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)   (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))

Functions

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

Definition at line 34 of file dvbsubdec.c.

Referenced by cavs_idct8_add_c(), deinterlace_line_c(), deinterlace_line_inplace_c(), ff_bfin_vp3_idct_put(), ff_idct_put_mlib(), filter_common(), filter_mbedge(), h_block_filter(), idct_add(), idct_put(), intra_pred_plane(), mp_yuv_to_rgb(), parse_palette_segment(), pred16x16_tm_vp8_c(), pred4x4_tm_vp8_c(), pred8x8_tm_vp8_c(), rv30_weak_loop_filter(), rv40_weak_loop_filter(), v_block_filter(), wmv2_mspel8_h_lowpass(), wmv2_mspel8_v_lowpass(), and yuv_a_to_rgba().

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

Definition at line 153 of file dvbsubdec.c.

Referenced by dvbsub_init_decoder(), dvbsub_parse_clut_segment(), findRgbConvFn(), and parse_palette_segment().

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 1442 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 1358 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]

Definition at line 247 of file dvbsubdec.c.

Referenced by delete_region_display_list(), dvbsub_parse_object_segment(), and dvbsub_parse_region_segment().

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

Definition at line 269 of file dvbsubdec.c.

Referenced by dvbsub_display_end_segment(), dvbsub_parse_pixel_data_block(), and dvbsub_parse_region_segment().

Variable Documentation

DVBSubCLUT default_clut [static]

Definition at line 166 of file dvbsubdec.c.

AVCodec ff_dvbsub_decoder

Initial value:

 {
    .name           = "dvbsub",
    .type           = AVMEDIA_TYPE_SUBTITLE,
    .id             = 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 1523 of file dvbsubdec.c.

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