| /* |
| * 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 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" |
| |
| // 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_TYPES 16 |
| |
| #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 |
| enum { |
| WEDGE_HORIZONTAL = 0, |
| WEDGE_VERTICAL = 1, |
| WEDGE_OBLIQUE27 = 2, |
| WEDGE_OBLIQUE63 = 3, |
| WEDGE_OBLIQUE117 = 4, |
| WEDGE_OBLIQUE153 = 5, |
| WEDGE_DIRECTIONS |
| } UENUM1BYTE(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 wedge_types; |
| const wedge_code_type *codebook; |
| uint8_t *signflip; |
| wedge_masks_type *masks; |
| } 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 pos_x; |
| int pos_y; |
| } SubpelParams; |
| |
| struct build_prediction_ctxt { |
| const AV1_COMMON *cm; |
| uint8_t **tmp_buf; |
| int *tmp_width; |
| int *tmp_height; |
| int *tmp_stride; |
| int mb_to_far_edge; |
| void *dcb; // Decoder-only coding block. |
| }; |
| |
| 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; |
| 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; |
| int use_hbd_buf; |
| INTERINTER_COMPOUND_DATA mask_comp; |
| BLOCK_SIZE sb_type; |
| int is_intrabc; |
| int top; |
| int left; |
| } InterPredParams; |
| |
| // Initialize sub-pel params required for inter prediction. |
| static AOM_INLINE void init_subpel_params( |
| const MV *const src_mv, InterPredParams *const inter_pred_params, |
| SubpelParams *subpel_params, int width, int height) { |
| const struct scale_factors *sf = inter_pred_params->scale_factors; |
| int ssx = inter_pred_params->subsampling_x; |
| int ssy = inter_pred_params->subsampling_y; |
| int orig_pos_y = inter_pred_params->pix_row << SUBPEL_BITS; |
| orig_pos_y += src_mv->row * (1 << (1 - ssy)); |
| int orig_pos_x = inter_pred_params->pix_col << SUBPEL_BITS; |
| orig_pos_x += src_mv->col * (1 << (1 - ssx)); |
| const int is_scaled = av1_is_scaled(sf); |
| int pos_x, pos_y; |
| if (LIKELY(!is_scaled)) { |
| pos_y = av1_unscaled_value(orig_pos_y, sf); |
| pos_x = av1_unscaled_value(orig_pos_x, sf); |
| } else { |
| pos_y = av1_scaled_y(orig_pos_y, sf); |
| pos_x = av1_scaled_x(orig_pos_x, sf); |
| } |
| |
| pos_x += SCALE_EXTRA_OFF; |
| pos_y += SCALE_EXTRA_OFF; |
| |
| const int bottom = (height + AOM_INTERP_EXTEND) << SCALE_SUBPEL_BITS; |
| const int right = (width + AOM_INTERP_EXTEND) << SCALE_SUBPEL_BITS; |
| pos_y = clamp(pos_y, inter_pred_params->top, bottom); |
| pos_x = clamp(pos_x, inter_pred_params->left, right); |
| |
| subpel_params->pos_x = pos_x; |
| subpel_params->pos_y = pos_y; |
| subpel_params->subpel_x = pos_x & SCALE_SUBPEL_MASK; |
| subpel_params->subpel_y = pos_y & SCALE_SUBPEL_MASK; |
| subpel_params->xs = sf->x_step_q4; |
| subpel_params->ys = sf->y_step_q4; |
| } |
| |
| // Initialize interp filter required for inter prediction. |
| static AOM_INLINE void init_interp_filter_params( |
| const InterpFilterParams *interp_filter_params[2], |
| const InterpFilters *filter, int block_width, int block_height, |
| int is_intrabc) { |
| if (UNLIKELY(is_intrabc)) { |
| interp_filter_params[0] = &av1_intrabc_filter_params; |
| interp_filter_params[1] = &av1_intrabc_filter_params; |
| } else { |
| interp_filter_params[0] = av1_get_interp_filter_params_with_block_size( |
| (InterpFilter)filter->x_filter, block_width); |
| interp_filter_params[1] = av1_get_interp_filter_params_with_block_size( |
| (InterpFilter)filter->y_filter, block_height); |
| } |
| } |
| |
| // Initialize parameters required for inter prediction at mode level. |
| static AOM_INLINE void init_inter_mode_params( |
| const MV *const src_mv, InterPredParams *const inter_pred_params, |
| SubpelParams *subpel_params, const struct scale_factors *sf, int width, |
| int height) { |
| inter_pred_params->scale_factors = sf; |
| init_subpel_params(src_mv, inter_pred_params, subpel_params, width, height); |
| } |
| |
| // Initialize parameters required for inter prediction at block level. |
| static AOM_INLINE void init_inter_block_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 use_hbd_buf, int is_intrabc) { |
| inter_pred_params->block_width = block_width; |
| inter_pred_params->block_height = block_height; |
| inter_pred_params->pix_row = pix_row; |
| inter_pred_params->pix_col = pix_col; |
| inter_pred_params->subsampling_x = subsampling_x; |
| inter_pred_params->subsampling_y = subsampling_y; |
| inter_pred_params->bit_depth = bit_depth; |
| inter_pred_params->use_hbd_buf = use_hbd_buf; |
| inter_pred_params->is_intrabc = is_intrabc; |
| inter_pred_params->mode = TRANSLATION_PRED; |
| inter_pred_params->comp_mode = UNIFORM_SINGLE; |
| inter_pred_params->top = -AOM_LEFT_TOP_MARGIN_SCALED(subsampling_y); |
