1233d2500723e5594f3e7c70896ffeeef32b9c950ywan 2233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 3233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Copyright (c) 2012 The WebM project authors. All Rights Reserved. 4233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 5233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Use of this source code is governed by a BSD-style license 6233d2500723e5594f3e7c70896ffeeef32b9c950ywan * that can be found in the LICENSE file in the root of the source 7233d2500723e5594f3e7c70896ffeeef32b9c950ywan * tree. An additional intellectual property rights grant can be found 8233d2500723e5594f3e7c70896ffeeef32b9c950ywan * in the file PATENTS. All contributing project authors may 9233d2500723e5594f3e7c70896ffeeef32b9c950ywan * be found in the AUTHORS file in the root of the source tree. 10233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 11233d2500723e5594f3e7c70896ffeeef32b9c950ywan 12233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include <limits.h> 13233d2500723e5594f3e7c70896ffeeef32b9c950ywan 14233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/common/vp9_common.h" 15233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/common/vp9_pred_common.h" 16233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/common/vp9_seg_common.h" 17233d2500723e5594f3e7c70896ffeeef32b9c950ywan 18233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic INLINE const MB_MODE_INFO *get_mbmi(const MODE_INFO *const mi) { 19233d2500723e5594f3e7c70896ffeeef32b9c950ywan return (mi != NULL) ? &mi->mbmi : NULL; 20233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 21233d2500723e5594f3e7c70896ffeeef32b9c950ywan 22233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Returns a context number for the given MB prediction signal 23233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd) { 24233d2500723e5594f3e7c70896ffeeef32b9c950ywan // Note: 25233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The mode info data structure has a one element border above and to the 26233d2500723e5594f3e7c70896ffeeef32b9c950ywan // left of the entries correpsonding to real macroblocks. 27233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The prediction flags in these dummy entries are initialised to 0. 28233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 29233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_type = left_mbmi != NULL && is_inter_block(left_mbmi) ? 30233d2500723e5594f3e7c70896ffeeef32b9c950ywan left_mbmi->interp_filter : SWITCHABLE_FILTERS; 31233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 32233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_type = above_mbmi != NULL && is_inter_block(above_mbmi) ? 33233d2500723e5594f3e7c70896ffeeef32b9c950ywan above_mbmi->interp_filter : SWITCHABLE_FILTERS; 34233d2500723e5594f3e7c70896ffeeef32b9c950ywan 35233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (left_type == above_type) 36233d2500723e5594f3e7c70896ffeeef32b9c950ywan return left_type; 37233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (left_type == SWITCHABLE_FILTERS && above_type != SWITCHABLE_FILTERS) 38233d2500723e5594f3e7c70896ffeeef32b9c950ywan return above_type; 39233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (left_type != SWITCHABLE_FILTERS && above_type == SWITCHABLE_FILTERS) 40233d2500723e5594f3e7c70896ffeeef32b9c950ywan return left_type; 41233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 42233d2500723e5594f3e7c70896ffeeef32b9c950ywan return SWITCHABLE_FILTERS; 43233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 44233d2500723e5594f3e7c70896ffeeef32b9c950ywan 45233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The mode info data structure has a one element border above and to the 46233d2500723e5594f3e7c70896ffeeef32b9c950ywan// left of the entries corresponding to real macroblocks. 47233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The prediction flags in these dummy entries are initialized to 0. 48233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 0 - inter/inter, inter/--, --/inter, --/-- 49233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 1 - intra/inter, inter/intra 50233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 2 - intra/--, --/intra 51233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 3 - intra/intra 52233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_intra_inter_context(const MACROBLOCKD *xd) { 53233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 54233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 55233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_above = above_mbmi != NULL; 56233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_left = left_mbmi != NULL; 57233d2500723e5594f3e7c70896ffeeef32b9c950ywan 58233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (has_above && has_left) { // both edges available 59233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_intra = !is_inter_block(above_mbmi); 60233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_intra = !is_inter_block(left_mbmi); 61233d2500723e5594f3e7c70896ffeeef32b9c950ywan return left_intra && above_intra ? 