quant_matrix.cpp File Reference

#include "quant_matrix.h"

Include dependency graph for quant_matrix.cpp:

Macros
#define	FIX(X)   (((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1))
#define	FIXL(X)   ((1UL << 16) / (X) - 1)

Functions
const byte *	get_default_intra_matrix ()
const byte *	get_default_inter_matrix ()
void	set_intra_matrix (dword *mpeg_quant_matrices, const byte *matrix)
void	set_inter_matrix (dword *mpeg_quant_matrices, const byte *matrix)
void	init_mpeg_matrix (dword *mpeg_quant_matrices)

Variables
static const byte	default_intra_matrix [64]
static const byte	default_inter_matrix [64]

Macro Definition Documentation

#define FIX

(

X

)

(((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1))

#define FIXL

(

X

)

((1UL << 16) / (X) - 1)

Function Documentation

const byte* get_default_intra_matrix

(

void

)

Here is the caller graph for this function:

const byte* get_default_inter_matrix

(

void

)

Here is the caller graph for this function:

void set_intra_matrix	(	dword *	mpeg_quant_matrices,
		const byte *	matrix
	)

Here is the caller graph for this function:

void set_inter_matrix	(	dword *	mpeg_quant_matrices,
		const byte *	matrix
	)

Here is the caller graph for this function:

void init_mpeg_matrix

(

dword *

mpeg_quant_matrices

)

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

const byte default_intra_matrix[64]

static

Initial value:

= {
         8, 17, 18, 19, 21, 23, 25, 27,
        17, 18, 19, 21, 23, 25, 27, 28,
        20, 21, 22, 23, 24, 26, 28, 30,
        21, 22, 23, 24, 26, 28, 30, 32,
        22, 23, 24, 26, 28, 30, 32, 35,
        23, 24, 26, 28, 30, 32, 35, 38,
        25, 26, 28, 30, 32, 35, 38, 41,
        27, 28, 30, 32, 35, 38, 41, 45
}

const byte default_inter_matrix[64]

static

Initial value:

= {
        16, 17, 18, 19, 20, 21, 22, 23,
        17, 18, 19, 20, 21, 22, 23, 24,
        18, 19, 20, 21, 22, 23, 24, 25,
        19, 20, 21, 22, 23, 24, 26, 27,
        20, 21, 22, 23, 25, 26, 27, 28,
        21, 22, 23, 24, 26, 27, 28, 30,
        22, 23, 24, 26, 27, 28, 30, 31,
        23, 24, 25, 27, 28, 30, 31, 33
}