xref: /aosp_15_r20/external/libaom/av1/decoder/inspection.c (revision 77c1e3ccc04c968bd2bc212e87364f250e820521)
1 /*
2  * Copyright (c) 2017, 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 
12 #include <stdio.h>
13 #include <stdlib.h>
14 
15 #include "av1/decoder/decoder.h"
16 #include "av1/decoder/inspection.h"
17 #include "av1/common/enums.h"
18 #include "av1/common/cdef.h"
19 
ifd_init_mi_rc(insp_frame_data * fd,int mi_cols,int mi_rows)20 static void ifd_init_mi_rc(insp_frame_data *fd, int mi_cols, int mi_rows) {
21   fd->mi_cols = mi_cols;
22   fd->mi_rows = mi_rows;
23   fd->mi_grid = (insp_mi_data *)aom_malloc(sizeof(insp_mi_data) * fd->mi_rows *
24                                            fd->mi_cols);
25   if (!fd->mi_grid) {
26     fprintf(stderr, "Error allocating inspection data\n");
27     abort();
28   }
29 }
30 
ifd_init(insp_frame_data * fd,int frame_width,int frame_height)31 void ifd_init(insp_frame_data *fd, int frame_width, int frame_height) {
32   int mi_cols = ALIGN_POWER_OF_TWO(frame_width, 3) >> MI_SIZE_LOG2;
33   int mi_rows = ALIGN_POWER_OF_TWO(frame_height, 3) >> MI_SIZE_LOG2;
34   ifd_init_mi_rc(fd, mi_cols, mi_rows);
35 }
36 
ifd_clear(insp_frame_data * fd)37 void ifd_clear(insp_frame_data *fd) {
38   aom_free(fd->mi_grid);
39   fd->mi_grid = NULL;
40 }
41 
42 /* TODO(negge) This function may be called by more than one thread when using
43                a multi-threaded decoder and this may cause a data race. */
ifd_inspect(insp_frame_data * fd,void * decoder,int skip_not_transform)44 int ifd_inspect(insp_frame_data *fd, void *decoder, int skip_not_transform) {
45   struct AV1Decoder *pbi = (struct AV1Decoder *)decoder;
46   AV1_COMMON *const cm = &pbi->common;
47   const CommonModeInfoParams *const mi_params = &cm->mi_params;
48   const CommonQuantParams *quant_params = &cm->quant_params;
49 
50   if (fd->mi_rows != mi_params->mi_rows || fd->mi_cols != mi_params->mi_cols) {
51     ifd_clear(fd);
52     ifd_init_mi_rc(fd, mi_params->mi_rows, mi_params->mi_cols);
53   }
54   fd->show_existing_frame = cm->show_existing_frame;
55   fd->frame_number = cm->current_frame.frame_number;
56   fd->show_frame = cm->show_frame;
57   fd->frame_type = cm->current_frame.frame_type;
58   fd->base_qindex = quant_params->base_qindex;
59   // Set width and height of the first tile until generic support can be added
60   TileInfo tile_info;
61   av1_tile_set_row(&tile_info, cm, 0);
62   av1_tile_set_col(&tile_info, cm, 0);
63   fd->tile_mi_cols = tile_info.mi_col_end - tile_info.mi_col_start;
64   fd->tile_mi_rows = tile_info.mi_row_end - tile_info.mi_row_start;
65   fd->delta_q_present_flag = cm->delta_q_info.delta_q_present_flag;
66   fd->delta_q_res = cm->delta_q_info.delta_q_res;
67 #if CONFIG_ACCOUNTING
68   fd->accounting = &pbi->accounting;
69 #endif
70   // TODO(negge): copy per frame CDEF data
71   int i, j;
72   for (i = 0; i < MAX_SEGMENTS; i++) {
73     for (j = 0; j < 2; j++) {
74       fd->y_dequant[i][j] = quant_params->y_dequant_QTX[i][j];
75       fd->u_dequant[i][j] = quant_params->u_dequant_QTX[i][j];
76       fd->v_dequant[i][j] = quant_params->v_dequant_QTX[i][j];
77     }
78   }
79   for (j = 0; j < mi_params->mi_rows; j++) {
80     for (i = 0; i < mi_params->mi_cols; i++) {
