FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/hevc_idct.c
Date: 2026-04-30 18:27:06
Exec Total Coverage
Lines: 59 62 95.2%
Functions: 4 4 100.0%
Branches: 28 52 53.8%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2016 Alexandra Hájková
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include <string.h>
22
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/mem_internal.h"
25
26 #include "libavcodec/hevc/dsp.h"
27
28 #include "checkasm.h"
29
30 #define randomize_buffers(buf, size) \
31 do { \
32 int j; \
33 for (j = 0; j < size; j++) { \
34 int16_t r = rnd(); \
35 AV_WN16A(buf + j, r); \
36 } \
37 } while (0)
38
39 42 static void check_idct(HEVCDSPContext *h, int bit_depth)
40 {
41 int i;
42 42 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
43 42 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
44
45
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 210 for (i = 2; i <= 5; i++) {
46 168 int block_size = 1 << i;
47 168 int size = block_size * block_size;
48 168 int col_limit = block_size;
49 168 declare_func(void, int16_t *coeffs, int col_limit);
50
51
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 57288 randomize_buffers(coeffs0, size);
52 168 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
53
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 168 if (check_func(h->idct[i - 2], "hevc_idct_%dx%d_%d", block_size, block_size, bit_depth)) {
54 28 call_ref(coeffs0, col_limit);
55 28 call_new(coeffs1, col_limit);
56
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 28 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
57 ✗ fail();
58
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 28 bench_new(coeffs1, col_limit);
59 }
60 }
61 42 }
62
63 42 static void check_idct_dc(HEVCDSPContext *h, int bit_depth)
64 {
65 int i;
66 42 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
67 42 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
68
69
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 210 for (i = 2; i <= 5; i++) {
70 168 int block_size = 1 << i;
71 168 int size = block_size * block_size;
72 168 declare_func(void, int16_t *coeffs);
73
74
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 57288 randomize_buffers(coeffs0, size);
75 168 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
76
77
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 168 if (check_func(h->idct_dc[i - 2], "hevc_idct_%dx%d_dc_%d", block_size, block_size, bit_depth)) {
78 30 call_ref(coeffs0);
79 30 call_new(coeffs1);
80
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 30 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
81 ✗ fail();
82
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 30 bench_new(coeffs1);
83 }
84 }
85 42 }
86
87 42 static void check_transform_luma(HEVCDSPContext *h, int bit_depth)
88 {
89 42 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
90 42 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
91
92 42 int block_size = 4;
93 42 int size = block_size * block_size;
94 42 declare_func(void, int16_t *coeffs);
95
96
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 714 randomize_buffers(coeffs0, size);
97 42 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
98
99
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 42 if (check_func(h->transform_4x4_luma, "hevc_transform_luma_4x4_%d", bit_depth)) {
100 3 call_ref(coeffs0);
101 3 call_new(coeffs1);
102
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 3 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
103 ✗ fail();
104
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 3 bench_new(coeffs1);
105 }
106 42 }
107
108 14 void checkasm_check_hevc_idct(void)
109 {
110 int bit_depth;
111
112
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 56 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
113 HEVCDSPContext h;
114
115 42 ff_hevc_dsp_init(&h, bit_depth);
116 42 check_idct_dc(&h, bit_depth);
117 }
118 14 report("idct_dc");
119
120
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 56 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
121 HEVCDSPContext h;
122
123 42 ff_hevc_dsp_init(&h, bit_depth);
124 42 check_idct(&h, bit_depth);
125 }
126 14 report("idct");
127
128
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 56 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
129 HEVCDSPContext h;
130
131 42 ff_hevc_dsp_init(&h, bit_depth);
132 42 check_transform_luma(&h, bit_depth);
133 }
134 14 report("transform_luma");
135 14 }
136