mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
798845ce7e
This fixes building on MSVC 2010 and 2012 after d12b5b2f13.
Signed-off-by: Martin Storsjö <martin@martin.st>
146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "libm.h"
|
|
#include "timer.h"
|
|
#include "eval.h"
|
|
|
|
static const double const_values[] = {
|
|
M_PI,
|
|
M_E,
|
|
0
|
|
};
|
|
|
|
static const char *const const_names[] = {
|
|
"PI",
|
|
"E",
|
|
0
|
|
};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int i;
|
|
double d;
|
|
const char *const *expr;
|
|
static const char *const exprs[] = {
|
|
"",
|
|
"1;2",
|
|
"-20",
|
|
"-PI",
|
|
"+PI",
|
|
"1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
|
|
"80G/80Gi",
|
|
"1k",
|
|
"1Gi",
|
|
"1gi",
|
|
"1GiFoo",
|
|
"1k+1k",
|
|
"1Gi*3foo",
|
|
"foo",
|
|
"foo(",
|
|
"foo()",
|
|
"foo)",
|
|
"sin",
|
|
"sin(",
|
|
"sin()",
|
|
"sin)",
|
|
"sin 10",
|
|
"sin(1,2,3)",
|
|
"sin(1 )",
|
|
"1",
|
|
"1foo",
|
|
"bar + PI + E + 100f*2 + foo",
|
|
"13k + 12f - foo(1, 2)",
|
|
"1gi",
|
|
"1Gi",
|
|
"st(0, 123)",
|
|
"st(1, 123); ld(1)",
|
|
"lte(0, 1)",
|
|
"lte(1, 1)",
|
|
"lte(1, 0)",
|
|
"lt(0, 1)",
|
|
"lt(1, 1)",
|
|
"gt(1, 0)",
|
|
"gt(2, 7)",
|
|
"gte(122, 122)",
|
|
/* compute 1+2+...+N */
|
|
"st(0, 1); while(lte(ld(0), 100), st(1, ld(1)+ld(0));st(0, ld(0)+1)); ld(1)",
|
|
/* compute Fib(N) */
|
|
"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)",
|
|
"while(0, 10)",
|
|
"st(0, 1); while(lte(ld(0),100), st(1, ld(1)+ld(0)); st(0, ld(0)+1))",
|
|
"isnan(1)",
|
|
"isnan(NAN)",
|
|
"isnan(INF)",
|
|
"isinf(1)",
|
|
"isinf(NAN)",
|
|
"isinf(INF)",
|
|
"floor(NAN)",
|
|
"floor(123.123)",
|
|
"floor(-123.123)",
|
|
"trunc(123.123)",
|
|
"trunc(-123.123)",
|
|
"ceil(123.123)",
|
|
"ceil(-123.123)",
|
|
"sqrt(1764)",
|
|
"isnan(sqrt(-1))",
|
|
"not(1)",
|
|
"not(NAN)",
|
|
"not(0)",
|
|
"6.0206dB",
|
|
"-3.0103dB",
|
|
NULL
|
|
};
|
|
|
|
for (expr = exprs; *expr; expr++) {
|
|
printf("Evaluating '%s'\n", *expr);
|
|
av_expr_parse_and_eval(&d, *expr,
|
|
const_names, const_values,
|
|
NULL, NULL, NULL, NULL, NULL, 0, NULL);
|
|
if (isnan(d))
|
|
printf("'%s' -> nan\n\n", *expr);
|
|
else
|
|
printf("'%s' -> %f\n\n", *expr, d);
|
|
}
|
|
|
|
av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
|
|
const_names, const_values,
|
|
NULL, NULL, NULL, NULL, NULL, 0, NULL);
|
|
printf("%f == 12.7\n", d);
|
|
av_expr_parse_and_eval(&d, "80G/80Gi",
|
|
const_names, const_values,
|
|
NULL, NULL, NULL, NULL, NULL, 0, NULL);
|
|
printf("%f == 0.931322575\n", d);
|
|
|
|
if (argc > 1 && !strcmp(argv[1], "-t")) {
|
|
for (i = 0; i < 1050; i++) {
|
|
START_TIMER;
|
|
av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
|
|
const_names, const_values,
|
|
NULL, NULL, NULL, NULL, NULL, 0, NULL);
|
|
STOP_TIMER("av_expr_parse_and_eval");
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|