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gif.c File Reference
#include "avformat.h"
#include "internal.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures

struct  GIFContext


#define OFFSET(x)   offsetof(GIFContext, x)


static int gif_image_write_header (AVFormatContext *s, int width, int height, int loop_count, uint32_t *palette)
static int gif_write_header (AVFormatContext *s)
static int flush_packet (AVFormatContext *s, AVPacket *new)
static int gif_write_packet (AVFormatContext *s, AVPacket *pkt)
static int gif_write_trailer (AVFormatContext *s)


static const AVOption options []
static const AVClass gif_muxer_class
AVOutputFormat ff_gif_muxer

Macro Definition Documentation

#define OFFSET (   x)    offsetof(GIFContext, x)

Definition at line 200 of file gif.c.


Definition at line 201 of file gif.c.

Function Documentation

static int gif_image_write_header ( AVFormatContext s,
int  width,
int  height,
int  loop_count,
uint32_t *  palette 

Definition at line 31 of file gif.c.

Referenced by gif_write_header().

static int gif_write_header ( AVFormatContext s)

Definition at line 88 of file gif.c.

static int flush_packet ( AVFormatContext s,
AVPacket new 

Definition at line 119 of file gif.c.

Referenced by gif_write_packet(), and gif_write_trailer().

static int gif_write_packet ( AVFormatContext s,
AVPacket pkt 

Definition at line 175 of file gif.c.

static int gif_write_trailer ( AVFormatContext s)

Definition at line 188 of file gif.c.

Variable Documentation

const AVOption options[]
Initial value:
= {
{ "loop", "Number of times to loop the output: -1 - no loop, 0 - infinite loop", OFFSET(loop),
AV_OPT_TYPE_INT, { .i64 = 0 }, -1, 65535, ENC },
{ "final_delay", "Force delay (in centiseconds) after the last frame", OFFSET(last_delay),
AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 65535, ENC },
{ NULL },

Definition at line 202 of file gif.c.

const AVClass gif_muxer_class
Initial value:
= {
.class_name = "GIF muxer",
.item_name = av_default_item_name,
.option = options,

Definition at line 210 of file gif.c.

AVOutputFormat ff_gif_muxer
Initial value:
= {
.name = "gif",
.long_name = NULL_IF_CONFIG_SMALL("GIF Animation"),
.mime_type = "image/gif",
.extensions = "gif",
.priv_data_size = sizeof(GIFContext),
.audio_codec = AV_CODEC_ID_NONE,
.video_codec = AV_CODEC_ID_GIF,
.priv_class = &gif_muxer_class,

Definition at line 217 of file gif.c.