xface.c File Reference

X-Face common data and utilities definition. More...

#include "libavutil/avassert.h"
#include "xface.h"

Go to the source code of this file.

Macros
#define	GEN(table)   dst[h] ^= (table[k>>3]>>(7-(k&7)))&1

Functions
void	ff_big_add (BigInt *b, uint8_t a)
	Add a to b storing the result in b.
void	ff_big_div (BigInt *b, uint8_t a, uint8_t *r)
	Divide b by a storing the result in b and the remainder in the word pointed to by r.
void	ff_big_mul (BigInt *b, uint8_t a)
	Multiply a by b storing the result in b.
void	ff_xface_generate_face (uint8_t *dst, uint8_t *const src)

Variables
const ProbRange	ff_xface_probranges_per_level [4][3]
const ProbRange	ff_xface_probranges_2x2 [16]
static const uint8_t	g_00 []
static const uint8_t	g_01 []
static const uint8_t	g_02 []
static const uint8_t	g_10 []
static const uint8_t	g_20 []
static const uint8_t	g_30 []
static const uint8_t	g_40 []
static const uint8_t	g_11 []
static const uint8_t	g_21 []
static const uint8_t	g_31 []
static const uint8_t	g_41 []
static const uint8_t	g_12 []
static const uint8_t	g_22 []
static const uint8_t	g_32 []
static const uint8_t	g_42 []

Detailed Description

X-Face common data and utilities definition.

Definition in file xface.c.

Macro Definition Documentation

#define GEN

(

table

)

dst[h] ^= (table[k>>3]>>(7-(k&7)))&1

Referenced by ff_xface_generate_face().

Function Documentation

void ff_big_add	(	BigInt *	b,
		uint8_t	a
	)

Add a to b storing the result in b.

Definition at line 31 of file xface.c.

Referenced by pop_integer(), push_integer(), and xface_decode_frame().

void ff_big_div	(	BigInt *	b,
		uint8_t	a,
		uint8_t *	r
	)

Divide b by a storing the result in b and the remainder in the word pointed to by r.

Definition at line 54 of file xface.c.

Referenced by pop_integer(), push_integer(), and xface_encode_frame().

void ff_big_mul	(	BigInt *	b,
		uint8_t	a
	)

Multiply a by b storing the result in b.

Definition at line 93 of file xface.c.

Referenced by pop_integer(), push_integer(), and xface_decode_frame().

void ff_xface_generate_face	(	uint8_t *	dst,
		uint8_t *const	src
	)

Definition at line 286 of file xface.c.

Referenced by xface_decode_frame(), and xface_encode_frame().

Variable Documentation

const ProbRange ff_xface_probranges_per_level[4][3]

Initial value:

= {
    
    { {  1, 255}, {251, 0}, {  4, 251} }, 
    { {  1, 255}, {200, 0}, { 55, 200} },
    { { 33, 223}, {159, 0}, { 64, 159} },
    { {131,   0}, {  0, 0}, {125, 131} }, 
}

Definition at line 129 of file xface.c.

Referenced by decode_block(), and encode_block().

const ProbRange ff_xface_probranges_2x2[16]

Initial value:

= {
    { 0,   0},  {38,   0}, {38,  38},  {13, 152},
    {38,  76},  {13, 165}, {13, 178},  { 6, 230},
    {38, 114},  {13, 191}, {13, 204},  { 6, 236},
    {13, 217},  { 6, 242}, { 5, 248},  { 3, 253},
}

Definition at line 137 of file xface.c.

Referenced by pop_greys(), and push_greys().

const uint8_t g_00[]

static

Definition at line 153 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_01[]

static

Initial value:

= {
    0x37, 0x73, 0x00, 0x19, 0x57, 0x7f, 0xf5, 0xfb, 0x70, 0x33,
    0xf0, 0xf9, 0x7f, 0xff, 0xff, 0xff,
}

Definition at line 208 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_02[]

static

Initial value:

= {
    0x50,
}

Definition at line 213 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_10[]

static

Initial value:

