| /* |
| * 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_MVREF_COMMON_H_ |
| #define AOM_AV1_COMMON_MVREF_COMMON_H_ |
| |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/blockd.h" |
| #if CONFIG_FLEX_MVRES |
| #include "av1/common/mv.h" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if CONFIG_SMVP_IMPROVEMENT |
| #define MVREF_ROWS 1 |
| #define MVREF_COLS 3 |
| #else |
| #define MVREF_ROW_COLS 3 |
| #endif // CONFIG_SMVP_IMPROVEMENT |
| |
| // Set the upper limit of the motion vector component magnitude. |
| // This would make a motion vector fit in 26 bits. Plus 3 bits for the |
| // reference frame index. A tuple of motion vector can hence be stored within |
| // 32 bit range for efficient load/store operations. |
| #define REFMVS_LIMIT ((1 << 12) - 1) |
| |
| typedef struct position { |
| int row; |
| int col; |
| } POSITION; |
| |
| #if CONFIG_TIP |
| #define MAX_OFFSET_WIDTH 64 |
| #define MAX_OFFSET_HEIGHT 0 |
| #define MAX_OFFSET_HEIGHT_LOG2 (MAX_OFFSET_HEIGHT >> TMVP_MI_SZ_LOG2) |
| #define MAX_OFFSET_WIDTH_LOG2 (MAX_OFFSET_WIDTH >> TMVP_MI_SZ_LOG2) |
| static AOM_INLINE int get_block_position(AV1_COMMON *cm, int *mi_r, int *mi_c, |
| int blk_row, int blk_col, MV mv, |
| int sign_bias) { |
| const int base_blk_row = (blk_row >> TMVP_MI_SZ_LOG2) << TMVP_MI_SZ_LOG2; |
| const int base_blk_col = (blk_col >> TMVP_MI_SZ_LOG2) << TMVP_MI_SZ_LOG2; |
| |
| // The motion vector in units of 1/8-pel |
| const int shift = (3 + TMVP_MI_SZ_LOG2); |
| const int row_offset = |
| (mv.row >= 0) ? (mv.row >> shift) : -((-mv.row) >> shift); |
| |
| const int col_offset = |
| (mv.col >= 0) ? (mv.col >> shift) : -((-mv.col) >> shift); |
| |
| const int row = |
| (sign_bias == 1) ? blk_row - row_offset : blk_row + row_offset; |
| const int col = |
| (sign_bias == 1) ? blk_col - col_offset : blk_col + col_offset; |
| |
| if (row < 0 || row >= (cm->mi_params.mi_rows >> TMVP_SHIFT_BITS) || col < 0 || |
| col >= (cm->mi_params.mi_cols >> TMVP_SHIFT_BITS)) |
| return 0; |
| |
| if (row < base_blk_row - MAX_OFFSET_HEIGHT_LOG2 || |
| row >= base_blk_row + TMVP_MI_SIZE + MAX_OFFSET_HEIGHT_LOG2 || |
| col < base_blk_col - MAX_OFFSET_WIDTH_LOG2 || |
| col >= base_blk_col + TMVP_MI_SIZE + MAX_OFFSET_WIDTH_LOG2) |
| return 0; |
| |
| *mi_r = row; |
| *mi_c = col; |
| |
| return 1; |
| } |
| #endif // CONFIG_TIP |
| |
| // clamp_mv_ref |
| #define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units |
| |
| static INLINE int get_relative_dist(const OrderHintInfo *oh, int a, int b) { |
| if (!oh->enable_order_hint) return 0; |
| |
| const int bits = oh->order_hint_bits_minus_1 + 1; |
| |
| assert(bits >= 1); |
| assert(a >= 0 && a < (1 << bits)); |
| assert(b >= 0 && b < (1 << bits)); |
| |
| int diff = a - b; |
| const int m = 1 << (bits - 1); |
| diff = (diff & (m - 1)) - (diff & m); |
| return diff; |
| } |
| |
| static INLINE void clamp_mv_ref(MV *mv, int bw, int bh, const MACROBLOCKD *xd) { |
| const SubpelMvLimits mv_limits = { |
| xd->mb_to_left_edge - GET_MV_SUBPEL(bw) - MV_BORDER, |
| xd->mb_to_right_edge + GET_MV_SUBPEL(bw) + MV_BORDER, |
| xd->mb_to_top_edge - GET_MV_SUBPEL(bh) - MV_BORDER, |
| xd->mb_to_bottom_edge + GET_MV_SUBPEL(bh) + MV_BORDER |
| }; |
| clamp_mv(mv, &mv_limits); |
| } |
| // Convert a global motion vector into a motion vector at the centre of the |
| // given block. |
| // |
| // The resulting motion vector will have three fractional bits of precision. If |
| // precision < MV_SUBPEL_EIGHTH, the bottom bit will always be zero. If |
| // CONFIG_AMVR and precision == MV_SUBPEL_NONE, the bottom three bits will be |
| // zero (so the motion vector represents an integer) |
| #if CONFIG_FLEX_MVRES |
| static INLINE int_mv get_warp_motion_vector(const MACROBLOCKD *xd, |
| const WarpedMotionParams *model, |
| MvSubpelPrecision precision, |
| BLOCK_SIZE bsize, int mi_col, |
| int mi_row) { |
| #else |
| static INLINE int_mv get_warp_motion_vector(const MACROBLOCKD *xd, |
| const WarpedMotionParams *model, |
| int allow_hp, BLOCK_SIZE bsize, |
| int mi_col, int mi_row, |
| int is_integer) { |
| #endif |
| int_mv res; |
| |
| if (model->wmtype == IDENTITY) { |
| res.as_int = 0; |
| return res; |
| } |
| |
| const int32_t *mat = model->wmmat; |
| int x, y, tx, ty; |
| |
| if (model->wmtype == TRANSLATION) { |
| // All global motion vectors are stored with WARPEDMODEL_PREC_BITS (16) |
| // bits of fractional precision. The offset for a translation is stored in |
| // entries 0 and 1. For translations, all but the top three (two if |
| // precision < MV_SUBPEL_EIGHTH) fractional bits are always |
| // zero. |
| // |
| #if CONFIG_FLEX_MVRES |
| // After the right shifts, there are 3 fractional bits of precision. If |
| // precision < MV_SUBPEL_EIGHTH is false, the bottom bit is always zero |
| // (so we don't need a call to convert_to_trans_prec here) |
| res.as_mv.col = model->wmmat[0] >> WARPEDMODEL_TO_MV_SHIFT; |
| res.as_mv.row = model->wmmat[1] >> WARPEDMODEL_TO_MV_SHIFT; |
| |
| clamp_mv_ref(&res.as_mv, xd->width << MI_SIZE_LOG2, |
| xd->height << MI_SIZE_LOG2, xd); |
| |
| // When extended warp prediction is enabled, the warp model can be derived |
| // from the neighbor. Neighbor may have different MV precision than current |
| // block. Therefore, this assertion is not valid when |
| // CONFIG_EXTENDED_WARP_PREDICTION is enabled |
