FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h26x/h2656_sao_template.c
Date: 2025-01-20 09:27:23
Exec Total Coverage
Lines: 112 122 91.8%
Functions: 7 12 58.3%
Branches: 116 122 95.1%
Line Branch Exec Source
1 /*
2 * HEVC/VVC SAO template
3 *
4 * Copyright (C) 2024 Nuo Mi
5 * Copyright (C) 2012 - 2013 Guillaume Martres
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 10300 static void FUNC(sao_band_filter)(uint8_t *_dst, const uint8_t *_src,
25 ptrdiff_t stride_dst, ptrdiff_t stride_src,
26 const int16_t *sao_offset_val, int sao_left_class,
27 int width, int height)
28 {
29 10300 pixel *dst = (pixel *)_dst;
30 10300 const pixel *src = (const pixel *)_src;
31 10300 int offset_table[32] = { 0 };
32 int k, y, x;
33 10300 int shift = BIT_DEPTH - 5;
34
35 10300 stride_dst /= sizeof(pixel);
36 10300 stride_src /= sizeof(pixel);
37
38
2/2
✓ Branch 0 taken 20600 times.
✓ Branch 1 taken 5150 times.
 51500 for (k = 0; k < 4; k++)
39 41200 offset_table[(k + sao_left_class) & 31] = sao_offset_val[k + 1];
40
2/2
✓ Branch 0 taken 579096 times.
✓ Branch 1 taken 5150 times.
 1168492 for (y = 0; y < height; y++) {
41
2/2
✓ Branch 0 taken 71281280 times.
✓ Branch 1 taken 579096 times.
 143720752 for (x = 0; x < width; x++)
42 142562560 dst[x] = av_clip_pixel(src[x] + offset_table[(src[x] >> shift) & 31]);
43 1158192 dst += stride_dst;
44 1158192 src += stride_src;
45 }
46 10300 }
47
48 #define CMP(a, b) (((a) > (b)) - ((a) < (b)))
49
50 18802 static void FUNC(sao_edge_filter)(uint8_t *_dst, const uint8_t *_src, ptrdiff_t stride_dst, const int16_t *sao_offset_val,
51 int eo, int width, int height) {
52
53 static const uint8_t edge_idx[] = { 1, 2, 0, 3, 4 };
54 static const int8_t pos[4][2][2] = {
55 { { -1, 0 }, { 1, 0 } }, // horizontal
56 { { 0, -1 }, { 0, 1 } }, // vertical
57 { { -1, -1 }, { 1, 1 } }, // 45 degree
58 { { 1, -1 }, { -1, 1 } }, // 135 degree
59 };
60 18802 pixel *dst = (pixel *)_dst;
61 18802 const pixel *src = (const pixel *)_src;
62 int a_stride, b_stride;
63 int x, y;
64 18802 ptrdiff_t stride_src = (2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE) / sizeof(pixel);
65 18802 stride_dst /= sizeof(pixel);
66
67 18802 a_stride = pos[eo][0][0] + pos[eo][0][1] * stride_src;
68 18802 b_stride = pos[eo][1][0] + pos[eo][1][1] * stride_src;
69
2/2
✓ Branch 0 taken 915600 times.
✓ Branch 1 taken 9401 times.
 1850002 for (y = 0; y < height; y++) {
70
2/2
✓ Branch 0 taken 99688832 times.
✓ Branch 1 taken 915600 times.
