| /* |
| * 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_PRED_COMMON_H_ |
| #define AOM_AV1_COMMON_PRED_COMMON_H_ |
| |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/blockd.h" |
| #include "av1/common/mvref_common.h" |
| #include "aom_dsp/aom_dsp_common.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| static INLINE int get_segment_id(const CommonModeInfoParams *const mi_params, |
| const uint8_t *segment_ids, BLOCK_SIZE bsize, |
| int mi_row, int mi_col) { |
| const int mi_offset = mi_row * mi_params->mi_cols + mi_col; |
| const int bw = mi_size_wide[bsize]; |
| const int bh = mi_size_high[bsize]; |
| const int xmis = AOMMIN(mi_params->mi_cols - mi_col, bw); |
| const int ymis = AOMMIN(mi_params->mi_rows - mi_row, bh); |
| int segment_id = MAX_SEGMENTS; |
| |
| for (int y = 0; y < ymis; ++y) { |
| for (int x = 0; x < xmis; ++x) { |
| segment_id = AOMMIN(segment_id, |
| segment_ids[mi_offset + y * mi_params->mi_cols + x]); |
| } |
| } |
| |
| assert(segment_id >= 0 && segment_id < MAX_SEGMENTS); |
| return segment_id; |
| } |
| |
| static INLINE int av1_get_spatial_seg_pred(const AV1_COMMON *const cm, |
| const MACROBLOCKD *const xd, |
| int *cdf_index, int skip_over4x4) { |
| const int step_size = skip_over4x4 ? 2 : 1; |
| int prev_ul = -1; // top left segment_id |
| int prev_l = -1; // left segment_id |
| int prev_u = -1; // top segment_id |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| const CommonModeInfoParams *const mi_params = &cm->mi_params; |
| const uint8_t *seg_map = cm->cur_frame->seg_map; |
| if ((xd->up_available) && (xd->left_available)) { |
| prev_ul = get_segment_id(mi_params, seg_map, BLOCK_4X4, mi_row - step_size, |
| mi_col - step_size); |
| } |
| if (xd->up_available) { |
| prev_u = get_segment_id(mi_params, seg_map, BLOCK_4X4, mi_row - step_size, |
| mi_col - 0); |
| } |
| if (xd->left_available) { |
| prev_l = get_segment_id(mi_params, seg_map, BLOCK_4X4, mi_row - 0, |
| mi_col - step_size); |
| } |
| // This property follows from the fact that get_segment_id() returns a |
| // nonnegative value. This allows us to test for all edge cases with a simple |
| // prev_ul < 0 check. |
| assert(IMPLIES(prev_ul >= 0, prev_u >= 0 && prev_l >= 0)); |
| |
| // Pick CDF index based on number of matching/out-of-bounds segment IDs. |
| if (prev_ul < 0) /* Edge cases */ |
| *cdf_index = 0; |
| else if ((prev_ul == prev_u) && (prev_ul == prev_l)) |
| *cdf_index = 2; |
| else if ((prev_ul == prev_u) || (prev_ul == prev_l) || (prev_u == prev_l)) |
| *cdf_index = 1; |
| else |
| *cdf_index = 0; |
| |
| // If 2 or more are identical returns that as predictor, otherwise prev_l. |
| if (prev_u == -1) // edge case |
| return prev_l == -1 ? 0 : prev_l; |
| if (prev_l == -1) // edge case |
| return prev_u; |
| return (prev_ul == prev_u) ? prev_u : prev_l; |
| } |
| |
| static INLINE int av1_get_pred_context_seg_id(const MACROBLOCKD *xd) { |
| const MB_MODE_INFO *const above_mi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mi = xd->left_mbmi; |
| const int above_sip = (above_mi != NULL) ? above_mi->seg_id_predicted : 0; |
| const int left_sip = (left_mi != NULL) ? left_mi->seg_id_predicted : 0; |
| |
| return above_sip + left_sip; |
| } |
| |
| static INLINE int get_comp_index_context(const AV1_COMMON *cm, |
| const MACROBLOCKD *xd) { |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| const RefCntBuffer *const bck_buf = get_ref_frame_buf(cm, mbmi->ref_frame[0]); |
| const RefCntBuffer *const fwd_buf = get_ref_frame_buf(cm, mbmi->ref_frame[1]); |
| int bck_frame_index = 0, fwd_frame_index = 0; |
| int cur_frame_index = cm->cur_frame->order_hint; |
| |
| if (bck_buf != NULL) bck_frame_index = bck_buf->order_hint; |
| if (fwd_buf != NULL) fwd_frame_index = fwd_buf->order_hint; |
| |
| int fwd = abs(get_relative_dist(&cm->seq_params->order_hint_info, |
| fwd_frame_index, cur_frame_index)); |
| int bck = abs(get_relative_dist(&cm->seq_params->order_hint_info, |
| cur_frame_index, bck_frame_index)); |
| |
| const MB_MODE_INFO *const above_mi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mi = xd->left_mbmi; |
| |
| int above_ctx = 0, left_ctx = 0; |
| const int offset = (fwd == bck); |
| |
| if (above_mi != NULL) { |
| if (has_second_ref(above_mi)) |
| above_ctx = above_mi->compound_idx; |
| else if (above_mi->ref_frame[0] == ALTREF_FRAME) |
| above_ctx = 1; |
| } |
| |
