libavcodec/dvdsubdec.c File Reference

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

Go to the source code of this file.

Data Structures
struct	DVDSubContext
Defines
#define	READ_OFFSET(a)   (big_offsets ? AV_RB32(a) : AV_RB16(a))
Functions
static void	yuv_a_to_rgba (const uint8_t *ycbcr, const uint8_t *alpha, uint32_t *rgba, int num_values)
static int	decode_run_2bit (GetBitContext *gb, int *color)
static int	decode_run_8bit (GetBitContext *gb, int *color)
static int	decode_rle (uint8_t *bitmap, int linesize, int w, int h, const uint8_t *buf, int start, int buf_size, int is_8bit)
static void	guess_palette (uint32_t *rgba_palette, DVDSubContext *ctx, uint32_t subtitle_color)
static int	decode_dvd_subtitles (DVDSubContext *ctx, AVSubtitle *sub_header, const uint8_t *buf, int buf_size)
static int	is_transp (const uint8_t *buf, int pitch, int n, const uint8_t *transp_color)
static int	find_smallest_bounding_rectangle (AVSubtitle *s)
static int	dvdsub_decode (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static int	dvdsub_init (AVCodecContext *avctx)
Variables
AVCodec	ff_dvdsub_decoder

---

Define Documentation

#define READ_OFFSET

(

a

)

(big_offsets ? AV_RB32(a) : AV_RB16(a))

Definition at line 184 of file dvdsubdec.c.

Referenced by decode_dvd_subtitles().

---

Function Documentation

static int decode_dvd_subtitles	(	DVDSubContext *	ctx,
		AVSubtitle *	sub_header,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 186 of file dvdsubdec.c.

Referenced by dvdsub_decode().

static int decode_rle	(	uint8_t *	bitmap,
		int	linesize,
		int	w,
		int	h,
		const uint8_t *	buf,
		int	start,
		int	buf_size,
		int	is_8bit
	)			[static]

Definition at line 90 of file dvdsubdec.c.

Referenced by decode_dvd_subtitles(), display_end_segment(), and mss2_decode_frame().

static int decode_run_2bit	(	GetBitContext *	gb,
		int *	color
	)			[static]

Definition at line 54 of file dvdsubdec.c.

Referenced by decode_rle().

static int decode_run_8bit	(	GetBitContext *	gb,
		int *	color
	)			[static]

Definition at line 68 of file dvdsubdec.c.

Referenced by decode_rle().

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

Definition at line 483 of file dvdsubdec.c.

static int dvdsub_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 516 of file dvdsubdec.c.

static int find_smallest_bounding_rectangle

(

AVSubtitle *

s

)

[static]

Definition at line 399 of file dvdsubdec.c.

Referenced by dvdsub_decode().

static void guess_palette	(	uint32_t *	rgba_palette,
		DVDSubContext *	ctx,
		uint32_t	subtitle_color
	)			[static]

Definition at line 127 of file dvdsubdec.c.

Referenced by decode_dvd_subtitles().

static int is_transp	(	const uint8_t *	buf,
		int	pitch,
		int	n,
		const uint8_t *	transp_color
	)			[static]

Definition at line 386 of file dvdsubdec.c.

Referenced by find_smallest_bounding_rectangle().

static void yuv_a_to_rgba	(	const uint8_t *	ycbcr,
		const uint8_t *	alpha,
		uint32_t *	rgba,
		int	num_values
	)			[static]

Definition at line 37 of file dvdsubdec.c.

Referenced by decode_dvd_subtitles().

---

Variable Documentation

AVCodec ff_dvdsub_decoder

Initial value:

 {
    .name           = "dvdsub",
    .type           = AVMEDIA_TYPE_SUBTITLE,
    .id             = AV_CODEC_ID_DVD_SUBTITLE,
    .priv_data_size = sizeof(DVDSubContext),
    .init           = dvdsub_init,
    .decode         = dvdsub_decode,
    .long_name      = NULL_IF_CONFIG_SMALL("DVD subtitles"),
}

Definition at line 567 of file dvdsubdec.c.