blob: 9f35778857216b7ab61e082ff10fc8e13ded62e1
1 | /* |
2 | * GIF format definitions |
3 | * Copyright (c) 2003 Fabrice Bellard |
4 | * Copyright (c) 2006 Baptiste Coudurier |
5 | * Copyright (c) 2012 Vitaliy E Sugrobov |
6 | * |
7 | * This file is part of FFmpeg. |
8 | * |
9 | * FFmpeg is free software; you can redistribute it and/or |
10 | * modify it under the terms of the GNU Lesser General Public |
11 | * License as published by the Free Software Foundation; either |
12 | * version 2.1 of the License, or (at your option) any later version. |
13 | * |
14 | * FFmpeg is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | * Lesser General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU Lesser General Public |
20 | * License along with FFmpeg; if not, write to the Free Software |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
22 | */ |
23 | |
24 | /** |
25 | * @file |
26 | * GIF format definitions. |
27 | */ |
28 | |
29 | #ifndef AVCODEC_GIF_H |
30 | #define AVCODEC_GIF_H |
31 | |
32 | #include <stdint.h> |
33 | |
34 | static const uint8_t gif87a_sig[6] = "GIF87a"; |
35 | static const uint8_t gif89a_sig[6] = "GIF89a"; |
36 | |
37 | #define GCE_DISPOSAL_NONE 0 |
38 | #define GCE_DISPOSAL_INPLACE 1 |
39 | #define GCE_DISPOSAL_BACKGROUND 2 |
40 | #define GCE_DISPOSAL_RESTORE 3 |
41 | |
42 | #define GIF_TRAILER 0x3b |
43 | #define GIF_EXTENSION_INTRODUCER 0x21 |
44 | #define GIF_IMAGE_SEPARATOR 0x2c |
45 | #define GIF_GCE_EXT_LABEL 0xf9 |
46 | #define GIF_APP_EXT_LABEL 0xff |
47 | #define NETSCAPE_EXT_STR "NETSCAPE2.0" |
48 | |
49 | #endif /* AVCODEC_GIF_H */ |
50 |