diff options
Diffstat (limited to 'osframework/source/ImageLib/jpeg2000/jpc_dec.h')
| -rw-r--r-- | osframework/source/ImageLib/jpeg2000/jpc_dec.h | 745 |
1 files changed, 745 insertions, 0 deletions
diff --git a/osframework/source/ImageLib/jpeg2000/jpc_dec.h b/osframework/source/ImageLib/jpeg2000/jpc_dec.h new file mode 100644 index 0000000..8ef26e5 --- /dev/null +++ b/osframework/source/ImageLib/jpeg2000/jpc_dec.h @@ -0,0 +1,745 @@ +/*
+ * 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 Software License
+ *
+ * IMAGE POWER JPEG-2000 PUBLIC LICENSE
+ * ************************************
+ *
+ * GRANT:
+ *
+ * Permission is hereby granted, free of charge, to any person (the "User")
+ * obtaining a copy of this software and associated documentation, to deal
+ * in the JasPer Software without restriction, including without limitation
+ * the right to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the JasPer Software (in source and binary forms),
+ * and to permit persons to whom the JasPer Software is furnished to do so,
+ * provided further that the License Conditions below are met.
+ *
+ * License Conditions
+ * ******************
+ *
+ * A. Redistributions of source code must retain the above copyright notice,
+ * and this list of conditions, and the following disclaimer.
+ *
+ * B. Redistributions in binary form must reproduce the above copyright
+ * notice, and this list of conditions, and the following disclaimer in
+ * the documentation and/or other materials provided with the distribution.
+ *
+ * C. Neither the name of Image Power, Inc. nor any other contributor
+ * (including, but not limited to, the University of British Columbia and
+ * Michael David Adams) may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * D. User agrees that it shall not commence any action against Image Power,
+ * Inc., the University of British Columbia, Michael David Adams, or any
+ * other contributors (collectively "Licensors") for infringement of any
+ * intellectual property rights ("IPR") held by the User in respect of any
+ * technology that User owns or has a right to license or sublicense and
+ * which is an element required in order to claim compliance with ISO/IEC
+ * 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property
+ * rights worldwide arising under statutory or common law, and whether
+ * or not perfected, including, without limitation, all (i) patents and
+ * patent applications owned or licensable by User; (ii) rights associated
+ * with works of authorship including copyrights, copyright applications,
+ * copyright registrations, mask work rights, mask work applications,
+ * mask work registrations; (iii) rights relating to the protection of
+ * trade secrets and confidential information; (iv) any right analogous
+ * to those set forth in subsections (i), (ii), or (iii) and any other
+ * proprietary rights relating to intangible property (other than trademark,
+ * trade dress, or service mark rights); and (v) divisions, continuations,
+ * renewals, reissues and extensions of the foregoing (as and to the extent
+ * applicable) now existing, hereafter filed, issued or acquired.
+ *
+ * E. If User commences an infringement action against any Licensor(s) then
+ * such Licensor(s) shall have the right to terminate User's license and
+ * all sublicenses that have been granted hereunder by User to other parties.
+ *
+ * F. This software is for use only in hardware or software products that
+ * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license
+ * or right to this Software is granted for products that do not comply
+ * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased
+ * from the ISO.
+ *
+ * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
+ * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
+ * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND
+ * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY
+ * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,
+ * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,
+ * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING
+ * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE
+ * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING
+ * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
+ * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE
+ * IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE
+ * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY
+ * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY
+ * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,
+ * REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,
+ * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE
+ * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,
+ * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE
+ * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO
+ * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
+ * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,
+ * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
+ * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF
+ * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY
+ * OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT
+ * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR
+ * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING
+ * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,
+ * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT
+ * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
+ * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY
+ * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE
+ * ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS
+ * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT
+ * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING
+ * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS
+ * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE
+ * NOTICE SPECIFIED IN THIS SECTION.
+ *
+ * __END_OF_JASPER_LICENSE__
+ */
+
+/*
+ * JPEG-2000 Decoder
+ *
+ * $Id: jpc_dec.h,v 1.1 2003/05/15 01:30:32 ace Exp $
+ */
+
+#ifndef JPC_DEC_H
+#define JPC_DEC_H
+
+/******************************************************************************\
+* Includes.
