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1 /* |
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2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
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3 * |
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4 * Use of this source code is governed by a BSD-style license |
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5 * that can be found in the LICENSE file in the root of the source |
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6 * tree. An additional intellectual property rights grant can be found |
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7 * in the file PATENTS. All contributing project authors may |
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8 * be found in the AUTHORS file in the root of the source tree. |
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9 */ |
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10 |
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11 #ifndef VP9_COMMON_VP9_ONYXC_INT_H_ |
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12 #define VP9_COMMON_VP9_ONYXC_INT_H_ |
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13 |
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14 #include "./vpx_config.h" |
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15 #include "vpx/internal/vpx_codec_internal.h" |
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16 #include "./vp9_rtcd.h" |
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17 #include "vp9/common/vp9_loopfilter.h" |
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18 #include "vp9/common/vp9_entropymv.h" |
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19 #include "vp9/common/vp9_entropy.h" |
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20 #include "vp9/common/vp9_entropymode.h" |
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21 #include "vp9/common/vp9_quant_common.h" |
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22 #include "vp9/common/vp9_tile_common.h" |
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23 |
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24 #if CONFIG_VP9_POSTPROC |
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25 #include "vp9/common/vp9_postproc.h" |
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26 #endif |
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27 |
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28 #define ALLOWED_REFS_PER_FRAME 3 |
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29 |
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30 #define NUM_REF_FRAMES_LOG2 3 |
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31 #define NUM_REF_FRAMES (1 << NUM_REF_FRAMES_LOG2) |
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32 |
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33 // 1 scratch frame for the new frame, 3 for scaled references on the encoder |
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34 // TODO(jkoleszar): These 3 extra references could probably come from the |
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35 // normal reference pool. |
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36 #define NUM_YV12_BUFFERS (NUM_REF_FRAMES + 4) |
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37 |
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38 #define NUM_FRAME_CONTEXTS_LOG2 2 |
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39 #define NUM_FRAME_CONTEXTS (1 << NUM_FRAME_CONTEXTS_LOG2) |
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40 |
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41 typedef struct frame_contexts { |
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42 vp9_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1]; |
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43 vp9_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1]; |
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44 vp9_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1]; |
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45 vp9_coeff_probs_model coef_probs[TX_SIZES][BLOCK_TYPES]; |
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46 vp9_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS] |
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47 [SWITCHABLE_FILTERS - 1]; |
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48 vp9_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1]; |
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49 vp9_prob intra_inter_prob[INTRA_INTER_CONTEXTS]; |
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50 vp9_prob comp_inter_prob[COMP_INTER_CONTEXTS]; |
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51 vp9_prob single_ref_prob[REF_CONTEXTS][2]; |
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52 vp9_prob comp_ref_prob[REF_CONTEXTS]; |
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53 struct tx_probs tx_probs; |
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54 vp9_prob mbskip_probs[MBSKIP_CONTEXTS]; |
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55 nmv_context nmvc; |
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56 } FRAME_CONTEXT; |
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57 |
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58 typedef struct { |
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59 unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES]; |
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60 unsigned int uv_mode[INTRA_MODES][INTRA_MODES]; |
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61 unsigned int partition[PARTITION_CONTEXTS][PARTITION_TYPES]; |
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62 vp9_coeff_count_model coef[TX_SIZES][BLOCK_TYPES]; |
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63 unsigned int eob_branch[TX_SIZES][BLOCK_TYPES][REF_TYPES] |
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64 [COEF_BANDS][PREV_COEF_CONTEXTS]; |
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65 unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS] |
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66 [SWITCHABLE_FILTERS]; |
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67 unsigned int inter_mode[INTER_MODE_CONTEXTS][INTER_MODES]; |
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68 unsigned int intra_inter[INTRA_INTER_CONTEXTS][2]; |
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69 unsigned int comp_inter[COMP_INTER_CONTEXTS][2]; |
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70 unsigned int single_ref[REF_CONTEXTS][2][2]; |
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71 unsigned int comp_ref[REF_CONTEXTS][2]; |
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72 struct tx_counts tx; |
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73 unsigned int mbskip[MBSKIP_CONTEXTS][2]; |
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74 nmv_context_counts mv; |
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75 } FRAME_COUNTS; |
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76 |
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77 |
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78 typedef enum { |
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79 SINGLE_PREDICTION_ONLY = 0, |
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80 COMP_PREDICTION_ONLY = 1, |
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81 HYBRID_PREDICTION = 2, |
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82 NB_PREDICTION_TYPES = 3, |
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83 } COMPPREDMODE_TYPE; |
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84 |
