graphics_processor.c File Reference

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Classes
struct	graphics_processor_s
Enumerations
enum	pgs_segment_type_e {   PGS_PALETTE = 0x14, PGS_OBJECT = 0x15, PGS_PG_COMPOSITION = 0x16, PGS_WINDOW = 0x17,   PGS_IG_COMPOSITION = 0x18, PGS_END_OF_DISPLAY = 0x80 }
Functions
void	pg_display_set_free (PG_DISPLAY_SET **s)
static PES_BUFFER *	_find_segment_by_idv (PES_BUFFER *p, uint8_t seg_type, unsigned idv_pos, uint8_t *idv, unsigned idv_len)
static void	_join_fragments (PES_BUFFER *p1, PES_BUFFER *p2, int data_pos)
static int	_join_segment_fragments (struct pes_buffer_s *p)
static int	_decode_wds (PG_DISPLAY_SET *s, BITBUFFER *bb, PES_BUFFER *p)
static int	_decode_ods (PG_DISPLAY_SET *s, BITBUFFER *bb, PES_BUFFER *p)
static int	_decode_pds (PG_DISPLAY_SET *s, BITBUFFER *bb, PES_BUFFER *p)
static void	_check_epoch_start (PG_DISPLAY_SET *s)
static int	_decode_pcs (PG_DISPLAY_SET *s, BITBUFFER *bb, PES_BUFFER *p)
static int	_decode_ics (PG_DISPLAY_SET *s, BITBUFFER *bb, PES_BUFFER *p)
static int	_decode_segment (PG_DISPLAY_SET *s, PES_BUFFER *p)
int	graphics_processor_decode_pes (PG_DISPLAY_SET **s, PES_BUFFER **p, int64_t stc)
	Decode data from MPEG-PES input stream.
GRAPHICS_PROCESSOR *	graphics_processor_init (void)
void	graphics_processor_free (GRAPHICS_PROCESSOR **p)
int	graphics_processor_decode_ts (GRAPHICS_PROCESSOR *p, PG_DISPLAY_SET **s, uint16_t pid, uint8_t *unit, unsigned num_units, int64_t stc)
	Decode data from MPEG-TS input stream.

---

Enumeration Type Documentation

enum pgs_segment_type_e

Enumerator:

PGS_PALETTE
PGS_OBJECT
PGS_PG_COMPOSITION
PGS_WINDOW
PGS_IG_COMPOSITION
PGS_END_OF_DISPLAY

Definition at line 42 of file graphics_processor.c.

---

Function Documentation

void pg_display_set_free

(

PG_DISPLAY_SET **

s

)

Definition at line 55 of file graphics_processor.c.

Referenced by _gc_reset().

static PES_BUFFER* _find_segment_by_idv	(	PES_BUFFER *	p,
		uint8_t	seg_type,
		unsigned	idv_pos,
		uint8_t *	idv,
		unsigned	idv_len
	)			[static]

Definition at line 76 of file graphics_processor.c.

Referenced by _join_segment_fragments().

static void _join_fragments	(	PES_BUFFER *	p1,
		PES_BUFFER *	p2,
		int	data_pos
	)			[static]

Definition at line 86 of file graphics_processor.c.

Referenced by _join_segment_fragments().

static int _join_segment_fragments

(

struct pes_buffer_s *

p

)

[static]

Definition at line 101 of file graphics_processor.c.

Referenced by graphics_processor_decode_pes().

static int _decode_wds	(	PG_DISPLAY_SET *	s,
		BITBUFFER *	bb,
		PES_BUFFER *	p
	)			[static]

Definition at line 167 of file graphics_processor.c.

Referenced by _decode_segment().

static int _decode_ods	(	PG_DISPLAY_SET *	s,
		BITBUFFER *	bb,
		PES_BUFFER *	p
	)			[static]

Definition at line 177 of file graphics_processor.c.

Referenced by _decode_segment().

static int _decode_pds	(	PG_DISPLAY_SET *	s,
		BITBUFFER *	bb,
		PES_BUFFER *	p
	)			[static]

Definition at line 211 of file graphics_processor.c.

Referenced by _decode_segment().

static void _check_epoch_start

(

PG_DISPLAY_SET *

s

)

[static]

Definition at line 253 of file graphics_processor.c.

Referenced by _decode_ics(), and _decode_pcs().

static int _decode_pcs	(	PG_DISPLAY_SET *	s,
		BITBUFFER *	bb,
		PES_BUFFER *	p
	)			[static]

Definition at line 275 of file graphics_processor.c.

Referenced by _decode_segment().

static int _decode_ics	(	PG_DISPLAY_SET *	s,
		BITBUFFER *	bb,
		PES_BUFFER *	p
	)			[static]

Definition at line 293 of file graphics_processor.c.

Referenced by _decode_segment().

static int _decode_segment	(	PG_DISPLAY_SET *	s,
		PES_BUFFER *	p
	)			[static]

Definition at line 311 of file graphics_processor.c.

Referenced by graphics_processor_decode_pes().

int graphics_processor_decode_pes	(	PG_DISPLAY_SET **	s,
		struct pes_buffer_s **	buf,
		int64_t	stc
	)

Decode data from MPEG-PES input stream.

Only segments where DTS <= STC are decoded. If STC < 0, all segments are immediately decoded to display set.

All decoded PES packets are removed from buffer.

Parameters:

	s	display set
	buf	data to decode
	stc	current playback time

Returns:

1 if display set was completed, 0 otherwise

Definition at line 351 of file graphics_processor.c.

Referenced by graphics_processor_decode_ts().

GRAPHICS_PROCESSOR* graphics_processor_init

(

void

)

Definition at line 412 of file graphics_processor.c.

Referenced by gc_decode_ts().

void graphics_processor_free

(

GRAPHICS_PROCESSOR **

p

)

Definition at line 419 of file graphics_processor.c.

Referenced by _gc_reset().

int graphics_processor_decode_ts	(	GRAPHICS_PROCESSOR *	p,
		PG_DISPLAY_SET **	s,
		uint16_t	pid,
		uint8_t *	unit,
		unsigned	num_units,
		int64_t	stc
	)

Decode data from MPEG-TS input stream.

Segments are queued and decoded when DTS <= STC. If STC < 0, all segments are immediately decoded to display set.

Parameters:

	p	GRAPHICS_PROCESSOR object
	s	display set
	pid	mpeg-ts PID to decode (HDMV IG/PG stream)
	unit	mpeg-ts data
	num_units	number of aligned units in data
	stc	current playback time

Returns:

1 if display set was completed, 0 otherwise

Definition at line 429 of file graphics_processor.c.

Referenced by gc_decode_ts().