+\******************************************************************************/
+
+#include "jas_stream.h"
+
+#include "jpc_tsfb.h"
+#include "jpc_bs.h"
+#include "jpc_tagtree.h"
+#include "jpc_cs.h"
+#include "jpc_cod.h"
+#include "jpc_mqdec.h"
+#include "jpc_t2cod.h"
+
+/******************************************************************************\
+* Below are some ugly warts necessary to support packed packet headers.
+\******************************************************************************/
+
+/* PPM/PPT marker segment table entry. */
+
+typedef struct {
+
+ /* The index for this entry. */
+ uint_fast16_t ind;
+
+ /* The data length. */
+ uint_fast32_t len;
+
+ /* The data. */
+ uchar *data;
+
+} jpc_ppxstabent_t;
+
+/* PPM/PPT marker segment table. */
+
+typedef struct {
+
+ /* The number of entries. */
+ int numents;
+
+ /* The maximum number of entries (i.e., the allocated size of the array
+ below). */
+ int maxents;
+
+ /* The table entries. */
+ jpc_ppxstabent_t **ents;
+
+} jpc_ppxstab_t;
+
+/* Stream list class. */
+
+typedef struct {
+
+ /* The number of streams in this list. */
+ int numstreams;
+
+ /* The maximum number of streams that can be accomodated without
+ growing the streams array. */
+ int maxstreams;
+
+ /* The streams. */
+ jas_stream_t **streams;
+
+} jpc_streamlist_t;
+
+/******************************************************************************\
+* Coding parameters class.
+\******************************************************************************/
+
+/* Per-component coding parameters. */
+
+typedef struct {
+
+ /* How were various coding parameters set? */
+ int flags;
+
+ /* Per-component coding style parameters (e.g., explicit precinct sizes) */
+ uint_fast8_t csty;
+
+ /* The number of resolution levels. */
+ uint_fast8_t numrlvls;
+
+ /* The code block width exponent. */
+ uint_fast8_t cblkwidthexpn;
+
+ /* The code block height exponent. */
+ uint_fast8_t cblkheightexpn;
+
+ /* The QMFB ID. */
+ uint_fast8_t qmfbid;
+
+ /* The quantization style. */
+ uint_fast8_t qsty;
+
+ /* The number of quantizer step sizes. */
+ uint_fast16_t numstepsizes;
+
+ /* The step sizes. */
+ uint_fast16_t stepsizes[3 * JPC_MAXRLVLS + 1];
+
+ /* The number of guard bits. */
+ uint_fast8_t numguardbits;
+
+ /* The ROI shift value. */
+ uint_fast8_t roishift;
+
+ /* The code block parameters. */
+ uint_fast8_t cblkctx;
+
+ /* The precinct width exponents. */
+ uint_fast8_t prcwidthexpns[JPC_MAXRLVLS];
+
+ /* The precinct height exponents. */
+ uint_fast8_t prcheightexpns[JPC_MAXRLVLS];
+
+} jpc_dec_ccp_t;
+
+/* Coding paramters. */
+
+typedef struct {
+
+ /* How were these coding parameters set? */
+ int flags;
+
+ /* Progression change list. */
+ jpc_pchglist_t *pchglist;
+
+ /* Progression order. */
+ uint_fast8_t prgord;
+
+ /* The number of layers. */
+ uint_fast16_t numlyrs;
+
+ /* The MCT ID. */
+ uint_fast8_t mctid;
+
+ /* The coding style parameters (e.g., SOP, EPH). */
+ uint_fast8_t csty;
+
+ /* The number of components. */
+ int numcomps;
+
+ /* The per-component coding parameters. */
+ jpc_dec_ccp_t *ccps;
+
+} jpc_dec_cp_t;
+
+/******************************************************************************\
+* Decoder class.