3 62233d2500723e5594f3e7c70896ffeeef32b9c950ywan : left_intra || above_intra; 63233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (has_above || has_left) { // one edge available 64233d2500723e5594f3e7c70896ffeeef32b9c950ywan return 2 * !is_inter_block(has_above ? above_mbmi : left_mbmi); 65233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 66233d2500723e5594f3e7c70896ffeeef32b9c950ywan return 0; 67233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 68233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 69233d2500723e5594f3e7c70896ffeeef32b9c950ywan 70233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_reference_mode_context(const VP9_COMMON *cm, 71233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MACROBLOCKD *xd) { 72233d2500723e5594f3e7c70896ffeeef32b9c950ywan int ctx; 73233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 74233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 75233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_above = above_mbmi != NULL; 76233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_left = left_mbmi != NULL; 77233d2500723e5594f3e7c70896ffeeef32b9c950ywan // Note: 78233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The mode info data structure has a one element border above and to the 79233d2500723e5594f3e7c70896ffeeef32b9c950ywan // left of the entries correpsonding to real macroblocks. 80233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The prediction flags in these dummy entries are initialised to 0. 81233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (has_above && has_left) { // both edges available 82233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_second_ref(above_mbmi) && !has_second_ref(left_mbmi)) 83233d2500723e5594f3e7c70896ffeeef32b9c950ywan // neither edge uses comp pred (0/1) 84233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = (above_mbmi->ref_frame[0] == cm->comp_fixed_ref) ^ 85233d2500723e5594f3e7c70896ffeeef32b9c950ywan (left_mbmi->ref_frame[0] == cm->comp_fixed_ref); 86233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (!has_second_ref(above_mbmi)) 87233d2500723e5594f3e7c70896ffeeef32b9c950ywan // one of two edges uses comp pred (2/3) 88233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = 2 + (above_mbmi->ref_frame[0] == cm->comp_fixed_ref || 89233d2500723e5594f3e7c70896ffeeef32b9c950ywan !is_inter_block(above_mbmi)); 90233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (!has_second_ref(left_mbmi)) 91233d2500723e5594f3e7c70896ffeeef32b9c950ywan // one of two edges uses comp pred (2/3) 92233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = 2 + (left_mbmi->ref_frame[0] == cm->comp_fixed_ref || 93233d2500723e5594f3e7c70896ffeeef32b9c950ywan !is_inter_block(left_mbmi)); 94233d2500723e5594f3e7c70896ffeeef32b9c950ywan else // both edges use comp pred (4) 95233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = 4; 96233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (has_above || has_left) { // one edge available 97233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = has_above ? above_mbmi : left_mbmi; 98233d2500723e5594f3e7c70896ffeeef32b9c950ywan 99233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_second_ref(edge_mbmi)) 100233d2500723e5594f3e7c70896ffeeef32b9c950ywan // edge does not use comp pred (0/1) 101233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = edge_mbmi->ref_frame[0] == cm->comp_fixed_ref; 102233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 103233d2500723e5594f3e7c70896ffeeef32b9c950ywan // edge uses comp pred (3) 104233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = 3; 105233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // no edges available (1) 106233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx = 1; 107233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 108233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert(ctx >= 0 && ctx < COMP_INTER_CONTEXTS); 109233d2500723e5594f3e7c70896ffeeef32b9c950ywan return ctx; 110233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 111233d2500723e5594f3e7c70896ffeeef32b9c950ywan 112233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Returns a context number for the given MB prediction signal 113233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm, 114233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MACROBLOCKD *xd) { 115233d2500723e5594f3e7c70896ffeeef32b9c950ywan int pred_context; 116233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 117233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 118233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_in_image = above_mbmi != NULL; 119233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_in_image = left_mbmi != NULL; 120233d2500723e5594f3e7c70896ffeeef32b9c950ywan 121233d2500723e5594f3e7c70896ffeeef32b9c950ywan // Note: 122233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The mode info data structure has a one element border above and to the 123233d2500723e5594f3e7c70896ffeeef32b9c950ywan // left of the entries correpsonding to real macroblocks. 124233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The prediction flags in these dummy entries are initialised to 0. 