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 
24 typedef enum {
25  CDEF_NONE = 0,
26  CDEF_ALL = 1,
27  CDEF_REFERENCE = 2,
28 } CDEF_CONTROL;
29 
31 struct MultiThreadInfo;
32 
33 #define REDUCED_PRI_STRENGTHS_LVL1 8
34 #define REDUCED_PRI_STRENGTHS_LVL2 5
35 #define REDUCED_SEC_STRENGTHS_LVL3 2
36 #define REDUCED_SEC_STRENGTHS_LVL5 1
37 #define REDUCED_PRI_STRENGTHS_LVL4 2
38 
39 #define REDUCED_TOTAL_STRENGTHS_LVL1 \
40  (REDUCED_PRI_STRENGTHS_LVL1 * CDEF_SEC_STRENGTHS)
41 #define REDUCED_TOTAL_STRENGTHS_LVL2 \
42  (REDUCED_PRI_STRENGTHS_LVL2 * CDEF_SEC_STRENGTHS)
43 #define REDUCED_TOTAL_STRENGTHS_LVL3 \
44  (REDUCED_PRI_STRENGTHS_LVL2 * REDUCED_SEC_STRENGTHS_LVL3)
45 #define REDUCED_TOTAL_STRENGTHS_LVL4 \
46  (REDUCED_PRI_STRENGTHS_LVL4 * REDUCED_SEC_STRENGTHS_LVL3)
47 #define REDUCED_TOTAL_STRENGTHS_LVL5 \
48  (REDUCED_PRI_STRENGTHS_LVL4 * REDUCED_SEC_STRENGTHS_LVL5)
49 #define TOTAL_STRENGTHS (CDEF_PRI_STRENGTHS * CDEF_SEC_STRENGTHS)
50 
51 static const int priconv_lvl1[REDUCED_PRI_STRENGTHS_LVL1] = { 0, 1, 2, 3,
52  5, 7, 10, 13 };
53 static const int priconv_lvl2[REDUCED_PRI_STRENGTHS_LVL2] = { 0, 2, 4, 8, 14 };
54 static const int priconv_lvl4[REDUCED_PRI_STRENGTHS_LVL4] = { 0, 11 };
55 static const int priconv_lvl5[REDUCED_PRI_STRENGTHS_LVL4] = { 0, 5 };
56 static const int secconv_lvl3[REDUCED_SEC_STRENGTHS_LVL3] = { 0, 2 };
57 static const int secconv_lvl5[REDUCED_SEC_STRENGTHS_LVL5] = { 0 };
58 static const int nb_cdef_strengths[CDEF_PICK_METHODS] = {
59  TOTAL_STRENGTHS,
60  REDUCED_TOTAL_STRENGTHS_LVL1,
61  REDUCED_TOTAL_STRENGTHS_LVL2,
62  REDUCED_TOTAL_STRENGTHS_LVL3,
63  REDUCED_TOTAL_STRENGTHS_LVL4,
64  REDUCED_TOTAL_STRENGTHS_LVL5,
65  TOTAL_STRENGTHS
66 };
67 
68 typedef void (*copy_fn_t)(uint16_t *dst, int dstride, const uint8_t *src,
69  int src_voffset, int src_hoffset, int sstride,
70  int vsize, int hsize);
71 typedef uint64_t (*compute_cdef_dist_t)(void *dst, int dstride, uint16_t *src,
72  cdef_list *dlist, int cdef_count,
73  BLOCK_SIZE bsize, int coeff_shift,
74  int row, int col);
75 
78 typedef struct {
82  const YV12_BUFFER_CONFIG *ref;
86  CommonModeInfoParams *mi_params;
90  struct macroblockd_plane plane[MAX_MB_PLANE];
94  copy_fn_t copy_fn;
98  compute_cdef_dist_t compute_cdef_dist_fn;
102  int total_strengths;
106  int coeff_shift;
110  int damping;
114  int pick_method;
118  int num_planes;
123  int mi_wide_l2[MAX_MB_PLANE];
128  int mi_high_l2[MAX_MB_PLANE];
133  int xdec[MAX_MB_PLANE];
138  int ydec[MAX_MB_PLANE];
142  int bsize[MAX_MB_PLANE];
146  int nvfb;
150  int nhfb;
157  uint64_t (*mse[2])[TOTAL_STRENGTHS];
162  int *sb_index;
166  int sb_count;
171  bool use_highbitdepth;
172 } CdefSearchCtx;
173 
174 static INLINE int sb_all_skip(const CommonModeInfoParams *const mi_params,
175  int mi_row, int mi_col) {
176  const int maxr = AOMMIN(mi_params->mi_rows - mi_row, MI_SIZE_64X64);
177  const int maxc = AOMMIN(mi_params->mi_cols - mi_col, MI_SIZE_64X64);
178  const int stride = mi_params->mi_stride;
179  MB_MODE_INFO **mbmi = mi_params->mi_grid_base + mi_row * stride + mi_col;
180  for (int r = 0; r < maxr; ++r, mbmi += stride) {
181  for (int c = 0; c < maxc; ++c) {
182  if (!mbmi[c]->skip_txfm) return 0;
183  }
184  }
185  return 1;
186 }
187 
188 // Checks if cdef processing can be skipped for particular sb.