| // When subblock warp mv is enabled. The precision is kept as higherst |
| // regardless the frame level mv during search |
| #if !CONFIG_EXTENDED_WARP_PREDICTION && !CONFIG_C071_SUBBLK_WARPMV |
| assert(IMPLIES(1 & (res.as_mv.row | res.as_mv.col), |
| precision == MV_PRECISION_ONE_EIGHTH_PEL)); |
| #endif |
| #if CONFIG_C071_SUBBLK_WARPMV |
| if (precision < MV_PRECISION_HALF_PEL) |
| #endif // CONFIG_C071_SUBBLK_WARPMV |
| lower_mv_precision(&res.as_mv, precision); |
| #else |
| // After the right shifts, there are 3 fractional bits of precision. If |
| // allow_hp is false, the bottom bit is always zero (so we don't need a |
| // call to convert_to_trans_prec here) |
| res.as_mv.col = model->wmmat[0] >> WARPEDMODEL_TO_MV_SHIFT; |
| res.as_mv.row = model->wmmat[1] >> WARPEDMODEL_TO_MV_SHIFT; |
| clamp_mv_ref(&res.as_mv, xd->width << MI_SIZE_LOG2, |
| xd->height << MI_SIZE_LOG2, xd); |
| #if !CONFIG_EXTENDED_WARP_PREDICTION && !CONFIG_C071_SUBBLK_WARPMV |
| assert(IMPLIES(1 & (res.as_mv.row | res.as_mv.col), allow_hp)); |
| #endif |
| if (is_integer) { |
| integer_mv_precision(&res.as_mv); |
| } |
| #endif |
| return res; |
| } |
| |
| x = block_center_x(mi_col, bsize); |
| y = block_center_y(mi_row, bsize); |
| |
| if (model->wmtype == ROTZOOM) { |
| assert(model->wmmat[5] == model->wmmat[2]); |
| assert(model->wmmat[4] == -model->wmmat[3]); |
| } |
| |
| const int xc = |
| (mat[2] - (1 << WARPEDMODEL_PREC_BITS)) * x + mat[3] * y + mat[0]; |
| const int yc = |
| mat[4] * x + (mat[5] - (1 << WARPEDMODEL_PREC_BITS)) * y + mat[1]; |
| #if CONFIG_FLEX_MVRES |
| tx = convert_to_trans_prec(precision, xc); |
| ty = convert_to_trans_prec(precision, yc); |
| #else |
| tx = convert_to_trans_prec(allow_hp, xc); |
| ty = convert_to_trans_prec(allow_hp, yc); |
| #endif |
| |
| res.as_mv.row = clamp(ty, MV_LOW + 1, MV_UPP - 1); |
| res.as_mv.col = clamp(tx, MV_LOW + 1, MV_UPP - 1); |
| |
| clamp_mv_ref(&res.as_mv, xd->width << MI_SIZE_LOG2, |
| xd->height << MI_SIZE_LOG2, xd); |
| |
| #if CONFIG_FLEX_MVRES |
| #if CONFIG_C071_SUBBLK_WARPMV |
| if (precision < MV_PRECISION_HALF_PEL) |
| #endif // CONFIG_C071_SUBBLK_WARPMV |
| lower_mv_precision(&res.as_mv, precision); |
| #else |
| if (is_integer) { |
| integer_mv_precision(&res.as_mv); |
| } |
| #endif |
| return res; |
| } |
| |
| static INLINE int_mv get_block_mv(const MB_MODE_INFO *candidate, |
| #if CONFIG_C071_SUBBLK_WARPMV |
| const SUBMB_INFO *submi, |
| #endif // CONFIG_C071_SUBBLK_WARPMV |
| int which_mv) { |
| #if CONFIG_C071_SUBBLK_WARPMV |
| return is_warp_mode(candidate->motion_mode) ? submi->mv[which_mv] |
| : candidate->mv[which_mv]; |
| #else |
| return candidate->mv[which_mv]; |
| #endif // CONFIG_C071_SUBBLK_WARPMV |
| } |
| #if CONFIG_WARPMV |
| // return derive MV from the ref_warp_model |
| // ref_warp_model is extracted from the WRL listb before calling this function |
| static INLINE int_mv get_mv_from_wrl(const MACROBLOCKD *xd, |
| const WarpedMotionParams *ref_warp_model, |
| #if CONFIG_FLEX_MVRES |
| MvSubpelPrecision pb_mv_precision, |
| #else |
| int allow_high_precision_mv, |
| int cur_frame_force_integer_mv, |
| #endif |
| BLOCK_SIZE bsize, int mi_col, int mi_row) { |
| int_mv mv; |
| assert(ref_warp_model); |
| mv = get_warp_motion_vector(xd, ref_warp_model, |
| #if CONFIG_FLEX_MVRES |
| pb_mv_precision, |
| #else |
| allow_high_precision_mv, |
| #endif |
| bsize, mi_col, mi_row |
| #if !CONFIG_FLEX_MVRES |
| , |
| cur_frame_force_integer_mv |
| #endif |
| ); |
| return mv; |
| } |
| #endif // CONFIG_WARPMV |
| |
| // Checks that the given mi_row, mi_col and search point |
| // are inside the borders of the tile. |
| static INLINE int is_inside(const TileInfo *const tile, int mi_col, int mi_row, |
| const POSITION *mi_pos) { |
| return !(mi_row + mi_pos->row < tile->mi_row_start || |
| mi_col + mi_pos->col < tile->mi_col_start || |
| mi_row + mi_pos->row >= tile->mi_row_end || |
| mi_col + mi_pos->col >= tile->mi_col_end); |
| } |
| |
| static INLINE int find_valid_row_offset(const TileInfo *const tile, int mi_row, |
| int row_offset) { |
| return clamp(row_offset, tile->mi_row_start - mi_row, |
| tile->mi_row_end - mi_row - 1); |
| } |
| |
| static INLINE int find_valid_col_offset(const TileInfo *const tile, int mi_col, |
| int col_offset) { |
| return clamp(col_offset, tile->mi_col_start - mi_col, |
| tile->mi_col_end - mi_col - 1); |
| } |
| #if !CONFIG_FLEX_MVRES |
| static INLINE void lower_mv_precision(MV *mv, int allow_hp, int is_integer) { |
| if (is_integer) { |
| integer_mv_precision(mv); |
| } else { |
| if (!allow_hp) { |
| if (mv->row & 1) mv->row += (mv->row > 0 ? -1 : 1); |
| if (mv->col & 1) mv->col += (mv->col > 0 ? -1 : 1); |
| } |
| } |
| } |
| #endif |
| |
| #if CONFIG_ALLOW_SAME_REF_COMPOUND |
| // Converts a pair of distinct indices (rf) each in [0, n-1], |
| // to a combined index in [0, n*(n+1)/2]. |
| // The order of the combined index is as follows: |
| // (0, 0), (0, 1), (0, 2), (0, 3), ..., (0, n-1), |
| // (1, 1), (1, 2), (1, 3), ..., (1, n-1), |
| // (2, 2), (2, 3), ..., (2, n-1), |
| // ... |
| // (n-1, n-1) |
| static INLINE int8_t single2comb(int n, const int8_t *const rf) { |
| assert(rf[0] < n && rf[1] < n); |
| |
| int8_t rfr[2] = { rf[0], rf[1] }; |
| if (rf[1] < rf[0]) { |
| rfr[0] = rf[1]; |
| rfr[1] = rf[0]; |
| } |
