| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2013 Stefano Sabatini | ||
| 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 <stdio.h> | ||
| 22 | |||
| 23 | #include "libavutil/avstring.h" | ||
| 24 | #include "libavutil/file.h" | ||
| 25 | |||
| 26 | static const uint8_t vectors[] = | ||
| 27 | "A\n" | ||
| 28 | "\xC3\xA9\n" /* U+00E9 */ | ||
| 29 | "\xE2\x82\xAC\n" /* U+20AC */ | ||
| 30 | "\xF0\x9F\x98\x80\n" /* U+1F600 */ | ||
| 31 | "\xF4\x8F\xBF\xBF\n" /* U+10FFFF */ | ||
| 32 | "\xF4\x90\x80\x80\n" /* U+110000 */ | ||
| 33 | "\xF8\x88\x80\x80\x80\n" /* 5 byte form of U+200000 */ | ||
| 34 | "\xC0\x80\n" /* overlong NUL */ | ||
| 35 | "\xE0\x80\x80\n" /* overlong NUL */ | ||
| 36 | "\xED\xA0\x80\n" /* U+D800 surrogate */ | ||
| 37 | "\xEF\xBF\xBF\n" /* U+FFFF */ | ||
| 38 | "\x80\n" /* stray continuation */ | ||
| 39 | "\xFE\n" /* invalid lead byte */ | ||
| 40 | "\xC3" "A\n" /* missing continuation */ | ||
| 41 | "\xE2\x82"; /* truncated */ | ||
| 42 | |||
| 43 | 31 | static void print_sequence(const char *p, int l, int indent) | |
| 44 | { | ||
| 45 | int i; | ||
| 46 |
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85 | for (i = 0; i < l; i++) |
| 47 | 54 | printf("%02X", (uint8_t)p[i]); | |
| 48 | 31 | printf("%*s", indent-l*2, ""); | |
| 49 | 31 | } | |
| 50 | |||
| 51 | 1 | static void decode(const uint8_t *p, const uint8_t *endp) | |
| 52 | { | ||
| 53 | uint32_t code; | ||
| 54 | |||
| 55 |
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32 | while (p < endp) { |
| 56 | int l, r; | ||
| 57 | 31 | const uint8_t *p0 = p; | |
| 58 | 31 | code = UINT32_MAX; | |
| 59 | 31 | r = av_utf8_decode(&code, &p, endp, 0); | |
| 60 | 31 | l = (int)(p-p0); | |
| 61 | 31 | print_sequence(p0, l, 20); | |
| 62 |
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31 | if (code != UINT32_MAX) { |
| 63 | 24 | printf("%-10d 0x%-10X %-5d ", code, code, l); | |
| 64 |
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24 | if (r >= 0) { |
| 65 |
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20 | if (*p0 == '\n') printf("\\n\n"); |
| 66 | 6 | else printf ("%.*s\n", l, p0); | |
| 67 | } else { | ||
| 68 | 4 | printf("invalid code range\n"); | |
| 69 | } | ||
| 70 | } else { | ||
| 71 | 7 | printf("invalid sequence\n"); | |
| 72 | } | ||
| 73 | } | ||
| 74 | 1 | } | |
| 75 | |||
| 76 | 1 | int main(int argc, char **argv) | |
| 77 | { | ||
| 78 |
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1 | if (argc > 1) { |
| 79 | uint8_t *file_buf; | ||
| 80 | size_t file_buf_size; | ||
| 81 | ✗ | int ret = av_file_map(argv[1], &file_buf, &file_buf_size, 0, NULL); | |
| 82 | ✗ | if (ret < 0) | |
| 83 | ✗ | return 1; | |
| 84 | ✗ | decode(file_buf, file_buf + file_buf_size); | |
| 85 | ✗ | av_file_unmap(file_buf, file_buf_size); | |
| 86 | } else { | ||
| 87 | 1 | decode(vectors, vectors + sizeof(vectors) - 1); | |
| 88 | } | ||
| 89 | |||
| 90 | 1 | return 0; | |
| 91 | } | ||
| 92 |