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Data Structures | Macros | Functions | Variables
dvbsubdec.c File Reference
#include "avcodec.h"
#include "get_bits.h"
#include "bytestream.h"
#include "libavutil/colorspace.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures

struct  DVBSubCLUT
 
struct  DVBSubObjectDisplay
 
struct  DVBSubObject
 
struct  DVBSubRegionDisplay
 
struct  DVBSubRegion
 
struct  DVBSubDisplayDefinition
 
struct  DVBSubContext
 

Macros

#define DVBSUB_PAGE_SEGMENT   0x10
 
#define DVBSUB_REGION_SEGMENT   0x11
 
#define DVBSUB_CLUT_SEGMENT   0x12
 
#define DVBSUB_OBJECT_SEGMENT   0x13
 
#define DVBSUB_DISPLAYDEFINITION_SEGMENT   0x14
 
#define DVBSUB_DISPLAY_SEGMENT   0x80
 
#define cm   (ff_crop_tab + MAX_NEG_CROP)
 
#define RGBA(r, g, b, a)   (((unsigned)(a) << 24) | ((r) << 16) | ((g) << 8) | (b))
 
#define DS   AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_SUBTITLE_PARAM
 

Functions

static DVBSubObjectget_object (DVBSubContext *ctx, int object_id)
 
static DVBSubCLUTget_clut (DVBSubContext *ctx, int clut_id)
 
static DVBSubRegionget_region (DVBSubContext *ctx, int region_id)
 
static void delete_region_display_list (DVBSubContext *ctx, DVBSubRegion *region)
 
static void delete_cluts (DVBSubContext *ctx)
 
static void delete_objects (DVBSubContext *ctx)
 
static void delete_regions (DVBSubContext *ctx)
 
static av_cold int dvbsub_init_decoder (AVCodecContext *avctx)
 
static av_cold int dvbsub_close_decoder (AVCodecContext *avctx)
 
static int dvbsub_read_2bit_string (AVCodecContext *avctx, uint8_t *destbuf, int dbuf_len, const uint8_t **srcbuf, int buf_size, int non_mod, uint8_t *map_table, int x_pos)
 
static int dvbsub_read_4bit_string (AVCodecContext *avctx, uint8_t *destbuf, int dbuf_len, const uint8_t **srcbuf, int buf_size, int non_mod, uint8_t *map_table, int x_pos)
 
static int dvbsub_read_8bit_string (AVCodecContext *avctx, uint8_t *destbuf, int dbuf_len, const uint8_t **srcbuf, int buf_size, int non_mod, uint8_t *map_table, int x_pos)
 
static int save_subtitle_set (AVCodecContext *avctx, AVSubtitle *sub, int *got_output)
 
static void dvbsub_parse_pixel_data_block (AVCodecContext *avctx, DVBSubObjectDisplay *display, const uint8_t *buf, int buf_size, int top_bottom, int non_mod)
 
static void dvbsub_parse_object_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size)
 
static int dvbsub_parse_clut_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size)
 
static void dvbsub_parse_region_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size)
 
static void dvbsub_parse_page_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size, AVSubtitle *sub, int *got_output)
 
static void dvbsub_parse_display_definition_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size)
 
static void dvbsub_display_end_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size, AVSubtitle *sub, int *got_output)
 
static int dvbsub_decode (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
 

Variables

static DVBSubCLUT default_clut
 
static const AVOption options []
 
static const AVClass dvbsubdec_class
 
AVCodec ff_dvbsub_decoder
 

Macro Definition Documentation

#define DVBSUB_PAGE_SEGMENT   0x10

Definition at line 28 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_REGION_SEGMENT   0x11

Definition at line 29 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_CLUT_SEGMENT   0x12

Definition at line 30 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_OBJECT_SEGMENT   0x13

Definition at line 31 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_DISPLAYDEFINITION_SEGMENT   0x14

Definition at line 32 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_DISPLAY_SEGMENT   0x80

Definition at line 33 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define cm   (ff_crop_tab + MAX_NEG_CROP)
#define RGBA (   r,
  g,
  b,
  a 
)    (((unsigned)(a) << 24) | ((r) << 16) | ((g) << 8) | (b))

Definition at line 1609 of file dvbsubdec.c.

Function Documentation

static DVBSubObject* get_object ( DVBSubContext ctx,
int  object_id 
)
static
static DVBSubCLUT* get_clut ( DVBSubContext ctx,
int  clut_id 
)
static

Definition at line 260 of file dvbsubdec.c.

