vlc_block.h File Reference

Include dependency graph for vlc_block.h:

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Data Structures
struct	block_t
Defines
#define	VLC_BLOCK_H   1
#define	BLOCK_FLAG_DISCONTINUITY   0x0001
	The content doesn't follow the last block, or is probably broken.
#define	BLOCK_FLAG_TYPE_I   0x0002
	Intra frame.
#define	BLOCK_FLAG_TYPE_P   0x0004
	Inter frame with backward reference only.
#define	BLOCK_FLAG_TYPE_B   0x0008
	Inter frame with backward and forward reference.
#define	BLOCK_FLAG_TYPE_PB   0x0010
	For inter frame when you don't know the real type.
#define	BLOCK_FLAG_HEADER   0x0020
	Warn that this block is a header one.
#define	BLOCK_FLAG_END_OF_FRAME   0x0040
	This is the last block of the frame.
#define	BLOCK_FLAG_NO_KEYFRAME   0x0080
	This is not a key frame for bitrate shaping.
#define	BLOCK_FLAG_CLOCK   0x0200
	This block contains a clock reference.
#define	BLOCK_FLAG_SCRAMBLED   0x0400
	This block is scrambled.
#define	BLOCK_FLAG_PREROLL   0x0800
	This block has to be decoded but not be displayed.
#define	BLOCK_FLAG_CORRUPTED   0x1000
	This block is corrupted and/or there is data loss.
#define	BLOCK_FLAG_PRIVATE_MASK   0xffff0000
#define	BLOCK_FLAG_PRIVATE_SHIFT   16
#define	block_New(dummy, size)   block_Alloc(size)
Typedefs
typedef block_sys_t	block_sys_t
typedef void(*)	block_free_t (block_t *)
Functions
void	block_Init (block_t *, void *, size_t)
block_t *	block_Alloc (size_t)
block_t *	block_Realloc (block_t *, ssize_t i_pre, size_t i_body)
static block_t *	block_Duplicate (block_t *p_block)
static void	block_Release (block_t *p_block)
block_t *	block_mmap_Alloc (void *addr, size_t length)
block_t *	block_File (int fd)
	Loads a file into a block of memory.
static void	block_ChainAppend (block_t **pp_list, block_t *p_block)
static void	block_ChainLastAppend (block_t ***ppp_last, block_t *p_block)
static void	block_ChainRelease (block_t *p_block)
static size_t	block_ChainExtract (block_t *p_list, void *p_data, size_t i_max)
static block_t *	block_ChainGather (block_t *p_list)
block_fifo_t *	block_FifoNew (void)
void	block_FifoRelease (block_fifo_t *)
void	block_FifoEmpty (block_fifo_t *)
size_t	block_FifoPut (block_fifo_t *, block_t *)
void	block_FifoWake (block_fifo_t *)
block_t *	block_FifoGet (block_fifo_t *)
block_t *	block_FifoShow (block_fifo_t *)
size_t	block_FifoSize (const block_fifo_t *p_fifo)
size_t	block_FifoCount (const block_fifo_t *p_fifo)

---

Define Documentation

#define BLOCK_FLAG_CLOCK   0x0200

This block contains a clock reference.

#define BLOCK_FLAG_CORRUPTED   0x1000

This block is corrupted and/or there is data loss.

#define BLOCK_FLAG_DISCONTINUITY   0x0001

The content doesn't follow the last block, or is probably broken.

#define BLOCK_FLAG_END_OF_FRAME   0x0040

This is the last block of the frame.

#define BLOCK_FLAG_HEADER   0x0020

Warn that this block is a header one.

#define BLOCK_FLAG_NO_KEYFRAME   0x0080

This is not a key frame for bitrate shaping.

#define BLOCK_FLAG_PREROLL   0x0800

This block has to be decoded but not be displayed.

#define BLOCK_FLAG_PRIVATE_MASK   0xffff0000

#define BLOCK_FLAG_PRIVATE_SHIFT   16

#define BLOCK_FLAG_SCRAMBLED   0x0400

This block is scrambled.

#define BLOCK_FLAG_TYPE_B   0x0008

Inter frame with backward and forward reference.

#define BLOCK_FLAG_TYPE_I   0x0002

Intra frame.

#define BLOCK_FLAG_TYPE_P   0x0004

Inter frame with backward reference only.

#define BLOCK_FLAG_TYPE_PB   0x0010

For inter frame when you don't know the real type.

#define block_New	(	dummy,
		size		)	block_Alloc(size)

#define VLC_BLOCK_H   1

---

Typedef Documentation

typedef void(*) block_free_t(block_t *)

typedef struct block_sys_t block_sys_t

---

Function Documentation

block_t* block_Alloc

(

size_t

)

static void block_ChainAppend	(	block_t **	pp_list,
		block_t *	p_block
	)			[inline, static]

static size_t block_ChainExtract	(	block_t *	p_list,
		void *	p_data,
		size_t	i_max
	)			[static]

static block_t* block_ChainGather

(

block_t *

p_list

)

[inline, static]

static void block_ChainLastAppend	(	block_t ***	ppp_last,
		block_t *	p_block
	)			[inline, static]

static void block_ChainRelease

(

block_t *

p_block

)

[inline, static]

static block_t* block_Duplicate

(

block_t *

p_block

)

[inline, static]

size_t block_FifoCount

(

const block_fifo_t *

p_fifo

)

void block_FifoEmpty

(

block_fifo_t *

)

block_t* block_FifoGet

(

block_fifo_t *

)

block_fifo_t* block_FifoNew

(

void

)

size_t block_FifoPut	(	block_fifo_t *	,
		block_t *
	)

void block_FifoRelease

(

block_fifo_t *

)

block_t* block_FifoShow

(

block_fifo_t *

)

size_t block_FifoSize

(

const block_fifo_t *

p_fifo

)

void block_FifoWake

(

block_fifo_t *

)

block_t* block_File

(

int

fd

)

Loads a file into a block of memory.

If possible a private file mapping is created. Otherwise, the file is read normally. On 32-bits platforms, this function will not work for very large files, due to memory space constraints.

Parameters:

fd

file descriptor to load from

Returns:

a new block with the file content at p_buffer, and file length at i_buffer (release it with block_Release()), or NULL upon error (see errno).

void block_Init	(	block_t *	,
		void *	,
		size_t
	)

block_t* block_mmap_Alloc	(	void *	addr,
		size_t	length
	)

block_t* block_Realloc	(	block_t *	,
		ssize_t	i_pre,
		size_t	i_body
	)

static void block_Release

(

block_t *

p_block

)

[inline, static]

---