| int off = (n + 1) * rfr[0] - rfr[0] * (rfr[0] + 1) / 2; |
| int combindex = off + rfr[1] - rfr[0]; |
| assert(combindex >= 0 && |
| combindex < (INTER_REFS_PER_FRAME * (INTER_REFS_PER_FRAME + 1) / 2)); |
| return combindex; |
| } |
| |
| // Converts a combined index in [0, n*(n+1)/2] to a pair of single |
| // ref indices (rf) each in [0, n-1]. See comment above for order |
| // of the combined indexing. |
| static INLINE void comb2single(int n, int8_t combindex, int8_t *rf) { |
| assert(combindex < n * (n + 1) / 2); |
| int i = n, j = n; |
| rf[0] = 0; |
| // Starting form n-1, keep reducing the row length by 1 until |
| // combindex < i |
| while (i <= combindex) { |
| rf[0]++; |
| j--; |
| i += j; |
| } |
| rf[1] = combindex - i + j + rf[0]; |
| assert(rf[0] >= 0); |
| assert(rf[1] >= rf[0]); |
| } |
| #else |
| // Converts a pair of distinct indices (rf) each in [0, n-1], |
| // to a combined index in [0, n*(n-1)/2]. |
| // The order of the combined index is as follows: |
| // (0, 1), (0, 2), (0, 3), ..., (0, n-1), |
| // (1, 2), (1, 3), ..., (1, n-1), |
| // (2, 3), ..., (2, n-1), |
| // ... |
| // (n-2, n-1) |
| static INLINE int8_t single2comb(int n, const int8_t *const rf) { |
| assert(rf[0] < n && rf[1] < n); |
| int8_t rfr[2] = { rf[0], rf[1] }; |
| if (rf[1] < rf[0]) { |
| rfr[0] = rf[1]; |
| rfr[1] = rf[0]; |
| } |
| int off = n * rfr[0] - rfr[0] * (rfr[0] + 1) / 2; |
| int combindex = off + rfr[1] - rfr[0] - 1; |
| return combindex; |
| } |
| |
| // Converts a combined index in [0, n*(n-1)/2] to a pair of single |
| // ref indices (rf) each in [0, n-1]. See comment above for order |
| // of the combined indexing. |
| static INLINE void comb2single(int n, int8_t combindex, int8_t *rf) { |
| assert(combindex < n * (n - 1) / 2); |
| int i = n - 1, j = n - 1; |
| rf[0] = 0; |
| // Starting form n-1, keep reducing the row length by 1 until |
| // combindex < i |
| while (i <= combindex) { |
| rf[0]++; |
| j--; |
| i += j; |
| } |
| rf[1] = combindex - i + j + rf[0] + 1; |
| assert(rf[1] > rf[0]); |
| } |
| #endif // CONFIG_ALLOW_SAME_REF_COMPOUND |
| |
| static INLINE int8_t av1_ref_frame_type(const MV_REFERENCE_FRAME *const rf) { |
| if (!is_inter_ref_frame(rf[0])) { |
| // Intra or invalid |
| return rf[0]; |
| } else if (!is_inter_ref_frame(rf[1])) { |
| // single ref |
| return rf[0]; |
| } else { |
| // compound ref |
| assert(rf[0] < INTER_REFS_PER_FRAME); |
| assert(rf[1] < INTER_REFS_PER_FRAME); |
| return single2comb(INTER_REFS_PER_FRAME, rf) + INTER_REFS_PER_FRAME; |
| } |
| } |
| |
| static INLINE void av1_set_ref_frame(MV_REFERENCE_FRAME *rf, |
| MV_REFERENCE_FRAME ref_frame_type) { |
| if (ref_frame_type == INTRA_FRAME || |
| #if CONFIG_TIP |
| is_tip_ref_frame(ref_frame_type) || |
| #endif // CONFIG_TIP |
| ref_frame_type < INTER_REFS_PER_FRAME) { |
| rf[0] = ref_frame_type; |
| rf[1] = NONE_FRAME; |
| } else { |
| comb2single(INTER_REFS_PER_FRAME, ref_frame_type - INTER_REFS_PER_FRAME, |
| rf); |
| } |
| return; |
| } |
| |
| #if !CONFIG_C076_INTER_MOD_CTX |
| static uint16_t compound_mode_ctx_map[3][COMP_NEWMV_CTXS] = { |
| { 0, 1, 1, 1, 1 }, |
| { 1, 2, 3, 4, 4 }, |
| { 4, 4, 5, 6, 7 }, |
| }; |
| #endif // !CONFIG_C076_INTER_MOD_CTX |
| |
| static INLINE int16_t av1_mode_context_pristine( |
| const int16_t *const mode_context, const MV_REFERENCE_FRAME *const rf) { |
| const int8_t ref_frame = av1_ref_frame_type(rf); |
| return mode_context[ref_frame]; |
| } |
| |
| static INLINE int16_t av1_mode_context_analyzer( |
| const int16_t *const mode_context, const MV_REFERENCE_FRAME *const rf) { |
| const int8_t ref_frame = av1_ref_frame_type(rf); |
| |
| if (!is_inter_ref_frame(rf[1])) return mode_context[ref_frame]; |
| |
| const int16_t newmv_ctx = mode_context[ref_frame] & NEWMV_CTX_MASK; |
| #if CONFIG_C076_INTER_MOD_CTX |
| const int16_t comp_ctx = newmv_ctx; |
| #else |
| const int16_t refmv_ctx = |
| (mode_context[ref_frame] >> REFMV_OFFSET) & REFMV_CTX_MASK; |
| |
| const int16_t comp_ctx = compound_mode_ctx_map[refmv_ctx >> 1][AOMMIN( |
| newmv_ctx, COMP_NEWMV_CTXS - 1)]; |
| #endif // CONFIG_C076_INTER_MOD_CTX |
| return comp_ctx; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_drl_cdf(FRAME_CONTEXT *ec_ctx, |
| const uint16_t *ref_mv_weight, |
| const int16_t mode_ctx, |
| int ref_idx) { |
| (void)ref_mv_weight; |
| const int ctx = av1_drl_ctx(mode_ctx); |
| switch (ref_idx) { |
| case 0: return ec_ctx->drl_cdf[0][ctx]; |
| case 1: return ec_ctx->drl_cdf[1][ctx]; |
| default: return ec_ctx->drl_cdf[2][ctx]; |
| } |
| } |
| #if CONFIG_WARP_REF_LIST |
| // Get the cdf of the warp_ref_idx |
| static INLINE aom_cdf_prob *av1_get_warp_ref_idx_cdf(FRAME_CONTEXT *ec_ctx, |
| int bit_idx) { |
| const int ctx = 0; |
| switch (bit_idx) { |
| case 0: return ec_ctx->warp_ref_idx_cdf[0][ctx]; |
| case 1: return ec_ctx->warp_ref_idx_cdf[1][ctx]; |
| default: return ec_ctx->warp_ref_idx_cdf[2][ctx]; |
| } |
| } |
| #endif // CONFIG_WARP_REF_LIST |
| // TODO(jingning): Consider the use of lookup table for (num / den) |
| // altogether. |
| static int div_mult[32] = { 0, 16384, 8192, 5461, 4096, 3276, 2730, 2340, |
| 2048, 1820, 1638, 1489, 1365, 1260, 1170, 1092, |
| 1024, 963, 910, 862, 819, 780, 744, 712, |
| 682, 655, 630, 606, 585, 564, 546, 528 }; |
| static AOM_INLINE void get_mv_projection(MV *output, MV ref, int num, int den) { |
| den = AOMMIN(den, MAX_FRAME_DISTANCE); |