 201208864 for (x = 0; x < width; x++) {
71 199377664 int diff0 = CMP(src[x], src[x + a_stride]);
72 199377664 int diff1 = CMP(src[x], src[x + b_stride]);
73 199377664 int offset_val = edge_idx[2 + diff0 + diff1];
74 199377664 dst[x] = av_clip_pixel(src[x] + sao_offset_val[offset_val]);
75 }
76 1831200 src += stride_src;
77 1831200 dst += stride_dst;
78 }
79 18802 }
80
81 338 static void FUNC(sao_edge_restore_0)(uint8_t *_dst, const uint8_t *_src,
82 ptrdiff_t stride_dst, ptrdiff_t stride_src, const SAOParams *sao,
83 const int *borders, int _width, int _height,
84 int c_idx, const uint8_t *vert_edge,
85 const uint8_t *horiz_edge, const uint8_t *diag_edge)
86 {
87 int x, y;
88 338 pixel *dst = (pixel *)_dst;
89 338 const pixel *src = (const pixel *)_src;
90 338 const int16_t *sao_offset_val = sao->offset_val[c_idx];
91 338 int sao_eo_class = sao->eo_class[c_idx];
92 338 int init_x = 0, width = _width, height = _height;
93
94 338 stride_dst /= sizeof(pixel);
95 338 stride_src /= sizeof(pixel);
96
97
2/2
✓ Branch 0 taken 141 times.
✓ Branch 1 taken 28 times.
 338 if (sao_eo_class != SAO_EO_VERT) {
98
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 141 times.
 282 if (borders[0]) {
99 ✗ int offset_val = sao_offset_val[0];
100 ✗ for (y = 0; y < height; y++) {
101 ✗ dst[y * stride_dst] = av_clip_pixel(src[y * stride_src] + offset_val);
102 }
103 ✗ init_x = 1;
104 }
105
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 137 times.
 282 if (borders[2]) {
106 8 int offset_val = sao_offset_val[0];
107 8 int offset = width - 1;
108
2/2
✓ Branch 0 taken 512 times.
✓ Branch 1 taken 4 times.
 1032 for (x = 0; x < height; x++) {
109 1024 dst[x * stride_dst + offset] = av_clip_pixel(src[x * stride_src + offset] + offset_val);
110 }
111 8 width--;
112 }
113 }
114
2/2
✓ Branch 0 taken 141 times.
✓ Branch 1 taken 28 times.
 338 if (sao_eo_class != SAO_EO_HORIZ) {
115
2/2
✓ Branch 0 taken 26 times.
✓ Branch 1 taken 115 times.
 282 if (borders[1]) {
116 52 int offset_val = sao_offset_val[0];
117
2/2
✓ Branch 0 taken 3328 times.
✓ Branch 1 taken 26 times.
 6708 for (x = init_x; x < width; x++)
118 6656 dst[x] = av_clip_pixel(src[x] + offset_val);
119 }
120
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 141 times.
 282 if (borders[3]) {
121 ✗ int offset_val = sao_offset_val[0];
122 ✗ ptrdiff_t y_stride_dst = stride_dst * (height - 1);
123 ✗ ptrdiff_t y_stride_src = stride_src * (height - 1);
124 ✗ for (x = init_x; x < width; x++)
125 ✗ dst[x + y_stride_dst] = av_clip_pixel(src[x + y_stride_src] + offset_val);
126 ✗ height--;
127 }
128 }
129 338 }
130
131 18464 static void FUNC(sao_edge_restore_1)(uint8_t *_dst, const uint8_t *_src,
132 ptrdiff_t stride_dst, ptrdiff_t stride_src, const SAOParams *sao,
133 const int *borders, int _width, int _height,
134 int c_idx, const uint8_t *vert_edge,
135 const uint8_t *horiz_edge, const uint8_t *diag_edge)
136 {
137 int x, y;
138 18464 pixel *dst = (pixel *)_dst;
139 18464 const pixel *src = (const pixel *)_src;
140 18464 const int16_t *sao_offset_val = sao->offset_val[c_idx];
141 18464 int sao_eo_class = sao->eo_class[c_idx];
142 18464 int init_x = 0, init_y = 0, width = _width, height = _height;
143
144 18464 stride_dst /= sizeof(pixel);
145 18464 stride_src /= sizeof(pixel);
146
147
2/2
✓ Branch 0 taken 6702 times.
✓ Branch 1 taken 2530 times.
 18464 if (sao_eo_class != SAO_EO_VERT) {
148
2/2
✓ Branch 0 taken 686 times.
✓ Branch 1 taken 6016 times.
