vp9_blockd.h 9 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  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.
John Koleszar's avatar
John Koleszar committed
9
10
11
 */


12
13
#ifndef VP9_COMMON_VP9_BLOCKD_H_
#define VP9_COMMON_VP9_BLOCKD_H_
John Koleszar's avatar
John Koleszar committed
14

15
#include "./vpx_config.h"
16
17

#include "vpx_ports/mem.h"
John Koleszar's avatar
John Koleszar committed
18
#include "vpx_scale/yv12config.h"
19
20
21
22

#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_common_data.h"
#include "vp9/common/vp9_enums.h"
23
#include "vp9/common/vp9_filter.h"
24
#include "vp9/common/vp9_mv.h"
25
#include "vp9/common/vp9_scale.h"
26
#include "vp9/common/vp9_seg_common.h"
John Koleszar's avatar
John Koleszar committed
27

28
29
30
31
#ifdef __cplusplus
extern "C" {
#endif

32
#define BLOCK_SIZE_GROUPS 4
Dmitry Kovalev's avatar
Dmitry Kovalev committed
33
#define SKIP_CONTEXTS 3
34
#define INTER_MODE_CONTEXTS 7
35

36
/* Segment Feature Masks */
Paul Wilkins's avatar
Paul Wilkins committed
37
#define MAX_MV_REF_CANDIDATES 2
John Koleszar's avatar
John Koleszar committed
38

Ronald S. Bultje's avatar
Ronald S. Bultje committed
39
40
41
42
#define INTRA_INTER_CONTEXTS 4
#define COMP_INTER_CONTEXTS 5
#define REF_CONTEXTS 5

Dmitry Kovalev's avatar
Dmitry Kovalev committed
43
typedef enum {
44
45
46
  PLANE_TYPE_Y  = 0,
  PLANE_TYPE_UV = 1,
  PLANE_TYPES
47
} PLANE_TYPE;
Scott LaVarnway's avatar
Scott LaVarnway committed
48

49
typedef char ENTROPY_CONTEXT;
John Koleszar's avatar
John Koleszar committed
50

51
52
typedef char PARTITION_CONTEXT;

53
54
55
56
static INLINE int combine_entropy_contexts(ENTROPY_CONTEXT a,
                                           ENTROPY_CONTEXT b) {
  return (a != 0) + (b != 0);
}
John Koleszar's avatar
John Koleszar committed
57

John Koleszar's avatar
John Koleszar committed
58
59
typedef enum {
  KEY_FRAME = 0,
60
  INTER_FRAME = 1,
61
  FRAME_TYPES,
John Koleszar's avatar
John Koleszar committed
62
63
} FRAME_TYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
64
typedef enum {
65
66
67
68
69
70
71
  DC_PRED,         // Average of above and left pixels
  V_PRED,          // Vertical
  H_PRED,          // Horizontal
  D45_PRED,        // Directional 45  deg = round(arctan(1/1) * 180/pi)
  D135_PRED,       // Directional 135 deg = 180 - 45
  D117_PRED,       // Directional 117 deg = 180 - 63
  D153_PRED,       // Directional 153 deg = 180 - 27
Dmitry Kovalev's avatar
Dmitry Kovalev committed
72
  D207_PRED,       // Directional 207 deg = 180 + 27
73
74
  D63_PRED,        // Directional 63  deg = round(arctan(2/1) * 180/pi)
  TM_PRED,         // True-motion
John Koleszar's avatar
John Koleszar committed
75
76
77
78
79
  NEARESTMV,
  NEARMV,
  ZEROMV,
  NEWMV,
  MB_MODE_COUNT
John Koleszar's avatar
John Koleszar committed
80
81
} MB_PREDICTION_MODE;

82
static INLINE int is_inter_mode(MB_PREDICTION_MODE mode) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
83
  return mode >= NEARESTMV && mode <= NEWMV;
84
85
}

86
#define INTRA_MODES (TM_PRED + 1)
John Koleszar's avatar
John Koleszar committed
87