| num = num > 0 ? AOMMIN(num, MAX_FRAME_DISTANCE) |
| : AOMMAX(num, -MAX_FRAME_DISTANCE); |
| const int mv_row = |
| ROUND_POWER_OF_TWO_SIGNED(ref.row * num * div_mult[den], 14); |
| const int mv_col = |
| ROUND_POWER_OF_TWO_SIGNED(ref.col * num * div_mult[den], 14); |
| const int clamp_max = MV_UPP - 1; |
| const int clamp_min = MV_LOW + 1; |
| output->row = (int16_t)clamp(mv_row, clamp_min, clamp_max); |
| output->col = (int16_t)clamp(mv_col, clamp_min, clamp_max); |
| } |
| |
| void av1_setup_frame_buf_refs(AV1_COMMON *cm); |
| void av1_setup_frame_sign_bias(AV1_COMMON *cm); |
| void av1_setup_skip_mode_allowed(AV1_COMMON *cm); |
| void av1_setup_motion_field(AV1_COMMON *cm); |
| #if CONFIG_SMVP_IMPROVEMENT |
| void av1_setup_ref_frame_sides(AV1_COMMON *cm); |
| #endif // CONFIG_SMVP_IMPROVEMENT |
| |
| static INLINE void av1_collect_neighbors_ref_counts(MACROBLOCKD *const xd) { |
| av1_zero(xd->neighbors_ref_counts); |
| |
| uint8_t *const ref_counts = xd->neighbors_ref_counts; |
| for (int i = 0; i < MAX_NUM_NEIGHBORS; ++i) { |
| const MB_MODE_INFO *const neighbor = xd->neighbors[i]; |
| if (neighbor != NULL && |
| #if CONFIG_TIP |
| !is_tip_ref_frame(neighbor->ref_frame[0]) && |
| #endif // CONFIG_TIP |
| is_inter_block(neighbor, xd->tree_type)) { |
| ref_counts[neighbor->ref_frame[0]]++; |
| if (has_second_ref(neighbor)) { |
| ref_counts[neighbor->ref_frame[1]]++; |
| } |
| } |
| } |
| } |
| |
| void av1_copy_frame_mvs(const AV1_COMMON *const cm, |
| const MB_MODE_INFO *const mi, int mi_row, int mi_col, |
| int x_inside_boundary, int y_inside_boundary); |
| |
| #if CONFIG_C076_INTER_MOD_CTX |
| // Scans neighboring blocks for inter mode contexts |
| void av1_find_mode_ctx(const AV1_COMMON *cm, const MACROBLOCKD *xd, |
| int16_t *mode_context, MV_REFERENCE_FRAME ref_frame); |
| #endif // CONFIG_C076_INTER_MOD_CTX |
| |
| // The global_mvs output parameter points to an array of REF_FRAMES elements. |
| // The caller may pass a null global_mvs if it does not need the global_mvs |
| // output. |
| void av1_find_mv_refs( |
| const AV1_COMMON *cm, const MACROBLOCKD *xd, MB_MODE_INFO *mi, |
| MV_REFERENCE_FRAME ref_frame, uint8_t ref_mv_count[MODE_CTX_REF_FRAMES], |
| CANDIDATE_MV ref_mv_stack[][MAX_REF_MV_STACK_SIZE], |
| uint16_t ref_mv_weight[][MAX_REF_MV_STACK_SIZE], |
| int_mv mv_ref_list[][MAX_MV_REF_CANDIDATES], int_mv *global_mvs |
| #if !CONFIG_C076_INTER_MOD_CTX |
| , |
| int16_t *mode_context |
| #endif //! CONFIG_C076_INTER_MOD_CTX |
| #if CONFIG_WARP_REF_LIST |
| , |
| WARP_CANDIDATE warp_param_stack[][MAX_WARP_REF_CANDIDATES], |
| int max_num_of_warp_candidates, |
| uint8_t valid_num_warp_candidates[INTER_REFS_PER_FRAME] |
| #endif // CONFIG_WARP_REF_LIST |
| ); |
| |
| #if CONFIG_WARP_REF_LIST |
| // Initialize the warp cadidate lists to invalid values |
| void av1_initialize_warp_wrl_list( |
| WARP_CANDIDATE warp_param_stack[][MAX_WARP_REF_CANDIDATES], |
| uint8_t valid_num_warp_candidates[INTER_REFS_PER_FRAME]); |
| #endif // CONFIG_WARP_REF_LIST |
| |
| // check a list of motion vectors by sad score using a number rows of pixels |
| // above and a number cols of pixels in the left to select the one with best |
| // score to use as ref motion vector |
| #if CONFIG_FLEX_MVRES |
| void av1_find_best_ref_mvs(int_mv *mvlist, int_mv *nearest_mv, int_mv *near_mv, |
| MvSubpelPrecision precision); |
| #else |
| void av1_find_best_ref_mvs(int allow_hp, int_mv *mvlist, int_mv *nearest_mv, |
| int_mv *near_mv, int is_integer); |
| #endif |
| |
| uint8_t av1_selectSamples(MV *mv, int *pts, int *pts_inref, int len, |
| BLOCK_SIZE bsize); |
| uint8_t av1_findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int *pts, |
| int *pts_inref); |
| |
| #define INTRABC_DELAY_PIXELS 256 // Delay of 256 pixels |
| #define INTRABC_DELAY_SB64 (INTRABC_DELAY_PIXELS / 64) |
| |
| static INLINE void av1_find_ref_dv(int_mv *ref_dv, const TileInfo *const tile, |
| int mib_size, int mi_row) { |
| if (mi_row - mib_size < tile->mi_row_start) { |
| ref_dv->as_fullmv.row = 0; |
| ref_dv->as_fullmv.col = -MI_SIZE * mib_size - INTRABC_DELAY_PIXELS; |
| } else { |
| ref_dv->as_fullmv.row = -MI_SIZE * mib_size; |
| ref_dv->as_fullmv.col = 0; |
| } |
| convert_fullmv_to_mv(ref_dv); |
| } |
| |
| #if CONFIG_IBC_SR_EXT == 1 |
| static INLINE int av1_is_dv_in_local_range_64x64(const MV dv, |
| const MACROBLOCKD *xd, |
| int mi_row, int mi_col, int bh, |
| int bw, int mib_size_log2) { |
| if (((dv.col >> 3) + bw) > 0 && ((dv.row >> 3) + bh) > 0) return 0; |
| |
| const int SCALE_PX_TO_MV = 8; |
| const int src_top_edge = mi_row * MI_SIZE * SCALE_PX_TO_MV + dv.row; |
| const int src_left_edge = mi_col * MI_SIZE * SCALE_PX_TO_MV + dv.col; |
| const int src_bottom_edge = (mi_row * MI_SIZE + bh) * SCALE_PX_TO_MV + dv.row; |
| const int src_right_edge = (mi_col * MI_SIZE + bw) * SCALE_PX_TO_MV + dv.col; |
| |
| const int src_top_y = src_top_edge >> 3; |
| const int src_left_x = src_left_edge >> 3; |
| const int src_bottom_y = (src_bottom_edge >> 3) - 1; |
| const int src_right_x = (src_right_edge >> 3) - 1; |
| |
| const int active_left_x = mi_col * MI_SIZE; |
| const int active_top_y = mi_row * MI_SIZE; |
| |
| const int sb_size_log2 = mib_size_log2 + MI_SIZE_LOG2; |
| |
| const int sb_size = 1 << sb_size_log2; |
| const int sb_mi_size = sb_size >> MI_SIZE_LOG2; |
