1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VPX_VP9_COMMON_VP9_BLOCKD_H_ 12 #define VPX_VP9_COMMON_VP9_BLOCKD_H_ 13 14 #include "./vpx_config.h" 15 16 #include "vpx_dsp/vpx_dsp_common.h" 17 #include "vpx_ports/mem.h" 18 #include "vpx_scale/yv12config.h" 19 20 #include "vp9/common/vp9_common_data.h" 21 #include "vp9/common/vp9_entropy.h" 22 #include "vp9/common/vp9_entropymode.h" 23 #include "vp9/common/vp9_mv.h" 24 #include "vp9/common/vp9_scale.h" 25 #include "vp9/common/vp9_seg_common.h" 26 #include "vp9/common/vp9_tile_common.h" 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #define MAX_MB_PLANE 3 33 34 typedef enum { 35 KEY_FRAME = 0, 36 INTER_FRAME = 1, 37 FRAME_TYPES, 38 } FRAME_TYPE; 39 40 static INLINE int is_inter_mode(PREDICTION_MODE mode) { 41 return mode >= NEARESTMV && mode <= NEWMV; 42 } 43 44 /* For keyframes, intra block modes are predicted by the (already decoded) 45 modes for the Y blocks to the left and above us; for interframes, there 46 is a single probability table. */ 47 48 typedef struct { 49 PREDICTION_MODE as_mode; 50 int_mv as_mv[2]; // first, second inter predictor motion vectors 51 } b_mode_info; 52 53 // Note that the rate-distortion optimization loop, bit-stream writer, and 54 // decoder implementation modules critically rely on the defined entry values 55 // specified herein. They should be refactored concurrently. 56 57 #define NONE -1 58 #define INTRA_FRAME 0 59 #define LAST_FRAME 1 60 #define GOLDEN_FRAME 2 61 #define ALTREF_FRAME 3 62 #define MAX_REF_FRAMES 4 63 64 typedef int8_t MV_REFERENCE_FRAME; 65 66 // This structure now relates to 8x8 block regions. 67 typedef struct MODE_INFO { 68 // Common for both INTER and INTRA blocks 69 BLOCK_SIZE sb_type; 70 PREDICTION_MODE mode; 71 TX_SIZE tx_size; 72 int8_t skip; 73 int8_t segment_id; 74 int8_t seg_id_predicted; // valid only when temporal_update is enabled 75 76 // Only for INTRA blocks 77 PREDICTION_MODE uv_mode; 78 79 // Only for INTER blocks 80 INTERP_FILTER interp_filter; 81 82 // if ref_frame[idx] is equal to ALTREF_FRAME then 83 // MACROBLOCKD::block_ref[idx] is an altref 84 MV_REFERENCE_FRAME ref_frame[2]; 85 86 // TODO(slavarnway): Delete and use bmi[3].as_mv[] instead. 87 int_mv mv[2]; 88 89 b_mode_info bmi[4]; 90 } MODE_INFO; 91 92 static INLINE PREDICTION_MODE get_y_mode(const MODE_INFO *mi, int block) { 93 return mi->sb_type < BLOCK_8X8 ? mi->bmi[block].as_mode : mi->mode; 94 } 95 96 static INLINE int is_inter_block(const MODE_INFO *mi) { 97 return mi->ref_frame[0] > INTRA_FRAME; 98 } 99 100 static INLINE int has_second_ref(const MODE_INFO *mi) { 101 return mi->ref_frame[1] > INTRA_FRAME; 102 } 103 104 PREDICTION_MODE vp9_left_block_mode(const MODE_INFO *cur_mi, 105 const MODE_INFO *left_mi, int b); 106 107 PREDICTION_MODE vp9_above_block_mode(const MODE_INFO *cur_mi, 108 const MODE_INFO *above_mi, int b); 109 110 enum mv_precision { MV_PRECISION_Q3, MV_PRECISION_Q4 }; 111 112 struct buf_2d { 113 uint8_t *buf; 114 int stride; 115 }; 116 117 struct macroblockd_plane { 118 tran_low_t *dqcoeff; 119 int subsampling_x; 120 int subsampling_y; 121 struct buf_2d dst; 122 struct buf_2d pre[2]; 123 ENTROPY_CONTEXT *above_context; 124 ENTROPY_CONTEXT *left_context; 125 int16_t seg_dequant[MAX_SEGMENTS][2]; 126 127 // number of 4x4s in current block 128 uint16_t n4_w, n4_h; 129 // log2 of n4_w, n4_h 130 uint8_t n4_wl, n4_hl; 131 132 // encoder 133 const int16_t *dequant; 134 135 int *eob; 136 }; 137 138 #define BLOCK_OFFSET(x, i) ((x) + (i)*16) 139 140 typedef struct RefBuffer { 141 // TODO(dkovalev): idx is not really required and should be removed, now it 142 // is used in vp9_onyxd_if.c 143 int idx; 144 YV12_BUFFER_CONFIG *buf; 145 struct scale_factors sf; 146 } RefBuffer; 147 148 typedef struct macroblockd { 149 struct macroblockd_plane plane[MAX_MB_PLANE]; 150 uint8_t bmode_blocks_wl; 151 uint8_t bmode_blocks_hl; 152 153 FRAME_COUNTS *counts; 154 TileInfo tile; 155 156 int mi_stride; 157 158 // Grid of 8x8 cells is placed over the block. 