Exemplo n.º 1
0
static int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile, 
														opj_tcp_t *tcp, opj_pi_iterator_t *pi, opj_packet_info_t *pack_info) {
	int bandno, cblkno;
	unsigned char *c = src;

	opj_cp_t *cp = t2->cp;

	int compno = pi->compno;	/* component value */
	int resno  = pi->resno;		/* resolution level value */
	int precno = pi->precno;	/* precinct value */
	int layno  = pi->layno;		/* quality layer value */

	opj_tcd_resolution_t* res = &tile->comps[compno].resolutions[resno];

	unsigned char *hd = NULL;
	int present;
	
	opj_bio_t *bio = NULL;	/* BIO component */
	
	if (layno == 0) {
		for (bandno = 0; bandno < res->numbands; bandno++) {
			opj_tcd_band_t *band = &res->bands[bandno];
			opj_tcd_precinct_t *prc = &band->precincts[precno];
			
			if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
			
			tgt_reset(prc->incltree);
			tgt_reset(prc->imsbtree);
			for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
				opj_tcd_cblk_dec_t* cblk = &prc->cblks.dec[cblkno];
				cblk->numsegs = 0;
			}
		}
	}
	
	/* SOP markers */
	
	if (tcp->csty & J2K_CP_CSTY_SOP) {
		if ((*c) != 0xff || (*(c + 1) != 0x91)) {
			opj_event_msg(t2->cinfo, EVT_WARNING, "Expected SOP marker\n");
		} else {
			c += 6;
		}
		
		/** TODO : check the Nsop value */
	}
	
	/* 
	When the marker PPT/PPM is used the packet header are store in PPT/PPM marker
	This part deal with this caracteristic
	step 1: Read packet header in the saved structure
	step 2: Return to codestream for decoding 
	*/

	bio = bio_create();
	
	if (cp->ppm == 1) {		/* PPM */
		hd = cp->ppm_data;
		bio_init_dec(bio, hd, cp->ppm_len);
	} else if (tcp->ppt == 1) {	/* PPT */
		hd = tcp->ppt_data;
		bio_init_dec(bio, hd, tcp->ppt_len);
	} else {			/* Normal Case */
		hd = c;
		bio_init_dec(bio, hd, src+len-hd);
	}
	
	present = bio_read(bio, 1);
	
	if (!present) {
		bio_inalign(bio);
		hd += bio_numbytes(bio);
		bio_destroy(bio);
		
		/* EPH markers */
		
		if (tcp->csty & J2K_CP_CSTY_EPH) {
			if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
				printf("Error : expected EPH marker\n");
			} else {
				hd += 2;
			}
		}

		/* << INDEX */
		/* End of packet header position. Currently only represents the distance to start of packet
		// Will be updated later by incrementing with packet start value*/
		if(pack_info) {
			pack_info->end_ph_pos = (int)(c - src);
		}
		/* INDEX >> */
		
		if (cp->ppm == 1) {		/* PPM case */
			cp->ppm_len += cp->ppm_data-hd;
			cp->ppm_data = hd;
			return (c - src);
		}
		if (tcp->ppt == 1) {	/* PPT case */
			tcp->ppt_len+=tcp->ppt_data-hd;
			tcp->ppt_data = hd;
			return (c - src);
		}
		
		return (hd - src);
	}
	
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		
		if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
		
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			int included, increment, n, segno;
			opj_tcd_cblk_dec_t* cblk = &prc->cblks.dec[cblkno];
			/* if cblk not yet included before --> inclusion tagtree */
			if (!cblk->numsegs) {
				included = tgt_decode(bio, prc->incltree, cblkno, layno + 1);
				/* else one bit */
			} else {
				included = bio_read(bio, 1);
			}
			/* if cblk not included */
			if (!included) {
				cblk->numnewpasses = 0;
				continue;
			}
			/* if cblk not yet included --> zero-bitplane tagtree */
			if (!cblk->numsegs) {
				int i, numimsbs;
				for (i = 0; !tgt_decode(bio, prc->imsbtree, cblkno, i); i++) {
					;
				}
				numimsbs = i - 1;
				cblk->numbps = band->numbps - numimsbs;
				cblk->numlenbits = 3;
			}
			/* number of coding passes */
			cblk->numnewpasses = t2_getnumpasses(bio);
			increment = t2_getcommacode(bio);
			/* length indicator increment */
			cblk->numlenbits += increment;
			segno = 0;
			if (!cblk->numsegs) {
				t2_init_seg(cblk, segno, tcp->tccps[compno].cblksty, 1);
			} else {
				segno = cblk->numsegs - 1;
				if (cblk->segs[segno].numpasses == cblk->segs[segno].maxpasses) {
					++segno;
					t2_init_seg(cblk, segno, tcp->tccps[compno].cblksty, 0);
				}
			}
			n = cblk->numnewpasses;
			
			do {
				cblk->segs[segno].numnewpasses = int_min(cblk->segs[segno].maxpasses - cblk->segs[segno].numpasses, n);
				cblk->segs[segno].newlen = bio_read(bio, cblk->numlenbits + int_floorlog2(cblk->segs[segno].numnewpasses));
				n -= cblk->segs[segno].numnewpasses;
				if (n > 0) {
					++segno;
					t2_init_seg(cblk, segno, tcp->tccps[compno].cblksty, 0);
				}
			} while (n > 0);
		}
	}
	
	if (bio_inalign(bio)) {
		bio_destroy(bio);
		return -999;
	}
	
	hd += bio_numbytes(bio);
	bio_destroy(bio);
	
	/* EPH markers */
	if (tcp->csty & J2K_CP_CSTY_EPH) {
		if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
			opj_event_msg(t2->cinfo, EVT_ERROR, "Expected EPH marker\n");
			return -999;
		} else {
			hd += 2;
		}
	}

	/* << INDEX */
	/* End of packet header position. Currently only represents the distance to start of packet
	// Will be updated later by incrementing with packet start value*/
	if(pack_info) {
		pack_info->end_ph_pos = (int)(hd - src);
	}
	/* INDEX >> */
	
	if (cp->ppm==1) {
		cp->ppm_len+=cp->ppm_data-hd;
		cp->ppm_data = hd;
	} else if (tcp->ppt == 1) {
		tcp->ppt_len+=tcp->ppt_data-hd;
		tcp->ppt_data = hd;
	} else {
		c=hd;
	}
	
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		
		if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
		
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_dec_t* cblk = &prc->cblks.dec[cblkno];
			opj_tcd_seg_t *seg = NULL;
			if (!cblk->numnewpasses)
				continue;
			if (!cblk->numsegs) {
				seg = &cblk->segs[0];
				cblk->numsegs++;
				cblk->len = 0;
			} else {
				seg = &cblk->segs[cblk->numsegs - 1];
				if (seg->numpasses == seg->maxpasses) {
					seg++;
					cblk->numsegs++;
				}
			}
			
			do {
				if (c + seg->newlen > src + len) {
					return -999;
				}

#ifdef USE_JPWL
			/* we need here a j2k handle to verify if making a check to
			the validity of cblocks parameters is selected from user (-W) */

				/* let's check that we are not exceeding */
				if ((cblk->len + seg->newlen) > 8192) {
					opj_event_msg(t2->cinfo, EVT_WARNING,
						"JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
						seg->newlen, cblkno, precno, bandno, resno, compno);
					if (!JPWL_ASSUME) {
						opj_event_msg(t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
						return -999;
					}
					seg->newlen = 8192 - cblk->len;
					opj_event_msg(t2->cinfo, EVT_WARNING, "      - truncating segment to %d\n", seg->newlen);
					break;
				};

#endif /* USE_JPWL */
				
				cblk->data = (unsigned char*) opj_realloc(cblk->data, (cblk->len + seg->newlen) * sizeof(unsigned char));
				memcpy(cblk->data + cblk->len, c, seg->newlen);
				if (seg->numpasses == 0) {
					seg->data = &cblk->data;
					seg->dataindex = cblk->len;
				}
				c += seg->newlen;
				cblk->len += seg->newlen;
				seg->len += seg->newlen;
				seg->numpasses += seg->numnewpasses;
				cblk->numnewpasses -= seg->numnewpasses;
				if (cblk->numnewpasses > 0) {
					seg++;
					cblk->numsegs++;
				}
			} while (cblk->numnewpasses > 0);
		}
	}
	
	return (c - src);
}
Exemplo n.º 2
0
static bool t2_encode_packet(
               OPJ_UINT32 tileno,
               opj_tcd_tile_t * tile,
               opj_tcp_t * tcp,
               opj_pi_iterator_t *pi,
               OPJ_BYTE *dest,
               OPJ_UINT32 * p_data_written,
               OPJ_UINT32 length,
               opj_codestream_info_t *cstr_info)
{
  OPJ_UINT32 bandno, cblkno;
  OPJ_BYTE *c = dest;
  OPJ_UINT32 l_nb_bytes;
  OPJ_UINT32 compno = pi->compno;  /* component value */
  OPJ_UINT32 resno  = pi->resno;    /* resolution level value */
  OPJ_UINT32 precno = pi->precno;  /* precinct value */
  OPJ_UINT32 layno  = pi->layno;    /* quality layer value */
  OPJ_UINT32 l_nb_blocks;
  opj_tcd_band_t *band = 00;
  opj_tcd_cblk_enc_t* cblk = 00;
  opj_tcd_pass_t *pass = 00;

  opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
  opj_tcd_resolution_t *res = &tilec->resolutions[resno];

  opj_bio_t *bio = 00;  /* BIO component */

  /* <SOP 0xff91> */
  if (tcp->csty & J2K_CP_CSTY_SOP) {
    c[0] = 255;
    c[1] = 145;
    c[2] = 0;
    c[3] = 4;
    c[4] = (tile->packno % 65536) / 256;
    c[5] = (tile->packno % 65536) % 256;
    c += 6;
    length -= 6;
  }
  /* </SOP> */

  if (!layno) {
    band = res->bands;
    for
      (bandno = 0; bandno < res->numbands; ++bandno)
    {
      opj_tcd_precinct_t *prc = &band->precincts[precno];
      tgt_reset(prc->incltree);
      tgt_reset(prc->imsbtree);
      l_nb_blocks = prc->cw * prc->ch;
      for
        (cblkno = 0; cblkno < l_nb_blocks; ++cblkno)
      {
        opj_tcd_cblk_enc_t* cblk_v = &prc->cblks.enc[cblkno];
        cblk_v->numpasses = 0;
        tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk_v->numbps);
      }
      ++band;
    }
  }

  bio = bio_create();
  bio_init_enc(bio, c, length);
  bio_write(bio, 1, 1);    /* Empty header bit */