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85 typedef struct VP9Common { |
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86 struct vpx_internal_error_info error; |
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87 |
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88 DECLARE_ALIGNED(16, int16_t, y_dequant[QINDEX_RANGE][8]); |
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89 DECLARE_ALIGNED(16, int16_t, uv_dequant[QINDEX_RANGE][8]); |
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90 #if CONFIG_ALPHA |
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91 DECLARE_ALIGNED(16, int16_t, a_dequant[QINDEX_RANGE][8]); |
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92 #endif |
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93 |
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94 COLOR_SPACE color_space; |
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95 |
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96 int width; |
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97 int height; |
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98 int display_width; |
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99 int display_height; |
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100 int last_width; |
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101 int last_height; |
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102 |
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103 // TODO(jkoleszar): this implies chroma ss right now, but could vary per |
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104 // plane. Revisit as part of the future change to YV12_BUFFER_CONFIG to |
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105 // support additional planes. |
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106 int subsampling_x; |
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107 int subsampling_y; |
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108 |
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109 YV12_BUFFER_CONFIG *frame_to_show; |
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110 |
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111 YV12_BUFFER_CONFIG yv12_fb[NUM_YV12_BUFFERS]; |
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112 int fb_idx_ref_cnt[NUM_YV12_BUFFERS]; /* reference counts */ |
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113 int ref_frame_map[NUM_REF_FRAMES]; /* maps fb_idx to reference slot */ |
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114 |
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115 // TODO(jkoleszar): could expand active_ref_idx to 4, with 0 as intra, and |
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116 // roll new_fb_idx into it. |
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117 |
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118 // Each frame can reference ALLOWED_REFS_PER_FRAME buffers |
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119 int active_ref_idx[ALLOWED_REFS_PER_FRAME]; |
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120 struct scale_factors active_ref_scale[ALLOWED_REFS_PER_FRAME]; |
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121 struct scale_factors_common active_ref_scale_comm[ALLOWED_REFS_PER_FRAME]; |
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122 int new_fb_idx; |
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123 |
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124 YV12_BUFFER_CONFIG post_proc_buffer; |
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125 |
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126 FRAME_TYPE last_frame_type; /* last frame's frame type for motion search.*/ |
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127 FRAME_TYPE frame_type; |
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128 |
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129 int show_frame; |
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130 int last_show_frame; |
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131 |
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132 // Flag signaling that the frame is encoded using only INTRA modes. |
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133 int intra_only; |
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134 |
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135 int allow_high_precision_mv; |
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136 |
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137 // Flag signaling that the frame context should be reset to default values. |
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138 // 0 or 1 implies don't reset, 2 reset just the context specified in the |
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139 // frame header, 3 reset all contexts. |
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140 int reset_frame_context; |
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141 |
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142 int frame_flags; |
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143 // MBs, mb_rows/cols is in 16-pixel units; mi_rows/cols is in |
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144 // MODE_INFO (8-pixel) units. |
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145 int MBs; |
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146 int mb_rows, mi_rows; |
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147 int mb_cols, mi_cols; |
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148 int mode_info_stride; |
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149 |
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150 /* profile settings */ |
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151 TX_MODE tx_mode; |
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152 |
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153 int base_qindex; |
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154 int y_dc_delta_q; |
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155 int uv_dc_delta_q; |
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156 int uv_ac_delta_q; |
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157 #if CONFIG_ALPHA |
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158 int a_dc_delta_q; |
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159 int a_ac_delta_q; |
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160 #endif |
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161 |
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162 /* We allocate a MODE_INFO struct for each macroblock, together with |
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163 an extra row on top and column on the left to simplify prediction. */ |
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164 |
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165 MODE_INFO *mip; /* Base of allocated array */ |
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166 MODE_INFO *mi; /* Corresponds to upper left visible macroblock */ |
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167 MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */ |
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168 MODE_INFO *prev_mi; /* 'mi' from last frame (points into prev_mip) */ |
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169 |
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170 MODE_INFO **mi_grid_base; |
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171 MODE_INFO **mi_grid_visible; |
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172 MODE_INFO **prev_mi_grid_base; |
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173 MODE_INFO **prev_mi_grid_visible; |
