+++ /dev/null
-/*
- * Copyright (c) 1999-2000 Image Power, Inc. and the University of
- * British Columbia.
- * Copyright (c) 2001-2003 Michael David Adams.
- * All rights reserved.
- */
-
-/* __START_OF_JASPER_LICENSE__
- *
- * JasPer License Version 2.0
- *
- * Copyright (c) 2001-2006 Michael David Adams
- * Copyright (c) 1999-2000 Image Power, Inc.
- * Copyright (c) 1999-2000 The University of British Columbia
- *
- * 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__
- */
-
-/*
- * Tier 2 Encoder
- *
- * $Id: jpc_t2enc.c,v 1.2 2008/05/26 09:40:52 vp153 Exp $
- */
-
-/******************************************************************************\
-* Includes.
-\******************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#include "jasper/jas_fix.h"
-#include "jasper/jas_malloc.h"
-#include "jasper/jas_math.h"
-#include "jasper/jas_debug.h"
-
-#include "jpc_flt.h"
-#include "jpc_t2enc.h"
-#include "jpc_t2cod.h"
-#include "jpc_tagtree.h"
-#include "jpc_enc.h"
-#include "jpc_math.h"
-
-/******************************************************************************\
-* Code.
-\******************************************************************************/
-
-static int jpc_putcommacode(jpc_bitstream_t *out, int n)
-{
- assert(n >= 0);
-
- while (--n >= 0) {
- if (jpc_bitstream_putbit(out, 1) == EOF) {
- return -1;
- }
- }
- if (jpc_bitstream_putbit(out, 0) == EOF) {
- return -1;
- }
- return 0;
-}
-
-static int jpc_putnumnewpasses(jpc_bitstream_t *out, int n)
-{
- int ret;
-
- if (n <= 0) {
- return -1;
- } else if (n == 1) {
- ret = jpc_bitstream_putbit(out, 0);
- } else if (n == 2) {
- ret = jpc_bitstream_putbits(out, 2, 2);
- } else if (n <= 5) {
- ret = jpc_bitstream_putbits(out, 4, 0xc | (n - 3));
- } else if (n <= 36) {
- ret = jpc_bitstream_putbits(out, 9, 0x1e0 | (n - 6));
- } else if (n <= 164) {
- ret = jpc_bitstream_putbits(out, 16, 0xff80 | (n - 37));
- } else {
- /* The standard has no provision for encoding a larger value.
- In practice, however, it is highly unlikely that this
- limitation will ever be encountered. */
- return -1;
- }
-
- return (ret != EOF) ? 0 : (-1);
-}
-
-int jpc_enc_encpkts(jpc_enc_t *enc, jas_stream_t *out)
-{
- jpc_enc_tile_t *tile;
- jpc_pi_t *pi;
-
- tile = enc->curtile;
-
- jpc_init_t2state(enc, 0);
- pi = tile->pi;
- jpc_pi_init(pi);
-
- if (!jpc_pi_next(pi)) {
- for (;;) {
- if (jpc_enc_encpkt(enc, out, jpc_pi_cmptno(pi), jpc_pi_rlvlno(pi),
- jpc_pi_prcno(pi), jpc_pi_lyrno(pi))) {
- return -1;
- }
- if (jpc_pi_next(pi)) {
- break;
- }
- }
- }
-
- return 0;
-}
-
-int jpc_enc_encpkt(jpc_enc_t *enc, jas_stream_t *out, int compno, int lvlno, int prcno, int lyrno)
-{
- jpc_enc_tcmpt_t *comp;
- jpc_enc_rlvl_t *lvl;
- jpc_enc_band_t *band;
- jpc_enc_band_t *endbands;
- jpc_enc_cblk_t *cblk;
- jpc_enc_cblk_t *endcblks;
- jpc_bitstream_t *outb;
- jpc_enc_pass_t *pass;
- jpc_enc_pass_t *startpass;
- jpc_enc_pass_t *lastpass;
- jpc_enc_pass_t *endpass;