  /* Writing Packet header */
  band = res->bands;
  for
    (bandno = 0; bandno < res->numbands; ++bandno)
  {
    opj_tcd_precinct_t *prc = &band->precincts[precno];
    l_nb_blocks = prc->cw * prc->ch;
    cblk = prc->cblks.enc;
    for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno)
    {
      opj_tcd_layer_t *layer = &cblk->layers[layno];
      if
        (!cblk->numpasses && layer->numpasses)
      {
        tgt_setvalue(prc->incltree, cblkno, layno);
      }
      ++cblk;
    }
    cblk = prc->cblks.enc;
    for
      (cblkno = 0; cblkno < l_nb_blocks; cblkno++)
    {
      opj_tcd_layer_t *layer = &cblk->layers[layno];
      OPJ_UINT32 increment = 0;
      OPJ_UINT32 nump = 0;
      OPJ_UINT32 len = 0, passno;
      OPJ_UINT32 l_nb_passes;
      /* cblk inclusion bits */
      if (!cblk->numpasses) {
        tgt_encode(bio, prc->incltree, cblkno, layno + 1);
      } else {
        bio_write(bio, layer->numpasses != 0, 1);
      }
      /* if cblk not included, go to the next cblk  */
      if
        (!layer->numpasses)
      {
        ++cblk;
        continue;
      }
      /* if first instance of cblk --> zero bit-planes information */
      if
        (!cblk->numpasses)
      {
        cblk->numlenbits = 3;
        tgt_encode(bio, prc->imsbtree, cblkno, 999);
      }
      /* number of coding passes included */
      t2_putnumpasses(bio, layer->numpasses);
      l_nb_passes = cblk->numpasses + layer->numpasses;
      pass = cblk->passes +  cblk->numpasses;
      /* computation of the increase of the length indicator and insertion in the header     */
      for
        (passno = cblk->numpasses; passno < l_nb_passes; ++passno)
      {
        ++nump;
        len += pass->len;
        if
          (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1)
        {
          increment = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));
          len = 0;
          nump = 0;
        }
        ++pass;
      }
      t2_putcommacode(bio, increment);

      /* computation of the new Length indicator */
      cblk->numlenbits += increment;

      pass = cblk->passes +  cblk->numpasses;
      /* insertion of the codeword segment length */
      for
        (passno = cblk->numpasses; passno < l_nb_passes; ++passno)
      {
        nump++;
        len += pass->len;
        if
          (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1)
        {
          bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));
          len = 0;
          nump = 0;
        }
        ++pass;
      }
      ++cblk;
    }
    ++band;
  }

  if
    (bio_flush(bio))
  {
    bio_destroy(bio);
    return false;    /* modified to eliminate longjmp !! */
  }
  l_nb_bytes = bio_numbytes(bio);
  c += l_nb_bytes;
  length -= l_nb_bytes;
  bio_destroy(bio);

  /* <EPH 0xff92> */
  if (tcp->csty & J2K_CP_CSTY_EPH) {
    c[0] = 255;
    c[1] = 146;
    c += 2;
    length -= 2;
  }
  /* </EPH> */

  /* << INDEX */
  // End of packet header position. Currently only represents the distance to start of packet
  // Will be updated later by incrementing with packet start value
  if(cstr_info && cstr_info->index_write) {
    opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
    info_PK->end_ph_pos = (OPJ_INT32)(c - dest);
  }
  /* INDEX >> */

  /* Writing the packet body */
  band = res->bands;
  for
    (bandno = 0; bandno < res->numbands; bandno++)
  {
    opj_tcd_precinct_t *prc = &band->precincts[precno];
    l_nb_blocks = prc->cw * prc->ch;
    cblk = prc->cblks.enc;
    for
      (cblkno = 0; cblkno < l_nb_blocks; ++cblkno)
    {
      opj_tcd_layer_t *layer = &cblk->layers[layno];
      if
        (!layer->numpasses)
      {
        ++cblk;
        continue;
      }
      if
        (layer->len > length)
      {
        return false;
      }
      memcpy(c, layer->data, layer->len);
      cblk->numpasses += layer->numpasses;
      c += layer->len;
      length -= layer->len;
      /* << INDEX */
      if(cstr_info && cstr_info->index_write) {
        opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
        info_PK->disto += layer->disto;
        if (cstr_info->D_max < info_PK->disto) {
          cstr_info->D_max = info_PK->disto;
        }
      }
      ++cblk;
      /* INDEX >> */
    }
    ++band;
  }
  * p_data_written += (c - dest);
  return true;
}
Exemplo n.º 3
0
static int t2_encode_packet(opj_tcd_tile_t * tile, opj_tcp_t * tcp, opj_pi_iterator_t *pi, unsigned char *dest, int length, opj_codestream_info_t *cstr_info, int tileno) {
	int bandno, cblkno;
	unsigned char *c = dest;

	int compno = pi->compno;	/* component value */
	int resno  = pi->resno;		/* resolution level value */
	int precno = pi->precno;	/* precinct value */
	int layno  = pi->layno;		/* quality layer value */

	opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
	opj_tcd_resolution_t *res = &tilec->resolutions[resno];
	
	opj_bio_t *bio = NULL;	/* BIO component */
	
	/* <SOP 0xff91> */
	if (tcp->csty & J2K_CP_CSTY_SOP) {
		c[0] = 255;
		c[1] = 145;
		c[2] = 0;
		c[3] = 4;
		c[4] = (unsigned char)((tile->packno % 65536) / 256);
		c[5] = (unsigned char)((tile->packno % 65536) % 256);
		c += 6;
	}
	/* </SOP> */
	
	if (!layno) {
		for (bandno = 0; bandno < res->numbands; bandno++) {
			opj_tcd_band_t *band = &res->bands[bandno];
			opj_tcd_precinct_t *prc = &band->precincts[precno];
			tgt_reset(prc->incltree);
			tgt_reset(prc->imsbtree);
			for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
				opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
				cblk->numpasses = 0;
				tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);
			}
		}
	}
	
	bio = bio_create();
	bio_init_enc(bio, c, length);
	bio_write(bio, 1, 1);		/* Empty header bit */
	
	/* Writing Packet header */
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
			opj_tcd_layer_t *layer = &cblk->layers[layno];
			if (!cblk->numpasses && layer->numpasses) {
				tgt_setvalue(prc->incltree, cblkno, layno);
			}
		}
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
			opj_tcd_layer_t *layer = &cblk->layers[layno];
			int increment = 0;
			int nump = 0;
			int len = 0, passno;
			/* cblk inclusion bits */
			if (!cblk->numpasses) {
				tgt_encode(bio, prc->incltree, cblkno, layno + 1);
			} else {
				bio_write(bio, layer->numpasses != 0, 1);
			}
			/* if cblk not included, go to the next cblk  */
			if (!layer->numpasses) {
				continue;
			}
			/* if first instance of cblk --> zero bit-planes information */
			if (!cblk->numpasses) {
				cblk->numlenbits = 3;
				tgt_encode(bio, prc->imsbtree, cblkno, 999);
			}
			/* number of coding passes included */
			t2_putnumpasses(bio, layer->numpasses);
			
			/* computation of the increase of the length indicator and insertion in the header     */
			for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
				opj_tcd_pass_t *pass = &cblk->passes[passno];
				nump++;
				len += pass->len;
				if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
					increment = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));
					len = 0;
					nump = 0;
				}
			}
			t2_putcommacode(bio, increment);

			/* computation of the new Length indicator */
			cblk->numlenbits += increment;

			/* insertion of the codeword segment length */
			for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
				opj_tcd_pass_t *pass = &cblk->passes[passno];
				nump++;
				len += pass->len;
				if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
					bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));
					len = 0;
					nump = 0;
				}
			}
		}
	}

	if (bio_flush(bio)) {
		bio_destroy(bio);
		return -999;		/* modified to eliminate longjmp !! */
	}

	c += bio_numbytes(bio);
	bio_destroy(bio);
	
	/* <EPH 0xff92> */
	if (tcp->csty & J2K_CP_CSTY_EPH) {
		c[0] = 255;
		c[1] = 146;
		c += 2;
	}
	/* </EPH> */

	/* << INDEX */
	/* End of packet header position. Currently only represents the distance to start of packet
	// Will be updated later by incrementing with packet start value */
	if(cstr_info && cstr_info->index_write) {
		opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
		info_PK->end_ph_pos = (int)(c - dest);
	}
	/* INDEX >> */
	