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174 |
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175 // Persistent mb segment id map used in prediction. |
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176 unsigned char *last_frame_seg_map; |
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177 |
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178 INTERPOLATION_TYPE mcomp_filter_type; |
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179 |
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180 loop_filter_info_n lf_info; |
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181 |
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182 int refresh_frame_context; /* Two state 0 = NO, 1 = YES */ |
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183 |
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184 int ref_frame_sign_bias[MAX_REF_FRAMES]; /* Two state 0, 1 */ |
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185 |
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186 struct loopfilter lf; |
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187 struct segmentation seg; |
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188 |
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189 // Context probabilities for reference frame prediction |
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190 int allow_comp_inter_inter; |
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191 MV_REFERENCE_FRAME comp_fixed_ref; |
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192 MV_REFERENCE_FRAME comp_var_ref[2]; |
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193 COMPPREDMODE_TYPE comp_pred_mode; |
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194 |
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195 FRAME_CONTEXT fc; /* this frame entropy */ |
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196 FRAME_CONTEXT frame_contexts[NUM_FRAME_CONTEXTS]; |
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197 unsigned int frame_context_idx; /* Context to use/update */ |
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198 FRAME_COUNTS counts; |
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199 |
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200 unsigned int current_video_frame; |
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201 int version; |
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202 |
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203 #if CONFIG_VP9_POSTPROC |
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204 struct postproc_state postproc_state; |
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205 #endif |
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206 |
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207 int error_resilient_mode; |
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208 int frame_parallel_decoding_mode; |
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209 |
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210 int log2_tile_cols, log2_tile_rows; |
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211 } VP9_COMMON; |
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212 |
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213 // ref == 0 => LAST_FRAME |
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214 // ref == 1 => GOLDEN_FRAME |
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215 // ref == 2 => ALTREF_FRAME |
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216 static YV12_BUFFER_CONFIG *get_frame_ref_buffer(VP9_COMMON *cm, int ref) { |
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217 return &cm->yv12_fb[cm->active_ref_idx[ref]]; |
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218 } |
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219 |
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220 static YV12_BUFFER_CONFIG *get_frame_new_buffer(VP9_COMMON *cm) { |
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221 return &cm->yv12_fb[cm->new_fb_idx]; |
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222 } |
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223 |
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224 static int get_free_fb(VP9_COMMON *cm) { |
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225 int i; |
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226 for (i = 0; i < NUM_YV12_BUFFERS; i++) |
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227 if (cm->fb_idx_ref_cnt[i] == 0) |
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228 break; |
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229 |
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230 assert(i < NUM_YV12_BUFFERS); |
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231 cm->fb_idx_ref_cnt[i] = 1; |
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232 return i; |
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233 } |
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234 |
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235 static void ref_cnt_fb(int *buf, int *idx, int new_idx) { |
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236 if (buf[*idx] > 0) |
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237 buf[*idx]--; |
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238 |
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239 *idx = new_idx; |
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240 |
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241 buf[new_idx]++; |
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242 } |
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243 |
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244 static int mi_cols_aligned_to_sb(int n_mis) { |
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245 return ALIGN_POWER_OF_TWO(n_mis, MI_BLOCK_SIZE_LOG2); |
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246 } |
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247 |
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248 static INLINE const vp9_prob* get_partition_probs(VP9_COMMON *cm, int ctx) { |
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249 return cm->frame_type == KEY_FRAME ? vp9_kf_partition_probs[ctx] |
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250 : cm->fc.partition_prob[ctx]; |
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251 } |
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252 |
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253 static INLINE void set_skip_context( |
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254 MACROBLOCKD *xd, |
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255 ENTROPY_CONTEXT *above_context[MAX_MB_PLANE], |
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256 ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16], |
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257 int mi_row, int mi_col) { |
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258 const int above_idx = mi_col * 2; |
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259 const int left_idx = (mi_row * 2) & 15; |
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260 int i; |
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261 for (i = 0; i < MAX_MB_PLANE; i++) { |
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262 struct macroblockd_plane *const pd = &xd->plane[i]; |
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263 pd->above_context = above_context[i] + (above_idx >> pd->subsampling_x); |
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264 pd->left_context = left_context[i] + (left_idx >> pd->subsampling_y); |
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265 } |
