libavcodec/gifdec.c File Reference

#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
#include "lzw.h"

Go to the source code of this file.

Data Structures
struct	GifState
Defines
#define	GCE_DISPOSAL_NONE   0
#define	GCE_DISPOSAL_INPLACE   1
#define	GCE_DISPOSAL_BACKGROUND   2
#define	GCE_DISPOSAL_RESTORE   3
Functions
static int	gif_read_image (GifState *s)
static int	gif_read_extension (GifState *s)
static int	gif_read_header1 (GifState *s)
static int	gif_parse_next_image (GifState *s)
static av_cold int	gif_decode_init (AVCodecContext *avctx)
static int	gif_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int	gif_decode_close (AVCodecContext *avctx)
Variables
static const uint8_t	gif87a_sig [6] = "GIF87a"
static const uint8_t	gif89a_sig [6] = "GIF89a"
AVCodec	ff_gif_decoder

---

Define Documentation

#define GCE_DISPOSAL_BACKGROUND   2

Definition at line 32 of file gifdec.c.

#define GCE_DISPOSAL_INPLACE   1

Definition at line 31 of file gifdec.c.

#define GCE_DISPOSAL_NONE   0

Definition at line 30 of file gifdec.c.

#define GCE_DISPOSAL_RESTORE   3

Definition at line 33 of file gifdec.c.

---

Function Documentation

static av_cold int gif_decode_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 318 of file gifdec.c.

static int gif_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 284 of file gifdec.c.

static av_cold int gif_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 271 of file gifdec.c.

static int gif_parse_next_image

(

GifState *

s

)

[static]

Definition at line 247 of file gifdec.c.

Referenced by gif_decode_frame().

static int gif_read_extension

(

GifState *

s

)

[static]

Definition at line 158 of file gifdec.c.

Referenced by gif_parse_next_image().

static int gif_read_header1

(

GifState *

s

)

[static]

Definition at line 202 of file gifdec.c.

Referenced by gif_decode_frame().

static int gif_read_image

(

GifState *

s

)

[static]

Definition at line 65 of file gifdec.c.

Referenced by gif_parse_next_image().

---

Variable Documentation

AVCodec ff_gif_decoder

Initial value:

 {
    "gif",
    AVMEDIA_TYPE_VIDEO,
    CODEC_ID_GIF,
    sizeof(GifState),
    gif_decode_init,
    NULL,
    gif_decode_close,
    gif_decode_frame,
    CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("GIF (Graphics Interchange Format)"),
}

Definition at line 328 of file gifdec.c.

const uint8_t gif87a_sig[6] = "GIF87a" [static]

Definition at line 62 of file gifdec.c.

Referenced by gif_read_header1().

const uint8_t gif89a_sig[6] = "GIF89a" [static]

Definition at line 63 of file gifdec.c.

Referenced by gif_read_header1().