	/* Writing the packet body */
	
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
			opj_tcd_layer_t *layer = &cblk->layers[layno];
			if (!layer->numpasses) {
				continue;
			}
			if (c + layer->len > dest + length) {
				return -999;
			}
			
			memcpy(c, layer->data, layer->len);
			cblk->numpasses += layer->numpasses;
			c += layer->len;
			/* << INDEX */ 
			if(cstr_info && cstr_info->index_write) {
				opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
				info_PK->disto += layer->disto;
				if (cstr_info->D_max < info_PK->disto) {
					cstr_info->D_max = info_PK->disto;
				}
			}
			/* INDEX >> */
		}
	}
	
	return (c - dest);
}
Exemplo n.º 4
0
static int t2_encode_packet(opj_tcd_tile_t * tile, opj_tcp_t * tcp, opj_pi_iterator_t *pi, unsigned char *dest, int length, opj_image_info_t * image_info, int tileno) {
	int bandno, cblkno;
	unsigned char *sop = 0, *eph = 0;
	unsigned char *c = dest;

	int compno = pi->compno;	/* component value */
	int resno  = pi->resno;		/* resolution level value */
	int precno = pi->precno;	/* precinct value */
	int layno  = pi->layno;		/* quality layer value */

	opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
	opj_tcd_resolution_t *res = &tilec->resolutions[resno];
	
	opj_bio_t *bio = NULL;	/* BIO component */
	
	/* <SOP 0xff91> */
	if (tcp->csty & J2K_CP_CSTY_SOP) {
		sop = (unsigned char *) opj_malloc(6 * sizeof(unsigned char));
		sop[0] = 255;
		sop[1] = 145;
		sop[2] = 0;
		sop[3] = 4;
		sop[4] = (image_info->num % 65536) / 256;
		sop[5] = (image_info->num % 65536) % 256;
		memcpy(c, sop, 6);
		opj_free(sop);
		c += 6;
	}
	/* </SOP> */
	
	if (!layno) {
		for (bandno = 0; bandno < res->numbands; bandno++) {
			opj_tcd_band_t *band = &res->bands[bandno];
			opj_tcd_precinct_t *prc = &band->precincts[precno];
			tgt_reset(prc->incltree);
			tgt_reset(prc->imsbtree);
			for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
				opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
				cblk->numpasses = 0;
				tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);
			}
		}
	}
	
	bio = bio_create();
	bio_init_enc(bio, c, length);
	bio_write(bio, 1, 1);		/* Empty header bit */
	
	/* Writing Packet header */
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
			opj_tcd_layer_t *layer = &cblk->layers[layno];
			if (!cblk->numpasses && layer->numpasses) {
				tgt_setvalue(prc->incltree, cblkno, layno);
			}
		}
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
			opj_tcd_layer_t *layer = &cblk->layers[layno];
			int increment = 0;
			int nump = 0;
			int len = 0, passno;
			/* cblk inclusion bits */
			if (!cblk->numpasses) {
				tgt_encode(bio, prc->incltree, cblkno, layno + 1);
			} else {
				bio_write(bio, layer->numpasses != 0, 1);
			}
			/* if cblk not included, go to the next cblk  */
			if (!layer->numpasses) {
				continue;
			}
			/* if first instance of cblk --> zero bit-planes information */
			if (!cblk->numpasses) {
				cblk->numlenbits = 3;
				tgt_encode(bio, prc->imsbtree, cblkno, 999);
			}
			/* number of coding passes included */
			t2_putnumpasses(bio, layer->numpasses);
			
			/* computation of the increase of the length indicator and insertion in the header     */
			for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
				opj_tcd_pass_t *pass = &cblk->passes[passno];
				nump++;
				len += pass->len;
				if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
					increment = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));
					len = 0;
					nump = 0;
				}
			}
			t2_putcommacode(bio, increment);

			/* computation of the new Length indicator */
			cblk->numlenbits += increment;

			/* insertion of the codeword segment length */
			for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
				opj_tcd_pass_t *pass = &cblk->passes[passno];
				nump++;
				len += pass->len;
				if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
					bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));
					len = 0;
					nump = 0;
				}
			}
		}
	}
	
	if (bio_flush(bio)) {
		return -999;		/* modified to eliminate longjmp !! */
	}
	
	c += bio_numbytes(bio);

	bio_destroy(bio);
	
	/* <EPH 0xff92> */
	if (tcp->csty & J2K_CP_CSTY_EPH) {
		eph = (unsigned char *) opj_malloc(2 * sizeof(unsigned char));
		eph[0] = 255;
		eph[1] = 146;
		memcpy(c, eph, 2);
		opj_free(eph);
		c += 2;
	}
	/* </EPH> */
	
	/* Writing the packet body */
	
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
			opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
			opj_tcd_layer_t *layer = &cblk->layers[layno];
			if (!layer->numpasses) {
				continue;
			}
			if (c + layer->len > dest + length) {
				return -999;
			}
			
			memcpy(c, layer->data, layer->len);
			cblk->numpasses += layer->numpasses;
			c += layer->len;
			/* ADD for index Cfr. Marcela --> delta disto by packet */
			if(image_info && image_info->index_write && image_info->index_on) {
				opj_tile_info_t *info_TL = &image_info->tile[tileno];
				opj_packet_info_t *info_PK = &info_TL->packet[image_info->num];
				info_PK->disto += layer->disto;
				if (image_info->D_max < info_PK->disto) {
					image_info->D_max = info_PK->disto;
				}
			}
			/* </ADD> */
		}
	}
	
	return (c - dest);
}
Exemplo n.º 5
0
int main(int argc, char **argv)
{
  int len;
  int NumResolution, numD_min;	/*   NumResolution : number of resolution                     */
  int Tile_arg;			/*   Tile_arg = 0 (not in argument) ou = 1 (in argument)      */
  int CSty;			/*   CSty : coding style                                      */
  int Prog_order;		/*   progression order (default LRCP)                         */
  char progression[4];
  int numpocs, numpocs_tile;	/*   Number of progression order change (POC) default 0       */
  int prcw_init[J2K_MAXRLVLS];	/*   Initialisation Precinct width                            */
  int prch_init[J2K_MAXRLVLS];	/*   Initialisation Precinct height                           */
  //int prcw_init, prch_init;                     /*   Initialisation precincts' size                           */
  int cblockw_init, cblockh_init;	/*   Initialisation codeblocks' size                          */
  int mode, value;		/*   Mode switch (cblk_style)                                 */
  int subsampling_dx, subsampling_dy;	/* subsampling value for dx and dy                    */
  int ROI_compno, ROI_shift;	/*   region of interrest                                      */
  int Dim[2];			/*   portion of the image coded                               */
  int TX0, TY0;			/*   tile off-set                                             */
  j2k_image_t img;
  j2k_cp_t cp, cp_init;		/*   cp_init is used to initialise in multiple tiles          */
  j2k_tcp_t *tcp, *tcp_init;	/*   tcp_init is used to initialise in multiple tile          */
  j2k_poc_t POC[32];		/*   POC : used in case of Progression order change           */
  j2k_poc_t *tcp_poc;
  j2k_tccp_t *tccp;
  
  int i, tileno, j;
  char *infile = 0;
  char *outfile = 0;
  char *index = 0;
  char *s, S1, S2, S3;
  int ir = 0;
  int res_spec = 0;		/*   For various precinct sizes specification                 */
  char sep;
  char *outbuf, *out;
  FILE *f;


  /* default value */
  /* ------------- */
  NumResolution = 6;
  CSty = 0;
  cblockw_init = 64;
  cblockh_init = 64;
  cp.tw = 1;
  cp.th = 1;
  cp.index_on = 0;
  Prog_order = 0;
  numpocs = 0;
  mode = 0;
  subsampling_dx = 1;
  subsampling_dy = 1;
  ROI_compno = -1;		/* no ROI */
  ROI_shift = 0;
  Dim[0] = 0;
  Dim[1] = 0;
  TX0 = 0;
  TY0 = 0;
  cp.comment = "Created by OpenJPEG version 0.9";
  cp.disto_alloc = 0;
  cp.fixed_alloc = 0;
  cp.fixed_quality = 0;		//add fixed_quality
  /* img.PPT=0; */

  Tile_arg = 0;
  cp_init.tcps = (j2k_tcp_t *) malloc(sizeof(j2k_tcp_t));	/* initialisation if only one tile */
  tcp_init = &cp_init.tcps[0];
  tcp_init->numlayers = 0;
  jpwl_cp_init(&jpwl_cp);

  cp.intermed_file=0;
  use_index=0;

  while (1) {
    int c = getopt(argc, argv,
		"i:o:r:q:f:t:n:c:b:x:p:s:d:h:P:S:E:M:R:T:C:I:W,F");
    if (c == -1)
      break;
    switch (c) {
    case 'i':			/* IN fill */
      infile = optarg;
      s = optarg;
      while (*s) {
	s++;
      }
      s--;
      S3 = *s;
      s--;
      S2 = *s;
      s--;
      S1 = *s;

      if ((S1 == 'p' && S2 == 'g' && S3 == 'x')
	  || (S1 == 'P' && S2 == 'G' && S3 == 'X')) {
	cp.image_type = 0;
	break;
      }

      if ((S1 == 'p' && S2 == 'n' && S3 == 'm')
	  || (S1 == 'P' && S2 == 'N' && S3 == 'M')
	  || (S1 == 'p' && S2 == 'g' && S3 == 'm') || (S1 == 'P'
						       && S2 == 'G'
						       && S3 == 'M')
	  || (S1 == 'P' && S2 == 'P' && S3 == 'M') || (S1 == 'p'
						       && S2 == 'p'
						       && S3 == 'm')) {
	cp.image_type = 1;
	break;
      }

      if ((S1 == 'b' && S2 == 'm' && S3 == 'p')
	  || (S1 == 'B' && S2 == 'M' && S3 == 'P')) {
	cp.image_type = 2;
	break;
      }
      fprintf(stderr,
	      "!! Unrecognized format for infile : %c%c%c [accept only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp] !!\n\n",
	      S1, S2, S3);
      return 1;
      break;
      /* ----------------------------------------------------- */
    case 'o':			/* OUT fill */
      outfile = optarg;
      while (*outfile) {
	outfile++;
      }
      outfile--;
      S3 = *outfile;
      outfile--;
      S2 = *outfile;
      outfile--;
      S1 = *outfile;
      
      outfile = optarg;
      
      if ((S1 == 'j' && S2 == '2' && S3 == 'k') || (S1 == 'J' && S2 == '2' && S3 == 'K'))
	cp.JPEG2000_format=0;
      else if ((S1 == 'j' && S2 == 'p' && S3 == '2') || (S1 == 'J' && S2 == 'P' && S3 == '2'))
	cp.JPEG2000_format=1;
      else    {
	fprintf(stderr,"Unknown output format image *.%c%c%c [only *.j2k, *.jp2]!! \n",S1,S2,S3);
	return 1;
      }
      
