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/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2002 Michael David Adams.
* All rights reserved.
*/
/* __START_OF_JASPER_LICENSE__
*
* JasPer License Version 2.0
*
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
* Copyright (c) 2001-2003 Michael David Adams
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __END_OF_JASPER_LICENSE__
*/
/*
* Quadrature Mirror-Image Filter Bank (QMFB) Routines
*
* $Id$
*/
#ifndef JPC_QMFB_H
#define JPC_QMFB_H
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jasper/jas_seq.h"
/******************************************************************************\
* Constants.
\******************************************************************************/
/* The maximum number of channels for a QMF bank. */
#define JPC_QMFB1D_MAXCHANS 2
/* Select reversible integer-to-integer mode. */
#define JPC_QMFB1D_RITIMODE 1
/* Vertical filtering. */
#define JPC_QMFB1D_VERT 0x10000
/* QMFB IDs. */
#define JPC_QMFB1D_FT 1 /* 5/3 */
#define JPC_QMFB1D_NS 2 /* 9/7 */
/******************************************************************************\
* Types.
\******************************************************************************/
/* Forward declaration. */
struct jpc_qmfb1dops_s;
/* Band information. */
typedef struct {
/* The starting index for the band in the downsampled domain. */
int start;
/* The ending index for the band in the downsampled domain. */
int end;
/* The location of the start of the band. */
int locstart;
/* The location of the end of the band. */
int locend;
} jpc_qmfb1dband_t;
/* QMF bank */
typedef struct {
/* The operations for this QMFB. */
struct jpc_qmfb1dops_s *ops;
} jpc_qmfb1d_t;
/* QMFB operations. */
typedef struct jpc_qmfb1dops_s {
/* The number of channels in the QMFB. */
int (*getnumchans)(jpc_qmfb1d_t *qmfb);
/* Get the analysis filters for this QMFB. */
int (*getanalfilters)(jpc_qmfb1d_t *qmfb, int len, jas_seq2d_t **filters);
/* Get the synthesis filters for this QMFB. */
int (*getsynfilters)(jpc_qmfb1d_t *qmfb, int len, jas_seq2d_t **filters);
/* Do analysis. */
void (*analyze)(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);
/* Do synthesis. */
void (*synthesize)(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);
} jpc_qmfb1dops_t;
/******************************************************************************\
* Functions.
\******************************************************************************/
/* Create a QMFB from a QMFB ID. */
jpc_qmfb1d_t *jpc_qmfb1d_make(int qmfbid);
/* Create a copy of a QMFB. */
jpc_qmfb1d_t *jpc_qmfb1d_copy(jpc_qmfb1d_t *qmfb);
/* Destroy a QMFB. */
void jpc_qmfb1d_destroy(jpc_qmfb1d_t *qmfb);
/* Get the number of channels for a QMFB. */
int jpc_qmfb1d_getnumchans(jpc_qmfb1d_t *qmfb);
/* Get the analysis filters for a QMFB. */
int jpc_qmfb1d_getanalfilters(jpc_qmfb1d_t *qmfb, int len,
jas_seq2d_t **filters);
/* Get the synthesis filters for a QMFB. */
int jpc_qmfb1d_getsynfilters(jpc_qmfb1d_t *qmfb, int len,
jas_seq2d_t **filters);
/* Get the bands for a QMFB. */
void jpc_qmfb1d_getbands(jpc_qmfb1d_t *qmfb, int flags, uint_fast32_t xstart,
uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend, int maxbands,
int *numbandsptr, jpc_qmfb1dband_t *bands);
/* Perform analysis. */
void jpc_qmfb1d_analyze(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);
/* Perform synthesis. */
void jpc_qmfb1d_synthesize(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);
#endif
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