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 26static 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 34int 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