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
12 #ifndef VP9_COMMON_VP9_BLOCKD_H_
13 #define VP9_COMMON_VP9_BLOCKD_H_
14
15 #include "./vpx_config.h"
16
17 #include "vpx_dsp/vpx_dsp_common.h"
18 #include "vpx_ports/mem.h"
19 #include "vpx_scale/yv12config.h"
20
21 #include "vp9/common/vp9_common_data.h"
22 #include "vp9/common/vp9_entropy.h"
23 #include "vp9/common/vp9_entropymode.h"
24 #include "vp9/common/vp9_mv.h"
25 #include "vp9/common/vp9_scale.h"
26 #include "vp9/common/vp9_seg_common.h"
27 #include "vp9/common/vp9_tile_common.h"
28
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32
33 #define MAX_MB_PLANE 3
34
35 typedef enum {
36 KEY_FRAME = 0,
37 INTER_FRAME = 1,
38 FRAME_TYPES,
39 } FRAME_TYPE;
40
is_inter_mode(PREDICTION_MODE mode)41 static INLINE int is_inter_mode(PREDICTION_MODE mode) {
42 return mode >= NEARESTMV && mode <= NEWMV;
43 }
44
45 /* For keyframes, intra block modes are predicted by the (already decoded)
46 modes for the Y blocks to the left and above us; for interframes, there
47 is a single probability table. */
48
49 typedef struct {
50 PREDICTION_MODE as_mode;
51 int_mv as_mv[2]; // first, second inter predictor motion vectors
52 } b_mode_info;
53
54 // Note that the rate-distortion optimization loop, bit-stream writer, and
55 // decoder implementation modules critically rely on the defined entry values
56 // specified herein. They should be refactored concurrently.
57
58 #define NONE -1
59 #define INTRA_FRAME 0
60 #define LAST_FRAME 1
61 #define GOLDEN_FRAME 2
62 #define ALTREF_FRAME 3
63 #define MAX_REF_FRAMES 4
64 typedef int8_t MV_REFERENCE_FRAME;
65
66 // This structure now relates to 8x8 block regions.
67 typedef struct {
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 MV_REFERENCE_FRAME ref_frame[2];
82
83 // TODO(slavarnway): Delete and use bmi[3].as_mv[] instead.
84 int_mv mv[2];
85 } MB_MODE_INFO;
86
87 typedef struct MODE_INFO {
88 MB_MODE_INFO mbmi;
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->mbmi.sb_type < BLOCK_8X8 ? mi->bmi[block].as_mode
94 : mi->mbmi.mode;
95 }
96
is_inter_block(const MB_MODE_INFO * mbmi)97 static INLINE int is_inter_block(const MB_MODE_INFO *mbmi) {
98 return mbmi->ref_frame[0] > INTRA_FRAME;
99 }
100
has_second_ref(const MB_MODE_INFO * mbmi)101 static INLINE int has_second_ref(const MB_MODE_INFO *mbmi) {
102 return mbmi->ref_frame[1] > INTRA_FRAME;
103 }
104
105 PREDICTION_MODE vp9_left_block_mode(const MODE_INFO *cur_mi,
106 const MODE_INFO *left_mi, int b);
107
108 PREDICTION_MODE vp9_above_block_mode(const MODE_INFO *cur_mi,
109 const MODE_INFO *above_mi, int b);
110
111 enum mv_precision {
112 MV_PRECISION_Q3,
113 MV_PRECISION_Q4
114 };
115
116 struct buf_2d {
117 uint8_t *buf;
118 int stride;
119 };
120
121 struct macroblockd_plane {
122 tran_low_t *dqcoeff;
123 int subsampling_x;
124 int subsampling_y;
125 struct buf_2d dst;
126 struct buf_2d pre[2];
127 ENTROPY_CONTEXT *above_context;
128 ENTROPY_CONTEXT *left_context;
129 int16_t seg_dequant[MAX_SEGMENTS][2];
130
131 // number of 4x4s in current block
132 uint16_t n4_w, n4_h;
133 // log2 of n4_w, n4_h
134 uint8_t n4_wl, n4_hl;
135
136 // encoder
137 const int16_t *dequant;
138 };
139
140 #define BLOCK_OFFSET(x, i) ((x) + (i) * 16)
141
142 typedef struct RefBuffer {
143 // TODO(dkovalev): idx is not really required and should be removed, now it
144 // is used in vp9_onyxd_if.c
145 int idx;
146 YV12_BUFFER_CONFIG *buf;
147 struct scale_factors sf;
148 } RefBuffer;
149
150 typedef struct macroblockd {
151 struct macroblockd_plane plane[MAX_MB_PLANE];
152 uint8_t bmode_blocks_wl;
153 uint8_t bmode_blocks_hl;
154
155 FRAME_COUNTS *counts;
156 TileInfo tile;
157
158 int mi_stride;
159
160 MODE_INFO **mi;
161 MODE_INFO *left_mi;
162 MODE_INFO *above_mi;
163 MB_MODE_INFO *left_mbmi;
164 MB_MODE_INFO *above_mbmi;
165
166 int up_available;
167 int left_available;
168
169 const vpx_prob (*partition_probs)[PARTITION_TYPES - 1];
170
171 /* Distance of MB away from frame edges */
172 int mb_to_left_edge;
173 int mb_to_right_edge;
174 int mb_to_top_edge;
175 int mb_to_bottom_edge;
176
177 FRAME_CONTEXT *fc;
178
179 /* pointers to reference frames */
180 RefBuffer *block_refs[2];
181
182 /* pointer to current frame */
183 const YV12_BUFFER_CONFIG *cur_buf;
184
185 ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
186 ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16];
187
188 PARTITION_CONTEXT *above_seg_context;
189 PARTITION_CONTEXT left_seg_context[8];
190
191 #if CONFIG_VP9_HIGHBITDEPTH
192 /* Bit depth: 8, 10, 12 */
193 int bd;
194 #endif
