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
print_sequence(const char * p,int l,int indent)26 static void print_sequence(const char *p, int l, int indent)
27 {
28 int i;
29 for (i = 0; i < l; i++)
30 printf("%02X", (uint8_t)p[i]);
31 printf("%*s", indent-l*2, "");
32 }
33
main(int argc,char ** argv)34 int main(int argc, char **argv)
35 {
36 int ret;
37 char *filename = argv[1];
38 uint8_t *file_buf;
39 size_t file_buf_size;
40 uint32_t code;
41 const uint8_t *p, *endp;
42
43 ret = av_file_map(filename, &file_buf, &file_buf_size, 0, NULL);
44 if (ret < 0)
45 return 1;
46
47 p = file_buf;
48 endp = file_buf + file_buf_size;
49 while (p < endp) {
50 int l, r;
51 const uint8_t *p0 = p;
52 code = UINT32_MAX;
53 r = av_utf8_decode(&code, &p, endp, 0);
54 l = (int)(p-p0);
55 print_sequence(p0, l, 20);
56 if (code != UINT32_MAX) {
57 printf("%-10d 0x%-10X %-5d ", code, code, l);
58 if (r >= 0) {
59 if (*p0 == '\n') printf("\\n\n");
60 else printf ("%.*s\n", l, p0);
61 } else {
62 printf("invalid code range\n");
63 }
64 } else {
65 printf("invalid sequence\n");
66 }
67 }
68
69 av_file_unmap(file_buf, file_buf_size);
70 return 0;
71 }
72