libavcodec/dvbsubdec.c File Reference

#include "avcodec.h"
#include "dsputil.h"
#include "get_bits.h"
#include "bytestream.h"
#include "libavutil/colorspace.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

Defines

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

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 (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 (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 (uint8_t *destbuf, int dbuf_len, const uint8_t **srcbuf, int buf_size, int non_mod, uint8_t *map_table, int x_pos)
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 void 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)
static void dvbsub_parse_display_definition_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size)
static int dvbsub_display_end_segment (AVCodecContext *avctx, const uint8_t *buf, int buf_size, AVSubtitle *sub)
static int dvbsub_decode (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)

Variables

static DVBSubCLUT default_clut
AVCodec ff_dvbsub_decoder


Define Documentation

#define cm   (ff_cropTbl + MAX_NEG_CROP)

#define DVBSUB_CLUT_SEGMENT   0x12

Definition at line 29 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_DISPLAY_SEGMENT   0x80

Definition at line 32 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_DISPLAYDEFINITION_SEGMENT   0x14

Definition at line 31 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_OBJECT_SEGMENT   0x13

Definition at line 30 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_PAGE_SEGMENT   0x10

Definition at line 27 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_REGION_SEGMENT   0x11

Definition at line 28 of file dvbsubdec.c.

Referenced by dvbsub_decode().

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


Function Documentation

static void delete_cluts ( DVBSubContext ctx  )  [static]

Definition at line 326 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_region_display_list ( DVBSubContext ctx,
DVBSubRegion region 
) [static]

Definition at line 280 of file dvbsubdec.c.

Referenced by delete_regions(), and dvbsub_parse_region_segment().

static void delete_regions ( DVBSubContext ctx  )  [static]

Definition at line 352 of file dvbsubdec.c.

Referenced by dvbsub_close_decoder(), and dvbsub_parse_page_segment().

static av_cold int dvbsub_close_decoder ( AVCodecContext avctx  )  [static]

Definition at line 447 of file dvbsubdec.c.

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

Definition at line 1446 of file dvbsubdec.c.

static int dvbsub_display_end_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size,
AVSubtitle sub 
) [static]

Definition at line 1362 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static av_cold int dvbsub_init_decoder ( AVCodecContext avctx  )  [static]

Definition at line 368 of file dvbsubdec.c.

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

Definition at line 936 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 1318 of file dvbsubdec.c.

Referenced by dvbsub_decode().

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

Definition at line 877 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static void dvbsub_parse_page_segment ( AVCodecContext avctx,
const uint8_t buf,
int  buf_size 
) [static]

Definition at line 1143 of file dvbsubdec.c.

Referenced by dvbsub_decode().

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 761 of file dvbsubdec.c.

Referenced by dvbsub_parse_object_segment().

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

Definition at line 1027 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static int dvbsub_read_2bit_string ( 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 470 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

static int dvbsub_read_4bit_string ( 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 577 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

static int dvbsub_read_8bit_string ( 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 700 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

static DVBSubCLUT* get_clut ( DVBSubContext ctx,
int  clut_id 
) [static]

Definition at line 258 of file dvbsubdec.c.

Referenced by dvbsub_display_end_segment(), and dvbsub_parse_clut_segment().

static DVBSubObject* get_object ( DVBSubContext ctx,
int  object_id 
) [static]

static DVBSubRegion* get_region ( DVBSubContext ctx,
int  region_id 
) [static]


Variable Documentation

Definition at line 166 of file dvbsubdec.c.

Initial value:

 {
    .name           = "dvbsub",
    .type           = AVMEDIA_TYPE_SUBTITLE,
    .id             = AV_CODEC_ID_DVB_SUBTITLE,
    .priv_data_size = sizeof(DVBSubContext),
    .init           = dvbsub_init_decoder,
    .close          = dvbsub_close_decoder,
    .decode         = dvbsub_decode,
    .long_name      = NULL_IF_CONFIG_SMALL("DVB subtitles"),
}

Definition at line 1537 of file dvbsubdec.c.


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