_type) {
return wedge_params_lookup[sb_type].bits;
}
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,
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);
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, InterpFilters interp_filters, int plane,
const WarpTypesAllowed *warp_types, int p_col, int p_row, int ref,
MACROBLOCKD *xd, int can_use_previous);
// 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 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 = { (int16_t)(src_mv->row * (1 << (1 - ss_y))),
(int16_t)(src_mv->col * (1 << (1 - ss_x))) };
assert(ss_x <= 1);
assert(ss_y <= 1);
clamp_mv(&clamped_mv, 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);
return clamped_mv;
}
void av1_build_inter_predictors_sby(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col, BUFFER_SET *ctx,
BLOCK_SIZE bsize);
void av1_build_inter_predictors_sbuv(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col, BUFFER_SET *ctx,
BLOCK_SIZE bsize);
void av1_build_inter_predictors_sb(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col, BUFFER_SET *ctx,
BLOCK_SIZE bsize);
void av1_build_inter_predictor(const uint8_t *src, int src_stride, uint8_t *dst,
int dst_stride, const MV *src_mv,
const struct scale_factors *sf, int w, int h,
ConvolveParams *conv_params,
InterpFilters interp_filters,
const WarpTypesAllowed *warp_types, int p_col,
int p_row, int plane, int ref,
enum mv_precision precision, int x, int y,
const MACROBLOCKD *xd, int can_use_previous);
void av1_highbd_build_inter_predictor(
const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride,
const MV *mv_q3, const struct scale_factors *sf, int w, int h, int do_avg,
InterpFilters interp_filters, const WarpTypesAllowed *warp_types, int p_col,
int p_row, int plane, enum mv_precision precision, int x, int y,
const MACROBLOCKD *xd, int can_use_previous);
static INLINE int 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 y * stride + x;
}
static INLINE void setup_pred_plane(struct buf_2d *dst, BLOCK_SIZE bsize,
uint8_t *src, int width, int height,
int stride, int mi_row, int mi_col,
const struct scale_factors *scale,
int subsampling_x, int subsampling_y) {
// Offset the buffer pointer
if (subsampling_y && (mi_row & 0x01) && (mi_size_high[bsize] == 1))
mi_row -= 1;
if (subsampling_x && (mi_col & 0x01) && (mi_size_wide[bsize] == 1))
mi_col -= 1;
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->stride = stride;
}
void av1_setup_dst_planes(struct macroblockd_plane *planes, BLOCK_SIZE bsize,
const YV12_BUFFER_CONFIG *src, int mi_row, int mi_col,
const int plane_start, const int plane_end);
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);
// Detect if the block have sub-pixel level motion vectors
// per component.
#define CHECK_SUBPEL 0
static INLINE int has_subpel_mv_component(const MB_MODE_INFO *const mbmi,
const MACROBLOCKD *const xd,
int dir) {
#if CHECK_SUBPEL
const BLOCK_SIZE bsize = mbmi->sb_type;
int plane;
int ref = (dir >> 1);
if (dir & 0x01) {
if (mbmi->mv[ref].as_mv.col & SUBPEL_MASK) return 1;
} else {
if (mbmi->mv[ref].as_mv.row & SUBPEL_MASK) return 1;
}
return 0;
#else
(void)mbmi;
(void)xd;
(void)dir;
return 1;
#endif
}
static INLINE void set_default_interp_filters(
MB_MODE_INFO *const mbmi, InterpFilter frame_interp_filter) {
mbmi->interp_filters =
av1_broadcast_interp_filter(av1_unswitchable_filter(frame_interp_filter));
}
static INLINE int av1_is_interp_needed(const MACROBLOCKD *const xd) {
const MB_MODE_INFO *const mbmi = xd->mi[0];
if (mbmi->skip_mode) return 0;