159 // If some of them belong to the same mbtree-block 160 // they will just have same mi[i][j] value 161 MODE_INFO **mi; 162 MODE_INFO *left_mi; 163 MODE_INFO *above_mi; 164 165 unsigned int max_blocks_wide; 166 unsigned int max_blocks_high; 167 168 const vpx_prob (*partition_probs)[PARTITION_TYPES - 1]; 169 170 /* Distance of MB away from frame edges */ 171 int mb_to_left_edge; 172 int mb_to_right_edge; 173 int mb_to_top_edge; 174 int mb_to_bottom_edge; 175 176 FRAME_CONTEXT *fc; 177 178 /* pointers to reference frames */ 179 RefBuffer *block_refs[2]; 180 181 /* pointer to current frame */ 182 const YV12_BUFFER_CONFIG *cur_buf; 183 184 ENTROPY_CONTEXT *above_context[MAX_MB_PLANE]; 185 ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16]; 186 187 PARTITION_CONTEXT *above_seg_context; 188 PARTITION_CONTEXT left_seg_context[8]; 189 190 #if CONFIG_VP9_HIGHBITDEPTH 191 /* Bit depth: 8, 10, 12 */ 192 int bd; 193 #endif 194 195 int lossless; 196 int corrupted; 197 198 struct vpx_internal_error_info *error_info; 199 200 PARTITION_TYPE *partition; 201 } MACROBLOCKD; 202 203 static INLINE PLANE_TYPE get_plane_type(int plane) { 204 return (PLANE_TYPE)(plane > 0); 205 } 206 207 static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize, 208 PARTITION_TYPE partition) { 209 return subsize_lookup[partition][bsize]; 210 } 211 212 extern const TX_TYPE intra_mode_to_tx_type_lookup[INTRA_MODES]; 213 214 static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type, 215 const MACROBLOCKD *xd) { 216 const MODE_INFO *const mi = xd->mi[0]; 217 218 if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(mi)) 219 return DCT_DCT; 220 221 return intra_mode_to_tx_type_lookup[mi->mode]; 222 } 223 224 static INLINE TX_TYPE get_tx_type_4x4(PLANE_TYPE plane_type, 225 const MACROBLOCKD *xd, int ib) { 226 const MODE_INFO *const mi = xd->mi[0]; 227 228 if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(mi)) 229 return DCT_DCT; 230 231 return intra_mode_to_tx_type_lookup[get_y_mode(mi, ib)]; 232 } 233 234 void vp9_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y); 235 236 static INLINE TX_SIZE get_uv_tx_size(const MODE_INFO *mi, 237 const struct macroblockd_plane *pd) { 238 assert(mi->sb_type < BLOCK_8X8 || 239 ss_size_lookup[mi->sb_type][pd->subsampling_x][pd->subsampling_y] != 240 BLOCK_INVALID); 241 return uv_txsize_lookup[mi->sb_type][mi->tx_size][pd->subsampling_x] 242 [pd->subsampling_y]; 243 } 244 245 static INLINE BLOCK_SIZE 246 get_plane_block_size(BLOCK_SIZE bsize, const struct macroblockd_plane *pd) { 247 return ss_size_lookup[bsize][pd->subsampling_x][pd->subsampling_y]; 248 } 249 250 static INLINE void reset_skip_context(MACROBLOCKD *xd, BLOCK_SIZE bsize) { 251 int i; 252 for (i = 0; i < MAX_MB_PLANE; i++) { 253 struct macroblockd_plane *const pd = &xd->plane[i]; 254 const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd); 255 memset(pd->above_context, 0, 256 sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide_lookup[plane_bsize]); 257 memset(pd->left_context, 0, 258 sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high_lookup[plane_bsize]); 259 } 260 } 261 262 static INLINE const vpx_prob *get_y_mode_probs(const MODE_INFO *mi, 263 const MODE_INFO *above_mi, 264 const MODE_INFO *left_mi, 265 int block) { 266 const PREDICTION_MODE above = vp9_above_block_mode(mi, above_mi, block); 267 const PREDICTION_MODE left = vp9_left_block_mode(mi, left_mi, block); 268 return vp9_kf_y_mode_prob[above][left]; 269 } 270 271 typedef void (*foreach_transformed_block_visitor)(int plane, int block, int row, 272 int col, 273 BLOCK_SIZE plane_bsize, 274 TX_SIZE tx_size, void *arg); 275 276 void vp9_foreach_transformed_block_in_plane( 277 const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane, 278 foreach_transformed_block_visitor visit, void *arg); 279 280 void vp9_foreach_transformed_block(const MACROBLOCKD *const xd, 281 BLOCK_SIZE bsize, 282 foreach_transformed_block_visitor visit, 283 void *arg); 284 285 void vp9_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd, 286 BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob, 287 int aoff, int loff); 288 289 #ifdef __cplusplus 290 } // extern "C" 291 #endif 292 293 #endif // VPX_VP9_COMMON_VP9_BLOCKD_H_ 294