125233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int fix_ref_idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref]; 126233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int var_ref_idx = !fix_ref_idx; 127233d2500723e5594f3e7c70896ffeeef32b9c950ywan 128233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above_in_image && left_in_image) { // both edges available 129233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_intra = !is_inter_block(above_mbmi); 130233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_intra = !is_inter_block(left_mbmi); 131233d2500723e5594f3e7c70896ffeeef32b9c950ywan 132233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above_intra && left_intra) { // intra/intra (2) 133233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 134233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above_intra || left_intra) { // intra/inter 135233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = above_intra ? left_mbmi : above_mbmi; 136233d2500723e5594f3e7c70896ffeeef32b9c950ywan 137233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_second_ref(edge_mbmi)) // single pred (1/3) 138233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + 2 * (edge_mbmi->ref_frame[0] != cm->comp_var_ref[1]); 139233d2500723e5594f3e7c70896ffeeef32b9c950ywan else // comp pred (1/3) 140233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + 2 * (edge_mbmi->ref_frame[var_ref_idx] 141233d2500723e5594f3e7c70896ffeeef32b9c950ywan != cm->comp_var_ref[1]); 142233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // inter/inter 143233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int l_sg = !has_second_ref(left_mbmi); 144233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int a_sg = !has_second_ref(above_mbmi); 145233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME vrfa = a_sg ? above_mbmi->ref_frame[0] 146233d2500723e5594f3e7c70896ffeeef32b9c950ywan : above_mbmi->ref_frame[var_ref_idx]; 147233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME vrfl = l_sg ? left_mbmi->ref_frame[0] 148233d2500723e5594f3e7c70896ffeeef32b9c950ywan : left_mbmi->ref_frame[var_ref_idx]; 149233d2500723e5594f3e7c70896ffeeef32b9c950ywan 150233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (vrfa == vrfl && cm->comp_var_ref[1] == vrfa) { 151233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 0; 152233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (l_sg && a_sg) { // single/single 153233d2500723e5594f3e7c70896ffeeef32b9c950ywan if ((vrfa == cm->comp_fixed_ref && vrfl == cm->comp_var_ref[0]) || 154233d2500723e5594f3e7c70896ffeeef32b9c950ywan (vrfl == cm->comp_fixed_ref && vrfa == cm->comp_var_ref[0])) 155233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4; 156233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (vrfa == vrfl) 157233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3; 158233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 159233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1; 160233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (l_sg || a_sg) { // single/comp 161233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME vrfc = l_sg ? vrfa : vrfl; 162233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME rfs = a_sg ? vrfa : vrfl; 163233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (vrfc == cm->comp_var_ref[1] && rfs != cm->comp_var_ref[1]) 164233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1; 165233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (rfs == cm->comp_var_ref[1] && vrfc != cm->comp_var_ref[1]) 166233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 167233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 168233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4; 169233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (vrfa == vrfl) { // comp/comp 170233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4; 171233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 172233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 173233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 174233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 175233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above_in_image || left_in_image) { // one edge available 176233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = above_in_image ? above_mbmi : left_mbmi; 177233d2500723e5594f3e7c70896ffeeef32b9c950ywan 178233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!is_inter_block(edge_mbmi)) { 179233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 180233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 181233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (has_second_ref(edge_mbmi)) 182233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4 * (edge_mbmi->ref_frame[var_ref_idx] 183233d2500723e5594f3e7c70896ffeeef32b9c950ywan != cm->comp_var_ref[1]); 184233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 185233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3 * (edge_mbmi->ref_frame[0] != cm->comp_var_ref[1]); 186233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 187233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // no edges available (2) 188233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 189233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 190233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert(pred_context >= 0 && pred_context < REF_CONTEXTS); 191233d2500723e5594f3e7c70896ffeeef32b9c950ywan 192233d2500723e5594f3e7c70896ffeeef32b9c950ywan return pred_context; 193233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 194233d2500723e5594f3e7c70896ffeeef32b9c950ywan 195233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd) { 196233d2500723e5594f3e7c70896ffeeef32b9c950ywan int pred_context; 197233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 198233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 199233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_above = above_mbmi != NULL; 200233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_left = left_mbmi != NULL; 201233d2500723e5594f3e7c70896ffeeef32b9c950ywan // Note: 202233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The mode info data structure has a one element border above and to the 203233d2500723e5594f3e7c70896ffeeef32b9c950ywan // left of the entries correpsonding to real macroblocks. 