FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavutil/tests/eval.c
Date: 2025-10-25 20:16:37
Exec Total Coverage
Lines: 17 25 68.0%
Functions: 1 1 100.0%
Branches: 9 28 32.1%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (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 GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "libavutil/timer.h"
20
21 #include <math.h>
22 #include <stdio.h>
23 #include <string.h>
24
25 #include "libavutil/libm.h"
26 #include "libavutil/eval.h"
27
28 static const double const_values[] = {
29 M_PI,
30 M_E,
31 0
32 };
33
34 static const char *const const_names[] = {
35 "PI",
36 "E",
37 0
38 };
39
40 1 int main(int argc, char **argv)
41 {
42 int i;
43 double d;
44 const char *const *expr;
45 static const char *const exprs[] = {
46 "",
47 "1;2",
48 "-20",
49 "-PI",
50 "+PI",
51 "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
52 "80G/80Gi",
53 "1k",
54 "1Gi",
55 "1gi",
56 "1GiFoo",
57 "1k+1k",
58 "1Gi*3foo",
59 "foo",
60 "foo(",
61 "foo()",
62 "foo)",
63 "sin",
64 "sin(",
65 "sin()",
66 "sin)",
67 "sin 10",
68 "sin(1,2,3)",
69 "sin(1 )",
70 "1",
71 "1foo",
72 "bar + PI + E + 100f*2 + foo",
73 "13k + 12f - foo(1, 2)",
74 "1gi",
75 "1Gi",
76 "st(0, 123)",
77 "st(1, 123); ld(1)",
78 "lte(0, 1)",
79 "lte(1, 1)",
80 "lte(1, 0)",
81 "lt(0, 1)",
82 "lt(1, 1)",
83 "gt(1, 0)",
84 "gt(2, 7)",
85 "gte(122, 122)",
86 /* compute 1+2+...+N */
87 "st(0, 1); while(lte(ld(0), 100), st(1, ld(1)+ld(0));st(0, ld(0)+1)); ld(1)",
88 /* compute Fib(N) */
89 "st(1, 1); st(2, 2); st(0, 1); while(lte(ld(0),10), st(3, ld(1)+ld(2)); st(1, ld(2)); st(2, ld(3)); st(0, ld(0)+1)); ld(3)",
90 "while(0, 10)",
91 "st(0, 1); while(lte(ld(0),100), st(1, ld(1)+ld(0)); st(0, ld(0)+1))",
92 "isnan(1)",
93 "isnan(NAN)",
94 "isnan(INF)",
95 "isinf(1)",
96 "isinf(NAN)",
97 "isinf(INF)",
98 "floor(NAN)",
99 "floor(123.123)",
100 "floor(-123.123)",
101 "trunc(123.123)",
102 "trunc(-123.123)",
103 "ceil(123.123)",
104 "ceil(-123.123)",
105 "sqrt(1764)",
106 "isnan(sqrt(-1))",
107 "not(1)",
108 "not(NAN)",
109 "not(0)",
110 "6.0206dB",
111 "-3.0103dB",
112 "pow(0,1.23)",
113 "pow(PI,1.23)",
114 "PI^1.23",
115 "pow(-1,1.23)",
116 "if(1, 2)",
117 "if(1, 1, 2)",
118 "if(0, 1, 2)",
119 "ifnot(0, 23)",
120 "ifnot(1, NaN) + if(0, 1)",
121 "ifnot(1, 1, 2)",
122 "ifnot(0, 1, 2)",
123 "taylor(1, 1)",
124 "taylor(eq(mod(ld(1),4),1)-eq(mod(ld(1),4),3), PI/2, 1)",
125 "root(sin(ld(0))-1, 2)",
126 "root(sin(ld(0))+6+sin(ld(0)/12)-log(ld(0)), 100)",
127 "7000000B*random(0)",
128 "squish(2)",
129 "gauss(0.1)",
130 "hypot(4,3)",
131 "gcd(30,55)*print(min(9,1))",
132 "bitor(42, 12)",
133 "bitand(42, 12)",
134 "bitand(NAN, 1)",
135 "between(10, -3, 10)",
136 "between(-4, -2, -1)",
137 "between(1,2)",
138 "clip(0, 2, 1)",
139 "clip(0/0, 1, 2)",
140 "clip(0, 0/0, 1)",
141 NULL
142 };
143 int ret;
144
145
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 94 for (expr = exprs; *expr; expr++) {
146 93 printf("Evaluating '%s'\n", *expr);
147 93 ret = av_expr_parse_and_eval(&d, *expr,
148 const_names, const_values,
149 NULL, NULL, NULL, NULL, NULL, 0, NULL);
150
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 93 if (isnan(d))
151 26 printf("'%s' -> nan\n\n", *expr);
152 else
153 67 printf("'%s' -> %f\n\n", *expr, d);
154
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 93 if (ret < 0)
155 26 printf("av_expr_parse_and_eval failed\n");
156 }
157
158 1 ret = av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
159 const_names, const_values,
160 NULL, NULL, NULL, NULL, NULL, 0, NULL);
161 1 printf("%f == 12.7\n", d);
162
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 1 if (ret < 0)
163 ✗ printf("av_expr_parse_and_eval failed\n");
164 1 ret = av_expr_parse_and_eval(&d, "80G/80Gi",
165 const_names, const_values,
166 NULL, NULL, NULL, NULL, NULL, 0, NULL);
167 1 printf("%f == 0.931322575\n", d);
168
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 1 if (ret < 0)
169 ✗ printf("av_expr_parse_and_eval failed\n");
170
171
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 1 if (argc > 1 && !strcmp(argv[1], "-t")) {
172 ✗ for (i = 0; i < 1050; i++) {
173 ✗ START_TIMER;
174 ✗ ret = av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
175 const_names, const_values,
176 NULL, NULL, NULL, NULL, NULL, 0, NULL);
177 ✗ if (ret < 0)
178 ✗ printf("av_expr_parse_and_eval failed\n");
179 ✗ STOP_TIMER("av_expr_parse_and_eval");
180 }
181 }
182
183 1 return 0;
184 }
185