1 /*
2 * BMP parser
3 * Copyright (c) 2012 Paul B Mahol
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * BMP parser
25 */
26
29
31
37
39 const uint8_t **poutbuf, int *poutbuf_size,
40 const uint8_t *buf, int buf_size)
41 {
46
47 *poutbuf_size = 0;
49
50 restart:
52 for (;
i < buf_size;
i++) {
55 if ((
state >> 48) == ((
'B' << 8) |
'M')) {
59 }
61 // unsigned hsize = av_bswap32(state>>32);
63 if (ihsize < 12 || ihsize > 200) {
65 continue;
66 }
69
73 break;
74 } else {
76 goto restart;
77 }
80 }
82 } else {
88
90 goto restart;
91 }
92 }
93
96 return buf_size;
97
100 else
102
103 *poutbuf = buf;
104 *poutbuf_size = buf_size;
105 return next;
106 }
107
113 };