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 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	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)

Definition at line 35 of file dvbsubdec.c.

Referenced by cavs_idct8_add_c(), celt_decode_band(), celt_decode_bands(), config_output(), deinterlace_line_c(), deinterlace_line_inplace_c(), filter_common(), filter_frame(), filter_mbedge(), h_block_filter(), intra_pred_plane(), mp_yuv_to_rgb(), parse_palette_segment(), pred16x16_tm_vp8_c(), pred4x4_tm_vp8_c(), pred8x8_tm_vp8_c(), query_codec(), rv30_weak_loop_filter(), rv40_weak_loop_filter(), uninit(), v_block_filter(), wmv2_mspel8_h_lowpass(), wmv2_mspel8_v_lowpass(), and yuv_a_to_rgba().

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

Definition at line 152 of file dvbsubdec.c.

Referenced by dvbsub_init_decoder(), dvbsub_parse_clut_segment(), ff_sws_init_swscale_x86(), and findRgbConvFn().

#define DS   AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_SUBTITLE_PARAM

Definition at line 1588 of file dvbsubdec.c.

Function Documentation

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

static

Definition at line 249 of file dvbsubdec.c.

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

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

Definition at line 271 of file dvbsubdec.c.

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

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 341 of file dvbsubdec.c.

Referenced by dvbsub_close_decoder(), and dvbsub_parse_page_segment().

static void delete_regions ( DVBSubContext *  ctx )

static

Definition at line 354 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 370 of file dvbsubdec.c.

static av_cold int dvbsub_close_decoder ( AVCodecContext *  avctx )

static

Definition at line 454 of file dvbsubdec.c.

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 477 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 584 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 707 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

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

static

Definition at line 766 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 857 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 973 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 1032 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 1129 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 1245 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 1422 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 1466 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 1479 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 1589 of file dvbsubdec.c.

const AVClass dvbsubdec_class

static

Initial value:

= {
    .class_name = "DVB Sub Decoder",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 1593 of file dvbsubdec.c.

AVCodec ff_dvbsub_decoder

Initial value:

= {
    .name           = "dvbsub",
    .long_name      = NULL_IF_CONFIG_SMALL("DVB subtitles"),
    .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,
    .priv_class     = &dvbsubdec_class,
}

Definition at line 1600 of file dvbsubdec.c.