| if (left_mi != NULL) { |
| if (has_second_ref(left_mi)) |
| left_ctx = left_mi->compound_idx; |
| else if (left_mi->ref_frame[0] == ALTREF_FRAME) |
| left_ctx = 1; |
| } |
| |
| return above_ctx + left_ctx + 3 * offset; |
| } |
| |
| static INLINE int get_comp_group_idx_context(const MACROBLOCKD *xd) { |
| const MB_MODE_INFO *const above_mi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mi = xd->left_mbmi; |
| int above_ctx = 0, left_ctx = 0; |
| |
| if (above_mi) { |
| if (has_second_ref(above_mi)) |
| above_ctx = above_mi->comp_group_idx; |
| else if (above_mi->ref_frame[0] == ALTREF_FRAME) |
| above_ctx = 3; |
| } |
| if (left_mi) { |
| if (has_second_ref(left_mi)) |
| left_ctx = left_mi->comp_group_idx; |
| else if (left_mi->ref_frame[0] == ALTREF_FRAME) |
| left_ctx = 3; |
| } |
| |
| return AOMMIN(5, above_ctx + left_ctx); |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_seg_id( |
| struct segmentation_probs *segp, const MACROBLOCKD *xd) { |
| return segp->pred_cdf[av1_get_pred_context_seg_id(xd)]; |
| } |
| |
| static INLINE int av1_get_skip_mode_context(const MACROBLOCKD *xd) { |
| const MB_MODE_INFO *const above_mi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mi = xd->left_mbmi; |
| const int above_skip_mode = above_mi ? above_mi->skip_mode : 0; |
| const int left_skip_mode = left_mi ? left_mi->skip_mode : 0; |
| return above_skip_mode + left_skip_mode; |
| } |
| |
| static INLINE int av1_get_skip_txfm_context(const MACROBLOCKD *xd) { |
| const MB_MODE_INFO *const above_mi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mi = xd->left_mbmi; |
| const int above_skip_txfm = above_mi ? above_mi->skip_txfm : 0; |
| const int left_skip_txfm = left_mi ? left_mi->skip_txfm : 0; |
| return above_skip_txfm + left_skip_txfm; |
| } |
| |
| int av1_get_pred_context_switchable_interp(const MACROBLOCKD *xd, int dir); |
| |
| // Get a list of palette base colors that are used in the above and left blocks, |
| // referred to as "color cache". The return value is the number of colors in the |
| // cache (<= 2 * PALETTE_MAX_SIZE). The color values are stored in "cache" |
| // in ascending order. |
| int av1_get_palette_cache(const MACROBLOCKD *const xd, int plane, |
| uint16_t *cache); |
| |
| static INLINE int av1_get_palette_bsize_ctx(BLOCK_SIZE bsize) { |
| assert(bsize < BLOCK_SIZES_ALL); |
| return num_pels_log2_lookup[bsize] - num_pels_log2_lookup[BLOCK_8X8]; |
| } |
| |
| static INLINE int av1_get_palette_mode_ctx(const MACROBLOCKD *xd) { |
| const MB_MODE_INFO *const above_mi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mi = xd->left_mbmi; |
| int ctx = 0; |
| if (above_mi) ctx += (above_mi->palette_mode_info.palette_size[0] > 0); |
| if (left_mi) ctx += (left_mi->palette_mode_info.palette_size[0] > 0); |
| return ctx; |
| } |
| |
| int av1_get_intra_inter_context(const MACROBLOCKD *xd); |
| |
| int av1_get_reference_mode_context(const MACROBLOCKD *xd); |
| |
| static INLINE aom_cdf_prob *av1_get_reference_mode_cdf(const MACROBLOCKD *xd) { |
| return xd->tile_ctx->comp_inter_cdf[av1_get_reference_mode_context(xd)]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_skip_txfm_cdf(const MACROBLOCKD *xd) { |
| return xd->tile_ctx->skip_txfm_cdfs[av1_get_skip_txfm_context(xd)]; |
| } |
| |
| int av1_get_comp_reference_type_context(const MACROBLOCKD *xd); |
| |
| // == Uni-directional contexts == |
| |
| int av1_get_pred_context_uni_comp_ref_p(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_uni_comp_ref_p1(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_uni_comp_ref_p2(const MACROBLOCKD *xd); |
| |
| static INLINE aom_cdf_prob *av1_get_comp_reference_type_cdf( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_comp_reference_type_context(xd); |
| return xd->tile_ctx->comp_ref_type_cdf[pred_context]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_uni_comp_ref_p( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_uni_comp_ref_p(xd); |
| return xd->tile_ctx->uni_comp_ref_cdf[pred_context][0]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_uni_comp_ref_p1( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_uni_comp_ref_p1(xd); |
| return xd->tile_ctx->uni_comp_ref_cdf[pred_context][1]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_uni_comp_ref_p2( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_uni_comp_ref_p2(xd); |
| return xd->tile_ctx->uni_comp_ref_cdf[pred_context][2]; |