88
#define INTER_MODES (1 + NEWMV - NEARESTMV)
John Koleszar's avatar
John Koleszar committed
89

90
91
#define INTER_OFFSET(mode) ((mode) - NEARESTMV)

John Koleszar's avatar
John Koleszar committed
92
93
94
95
/* For keyframes, intra block modes are predicted by the (already decoded)
   modes for the Y blocks to the left and above us; for interframes, there
   is a single probability table. */

96
typedef struct {
97
  MB_PREDICTION_MODE as_mode;
98
  int_mv as_mv[2];  // first, second inter predictor motion vectors
99
} b_mode_info;
John Koleszar's avatar
John Koleszar committed
100

John Koleszar's avatar
John Koleszar committed
101
typedef enum {
102
  NONE = -1,
John Koleszar's avatar
John Koleszar committed
103
104
105
106
107
  INTRA_FRAME = 0,
  LAST_FRAME = 1,
  GOLDEN_FRAME = 2,
  ALTREF_FRAME = 3,
  MAX_REF_FRAMES = 4
John Koleszar's avatar
John Koleszar committed
108
109
} MV_REFERENCE_FRAME;

110
static INLINE int b_width_log2(BLOCK_SIZE sb_type) {
111
  return b_width_log2_lookup[sb_type];
112
}
113
static INLINE int b_height_log2(BLOCK_SIZE sb_type) {
114
  return b_height_log2_lookup[sb_type];
115
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
116

117
static INLINE int mi_width_log2(BLOCK_SIZE sb_type) {
Jim Bankoski's avatar
Jim Bankoski committed
118
  return mi_width_log2_lookup[sb_type];
119
120
}

Paul Wilkins's avatar
Paul Wilkins committed
121
// This structure now relates to 8x8 block regions.
John Koleszar's avatar
John Koleszar committed
122
123
typedef struct {
  MB_PREDICTION_MODE mode, uv_mode;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
124
  MV_REFERENCE_FRAME ref_frame[2];
125
  TX_SIZE tx_size;
Paul Wilkins's avatar
Paul Wilkins committed
126
  int_mv mv[2];                // for each reference frame used
Paul Wilkins's avatar
Paul Wilkins committed
127
  int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
Paul Wilkins's avatar
Paul Wilkins committed
128

Paul Wilkins's avatar
Paul Wilkins committed
129
  uint8_t mode_context[MAX_REF_FRAMES];
Paul Wilkins's avatar
Paul Wilkins committed
130

131
  unsigned char skip;    // 0=need to decode coeffs, 1=no coefficients
Paul Wilkins's avatar
Paul Wilkins committed
132
  unsigned char segment_id;    // Segment id for this block.
John Koleszar's avatar
John Koleszar committed
133

134
  // Flags used for prediction status of various bit-stream signals
John Koleszar's avatar
John Koleszar committed
135
136
  unsigned char seg_id_predicted;

137
  INTERP_FILTER interp_filter;
138

139
  BLOCK_SIZE sb_type;
John Koleszar's avatar
John Koleszar committed
140
141
} MB_MODE_INFO;

John Koleszar's avatar
John Koleszar committed
142
143
typedef struct {
  MB_MODE_INFO mbmi;
144
  b_mode_info bmi[4];
John Koleszar's avatar
John Koleszar committed
145
146
} MODE_INFO;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
147
148
149
150
151
static INLINE MB_PREDICTION_MODE get_y_mode(const MODE_INFO *mi, int block) {
  return mi->mbmi.sb_type < BLOCK_8X8 ? mi->bmi[block].as_mode
                                      : mi->mbmi.mode;
}

152
static INLINE int is_inter_block(const MB_MODE_INFO *mbmi) {
153
154
155
  return mbmi->ref_frame[0] > INTRA_FRAME;
}

156
157
158
159
static INLINE int has_second_ref(const MB_MODE_INFO *mbmi) {
  return mbmi->ref_frame[1] > INTRA_FRAME;
}

