| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2012 Nicolas George | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 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. | ||
| 10 | * | ||
| 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. | ||
| 15 | * | ||
| 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 | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include "libavutil/avassert.h" | ||
| 22 | #include "libavutil/bprint.c" | ||
| 23 | |||
| 24 | 7 | static void bprint_pascal(AVBPrint *b, unsigned size) | |
| 25 | { | ||
| 26 | unsigned i, j; | ||
| 27 | unsigned p[42]; | ||
| 28 | |||
| 29 |
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7 | av_assert0(size < FF_ARRAY_ELEMS(p)); |
| 30 | |||
| 31 | 7 | p[0] = 1; | |
| 32 | 7 | av_bprintf(b, "%8d\n", 1); | |
| 33 |
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142 | for (i = 1; i <= size; i++) { |
| 34 | 135 | p[i] = 1; | |
| 35 |
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1655 | for (j = i - 1; j > 0; j--) |
| 36 | 1520 | p[j] = p[j] + p[j - 1]; | |
| 37 |
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1925 | for (j = 0; j <= i; j++) |
| 38 | 1790 | av_bprintf(b, "%8d", p[j]); | |
| 39 | 135 | av_bprintf(b, "\n"); | |
| 40 | } | ||
| 41 | 7 | } | |
| 42 | |||
| 43 | 1 | int main(void) | |
| 44 | { | ||
| 45 | AVBPrint b; | ||
| 46 | char buf[256]; | ||
| 47 | 1 | struct tm testtime = { .tm_year = 100, .tm_mon = 11, .tm_mday = 20 }; | |
| 48 | |||
| 49 | 1 | av_bprint_init(&b, 0, AV_BPRINT_SIZE_UNLIMITED); | |
| 50 | 1 | bprint_pascal(&b, 5); | |
| 51 | 1 | printf("Short text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len); | |
| 52 | 1 | printf("%s\n", b.str); | |
| 53 | 1 | av_bprint_finalize(&b, NULL); | |
| 54 | |||
| 55 | 1 | av_bprint_init(&b, 0, AV_BPRINT_SIZE_UNLIMITED); | |
| 56 | 1 | bprint_pascal(&b, 25); | |
| 57 | 1 | printf("Long text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len); | |
| 58 | 1 | av_bprint_finalize(&b, NULL); | |
| 59 | |||
| 60 | 1 | av_bprint_init(&b, 0, 2048); | |
| 61 | 1 | bprint_pascal(&b, 25); | |
| 62 | 1 | printf("Long text in limited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len); | |
| 63 | 1 | av_bprint_finalize(&b, NULL); | |
| 64 | |||
| 65 | 1 | av_bprint_init(&b, 0, AV_BPRINT_SIZE_AUTOMATIC); | |
| 66 | 1 | bprint_pascal(&b, 5); | |
| 67 | 1 | printf("Short text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str), b.len); | |
| 68 | |||
| 69 | 1 | av_bprint_init(&b, 0, AV_BPRINT_SIZE_AUTOMATIC); | |
| 70 | 1 | bprint_pascal(&b, 25); | |
| 71 | 1 | printf("Long text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str)/8*8, b.len); | |
| 72 | /* Note that the size of the automatic buffer is arch-dependent. */ | ||
| 73 | |||
| 74 | 1 | av_bprint_init(&b, 0, AV_BPRINT_SIZE_COUNT_ONLY); | |
| 75 | 1 | bprint_pascal(&b, 25); | |
| 76 | 1 | printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(b.str), b.len); | |
| 77 | |||
| 78 | 1 | av_bprint_init_for_buffer(&b, buf, sizeof(buf)); | |
| 79 | 1 | bprint_pascal(&b, 25); | |
| 80 | 1 | printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(buf), b.len); | |
| 81 | |||
| 82 | 1 | av_bprint_init(&b, 0, AV_BPRINT_SIZE_UNLIMITED); | |
| 83 | 1 | av_bprint_strftime(&b, "%Y-%m-%d", &testtime); | |
| 84 | 1 | printf("strftime full: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str); | |
| 85 | 1 | av_bprint_finalize(&b, NULL); | |
| 86 | |||
| 87 | 1 | av_bprint_init(&b, 0, 8); | |
| 88 | 1 | av_bprint_strftime(&b, "%Y-%m-%d", &testtime); | |
| 89 | 1 | printf("strftime truncated: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str); | |
| 90 | |||
| 91 | 1 | return 0; | |
| 92 | } | ||
| 93 |