2 * Copyright (c) 2012 Nicolas George
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "libavutil/bprint.c"
25 static void bprint_pascal(AVBPrint *b, unsigned size)
30 av_assert0(size < FF_ARRAY_ELEMS(p));
33 av_bprintf(b, "%8d\n", 1);
34 for (i = 1; i <= size; i++) {
36 for (j = i - 1; j > 0; j--)
37 p[j] = p[j] + p[j - 1];
38 for (j = 0; j <= i; j++)
39 av_bprintf(b, "%8d", p[j]);
48 struct tm testtime = { .tm_year = 100, .tm_mon = 11, .tm_mday = 20 };
50 av_bprint_init(&b, 0, -1);
52 printf("Short text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
53 printf("%s\n", b.str);
54 av_bprint_finalize(&b, NULL);
56 av_bprint_init(&b, 0, -1);
57 bprint_pascal(&b, 25);
58 printf("Long text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
59 av_bprint_finalize(&b, NULL);
61 av_bprint_init(&b, 0, 2048);
62 bprint_pascal(&b, 25);
63 printf("Long text in limited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
64 av_bprint_finalize(&b, NULL);
66 av_bprint_init(&b, 0, 1);
68 printf("Short text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
70 av_bprint_init(&b, 0, 1);
71 bprint_pascal(&b, 25);
72 printf("Long text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str)/8*8, b.len);
73 /* Note that the size of the automatic buffer is arch-dependent. */
75 av_bprint_init(&b, 0, 0);
76 bprint_pascal(&b, 25);
77 printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
79 av_bprint_init_for_buffer(&b, buf, sizeof(buf));
80 bprint_pascal(&b, 25);
81 printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(buf), b.len);
83 av_bprint_init(&b, 0, -1);
84 av_bprint_strftime(&b, "%Y-%m-%d", &testtime);
85 printf("strftime full: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str);
86 av_bprint_finalize(&b, NULL);
88 av_bprint_init(&b, 0, 8);
89 av_bprint_strftime(&b, "%Y-%m-%d", &testtime);
90 printf("strftime truncated: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str);