- jpc_enc_pass_t *endpasses;
- int i;
- int included;
- int ret;
- jpc_tagtreenode_t *leaf;
- int n;
- int t1;
- int t2;
- int adjust;
- int maxadjust;
- int datalen;
- int numnewpasses;
- int passcount;
- jpc_enc_tile_t *tile;
- jpc_enc_prc_t *prc;
- jpc_enc_cp_t *cp;
- jpc_ms_t *ms;
-
- tile = enc->curtile;
- cp = enc->cp;
-
- if (cp->tcp.csty & JPC_COD_SOP) {
- if (!(ms = jpc_ms_create(JPC_MS_SOP))) {
- return -1;
- }
- ms->parms.sop.seqno = jpc_pi_getind(tile->pi);
- if (jpc_putms(out, enc->cstate, ms)) {
- return -1;
- }
- jpc_ms_destroy(ms);
- }
-
- outb = jpc_bitstream_sopen(out, "w+");
- assert(outb);
-
- if (jpc_bitstream_putbit(outb, 1) == EOF) {
- return -1;
- }
- JAS_DBGLOG(10, ("\n"));
- JAS_DBGLOG(10, ("present. "));
-
- comp = &tile->tcmpts[compno];
- lvl = &comp->rlvls[lvlno];
- endbands = &lvl->bands[lvl->numbands];
- for (band = lvl->bands; band != endbands; ++band) {
- if (!band->data) {
- continue;
- }
- prc = &band->prcs[prcno];
- if (!prc->cblks) {
- continue;
- }
-
- endcblks = &prc->cblks[prc->numcblks];
- for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
- if (!lyrno) {
- leaf = jpc_tagtree_getleaf(prc->nlibtree, cblk - prc->cblks);
- jpc_tagtree_setvalue(prc->nlibtree, leaf, cblk->numimsbs);
- }
- pass = cblk->curpass;
- included = (pass && pass->lyrno == lyrno);
- if (included && (!cblk->numencpasses)) {
- assert(pass->lyrno == lyrno);
- leaf = jpc_tagtree_getleaf(prc->incltree,
- cblk - prc->cblks);
- jpc_tagtree_setvalue(prc->incltree, leaf, pass->lyrno);
- }
- }
-
- endcblks = &prc->cblks[prc->numcblks];
- for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
- pass = cblk->curpass;
- included = (pass && pass->lyrno == lyrno);
- if (!cblk->numencpasses) {
- leaf = jpc_tagtree_getleaf(prc->incltree,
- cblk - prc->cblks);
- if (jpc_tagtree_encode(prc->incltree, leaf, lyrno
- + 1, outb) < 0) {
- return -1;
- }
- } else {
- if (jpc_bitstream_putbit(outb, included) == EOF) {
- return -1;
- }
- }
- JAS_DBGLOG(10, ("included=%d ", included));
- if (!included) {
- continue;
- }
- if (!cblk->numencpasses) {
- i = 1;
- leaf = jpc_tagtree_getleaf(prc->nlibtree, cblk - prc->cblks);
- for (;;) {
- if ((ret = jpc_tagtree_encode(prc->nlibtree, leaf, i, outb)) < 0) {
- return -1;
- }
- if (ret) {
- break;
- }
- ++i;
- }
- assert(leaf->known_ && i == leaf->value_ + 1);
- }
-
- endpasses = &cblk->passes[cblk->numpasses];
- startpass = pass;
- endpass = startpass;
- while (endpass != endpasses && endpass->lyrno == lyrno){
- ++endpass;
- }
- numnewpasses = endpass - startpass;
- if (jpc_putnumnewpasses(outb, numnewpasses)) {
- return -1;
- }
- JAS_DBGLOG(10, ("numnewpasses=%d ", numnewpasses));
-
- lastpass = endpass - 1;
- n = startpass->start;
- passcount = 1;
- maxadjust = 0;
- for (pass = startpass; pass != endpass; ++pass) {
- if (pass->term || pass == lastpass) {
- datalen = pass->end - n;
- t1 = jpc_firstone(datalen) + 1;
- t2 = cblk->numlenbits + jpc_floorlog2(passcount);