Referenced by dvbsub_parse_clut_segment().

static DVBSubRegion* get_region ( DVBSubContext ctx,
int  region_id 
)
static
static void delete_region_display_list ( DVBSubContext ctx,
DVBSubRegion region 
)
static

Definition at line 282 of file dvbsubdec.c.

Referenced by delete_regions(), and dvbsub_parse_region_segment().

static void delete_cluts ( DVBSubContext ctx)
static

Definition at line 328 of file dvbsubdec.c.

Referenced by dvbsub_close_decoder(), and dvbsub_parse_page_segment().

static void delete_objects ( DVBSubContext ctx)
static

Definition at line 339 of file dvbsubdec.c.

Referenced by dvbsub_close_decoder(), and dvbsub_parse_page_segment().

static void delete_regions ( DVBSubContext ctx)
static

Definition at line 350 of file dvbsubdec.c.

Referenced by dvbsub_close_decoder(), and dvbsub_parse_page_segment().

static av_cold int dvbsub_init_decoder ( AVCodecContext avctx)
static

Definition at line 364 of file dvbsubdec.c.

static av_cold int dvbsub_close_decoder ( AVCodecContext avctx)
static

Definition at line 448 of file dvbsubdec.c.

static int dvbsub_read_2bit_string ( AVCodecContext avctx,
uint8_t destbuf,
int  dbuf_len,
const uint8_t **  srcbuf,
int  buf_size,
int  non_mod,
uint8_t map_table,
int  x_pos 
)
static

Definition at line 471 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

static int dvbsub_read_4bit_string ( AVCodecContext avctx,
uint8_t destbuf,
int  dbuf_len,
const uint8_t **  srcbuf,
int  buf_size,
int  non_mod,
uint8_t map_table,
int  x_pos 
)
static

Definition at line 579 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

static int dvbsub_read_8bit_string ( AVCodecContext avctx,
uint8_t destbuf,
int  dbuf_len,
const uint8_t **  srcbuf,
int  buf_size,
int  non_mod,
uint8_t map_table,
int  x_pos 
)
static

Definition at line 702 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

static int save_subtitle_set ( AVCodecContext avctx,
AVSubtitle sub,
int *  got_output 
)
static

Definition at line 756 of file dvbsubdec.c.

Referenced by dvbsub_display_end_segment(), and dvbsub_parse_page_segment().

static void dvbsub_parse_pixel_data_block ( AVCodecContext avctx,
DVBSubObjectDisplay display,
const uint8_t buf,
int  buf_size,
int  top_bottom,
int  non_mod 
)
static

Definition at line 878 of file dvbsubdec.c.

Referenced by dvbsub_parse_object_segment().

static void dvbsub_parse_object_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size 
)
static

Definition at line 994 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static int dvbsub_parse_clut_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size 
)
static

Definition at line 1053 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static void dvbsub_parse_region_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size 
)
static

Definition at line 1150 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static void dvbsub_parse_page_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size,
AVSubtitle sub,
int *  got_output 
)
static

Definition at line 1266 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static void dvbsub_parse_display_definition_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size 
)
static

Definition at line 1443 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static void dvbsub_display_end_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size,
AVSubtitle sub,
int *  got_output 
)
static

Definition at line 1487 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static int dvbsub_decode ( AVCodecContext avctx,
void data,
int *  data_size,
AVPacket avpkt 
)
static

Definition at line 1500 of file dvbsubdec.c.

Variable Documentation

DVBSubCLUT default_clut
static

Definition at line 165 of file dvbsubdec.c.

const AVOption options[]
static
Initial value:
= {
{"compute_edt", "compute end of time using pts or timeout", 0x42, FF_OPT_TYPE_INT, {.i64 = 0}, 0, 1, DS},
{NULL}
}

Definition at line 1610 of file dvbsubdec.c.

const AVClass dvbsubdec_class
static
Initial value:
= {
.class_name = "DVB Sub Decoder",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 1614 of file dvbsubdec.c.

AVCodec ff_dvbsub_decoder
Initial value:
= {
.name = "dvbsub",
.long_name = NULL_IF_CONFIG_SMALL("DVB subtitles"),
.priv_data_size = sizeof(DVBSubContext),
.priv_class = &dvbsubdec_class,
}

Definition at line 1621 of file dvbsubdec.c.