| inter_pred_params->left = -AOM_LEFT_TOP_MARGIN_SCALED(subsampling_x); |
| } |
| |
| // Initialize params required for inter prediction. |
| static AOM_INLINE 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 use_hbd_buf, int is_intrabc, |
| const struct scale_factors *sf, const struct buf_2d *ref_buf, |
| int_interpfilters interp_filters) { |
| init_inter_block_params(inter_pred_params, block_width, block_height, pix_row, |
| pix_col, subsampling_x, subsampling_y, bit_depth, |
| use_hbd_buf, is_intrabc); |
| init_interp_filter_params(inter_pred_params->interp_filter_params, |
| &interp_filters.as_filters, block_width, |
| block_height, is_intrabc); |
| inter_pred_params->scale_factors = sf; |
| inter_pred_params->ref_frame_buf = *ref_buf; |
| } |
| |
| static AOM_INLINE void av1_init_comp_mode(InterPredParams *inter_pred_params) { |
| inter_pred_params->comp_mode = UNIFORM_COMP; |
| } |
| |
| 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 inter_predictor( |
| const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, |
| const SubpelParams *subpel_params, int w, int h, |
| ConvolveParams *conv_params, const InterpFilterParams *interp_filters[2]) { |
| 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) { |
| 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); |
| } 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); |
| } |
| } |
| |
| static INLINE void highbd_inter_predictor( |
| const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, |
| const SubpelParams *subpel_params, int w, int h, |
| ConvolveParams *conv_params, const InterpFilterParams *interp_filters[2], |
| int bd) { |
| 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) { |
| 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); |
| } 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); |
| } |
| } |
| |
| 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_DISTWTD: |
| case COMPOUND_DIFFWTD: return comp_allowed; |
| 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 uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, |
| InterPredParams *inter_pred_params, |
| const SubpelParams *subpel_params); |
| void av1_make_masked_inter_predictor(const uint8_t *pre, int pre_stride, |
| uint8_t *dst, int dst_stride, |
| InterPredParams *inter_pred_params, |
| const SubpelParams *subpel_params); |
| |
| // 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); |
| 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; |
| } |
| |
| static INLINE int64_t scaled_buffer_offset(int x_offset, int y_offset, |
| int stride, |
| const struct scale_factors *sf) { |
| int x, y; |
| if (!sf) { |
| x = x_offset; |
| y = y_offset; |
| } else if (av1_is_scaled(sf)) { |
| x = av1_scaled_x(x_offset, sf) >> SCALE_EXTRA_BITS; |
| y = av1_scaled_y(y_offset, sf) >> SCALE_EXTRA_BITS; |
| } else { |
| x = av1_unscaled_value(x_offset, sf) >> SCALE_EXTRA_BITS; |
| y = av1_unscaled_value(y_offset, sf) >> SCALE_EXTRA_BITS; |
| } |
| return (int64_t)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); |
| |
| 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; |
| } |
| |
| // Sets up buffers 'dst_buf1' and 'dst_buf2' from relevant buffers in 'xd' for |
| // subsequent use in OBMC prediction. |
| void av1_setup_obmc_dst_bufs(MACROBLOCKD *xd, uint8_t **dst_buf1, |
| uint8_t **dst_buf2); |
| |
| 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_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 uint8_t *av1_get_obmc_mask(int length); |
| void av1_count_overlappable_neighbors(const AV1_COMMON *cm, MACROBLOCKD *xd); |
| |
| #define MASK_MASTER_SIZE ((MAX_WEDGE_SIZE) << 1) |
| #define MASK_MASTER_STRIDE (MASK_MASTER_SIZE) |
| |
| void av1_init_wedge_masks(void); |
| |
| static INLINE const uint8_t *av1_get_contiguous_soft_mask(int8_t wedge_index, |
| int8_t wedge_sign, |
| BLOCK_SIZE sb_type) { |
| return av1_wedge_params_lookup[sb_type].masks[wedge_sign][wedge_index]; |
| } |
| |
| void av1_dist_wtd_comp_weight_assign(const AV1_COMMON *cm, |
| const MB_MODE_INFO *mbmi, int *fwd_offset, |
| int *bck_offset, |
| int *use_dist_wtd_comp_avg, |
| int is_compound); |
| |
| const uint8_t *av1_get_compound_type_mask( |
| const INTERINTER_COMPOUND_DATA *const comp_data, BLOCK_SIZE sb_type); |
| |
| // build interintra_predictors for one plane |
| void av1_build_interintra_predictor(const AV1_COMMON *cm, MACROBLOCKD *xd, |
| uint8_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, |
| BLOCK_SIZE bsize, int plane, |
| const BUFFER_SET *ctx, |
| uint8_t *dst, int dst_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); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_RECONINTER_H_ |