81       const MB_MODE_INFO *mbmi =
82           mi_params->mi_grid_base[j * mi_params->mi_stride + i];
83       insp_mi_data *mi = &fd->mi_grid[j * mi_params->mi_cols + i];
84       // Segment
85       mi->segment_id = mbmi->segment_id;
86       // Motion Vectors
87       mi->mv[0].row = mbmi->mv[0].as_mv.row;
88       mi->mv[0].col = mbmi->mv[0].as_mv.col;
89       mi->mv[1].row = mbmi->mv[1].as_mv.row;
90       mi->mv[1].col = mbmi->mv[1].as_mv.col;
91       // Reference Frames
92       mi->ref_frame[0] = mbmi->ref_frame[0];
93       mi->ref_frame[1] = mbmi->ref_frame[1];
94       // Prediction Mode
95       mi->mode = mbmi->mode;
96       mi->intrabc = (int16_t)mbmi->use_intrabc;
97       mi->palette = (int16_t)mbmi->palette_mode_info.palette_size[0];
98       mi->uv_palette = (int16_t)mbmi->palette_mode_info.palette_size[1];
99       // Prediction Mode for Chromatic planes
100       if (mi->mode < INTRA_MODES) {
101         mi->uv_mode = mbmi->uv_mode;
102       } else {
103         mi->uv_mode = UV_MODE_INVALID;
104       }
105 
106       mi->motion_mode = mbmi->motion_mode;
107       mi->compound_type = mbmi->interinter_comp.type;
108 
109       // Block Size
110       mi->bsize = mbmi->bsize;
111       // Skip Flag
112       mi->skip = mbmi->skip_txfm;
113       mi->filter[0] = av1_extract_interp_filter(mbmi->interp_filters, 0);
114       mi->filter[1] = av1_extract_interp_filter(mbmi->interp_filters, 1);
115       mi->dual_filter_type = mi->filter[0] * 3 + mi->filter[1];
116 
117       // Transform
118       // TODO(anyone): extract tx type info from mbmi->txk_type[].
119 
120       const BLOCK_SIZE bsize = mbmi->bsize;
121       const int c = i % mi_size_wide[bsize];
122       const int r = j % mi_size_high[bsize];
123       if (is_inter_block(mbmi) || is_intrabc_block(mbmi))
124         mi->tx_size = mbmi->inter_tx_size[av1_get_txb_size_index(bsize, r, c)];
125       else
126         mi->tx_size = mbmi->tx_size;
127 
128       if (skip_not_transform && mi->skip) mi->tx_size = -1;
129 
130       if (mi->skip) {
131         const int tx_type_row = j - j % tx_size_high_unit[mi->tx_size];
132         const int tx_type_col = i - i % tx_size_wide_unit[mi->tx_size];
133         const int tx_type_map_idx =
134             tx_type_row * mi_params->mi_stride + tx_type_col;
135         mi->tx_type = mi_params->tx_type_map[tx_type_map_idx];
136       } else {
137         mi->tx_type = 0;
138       }
139 
140       if (skip_not_transform &&
141           (mi->skip || mbmi->tx_skip[av1_get_txk_type_index(bsize, r, c)]))
142         mi->tx_type = -1;
143 
144       mi->cdef_level = cm->cdef_info.cdef_strengths[mbmi->cdef_strength] /
145                        CDEF_SEC_STRENGTHS;
146       mi->cdef_strength = cm->cdef_info.cdef_strengths[mbmi->cdef_strength] %
147                           CDEF_SEC_STRENGTHS;
148 
149       mi->cdef_strength += mi->cdef_strength == 3;
150       if (mbmi->uv_mode == UV_CFL_PRED) {
151         mi->cfl_alpha_idx = mbmi->cfl_alpha_idx;
152         mi->cfl_alpha_sign = mbmi->cfl_alpha_signs;
153       } else {
154         mi->cfl_alpha_idx = 0;
155         mi->cfl_alpha_sign = 0;
156       }
157       // delta_q
158       mi->current_qindex = mbmi->current_qindex;
159     }
160   }
161   return 1;
162 }
163