ref: de5fb20b98c830cf38e08058c4df874c9ab6f816
dir: jp2/jpc_qmfb.h
/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2004 Michael David Adams.
* All rights reserved.
*/
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* Copyright (c) 2001-2006 Michael David Adams
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*/
/*
* Quadrature Mirror-Image Filter Bank (QMFB) Routines
*
* $Id$
*/
#ifndef JPC_QMFB_H
#define JPC_QMFB_H
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jpc_fix.h"
/******************************************************************************\
* Constants.
\******************************************************************************/
/* QMFB IDs. */
#define JPC_QMFB1D_FT 1 /* 5/3 */
#define JPC_QMFB1D_NS 2 /* 9/7 */
/******************************************************************************\
* Types.
\******************************************************************************/
/******************************************************************************\
* Functions.
\******************************************************************************/
#if !defined(JPC_QMFB_COLGRPSIZE)
/* The number of columns to group together during the vertical processing
stage of the wavelet transform. */
/* The default value for this parameter is probably not optimal for
any particular platform. Hopefully, it is not too unreasonable, however. */
#define JPC_QMFB_COLGRPSIZE 16
#endif
typedef struct {
int (*analyze)(jpc_fix_t *, int, int, int, int, int);
int (*synthesize)(jpc_fix_t *, int, int, int, int, int);
const double *lpenergywts;
const double *hpenergywts;
} jpc_qmfb2d_t;
extern const jpc_qmfb2d_t jpc_ft_qmfb2d;
extern const jpc_qmfb2d_t jpc_ns_qmfb2d;
#endif