svcdsub.c File Reference

Include dependency graph for svcdsub.c:

Data Structures
struct	decoder_sys_t
Defines
#define	DEBUG_TEXT   N_("Enable debug")
#define	DEBUG_LONGTEXT
#define	DECODE_DBG_CALL   1
#define	DECODE_DBG_PACKET   2
#define	GETINT16(p)   ( (p[0] << 8) + p[1] ) ; p +=2;
#define	GETINT32(p)
#define	DECODE_DEBUG   1
#define	dbg_print(mask, s, args...)
#define	SPU_HEADER_LEN   5
Enumerations
enum	packet_state_t { SUBTITLE_BLOCK_EMPTY = 0, SUBTITLE_BLOCK_PARTIAL = 1, SUBTITLE_BLOCK_COMPLETE = 2 }
Functions
static int	DecoderOpen (vlc_object_t *)
static int	PacketizerOpen (vlc_object_t *)
static void	DecoderClose (vlc_object_t *)
int	vlc_entry__main (module_t *p_module)
const char *	vlc_entry_license__main (void)
static subpicture_t *	Decode (decoder_t *, block_t **)
static block_t *	Packetize (decoder_t *, block_t **)
static block_t *	Reassemble (decoder_t *, block_t *)
static void	ParseHeader (decoder_t *, block_t *)
static subpicture_t *	DecodePacket (decoder_t *, block_t *)
static void	SVCDSubRenderImage (decoder_t *, block_t *, subpicture_region_t *)

---

Define Documentation

#define dbg_print	(	mask,
		s,
		args...		)

Value:

if (p_sys && p_sys->i_debug & mask) \
     msg_Dbg(p_dec, "%s: "s, __func__ , ##args)

#define DEBUG_LONGTEXT

Value:

N_("This integer when viewed in binary is a debugging mask\n" \
    "calls                 1\n" \
    "packet assembly info  2\n" )

#define DEBUG_TEXT   N_("Enable debug")

#define DECODE_DBG_CALL   1

Referenced by Decode(), and DecoderOpen().

#define DECODE_DBG_PACKET   2

Referenced by ParseHeader(), and Reassemble().

#define DECODE_DEBUG   1

#define GETINT16

(

p

)

( (p[0] << 8) + p[1] ) ; p +=2;

Referenced by ParseHeader(), and Reassemble().

#define GETINT32

(

p

)

Value:

( (p[0] << 24) +  (p[1] << 16) +    \
                      (p[2] <<  8) +  (p[3]) ) ; p += 4;

Referenced by ParseHeader().

#define SPU_HEADER_LEN   5

---

Enumeration Type Documentation

enum packet_state_t

Enumerator:

SUBTITLE_BLOCK_EMPTY
SUBTITLE_BLOCK_PARTIAL
SUBTITLE_BLOCK_COMPLETE

---

Function Documentation

static subpicture_t * Decode	(	decoder_t *	p_dec,
		block_t **	pp_block
	)			[static]

References dbg_print, DECODE_DBG_CALL, DecodePacket(), decoder_t::p_sys, p_sys, and Reassemble().

static subpicture_t * DecodePacket	(	decoder_t *	p_dec,
		block_t *	p_data
	)			[static]

The video on which the subtitle sits, is scaled, probably 4:3. However subtitle bitmaps assume an 1:1 aspect ratio.

FIXME: We should get the video aspect ratio from somewhere. Two candidates are the video and the other possibility would be the access module.

