libavcodec/dvbsubdec.c File Reference

#include "avcodec.h"
#include "dsputil.h"
#include "bitstream.h"
#include "colorspace.h"

Go to the source code of this file.

Data Structures
struct	DVBSubCLUT
struct	DVBSubObjectDisplay
struct	DVBSubObject
struct	DVBSubRegionDisplay
struct	DVBSubRegion
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_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_state (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)
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)
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)
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 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, const uint8_t *buf, int buf_size)
Variables
static DVBSubCLUT	default_clut
AVCodec	dvbsub_decoder

---

Define Documentation

#define cm   (ff_cropTbl + MAX_NEG_CROP)

Definition at line 36 of file dvbsubdec.c.

Referenced by add_pixels_clamped2_c(), add_pixels_clamped4_c(), add_pixels_clamped_c(), cavs_idct8_add_c(), deinterlace_line(), deinterlace_line_inplace(), ff_bfin_vp3_idct_put(), ff_h264_idct8_add_c(), ff_h264_idct8_dc_add_c(), ff_h264_idct_dc_add_c(), ff_idct_put_mlib(), ff_jref_idct1_add(), ff_jref_idct1_put(), glue(), h_block_filter(), idct(), idct4col_add(), idct4col_put(), idct_add(), idct_internal(), idct_put(), idctSparseColAdd(), idctSparseColPut(), img_convert_init(), intra_pred_plane(), mp_yuv_to_rgb(), pred16x16_plane_compat_c(), pred8x8_plane_c(), Process(), put_pixels_clamped2_c(), put_pixels_clamped4_c(), put_pixels_clamped_c(), rv30_weak_loop_filter(), rv40_weak_loop_filter(), svq3_add_idct_c(), v_block_filter(), vc1_filter_line(), vc1_inv_trans_4x4_c(), vc1_inv_trans_4x8_c(), vc1_inv_trans_8x4_c(), wmv2_mspel8_h_lowpass(), wmv2_mspel8_v_lowpass(), and yuv_a_to_rgba().

#define DVBSUB_CLUT_SEGMENT   0x12

Definition at line 32 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_DISPLAY_SEGMENT   0x80

Definition at line 34 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_OBJECT_SEGMENT   0x13

Definition at line 33 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_PAGE_SEGMENT   0x10

Definition at line 30 of file dvbsubdec.c.

Referenced by dvbsub_decode().

#define DVBSUB_REGION_SEGMENT   0x11

Definition at line 31 of file dvbsubdec.c.

Referenced by dvbsub_decode().

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

Definition at line 154 of file dvbsubdec.c.

Referenced by dvbsub_init_decoder(), and dvbsub_parse_clut_segment().

---

Function Documentation

static void delete_region_display_list	(	DVBSubContext *	ctx,
		DVBSubRegion *	region
	)			[static]

Definition at line 266 of file dvbsubdec.c.

Referenced by delete_state(), and dvbsub_parse_region_segment().

static void delete_state

(

DVBSubContext *

ctx

)

[static]

Definition at line 312 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 415 of file dvbsubdec.c.

static int dvbsub_decode	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 1346 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 1269 of file dvbsubdec.c.

Referenced by dvbsub_decode().

static av_cold int dvbsub_init_decoder

(

AVCodecContext *

avctx

)

[static]

Definition at line 342 of file dvbsubdec.c.

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

Definition at line 895 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 836 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 1101 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 717 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 985 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
	)			[static]

Definition at line 432 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
	)			[static]

Definition at line 537 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
	)			[static]

Definition at line 658 of file dvbsubdec.c.

Referenced by dvbsub_parse_pixel_data_block().

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

Definition at line 244 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 233 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 255 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 dvbsub_decoder

Initial value:

 {
    "dvbsub",
    CODEC_TYPE_SUBTITLE,
    CODEC_ID_DVB_SUBTITLE,
    sizeof(DVBSubContext),
    dvbsub_init_decoder,
    NULL,
    dvbsub_close_decoder,
    dvbsub_decode,
    .long_name = NULL_IF_CONFIG_SMALL("DVB subtitles"),
}

Definition at line 1427 of file dvbsubdec.c.