- adjust = JAS_MAX(t1 - t2, 0);
- maxadjust = JAS_MAX(adjust, maxadjust);
- n += datalen;
- passcount = 1;
- } else {
- ++passcount;
- }
- }
- if (jpc_putcommacode(outb, maxadjust)) {
- return -1;
- }
- cblk->numlenbits += maxadjust;
-
- lastpass = endpass - 1;
- n = startpass->start;
- passcount = 1;
- for (pass = startpass; pass != endpass; ++pass) {
- if (pass->term || pass == lastpass) {
- datalen = pass->end - n;
-assert(jpc_firstone(datalen) < cblk->numlenbits + jpc_floorlog2(passcount));
- if (jpc_bitstream_putbits(outb, cblk->numlenbits + jpc_floorlog2(passcount), datalen) == EOF) {
- return -1;
- }
- n += datalen;
- passcount = 1;
- } else {
- ++passcount;
- }
- }
- }
- }
-
- jpc_bitstream_outalign(outb, 0);
- jpc_bitstream_close(outb);
-
- if (cp->tcp.csty & JPC_COD_EPH) {
- if (!(ms = jpc_ms_create(JPC_MS_EPH))) {
- return -1;
- }
- jpc_putms(out, enc->cstate, ms);
- jpc_ms_destroy(ms);
- }
-
- comp = &tile->tcmpts[compno];
- lvl = &comp->rlvls[lvlno];
- endbands = &lvl->bands[lvl->numbands];
- for (band = lvl->bands; band != endbands; ++band) {
- if (!band->data) {
- continue;
- }
- prc = &band->prcs[prcno];
- if (!prc->cblks) {
- continue;
- }
- endcblks = &prc->cblks[prc->numcblks];
- for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
- pass = cblk->curpass;
-
- if (!pass) {
- continue;
- }
- if (pass->lyrno != lyrno) {
- assert(pass->lyrno < 0 || pass->lyrno > lyrno);
- continue;
- }
-
- endpasses = &cblk->passes[cblk->numpasses];
- startpass = pass;
- endpass = startpass;
- while (endpass != endpasses && endpass->lyrno == lyrno){
- ++endpass;
- }
- lastpass = endpass - 1;
- numnewpasses = endpass - startpass;
-
- jas_stream_seek(cblk->stream, startpass->start, SEEK_SET);
- assert(jas_stream_tell(cblk->stream) == startpass->start);
- if (jas_stream_copy(out, cblk->stream, lastpass->end - startpass->start)) {
- return -1;
- }
- cblk->curpass = (endpass != endpasses) ? endpass : 0;
- cblk->numencpasses += numnewpasses;
-
- }
- }
-
- return 0;
-}
-
-void jpc_save_t2state(jpc_enc_t *enc)
-{
-/* stream pos in embedded T1 stream may be wrong since not saved/restored! */
-
- jpc_enc_tcmpt_t *comp;
- jpc_enc_tcmpt_t *endcomps;
- jpc_enc_rlvl_t *lvl;
- jpc_enc_rlvl_t *endlvls;
- jpc_enc_band_t *band;
- jpc_enc_band_t *endbands;
- jpc_enc_cblk_t *cblk;
- jpc_enc_cblk_t *endcblks;
- jpc_enc_tile_t *tile;
- int prcno;
- jpc_enc_prc_t *prc;
-
- tile = enc->curtile;
-
- endcomps = &tile->tcmpts[tile->numtcmpts];
- for (comp = tile->tcmpts; comp != endcomps; ++comp) {
- endlvls = &comp->rlvls[comp->numrlvls];
- for (lvl = comp->rlvls; lvl != endlvls; ++lvl) {
- if (!lvl->bands) {
- continue;
- }
- endbands = &lvl->bands[lvl->numbands];
- for (band = lvl->bands; band != endbands; ++band) {
- if (!band->data) {
- continue;
- }
- for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
- if (!prc->cblks) {
- continue;
- }
- jpc_tagtree_copy(prc->savincltree, prc->incltree);