      
      
      break;
      /* ----------------------------------------------------- */
    case 'r':			/* rates rates/distorsion */
      s = optarg;
      while (sscanf(s, "%d", &tcp_init->rates[tcp_init->numlayers])
	     == 1) {
	tcp_init->numlayers++;
	while (*s && *s != ',') {
	  s++;
	}
	if (!*s)
	  break;
	s++;
      }
      cp.disto_alloc = 1;
      cp.matrice = NULL;
      break;
      /* ----------------------------------------------------- */
    case 'q':			/* add fixed_quality */
      s = optarg;
      while (sscanf(s, "%f", &tcp_init->distoratio[tcp_init->numlayers]) ==
	     1) {
	tcp_init->numlayers++;
	while (*s && *s != ',') {
	  s++;
	}
	if (!*s)
	  break;
	s++;
      }
      cp.fixed_quality = 1;
      cp.matrice = NULL;
      break;
      /* dda */
      /* ----------------------------------------------------- */
    case 'f':			/* mod fixed_quality (before : -q) */
      s = optarg;
      sscanf(s, "%d", &tcp_init->numlayers);
      s++;
      if (tcp_init->numlayers > 9)
	s++;
      cp.matrice =
	(int *) malloc(tcp_init->numlayers * NumResolution * 3 *
		       sizeof(int));
      s = s + 2;
      for (i = 0; i < tcp_init->numlayers; i++) {
	tcp_init->rates[i] = 1;
	sscanf(s, "%d,", &cp.matrice[i * NumResolution * 3]);
	s += 2;
	if (cp.matrice[i * NumResolution * 3] > 9)
	  s++;
	cp.matrice[i * NumResolution * 3 + 1] = 0;
	cp.matrice[i * NumResolution * 3 + 2] = 0;
	for (j = 1; j < NumResolution; j++) {
	  sscanf(s, "%d,%d,%d",
		 &cp.matrice[i * NumResolution * 3 + j * 3 + 0],
		 &cp.matrice[i * NumResolution * 3 + j * 3 + 1],
		 &cp.matrice[i * NumResolution * 3 + j * 3 + 2]);
	  s += 6;
	  if (cp.matrice[i * NumResolution * 3 + j * 3] > 9)
	    s++;
	  if (cp.matrice[i * NumResolution * 3 + j * 3 + 1] > 9)
	    s++;
	  if (cp.matrice[i * NumResolution * 3 + j * 3 + 2] > 9)
	    s++;
	}
	if (i < tcp_init->numlayers - 1)
	  s++;
      }
      cp.fixed_alloc = 1;
      break;
      /* ----------------------------------------------------- */
    case 't':			/* tiles */
      sscanf(optarg, "%d,%d", &cp.tdx, &cp.tdy);
      Tile_arg = 1;
      break;
      /* ----------------------------------------------------- */
    case 'n':			/* resolution */
      sscanf(optarg, "%d", &NumResolution);
      break;
      /* ----------------------------------------------------- */
    case 'c':			/* precinct dimension */
      s = optarg;
      do {
	sep = 0;
	sscanf(s, "[%d,%d]%c", &prcw_init[res_spec],
	       &prch_init[res_spec], &sep);
	CSty |= 0x01;
	res_spec++;
	s = strpbrk(s, "]") + 2;
      } while (sep == ',');
      break;
      /* ----------------------------------------------------- */
    case 'b':			/* code-block dimension */
      sscanf(optarg, "%d,%d", &cblockw_init, &cblockh_init);
      if (cblockw_init * cblockh_init > 4096 || cblockw_init > 1024
	  || cblockw_init < 4 || cblockh_init > 1024 || cblockh_init < 4) {
	fprintf(stderr,
		"!! Size of code_block error (option -b) !!\n\nRestriction :\n    * width*height<=4096\n    * 4<=width,height<= 1024\n\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 'x':			/* creation of index file */
      index = optarg;
      cp.index_on = 1;
	  use_index = 1;
      break;
      /* ----------------------------------------------------- */
    case 'p':			/* progression order */
      s = optarg;
      for (i = 0; i < 4; i++) {
	progression[i] = *s;
	s++;
      }
      Prog_order = give_progression(progression);

      if (Prog_order == -1) {
	fprintf(stderr,
		"Unrecognized progression order [LRCP, RLCP, RPCL, PCRL, CPRL] !!\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 's':			/* subsampling factor */
      if (sscanf(optarg, "%d,%d", &subsampling_dx, &subsampling_dy)
	  != 2) {
	fprintf(stderr,
		"'-s' sub-sampling argument error !  [-s dx,dy]\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 'd':			/* coordonnate of the reference grid */
      if (sscanf(optarg, "%d,%d", &Dim[0], &Dim[1]) != 2) {
	fprintf(stderr,
		"-d 'coordonnate of the reference grid' argument error !! [-d x0,y0]\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 'h':			/* Display an help description */
      help_display();
      return 0;
      break;
      /* ----------------------------------------------------- */
    case 'P':			/* POC */
      fprintf(stderr, "/----------------------------------\\\n");
      fprintf(stderr, "|  POC option not fully tested !!  |\n");
      fprintf(stderr, "\\----------------------------------/\n");

      s = optarg;
      while (sscanf(s, "T%d=%d,%d,%d,%d,%d,%s", &POC[numpocs].tile,
		    &POC[numpocs].resno0, &POC[numpocs].compno0,
		    &POC[numpocs].layno1, &POC[numpocs].resno1,
		    &POC[numpocs].compno1, POC[numpocs].progorder) == 7) {
	POC[numpocs].prg = give_progression(POC[numpocs].progorder);
	/* POC[numpocs].tile; */
	numpocs++;
	while (*s && *s != '/') {
	  s++;
	}
	if (!*s)
	  break;
	s++;
      }
      break;
      /* ------------------------------------------------------ */
    case 'S':			/* SOP marker */
      CSty |= 0x02;
      break;
      /* ------------------------------------------------------ */
    case 'E':			/* EPH marker */
      CSty |= 0x04;
      break;
      /* ------------------------------------------------------ */
    case 'M':			/* Mode switch pas tous au point !! */
      if (sscanf(optarg, "%d", &value) == 1) {
	for (i = 0; i <= 5; i++) {
	  int cache = value & (1 << i);
	  if (cache)
	    mode |= (1 << i);
	}
      }
      break;
      /* ------------------------------------------------------ */
    case 'R':			/* ROI */
      if (sscanf(optarg, "OI:c=%d,U=%d", &ROI_compno, &ROI_shift) != 2) {
	fprintf(stderr, "ROI error !! [-ROI:c='compno',U='shift']\n");
	return 1;
      }
      break;
      /* ------------------------------------------------------ */
    case 'T':			/* Tile offset */
      if (sscanf(optarg, "%d,%d", &TX0, &TY0) != 2) {
	fprintf(stderr, "-T 'tile offset' argument error !! [-T X0,Y0]");
	return 1;
      }
      break;
      /* ------------------------------------------------------ */
    case 'C':			/* Add a comment */
      cp.comment = optarg;
      break;
      /* ------------------------------------------------------ */
    case 'I':			/* reversible or not */
      ir = 1;
      break;
	   /* ------------------------------------------------------ */
	case 'W':			/* version 0.2 enables only EPC on main header and epb in fixed way*/
	  jpwl_cp.JPWL_on = 1;
	  break;
	   /* ------------------------------------------------------ */
	case 'F':			/* use intermed files*/
	  cp.intermed_file=1;
	  break;
	   /* ------------------------------------------------------ */
    default:
      return 1;
    }
  }

  cp.tx0 = TX0;
  cp.ty0 = TY0;

  // inserici i parametri jpwl
  
  if(jpwl_cp.JPWL_on)
	get_jpwl_cp(& cp);


  


  /* Error messages */
  /* -------------- */
  if (!infile || !outfile) {
    fprintf(stderr,
	    "usage: image_to_j2k -i image-file -o j2k/jp2-file (+ options)\n");
    return 1;
  }

  if ((cp.disto_alloc || cp.fixed_alloc || cp.fixed_quality)&&(!(cp.disto_alloc ^ cp.fixed_alloc ^ cp.fixed_quality))) {
    fprintf(stderr,
	    "Error: options -r -q and -f can not be used together !!\n");
    return 1;
  } // mod fixed_quality

