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pineappleEA
2021-02-09 04:25:58 +01:00
parent de64eab4b4
commit 3d5a9d908a
7336 changed files with 1773492 additions and 111 deletions
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93
externals/ffmpeg/libavutil/tests/bprint.c vendored Executable file
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/*
* Copyright (c) 2012 Nicolas George
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/bprint.c"
#undef printf
static void bprint_pascal(AVBPrint *b, unsigned size)
{
unsigned i, j;
unsigned p[42];
av_assert0(size < FF_ARRAY_ELEMS(p));
p[0] = 1;
av_bprintf(b, "%8d\n", 1);
for (i = 1; i <= size; i++) {
p[i] = 1;
for (j = i - 1; j > 0; j--)
p[j] = p[j] + p[j - 1];
for (j = 0; j <= i; j++)
av_bprintf(b, "%8d", p[j]);
av_bprintf(b, "\n");
}
}
int main(void)
{
AVBPrint b;
char buf[256];
struct tm testtime = { .tm_year = 100, .tm_mon = 11, .tm_mday = 20 };
av_bprint_init(&b, 0, AV_BPRINT_SIZE_UNLIMITED);
bprint_pascal(&b, 5);
printf("Short text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
printf("%s\n", b.str);
av_bprint_finalize(&b, NULL);
av_bprint_init(&b, 0, AV_BPRINT_SIZE_UNLIMITED);
bprint_pascal(&b, 25);
printf("Long text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
av_bprint_finalize(&b, NULL);
av_bprint_init(&b, 0, 2048);
bprint_pascal(&b, 25);
printf("Long text in limited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
av_bprint_finalize(&b, NULL);
av_bprint_init(&b, 0, AV_BPRINT_SIZE_AUTOMATIC);
bprint_pascal(&b, 5);
printf("Short text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
av_bprint_init(&b, 0, AV_BPRINT_SIZE_AUTOMATIC);
bprint_pascal(&b, 25);
printf("Long text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str)/8*8, b.len);
/* Note that the size of the automatic buffer is arch-dependent. */
av_bprint_init(&b, 0, AV_BPRINT_SIZE_COUNT_ONLY);
bprint_pascal(&b, 25);
printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
av_bprint_init_for_buffer(&b, buf, sizeof(buf));
bprint_pascal(&b, 25);
printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(buf), b.len);
av_bprint_init(&b, 0, AV_BPRINT_SIZE_UNLIMITED);
av_bprint_strftime(&b, "%Y-%m-%d", &testtime);
printf("strftime full: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str);
av_bprint_finalize(&b, NULL);
av_bprint_init(&b, 0, 8);
av_bprint_strftime(&b, "%Y-%m-%d", &testtime);
printf("strftime truncated: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str);
return 0;
}