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
is_inter_mode(PREDICTION_MODE mode)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
get_y_mode(const MODE_INFO * mi,int block)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
is_inter_block(const MODE_INFO * mi)96 static INLINE int is_inter_block(const MODE_INFO *mi) {
97 return mi->ref_frame[0] > INTRA_FRAME;
98 }
99
has_second_ref(const MODE_INFO * mi)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
get_plane_type(int plane)203 static INLINE PLANE_TYPE get_plane_type(int plane) {
204 return (PLANE_TYPE)(plane > 0);
205 }
206
get_subsize(BLOCK_SIZE bsize,PARTITION_TYPE partition)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
get_tx_type(PLANE_TYPE plane_type,const MACROBLOCKD * xd)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
get_tx_type_4x4(PLANE_TYPE plane_type,const MACROBLOCKD * xd,int ib)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
get_uv_tx_size(const MODE_INFO * mi,const struct macroblockd_plane * pd)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
get_plane_block_size(BLOCK_SIZE bsize,const struct macroblockd_plane * pd)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
reset_skip_context(MACROBLOCKD * xd,BLOCK_SIZE bsize)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
get_y_mode_probs(const MODE_INFO * mi,const MODE_INFO * above_mi,const MODE_INFO * left_mi,int block)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