  /* if no rate entered, lossless by default */
  if (tcp_init->numlayers == 0) {
    tcp_init->rates[tcp_init->numlayers] = 1;
    tcp_init->numlayers++;
    cp.disto_alloc = 1;
  }

  if (TX0 > Dim[0] || TY0 > Dim[1]) {
    fprintf(stderr,
	    "Error: Tile offset dimension is unnappropriate --> TX0(%d)<=IMG_X0(%d) TYO(%d)<=IMG_Y0(%d) \n",
	    TX0, Dim[0], TY0, Dim[1]);
    return 1;
  }

  for (i = 0; i < numpocs; i++) {
    if (POC[i].prg == -1) {
      fprintf(stderr,
	      "Unrecognized progression order in option -P (POC n %d) [LRCP, RLCP, RPCL, PCRL, CPRL] !!\n",
	      i + 1);
    }
  }

  switch (cp.image_type) {
  case 0:
    if (Tile_arg) {
      if (!pgxtoimage
	  (infile, &img, cp.tdy, subsampling_dx, subsampling_dy, Dim,
	   cp)) {
	fprintf(stderr, "not a pgx file\n");
	return 1;
      }
    } else {
      if (!pgxtoimage
	  (infile, &img, -1, subsampling_dx, subsampling_dy, Dim, cp)) {
	fprintf(stderr, " not a pgx file\n");
	return 1;
      }
    }
    break;

  case 1:
    if (!pnmtoimage(infile, &img, subsampling_dx, subsampling_dy, Dim)) {
      fprintf(stderr, " not a pnm file\n");
      return 1;
    }
    break;

  case 2:
    if (!bmptoimage(infile, &img, subsampling_dx, subsampling_dy, Dim)) {
      fprintf(stderr, " not a bmp file\n");
      return 1;
    }
    break;
  }
  /* to respect profile - 0 */
  /* ---------------------- */
  numD_min = 0;
  /*   while (int_ceildiv(img.x1,(1<<numD_min))-int_ceildiv(img.x0,(1<<numD_min))>120 || int_ceildiv(img.y1,(1<<numD_min))-int_ceildiv(img.y0,(1<<numD_min))>160) numD_min++;
     if ((numD_min+1)>NumResolution)
     {
     fprintf(stderr,"\n********************************************************************************\n\n");
     fprintf(stderr,  "In view to respect Profile-0, the number of resolution used is %d in place of %d\n\n",numD_min+1,NumResolution);
     fprintf(stderr,  "********************************************************************************\n\n");
     NumResolution=numD_min+1;
     } */

  if (Tile_arg == 1) {
    cp.tw = int_ceildiv(img.x1 - cp.tx0, cp.tdx);
    cp.th = int_ceildiv(img.y1 - cp.ty0, cp.tdy);
  } else {
    cp.tdx = img.x1 - cp.tx0;
    cp.tdy = img.y1 - cp.ty0;
  }
 
  /* Initialization for PPM marker */
  cp.ppm = 0;
  cp.ppm_data = NULL;
  cp.ppm_previous = 0;
  cp.ppm_store = 0;

  /* Init the mutiple tiles */
  /* ---------------------- */
  cp.tcps = (j2k_tcp_t *) malloc(cp.tw * cp.th * sizeof(j2k_tcp_t));

  for (tileno = 0; tileno < cp.tw * cp.th; tileno++) {
    tcp = &cp.tcps[tileno];
    tcp->numlayers = tcp_init->numlayers;
    for (j = 0; j < tcp->numlayers; j++) {
      if (cp.fixed_quality)   // add fixed_quality
	tcp->distoratio[j] = tcp_init->distoratio[j];
      else
	tcp->rates[j] = tcp_init->rates[j];
    }
    tcp->csty = CSty;
    tcp->prg = Prog_order;
    tcp->mct = img.numcomps == 3 ? 1 : 0;
    tcp->ppt = 0;
    tcp->ppt_data = NULL;
    tcp->ppt_store = 0;

    numpocs_tile = 0;
    tcp->POC = 0;
    if (numpocs) {
      /* intialisation of POC */
      tcp->POC = 1;
      for (i = 0; i < numpocs; i++) {
	if (tileno == POC[i].tile - 1 || POC[i].tile == -1) {
	  tcp_poc = &tcp->pocs[numpocs_tile];
	  tcp_poc->resno0 = POC[numpocs_tile].resno0;
	  tcp_poc->compno0 = POC[numpocs_tile].compno0;
	  tcp_poc->layno1 = POC[numpocs_tile].layno1;
	  tcp_poc->resno1 = POC[numpocs_tile].resno1;
	  tcp_poc->compno1 = POC[numpocs_tile].compno1;
	  tcp_poc->prg = POC[numpocs_tile].prg;
	  tcp_poc->tile = POC[numpocs_tile].tile;
	  numpocs_tile++;
	}
      }
    }
    tcp->numpocs = numpocs_tile;
    tcp->tccps = (j2k_tccp_t *) malloc(img.numcomps * sizeof(j2k_tccp_t));

    for (i = 0; i < img.numcomps; i++) {
      tccp = &tcp->tccps[i];
      tccp->csty = CSty & 0x01;	/* 0 => one precinct || 1 => custom precinct  */
      tccp->numresolutions = NumResolution;
      tccp->cblkw = int_floorlog2(cblockw_init);
      tccp->cblkh = int_floorlog2(cblockh_init);
      tccp->cblksty = mode;
      tccp->qmfbid = ir ? 0 : 1;
      tccp->qntsty = ir ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT;
      tccp->numgbits = 2;
      if (i == ROI_compno)
	tccp->roishift = ROI_shift;
      else
	tccp->roishift = 0;
      if (CSty & J2K_CCP_CSTY_PRT) {
	int p = 0;
	for (j = tccp->numresolutions - 1; j >= 0; j--) {
	  if (p < res_spec) {
	    if (prcw_init[p] < 1)
	      tccp->prcw[j] = 1;
	    else
	      tccp->prcw[j] = int_floorlog2(prcw_init[p]);

	    if (prch_init[p] < 1)
	      tccp->prch[j] = 1;
	    else
	      tccp->prch[j] = int_floorlog2(prch_init[p]);
	  } else {
	    int size_prcw, size_prch;
	    size_prcw = prcw_init[res_spec - 1] >> (p - (res_spec - 1));
	    size_prch = prch_init[res_spec - 1] >> (p - (res_spec - 1));
	    if (size_prcw < 1)
	      tccp->prcw[j] = 1;
	    else
	      tccp->prcw[j] = int_floorlog2(size_prcw);
	    if (size_prch < 1)
	      tccp->prch[j] = 1;
	    else
	      tccp->prch[j] = int_floorlog2(size_prch);
	  }
	  p++;
	  /*printf("\nsize precinct pour level %d : %d,%d\n", j,
		 tccp->prcw[j], tccp->prch[j]);*/
	}
      } else {
	for (j = 0; j < tccp->numresolutions; j++) {
	  tccp->prcw[j] = 15;
	  tccp->prch[j] = 15;
	}
      }
      calc_explicit_stepsizes(tccp, img.comps[i].prec);
    }
Exemplo n.º 6
0
int main(int argc, char **argv)
{
  int NumResolution, numD_min;	/*   NumResolution : number of resolution                     */
  int Tile_arg;			/*   Tile_arg = 0 (not in argument) ou = 1 (in argument)      */
  int CSty;			/*   CSty : coding style                                      */
  int Prog_order;		/*   progression order (default LRCP)                         */
  char progression[4];
  int numpocs, numpocs_tile;	/*   Number of progression order change (POC) default 0       */
  int prcw_init[J2K_MAXRLVLS];	/*   Initialisation Precinct width                            */
  int prch_init[J2K_MAXRLVLS];	/*   Initialisation Precinct height                           */
  //int prcw_init, prch_init;                     /*   Initialisation precincts' size                           */
  int cblockw_init, cblockh_init;	/*   Initialisation codeblocks' size                          */
  int mode, value;		/*   Mode switch (cblk_style)                                 */
  int subsampling_dx, subsampling_dy;	/* subsampling value for dx and dy                    */
  int ROI_compno, ROI_shift;	/*   region of interrest                                      */
  int Dim[2];			/*   portion of the image coded                               */
  int TX0, TY0;			/*   tile off-set                                             */
  mj2_movie_t movie;
  j2k_cp_t cp, cp_init;		/*   cp_init is used to initialise in multiple tiles          */
  j2k_tcp_t *tcp, *tcp_init;	/*   tcp_init is used to initialise in multiple tile          */
  j2k_poc_t POC[32];		/*   POC : used in case of Progression order change           */
  j2k_poc_t *tcp_poc;
  j2k_tccp_t *tccp;
  int i, tileno, l, j;
  char *infile = 0;
  char *outfile = 0;
  char *index = 0;
  char *s, S1, S2, S3;
  char *buf;
  int ir = 0;
  int res_spec = 0;		/*   For various precinct sizes specification                 */
  char sep;
  int w;			/*   Width of YUV file                                        */
  int h;			/*   Height of YUV file                                       */
  int CbCr_subsampling_dx;	/*   Sample rate of YUV 4:4:4 4:2:2 or 4:2:0                  */
  int CbCr_subsampling_dy;	/*   Sample rate of YUV 4:4:4 4:2:2 or 4:2:0                  */
  int frame_rate;		/*   Video Frame Rate                                         */
  int numcomps;			/*   In YUV files, numcomps always considered as 3            */
  int prec;			/*   In YUV files, precision always considered as 8           */
  int x1, y1,  len, jp2c_initpos, m, k, pos;
  long mdat_initpos, offset;
  FILE *mj2file, *yuvfile;
  unsigned int sampleno;
  j2k_image_t img;
  