160
161
MB_PREDICTION_MODE vp9_left_block_mode(const MODE_INFO *cur_mi,
                                       const MODE_INFO *left_mi, int b);
162

163
164
MB_PREDICTION_MODE vp9_above_block_mode(const MODE_INFO *cur_mi,
                                        const MODE_INFO *above_mi, int b);
165

166
167
168
169
170
enum mv_precision {
  MV_PRECISION_Q3,
  MV_PRECISION_Q4
};

171
172
173
#if CONFIG_ALPHA
enum { MAX_MB_PLANE = 4 };
#else
174
enum { MAX_MB_PLANE = 3 };
175
#endif
176

177
178
179
180
181
struct buf_2d {
  uint8_t *buf;
  int stride;
};

182
struct macroblockd_plane {
183
  int16_t *dqcoeff;
184
185
186
  PLANE_TYPE plane_type;
  int subsampling_x;
  int subsampling_y;
187
188
  struct buf_2d dst;
  struct buf_2d pre[2];
Dmitry Kovalev's avatar
Dmitry Kovalev committed
189
  const int16_t *dequant;
190
191
  ENTROPY_CONTEXT *above_context;
  ENTROPY_CONTEXT *left_context;
192
193
};

194
#define BLOCK_OFFSET(x, i) ((x) + (i) * 16)
195

Dmitry Kovalev's avatar
Dmitry Kovalev committed
196
197
198
199
200
201
202
203
typedef struct RefBuffer {
  // TODO(dkovalev): idx is not really required and should be removed, now it
  // is used in vp9_onyxd_if.c
  int idx;
  YV12_BUFFER_CONFIG *buf;
  struct scale_factors sf;
} RefBuffer;

Jim Bankoski's avatar
Jim Bankoski committed
204
typedef struct macroblockd {
205
  struct macroblockd_plane plane[MAX_MB_PLANE];
206

John Koleszar's avatar
John Koleszar committed
207
  int mode_info_stride;
John Koleszar's avatar
John Koleszar committed
208

209
210
211
  // A NULL indicates that the 8x8 is not part of the image
  MODE_INFO **mi_8x8;
  MODE_INFO **prev_mi_8x8;
212
  MODE_INFO *mi_stream;
213

John Koleszar's avatar
John Koleszar committed
214
215
  int up_available;
  int left_available;
John Koleszar's avatar
John Koleszar committed
216

John Koleszar's avatar
John Koleszar committed
217
218
219
220
221
222
  /* Distance of MB away from frame edges */
  int mb_to_left_edge;
  int mb_to_right_edge;
  int mb_to_top_edge;
  int mb_to_bottom_edge;

223
  /* pointers to reference frames */
Dmitry Kovalev's avatar
Dmitry Kovalev committed
224
  RefBuffer *block_refs[2];
225

226
227
228
  /* pointer to current frame */
  const YV12_BUFFER_CONFIG *cur_buf;

229
230
231
  /* mc buffer */
  DECLARE_ALIGNED(16, uint8_t, mc_buf[80 * 2 * 80 * 2]);

Yaowu Xu's avatar
Yaowu Xu committed
232
  int lossless;
233
  /* Inverse transform function pointers. */
234
  void (*itxm_add)(const int16_t *input, uint8_t *dest, int stride, int eob);
235

236
  const InterpKernel *interp_kernel;
237

John Koleszar's avatar
John Koleszar committed
238
  int corrupted;
239

240
241
242
243
  /* Y,U,V,(A) */
  ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
  ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16];

244
245
  PARTITION_CONTEXT *above_seg_context;
  PARTITION_CONTEXT left_seg_context[8];
John Koleszar's avatar
John Koleszar committed
246
247
} MACROBLOCKD;

248
249


250
251
static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize,
                                     PARTITION_TYPE partition) {
252
  const BLOCK_SIZE subsize = subsize_lookup[partition][bsize];
253
  assert(subsize < BLOCK_SIZES);
254
255
256
  return subsize;
}

