gif.h File Reference

GIF format definitions. More...

#include <stdint.h>
#include "libavutil/attributes_internal.h"

Go to the source code of this file.

Macros
#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"

Variables
static attribute_nonstring const uint8_t	gif87a_sig [6] = "GIF87a"
static attribute_nonstring const uint8_t	gif89a_sig [6] = "GIF89a"

Detailed Description

GIF format definitions.

Definition in file gif.h.

Macro Definition Documentation

GCE_DISPOSAL_NONE

#define GCE_DISPOSAL_NONE   0

Definition at line 39 of file gif.h.

Referenced by gif_decode_frame(), gif_read_extension(), and gif_read_image().

GCE_DISPOSAL_INPLACE

#define GCE_DISPOSAL_INPLACE   1

Definition at line 40 of file gif.h.

Referenced by gif_image_write_image().

GCE_DISPOSAL_BACKGROUND

#define GCE_DISPOSAL_BACKGROUND   2

Definition at line 41 of file gif.h.

Referenced by gif_image_write_image(), and gif_read_image().

GCE_DISPOSAL_RESTORE

#define GCE_DISPOSAL_RESTORE   3

Definition at line 42 of file gif.h.

Referenced by gif_read_image().

GIF_TRAILER

#define GIF_TRAILER   0x3b

Definition at line 44 of file gif.h.

Referenced by gif_find_frame_end(), gif_parse_next_image(), gif_read_header(), gif_write_packet(), and gif_write_trailer().

GIF_EXTENSION_INTRODUCER

#define GIF_EXTENSION_INTRODUCER   0x21

Definition at line 45 of file gif.h.

Referenced by gif_find_frame_end(), gif_image_write_image(), gif_parse_next_image(), gif_parse_packet(), gif_read_header(), and gif_write_packet().

GIF_IMAGE_SEPARATOR

#define GIF_IMAGE_SEPARATOR   0x2c

Definition at line 46 of file gif.h.

Referenced by gif_find_frame_end(), gif_image_write_image(), gif_parse_next_image(), and gif_read_header().

GIF_GCE_EXT_LABEL

#define GIF_GCE_EXT_LABEL   0xf9

Definition at line 47 of file gif.h.

Referenced by gif_find_frame_end(), gif_image_write_image(), gif_parse_packet(), gif_read_extension(), and gif_read_header().

GIF_COM_EXT_LABEL

#define GIF_COM_EXT_LABEL   0xfe

Definition at line 48 of file gif.h.

Referenced by gif_read_header().

GIF_APP_EXT_LABEL

#define GIF_APP_EXT_LABEL   0xff

Definition at line 49 of file gif.h.

Referenced by gif_read_header(), and gif_write_packet().

NETSCAPE_EXT_STR

#define NETSCAPE_EXT_STR   "NETSCAPE2.0"

Definition at line 50 of file gif.h.

Referenced by gif_read_header().

Variable Documentation

gif87a_sig

attribute_nonstring const uint8_t gif87a_sig[6] = "GIF87a"

static

Definition at line 36 of file gif.h.

Referenced by gif_decode_frame(), gif_find_frame_end(), gif_probe(), gif_probe(), gif_read_header1(), and resync().

gif89a_sig

attribute_nonstring const uint8_t gif89a_sig[6] = "GIF89a"

static

Definition at line 37 of file gif.h.

Referenced by gif_decode_frame(), gif_find_frame_end(), gif_image_write_image(), gif_probe(), gif_probe(), gif_read_header1(), and resync().