AOMedia AV1 Codec
pickcdef.h
1 /*
2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 #ifndef AOM_AV1_ENCODER_PICKCDEF_H_
12 #define AOM_AV1_ENCODER_PICKCDEF_H_
13 
14 #include "av1/common/cdef.h"
16 
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20 
22 struct MultiThreadInfo;
23 
24 #define REDUCED_PRI_STRENGTHS_LVL1 8
25 #define REDUCED_PRI_STRENGTHS_LVL2 5
26 #define REDUCED_SEC_STRENGTHS_LVL3 2
27 #define REDUCED_PRI_STRENGTHS_LVL4 2
28 
29 #define REDUCED_TOTAL_STRENGTHS_LVL1 \
30  (REDUCED_PRI_STRENGTHS_LVL1 * CDEF_SEC_STRENGTHS)
31 #define REDUCED_TOTAL_STRENGTHS_LVL2 \
32  (REDUCED_PRI_STRENGTHS_LVL2 * CDEF_SEC_STRENGTHS)
33 #define REDUCED_TOTAL_STRENGTHS_LVL3 \
34  (REDUCED_PRI_STRENGTHS_LVL2 * REDUCED_SEC_STRENGTHS_LVL3)
35 #define REDUCED_TOTAL_STRENGTHS_LVL4 \
36  (REDUCED_PRI_STRENGTHS_LVL4 * REDUCED_SEC_STRENGTHS_LVL3)
37 #define TOTAL_STRENGTHS (CDEF_PRI_STRENGTHS * CDEF_SEC_STRENGTHS)
38 
39 static const int priconv_lvl1[REDUCED_PRI_STRENGTHS_LVL1] = { 0, 1, 2, 3,
40  5, 7, 10, 13 };
41 static const int priconv_lvl2[REDUCED_PRI_STRENGTHS_LVL2] = { 0, 2, 4, 8, 14 };
42 static const int priconv_lvl4[REDUCED_PRI_STRENGTHS_LVL4] = { 0, 11 };
43 static const int secconv_lvl3[REDUCED_SEC_STRENGTHS_LVL3] = { 0, 2 };
44 static const int nb_cdef_strengths[CDEF_PICK_METHODS] = {
45  TOTAL_STRENGTHS,
46  REDUCED_TOTAL_STRENGTHS_LVL1,
47  REDUCED_TOTAL_STRENGTHS_LVL2,
48  REDUCED_TOTAL_STRENGTHS_LVL3,
49  REDUCED_TOTAL_STRENGTHS_LVL4,
50  TOTAL_STRENGTHS
51 };
52 
53 typedef void (*copy_fn_t)(uint16_t *dst, int dstride, const void *src,
54  int src_voffset, int src_hoffset, int sstride,
55  int vsize, int hsize);
56 typedef uint64_t (*compute_cdef_dist_t)(void *dst, int dstride, uint16_t *src,
57  cdef_list *dlist, int cdef_count,
58  BLOCK_SIZE bsize, int coeff_shift,
59  int row, int col);
60 
63 typedef struct {
67  const YV12_BUFFER_CONFIG *ref;
71  CommonModeInfoParams *mi_params;
75  struct macroblockd_plane plane[MAX_MB_PLANE];
79  copy_fn_t copy_fn;
83  compute_cdef_dist_t compute_cdef_dist_fn;
87  int total_strengths;
91  int coeff_shift;
95  int damping;
99  int pick_method;
103  int num_planes;
108  int mi_wide_l2[MAX_MB_PLANE];
113  int mi_high_l2[MAX_MB_PLANE];
118  int xdec[MAX_MB_PLANE];
123  int ydec[MAX_MB_PLANE];
127  int bsize[MAX_MB_PLANE];
131  int nvfb;
135  int nhfb;
142  uint64_t (*mse[2])[TOTAL_STRENGTHS];
147  int *sb_index;
151  int sb_count;
152 } CdefSearchCtx;
153 
154 static INLINE int sb_all_skip(const CommonModeInfoParams *const mi_params,
155  int mi_row, int mi_col) {
156  const int maxr = AOMMIN(mi_params->mi_rows - mi_row, MI_SIZE_64X64);
157  const int maxc = AOMMIN(mi_params->mi_cols - mi_col, MI_SIZE_64X64);
158  const int stride = mi_params->mi_stride;
159  MB_MODE_INFO **mbmi = mi_params->mi_grid_base + mi_row * stride + mi_col;
160  for (int r = 0; r < maxr; ++r, mbmi += stride) {
161  for (int c = 0; c < maxc; ++c) {
162  if (!mbmi[c]->skip_txfm) return 0;
163  }
164  }
165  return 1;
166 }
167 
168 // Checks if cdef processing can be skipped for particular sb.
