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Diffstat (limited to 'third_party/aom/av1/common/pred_common.h')
| -rw-r--r-- | third_party/aom/av1/common/pred_common.h | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/pred_common.h b/third_party/aom/av1/common/pred_common.h new file mode 100644 index 000000000..6dba2322d --- /dev/null +++ b/third_party/aom/av1/common/pred_common.h @@ -0,0 +1,360 @@ +/* + * 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/blockd.h" +#include "av1/common/mvref_common.h" +#include "av1/common/onyxc_int.h" +#include "aom_dsp/aom_dsp_common.h" + +#ifdef __cplusplus +extern "C" { +#endif + +static INLINE int get_segment_id(const AV1_COMMON *const cm, + const uint8_t *segment_ids, BLOCK_SIZE bsize, + int mi_row, int mi_col) { + const int mi_offset = mi_row * cm->mi_cols + mi_col; + const int bw = mi_size_wide[bsize]; + const int bh = mi_size_high[bsize]; + const int xmis = AOMMIN(cm->mi_cols - mi_col, bw); + const int ymis = AOMMIN(cm->mi_rows - mi_row, bh); + int x, y, segment_id = MAX_SEGMENTS; + + for (y = 0; y < ymis; ++y) + for (x = 0; x < xmis; ++x) + segment_id = + AOMMIN(segment_id, segment_ids[mi_offset + y * cm->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 mi_row, int mi_col, + int *cdf_index) { + int prev_ul = -1; // top left segment_id + int prev_l = -1; // left segment_id + int prev_u = -1; // top segment_id + if ((xd->up_available) && (xd->left_available)) { + prev_ul = get_segment_id(cm, cm->current_frame_seg_map, BLOCK_4X4, + mi_row - 1, mi_col - 1); + } + if (xd->up_available) { + prev_u = get_segment_id(cm, cm->current_frame_seg_map, BLOCK_4X4, + mi_row - 1, mi_col - 0); + } + if (xd->left_available) { + prev_l = get_segment_id(cm, cm->current_frame_seg_map, BLOCK_4X4, + mi_row - 0, mi_col - 1); + } + + // Pick CDF index based on number of matching/out-of-bounds segment IDs. + if (prev_ul < 0 || prev_u < 0 || prev_l < 0) /* Edge case */ + *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]; + int bck_idx = cm->frame_refs[mbmi->ref_frame[0] - LAST_FRAME].idx; + int fwd_idx = cm->frame_refs[mbmi->ref_frame[1] - LAST_FRAME].idx; + int bck_frame_index = 0, fwd_frame_index = 0; + int cur_frame_index = cm->cur_frame->cur_frame_offset; + + if (bck_idx >= 0) + bck_frame_index = cm->buffer_pool->frame_bufs[bck_idx].cur_frame_offset; + + if (fwd_idx >= 0) + fwd_frame_index = cm->buffer_pool->frame_bufs[fwd_idx].cur_frame_offset; + int fwd = abs(get_relative_dist(cm, fwd_frame_index, cur_frame_index)); + int bck = abs(get_relative_dist(cm, 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) { + 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) { + 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_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 = above_mi ? above_mi->skip : 0; + const int left_skip = left_mi ? left_mi->skip : 0; + return above_skip + left_skip; +} + +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) { + 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)]; +} + +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->sb_type]; + 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->sb_type] >= max_tx_wide; + + if (has_left) + if (is_inter_block(left_mbmi)) + left = block_size_high[left_mbmi->sb_type] >= 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_ |