| |
| int valid_size_log2 = sb_size_log2 > 6 ? 6 : sb_size_log2; |
| int valid = |
| src_top_y >> valid_size_log2 == active_top_y >> valid_size_log2 && |
| src_left_x >> valid_size_log2 == active_left_x >> valid_size_log2 && |
| src_bottom_y >> valid_size_log2 == active_top_y >> valid_size_log2 && |
| src_right_x >> valid_size_log2 == active_left_x >> valid_size_log2; |
| |
| if (valid) { |
| const int LT_mi_col_offset = |
| (src_left_x >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int LT_mi_row_offset = (src_top_y >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int LT_pos = |
| LT_mi_row_offset * xd->is_mi_coded_stride + LT_mi_col_offset; |
| const int is_chroma_tree = xd->tree_type == CHROMA_PART; |
| const unsigned char *is_mi_coded_map = xd->is_mi_coded[is_chroma_tree]; |
| if (is_mi_coded_map[LT_pos] == 0) return 0; |
| |
| const int BR_mi_col_offset = |
| (src_right_x >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int BR_mi_row_offset = |
| (src_bottom_y >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int BR_pos = |
| BR_mi_row_offset * xd->is_mi_coded_stride + BR_mi_col_offset; |
| if (is_mi_coded_map[BR_pos] == 0) return 0; |
| assert(src_right_x < active_left_x || src_bottom_y < active_top_y); |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| #endif // CONFIG_IBC_SR_EXT == 1 |
| |
| #if CONFIG_IBC_SR_EXT == 2 |
| static INLINE int av1_is_dv_in_local_range(const MV dv, const MACROBLOCKD *xd, |
| int mi_row, int mi_col, int bh, |
| int bw, int mib_size_log2) { |
| const int SCALE_PX_TO_MV = 8; |
| const int src_top_edge = mi_row * MI_SIZE * SCALE_PX_TO_MV + dv.row; |
| const int src_left_edge = mi_col * MI_SIZE * SCALE_PX_TO_MV + dv.col; |
| const int src_bottom_edge = (mi_row * MI_SIZE + bh) * SCALE_PX_TO_MV + dv.row; |
| const int src_right_edge = (mi_col * MI_SIZE + bw) * SCALE_PX_TO_MV + dv.col; |
| const int src_top_y = src_top_edge >> 3; |
| const int src_left_x = src_left_edge >> 3; |
| const int src_bottom_y = (src_bottom_edge >> 3) - 1; |
| const int src_right_x = (src_right_edge >> 3) - 1; |
| const int active_left_x = mi_col * MI_SIZE; |
| const int active_top_y = mi_row * MI_SIZE; |
| |
| const int sb_size_log2 = mib_size_log2 + MI_SIZE_LOG2; |
| if ((src_top_y >> sb_size_log2) < (active_top_y >> sb_size_log2)) return 0; |
| |
| if ((src_bottom_y >> sb_size_log2) > (active_top_y >> sb_size_log2)) return 0; |
| |
| if (((dv.col >> 3) + bw) > 0 && ((dv.row >> 3) + bh) > 0) return 0; |
| |
| const int numLeftSB = |
| (1 << ((7 - sb_size_log2) << 1)) - ((sb_size_log2 < 7) ? 1 : 0); |
| const int valid_SB = |
| ((src_right_x >> sb_size_log2) <= (active_left_x >> sb_size_log2)) && |
| ((src_left_x >> sb_size_log2) >= |
| ((active_left_x >> sb_size_log2) - numLeftSB)); |
| if (!valid_SB) return 0; |
| |
| int TL_same_sb = 0; |
| int BR_same_sb = 0; |
| const int sb_size = 1 << sb_size_log2; |
| const int sb_mi_size = sb_size >> MI_SIZE_LOG2; |
| const int is_chroma_tree = xd->tree_type == CHROMA_PART; |
| const unsigned char *is_mi_coded_map = xd->is_mi_coded[is_chroma_tree]; |
| if ((sb_size_log2 == 7)) { |
| if ((src_left_x >> sb_size_log2) == ((active_left_x >> sb_size_log2) - 1)) { |
| const int src_colo_left_x = src_left_x + sb_size; |
| const int src_colo_top_y = src_top_y; |
| const int offset64x = (src_colo_left_x >> 6) << 6; |
| const int offset64y = (src_colo_top_y >> 6) << 6; |
| const int mi_col_offset = (offset64x >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int mi_row_offset = (offset64y >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int pos = mi_row_offset * xd->is_mi_coded_stride + mi_col_offset; |
| if (is_mi_coded_map[pos]) return 0; |
| if (offset64x == active_left_x && offset64y == active_top_y) return 0; |
| TL_same_sb = 0; |
| } else { |
| TL_same_sb = 1; |
| } |
| } else { |
| if ((src_left_x >> sb_size_log2) < (active_left_x >> sb_size_log2)) { |
| TL_same_sb = 0; |
| } else { |
| TL_same_sb = 1; |
| } |
| } |
| |
| if (TL_same_sb) { |
| const int LT_mi_col_offset = |
| (src_left_x >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int LT_mi_row_offset = (src_top_y >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int LT_pos = |
| LT_mi_row_offset * xd->is_mi_coded_stride + LT_mi_col_offset; |
| if (is_mi_coded_map[LT_pos] == 0) return 0; |
| } |
| |
| BR_same_sb = (src_right_x >> sb_size_log2) == (active_left_x >> sb_size_log2); |
| if (BR_same_sb) { |
| const int BR_mi_col_offset = |
| (src_right_x >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int BR_mi_row_offset = |
| (src_bottom_y >> MI_SIZE_LOG2) & (sb_mi_size - 1); |
| const int BR_pos = |
| BR_mi_row_offset * xd->is_mi_coded_stride + BR_mi_col_offset; |
| if (is_mi_coded_map[BR_pos] == 0) return 0; |
| assert(src_right_x < active_left_x || src_bottom_y < active_top_y); |
| } |
| return 1; |
| } |
| #endif // CONFIG_IBC_SR_EXT == 2 |
| |
| static INLINE int av1_is_dv_valid(const MV dv, const AV1_COMMON *cm, |
| const MACROBLOCKD *xd, int mi_row, int mi_col, |
| BLOCK_SIZE bsize, int mib_size_log2) { |
| const int bw = block_size_wide[bsize]; |
| const int bh = block_size_high[bsize]; |
| const int SCALE_PX_TO_MV = 8; |
| // Disallow subpixel for now |
| // SUBPEL_MASK is not the correct scale |
| if (((dv.row & (SCALE_PX_TO_MV - 1)) || (dv.col & (SCALE_PX_TO_MV - 1)))) |
| return 0; |
| |