257
258
259
260
261
262
263
264
265
266
extern const TX_TYPE mode2txfm_map[INTRA_MODES];

static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type,
                                  const MACROBLOCKD *xd) {
  const MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;

  if (plane_type != PLANE_TYPE_Y || is_inter_block(mbmi))
    return DCT_DCT;
  return mode2txfm_map[mbmi->mode];
}
267

268
269
static INLINE TX_TYPE get_tx_type_4x4(PLANE_TYPE plane_type,
                                      const MACROBLOCKD *xd, int ib) {
270
  const MODE_INFO *const mi = xd->mi_8x8[0];
271

Dmitry Kovalev's avatar
Dmitry Kovalev committed
272
  if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(&mi->mbmi))
Yaowu Xu's avatar
Yaowu Xu committed
273
    return DCT_DCT;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
274

Dmitry Kovalev's avatar
Dmitry Kovalev committed
275
  return mode2txfm_map[get_y_mode(mi, ib)];
Deb Mukherjee's avatar
Deb Mukherjee committed
276
277
}

278
void vp9_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y);
279

280
static INLINE TX_SIZE get_uv_tx_size_impl(TX_SIZE y_tx_size, BLOCK_SIZE bsize) {
281
282
283
284
285
286
287
288
  if (bsize < BLOCK_8X8) {
    return TX_4X4;
  } else {
    // TODO(dkovalev): Assuming YUV420 (ss_x == 1, ss_y == 1)
    const BLOCK_SIZE plane_bsize = ss_size_lookup[bsize][1][1];
    return MIN(y_tx_size, max_txsize_lookup[plane_bsize]);
  }
}
John Koleszar's avatar
John Koleszar committed
289

290
static INLINE TX_SIZE get_uv_tx_size(const MB_MODE_INFO *mbmi) {
291
  return get_uv_tx_size_impl(mbmi->tx_size, mbmi->sb_type);
292
}
293

294
295
static INLINE BLOCK_SIZE get_plane_block_size(BLOCK_SIZE bsize,
    const struct macroblockd_plane *pd) {
296
  BLOCK_SIZE bs = ss_size_lookup[bsize][pd->subsampling_x][pd->subsampling_y];
297
  assert(bs < BLOCK_SIZES);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
298
299
300
  return bs;
}

John Koleszar's avatar
John Koleszar committed
301
typedef void (*foreach_transformed_block_visitor)(int plane, int block,
302
                                                  BLOCK_SIZE plane_bsize,
303
                                                  TX_SIZE tx_size,
John Koleszar's avatar
John Koleszar committed
304
                                                  void *arg);
Jingning Han's avatar
Jingning Han committed
305

306
void vp9_foreach_transformed_block_in_plane(
307
    const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane,
308
    foreach_transformed_block_visitor visit, void *arg);
John Koleszar's avatar
John Koleszar committed
309

310
311

void vp9_foreach_transformed_block(
312
    const MACROBLOCKD* const xd, BLOCK_SIZE bsize,
313
    foreach_transformed_block_visitor visit, void *arg);
314

315
316
317
static INLINE void txfrm_block_to_raster_xy(BLOCK_SIZE plane_bsize,
                                            TX_SIZE tx_size, int block,
                                            int *x, int *y) {
318
  const int bwl = b_width_log2(plane_bsize);
319
  const int tx_cols_log2 = bwl - tx_size;
320
  const int tx_cols = 1 << tx_cols_log2;
321
  const int raster_mb = block >> (tx_size << 1);
322
  *x = (raster_mb & (tx_cols - 1)) << tx_size;
323
  *y = (raster_mb >> tx_cols_log2) << tx_size;
John Koleszar's avatar
John Koleszar committed
324
}
325

326
327
328
void vp9_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
                      BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob,
                      int aoff, int loff);
329

330
331
332
333
#ifdef __cplusplus
}  // extern "C"
#endif

334
#endif  // VP9_COMMON_VP9_BLOCKD_H_