+\******************************************************************************/
+
+/* Decoder per-segment state information. */
+
+typedef struct jpc_dec_seg_s {
+
+ /* The next segment in the list. */
+ struct jpc_dec_seg_s *next;
+
+ /* The previous segment in the list. */
+ struct jpc_dec_seg_s *prev;
+
+ /* The starting pass number for this segment. */
+ int passno;
+
+ /* The number of passes in this segment. */
+ int numpasses;
+
+ /* The maximum number of passes in this segment. */
+ int maxpasses;
+
+ /* The type of data in this segment (i.e., MQ or raw). */
+ int type;
+
+ /* A stream containing the data for this segment. */
+ jas_stream_t *stream;
+
+ /* The number of bytes destined for this segment from the packet
+ currently being decoded. */
+ int cnt;
+
+ /* A flag indicating if this segment has been terminated. */
+ int complete;
+
+ /* The layer number to which this segment belongs. */
+ /* If the segment spans multiple layers, then the largest layer number
+ spanned by the segment is used. */
+ int lyrno;
+
+} jpc_dec_seg_t;
+
+/* Decoder segment list. */
+
+typedef struct {
+
+ /* The first entry in the list. */
+ jpc_dec_seg_t *head;
+
+ /* The last entry in the list. */
+ jpc_dec_seg_t *tail;
+
+} jpc_dec_seglist_t;
+
+/* Decoder per-code-block state information. */
+
+typedef struct {
+
+ /* The number of passes. */
+ int numpasses;
+
+ /* A list of segments that still need to be decoded. */
+ jpc_dec_seglist_t segs;
+
+ /* The first incomplete/partial segment. */
+ jpc_dec_seg_t *curseg;
+
+ /* The number of leading insignificant bit planes for this code block. */
+ int numimsbs;
+
+ /* The number of bits used to encode pass data lengths. */
+ int numlenbits;
+
+ /* The first pass number containing data for this code block. */
+ int firstpassno;
+
+ /* The MQ decoder. */
+ jpc_mqdec_t *mqdec;
+
+ /* The raw bit stream decoder. */
+ jpc_bitstream_t *nulldec;
+
+ /* The per-sample state information for this code block. */
+ jas_matrix_t *flags;
+
+ /* The sample data associated with this code block. */
+ jas_matrix_t *data;
+
+} jpc_dec_cblk_t;
+
+/* Decoder per-code-block-group state information. */
+
+typedef struct {
+
+ /* The x-coordinate of the top-left corner of the precinct. */
+ uint_fast32_t xstart;
+
+ /* The y-coordinate of the top-left corner of the precinct. */
+ uint_fast32_t ystart;
+
+ /* The x-coordinate of the bottom-right corner of the precinct
+ (plus one). */
+ uint_fast32_t xend;
+
+ /* The y-coordinate of the bottom-right corner of the precinct
+ (plus one). */
+ uint_fast32_t yend;
+
+ /* The number of code blocks spanning this precinct in the horizontal
+ direction. */
+ int numhcblks;
+
+ /* The number of code blocks spanning this precinct in the vertical
+ direction. */
+ int numvcblks;
+
+ /* The total number of code blocks in this precinct. */
+ int numcblks;
+
+ /* The per code block information. */
+ jpc_dec_cblk_t *cblks;
+
+ /* The inclusion tag tree. */
+ jpc_tagtree_t *incltagtree;
+
+ /* The insignificant MSBs tag tree. */
+ jpc_tagtree_t *numimsbstagtree;
+
+} jpc_dec_prc_t;
+
+/* Decoder per-band state information. */
+
+typedef struct {
+
+ /* The per-code-block-group state information. */
+ jpc_dec_prc_t *prcs;
+
+ /* The sample data associated with this band. */
+ jas_matrix_t *data;
+
+ /* The orientation of this band (i.e., LL, LH, HL, or HH). */
+ int orient;
+
+ /* The encoded quantizer step size. */
+ int stepsize;
+
+ /* The absolute quantizer step size. */
+ jpc_fix_t absstepsize;
+
+ /* The number of bit planes for this band. */
+ int numbps;
+
+ /* The analysis gain associated with this band. */
+ int analgain;
+
+ /* The ROI shift value for this band. */
+ int roishift;
+
+} jpc_dec_band_t;
+
+/* Decoder per-resolution-level state information. */
+
+typedef struct {
+
+ /* The number of bands associated with this resolution level. */
+ int numbands;
+
+ /* The per-band information. */
+ jpc_dec_band_t *bands;
+
+ /* The x-coordinate of the top-left corner of the tile-component
+ at this resolution. */
+ uint_fast32_t xstart;
+
+ /* The y-coordinate of the top-left corner of the tile-component
+ at this resolution. */
+ uint_fast32_t ystart;
+
+ /* The x-coordinate of the bottom-right corner of the tile-component
+ at this resolution (plus one). */
+ uint_fast32_t xend;
+
+ /* The y-coordinate of the bottom-right corner of the tile-component
+ at this resolution (plus one). */
+ uint_fast32_t yend;
+
+ /* The exponent value for the nominal precinct width measured
+ relative to the associated LL band. */
+ int prcwidthexpn;
+
+ /* The exponent value for the nominal precinct height measured
+ relative to the associated LL band. */
+ int prcheightexpn;
+
+ /* The number of precincts in the horizontal direction. */
+ int numhprcs;
+
+ /* The number of precincts in the vertical direction. */
+ int numvprcs;
+
+ /* The total number of precincts. */
+ int numprcs;
+
+ /* The exponent value for the nominal code block group width.