  /* default value */
  /* ------------- */
  NumResolution = 6;
  CSty = 0;
  cblockw_init = 64;
  cblockh_init = 64;
  cp.tw = 1;
  cp.th = 1;
  cp.index_on = 0;
  Prog_order = 0;
  numpocs = 0;
  mode = 0;
  subsampling_dx = 1;
  subsampling_dy = 1;
  ROI_compno = -1;		/* no ROI */
  ROI_shift = 0;
  Dim[0] = 0;
  Dim[1] = 0;
  TX0 = 0;
  TY0 = 0;
  cp.comment = NULL;
  cp.disto_alloc = 0;
  cp.fixed_alloc = 0;
  cp.fixed_quality = 0;		//add fixed_quality
  w = 352;			// CIF default value
  h = 288;			// CIF default value
  CbCr_subsampling_dx = 2;	// CIF default value
  CbCr_subsampling_dy = 2;	// CIF default value
  frame_rate = 25;
  
  
  Tile_arg = 0;
  cp_init.tcps = (j2k_tcp_t *) malloc(sizeof(j2k_tcp_t));	/* initialisation if only one tile */
  tcp_init = &cp_init.tcps[0];
  tcp_init->numlayers = 0;
  
  cp.intermed_file = 0;		// Don't store each tile in a file during processing 
  
  while (1) {
    int c = getopt(argc, argv,
      "i:o:r:q:f:t:n:c:b:x:p:s:d:h:P:S:E:M:R:T:C:I:W:F:");
    if (c == -1)
      break;
    switch (c) {
    case 'i':			/* IN fill */
      infile = optarg;
      s = optarg;
      while (*s) {
	s++;
      }
      s--;
      S3 = *s;
      s--;
      S2 = *s;
      s--;
      S1 = *s;
      
      if ((S1 == 'y' && S2 == 'u' && S3 == 'v')
	|| (S1 == 'Y' && S2 == 'U' && S3 == 'V')) {
	cp.decod_format = YUV_DFMT;
	break;
      }
      fprintf(stderr,
	"!! Unrecognized format for infile : %c%c%c [accept only *.yuv] !!\n\n",
	S1, S2, S3);
      return 1;
      break;
      /* ----------------------------------------------------- */
    case 'o':			/* OUT fill */
      outfile = optarg;
      while (*outfile) {
	outfile++;
      }
      outfile--;
      S3 = *outfile;
      outfile--;
      S2 = *outfile;
      outfile--;
      S1 = *outfile;
      
      outfile = optarg;
      
      if ((S1 == 'm' && S2 == 'j' && S3 == '2')
	|| (S1 == 'M' && S2 == 'J' && S3 == '2'))
	cp.cod_format = MJ2_CFMT;
      else {
	fprintf(stderr,
	  "Unknown output format image *.%c%c%c [only *.mj2]!! \n",
	  S1, S2, S3);
	return 1;
      }
      
      
      
      break;
      /* ----------------------------------------------------- */
    case 'r':			/* rates rates/distorsion */
      s = optarg;
      while (sscanf(s, "%d", &tcp_init->rates[tcp_init->numlayers])
	== 1) {
	tcp_init->numlayers++;
	while (*s && *s != ',') {
	  s++;
	}
	if (!*s)
	  break;
	s++;
      }
      cp.disto_alloc = 1;
      cp.matrice = NULL;
      break;
      /* ----------------------------------------------------- */
    case 'q':			/* add fixed_quality */
      s = optarg;
      while (sscanf
	(s, "%f", &tcp_init->distoratio[tcp_init->numlayers]) == 1) {
	tcp_init->numlayers++;
	while (*s && *s != ',') {
	  s++;
	}
	if (!*s)
	  break;
	s++;
      }
      cp.fixed_quality = 1;
      cp.matrice = NULL;
      break;
      /* dda */
      /* ----------------------------------------------------- */
    case 'f':			/* mod fixed_quality (before : -q) */
      s = optarg;
      sscanf(s, "%d", &tcp_init->numlayers);
      s++;
      if (tcp_init->numlayers > 9)
	s++;
      cp.matrice =
	(int *) malloc(tcp_init->numlayers * NumResolution * 3 *
	sizeof(int));
      s = s + 2;
      for (i = 0; i < tcp_init->numlayers; i++) {
	tcp_init->rates[i] = 1;
	sscanf(s, "%d,", &cp.matrice[i * NumResolution * 3]);
	s += 2;
	if (cp.matrice[i * NumResolution * 3] > 9)
	  s++;
	cp.matrice[i * NumResolution * 3 + 1] = 0;
	cp.matrice[i * NumResolution * 3 + 2] = 0;
	for (j = 1; j < NumResolution; j++) {
	  sscanf(s, "%d,%d,%d",
	    &cp.matrice[i * NumResolution * 3 + j * 3 + 0],
	    &cp.matrice[i * NumResolution * 3 + j * 3 + 1],
	    &cp.matrice[i * NumResolution * 3 + j * 3 + 2]);
	  s += 6;
	  if (cp.matrice[i * NumResolution * 3 + j * 3] > 9)
	    s++;
	  if (cp.matrice[i * NumResolution * 3 + j * 3 + 1] > 9)
	    s++;
	  if (cp.matrice[i * NumResolution * 3 + j * 3 + 2] > 9)
	    s++;
	}
	if (i < tcp_init->numlayers - 1)
	  s++;
      }
      cp.fixed_alloc = 1;
      break;
      /* ----------------------------------------------------- */
    case 't':			/* tiles */
      sscanf(optarg, "%d,%d", &cp.tdx, &cp.tdy);
      Tile_arg = 1;
      break;
      /* ----------------------------------------------------- */
    case 'n':			/* resolution */
      sscanf(optarg, "%d", &NumResolution);
      break;
      /* ----------------------------------------------------- */
    case 'c':			/* precinct dimension */
      s = optarg;
      do {
	sep = 0;
	sscanf(s, "[%d,%d]%c", &prcw_init[res_spec],
	  &prch_init[res_spec], &sep);
	CSty |= 0x01;
	res_spec++;
	s = strpbrk(s, "]") + 2;
      } while (sep == ',');
      break;
      /* ----------------------------------------------------- */
    case 'b':			/* code-block dimension */
      sscanf(optarg, "%d,%d", &cblockw_init, &cblockh_init);
      if (cblockw_init * cblockh_init > 4096 || cblockw_init > 1024
	|| cblockw_init < 4 || cblockh_init > 1024 || cblockh_init < 4) {
	fprintf(stderr,
	  "!! Size of code_block error (option -b) !!\n\nRestriction :\n    * width*height<=4096\n    * 4<=width,height<= 1024\n\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 'x':			/* creation of index file */
      index = optarg;
      cp.index_on = 1;
      break;
      /* ----------------------------------------------------- */
    case 'p':			/* progression order */
      s = optarg;
      for (i = 0; i < 4; i++) {
	progression[i] = *s;
	s++;
      }
      Prog_order = give_progression(progression);
      
      if (Prog_order == -1) {
	fprintf(stderr,
	  "Unrecognized progression order [LRCP, RLCP, RPCL, PCRL, CPRL] !!\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 's':			/* subsampling factor */
      if (sscanf(optarg, "%d,%d", &subsampling_dx, &subsampling_dy)
	!= 2) {
	fprintf(stderr,
	  "'-s' sub-sampling argument error !  [-s dx,dy]\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 'd':			/* coordonnate of the reference grid */
      if (sscanf(optarg, "%d,%d", &Dim[0], &Dim[1]) != 2) {
	fprintf(stderr,
	  "-d 'coordonnate of the reference grid' argument error !! [-d x0,y0]\n");
	return 1;
      }
      break;
      /* ----------------------------------------------------- */
    case 'h':			/* Display an help description */
      help_display();
      return 0;
      break;
      /* ----------------------------------------------------- */
    case 'P':			/* POC */
      fprintf(stderr, "/----------------------------------\\\n");
      fprintf(stderr, "|  POC option not fully tested !!  |\n");
      fprintf(stderr, "\\----------------------------------/\n");
      
      s = optarg;
      while (sscanf(s, "T%d=%d,%d,%d,%d,%d,%s", &POC[numpocs].tile,
	&POC[numpocs].resno0, &POC[numpocs].compno0,
	&POC[numpocs].layno1, &POC[numpocs].resno1,
	&POC[numpocs].compno1, POC[numpocs].progorder) == 7) {
	POC[numpocs].prg = give_progression(POC[numpocs].progorder);
	/* POC[numpocs].tile; */
	numpocs++;
	while (*s && *s != '/') {
	  s++;
	}
	if (!*s)
	  break;
	s++;
      }
      break;
      /* ------------------------------------------------------ */
    case 'S':			/* SOP marker */
      CSty |= 0x02;
      break;
      /* ------------------------------------------------------ */
    case 'E':			/* EPH marker */
      CSty |= 0x04;
      break;
      /* ------------------------------------------------------ */
    case 'M':			/* Mode switch pas tous au point !! */
      if (sscanf(optarg, "%d", &value) == 1) {
	for (i = 0; i <= 5; i++) {
	  int cache = value & (1 << i);
	  if (cache)
	    mode |= (1 << i);
	}
      }
      break;
      /* ------------------------------------------------------ */
    case 'R':			/* ROI */
      if (sscanf(optarg, "OI:c=%d,U=%d", &ROI_compno, &ROI_shift) != 2) {
	fprintf(stderr, "ROI error !! [-ROI:c='compno',U='shift']\n");
	return 1;
      }
      break;
      /* ------------------------------------------------------ */
    case 'T':			/* Tile offset */
      if (sscanf(optarg, "%d,%d", &TX0, &TY0) != 2) {
	fprintf(stderr, "-T 'tile offset' argument error !! [-T X0,Y0]");
	return 1;
      }
      break;
      /* ------------------------------------------------------ */
    case 'C':			/* Add a comment */
      cp.comment = optarg;
      break;
      /* ------------------------------------------------------ */
    case 'I':			/* reversible or not */
      ir = 1;
      break;
      /* ------------------------------------------------------ */
    case 'W':			/* Width and Height and Cb and Cr subsampling in case of YUV format files */
      if (sscanf
	(optarg, "%d,%d,%d,%d", &w, &h, &CbCr_subsampling_dx,
	&CbCr_subsampling_dy) != 4) {
	fprintf(stderr, "-W argument error");
	return 1;
      }
      break;
      /* ------------------------------------------------------ */
    case 'F':			/* Video frame rate */
      if (sscanf(optarg, "%d", &frame_rate) != 1) {
	fprintf(stderr, "-F argument error");
	return 1;
      }
      break;
      /* ------------------------------------------------------ */
    default:
      return 1;
    }
  }
  
  cp.tx0 = TX0;
  cp.ty0 = TY0;
  