| const TileInfo *const tile = &xd->tile; |
| // Is the source top-left inside the current tile? |
| const int src_top_edge = mi_row * MI_SIZE * SCALE_PX_TO_MV + dv.row; |
| const int tile_top_edge = tile->mi_row_start * MI_SIZE * SCALE_PX_TO_MV; |
| if (src_top_edge < tile_top_edge) return 0; |
| const int src_left_edge = mi_col * MI_SIZE * SCALE_PX_TO_MV + dv.col; |
| const int tile_left_edge = tile->mi_col_start * MI_SIZE * SCALE_PX_TO_MV; |
| if (src_left_edge < tile_left_edge) return 0; |
| // Is the bottom right inside the current tile? |
| const int src_bottom_edge = (mi_row * MI_SIZE + bh) * SCALE_PX_TO_MV + dv.row; |
| const int tile_bottom_edge = tile->mi_row_end * MI_SIZE * SCALE_PX_TO_MV; |
| if (src_bottom_edge > tile_bottom_edge) return 0; |
| const int src_right_edge = (mi_col * MI_SIZE + bw) * SCALE_PX_TO_MV + dv.col; |
| const int tile_right_edge = tile->mi_col_end * MI_SIZE * SCALE_PX_TO_MV; |
| if (src_right_edge > tile_right_edge) return 0; |
| |
| // Special case for sub 8x8 chroma cases, to prevent referring to chroma |
| // pixels outside current tile. |
| if (xd->is_chroma_ref && av1_num_planes(cm) > 1) { |
| const struct macroblockd_plane *const pd = &xd->plane[1]; |
| if (bw < 8 && pd->subsampling_x) |
| if (src_left_edge < tile_left_edge + 4 * SCALE_PX_TO_MV) return 0; |
| if (bh < 8 && pd->subsampling_y) |
| if (src_top_edge < tile_top_edge + 4 * SCALE_PX_TO_MV) return 0; |
| } |
| |
| #if CONFIG_IBC_SR_EXT |
| if (cm->features.allow_local_intrabc) { |
| if (bw <= 64 || bh <= 64) { |
| int valid = 0; |
| int tmp_row = mi_row; |
| int tmp_col = mi_col; |
| int tmp_bh = bh; |
| int tmp_bw = bw; |
| if (!cm->seq_params.enable_sdp || !frame_is_intra_only(cm)) { |
| if (xd->is_chroma_ref && av1_num_planes(cm) > 1) { |
| #if CONFIG_EXT_RECUR_PARTITIONS |
| if (xd->mi && xd->mi[0]) { |
| const CHROMA_REF_INFO *chroma_ref_info = |
| &xd->mi[0]->chroma_ref_info; |
| const BLOCK_SIZE bsize_base = chroma_ref_info->bsize_base; |
| tmp_row = chroma_ref_info->mi_row_chroma_base; |
| tmp_col = chroma_ref_info->mi_col_chroma_base; |
| tmp_bh = block_size_high[bsize_base]; |
| tmp_bw = block_size_wide[bsize_base]; |
| } |
| #else // CONFIG_EXT_RECUR_PARTITIONS |
| const struct macroblockd_plane *const pd = &xd->plane[1]; |
| if ((bw < 8 && pd->subsampling_x) && (bh < 8 && pd->subsampling_y)) { |
| tmp_row = mi_row / 2 * 2; |
| tmp_col = mi_col / 2 * 2; |
| tmp_bh = 8; |
| tmp_bw = 8; |
| } else if (bw < 8 && pd->subsampling_x) { |
| tmp_col = mi_col / 2 * 2; |
| tmp_bw = 8; |
| } else if (bh < 8 && pd->subsampling_y) { |
| tmp_row = mi_row / 2 * 2; |
| tmp_bh = 8; |
| } |
| #endif // CONFIG_EXT_RECUR_PARTITIONS |
| } |
| } |
| // The size of local search range is determined by the value of |
| // CONFIG_IBC_SR_EXT. 0: disabled, 1: 64x64 (default), 2: 128x128. |
| #if CONFIG_IBC_SR_EXT == 1 |
| valid = av1_is_dv_in_local_range_64x64(dv, xd, tmp_row, tmp_col, tmp_bh, |
| tmp_bw, mib_size_log2); |
| #endif // CONFIG_IBC_SR_EXT == 1 |
| #if CONFIG_IBC_SR_EXT == 2 |
| valid = av1_is_dv_in_local_range(dv, xd, tmp_row, tmp_col, tmp_bh, tmp_bw, |
| mib_size_log2); |
| #endif // CONFIG_IBC_SR_EXT == 2 |
| if (valid) return 1; |
| } |
| } |
| if (!frame_is_intra_only(cm)) return 0; |
| |
| if (!cm->features.allow_global_intrabc) return 0; |
| #endif // CONFIG_IBC_SR_EXT |
| |
| // Is the bottom right within an already coded SB? Also consider additional |
| // constraints to facilitate HW decoder. |
| const int max_mib_size = 1 << mib_size_log2; |
| const int active_sb_row = mi_row >> mib_size_log2; |
| const int active_sb64_col = (mi_col * MI_SIZE) >> 6; |
| const int sb_size = max_mib_size * MI_SIZE; |
| const int src_sb_row = ((src_bottom_edge >> 3) - 1) / sb_size; |
| const int src_sb64_col = ((src_right_edge >> 3) - 1) >> 6; |
| const int total_sb64_per_row = |
| ((tile->mi_col_end - tile->mi_col_start - 1) >> 4) + 1; |
| const int active_sb64 = active_sb_row * total_sb64_per_row + active_sb64_col; |
| const int src_sb64 = src_sb_row * total_sb64_per_row + src_sb64_col; |
| if (src_sb64 >= active_sb64 - INTRABC_DELAY_SB64) return 0; |
| |
| // Wavefront constraint: use only top left area of frame for reference. |
| const int gradient = 1 + INTRABC_DELAY_SB64 + (sb_size > 64); |
| const int wf_offset = gradient * (active_sb_row - src_sb_row); |
| if (src_sb_row > active_sb_row || |
| src_sb64_col >= active_sb64_col - INTRABC_DELAY_SB64 + wf_offset) |
| return 0; |
| |
| return 1; |
| } |
| |
| #if CONFIG_REF_MV_BANK |
| #define MAX_RMB_SB_HITS 64 |
| void av1_update_ref_mv_bank(const AV1_COMMON *const cm, MACROBLOCKD *const xd, |
| const MB_MODE_INFO *const mbmi); |
| #endif // CONFIG_REF_MV_BANK |
| |
| #if CONFIG_C071_SUBBLK_WARPMV |
| // assign subblock mv from warp into submi |
| void assign_warpmv(const AV1_COMMON *cm, SUBMB_INFO **submi, BLOCK_SIZE bsize, |
| WarpedMotionParams *wm_params, int mi_row, int mi_col); |
| |
| // span the first subblock info into all the rest subblocks in the same block |
| void span_submv(const AV1_COMMON *cm, SUBMB_INFO **submi, int mi_row, |
| int mi_col, BLOCK_SIZE bsize); |
| #endif |
| |
| #if CONFIG_EXTENDED_WARP_PREDICTION |
| #if CONFIG_WARP_REF_LIST |
| void av1_update_warp_param_bank(const AV1_COMMON *const cm, |
| MACROBLOCKD *const xd, |
| const MB_MODE_INFO *const mbmi); |
| #endif // CONFIG_WARP_REF_LIST |
