/* * Copyright (c) 2013 Stefano Sabatini * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <stdio.h> #include "libavutil/avstring.h" #include "libavutil/file.h" static void print_sequence(const char *p, int l, int indent) { int i; for (i = 0; i < l; i++) printf("%02X", (uint8_t)p[i]); printf("%*s", indent-l*2, ""); } int main(int argc, char **argv) { int ret; char *filename = argv[1]; uint8_t *file_buf; size_t file_buf_size; uint32_t code; const uint8_t *p, *endp; ret = av_file_map(filename, &file_buf, &file_buf_size, 0, NULL); if (ret < 0) return 1; p = file_buf; endp = file_buf + file_buf_size; while (p < endp) { int l, r; const uint8_t *p0 = p; code = UINT32_MAX; r = av_utf8_decode(&code, &p, endp, 0); l = (int)(p-p0); print_sequence(p0, l, 20); if (code != UINT32_MAX) { printf("%-10d 0x%-10X %-5d ", code, code, l); if (r >= 0) { if (*p0 == '\n') printf("\\n\n"); else printf ("%.*s\n", l, p0); } else { printf("invalid code range\n"); } } else { printf("invalid sequence\n"); } } av_file_unmap(file_buf, file_buf_size); return 0; }