FFmpeg
libavutil
tests
random_seed.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#define TEST 1
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#include "
libavutil/random_seed.c
"
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#undef printf
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#define N 256
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#define F 2
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#include <stdio.h>
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typedef
uint32_t (*
random_seed_ptr_t
)(void);
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int
main
(
void
)
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{
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int
i
, j, rsf, retry;
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uint32_t seeds[
N
];
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random_seed_ptr_t
random_seed[
F
] = {
av_get_random_seed
,
get_generic_seed
};
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for
(rsf=0; rsf<
F
; ++rsf){
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for
(retry=0; retry<3; retry++){
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for
(
i
=0;
i
<
N
;
i
++){
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seeds[
i
] = random_seed[rsf]();
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for
(j=0; j<
i
; j++)
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if
(seeds[j] == seeds[
i
])
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goto
retry;
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}
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printf
(
"seeds OK\n"
);
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break
;
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retry:;
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}
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if
(retry >= 3) {
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printf
(
"rsf %d: FAIL at %d with %"
PRIX32
"\n"
, rsf, j, seeds[j]);
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return
1;
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}
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}
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return
0;
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}
av_get_random_seed
uint32_t av_get_random_seed(void)
Get a seed to use in conjunction with random functions.
Definition:
random_seed.c:167
main
int main(void)
Definition:
random_seed.c:31
N
#define N
Definition:
random_seed.c:25
printf
printf("static const uint8_t my_array[100] = {\n")
F
#define F
Definition:
random_seed.c:26
i
#define i(width, name, range_min, range_max)
Definition:
cbs_h2645.c:256
random_seed.c
random_seed_ptr_t
uint32_t(* random_seed_ptr_t)(void)
Definition:
random_seed.c:29
get_generic_seed
static uint32_t get_generic_seed(void)
Definition:
random_seed.c:75
Generated on Tue Nov 26 2024 19:22:51 for FFmpeg by
1.8.17