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_COM_EXT_LABEL 0xfe 47 #define GIF_APP_EXT_LABEL 0xff 48 #define NETSCAPE_EXT_STR "NETSCAPE2.0" 49 50 #endif /* AVCODEC_GIF_H */ 51