195
196 int lossless;
197 int corrupted;
198
199 struct vpx_internal_error_info *error_info;
200 } MACROBLOCKD;
201
get_plane_type(int plane)202 static INLINE PLANE_TYPE get_plane_type(int plane) {
203 return (PLANE_TYPE)(plane > 0);
204 }
205
get_subsize(BLOCK_SIZE bsize,PARTITION_TYPE partition)206 static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize,
207 PARTITION_TYPE partition) {
208 return subsize_lookup[partition][bsize];
209 }
210
211 extern const TX_TYPE intra_mode_to_tx_type_lookup[INTRA_MODES];
212
get_tx_type(PLANE_TYPE plane_type,const MACROBLOCKD * xd)213 static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type,
214 const MACROBLOCKD *xd) {
215 const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
216
217 if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(mbmi))
218 return DCT_DCT;
219
220 return intra_mode_to_tx_type_lookup[mbmi->mode];
221 }
222
get_tx_type_4x4(PLANE_TYPE plane_type,const MACROBLOCKD * xd,int ib)223 static INLINE TX_TYPE get_tx_type_4x4(PLANE_TYPE plane_type,
224 const MACROBLOCKD *xd, int ib) {
225 const MODE_INFO *const mi = xd->mi[0];
226
227 if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(&mi->mbmi))
228 return DCT_DCT;
229
230 return intra_mode_to_tx_type_lookup[get_y_mode(mi, ib)];
231 }
232
233 void vp9_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y);
234
get_uv_tx_size_impl(TX_SIZE y_tx_size,BLOCK_SIZE bsize,int xss,int yss)235 static INLINE TX_SIZE get_uv_tx_size_impl(TX_SIZE y_tx_size, BLOCK_SIZE bsize,
236 int xss, int yss) {
237 if (bsize < BLOCK_8X8) {
238 return TX_4X4;
239 } else {
240 const BLOCK_SIZE plane_bsize = ss_size_lookup[bsize][xss][yss];
241 return VPXMIN(y_tx_size, max_txsize_lookup[plane_bsize]);
242 }
243 }
244
get_uv_tx_size(const MB_MODE_INFO * mbmi,const struct macroblockd_plane * pd)245 static INLINE TX_SIZE get_uv_tx_size(const MB_MODE_INFO *mbmi,
246 const struct macroblockd_plane *pd) {
247 return get_uv_tx_size_impl(mbmi->tx_size, mbmi->sb_type, pd->subsampling_x,
248 pd->subsampling_y);
249 }
250
get_plane_block_size(BLOCK_SIZE bsize,const struct macroblockd_plane * pd)251 static INLINE BLOCK_SIZE get_plane_block_size(BLOCK_SIZE bsize,
252 const struct macroblockd_plane *pd) {
253 return ss_size_lookup[bsize][pd->subsampling_x][pd->subsampling_y];
254 }
255
reset_skip_context(MACROBLOCKD * xd,BLOCK_SIZE bsize)256 static INLINE void reset_skip_context(MACROBLOCKD *xd, BLOCK_SIZE bsize) {
257 int i;
258 for (i = 0; i < MAX_MB_PLANE; i++) {
259 struct macroblockd_plane *const pd = &xd->plane[i];
260 const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
261 memset(pd->above_context, 0,
262 sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide_lookup[plane_bsize]);
263 memset(pd->left_context, 0,
264 sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high_lookup[plane_bsize]);
265 }
266 }
267
get_y_mode_probs(const MODE_INFO * mi,const MODE_INFO * above_mi,const MODE_INFO * left_mi,int block)268 static INLINE const vpx_prob *get_y_mode_probs(const MODE_INFO *mi,
269 const MODE_INFO *above_mi,
270 const MODE_INFO *left_mi,
271 int block) {
272 const PREDICTION_MODE above = vp9_above_block_mode(mi, above_mi, block);
273 const PREDICTION_MODE left = vp9_left_block_mode(mi, left_mi, block);
274 return vp9_kf_y_mode_prob[above][left];
275 }
276
277 typedef void (*foreach_transformed_block_visitor)(int plane, int block,
278 BLOCK_SIZE plane_bsize,
279 TX_SIZE tx_size,
280 void *arg);
281
282 void vp9_foreach_transformed_block_in_plane(
283 const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane,
284 foreach_transformed_block_visitor visit, void *arg);
285
286
287 void vp9_foreach_transformed_block(
288 const MACROBLOCKD* const xd, BLOCK_SIZE bsize,
289 foreach_transformed_block_visitor visit, void *arg);
290
txfrm_block_to_raster_xy(BLOCK_SIZE plane_bsize,TX_SIZE tx_size,int block,int * x,int * y)291 static INLINE void txfrm_block_to_raster_xy(BLOCK_SIZE plane_bsize,
292 TX_SIZE tx_size, int block,
293 int *x, int *y) {
294 const int bwl = b_width_log2_lookup[plane_bsize];
295 const int tx_cols_log2 = bwl - tx_size;
296 const int tx_cols = 1 << tx_cols_log2;
297 const int raster_mb = block >> (tx_size << 1);
298 *x = (raster_mb & (tx_cols - 1)) << tx_size;
299 *y = (raster_mb >> tx_cols_log2) << tx_size;
300 }
301
302 void vp9_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
303 BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob,
304 int aoff, int loff);
305
306 #ifdef __cplusplus
307 } // extern "C"
308 #endif
309
310 #endif // VP9_COMMON_VP9_BLOCKD_H_
311