dvbsubenc.c File Reference

#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "libavutil/colorspace.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures
struct	DVBSubtitleContext

Macros
#define	PUTBITS2(val)
#define	PUTBITS4(val)
#define	OFFSET(x)
#define	SE   AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Functions
static int	dvb_encode_rle2 (uint8_t **pq, int buf_size, const uint8_t *bitmap, int linesize, int w, int h)
static int	dvb_encode_rle4 (uint8_t **pq, int buf_size, const uint8_t *bitmap, int linesize, int w, int h)
static int	dvb_encode_rle8 (uint8_t **pq, int buf_size, const uint8_t *bitmap, int linesize, int w, int h)
static int	dvbsub_encode (AVCodecContext *avctx, uint8_t *outbuf, int buf_size, const AVSubtitle *h)

Variables
static const AVOption	options []
static const AVClass	dvbsubenc_class
const FFCodec	ff_dvbsub_encoder

Macro Definition Documentation

PUTBITS2

#define PUTBITS2

(

val

)

Value:

{\
    bitbuf |= (val) << bitcnt;\
    bitcnt -= 2;\
    if (bitcnt < 0) {\
        bitcnt = 6;\
        *q++ = bitbuf;\
        bitbuf = 0;\
    }\
}

Definition at line 33 of file dvbsubenc.c.

Referenced by dvb_encode_rle2().

PUTBITS4

#define PUTBITS4

(

val

)

Value:

{\
    bitbuf |= (val) << bitcnt;\
    bitcnt -= 4;\
    if (bitcnt < 0) {\
        bitcnt = 4;\
        *q++ = bitbuf;\
        bitbuf = 0;\
    }\
}

Definition at line 127 of file dvbsubenc.c.

Referenced by dvb_encode_rle4().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(DVBSubtitleContext, x)

Definition at line 530 of file dvbsubenc.c.

SE

#define SE   AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 531 of file dvbsubenc.c.

Referenced by alloc_lut(), alloc_lut_if_necessary(), build_chord_set(), compute_max_lut(), compute_max_row(), compute_min_lut(), compute_min_row(), dilate(), erode(), evolve(), free_chord_set(), line_dilate(), line_erode(), update_max_lut(), and update_min_lut().

Function Documentation

dvb_encode_rle2()

static int dvb_encode_rle2 ( uint8_t ** pq, int buf_size, const uint8_t * bitmap, int linesize, int w, int h )

static

Definition at line 44 of file dvbsubenc.c.

Referenced by dvbsub_encode().

dvb_encode_rle4()

static int dvb_encode_rle4 ( uint8_t ** pq, int buf_size, const uint8_t * bitmap, int linesize, int w, int h )

static

Definition at line 139 of file dvbsubenc.c.

Referenced by dvbsub_encode().

dvb_encode_rle8()

static int dvb_encode_rle8 ( uint8_t ** pq, int buf_size, const uint8_t * bitmap, int linesize, int w, int h )

static

Definition at line 214 of file dvbsubenc.c.

Referenced by dvbsub_encode().

dvbsub_encode()

static int dvbsub_encode ( AVCodecContext * avctx, uint8_t * outbuf, int buf_size, const AVSubtitle * h )

static

Definition at line 276 of file dvbsubenc.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    {"min_bpp", "minimum bits-per-pixel for subtitle colors (2, 4 or 8)", OFFSET(min_bpp), AV_OPT_TYPE_INT, {.i64 = 4}, 2, 8, SE},
    { NULL },
}

Definition at line 532 of file dvbsubenc.c.

dvbsubenc_class

const AVClass dvbsubenc_class

static

Initial value:

= {
    .class_name = "DVBSUB subtitle encoder",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 537 of file dvbsubenc.c.

ff_dvbsub_encoder

const FFCodec ff_dvbsub_encoder

Initial value:

= {
    .p.name         = "dvbsub",
    CODEC_LONG_NAME("DVB subtitles"),
    .p.type         = AVMEDIA_TYPE_SUBTITLE,
    .p.id           = AV_CODEC_ID_DVB_SUBTITLE,
    .priv_data_size = sizeof(DVBSubtitleContext),
    FF_CODEC_ENCODE_SUB_CB(dvbsub_encode),
    .p.priv_class   = &dvbsubenc_class,
}

Definition at line 544 of file dvbsubenc.c.