204233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The prediction flags in these dummy entries are initialised to 0. 205233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (has_above && has_left) { // both edges available 206233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_intra = !is_inter_block(above_mbmi); 207233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_intra = !is_inter_block(left_mbmi); 208233d2500723e5594f3e7c70896ffeeef32b9c950ywan 209233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above_intra && left_intra) { // intra/intra 210233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 211233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above_intra || left_intra) { // intra/inter or inter/intra 212233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = above_intra ? left_mbmi : above_mbmi; 213233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_second_ref(edge_mbmi)) 214233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4 * (edge_mbmi->ref_frame[0] == LAST_FRAME); 215233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 216233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + (edge_mbmi->ref_frame[0] == LAST_FRAME || 217233d2500723e5594f3e7c70896ffeeef32b9c950ywan edge_mbmi->ref_frame[1] == LAST_FRAME); 218233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // inter/inter 219233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_has_second = has_second_ref(above_mbmi); 220233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_has_second = has_second_ref(left_mbmi); 221233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME above0 = above_mbmi->ref_frame[0]; 222233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME above1 = above_mbmi->ref_frame[1]; 223233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME left0 = left_mbmi->ref_frame[0]; 224233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME left1 = left_mbmi->ref_frame[1]; 225233d2500723e5594f3e7c70896ffeeef32b9c950ywan 226233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above_has_second && left_has_second) { 227233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + (above0 == LAST_FRAME || above1 == LAST_FRAME || 228233d2500723e5594f3e7c70896ffeeef32b9c950ywan left0 == LAST_FRAME || left1 == LAST_FRAME); 229233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above_has_second || left_has_second) { 230233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME rfs = !above_has_second ? above0 : left0; 231233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME crf1 = above_has_second ? above0 : left0; 232233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME crf2 = above_has_second ? above1 : left1; 233233d2500723e5594f3e7c70896ffeeef32b9c950ywan 234233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (rfs == LAST_FRAME) 235233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3 + (crf1 == LAST_FRAME || crf2 == LAST_FRAME); 236233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 237233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = (crf1 == LAST_FRAME || crf2 == LAST_FRAME); 238233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 239233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2 * (above0 == LAST_FRAME) + 2 * (left0 == LAST_FRAME); 240233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 241233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 242233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (has_above || has_left) { // one edge available 243233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = has_above ? above_mbmi : left_mbmi; 244233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!is_inter_block(edge_mbmi)) { // intra 245233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 246233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // inter 247233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_second_ref(edge_mbmi)) 248233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4 * (edge_mbmi->ref_frame[0] == LAST_FRAME); 249233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 250233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + (edge_mbmi->ref_frame[0] == LAST_FRAME || 251233d2500723e5594f3e7c70896ffeeef32b9c950ywan edge_mbmi->ref_frame[1] == LAST_FRAME); 252233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 253233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // no edges available 254233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 255233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 256233d2500723e5594f3e7c70896ffeeef32b9c950ywan 257233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert(pred_context >= 0 && pred_context < REF_CONTEXTS); 258233d2500723e5594f3e7c70896ffeeef32b9c950ywan return pred_context; 