2 * GIF format definitions
3 * Copyright (c) 2003 Fabrice Bellard
4 * Copyright (c) 2006 Baptiste Coudurier
5 * Copyright (c) 2012 Vitaliy E Sugrobov
7 * This file is part of FFmpeg.
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.
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.
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
26 * GIF format definitions.
29 #ifndef AVCODEC_GIFDEFS_H
30 #define AVCODEC_GIFDEFS_H
34 static const uint8_t gif87a_sig[6] = "GIF87a";
35 static const uint8_t gif89a_sig[6] = "GIF89a";
37 #define GCE_DISPOSAL_NONE 0
38 #define GCE_DISPOSAL_INPLACE 1
39 #define GCE_DISPOSAL_BACKGROUND 2
40 #define GCE_DISPOSAL_RESTORE 3
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"
49 #endif /* AVCODEC_GIFDEFS_H */