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266 } |
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267 |
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268 static void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile, |
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269 int mi_row, int bh, |
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270 int mi_col, int bw, |
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271 int mi_rows, int mi_cols) { |
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272 xd->mb_to_top_edge = -((mi_row * MI_SIZE) * 8); |
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273 xd->mb_to_bottom_edge = ((mi_rows - bh - mi_row) * MI_SIZE) * 8; |
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274 xd->mb_to_left_edge = -((mi_col * MI_SIZE) * 8); |
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275 xd->mb_to_right_edge = ((mi_cols - bw - mi_col) * MI_SIZE) * 8; |
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276 |
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277 // Are edges available for intra prediction? |
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278 xd->up_available = (mi_row != 0); |
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279 xd->left_available = (mi_col > tile->mi_col_start); |
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280 } |
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281 |
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282 static void set_prev_mi(VP9_COMMON *cm) { |
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283 const int use_prev_in_find_mv_refs = cm->width == cm->last_width && |
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284 cm->height == cm->last_height && |
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285 !cm->error_resilient_mode && |
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286 !cm->intra_only && |
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287 cm->last_show_frame; |
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288 // Special case: set prev_mi to NULL when the previous mode info |
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289 // context cannot be used. |
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290 cm->prev_mi = use_prev_in_find_mv_refs ? |
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291 cm->prev_mip + cm->mode_info_stride + 1 : NULL; |
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292 } |
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293 |
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294 static INLINE int frame_is_intra_only(const VP9_COMMON *const cm) { |
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295 return cm->frame_type == KEY_FRAME || cm->intra_only; |
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296 } |
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297 |
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298 static INLINE void update_partition_context( |
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299 PARTITION_CONTEXT *above_seg_context, |
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300 PARTITION_CONTEXT left_seg_context[8], |
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301 int mi_row, int mi_col, |
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302 BLOCK_SIZE sb_type, |
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303 BLOCK_SIZE sb_size) { |
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304 PARTITION_CONTEXT *above_ctx = above_seg_context + mi_col; |
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305 PARTITION_CONTEXT *left_ctx = left_seg_context + (mi_row & MI_MASK); |
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306 |
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307 const int bsl = b_width_log2(sb_size), bs = (1 << bsl) / 2; |
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308 const int bwl = b_width_log2(sb_type); |
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309 const int bhl = b_height_log2(sb_type); |
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310 const int boffset = b_width_log2(BLOCK_64X64) - bsl; |
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311 const char pcval0 = ~(0xe << boffset); |
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312 const char pcval1 = ~(0xf << boffset); |
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313 const char pcvalue[2] = {pcval0, pcval1}; |
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314 |
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315 assert(MAX(bwl, bhl) <= bsl); |
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316 |
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317 // update the partition context at the end notes. set partition bits |
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318 // of block sizes larger than the current one to be one, and partition |
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319 // bits of smaller block sizes to be zero. |
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320 vpx_memset(above_ctx, pcvalue[bwl == bsl], bs); |
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321 vpx_memset(left_ctx, pcvalue[bhl == bsl], bs); |
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322 } |
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323 |
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324 static INLINE int partition_plane_context( |
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325 const PARTITION_CONTEXT *above_seg_context, |
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326 const PARTITION_CONTEXT left_seg_context[8], |
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327 int mi_row, int mi_col, |
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328 BLOCK_SIZE sb_type) { |
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329 const PARTITION_CONTEXT *above_ctx = above_seg_context + mi_col; |
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330 const PARTITION_CONTEXT *left_ctx = left_seg_context + (mi_row & MI_MASK); |
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331 |
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332 int bsl = mi_width_log2(sb_type), bs = 1 << bsl; |
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333 int above = 0, left = 0, i; |
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334 int boffset = mi_width_log2(BLOCK_64X64) - bsl; |
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335 |
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336 assert(mi_width_log2(sb_type) == mi_height_log2(sb_type)); |
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337 assert(bsl >= 0); |
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338 assert(boffset >= 0); |
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339 |
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340 for (i = 0; i < bs; i++) { |
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341 above |= above_ctx[i]; |
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342 left |= left_ctx[i]; |
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343 } |
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344 above = (above & (1 << boffset)) > 0; |
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345 left = (left & (1 << boffset)) > 0; |
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346 |
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347 return (left * 2 + above) + bsl * PARTITION_PLOFFSET; |
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348 } |
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349 |
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350 #endif // VP9_COMMON_VP9_ONYXC_INT_H_ |