FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/vvc_alf.c
Date: 2026-04-24 19:58:39
Exec Total Coverage
Lines: 79 81 97.5%
Functions: 4 4 100.0%
Branches: 63 86 73.3%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2023-2024 Nuo Mi <nuomi2021@gmail.com>
3 * Copyright (c) 2023-2024 Wu Jianhua <toqsxw@outlook.com>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 */
21
22 #include <string.h>
23
24 #include "checkasm.h"
25 #include "libavcodec/vvc/ctu.h"
26 #include "libavcodec/vvc/data.h"
27 #include "libavcodec/vvc/dsp.h"
28
29 #include "libavutil/common.h"
30 #include "libavutil/intreadwrite.h"
31 #include "libavutil/mem_internal.h"
32
33 static const uint32_t pixel_mask[3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff };
34
35 #define SIZEOF_PIXEL ((bit_depth + 7) / 8)
36 #define SRC_PIXEL_STRIDE (MAX_CTU_SIZE + 2 * ALF_PADDING_SIZE)
37 #define DST_PIXEL_STRIDE (SRC_PIXEL_STRIDE + 4)
38 #define SRC_BUF_SIZE (SRC_PIXEL_STRIDE * (MAX_CTU_SIZE + 3 * 2) * 2) //+3 * 2 for top and bottom row, *2 for high bit depth
39 #define DST_BUF_SIZE (DST_PIXEL_STRIDE * (MAX_CTU_SIZE + 3 * 2) * 2)
40 #define LUMA_PARAMS_SIZE (MAX_CTU_SIZE * MAX_CTU_SIZE / ALF_BLOCK_SIZE / ALF_BLOCK_SIZE * ALF_NUM_COEFF_LUMA)
41
42 #define randomize_buffers(buf0, buf1, size) \
43 do { \
44 uint32_t mask = pixel_mask[(bit_depth - 8) >> 1]; \
45 int k; \
46 for (k = 0; k < size; k += 4) { \
47 uint32_t r = rnd() & mask; \
48 AV_WN32A(buf0 + k, r); \
49 AV_WN32A(buf1 + k, r); \
50 } \
51 } while (0)
52
53 #define randomize_buffers2(buf, size, filter) \
54 do { \
55 int k; \
56 if (filter) { \
57 for (k = 0; k < size; k++) { \
58 int8_t r = rnd(); \
59 buf[k] = r; \
60 } \
61 } else { \
62 for (k = 0; k < size; k++) { \
63 int r = rnd() % FF_ARRAY_ELEMS(clip_set); \
64 buf[k] = clip_set[r]; \
65 } \
66 } \
67 } while (0)
68
69 15744 static int get_alf_vb_pos(const int h, const int vb_pos_above)
70 {
71
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 15744 if (h == MAX_CTU_SIZE)
72 912 return MAX_CTU_SIZE - vb_pos_above;
73 // If h < MAX_CTU_SIZE and picture virtual boundaries are involved, ALF virtual boundaries can either be within or outside this ALF block.
74
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 14832 return ((rnd() & 1) ? h : MAX_CTU_SIZE) - vb_pos_above;
75 }
76
77 42 static void check_alf_filter(VVCDSPContext *c, const int bit_depth)
78 {
79 42 LOCAL_ALIGNED_32(uint8_t, dst0, [DST_BUF_SIZE]);
80 42 LOCAL_ALIGNED_32(uint8_t, dst1, [DST_BUF_SIZE]);
81 42 LOCAL_ALIGNED_32(uint8_t, src0, [SRC_BUF_SIZE]);
82 42 LOCAL_ALIGNED_32(uint8_t, src1, [SRC_BUF_SIZE]);
83 int16_t filter[LUMA_PARAMS_SIZE];
84 int16_t clip[LUMA_PARAMS_SIZE];
85
86 42 const int16_t clip_set[] = {
87 42 1 << bit_depth, 1 << (bit_depth - 3), 1 << (bit_depth - 5), 1 << (bit_depth - 7)
88 };
89
90 42 ptrdiff_t src_stride = SRC_PIXEL_STRIDE * SIZEOF_PIXEL;
91 42 ptrdiff_t dst_stride = DST_PIXEL_STRIDE * SIZEOF_PIXEL;
92 42 int offset = (3 * SRC_PIXEL_STRIDE + 3) * SIZEOF_PIXEL;
93
94 42 declare_func(void, uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *src, ptrdiff_t src_stride,
95 int width, int height, const int16_t *filter, const int16_t *clip, const int vb_pos);
96
97
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 405258 randomize_buffers(src0, src1, SRC_BUF_SIZE);
98
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 516138 randomize_buffers2(filter, LUMA_PARAMS_SIZE, 1);
99
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 516138 randomize_buffers2(clip, LUMA_PARAMS_SIZE, 0);
100
101
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 1386 for (int h = 4; h <= MAX_CTU_SIZE; h += 4) {
102
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 44352 for (int w = 4; w <= MAX_CTU_SIZE; w += 4) {
103 //Both picture size and virtual boundaries are 8-aligned. For luma, we only need to check 8-aligned sizes.
104
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 43008 if (!(w % 8) && !(h % 8)) {
105
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 10752 if (check_func(c->alf.filter[LUMA], "vvc_alf_filter_luma_%dx%d_%d", w, h, bit_depth)) {
106 1536 const int vb_pos = get_alf_vb_pos(h, ALF_VB_POS_ABOVE_LUMA);
107 1536 memset(dst0, 0, DST_BUF_SIZE);
108 1536 memset(dst1, 0, DST_BUF_SIZE);
109 1536 call_ref(dst0, dst_stride, src0 + offset, src_stride, w, h, filter, clip, vb_pos);
110 1536 call_new(dst1, dst_stride, src1 + offset, src_stride, w, h, filter, clip, vb_pos);
111
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 1536 checkasm_check_pixel(dst0, dst_stride, dst1, dst_stride, w + 1, h + 1, "dst");
112 // Bench only square sizes, and ones with dimensions being a power of two.