  /* Error messages */
  /* -------------- */
  if (!infile || !outfile) {
    fprintf(stderr,
      "Correct usage: mj2_encoder -i yuv-file -o mj2-file (+ options)\n");
    return 1;
  }
  
  if ((cp.disto_alloc || cp.fixed_alloc || cp.fixed_quality)
    && (!(cp.disto_alloc ^ cp.fixed_alloc ^ cp.fixed_quality))) {
    fprintf(stderr,
      "Error: options -r -q and -f can not be used together !!\n");
    return 1;
  }				// mod fixed_quality
  
  /* if no rate entered, lossless by default */
  if (tcp_init->numlayers == 0) {
    tcp_init->rates[tcp_init->numlayers] = 0;   //MOD antonin : losslessbug
    tcp_init->numlayers++;
    cp.disto_alloc = 1;
  }
  
  if (TX0 > Dim[0] || TY0 > Dim[1]) {
    fprintf(stderr,
      "Error: Tile offset dimension is unnappropriate --> TX0(%d)<=IMG_X0(%d) TYO(%d)<=IMG_Y0(%d) \n",
      TX0, Dim[0], TY0, Dim[1]);
    return 1;
  }
  
  for (i = 0; i < numpocs; i++) {
    if (POC[i].prg == -1) {
      fprintf(stderr,
	"Unrecognized progression order in option -P (POC n %d) [LRCP, RLCP, RPCL, PCRL, CPRL] !!\n",
	i + 1);
    }
  }
  
  /* to respect profile - 0 */
  /* ---------------------- */
  numD_min = 0;
  
  x1 = !Dim[0] ? (w - 1) * subsampling_dx + 1 : Dim[0] + (w -
    1) *
    subsampling_dx + 1;
  y1 = !Dim[1] ? (h - 1) * subsampling_dy + 1 : Dim[1] + (h -
    1) *
    subsampling_dy + 1;
  
  if (Tile_arg == 1) {
    cp.tw = int_ceildiv(x1 - cp.tx0, cp.tdx);
    cp.th = int_ceildiv(y1 - cp.ty0, cp.tdy);
  } else {
    cp.tdx = x1 - cp.tx0;
    cp.tdy = y1 - cp.ty0;
  }
  
  
  /* Initialization for PPM marker */
  cp.ppm = 0;
  cp.ppm_data = NULL;
  cp.ppm_previous = 0;
  cp.ppm_store = 0;
  
  numcomps = 3;			/* Because YUV files only have 3 components */
  
  tcp_init->mct = 0;		/* No component transform needed */
  
  prec = 8;			/* Because in YUV files, components have 8-bit depth */
  
  /* Init the mutiple tiles */
  /* ---------------------- */
  cp.tcps = (j2k_tcp_t *) malloc(cp.tw * cp.th * sizeof(j2k_tcp_t));
  
  for (tileno = 0; tileno < cp.tw * cp.th; tileno++) {
    tcp = &cp.tcps[tileno];
    tcp->numlayers = tcp_init->numlayers;
    for (j = 0; j < tcp->numlayers; j++) {
      if (cp.fixed_quality)	// add fixed_quality
	tcp->distoratio[j] = tcp_init->distoratio[j];
      else
	tcp->rates[j] = tcp_init->rates[j];
    }
    tcp->csty = CSty;
    tcp->prg = Prog_order;
    tcp->mct = tcp_init->mct;
    tcp->ppt = 0;
    tcp->ppt_data = NULL;
    tcp->ppt_store = 0;
    
    numpocs_tile = 0;
    tcp->POC = 0;
    if (numpocs) {
      /* intialisation of POC */
      tcp->POC = 1;
      for (i = 0; i < numpocs; i++) {
	if (tileno == POC[i].tile - 1 || POC[i].tile == -1) {
	  tcp_poc = &tcp->pocs[numpocs_tile];
	  tcp_poc->resno0 = POC[numpocs_tile].resno0;
	  tcp_poc->compno0 = POC[numpocs_tile].compno0;
	  tcp_poc->layno1 = POC[numpocs_tile].layno1;
	  tcp_poc->resno1 = POC[numpocs_tile].resno1;
	  tcp_poc->compno1 = POC[numpocs_tile].compno1;
	  tcp_poc->prg = POC[numpocs_tile].prg;
	  tcp_poc->tile = POC[numpocs_tile].tile;
	  numpocs_tile++;
	}
      }
    }
    tcp->numpocs = numpocs_tile;
    tcp->tccps = (j2k_tccp_t *) malloc(numcomps * sizeof(j2k_tccp_t));
    
    for (i = 0; i < numcomps; i++) {
      tccp = &tcp->tccps[i];
      tccp->csty = CSty & 0x01;	/* 0 => one precinct || 1 => custom precinct  */
      tccp->numresolutions = NumResolution;
      tccp->cblkw = int_floorlog2(cblockw_init);
      tccp->cblkh = int_floorlog2(cblockh_init);
      tccp->cblksty = mode;
      tccp->qmfbid = ir ? 0 : 1;
      tccp->qntsty = ir ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT;
      tccp->numgbits = 2;
      if (i == ROI_compno)
	tccp->roishift = ROI_shift;
      else
	tccp->roishift = 0;
      if (CSty & J2K_CCP_CSTY_PRT) {
	int p = 0;
	for (j = tccp->numresolutions - 1; j >= 0; j--) {
	  if (p < res_spec) {
	    if (prcw_init[p] < 1)
	      tccp->prcw[j] = 1;
	    else
	      tccp->prcw[j] = int_floorlog2(prcw_init[p]);
	    
	    if (prch_init[p] < 1)
	      tccp->prch[j] = 1;
	    else
	      tccp->prch[j] = int_floorlog2(prch_init[p]);
	  } else {
	    int size_prcw, size_prch;
	    size_prcw = prcw_init[res_spec - 1] >> (p - (res_spec - 1));
	    size_prch = prch_init[res_spec - 1] >> (p - (res_spec - 1));
	    if (size_prcw < 1)
	      tccp->prcw[j] = 1;
	    else
	      tccp->prcw[j] = int_floorlog2(size_prcw);
	    if (size_prch < 1)
	      tccp->prch[j] = 1;
	    else
	      tccp->prch[j] = int_floorlog2(size_prch);
	  }
	  p++;
	  /*printf("\nsize precinct pour level %d : %d,%d\n", j,
	  tccp->prcw[j], tccp->prch[j]); */
	}
      } else {
	for (j = 0; j < tccp->numresolutions; j++) {
	  tccp->prcw[j] = 15;
	  tccp->prch[j] = 15;
	}
      }
      calc_explicit_stepsizes(tccp, prec);
    }
Exemplo n.º 7
0
int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi) {
	int bandno, cblkno;
	unsigned char *c = src;

	opj_cp_t *cp = t2->cp;

	int compno = pi->compno;	/* component value */
	int resno  = pi->resno;		/* resolution level value */
	int precno = pi->precno;	/* precinct value */
	int layno  = pi->layno;		/* quality layer value */

	opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
	opj_tcd_resolution_t *res = &tilec->resolutions[resno];
	
	unsigned char *hd = NULL;
	int present;
	
	opj_bio_t *bio = NULL;	/* BIO component */
	
	if (layno == 0) {
		for (bandno = 0; bandno < res->numbands; bandno++) {
			opj_tcd_band_t *band = &res->bands[bandno];
			opj_tcd_precinct_t *prc = &band->precincts[precno];
			
			if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)||(band->z1-band->z0 == 0)) continue;

			tgt_reset(prc->incltree);
			tgt_reset(prc->imsbtree);
			for (cblkno = 0; cblkno < prc->cblkno[0] * prc->cblkno[1] * prc->cblkno[2]; cblkno++) {
				opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
				cblk->numsegs = 0;
			}
		}
	}
	
	/* SOP markers */
	
	if (tcp->csty & J3D_CP_CSTY_SOP) {
		if ((*c) != 0xff || (*(c + 1) != 0x91)) {
			opj_event_msg(t2->cinfo, EVT_WARNING, "Expected SOP marker\n");
		} else {
			c += 6;
		}
		
		/** TODO : check the Nsop value */
	}
	
	/* 
	When the marker PPT/PPM is used the packet header are store in PPT/PPM marker
	This part deal with this caracteristic
	step 1: Read packet header in the saved structure
	step 2: Return to codestream for decoding 
	*/

	bio = bio_create();
	
	if (cp->ppm == 1) {		/* PPM */
		hd = cp->ppm_data;
		bio_init_dec(bio, hd, cp->ppm_len);
	} else if (tcp->ppt == 1) {	/* PPT */
		hd = tcp->ppt_data;
		bio_init_dec(bio, hd, tcp->ppt_len);
	} else {			/* Normal Case */
		hd = c;
		bio_init_dec(bio, hd, src+len-hd);
	}
	
	present = bio_read(bio, 1);
	
	if (!present) {
		bio_inalign(bio);
		hd += bio_numbytes(bio);
		bio_destroy(bio);
		