169 // Inputs:
170 // cdef_search_ctx: Pointer to the structure containing parameters related to
171 // CDEF search context.
172 // fbr: Row index in units of 64x64 block
173 // fbc: Column index in units of 64x64 block
174 // Returns:
175 // 1/0 will be returned to indicate skip/don't skip cdef processing of sb
176 // respectively.
177 static INLINE int cdef_sb_skip(const CommonModeInfoParams *const mi_params,
178  int fbr, int fbc) {
179  const MB_MODE_INFO *const mbmi =
180  mi_params->mi_grid_base[MI_SIZE_64X64 * fbr * mi_params->mi_stride +
181  MI_SIZE_64X64 * fbc];
182  // No filtering if the entire filter block is skipped.
183  if (sb_all_skip(mi_params, fbr * MI_SIZE_64X64, fbc * MI_SIZE_64X64))
184  return 1;
185  // Skip odd numbered 64x64 block rows(cols) when bsize is BLOCK_128X128,
186  // BLOCK_64X128(BLOCK_128X128, BLOCK_128X64) as for such blocks CDEF filtering
187  // is done at the corresponding block sizes.
188  if (((fbc & 1) &&
189  (mbmi->bsize == BLOCK_128X128 || mbmi->bsize == BLOCK_128X64)) ||
190  ((fbr & 1) &&
191  (mbmi->bsize == BLOCK_128X128 || mbmi->bsize == BLOCK_64X128)))
192  return 1;
193  return 0;
194 }
195 
196 void av1_cdef_mse_calc_block(CdefSearchCtx *cdef_search_ctx, int fbr, int fbc,
197  int sb_count);
227 void av1_cdef_search(struct MultiThreadInfo *mt_info,
228  const YV12_BUFFER_CONFIG *frame,
229  const YV12_BUFFER_CONFIG *ref, AV1_COMMON *cm,
230  MACROBLOCKD *xd, CDEF_PICK_METHOD pick_method, int rdmult,
231  int skip_cdef_feature, int frames_since_key);
232 
233 #ifdef __cplusplus
234 } // extern "C"
235 #endif
236 #endif // AOM_AV1_ENCODER_PICKCDEF_H_
MB_MODE_INFO ** mi_grid_base
Definition: av1_common_int.h:563
CDEF_PICK_METHOD
This enumeration defines a variety of CDEF pick methods.
Definition: speed_features.h:156
int mi_cols
Definition: av1_common_int.h:531
void av1_cdef_search(struct MultiThreadInfo *mt_info, const YV12_BUFFER_CONFIG *frame, const YV12_BUFFER_CONFIG *ref, AV1_COMMON *cm, MACROBLOCKD *xd, CDEF_PICK_METHOD pick_method, int rdmult, int skip_cdef_feature, int frames_since_key)
AV1 CDEF parameter search.
Params related to MB_MODE_INFO arrays and related info.
Definition: av1_common_int.h:505
int mi_rows
Definition: av1_common_int.h:526
YV12 frame buffer data structure.
Definition: yv12config.h:38
Variables related to current coding block.
Definition: blockd.h:577
int mi_stride
Definition: av1_common_int.h:571
Top level common structure used by both encoder and decoder.
Definition: av1_common_int.h:751
BLOCK_SIZE bsize
The block size of the current coding block.
Definition: blockd.h:228
Stores the prediction/txfm mode of the current coding block.
Definition: blockd.h:222
Encoder parameters related to multi-threading.
Definition: encoder.h:1522