 13404 if (borders[0]) {
149 1372 int offset_val = sao_offset_val[0];
150
2/2
✓ Branch 0 taken 66776 times.
✓ Branch 1 taken 686 times.
 134924 for (y = 0; y < height; y++) {
151 133552 dst[y * stride_dst] = av_clip_pixel(src[y * stride_src] + offset_val);
152 }
153 1372 init_x = 1;
154 }
155
2/2
✓ Branch 0 taken 635 times.
✓ Branch 1 taken 6067 times.
 13404 if (borders[2]) {
156 1270 int offset_val = sao_offset_val[0];
157 1270 int offset = width - 1;
158
2/2
✓ Branch 0 taken 59952 times.
✓ Branch 1 taken 635 times.
 121174 for (x = 0; x < height; x++) {
159 119904 dst[x * stride_dst + offset] = av_clip_pixel(src[x * stride_src + offset] + offset_val);
160 }
161 1270 width--;
162 }
163 }
164
2/2
✓ Branch 0 taken 7540 times.
✓ Branch 1 taken 1692 times.
 18464 if (sao_eo_class != SAO_EO_HORIZ) {
165
2/2
✓ Branch 0 taken 1311 times.
✓ Branch 1 taken 6229 times.
 15080 if (borders[1]) {
166 2622 int offset_val = sao_offset_val[0];
167
2/2
✓ Branch 0 taken 121990 times.
✓ Branch 1 taken 1311 times.
 246602 for (x = init_x; x < width; x++)
168 243980 dst[x] = av_clip_pixel(src[x] + offset_val);
169 2622 init_y = 1;
170 }
171
2/2
✓ Branch 0 taken 1387 times.
✓ Branch 1 taken 6153 times.
 15080 if (borders[3]) {
172 2774 int offset_val = sao_offset_val[0];
173 2774 ptrdiff_t y_stride_dst = stride_dst * (height - 1);
174 2774 ptrdiff_t y_stride_src = stride_src * (height - 1);
175
2/2
✓ Branch 0 taken 131355 times.
✓ Branch 1 taken 1387 times.
 265484 for (x = init_x; x < width; x++)
176 262710 dst[x + y_stride_dst] = av_clip_pixel(src[x + y_stride_src] + offset_val);
177 2774 height--;
178 }
179 }
180
181 {
182
8/8
✓ Branch 0 taken 8699 times.
✓ Branch 1 taken 533 times.
✓ Branch 2 taken 1762 times.
✓ Branch 3 taken 6937 times.
✓ Branch 4 taken 1578 times.
✓ Branch 5 taken 184 times.
✓ Branch 6 taken 1335 times.
✓ Branch 7 taken 243 times.
 18464 int save_upper_left = !diag_edge[0] && sao_eo_class == SAO_EO_135D && !borders[0] && !borders[1];
183
8/8
✓ Branch 0 taken 8632 times.
✓ Branch 1 taken 600 times.
✓ Branch 2 taken 2958 times.
✓ Branch 3 taken 5674 times.
✓ Branch 4 taken 2394 times.
✓ Branch 5 taken 564 times.
✓ Branch 6 taken 2191 times.
✓ Branch 7 taken 203 times.
 18464 int save_upper_right = !diag_edge[1] && sao_eo_class == SAO_EO_45D && !borders[1] && !borders[2];
184
8/8
✓ Branch 0 taken 8539 times.
✓ Branch 1 taken 693 times.
✓ Branch 2 taken 1745 times.
✓ Branch 3 taken 6794 times.
✓ Branch 4 taken 1560 times.
✓ Branch 5 taken 185 times.
✓ Branch 6 taken 1232 times.
✓ Branch 7 taken 328 times.
 18464 int save_lower_right = !diag_edge[2] && sao_eo_class == SAO_EO_135D && !borders[2] && !borders[3];
185
8/8
✓ Branch 0 taken 8564 times.
✓ Branch 1 taken 668 times.
✓ Branch 2 taken 2962 times.
✓ Branch 3 taken 5602 times.