- jpc_tagtree_copy(prc->savnlibtree, prc->nlibtree);
- endcblks = &prc->cblks[prc->numcblks];
- for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
- cblk->savedcurpass = cblk->curpass;
- cblk->savednumencpasses = cblk->numencpasses;
- cblk->savednumlenbits = cblk->numlenbits;
- }
- }
- }
- }
- }
-
-}
-
-void jpc_restore_t2state(jpc_enc_t *enc)
-{
-
- jpc_enc_tcmpt_t *comp;
- jpc_enc_tcmpt_t *endcomps;
- jpc_enc_rlvl_t *lvl;
- jpc_enc_rlvl_t *endlvls;
- jpc_enc_band_t *band;
- jpc_enc_band_t *endbands;
- jpc_enc_cblk_t *cblk;
- jpc_enc_cblk_t *endcblks;
- jpc_enc_tile_t *tile;
- int prcno;
- jpc_enc_prc_t *prc;
-
- tile = enc->curtile;
-
- endcomps = &tile->tcmpts[tile->numtcmpts];
- for (comp = tile->tcmpts; comp != endcomps; ++comp) {
- endlvls = &comp->rlvls[comp->numrlvls];
- for (lvl = comp->rlvls; lvl != endlvls; ++lvl) {
- if (!lvl->bands) {
- continue;
- }
- endbands = &lvl->bands[lvl->numbands];
- for (band = lvl->bands; band != endbands; ++band) {
- if (!band->data) {
- continue;
- }
- for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
- if (!prc->cblks) {
- continue;
- }
- jpc_tagtree_copy(prc->incltree, prc->savincltree);
- jpc_tagtree_copy(prc->nlibtree, prc->savnlibtree);
- endcblks = &prc->cblks[prc->numcblks];
- for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
- cblk->curpass = cblk->savedcurpass;
- cblk->numencpasses = cblk->savednumencpasses;
- cblk->numlenbits = cblk->savednumlenbits;
- }
- }
- }
- }
- }
-}
-
-void jpc_init_t2state(jpc_enc_t *enc, int raflag)
-{
-/* It is assumed that band->numbps and cblk->numbps precomputed */
-
- jpc_enc_tcmpt_t *comp;
- jpc_enc_tcmpt_t *endcomps;
- jpc_enc_rlvl_t *lvl;
- jpc_enc_rlvl_t *endlvls;
- jpc_enc_band_t *band;
- jpc_enc_band_t *endbands;
- jpc_enc_cblk_t *cblk;
- jpc_enc_cblk_t *endcblks;
- jpc_enc_pass_t *pass;
- jpc_enc_pass_t *endpasses;
- jpc_tagtreenode_t *leaf;
- jpc_enc_tile_t *tile;
- int prcno;
- jpc_enc_prc_t *prc;
-
- tile = enc->curtile;
-
- endcomps = &tile->tcmpts[tile->numtcmpts];
- for (comp = tile->tcmpts; comp != endcomps; ++comp) {
- endlvls = &comp->rlvls[comp->numrlvls];
- for (lvl = comp->rlvls; lvl != endlvls; ++lvl) {
- if (!lvl->bands) {
- continue;
- }
- endbands = &lvl->bands[lvl->numbands];
- for (band = lvl->bands; band != endbands; ++band) {
- if (!band->data) {
- continue;
- }
- for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
- if (!prc->cblks) {
- continue;
- }
- jpc_tagtree_reset(prc->incltree);
- jpc_tagtree_reset(prc->nlibtree);
- endcblks = &prc->cblks[prc->numcblks];
- for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
- if (jas_stream_rewind(cblk->stream)) {
- assert(0);
- }
- cblk->curpass = (cblk->numpasses > 0) ? cblk->passes : 0;
- cblk->numencpasses = 0;
- cblk->numlenbits = 3;
- cblk->numimsbs = band->numbps - cblk->numbps;
- assert(cblk->numimsbs >= 0);
- leaf = jpc_tagtree_getleaf(prc->nlibtree, cblk - prc->cblks);
- jpc_tagtree_setvalue(prc->nlibtree, leaf, cblk->numimsbs);