+ This quantity is associated with the next lower resolution level
+ (assuming that there is one). */
+ int cbgwidthexpn;
+
+ /* The exponent value for the nominal code block group height
+ This quantity is associated with the next lower resolution level
+ (assuming that there is one). */
+ int cbgheightexpn;
+
+ /* The exponent value for the code block width. */
+ uint_fast16_t cblkwidthexpn;
+
+ /* The exponent value for the code block height. */
+ uint_fast16_t cblkheightexpn;
+
+} jpc_dec_rlvl_t;
+
+/* Decoder per-tile-component state information. */
+
+typedef struct {
+
+ /* The x-coordinate of the top-left corner of the tile-component
+ in the coordinate system of the tile-component. */
+ uint_fast32_t xstart;
+
+ /* The y-coordinate of the top-left corner of the tile-component
+ in the coordinate system of the tile-component. */
+ uint_fast32_t ystart;
+
+ /* The x-coordinate of the bottom-right corner of the tile-component
+ in the coordinate system of the tile-component (plus one). */
+ uint_fast32_t xend;
+
+ /* The y-coordinate of the bottom-right corner of the tile-component
+ in the coordinate system of the tile-component (plus one). */
+ uint_fast32_t yend;
+
+ /* The component data for the current tile. */
+ jas_matrix_t *data;
+
+ /* The number of resolution levels. */
+ int numrlvls;
+
+ /* The per resolution level information. */
+ jpc_dec_rlvl_t *rlvls;
+
+ /* The TSFB. */
+ jpc_tsfb_t *tsfb;
+
+} jpc_dec_tcomp_t;
+
+/*
+ * Tile states.
+ */
+
+#define JPC_TILE_INIT 0
+#define JPC_TILE_ACTIVE 1
+#define JPC_TILE_ACTIVELAST 2
+#define JPC_TILE_DONE 3
+
+/* Decoder per-tile state information. */
+
+typedef struct {
+
+ /* The processing state for this tile. */
+ int state;
+
+ /* The x-coordinate of the top-left corner of the tile on the reference
+ grid. */
+ uint_fast32_t xstart;
+
+ /* The y-coordinate of the top-left corner of the tile on the reference
+ grid. */
+ uint_fast32_t ystart;
+
+ /* The x-coordinate of the bottom-right corner of the tile on the
+ reference grid (plus one). */
+ uint_fast32_t xend;
+
+ /* The y-coordinate of the bottom-right corner of the tile on the
+ reference grid (plus one). */
+ uint_fast32_t yend;
+
+ /* The packed packet header data for this tile. */
+ jpc_ppxstab_t *pptstab;
+
+ /* A stream containing the packed packet header data for this tile. */
+ jas_stream_t *pkthdrstream;
+
+ /* The current position within the packed packet header stream. */
+ long pkthdrstreampos;
+
+ /* The coding parameters for this tile. */
+ jpc_dec_cp_t *cp;
+
+ /* The per tile-component information. */
+ jpc_dec_tcomp_t *tcomps;
+
+ /* The next expected tile-part number. */
+ int partno;
+
+ /* The number of tile-parts. */
+ int numparts;
+
+ /* The coding mode. */
+ int realmode;
+
+ /* The packet iterator for this tile. */
+ jpc_pi_t *pi;
+
+} jpc_dec_tile_t;
+
+/* Decoder per-component state information. */
+
+typedef struct {
+
+ /* The horizontal sampling period. */
+ uint_fast32_t hstep;
+
+ /* The vertical sampling period. */
+ uint_fast32_t vstep;
+
+ /* The number of samples in the horizontal direction. */
+ uint_fast32_t width;
+
+ /* The number of samples in the vertical direction. */
+ uint_fast32_t height;
+
+ /* The precision of the sample data. */
+ uint_fast16_t prec;
+
+ /* The signedness of the sample data. */
+ bool sgnd;
+
+ /* The sample alignment horizontal offset. */
+ uint_fast32_t hsubstep;
+
+ /* The sample alignment vertical offset. */