✓ Branch 4 taken 2656 times.
✓ Branch 5 taken 306 times.
✓ Branch 6 taken 2187 times.
✓ Branch 7 taken 469 times.
 18464 int save_lower_left = !diag_edge[3] && sao_eo_class == SAO_EO_45D && !borders[0] && !borders[3];
186
187 // Restore pixels that can't be modified
188
4/4
✓ Branch 0 taken 388 times.
✓ Branch 1 taken 8844 times.
✓ Branch 2 taken 282 times.
✓ Branch 3 taken 106 times.
 18464 if(vert_edge[0] && sao_eo_class != SAO_EO_VERT) {
189
2/2
✓ Branch 0 taken 25267 times.
✓ Branch 1 taken 282 times.
 51098 for(y = init_y+save_upper_left; y< height-save_lower_left; y++)
190 50534 dst[y*stride_dst] = src[y*stride_src];
191 }
192
4/4
✓ Branch 0 taken 450 times.
✓ Branch 1 taken 8782 times.
✓ Branch 2 taken 331 times.
✓ Branch 3 taken 119 times.
 18464 if(vert_edge[1] && sao_eo_class != SAO_EO_VERT) {
193
2/2
✓ Branch 0 taken 30054 times.
✓ Branch 1 taken 331 times.
 60770 for(y = init_y+save_upper_right; y< height-save_lower_right; y++)
194 60108 dst[y*stride_dst+width-1] = src[y*stride_src+width-1];
195 }
196
197
4/4
✓ Branch 0 taken 416 times.
✓ Branch 1 taken 8816 times.
✓ Branch 2 taken 283 times.
✓ Branch 3 taken 133 times.
 18464 if(horiz_edge[0] && sao_eo_class != SAO_EO_HORIZ) {
198
2/2
✓ Branch 0 taken 23768 times.
✓ Branch 1 taken 283 times.
 48102 for(x = init_x+save_upper_left; x < width-save_upper_right; x++)
199 47536 dst[x] = src[x];
200 }
201
4/4
✓ Branch 0 taken 548 times.
✓ Branch 1 taken 8684 times.
✓ Branch 2 taken 399 times.
✓ Branch 3 taken 149 times.
 18464 if(horiz_edge[1] && sao_eo_class != SAO_EO_HORIZ) {
202
2/2
✓ Branch 0 taken 34996 times.
✓ Branch 1 taken 399 times.
 70790 for(x = init_x+save_lower_left; x < width-save_lower_right; x++)
203 69992 dst[(height-1)*stride_dst+x] = src[(height-1)*stride_src+x];
204 }
205
4/4
✓ Branch 0 taken 533 times.
✓ Branch 1 taken 8699 times.
✓ Branch 2 taken 115 times.
✓ Branch 3 taken 418 times.
 18464 if(diag_edge[0] && sao_eo_class == SAO_EO_135D)
206 230 dst[0] = src[0];
207
4/4
✓ Branch 0 taken 600 times.
✓ Branch 1 taken 8632 times.
✓ Branch 2 taken 175 times.
✓ Branch 3 taken 425 times.
 18464 if(diag_edge[1] && sao_eo_class == SAO_EO_45D)
208 350 dst[width-1] = src[width-1];
209
4/4
✓ Branch 0 taken 693 times.
✓ Branch 1 taken 8539 times.
✓ Branch 2 taken 132 times.
✓ Branch 3 taken 561 times.
 18464 if(diag_edge[2] && sao_eo_class == SAO_EO_135D)
210 264 dst[stride_dst*(height-1)+width-1] = src[stride_src*(height-1)+width-1];
211
4/4
✓ Branch 0 taken 668 times.
✓ Branch 1 taken 8564 times.
✓ Branch 2 taken 171 times.
✓ Branch 3 taken 497 times.
 18464 if(diag_edge[3] && sao_eo_class == SAO_EO_45D)
212 342 dst[stride_dst*(height-1)] = src[stride_src*(height-1)];
213
214 }
215 18464 }
216
217 #undef CMP
218