113
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 1536 if (w == h && (w & (w - 1)) == 0)
114
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 30 bench_new(dst1, dst_stride, src1 + offset, src_stride, w, h, filter, clip, vb_pos);
115 }
116 }
117 //For chroma, once it exceeds 64, it's not a 4:2:0 format, so we only need to check 8-aligned sizes as well.
118
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 43008 if ((w <= 64 || !(w % 8)) && (h <= 64 || !(h % 8))) {
119
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 24192 if (check_func(c->alf.filter[CHROMA], "vvc_alf_filter_chroma_%dx%d_%d", w, h, bit_depth)) {
120 3456 const int vb_pos = get_alf_vb_pos(h, ALF_VB_POS_ABOVE_CHROMA);
121 3456 memset(dst0, 0, DST_BUF_SIZE);
122 3456 memset(dst1, 0, DST_BUF_SIZE);
123 3456 call_ref(dst0, dst_stride, src0 + offset, src_stride, w, h, filter, clip, vb_pos);
124 3456 call_new(dst1, dst_stride, src1 + offset, src_stride, w, h, filter, clip, vb_pos);
125
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 3456 checkasm_check_pixel(dst0, dst_stride, dst1, dst_stride, w + 1, h + 1, "dst");
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 3456 if (w == h && (w & (w - 1)) == 0)
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 36 bench_new(dst1, dst_stride, src1 + offset, src_stride, w, h, filter, clip, vb_pos);
128 }
129 }
130 }
131 }
132 42 }
133
134 42 static void check_alf_classify(VVCDSPContext *c, const int bit_depth)
135 {
136 42 LOCAL_ALIGNED_32(int, class_idx0, [SRC_BUF_SIZE]);
137 42 LOCAL_ALIGNED_32(int, transpose_idx0, [SRC_BUF_SIZE]);
138 42 LOCAL_ALIGNED_32(int, class_idx1, [SRC_BUF_SIZE]);
139 42 LOCAL_ALIGNED_32(int, transpose_idx1, [SRC_BUF_SIZE]);
140 42 LOCAL_ALIGNED_32(uint8_t, src0, [SRC_BUF_SIZE]);
141 42 LOCAL_ALIGNED_32(uint8_t, src1, [SRC_BUF_SIZE]);
142 42 LOCAL_ALIGNED_32(int32_t, alf_gradient_tmp, [ALF_GRADIENT_SIZE * ALF_GRADIENT_SIZE * ALF_NUM_DIR]);
143
144 42 ptrdiff_t stride = SRC_PIXEL_STRIDE * SIZEOF_PIXEL;
145 42 int offset = (3 * SRC_PIXEL_STRIDE + 3) * SIZEOF_PIXEL;
146
147 42 declare_func(void, int *class_idx, int *transpose_idx,
148 const uint8_t *src, ptrdiff_t src_stride, int width, int height, int vb_pos, int *gradient_tmp);
149
150
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 405258 randomize_buffers(src0, src1, SRC_BUF_SIZE);
151
152 //Both picture size and virtual boundaries are 8-aligned. Classify is luma only, we only need to check 8-aligned sizes.
153
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 714 for (int h = 8; h <= MAX_CTU_SIZE; h += 8) {
154
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 11424 for (int w = 8; w <= MAX_CTU_SIZE; w += 8) {
155 10752 const int id_size = w * h / ALF_BLOCK_SIZE / ALF_BLOCK_SIZE * sizeof(int);
156 10752 const int vb_pos = get_alf_vb_pos(h, ALF_VB_POS_ABOVE_LUMA);
157
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 10752 if (check_func(c->alf.classify, "vvc_alf_classify_%dx%d_%d", w, h, bit_depth)) {
158 1536 memset(class_idx0, 0, id_size);
159 1536 memset(class_idx1, 0, id_size);
160 1536 memset(transpose_idx0, 0, id_size);
161 1536 memset(transpose_idx1, 0, id_size);
162 1536 call_ref(class_idx0, transpose_idx0, src0 + offset, stride, w, h, vb_pos, alf_gradient_tmp);
163
164 1536 call_new(class_idx1, transpose_idx1, src1 + offset, stride, w, h, vb_pos, alf_gradient_tmp);
165
166
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 1536 if (memcmp(class_idx0, class_idx1, id_size))
167 ✗ fail();
168
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 1536 if (memcmp(transpose_idx0, transpose_idx1, id_size))
169 ✗ fail();
170 // Bench only square sizes, and ones with dimensions being a power of two.
171
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 1536 if (w == h && (w & (w - 1)) == 0)
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 30 bench_new(class_idx1, transpose_idx1, src1 + offset, stride, w, h, vb_pos, alf_gradient_tmp);
173 }
174 }
175 }
176 42 }
177
178 14 void checkasm_check_vvc_alf(void)
179 {
180 int bit_depth;
181 VVCDSPContext h;
182
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 56 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
183 42 ff_vvc_dsp_init(&h, bit_depth);
184 42 check_alf_filter(&h, bit_depth);
185 }
186 14 report("alf_filter");
187
188
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 56 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
189 42 ff_vvc_dsp_init(&h, bit_depth);
190 42 check_alf_classify(&h, bit_depth);
191 }
192 14 report("alf_classify");
193 14 }
194