References subpicture_t::b_ephemer, decoder_DeleteSubpicture(), decoder_NewSubpicture(), i, video_format_t::i_chroma, decoder_sys_t::i_duration, video_palette_t::i_entries, video_format_t::i_height, decoder_sys_t::i_height, block_t::i_pts, video_format_t::i_sar_den, video_format_t::i_sar_num, subpicture_t::i_start, subpicture_t::i_stop, video_format_t::i_visible_height, video_format_t::i_visible_width, video_format_t::i_width, decoder_sys_t::i_width, subpicture_region_t::i_x, video_format_t::i_x_offset, decoder_sys_t::i_x_start, subpicture_region_t::i_y, video_format_t::i_y_offset, decoder_sys_t::i_y_start, msg_Err, decoder_sys_t::p_palette, video_format_t::p_palette, subpicture_t::p_region, decoder_t::p_sys, p_sys, video_palette_t::palette, subpicture_region_New(), SVCDSubRenderImage(), and VLC_CODEC_YUVP.

void DecoderClose

(

vlc_object_t *

p_this

)

[static]

References block_ChainRelease(), decoder_sys_t::p_spu, decoder_t::p_sys, and p_sys.

static int DecoderOpen

(

vlc_object_t *

p_this

)

[static]

References dbg_print, Decode(), DECODE_DBG_CALL, es_format_Init(), decoder_t::fmt_in, decoder_t::fmt_out, es_format_t::i_codec, decoder_sys_t::i_debug, decoder_sys_t::i_image, decoder_sys_t::i_state, decoder_sys_t::p_spu, decoder_t::p_sys, p_sys, Packetize(), decoder_t::pf_decode_sub, decoder_t::pf_packetize, SPU_ES, SUBTITLE_BLOCK_EMPTY, var_InheritInteger, VLC_CODEC_OGT, VLC_EGENERIC, VLC_ENOMEM, and VLC_SUCCESS.

static block_t * Packetize	(	decoder_t *	p_dec,
		block_t **	pp_block
	)			[static]

References block_t::i_dts, block_t::i_length, block_t::i_pts, and Reassemble().

static int PacketizerOpen

(

vlc_object_t *

p_this

)

[static]

References DecoderOpen(), VLC_EGENERIC, and VLC_SUCCESS.

static void ParseHeader	(	decoder_t *	p_dec,
		block_t *	p_block
	)			[static]

References DECODE_DBG_PACKET, GETINT16, GETINT32, i, decoder_sys_t::i_debug, decoder_sys_t::i_duration, decoder_sys_t::i_height, decoder_sys_t::i_image_length, decoder_sys_t::i_image_offset, decoder_sys_t::i_spu_size, decoder_sys_t::i_width, decoder_sys_t::i_x_start, decoder_sys_t::i_y_start, decoder_sys_t::metadata_length, msg_Dbg, block_t::p_buffer, decoder_sys_t::p_palette, decoder_t::p_sys, p_sys, and decoder_sys_t::second_field_offset.

static block_t * Reassemble	(	decoder_t *	p_dec,
		block_t *	p_block
	)			[static]

References block_ChainAppend(), block_ChainGather(), block_Release(), dbg_print, DECODE_DBG_PACKET, FIND_PARENT, GETINT16, block_t::i_buffer, decoder_sys_t::i_image, vlc_value_t::i_int, decoder_sys_t::i_packet, decoder_sys_t::i_spu_size, decoder_sys_t::i_state, msg_Dbg, msg_Warn, block_t::p_buffer, decoder_sys_t::p_spu, decoder_t::p_sys, p_sys, ParseHeader(), SPU_HEADER_LEN, SUBTITLE_BLOCK_COMPLETE, SUBTITLE_BLOCK_EMPTY, SUBTITLE_BLOCK_PARTIAL, var_Get, vlc_object_find, VLC_OBJECT_INPUT, and vlc_object_release.

static void SVCDSubRenderImage	(	decoder_t *	p_dec,
		block_t *	p_data,
		subpicture_region_t *	p_region
	)			[static]

References __MIN, bs_align(), bs_init(), bs_read(), block_t::i_buffer, i_color, i_column, decoder_sys_t::i_height, decoder_sys_t::i_image_offset, decoder_sys_t::i_width, block_t::p_buffer, subpicture_region_t::p_picture, decoder_t::p_sys, p_sys, and decoder_sys_t::second_field_offset.

Referenced by DecodePacket().

int vlc_entry__main

(

module_t *

p_module

)

const char* vlc_entry_license__main

(

void

)