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Diffstat (limited to 'third_party/aom/av1/common/mvref_common.h')
| -rw-r--r-- | third_party/aom/av1/common/mvref_common.h | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/third_party/aom/av1/common/mvref_common.h b/third_party/aom/av1/common/mvref_common.h deleted file mode 100644 index 83f7a1ac0..000000000 --- a/third_party/aom/av1/common/mvref_common.h +++ /dev/null @@ -1,361 +0,0 @@ -/* - * 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_MVREF_COMMON_H_ -#define AOM_AV1_COMMON_MVREF_COMMON_H_ - -#include "av1/common/onyxc_int.h" -#include "av1/common/blockd.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define MVREF_ROW_COLS 3 - -// 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; - -// clamp_mv_ref -#define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units - -static INLINE int get_relative_dist(const AV1_COMMON *cm, int a, int b) { - if (!cm->seq_params.enable_order_hint) return 0; - - const int bits = cm->seq_params.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) { - clamp_mv(mv, xd->mb_to_left_edge - bw * 8 - MV_BORDER, - xd->mb_to_right_edge + bw * 8 + MV_BORDER, - xd->mb_to_top_edge - bh * 8 - MV_BORDER, - xd->mb_to_bottom_edge + bh * 8 + MV_BORDER); -} - -// This function returns either the appropriate sub block or block's mv -// on whether the block_size < 8x8 and we have check_sub_blocks set. -static INLINE int_mv get_sub_block_mv(const MB_MODE_INFO *candidate, - int which_mv, int search_col) { - (void)search_col; - return candidate->mv[which_mv]; -} - -static INLINE int_mv get_sub_block_pred_mv(const MB_MODE_INFO *candidate, - int which_mv, int search_col) { - (void)search_col; - return candidate->mv[which_mv]; -} - -// Performs mv sign inversion if indicated by the reference frame combination. -static INLINE int_mv scale_mv(const MB_MODE_INFO *mbmi, int ref, - const MV_REFERENCE_FRAME this_ref_frame, - const int *ref_sign_bias) { - int_mv mv = mbmi->mv[ref]; - if (ref_sign_bias[mbmi->ref_frame[ref]] != ref_sign_bias[this_ref_frame]) { - mv.as_mv.row *= -1; - mv.as_mv.col *= -1; - } - return mv; -} - -// 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); -} - -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); - } - } -} - -static INLINE int8_t get_uni_comp_ref_idx(const MV_REFERENCE_FRAME *const rf) { - // Single ref pred - if (rf[1] <= INTRA_FRAME) return -1; - - // Bi-directional comp ref pred - if ((rf[0] < BWDREF_FRAME) && (rf[1] >= BWDREF_FRAME)) return -1; - - for (int8_t ref_idx = 0; ref_idx < TOTAL_UNIDIR_COMP_REFS; ++ref_idx) { - if (rf[0] == comp_ref0(ref_idx) && rf[1] == comp_ref1(ref_idx)) - return ref_idx; - } - return -1; -} - -static INLINE int8_t av1_ref_frame_type(const MV_REFERENCE_FRAME *const rf) { - if (rf[1] > INTRA_FRAME) { - const int8_t uni_comp_ref_idx = get_uni_comp_ref_idx(rf); - if (uni_comp_ref_idx >= 0) { - assert((REF_FRAMES + FWD_REFS * BWD_REFS + uni_comp_ref_idx) < - MODE_CTX_REF_FRAMES); - return REF_FRAMES + FWD_REFS * BWD_REFS + uni_comp_ref_idx; - } else { - return REF_FRAMES + FWD_RF_OFFSET(rf[0]) + - BWD_RF_OFFSET(rf[1]) * FWD_REFS; - } - } - - return rf[0]; -} - -// clang-format off -static MV_REFERENCE_FRAME ref_frame_map[TOTAL_COMP_REFS][2] = { - { LAST_FRAME, BWDREF_FRAME }, { LAST2_FRAME, BWDREF_FRAME }, - { LAST3_FRAME, BWDREF_FRAME }, { GOLDEN_FRAME, BWDREF_FRAME }, - - { LAST_FRAME, ALTREF2_FRAME }, { LAST2_FRAME, ALTREF2_FRAME }, - { LAST3_FRAME, ALTREF2_FRAME }, { GOLDEN_FRAME, ALTREF2_FRAME }, - - { LAST_FRAME, ALTREF_FRAME }, { LAST2_FRAME, ALTREF_FRAME }, - { LAST3_FRAME, ALTREF_FRAME }, { GOLDEN_FRAME, ALTREF_FRAME }, - - { LAST_FRAME, LAST2_FRAME }, { LAST_FRAME, LAST3_FRAME }, - { LAST_FRAME, GOLDEN_FRAME }, { BWDREF_FRAME, ALTREF_FRAME }, - - // NOTE: Following reference frame pairs are not supported to be explicitly - // signalled, but they are possibly chosen by the use of skip_mode, - // which may use the most recent one-sided reference frame pair. - { LAST2_FRAME, LAST3_FRAME }, { LAST2_FRAME, GOLDEN_FRAME }, - { LAST3_FRAME, GOLDEN_FRAME }, {BWDREF_FRAME, ALTREF2_FRAME}, - { ALTREF2_FRAME, ALTREF_FRAME } -}; -// clang-format on - -static INLINE void av1_set_ref_frame(MV_REFERENCE_FRAME *rf, - int8_t ref_frame_type) { - if (ref_frame_type >= REF_FRAMES) { - rf[0] = ref_frame_map[ref_frame_type - REF_FRAMES][0]; - rf[1] = ref_frame_map[ref_frame_type - REF_FRAMES][1]; - } else { - rf[0] = ref_frame_type; - rf[1] = NONE_FRAME; - assert(ref_frame_type > NONE_FRAME); - } -} - -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 }, -}; - -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 (rf[1] <= INTRA_FRAME) return mode_context[ref_frame]; - - const int16_t newmv_ctx = mode_context[ref_frame] & NEWMV_CTX_MASK; - 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)]; - return comp_ctx; -} - -static INLINE uint8_t av1_drl_ctx(const CANDIDATE_MV *ref_mv_stack, - int ref_idx) { - if (ref_mv_stack[ref_idx].weight >= REF_CAT_LEVEL && - ref_mv_stack[ref_idx + 1].weight >= REF_CAT_LEVEL) - return 0; - - if (ref_mv_stack[ref_idx].weight >= REF_CAT_LEVEL && - ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL) - return 1; - - if (ref_mv_stack[ref_idx].weight < REF_CAT_LEVEL && - ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL) - return 2; - - return 0; -} - -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); -void av1_set_frame_refs(AV1_COMMON *const cm, int lst_map_idx, int gld_map_idx); - -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; - - const MB_MODE_INFO *const above_mbmi = xd->above_mbmi; - const MB_MODE_INFO *const left_mbmi = xd->left_mbmi; - const int above_in_image = xd->up_available; - const int left_in_image = xd->left_available; - - // Above neighbor - if (above_in_image && is_inter_block(above_mbmi)) { - ref_counts[above_mbmi->ref_frame[0]]++; - if (has_second_ref(above_mbmi)) { - ref_counts[above_mbmi->ref_frame[1]]++; - } - } - - // Left neighbor - if (left_in_image && is_inter_block(left_mbmi)) { - ref_counts[left_mbmi->ref_frame[0]]++; - if (has_second_ref(left_mbmi)) { - ref_counts[left_mbmi->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_mis, int y_mis); - -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], - int_mv mv_ref_list[][MAX_MV_REF_CANDIDATES], - int_mv *global_mvs, int mi_row, int mi_col, - int16_t *mode_context); - -// 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 -void av1_find_best_ref_mvs(int allow_hp, int_mv *mvlist, int_mv *nearest_mv, - int_mv *near_mv, int is_integer); - -int selectSamples(MV *mv, int *pts, int *pts_inref, int len, BLOCK_SIZE bsize); -int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col, - 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, int mi_col) { - (void)mi_col; - if (mi_row - mib_size < tile->mi_row_start) { - ref_dv->as_mv.row = 0; - ref_dv->as_mv.col = -MI_SIZE * mib_size - INTRABC_DELAY_PIXELS; - } else { - ref_dv->as_mv.row = -MI_SIZE * mib_size; - ref_dv->as_mv.col = 0; - } - ref_dv->as_mv.row *= 8; - ref_dv->as_mv.col *= 8; -} - -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. - for (int plane = 1; plane < av1_num_planes(cm); ++plane) { - const struct macroblockd_plane *const pd = &xd->plane[plane]; - if (is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x, - pd->subsampling_y)) { - 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; - } - } - - // 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; -} - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // AOM_AV1_COMMON_MVREF_COMMON_H_ |