FFmpeg4/libavcodec/gif.h

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2023-07-02 12:20:28 +00:00
/*
* GIF format definitions
* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2006 Baptiste Coudurier
* Copyright (c) 2012 Vitaliy E Sugrobov
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* GIF format definitions.
*/
#ifndef AVCODEC_GIF_H
#define AVCODEC_GIF_H
#include <stdint.h>
static const uint8_t gif87a_sig[6] = "GIF87a";
static const uint8_t gif89a_sig[6] = "GIF89a";
#define GCE_DISPOSAL_NONE 0
#define GCE_DISPOSAL_INPLACE 1
#define GCE_DISPOSAL_BACKGROUND 2
#define GCE_DISPOSAL_RESTORE 3
#define GIF_TRAILER 0x3b
#define GIF_EXTENSION_INTRODUCER 0x21
#define GIF_IMAGE_SEPARATOR 0x2c
#define GIF_GCE_EXT_LABEL 0xf9
#define GIF_COM_EXT_LABEL 0xfe
#define GIF_APP_EXT_LABEL 0xff
#define NETSCAPE_EXT_STR "NETSCAPE2.0"
#endif /* AVCODEC_GIF_H */