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context.h File Reference

Definition of Context class. More...

#include <cstdlib>
#include "defs.h"
#include "contextbase.h"

Go to the source code of this file.

Compounds

class Context

Context structure for arithmetic coding. More...

Defines

#define BACK(i)   ((i) & ((i) - 1))

Add the end '1' bit of a binary number using two's complement arithmetic.

#define FORW(i)   ((i) + ((i) & - (i)))

Remove the end '1' bit of a binary number using two's complement arithmetic.

#define MAX_FREQUENCY   ((FreqValue) 1 << F_BITS)

Maximum frequency value.

#define MIN_INCR   1

Minimum increment value.

#define MOST_PROB_AT_END   1

Put most probable symbol at end of range (for more accurate approximations). More...

Detailed Description

Definition of Context class.

This file contains the definition of Context class.

Definition in file context.h.

Define Documentation

#define MOST_PROB_AT_END 1

Put most probable symbol at end of range (for more accurate approximations).

This option influences the compressed data, but is not recorded in the data stream. It is for experimental purposes and it is recommended that it is left #defined.
Definition at line 95 of file context.h.

Generated on Wed Feb 5 10:43:03 2003 for Exalt by

Compounds
class	Context
	Context structure for arithmetic coding. More...
Defines
#define	BACK(i) ((i) & ((i) - 1))
	Add the end '1' bit of a binary number using two's complement arithmetic.
#define	FORW(i) ((i) + ((i) & - (i)))
	Remove the end '1' bit of a binary number using two's complement arithmetic.
#define	MAX_FREQUENCY ((FreqValue) 1 << F_BITS)
	Maximum frequency value.
#define	MIN_INCR 1
	Minimum increment value.
#define	MOST_PROB_AT_END 1
	Put most probable symbol at end of range (for more accurate approximations). More...