+ uint_fast32_t vsubstep;
+
+} jpc_dec_cmpt_t;
+
+/* Decoder state information. */
+
+typedef struct {
+
+ /* The decoded image. */
+ jas_image_t *image;
+
+ /* The x-coordinate of the top-left corner of the image area on
+ the reference grid. */
+ uint_fast32_t xstart;
+
+ /* The y-coordinate of the top-left corner of the image area on
+ the reference grid. */
+ uint_fast32_t ystart;
+
+ /* The x-coordinate of the bottom-right corner of the image area on
+ the reference grid (plus one). */
+ uint_fast32_t xend;
+
+ /* The y-coordinate of the bottom-right corner of the image area on
+ the reference grid (plus one). */
+ uint_fast32_t yend;
+
+ /* The nominal tile width in units of the image reference grid. */
+ uint_fast32_t tilewidth;
+
+ /* The nominal tile height in units of the image reference grid. */
+ uint_fast32_t tileheight;
+
+ /* The horizontal offset from the origin of the reference grid to the
+ left side of the first tile. */
+ uint_fast32_t tilexoff;
+
+ /* The vertical offset from the origin of the reference grid to the
+ top side of the first tile. */
+ uint_fast32_t tileyoff;
+
+ /* The number of tiles spanning the image area in the vertical
+ direction. */
+ int numhtiles;
+
+ /* The number of tiles spanning the image area in the horizontal
+ direction. */
+ int numvtiles;
+
+ /* The total number of tiles. */
+ int numtiles;
+
+ /* The per-tile information. */
+ jpc_dec_tile_t *tiles;
+
+ /* The tile currently being processed. */
+ jpc_dec_tile_t *curtile;
+
+ /* The number of components. */
+ int numcomps;
+
+ /* The stream containing the input JPEG-2000 code stream data. */
+ jas_stream_t *in;
+
+ /* The default coding parameters for all tiles. */
+ jpc_dec_cp_t *cp;
+
+ /* The maximum number of layers that may be decoded. */
+ int maxlyrs;
+
+ /* The maximum number of packets that may be decoded. */
+ int maxpkts;
+
+ /* The number of packets decoded so far in the processing of the entire
+ code stream. */
+ int numpkts;
+
+ /* The next expected PPM marker segment sequence number. */
+ int ppmseqno;
+
+ /* The current state for code stream processing. */
+ int state;
+
+ /* The per-component information. */
+ jpc_dec_cmpt_t *cmpts;
+
+ /* The information from PPM marker segments. */
+ jpc_ppxstab_t *ppmstab;
+
+ /* A list of streams containing packet header data from PPM marker
+ segments. */
+ jpc_streamlist_t *pkthdrstreams;
+
+ /* The expected ending offset for a tile-part. */
+ long curtileendoff;
+
+ /* This is required by the tier-2 decoder. */
+ jpc_cstate_t *cstate;
+
+} jpc_dec_t;
+
+/* Decoder options. */
+
+typedef struct {
+
+ /* The debug level for the decoder. */
+ int debug;
+
+ /* The maximum number of layers to decode. */
+ int maxlyrs;
+
+ /* The maximum number of packets to decode. */
+ int maxpkts;
+
+} jpc_dec_importopts_t;
+
+/******************************************************************************\
+* Functions.
+\******************************************************************************/
+
+/* Create a decoder segment object. */
+jpc_dec_seg_t *jpc_seg_alloc(void);
+
+/* Destroy a decoder segment object. */
+void jpc_seg_destroy(jpc_dec_seg_t *seg);
+
+/* Remove a segment from a segment list. */
+void jpc_seglist_remove(jpc_dec_seglist_t *list, jpc_dec_seg_t *node);
+
+/* Insert a segment into a segment list. */
+void jpc_seglist_insert(jpc_dec_seglist_t *list, jpc_dec_seg_t *ins,
+ jpc_dec_seg_t *node);
+
+#endif
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