FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/lls.c
Date: 2026-09-21 15:08:56
Exec Total Coverage
Lines: 37 42 88.1%
Functions: 3 3 100.0%
Branches: 27 66 40.9%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #include <float.h>
20 #include <stdio.h>
21 #include <string.h>
22
23 #include "libavutil/lls.h"
24 #include "checkasm.h"
25
26 12 static void test_update(LLSModel *lls, const double *var)
27 {
28 double refcovar[MAX_VARS][MAX_VARS];
29 12 declare_func(void, LLSModel *, const double *);
30
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 12 call_ref(lls, var);
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 396 for (size_t i = 0; i < MAX_VARS; i++)
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 12672 for (size_t j = 0; j < MAX_VARS; j++)
35 12288 refcovar[i][j] = lls->covariance[i][j];
36
37 12 memset(lls->covariance, 0, sizeof (lls->covariance));
38 12 call_new(lls, var);
39
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 220 for (size_t i = 0; i < lls->indep_count; i++)
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 2776 for (size_t j = i; j < lls->indep_count; j++) {
42
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 2568 double eps = FFMAX(2 * DBL_EPSILON * fabs(refcovar[i][j]),
43 8 * DBL_EPSILON);
44
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 2568 if (!double_near_abs_eps(refcovar[i][j], lls->covariance[i][j],
45 eps)) {
46 ✗ fprintf(stderr, "%zu, %zu: %- .12f - %- .12f = % .12g\n", i, j,
47 refcovar[i][j], lls->covariance[i][j],
48 ✗ refcovar[i][j] - lls->covariance[i][j]);
49 ✗ fail();
50 }
51 }
52
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 12 bench_new(lls, var);
54 12 }
55
56 12 static void test_evaluate(LLSModel *lls, const double *param, int order)
57 {
58 double refprod, newprod, eps;
59 12 declare_func_float(double, LLSModel *, const double *, int);
60
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 12 refprod = call_ref(lls, param, order);
62 12 newprod = call_new(lls, param, order);
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 12 eps = FFMAX(2 * DBL_EPSILON * fabs(refprod), 0.2);
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 12 if (!double_near_abs_eps(refprod, newprod, eps)) {
67 ✗ fprintf(stderr, "%- .12f - %- .12f = % .12g\n",
68 refprod, newprod, refprod - newprod);
69 ✗ fail();
70 }
71
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 12 if (order == lls->indep_count)
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 6 bench_new(lls, param, order);
74 12 }
75
76 14 void checkasm_check_lls(void)
77 {
78 static const unsigned char counts[] = { 8, 12, MAX_VARS, };
79
80
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 56 for (size_t i = 0; i < FF_ARRAY_ELEMS(counts); i++) {
81 42 LOCAL_ALIGNED_32(double, var, [MAX_VARS_ALIGN]);
82 42 LOCAL_ALIGNED_32(double, param, [FFALIGN(MAX_VARS+2,4)]);
83 LLSModel lls;
84
85 42 avpriv_init_lls(&lls, counts[i]);
86 42 randomize_stddev_dbl(var, MAX_VARS_ALIGN, 10.0);
87 42 randomize_stddev_dbl(param, MAX_VARS_ALIGN, 10.0);
88
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 42 if (check_func(lls.update_lls, "update_lls_%d", counts[i]))
90 12 test_update(&lls, var);
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 126 for (size_t j = 0; j <= i; j++)
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 84 if (check_func(lls.evaluate_lls, "evaluate_lls_%d_%d", counts[i],
93 counts[j]))
94 12 test_evaluate(&lls, param + 1, counts[j]);
95 }
96 14 report("lls");
97 14 }
98