if (mbmi->motion_mode == WARPED_CAUSAL) return 0;
if (is_nontrans_global_motion(xd, xd->mi[0])) return 0;
return 1;
}
static INLINE int av1_is_interp_search_needed(const MACROBLOCKD *const xd) {
MB_MODE_INFO *const mi = xd->mi[0];
const int is_compound = has_second_ref(mi);
int ref;
for (ref = 0; ref < 1 + is_compound; ++ref) {
int row_col;
for (row_col = 0; row_col < 2; ++row_col) {
const int dir = (ref << 1) + row_col;
if (has_subpel_mv_component(mi, xd, dir)) {
return 1;
}
}
}
return 0;
}
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);
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);
void av1_build_prediction_by_above_preds(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col,
uint8_t *tmp_buf[MAX_MB_PLANE],
int tmp_width[MAX_MB_PLANE],
int tmp_height[MAX_MB_PLANE],
int tmp_stride[MAX_MB_PLANE]);
void av1_build_prediction_by_left_preds(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col,
uint8_t *tmp_buf[MAX_MB_PLANE],
int tmp_width[MAX_MB_PLANE],
int tmp_height[MAX_MB_PLANE],
int tmp_stride[MAX_MB_PLANE]);
void av1_build_obmc_inter_prediction(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col,
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 uint8_t *av1_get_obmc_mask(int length);
void av1_count_overlappable_neighbors(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col);
void av1_build_obmc_inter_predictors_sb(const AV1_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col);
#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_contiguous_soft_mask(int wedge_index,
int wedge_sign,
BLOCK_SIZE sb_type) {
return wedge_params_lookup[sb_type].masks[wedge_sign][wedge_index];
}
const uint8_t *av1_get_compound_type_mask(
const INTERINTER_COMPOUND_DATA *const comp_data, BLOCK_SIZE sb_type);
void av1_build_interintra_predictors(const AV1_COMMON *cm, MACROBLOCKD *xd,
uint8_t *ypred, uint8_t *upred,
uint8_t *vpred, int ystride, int ustride,
int vstride, BUFFER_SET *ctx,
BLOCK_SIZE bsize);
// build interintra_predictors for one plane
void av1_build_interintra_predictors_sbp(const AV1_COMMON *cm, MACROBLOCKD *xd,
uint8_t *pred, int stride,
BUFFER_SET *ctx, int plane,
BLOCK_SIZE bsize);
void av1_build_interintra_predictors_sbuv(const AV1_COMMON *cm, MACROBLOCKD *xd,
uint8_t *upred, uint8_t *vpred,
int ustride, int vstride,
BUFFER_SET *ctx, BLOCK_SIZE bsize);
void av1_build_intra_predictors_for_interintra(
const AV1_COMMON *cm, MACROBLOCKD *xd, BLOCK_SIZE bsize, int plane,
BUFFER_SET *ctx, uint8_t *intra_pred, int intra_stride);
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);
// Encoder only
void av1_build_inter_predictors_for_planes_single_buf(
MACROBLOCKD *xd, BLOCK_SIZE bsize, int plane_from, int plane_to, int mi_row,
int mi_col, int ref, uint8_t *ext_dst[3], int ext_dst_stride[3],
int can_use_previous);
void av1_build_wedge_inter_predictor_from_buf(MACROBLOCKD *xd, BLOCK_SIZE bsize,
int plane_from, int plane_to,
uint8_t *ext_dst0[3],
int ext_dst_stride0[3],
uint8_t *ext_dst1[3],
int ext_dst_stride1[3]);
void av1_jnt_comp_weight_assign(const AV1_COMMON *cm, const MB_MODE_INFO *mbmi,
int order_idx, int *fwd_offset, int *bck_offset,
int *use_jnt_comp_avg, int is_compound);
int av1_allow_warp(const MB_MODE_INFO *const mbmi,
const WarpTypesAllowed *const warp_types,
const WarpedMotionParams *const gm_params,
int build_for_obmc, int x_scale, int y_scale,
WarpedMotionParams *final_warp_params);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AV1_COMMON_RECONINTER_H_
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