gif.c File Reference

#include "avformat.h"
#include "internal.h"
#include "mux.h"
#include "libavutil/imgutils.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/gif.h"

Go to the source code of this file.

Data Structures
struct	GIFContext

Macros
#define	OFFSET(x)   offsetof(GIFContext, x)
#define	ENC   AV_OPT_FLAG_ENCODING_PARAM

Functions
static av_cold int	gif_init (AVFormatContext *s)
static int	gif_parse_packet (AVFormatContext *s, const uint8_t *data, int size)
static int	gif_get_delay (GIFContext *gif, AVPacket *prev, AVPacket *new)
static int	gif_write_packet (AVFormatContext *s, AVPacket *new_pkt)
static int	gif_write_trailer (AVFormatContext *s)

Variables
static const AVOption	options []
static const AVClass	gif_muxer_class
const FFOutputFormat	ff_gif_muxer

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(GIFContext, x)

Definition at line 183 of file gif.c.

ENC

#define ENC   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 184 of file gif.c.

Function Documentation

gif_init()

static av_cold int gif_init ( AVFormatContext *  s )

static

Definition at line 43 of file gif.c.

gif_parse_packet()

static int gif_parse_packet ( AVFormatContext *  s, const uint8_t *  data, int  size  )

static

Definition at line 50 of file gif.c.

Referenced by gif_write_packet().

gif_get_delay()

static int gif_get_delay ( GIFContext *  gif, AVPacket *  prev, AVPacket *  new  )

static

Definition at line 77 of file gif.c.

Referenced by gif_write_packet().

gif_write_packet()

static int gif_write_packet ( AVFormatContext *  s, AVPacket *  new_pkt  )

static

Definition at line 89 of file gif.c.

Referenced by gif_write_trailer().

gif_write_trailer()

static int gif_write_trailer ( AVFormatContext *  s )

static

Definition at line 166 of file gif.c.

Variable Documentation

options

const AVOption options[]

static

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 185 of file gif.c.

gif_muxer_class

const AVClass gif_muxer_class

static

Initial value:

= {
    .class_name = "GIF muxer",
    .item_name  = av_default_item_name,
    .version    = LIBAVUTIL_VERSION_INT,
    .option     = options,
}

Definition at line 193 of file gif.c.

ff_gif_muxer

const FFOutputFormat ff_gif_muxer

Initial value:

= {
    .p.name         = "gif",
    .p.long_name    = NULL_IF_CONFIG_SMALL("CompuServe Graphics Interchange Format (GIF)"),
    .p.mime_type    = "image/gif",
    .p.extensions   = "gif",
    .priv_data_size = sizeof(GIFContext),
    .p.audio_codec  = AV_CODEC_ID_NONE,
    .p.video_codec  = AV_CODEC_ID_GIF,
    .p.subtitle_codec = AV_CODEC_ID_NONE,
    .flags_internal   = FF_OFMT_FLAG_MAX_ONE_OF_EACH |
                        FF_OFMT_FLAG_ONLY_DEFAULT_CODECS,
    .init             = gif_init,
    .write_packet   = gif_write_packet,
    .write_trailer  = gif_write_trailer,
    .p.priv_class   = &gif_muxer_class,
    .p.flags        = AVFMT_VARIABLE_FPS,
}

Definition at line 200 of file gif.c.