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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 VP9_ENCODER_VP9_BLOCK_H_
12 #define VP9_ENCODER_VP9_BLOCK_H_
13 
14 #include "vpx_util/vpx_thread.h"
15 
16 #include "vp9/common/vp9_entropymv.h"
17 #include "vp9/common/vp9_entropy.h"
18 
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22 
23 typedef struct {
24   unsigned int sse;
25   int sum;
26   unsigned int var;
27 } diff;
28 
29 struct macroblock_plane {
30   DECLARE_ALIGNED(16, int16_t, src_diff[64 * 64]);
31   tran_low_t *qcoeff;
32   tran_low_t *coeff;
33   uint16_t *eobs;
34   struct buf_2d src;
35 
36   // Quantizer setings
37   int16_t *quant_fp;
38   int16_t *round_fp;
39   int16_t *quant;
40   int16_t *quant_shift;
41   int16_t *zbin;
42   int16_t *round;
43 
44   int64_t quant_thred[2];
45 };
46 
47 /* The [2] dimension is for whether we skip the EOB node (i.e. if previous
48  * coefficient in this block was zero) or not. */
49 typedef unsigned int vp9_coeff_cost[PLANE_TYPES][REF_TYPES][COEF_BANDS][2]
50                                    [COEFF_CONTEXTS][ENTROPY_TOKENS];
51 
52 typedef struct {
53   int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
54   uint8_t mode_context[MAX_REF_FRAMES];
55 } MB_MODE_INFO_EXT;
56 
57 typedef struct {
58   int col_min;
59   int col_max;
60   int row_min;
61   int row_max;
62 } MvLimits;
63 
64 typedef struct macroblock MACROBLOCK;
65 struct macroblock {
66 // cf. https://bugs.chromium.org/p/webm/issues/detail?id=1054
67 #if defined(_MSC_VER) && _MSC_VER < 1900
68   int64_t bsse[MAX_MB_PLANE << 2];
69 #endif
70 
71   struct macroblock_plane plane[MAX_MB_PLANE];
72 
73   MACROBLOCKD e_mbd;
74   MB_MODE_INFO_EXT *mbmi_ext;
75   MB_MODE_INFO_EXT *mbmi_ext_base;
76   int skip_block;
77   int select_tx_size;
78   int skip_recode;
79   int skip_optimize;
80   int q_index;
81   int block_qcoeff_opt;
82   int block_tx_domain;
83 
84   // The equivalent error at the current rdmult of one whole bit (not one
85   // bitcost unit).
86   int errorperbit;
87   // The equivalend SAD error of one (whole) bit at the current quantizer
88   // for large blocks.
89   int sadperbit16;
90   // The equivalend SAD error of one (whole) bit at the current quantizer
91   // for sub-8x8 blocks.
92   int sadperbit4;
93   int rddiv;
94   int rdmult;
95   int mb_energy;
96 
97   // These are set to their default values at the beginning, and then adjusted
98   // further in the encoding process.
99   BLOCK_SIZE min_partition_size;
100   BLOCK_SIZE max_partition_size;
101 
102   int mv_best_ref_index[MAX_REF_FRAMES];
103   unsigned int max_mv_context[MAX_REF_FRAMES];
104   unsigned int source_variance;
105   unsigned int pred_sse[MAX_REF_FRAMES];
106   int pred_mv_sad[MAX_REF_FRAMES];
107 
108   int nmvjointcost[MV_JOINTS];
109   int *nmvcost[2];
110   int *nmvcost_hp[2];
111   int **mvcost;
112 
113   int nmvjointsadcost[MV_JOINTS];
114   int *nmvsadcost[2];
115   int *nmvsadcost_hp[2];
116   int **mvsadcost;
117 
118   // These define limits to motion vector components to prevent them
119   // from extending outside the UMV borders
120   MvLimits mv_limits;
121 
122   // Notes transform blocks where no coefficents are coded.
123   // Set during mode selection. Read during block encoding.
124   uint8_t zcoeff_blk[TX_SIZES][256];
125 
126   // Accumulate the tx block eobs in a partition block.
127   int32_t sum_y_eobs[TX_SIZES];
128 
129   int skip;
130 
131   int encode_breakout;
132 
133   // note that token_costs is the cost when eob node is skipped
134   vp9_coeff_cost token_costs[TX_SIZES];
135 
136   int optimize;
137 
138   // indicate if it is in the rd search loop or encoding process
139   int use_lp32x32fdct;
140   int skip_encode;
141 
142   // In first pass, intra prediction is done based on source pixels
143   // at tile boundaries
144   int fp_src_pred;
145 
146   // use fast quantization process
147   int quant_fp;
148 
149   // skip forward transform and quantization
150   uint8_t skip_txfm[MAX_MB_PLANE << 2];
151 #define SKIP_TXFM_NONE 0
152 #define SKIP_TXFM_AC_DC 1
153 #define SKIP_TXFM_AC_ONLY 2
154 
155 // cf. https://bugs.chromium.org/p/webm/issues/detail?id=1054
156 #if !defined(_MSC_VER) || _MSC_VER >= 1900
157   int64_t bsse[MAX_MB_PLANE << 2];
158 #endif
159 
160   // Used to store sub partition's choices.
161   MV pred_mv[MAX_REF_FRAMES];
162 
163   // Strong color activity detection. Used in RTC coding mode to enhance
164   // the visual quality at the boundary of moving color objects.
165   uint8_t color_sensitivity[2];
166 
167   uint8_t sb_is_skin;
168 
169   uint8_t skip_low_source_sad;
170 
171   uint8_t lowvar_highsumdiff;
172 
173   uint8_t last_sb_high_content;
174 
175   // For each superblock: saves the content value (e.g., low/high sad/sumdiff)
176   // based on source sad, prior to encoding the frame.
177   uint8_t content_state_sb;
178 
179   // Used to save the status of whether a block has a low variance in
180   // choose_partitioning. 0 for 64x64, 1~2 for 64x32, 3~4 for 32x64, 5~8 for
181   // 32x32, 9~24 for 16x16.
182   uint8_t variance_low[25];
183 
184   void (*fwd_txm4x4)(const int16_t *input, tran_low_t *output, int stride);
185   void (*itxm_add)(const tran_low_t *input, uint8_t *dest, int stride, int eob);
186 #if CONFIG_VP9_HIGHBITDEPTH
187   void (*highbd_itxm_add)(const tran_low_t *input, uint16_t *dest, int stride,
188                           int eob, int bd);
189 #endif
190 };
191 
192 #ifdef __cplusplus
193 }  // extern "C"
194 #endif
195 
196 #endif  // VP9_ENCODER_VP9_BLOCK_H_
197