2 * $Id: ppix_manager.c 897 2011-08-28 21:43:57Z Kaori.Hagihara@gmail.com $
4 * Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
5 * Copyright (c) 2002-2011, Professor Benoit Macq
6 * Copyright (c) 2003-2004, Yannick Verschueren
7 * Copyright (c) 2010-2011, Kaori Hagihara
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
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17 * documentation and/or other materials provided with the distribution.
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33 * \brief Modification of jpip.c from 2KAN indexer
39 #include "opj_includes.h"
42 * Write faix box of ppix
44 * @param[in] coff offset of j2k codestream
45 * @param[in] compno component number
46 * @param[in] cstr_info codestream information
47 * @param[in] EPHused true if if EPH option used
48 * @param[in] j2klen length of j2k codestream
49 * @param[in] cio file output handle
50 * @return length of faix box
52 int write_ppixfaix( int coff, int compno, opj_codestream_info_t cstr_info, opj_bool EPHused, int j2klen, opj_cio_t *cio);
54 int write_ppix( int coff, opj_codestream_info_t cstr_info, opj_bool EPHused, int j2klen, opj_cio_t *cio)
56 int len, lenp, compno, i;
59 // printf("cstr_info.packno %d\n", cstr_info.packno); //NMAX?
61 box = (opj_jp2_box_t *)opj_calloc( cstr_info.numcomps, sizeof(opj_jp2_box_t));
64 if (i) cio_seek( cio, lenp);
66 lenp = cio_tell( cio);
67 cio_skip( cio, 4); /* L [at the end] */
68 cio_write( cio, JPIP_PPIX, 4); /* PPIX */
70 write_manf( i, cstr_info.numcomps, box, cio);
72 for (compno=0; compno<cstr_info.numcomps; compno++){
73 box[compno].length = write_ppixfaix( coff, compno, cstr_info, EPHused, j2klen, cio);
74 box[compno].type = JPIP_FAIX;
77 len = cio_tell( cio)-lenp;
79 cio_write( cio, len, 4); /* L */
80 cio_seek( cio, lenp+len);
88 int write_ppixfaix( int coff, int compno, opj_codestream_info_t cstr_info, opj_bool EPHused, int j2klen, opj_cio_t *cio)
91 int tileno, resno, precno, layno, num_packet=0;
92 int size_of_coding; // 4 or 8
95 opj_tile_info_t *tile_Idx;
96 opj_packet_info_t packet;
98 if( j2klen > pow( 2, 32)){
107 lenp = cio_tell( cio);
108 cio_skip( cio, 4); /* L [at the end] */
109 cio_write( cio, JPIP_FAIX, 4); /* FAIX */
110 cio_write( cio, version, 1); /* Version 0 = 4 bytes */
112 for( i=0; i<=cstr_info.numdecompos[compno]; i++)
113 nmax += cstr_info.tile[0].ph[i] * cstr_info.tile[0].pw[i] * cstr_info.numlayers;
115 cio_write( cio, nmax, size_of_coding); /* NMAX */
116 cio_write( cio, cstr_info.tw*cstr_info.th, size_of_coding); /* M */
118 for( tileno=0; tileno<cstr_info.tw*cstr_info.th; tileno++){
120 tile_Idx = &cstr_info.tile[ tileno];
121 // int correction = EPHused ? 3 : 1;
124 for( resno=0; resno<=cstr_info.numdecompos[compno]; resno++){
125 for( precno=0; precno<tile_Idx->pw[resno]*tile_Idx->ph[resno]; precno++){
126 for( layno=0; layno<cstr_info.numlayers; layno++){
127 packet = tile_Idx->packet[num_packet * cstr_info.numcomps + compno];
128 cio_write( cio, packet.start_pos-coff, size_of_coding); /* start position */
129 cio_write( cio, packet.end_pos-packet.start_pos+1, size_of_coding); /* length */
137 while( num_packet < nmax){
138 cio_write( cio, 0, size_of_coding); /* start position */
139 cio_write( cio, 0, size_of_coding); /* length */
144 len = cio_tell( cio)-lenp;
145 cio_seek( cio, lenp);
146 cio_write( cio, len, 4); /* L */
147 cio_seek( cio, lenp+len);