| } |
| |
| // == Bi-directional contexts == |
| |
| int av1_get_pred_context_comp_ref_p(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_comp_ref_p1(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_comp_ref_p2(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_comp_bwdref_p(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_comp_bwdref_p1(const MACROBLOCKD *xd); |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_comp_ref_p(const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_comp_ref_p(xd); |
| return xd->tile_ctx->comp_ref_cdf[pred_context][0]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_comp_ref_p1( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_comp_ref_p1(xd); |
| return xd->tile_ctx->comp_ref_cdf[pred_context][1]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_comp_ref_p2( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_comp_ref_p2(xd); |
| return xd->tile_ctx->comp_ref_cdf[pred_context][2]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_comp_bwdref_p( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_comp_bwdref_p(xd); |
| return xd->tile_ctx->comp_bwdref_cdf[pred_context][0]; |
| } |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_comp_bwdref_p1( |
| const MACROBLOCKD *xd) { |
| const int pred_context = av1_get_pred_context_comp_bwdref_p1(xd); |
| return xd->tile_ctx->comp_bwdref_cdf[pred_context][1]; |
| } |
| |
| // == Single contexts == |
| |
| int av1_get_pred_context_single_ref_p1(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_single_ref_p2(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_single_ref_p3(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_single_ref_p4(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_single_ref_p5(const MACROBLOCKD *xd); |
| |
| int av1_get_pred_context_single_ref_p6(const MACROBLOCKD *xd); |
| |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_single_ref_p1( |
| const MACROBLOCKD *xd) { |
| return xd->tile_ctx |
| ->single_ref_cdf[av1_get_pred_context_single_ref_p1(xd)][0]; |
| } |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_single_ref_p2( |
| const MACROBLOCKD *xd) { |
| return xd->tile_ctx |
| ->single_ref_cdf[av1_get_pred_context_single_ref_p2(xd)][1]; |
| } |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_single_ref_p3( |
| const MACROBLOCKD *xd) { |
| return xd->tile_ctx |
| ->single_ref_cdf[av1_get_pred_context_single_ref_p3(xd)][2]; |
| } |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_single_ref_p4( |
| const MACROBLOCKD *xd) { |
| return xd->tile_ctx |
| ->single_ref_cdf[av1_get_pred_context_single_ref_p4(xd)][3]; |
| } |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_single_ref_p5( |
| const MACROBLOCKD *xd) { |
| return xd->tile_ctx |
| ->single_ref_cdf[av1_get_pred_context_single_ref_p5(xd)][4]; |
| } |
| static INLINE aom_cdf_prob *av1_get_pred_cdf_single_ref_p6( |
| const MACROBLOCKD *xd) { |
| return xd->tile_ctx |
| ->single_ref_cdf[av1_get_pred_context_single_ref_p6(xd)][5]; |
| } |
| |
| // Returns a context number for the given MB prediction signal |
| // The mode info data structure has a one element border above and to the |
| // left of the entries corresponding to real blocks. |
| // The prediction flags in these dummy entries are initialized to 0. |
| static INLINE int get_tx_size_context(const MACROBLOCKD *xd) { |
| const MB_MODE_INFO *mbmi = xd->mi[0]; |
| const MB_MODE_INFO *const above_mbmi = xd->above_mbmi; |
| const MB_MODE_INFO *const left_mbmi = xd->left_mbmi; |
| const TX_SIZE max_tx_size = max_txsize_rect_lookup[mbmi->bsize]; |
| const int max_tx_wide = tx_size_wide[max_tx_size]; |
| const int max_tx_high = tx_size_high[max_tx_size]; |
| const int has_above = xd->up_available; |
| const int has_left = xd->left_available; |
| |
| int above = xd->above_txfm_context[0] >= max_tx_wide; |
| int left = xd->left_txfm_context[0] >= max_tx_high; |
| |
| if (has_above) |
| if (is_inter_block(above_mbmi)) |
| above = block_size_wide[above_mbmi->bsize] >= max_tx_wide; |
| |
| if (has_left) |
| if (is_inter_block(left_mbmi)) |
| left = block_size_high[left_mbmi->bsize] >= max_tx_high; |
| |
| if (has_above && has_left) |
| return (above + left); |
| else if (has_above) |
| return above; |
| else if (has_left) |
| return left; |
| else |
| return 0; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_PRED_COMMON_H_ |