Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright (C) 2010-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| 3 | ** |
| 4 | ** This program is free software; you can redistribute it and/or modify |
| 5 | ** it under the terms of the GNU Lesser General Public License as published by |
| 6 | ** the Free Software Foundation; either version 2.1 of the License, or |
| 7 | ** (at your option) any later version. |
| 8 | ** |
| 9 | ** This program is distributed in the hope that it will be useful, |
| 10 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | ** GNU Lesser General Public License for more details. |
| 13 | ** |
| 14 | ** You should have received a copy of the GNU Lesser General Public License |
| 15 | ** along with this program; if not, write to the Free Software |
| 16 | ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #include "sfconfig.h" |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <string.h> |
| 24 | #include <ctype.h> |
| 25 | |
| 26 | #include "sndfile.h" |
| 27 | #include "sfendian.h" |
| 28 | #include "common.h" |
| 29 | |
| 30 | int |
| 31 | id3_skip (SF_PRIVATE * psf) |
| 32 | { unsigned char buf [10] ; |
| 33 | |
| 34 | memset (buf, 0, sizeof (buf)) ; |
| 35 | psf_binheader_readf (psf, "pb", 0, buf, 10) ; |
| 36 | |
| 37 | if (buf [0] == 'I' && buf [1] == 'D' && buf [2] == '3') |
| 38 | { int offset = buf [6] & 0x7f ; |
| 39 | offset = (offset << 7) | (buf [7] & 0x7f) ; |
| 40 | offset = (offset << 7) | (buf [8] & 0x7f) ; |
| 41 | offset = (offset << 7) | (buf [9] & 0x7f) ; |
| 42 | |
| 43 | psf_binheader_readf (psf, "j", make_size_t (offset)) ; |
| 44 | |
| 45 | psf_log_printf (psf, "ID3 length : %d\n--------------------\n", offset) ; |
| 46 | |
| 47 | psf->fileoffset = 10 + offset ; |
| 48 | return 1 ; |
| 49 | } ; |
| 50 | |
| 51 | return 0 ; |
| 52 | } /* id3_skip */ |