189 // Inputs:
190 // cdef_search_ctx: Pointer to the structure containing parameters related to
191 // CDEF search context.
192 // fbr: Row index in units of 64x64 block
193 // fbc: Column index in units of 64x64 block
194 // Returns:
195 // 1/0 will be returned to indicate skip/don't skip cdef processing of sb
196 // respectively.
197 static INLINE int cdef_sb_skip(const CommonModeInfoParams *const mi_params,
198  int fbr, int fbc) {
199  const MB_MODE_INFO *const mbmi =
200  mi_params->mi_grid_base[MI_SIZE_64X64 * fbr * mi_params->mi_stride +
201  MI_SIZE_64X64 * fbc];
202  // No filtering if the entire filter block is skipped.
203  if (sb_all_skip(mi_params, fbr * MI_SIZE_64X64, fbc * MI_SIZE_64X64))
204  return 1;
205  // Skip odd numbered 64x64 block rows(cols) when bsize is BLOCK_128X128,
206  // BLOCK_64X128(BLOCK_128X128, BLOCK_128X64) as for such blocks CDEF filtering
207  // is done at the corresponding block sizes.
208  if (((fbc & 1) &&
209  (mbmi->bsize == BLOCK_128X128 || mbmi->bsize == BLOCK_128X64)) ||
210  ((fbr & 1) &&
211  (mbmi->bsize == BLOCK_128X128 || mbmi->bsize == BLOCK_64X128)))
212  return 1;
213  return 0;
214 }
215 
216 void av1_cdef_dealloc_data(CdefSearchCtx *cdef_search_ctx);
217 
218 void av1_cdef_mse_calc_block(CdefSearchCtx *cdef_search_ctx,
219  struct aom_internal_error_info *error_info,
220  int fbr, int fbc, int sb_count);
242 void av1_cdef_search(struct AV1_COMP *cpi);
243 
255 void av1_pick_cdef_from_qp(AV1_COMMON *const cm, int skip_cdef,
256  int is_screen_content);
257 
258 #ifdef __cplusplus
259 } // extern "C"
260 #endif
261 #endif // AOM_AV1_ENCODER_PICKCDEF_H_
void av1_cdef_search(struct AV1_COMP *cpi)
AV1 CDEF parameter search.
void av1_pick_cdef_from_qp(AV1_COMMON *const cm, int skip_cdef, int is_screen_content)
AV1 CDEF level from QP.
Top level common structure used by both encoder and decoder.
Definition: av1_common_int.h:752
Top level encoder structure.
Definition: encoder.h:2872
Params related to MB_MODE_INFO arrays and related info.
Definition: av1_common_int.h:503
int mi_rows
Definition: av1_common_int.h:524
int mi_cols
Definition: av1_common_int.h:529
int mi_stride
Definition: av1_common_int.h:569
MB_MODE_INFO ** mi_grid_base
Definition: av1_common_int.h:561
Stores the prediction/txfm mode of the current coding block.
Definition: blockd.h:222
BLOCK_SIZE bsize
The block size of the current coding block.
Definition: blockd.h:228
Encoder parameters related to multi-threading.
Definition: encoder.h:1728
YV12 frame buffer data structure.
Definition: yv12config.h:44