| // Decide what the base warp model should be when using WARP_DELTA. |
| // The warp model to use is signalled as a delta from this. |
| // The base model is stored into `params`, and can be modified further |
| // from there |
| // |
| // The MV which should be used at the center of this block is stored in |
| // `center_mv`. Once the non-translational parameters have been set, |
| // the translational part of the model can be set correctly using: |
| // av1_set_warp_translation(mi_row, mi_col, bsize, mv, params); |
| // |
| // If `center_mv` is not needed, the pointer can be set to NULL. |
| // |
| // The logic behind doing this is as follows: |
| // * If the current block is GLOBALMV, then we want to use the motion vector |
| // inferred from the global model. Conveniently, in this case that is already |
| // stored in mbmi->mv[0] |
| // |
| // * If the current block is NEWMV, then we want to use the signaled |
| // motion vector at the center of the block, regardless of the source |
| // of the base warp model. |
| // |
| // * If the mode is NEARMV, then we need to consider the source of the |
| // base params and the motion vector carefully: |
| // |
| // * If we're extending from a neighboring block, then the predicted |
| // motion vector (in mbmi->mv[0]) does *not* match the prediction |
| // from the base warp model. This because the predicted MV is |
| // set to the MV at the center of the *neighboring* block, to avoid |
| // having motion vector prediction depend on the construction of the |
| // neighbor's warp model. |
| // So in this case, we want to re-calculate the motion vector at |
| // the center of this block from the neighbor's warp model. This is |
| // okay, and does not introduce a similar parsing dependency, because |
| // this only affects the resulting warp parameters, not any of the syntax. |
| // |
| // * However, if we're not extending from a neighboring block, then we |
| // use the global warp as a base. In this case, taking the predicted |
| // MV from whatever ref block we used, is probably better than using the |
| // predicted MV from the global model, because if we wanted the latter |
| // then we would have used the GLOBALMV mode. |
| static INLINE void av1_get_warp_base_params( |
| const AV1_COMMON *cm, |
| #if !CONFIG_WARP_REF_LIST |
| const MACROBLOCKD *xd, |
| #endif //! CONFIG_WARP_REF_LIST |
| const MB_MODE_INFO *mbmi, |
| #if !CONFIG_WARP_REF_LIST |
| const CANDIDATE_MV *ref_mv_stack, |
| #endif //! CONFIG_WARP_REF_LIST |
| WarpedMotionParams *params, int_mv *center_mv |
| #if CONFIG_WARP_REF_LIST |
| , |
| const WARP_CANDIDATE *warp_param_stack |
| #endif // CONFIG_WARP_REF_LIST |
| ) { |
| (void)cm; |
| |
| #if !CONFIG_WARP_REF_LIST |
| if (mbmi->mode != GLOBALMV) { |
| // Look at the reference block selected via the DRL. |
| // If it is warped, use that warp model as a base; otherwise, use global |
| // motion |
| const CANDIDATE_MV *ref = &ref_mv_stack[mbmi->ref_mv_idx]; |
| |
| #if WARP_DELTA_REQUIRES_NEIGHBOR |
| bool ref_is_above = |
| xd->up_available && (ref->row_offset == -1 && ref->col_offset >= 0); |
| bool ref_is_left = |
| xd->left_available && (ref->col_offset == -1 && ref->row_offset >= 0); |
| bool ref_is_adjacent = ref_is_above || ref_is_left; |
| bool can_use_ref = ref_is_adjacent; |
| #else |
| bool ref_is_spatial = (ref->row_offset != OFFSET_NONSPATIAL) && |
| (ref->col_offset != OFFSET_NONSPATIAL); |
| bool can_use_ref = ref_is_spatial; |
| #endif |
| |
| if (can_use_ref) { |
| const MB_MODE_INFO *ref_mi = |
| xd->mi[ref->row_offset * xd->mi_stride + ref->col_offset]; |
| |
| bool ref_is_warped = is_warp_mode(ref_mi->motion_mode); |
| |
| if (ref_is_warped) { |
| *params = ref_mi->wm_params[0]; |
| if (center_mv != NULL) { |
| if (mbmi->mode == NEARMV) { |
| BLOCK_SIZE bsize = mbmi->sb_type[PLANE_TYPE_Y]; |
| int mi_row = xd->mi_row; |
| int mi_col = xd->mi_col; |
| #if CONFIG_FLEX_MVRES |
| *center_mv = get_warp_motion_vector(xd, &ref_mi->wm_params[0], |
| mbmi->pb_mv_precision, bsize, |
| mi_col, mi_row); |
| #else |
| const int allow_high_precision_mv = |
| cm->features.allow_high_precision_mv; |
| const int force_integer_mv = |
| cm->features.cur_frame_force_integer_mv; |
| *center_mv = get_warp_motion_vector( |
| xd, &ref_mi->wm_params[0], allow_high_precision_mv, bsize, |
| mi_col, mi_row, force_integer_mv); |
| #endif |
| |
| } else { |
| *center_mv = mbmi->mv[0]; |
| } |
| } |
| return; |
| } |
| } |
| } |
| *params = *effective_global_motion(xd, mbmi->ref_frame[0]); |
| #else |
| assert(mbmi->warp_ref_idx < mbmi->max_num_warp_candidates); |
| *params = warp_param_stack[mbmi->warp_ref_idx].wm_params; |
| #endif //! CONFIG_WARP_REF_LIST |
| |
| if (center_mv != NULL) { |
| *center_mv = mbmi->mv[0]; |
| } |
| } |
| |
| // Try to get the neighbor's warp model |
| // If this is possible, return true and set *wm_params to the neighbor's warp |
| // model. |
| // If this is not possible, return false and leave *wm_params unmodified. |
| // |
| // Encoders should only select warp_extend mode if this function returns true |
| // (indicating a useful model was available). |
| // But decoders must be prepared for the possibility than an encoder selects |
| // warp_extend even if this function returns false. In that case, the decoder |
| // should fall back to translational motion, generally by setting |