= {
    0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0xf3, 0x5f, 0x84, 0x04,
    0x17, 0x9f, 0x04, 0x23, 0x05, 0xff, 0x00, 0x00, 0x00, 0x02,
    0x03, 0x03, 0x33, 0xd7, 0x05, 0x03, 0x5f, 0x3f, 0x17, 0x33,
    0xff, 0xff, 0x00, 0x80, 0x02, 0x04, 0x12, 0x00, 0x11, 0x57,
    0x05, 0x25, 0x05, 0x03, 0x35, 0xbf, 0x9f, 0xff, 0x07, 0x6f,
    0x20, 0x40, 0x17, 0x06, 0xfa, 0xe8, 0x01, 0x07, 0x1f, 0x9f,
    0x1f, 0xff, 0xff, 0xff,
}

Definition at line 217 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_20[]

static

Initial value:

= {
    0x04, 0x00, 0x01, 0x01, 0x43, 0x2e, 0xff, 0x3f,
}

Definition at line 227 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_30[]

static

Initial value:

= {
    0x11, 0x11, 0x11, 0x11, 0x51, 0x11, 0x13, 0x11, 0x11, 0x11,
    0x13, 0x11, 0x11, 0x11, 0x33, 0x11, 0x13, 0x11, 0x13, 0x13,
    0x13, 0x13, 0x31, 0x31, 0x11, 0x01, 0x11, 0x11, 0x71, 0x11,
    0x11, 0x75,
}

Definition at line 231 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_40[]

static

Initial value:

= {
    0x00, 0x0f, 0x00, 0x09, 0x00, 0x0d, 0x00, 0x0d, 0x00, 0x0f,
    0x00, 0x4e, 0xe4, 0x0d, 0x10, 0x0f, 0x00, 0x0f, 0x44, 0x4f,
    0x00, 0x1e, 0x0f, 0x0f, 0xae, 0xaf, 0x45, 0x7f, 0xef, 0xff,
    0x0f, 0xff, 0x00, 0x09, 0x01, 0x11, 0x00, 0x01, 0x1c, 0xdd,
    0x00, 0x15, 0x00, 0xff, 0x00, 0x10, 0x00, 0xfd, 0x00, 0x0f,
    0x4f, 0x5f, 0x3d, 0xff, 0xff, 0xff, 0x4f, 0xff, 0x1c, 0xff,
    0xdf, 0xff, 0x8f, 0xff, 0x00, 0x0d, 0x00, 0x00, 0x00, 0x15,
    0x01, 0x07, 0x00, 0x01, 0x02, 0x1f, 0x01, 0x11, 0x05, 0x7f,
    0x00, 0x1f, 0x41, 0x57, 0x1f, 0xff, 0x05, 0x77, 0x0d, 0x5f,
    0x4d, 0xff, 0x4f, 0xff, 0x0f, 0xff, 0x00, 0x00, 0x02, 0x05,
    0x00, 0x11, 0x05, 0x7d, 0x10, 0x15, 0x2f, 0xff, 0x40, 0x50,
    0x0d, 0xfd, 0x04, 0x0f, 0x07, 0x1f, 0x07, 0x7f, 0x0f, 0xbf,
    0x0d, 0x7f, 0x0f, 0xff, 0x4d, 0x7d, 0x0f, 0xff,
}

Definition at line 238 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_11[]

static

Initial value:

= {
    0x01, 0x13, 0x03, 0x7f,
}

Definition at line 254 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_21[]

static

Initial value:

= {
    0x17,
}

Definition at line 258 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_31[]

static

Initial value:

= {
    0x55, 0x57, 0x57, 0x7f,
}

Definition at line 262 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_41[]

static

Initial value:

= {
    0x01, 0x01, 0x01, 0x1f, 0x03, 0x1f, 0x3f, 0xff,
}

Definition at line 266 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_12[]

static

Initial value:

= {
    0x40,
}

Definition at line 270 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_22[]

static

Initial value:

= {
    0x00,
}

Definition at line 274 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_32[]

static

Initial value:

= {
    0x10,
}

Definition at line 278 of file xface.c.

Referenced by ff_xface_generate_face().

const uint8_t g_42[]

static

Initial value:

= {
    0x10,
}

Definition at line 282 of file xface.c.

Referenced by ff_xface_generate_face().