259233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 260233d2500723e5594f3e7c70896ffeeef32b9c950ywan 261233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd) { 262233d2500723e5594f3e7c70896ffeeef32b9c950ywan int pred_context; 263233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 264233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 265233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_above = above_mbmi != NULL; 266233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_left = left_mbmi != NULL; 267233d2500723e5594f3e7c70896ffeeef32b9c950ywan 268233d2500723e5594f3e7c70896ffeeef32b9c950ywan // Note: 269233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The mode info data structure has a one element border above and to the 270233d2500723e5594f3e7c70896ffeeef32b9c950ywan // left of the entries correpsonding to real macroblocks. 271233d2500723e5594f3e7c70896ffeeef32b9c950ywan // The prediction flags in these dummy entries are initialised to 0. 272233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (has_above && has_left) { // both edges available 273233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_intra = !is_inter_block(above_mbmi); 274233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_intra = !is_inter_block(left_mbmi); 275233d2500723e5594f3e7c70896ffeeef32b9c950ywan 276233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above_intra && left_intra) { // intra/intra 277233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 278233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above_intra || left_intra) { // intra/inter or inter/intra 279233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = above_intra ? left_mbmi : above_mbmi; 280233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_second_ref(edge_mbmi)) { 281233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (edge_mbmi->ref_frame[0] == LAST_FRAME) 282233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3; 283233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 284233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4 * (edge_mbmi->ref_frame[0] == GOLDEN_FRAME); 285233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 286233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + 2 * (edge_mbmi->ref_frame[0] == GOLDEN_FRAME || 287233d2500723e5594f3e7c70896ffeeef32b9c950ywan edge_mbmi->ref_frame[1] == GOLDEN_FRAME); 288233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 289233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // inter/inter 290233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int above_has_second = has_second_ref(above_mbmi); 291233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int left_has_second = has_second_ref(left_mbmi); 292233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME above0 = above_mbmi->ref_frame[0]; 293233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME above1 = above_mbmi->ref_frame[1]; 294233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME left0 = left_mbmi->ref_frame[0]; 295233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME left1 = left_mbmi->ref_frame[1]; 296233d2500723e5594f3e7c70896ffeeef32b9c950ywan 297233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above_has_second && left_has_second) { 298233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above0 == left0 && above1 == left1) 299233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3 * (above0 == GOLDEN_FRAME || 300233d2500723e5594f3e7c70896ffeeef32b9c950ywan above1 == GOLDEN_FRAME || 301233d2500723e5594f3e7c70896ffeeef32b9c950ywan left0 == GOLDEN_FRAME || 302233d2500723e5594f3e7c70896ffeeef32b9c950ywan left1 == GOLDEN_FRAME); 303233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 304233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 305233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above_has_second || left_has_second) { 306233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME rfs = !above_has_second ? above0 : left0; 307233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME crf1 = above_has_second ? above0 : left0; 308233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME crf2 = above_has_second ? above1 : left1; 309233d2500723e5594f3e7c70896ffeeef32b9c950ywan 310233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (rfs == GOLDEN_FRAME) 311233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3 + (crf1 == GOLDEN_FRAME || crf2 == GOLDEN_FRAME); 312233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (rfs == ALTREF_FRAME) 313233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = crf1 == GOLDEN_FRAME || crf2 == GOLDEN_FRAME; 314233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 315233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 1 + 2 * (crf1 == GOLDEN_FRAME || crf2 == GOLDEN_FRAME); 316233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 317233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (above0 == LAST_FRAME && left0 == LAST_FRAME) { 318233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3; 319233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (above0 == LAST_FRAME || left0 == LAST_FRAME) { 320233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MV_REFERENCE_FRAME edge0 = (above0 == LAST_FRAME) ? left0 321233d2500723e5594f3e7c70896ffeeef32b9c950ywan : above0; 322233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4 * (edge0 == GOLDEN_FRAME); 323233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 324233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2 * (above0 == GOLDEN_FRAME) + 325233d2500723e5594f3e7c70896ffeeef32b9c950ywan 2 * (left0 == GOLDEN_FRAME); 326233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 327233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 328233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 329233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else if (has_above || has_left) { // one edge available 330233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *edge_mbmi = has_above ? above_mbmi : left_mbmi; 331233d2500723e5594f3e7c70896ffeeef32b9c950ywan 332233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!is_inter_block(edge_mbmi) || 333233d2500723e5594f3e7c70896ffeeef32b9c950ywan (edge_mbmi->ref_frame[0] == LAST_FRAME && !has_second_ref(edge_mbmi))) 334233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 335233d2500723e5594f3e7c70896ffeeef32b9c950ywan else if (!has_second_ref(edge_mbmi)) 336233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 4 * (edge_mbmi->ref_frame[0] == GOLDEN_FRAME); 337233d2500723e5594f3e7c70896ffeeef32b9c950ywan else 338233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 3 * (edge_mbmi->ref_frame[0] == GOLDEN_FRAME || 339233d2500723e5594f3e7c70896ffeeef32b9c950ywan edge_mbmi->ref_frame[1] == GOLDEN_FRAME); 340233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { // no edges available (2) 341233d2500723e5594f3e7c70896ffeeef32b9c950ywan pred_context = 2; 342233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 343233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert(pred_context >= 0 && pred_context < REF_CONTEXTS); 344233d2500723e5594f3e7c70896ffeeef32b9c950ywan return pred_context; 345233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 346233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Returns a context number for the given MB prediction signal 347233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The mode info data structure has a one element border above and to the 348233d2500723e5594f3e7c70896ffeeef32b9c950ywan// left of the entries corresponding to real blocks. 349233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The prediction flags in these dummy entries are initialized to 0. 350233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_tx_size_context(const MACROBLOCKD *xd) { 351233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int max_tx_size = max_txsize_lookup[xd->mi[0]->mbmi.sb_type]; 352233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const above_mbmi = get_mbmi(get_above_mi(xd)); 353233d2500723e5594f3e7c70896ffeeef32b9c950ywan const MB_MODE_INFO *const left_mbmi = get_mbmi(get_left_mi(xd)); 354233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_above = above_mbmi != NULL; 355233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int has_left = left_mbmi != NULL; 356233d2500723e5594f3e7c70896ffeeef32b9c950ywan int above_ctx = (has_above && !above_mbmi->skip) ? (int)above_mbmi->tx_size 357233d2500723e5594f3e7c70896ffeeef32b9c950ywan : max_tx_size; 358233d2500723e5594f3e7c70896ffeeef32b9c950ywan int left_ctx = (has_left && !left_mbmi->skip) ? (int)left_mbmi->tx_size 359233d2500723e5594f3e7c70896ffeeef32b9c950ywan : max_tx_size; 360233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_left) 361233d2500723e5594f3e7c70896ffeeef32b9c950ywan left_ctx = above_ctx; 362233d2500723e5594f3e7c70896ffeeef32b9c950ywan 363233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!has_above) 364233d2500723e5594f3e7c70896ffeeef32b9c950ywan above_ctx = left_ctx; 365233d2500723e5594f3e7c70896ffeeef32b9c950ywan 366233d2500723e5594f3e7c70896ffeeef32b9c950ywan return (above_ctx + left_ctx) > max_tx_size; 367233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 368233d2500723e5594f3e7c70896ffeeef32b9c950ywan 369233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_get_segment_id(VP9_COMMON *cm, const uint8_t *segment_ids, 370233d2500723e5594f3e7c70896ffeeef32b9c950ywan BLOCK_SIZE bsize, int mi_row, int mi_col) { 371233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int mi_offset = mi_row * cm->mi_cols + mi_col; 372233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int bw = num_8x8_blocks_wide_lookup[bsize]; 373233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int bh = num_8x8_blocks_high_lookup[bsize]; 374233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int xmis = MIN(cm->mi_cols - mi_col, bw); 375233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int ymis = MIN(cm->mi_rows - mi_row, bh); 376233d2500723e5594f3e7c70896ffeeef32b9c950ywan int x, y, segment_id = INT_MAX; 377233d2500723e5594f3e7c70896ffeeef32b9c950ywan 378233d2500723e5594f3e7c70896ffeeef32b9c950ywan for (y = 0; y < ymis; y++) 379233d2500723e5594f3e7c70896ffeeef32b9c950ywan for (x = 0; x < xmis; x++) 380233d2500723e5594f3e7c70896ffeeef32b9c950ywan segment_id = MIN(segment_id, 381233d2500723e5594f3e7c70896ffeeef32b9c950ywan segment_ids[mi_offset + y * cm->mi_cols + x]); 382233d2500723e5594f3e7c70896ffeeef32b9c950ywan 383233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert(segment_id >= 0 && segment_id < MAX_SEGMENTS); 384233d2500723e5594f3e7c70896ffeeef32b9c950ywan return segment_id; 385233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 386