-
- if (raflag) {
- endpasses = &cblk->passes[cblk->numpasses];
- for (pass = cblk->passes; pass != endpasses; ++pass) {
- pass->lyrno = -1;
- pass->lyrno = 0;
- }
- }
- }
- }
- }
- }
- }
-
-}
-
-jpc_pi_t *jpc_enc_pi_create(jpc_enc_cp_t *cp, jpc_enc_tile_t *tile)
-{
- jpc_pi_t *pi;
- int compno;
- jpc_picomp_t *picomp;
- jpc_pirlvl_t *pirlvl;
- jpc_enc_tcmpt_t *tcomp;
- int rlvlno;
- jpc_enc_rlvl_t *rlvl;
- int prcno;
- int *prclyrno;
-
- if (!(pi = jpc_pi_create0())) {
- return 0;
- }
- pi->pktno = -1;
- pi->numcomps = cp->numcmpts;
- if (!(pi->picomps = jas_malloc(pi->numcomps * sizeof(jpc_picomp_t)))) {
- jpc_pi_destroy(pi);
- return 0;
- }
- for (compno = 0, picomp = pi->picomps; compno < pi->numcomps; ++compno,
- ++picomp) {
- picomp->pirlvls = 0;
- }
-
- for (compno = 0, tcomp = tile->tcmpts, picomp = pi->picomps;
- compno < pi->numcomps; ++compno, ++tcomp, ++picomp) {
- picomp->numrlvls = tcomp->numrlvls;
- if (!(picomp->pirlvls = jas_malloc(picomp->numrlvls *
- sizeof(jpc_pirlvl_t)))) {
- jpc_pi_destroy(pi);
- return 0;
- }
- for (rlvlno = 0, pirlvl = picomp->pirlvls; rlvlno <
- picomp->numrlvls; ++rlvlno, ++pirlvl) {
- pirlvl->prclyrnos = 0;
- }
- for (rlvlno = 0, pirlvl = picomp->pirlvls, rlvl = tcomp->rlvls;
- rlvlno < picomp->numrlvls; ++rlvlno, ++pirlvl, ++rlvl) {
-/* XXX sizeof(long) should be sizeof different type */
- pirlvl->numprcs = rlvl->numprcs;
- if (rlvl->numprcs) {
- if (!(pirlvl->prclyrnos = jas_malloc(pirlvl->numprcs *
- sizeof(long)))) {
- jpc_pi_destroy(pi);
- return 0;
- }
- } else {
- pirlvl->prclyrnos = 0;
- }
- }
- }
-
- pi->maxrlvls = 0;
- for (compno = 0, tcomp = tile->tcmpts, picomp = pi->picomps;
- compno < pi->numcomps; ++compno, ++tcomp, ++picomp) {
- picomp->hsamp = cp->ccps[compno].sampgrdstepx;
- picomp->vsamp = cp->ccps[compno].sampgrdstepy;
- for (rlvlno = 0, pirlvl = picomp->pirlvls, rlvl = tcomp->rlvls;
- rlvlno < picomp->numrlvls; ++rlvlno, ++pirlvl, ++rlvl) {
- pirlvl->prcwidthexpn = rlvl->prcwidthexpn;
- pirlvl->prcheightexpn = rlvl->prcheightexpn;
- for (prcno = 0, prclyrno = pirlvl->prclyrnos;
- prcno < pirlvl->numprcs; ++prcno, ++prclyrno) {
- *prclyrno = 0;
- }
- pirlvl->numhprcs = rlvl->numhprcs;
- }
- if (pi->maxrlvls < tcomp->numrlvls) {
- pi->maxrlvls = tcomp->numrlvls;
- }
- }
-
- pi->numlyrs = tile->numlyrs;
- pi->xstart = tile->tlx;
- pi->ystart = tile->tly;
- pi->xend = tile->brx;
- pi->yend = tile->bry;
-
- pi->picomp = 0;
- pi->pirlvl = 0;
- pi->x = 0;
- pi->y = 0;
- pi->compno = 0;
- pi->rlvlno = 0;
- pi->prcno = 0;
- pi->lyrno = 0;
- pi->xstep = 0;
- pi->ystep = 0;
-
- pi->pchgno = -1;
-
- pi->defaultpchg.prgord = tile->prg;
- pi->defaultpchg.compnostart = 0;
- pi->defaultpchg.compnoend = pi->numcomps;
- pi->defaultpchg.rlvlnostart = 0;
- pi->defaultpchg.rlvlnoend = pi->maxrlvls;
- pi->defaultpchg.lyrnoend = pi->numlyrs;
- pi->pchg = 0;
-
- pi->valid = 0;
-
- return pi;
-}
projects / opencv / blobdiff