FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/vf_nlmeans.c
Date: 2025-10-24 21:16:34
Exec Total Coverage
Lines: 50 51 98.0%
Functions: 1 1 100.0%
Branches: 28 46 60.9%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2018 Clément Bœsch <u pkh me>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "checkasm.h"
22 #include "libavfilter/vf_nlmeans_init.h"
23 #include "libavutil/avassert.h"
24 #include "libavutil/mem.h"
25
26 #define randomize_buffer(buf, size) do { \
27 int i; \
28 for (i = 0; i < size / 4; i++) \
29 ((uint32_t *)buf)[i] = rnd(); \
30 } while (0)
31
32 13 void checkasm_check_nlmeans(void)
33 {
34 13 NLMeansDSPContext dsp = {0};
35
36 13 const int w = 123; // source width
37 13 const int h = 45; // source height
38 13 const int p = 3; // patch half size
39 13 const int r = 2; // research window half size
40
41 13 ff_nlmeans_init(&dsp);
42
43 /* See the filter's code for the explanations on the variables */
44
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 13 if (check_func(dsp.compute_safe_ssd_integral_image, "ssd_integral_image")) {
45 int offx, offy;
46 1 const int e = p + r;
47 1 const int ii_w = w + e*2;
48 1 const int ii_h = h + e*2;
49 1 const int ii_lz_32 = FFALIGN(ii_w + 1, 4);
50 1 uint32_t *ii_orig_ref = av_calloc(ii_h + 1, ii_lz_32 * sizeof(*ii_orig_ref));
51 1 uint32_t *ii_ref = ii_orig_ref + ii_lz_32 + 1;
52 1 uint32_t *ii_orig_new = av_calloc(ii_h + 1, ii_lz_32 * sizeof(*ii_orig_new));
53 1 uint32_t *ii_new = ii_orig_new + ii_lz_32 + 1;
54 1 const int src_lz = FFALIGN(w, 16);
55 1 uint8_t *src = av_calloc(h, src_lz);
56
57 1 declare_func(void, uint32_t *dst, ptrdiff_t dst_linesize_32,
58 const uint8_t *s1, ptrdiff_t linesize1,
59 const uint8_t *s2, ptrdiff_t linesize2,
60 int w, int h);
61
62
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 1441 randomize_buffer(src, h * src_lz);
63
64
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 6 for (offy = -r; offy <= r; offy++) {
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 30 for (offx = -r; offx <= r; offx++) {
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 25 if (offx || offy) {
67 24 const int s1x = e;
68 24 const int s1y = e;
69 24 const int s2x = e + offx;
70 24 const int s2y = e + offy;
71 24 const int startx_safe = FFMAX(s1x, s2x);
72 24 const int starty_safe = FFMAX(s1y, s2y);
73
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 24 const int u_endx_safe = FFMIN(s1x + w, s2x + w);
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 24 const int endy_safe = FFMIN(s1y + h, s2y + h);
75 24 const int safe_pw = (u_endx_safe - startx_safe) & ~0xf;
76 24 const int safe_ph = endy_safe - starty_safe;
77
78
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 24 av_assert0(safe_pw && safe_ph);
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 24 av_assert0(startx_safe - s1x >= 0); av_assert0(startx_safe - s1x < w);
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 24 av_assert0(starty_safe - s1y >= 0); av_assert0(starty_safe - s1y < h);
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 24 av_assert0(startx_safe - s2x >= 0); av_assert0(startx_safe - s2x < w);
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 24 av_assert0(starty_safe - s2y >= 0); av_assert0(starty_safe - s2y < h);
83
84 24 memset(ii_ref, 0, (ii_lz_32 * ii_h - 1) * sizeof(*ii_ref));
85 24 memset(ii_new, 0, (ii_lz_32 * ii_h - 1) * sizeof(*ii_new));
86
87 24 call_ref(ii_ref + starty_safe*ii_lz_32 + startx_safe, ii_lz_32,
88 src + (starty_safe - s1y) * src_lz + (startx_safe - s1x), src_lz,
89 src + (starty_safe - s2y) * src_lz + (startx_safe - s2x), src_lz,
90 safe_pw, safe_ph);
91 24 call_new(ii_new + starty_safe*ii_lz_32 + startx_safe, ii_lz_32,
92 src + (starty_safe - s1y) * src_lz + (startx_safe - s1x), src_lz,
93 src + (starty_safe - s2y) * src_lz + (startx_safe - s2x), src_lz,
94 safe_pw, safe_ph);
95
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 24 if (memcmp(ii_ref, ii_new, (ii_lz_32 * ii_h - 1) * sizeof(*ii_ref)))
97 ✗ fail();
98
99 24 memset(ii_new, 0, (ii_lz_32 * ii_h - 1) * sizeof(*ii_new));
100
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 24 bench_new(ii_new + starty_safe*ii_lz_32 + startx_safe, ii_lz_32,
101 src + (starty_safe - s1y) * src_lz + (startx_safe - s1x), src_lz,
102 src + (starty_safe - s2y) * src_lz + (startx_safe - s2x), src_lz,
103 safe_pw, safe_ph);
104 }
105 }
106 }
107
108 1 av_freep(&ii_orig_ref);
109 1 av_freep(&ii_orig_new);
110 1 av_freep(&src);
111 }
112
113 13 report("dsp");
114 13 }
115