| // mbmi->wm_params[0].invalid = 1; |
| static INLINE void av1_get_neighbor_warp_model(const AV1_COMMON *cm, |
| const MACROBLOCKD *xd, |
| const MB_MODE_INFO *neighbor_mi, |
| WarpedMotionParams *wm_params) { |
| (void)cm; |
| if (is_warp_mode(neighbor_mi->motion_mode)) { |
| *wm_params = neighbor_mi->wm_params[0]; |
| } else if (neighbor_mi->global_mv_block[0]) { |
| *wm_params = neighbor_mi->wm_params[0]; |
| } else { |
| // Neighbor block is translation-only, so doesn't have |
| // a warp model. So we need to synthesize one. |
| // Note that, in this case, the neighbor might be compound, but the |
| // current block will always be single ref. So we have to figure out |
| // which of the neighbor's ref frames matches ours, and take that MV. |
| *wm_params = default_warp_params; |
| wm_params->wmtype = TRANSLATION; |
| |
| int ref_frame = xd->mi[0]->ref_frame[0]; |
| if (neighbor_mi->ref_frame[0] == ref_frame) { |
| wm_params->wmmat[0] = |
| neighbor_mi->mv[0].as_mv.col * (1 << (WARPEDMODEL_PREC_BITS - 3)); |
| wm_params->wmmat[1] = |
| neighbor_mi->mv[0].as_mv.row * (1 << (WARPEDMODEL_PREC_BITS - 3)); |
| } else { |
| assert(neighbor_mi->ref_frame[1] == ref_frame); |
| wm_params->wmmat[0] = |
| neighbor_mi->mv[1].as_mv.col * (1 << (WARPEDMODEL_PREC_BITS - 3)); |
| wm_params->wmmat[1] = |
| neighbor_mi->mv[1].as_mv.row * (1 << (WARPEDMODEL_PREC_BITS - 3)); |
| } |
| } |
| } |
| |
| // The use_warp_extend symbol has two components to its context: |
| // First context is the extension type (copy, extend from warp model, etc.) |
| // Second context is log2(number of MI units along common edge) |
| static INLINE int av1_get_warp_extend_ctx1(const MACROBLOCKD *xd, |
| const MB_MODE_INFO *mbmi) { |
| if (mbmi->mode == NEARMV) { |
| return 0; |
| } else { |
| assert(mbmi->mode == NEWMV); |
| const TileInfo *const tile = &xd->tile; |
| const POSITION mi_pos = { xd->height - 1, -1 }; |
| if (!(is_inside(tile, xd->mi_col, xd->mi_row, &mi_pos) && |
| xd->left_available)) |
| return 1; |
| const MB_MODE_INFO *left_mi = |
| xd->mi[mi_pos.row * xd->mi_stride + mi_pos.col]; |
| if (!is_inter_ref_frame(left_mi->ref_frame[0])) return 1; |
| if (left_mi->ref_frame[0] != mbmi->ref_frame[0]) return 1; |
| if (is_warp_mode(left_mi->motion_mode)) { |
| return 2; |
| } else if (left_mi->global_mv_block[0]) { |
| return 3; |
| } else { |
| // Neighbor block is translation-only |
| return 4; |
| } |
| } |
| } |
| |
| static INLINE int av1_get_warp_extend_ctx2(const MACROBLOCKD *xd, |
| const MB_MODE_INFO *mbmi) { |
| if (mbmi->mode == NEARMV) { |
| return 0; |
| } else { |
| assert(mbmi->mode == NEWMV); |
| const TileInfo *const tile = &xd->tile; |
| const POSITION mi_pos = { -1, xd->width - 1 }; |
| if (!(is_inside(tile, xd->mi_col, xd->mi_row, &mi_pos) && xd->up_available)) |
| return 1; |
| const MB_MODE_INFO *above_mi = |
| xd->mi[mi_pos.row * xd->mi_stride + mi_pos.col]; |
| if (!is_inter_ref_frame(above_mi->ref_frame[0])) return 1; |
| if (above_mi->ref_frame[0] != mbmi->ref_frame[0]) return 1; |
| if (is_warp_mode(above_mi->motion_mode)) { |
| return 2; |
| } else if (above_mi->global_mv_block[0]) { |
| return 3; |
| } else { |
| // Neighbor block is translation-only |
| return 4; |
| } |
| } |
| } |
| |
| // Get the position of back-up WARP_EXTED mode base. |
| int get_extend_base_pos(const AV1_COMMON *cm, const MACROBLOCKD *xd, |
| const MB_MODE_INFO *mbmi, int mvp_row_offset, |
| int mvp_col_offset, POSITION *base_pos); |
| #endif // CONFIG_EXTENDED_WARP_PREDICTION |
| |
| #if CONFIG_WARP_REF_LIST |
| void av1_find_warp_delta_base_candidates( |
| const MACROBLOCKD *xd, const MB_MODE_INFO *mbmi, |
| WARP_CANDIDATE warp_param_stack[MAX_WARP_REF_CANDIDATES], |
| WARP_CANDIDATE spatial_candidates[MAX_WARP_REF_CANDIDATES], |
| uint8_t num_wrl_cand, uint8_t *p_valid_num_candidates); |
| #endif // CONFIG_WARP_REF_LIST |
| #if CONFIG_TEMPORAL_GLOBAL_MV |
| int av1_find_single_ref_projected_samples( |
| const AV1_COMMON *cm, const MACROBLOCKD *xd, MV_REFERENCE_FRAME ref_frame, |
| const int mi_row, const int mi_col, const int width, const int height, |
| int_mv *projected_mvs, int *pts, int *pts_inref); |
| int av1_find_single_ref_projected_samples_sb(const AV1_COMMON *cm, |
| const MACROBLOCKD *xd, |
| MV_REFERENCE_FRAME ref_frame, |
| const int mi_row, const int mi_col, |
| int_mv *projected_mvs, int *pts, |
| int *pts_inref); |
| void av1_set_temporal_global_mvs_sb(const AV1_COMMON *cm, MACROBLOCKD *xd, |
| const int mi_row, const int mi_col); |
| #endif // CONFIG_TEMPORAL_GLOBAL_MV |
| |
| #if CONFIG_WARPMV |
| bool is_warp_candidate_inside_of_frame(const AV1_COMMON *cm, |
| const MACROBLOCKD *xd, int_mv cand_mv); |
| int16_t inter_warpmv_mode_ctx(const AV1_COMMON *cm, const MACROBLOCKD *xd, |
| const MB_MODE_INFO *mbmi); |
| |
| #endif // CONFIG_WARPMV |
| |
| static INLINE int is_ref_motion_field_eligible( |
| const AV1_COMMON *const cm, const RefCntBuffer *const start_frame_buf) { |
| if (start_frame_buf == NULL) return 0; |
| |
| if (start_frame_buf->frame_type == KEY_FRAME || |
| start_frame_buf->frame_type == INTRA_ONLY_FRAME) |
| return 0; |
| if (start_frame_buf->mi_rows != cm->mi_params.mi_rows || |
| start_frame_buf->mi_cols != cm->mi_params.mi_cols) |
| return 0; |
| return 1; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_MVREF_COMMON_H_ |