		/* EPH markers */
		
		if (tcp->csty & J3D_CP_CSTY_EPH) {
			if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
				printf("Error : expected EPH marker\n");
			} else {
				hd += 2;
			}
		}
		
		if (cp->ppm == 1) {		/* PPM case */
			cp->ppm_len += cp->ppm_data-hd;
			cp->ppm_data = hd;
			return (c - src);
		}
		if (tcp->ppt == 1) {	/* PPT case */
			tcp->ppt_len+=tcp->ppt_data-hd;
			tcp->ppt_data = hd;
			return (c - src);
		}
		
		return (hd - src);
	}
	
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		
		if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)||(band->z1-band->z0 == 0)) continue;
		
		for (cblkno = 0; cblkno < prc->cblkno[0] * prc->cblkno[1] * prc->cblkno[2]; cblkno++) {
			int included, increment, n;
			opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
			opj_tcd_seg_t *seg = NULL;
			/* if cblk not yet included before --> inclusion tagtree */
			if (!cblk->numsegs) {
                included = tgt_decode(bio, prc->incltree, cblkno, layno + 1);
				/* else one bit */
			} else {
				included = bio_read(bio, 1);
			}
			/* if cblk not included */
			if (!included) {
				cblk->numnewpasses = 0;
				continue;
			}
			/* if cblk not yet included --> zero-bitplane tagtree */
			if (!cblk->numsegs) {
				int i, numimsbs;
				for (i = 0; !tgt_decode(bio, prc->imsbtree, cblkno, i); i++);
				numimsbs = i - 1;
				cblk->numbps = band->numbps - numimsbs;
				cblk->numlenbits = 3;
			}
			/* number of coding passes */
			cblk->numnewpasses = t2_getnumpasses(bio);
			increment = t2_getcommacode(bio);
			/* length indicator increment */
			cblk->numlenbits += increment;
			if (!cblk->numsegs) {
				seg = &cblk->segs[0];
				t2_init_seg(seg, tcp->tccps[compno].cblksty, 1);
			} else {
				seg = &cblk->segs[cblk->numsegs - 1];
				if (seg->numpasses == seg->maxpasses) {
					t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);
				}
			}
			n = cblk->numnewpasses;
			
			do {
				seg->numnewpasses = int_min(seg->maxpasses - seg->numpasses, n);
				seg->newlen = bio_read(bio, cblk->numlenbits + int_floorlog2(seg->numnewpasses));
				n -= seg->numnewpasses;
				if (n > 0) {
					t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);
				}
			} while (n > 0);
		}
	}
	
	if (bio_inalign(bio)) {
		bio_destroy(bio);
		return -999;
	}
	
	hd += bio_numbytes(bio);
	bio_destroy(bio);
	
	/* EPH markers */
	if (tcp->csty & J3D_CP_CSTY_EPH) {
		if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
			opj_event_msg(t2->cinfo, EVT_ERROR, "Expected EPH marker\n");
			return -999;
		} else {
			hd += 2;
		}
	}
	
	if (cp->ppm==1) {
		cp->ppm_len+=cp->ppm_data-hd;
		cp->ppm_data = hd;
	} else if (tcp->ppt == 1) {
		tcp->ppt_len+=tcp->ppt_data-hd;
		tcp->ppt_data = hd;
	} else {
		c=hd;
	}
	
	for (bandno = 0; bandno < res->numbands; bandno++) {
		opj_tcd_band_t *band = &res->bands[bandno];
		opj_tcd_precinct_t *prc = &band->precincts[precno];
		
		if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)||(band->z1-band->z0 == 0)) continue;		

		for (cblkno = 0; cblkno < prc->cblkno[0] * prc->cblkno[1] * prc->cblkno[2]; cblkno++) {
			opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
			opj_tcd_seg_t *seg = NULL;
			if (!cblk->numnewpasses)
				continue;
			if (!cblk->numsegs) {
				seg = &cblk->segs[0];
				cblk->numsegs++;
				cblk->len = 0;
			} else {
				seg = &cblk->segs[cblk->numsegs - 1];
				if (seg->numpasses == seg->maxpasses) {
					seg++;
					cblk->numsegs++;
				}
			}
			
			do {
				if (c + seg->newlen > src + len) {
					return -999;
				}
				
				memcpy(cblk->data + cblk->len, c, seg->newlen);
				if (seg->numpasses == 0) {
					seg->data = cblk->data + cblk->len;
				}
				c += seg->newlen;
				cblk->len += seg->newlen;
				seg->len += seg->newlen;
				seg->numpasses += seg->numnewpasses;
				cblk->numnewpasses -= seg->numnewpasses;
				if (cblk->numnewpasses > 0) {
					seg++;
					cblk->numsegs++;
				}
			} while (cblk->numnewpasses > 0);
		}
	}
	
	return (c - src);
}
Exemplo n.º 8
0
void j2kTierOne::tierOneEncodeCodeBlock(j2kTileCoder_CodeBlock *codeBlock,j2kTileCoder_Tile *tile,int orient,int compno,int level,int isDWT,double stepSize,int codeBlockStyle,int numComps)
{
    int cbWidth=codeBlock->x1-codeBlock->x0;
    int cbHeight=codeBlock->y1-codeBlock->y0;

    int max=0;

    for(int i=0; i<cbHeight; i++)
    {
        for(int j=0; j<cbWidth; j++)
        {
            max=int_max(max,int_abs(tierOneData[i][j]));
        }
    }

    if(max)
        codeBlock->numbps=int_floorlog2(max)+1-T1_NMSEDEC_FRACBITS;
    else
        codeBlock->numbps=0;

    for(int i=0; i<sizeof(tierOneFlags)/sizeof(int); i++)
    {
        ((int*)tierOneFlags)[i]=0;
    }

    int bpsno=codeBlock->numbps-1;
    int passType=2;

    mqcResetStates();
    mqcSetState(T1_CTXNO_UNI,0,46);
    mqcSetState(T1_CTXNO_AGG,0,3);
    mqcSetState(T1_CTXNO_ZC,0,4);
    mqcInitEncode(codeBlock->data);

    int type;
    int nmSeDec;
    double curWmSeDec=0;//?
    int passno;

    for(passno=0; bpsno>=0; passno++)
    {
        //printf ("cb2==%d==%d\n",passno,ttemp->x0);
        j2kTileCoder_Pass *pass=&codeBlock->passes[passno];
        int correction=3;
        type=((bpsno<(codeBlock->numbps-4))&&(passType<2)&&(codeBlockStyle&J2K_CCP_CBLKSTY_LAZY))?T1_TYPE_RAW:T1_TYPE_MQ;

        switch(passType)
        {
        case 0:
            tierOneSignPass(cbWidth,cbHeight,bpsno,orient,&nmSeDec,type,codeBlockStyle);
            break;
        case 1:
            tierOneRefPass(cbWidth,cbHeight,bpsno,&nmSeDec,type,codeBlockStyle);//此项有问题
            break;
        case 2:
            tierOneCleanPass(cbWidth,cbHeight,bpsno,orient,&nmSeDec,codeBlockStyle);

            if(codeBlockStyle&J2K_CCP_CBLKSTY_SEGSYM)
                mqcSegMarkEncode();/* 模式变化 SEGMARK*/

            break;
        }

        curWmSeDec+=getWmSeDec(nmSeDec,compno,level,orient,bpsno,isDWT,stepSize,numComps);//mod fixed_quality
        tile->distotile+=getWmSeDec(nmSeDec,compno,level,orient,bpsno,isDWT,stepSize,numComps);//add antonin quality

        //以下开始模式变换
        if((codeBlockStyle&J2K_CCP_CBLKSTY_TERMALL)&&
                !((passType==2)&&
                  (bpsno-1<0)))
        {
            mqcFlush();
            correction=1;
            pass->term=1;
        } else {
            if(((bpsno<(codeBlock->numbps-4)&&(passType>0))||((bpsno==(codeBlock->numbps-4))&&(passType==2)))&&
                    (codeBlockStyle&J2K_CCP_CBLKSTY_LAZY))
            {
                mqcFlush();
                correction=1;
                pass->term=1;
            } else {
                pass->term=0;
            }
        }

        if(++passType==3)
        {
            passType=0;
            bpsno--;
        }

        if(pass->term&&bpsno>0)
        {
            type=((bpsno<(codeBlock->numbps-4))&&(passType<2)&&(codeBlockStyle&J2K_CCP_CBLKSTY_LAZY))?T1_TYPE_RAW:T1_TYPE_MQ;
            if(type==T1_TYPE_RAW)
                mqcByPassInitEncode();//BYPASS模式初始化
            else
                mqcRestartInitEncode();
        }

        pass->distortiondec=curWmSeDec;
        pass->rate=mqcNumBytes()+correction;
        if(passno==0)
        {
            pass->len=pass->rate;
        } else {
            pass->len=pass->rate-codeBlock->passes[passno-1].rate;
        }

        //模式变换 RESET
        if(codeBlockStyle&J2K_CCP_CBLKSTY_RESET)
            mqcResetEncode();
    }

    //模式变换ERTERM
    if(codeBlockStyle&J2K_CCP_CBLKSTY_PTERM)
        mqcErtermEncode();
    else if(!(codeBlockStyle&J2K_CCP_CBLKSTY_LAZY))//默认模式
        mqcFlush();

    codeBlock->totalpasses=passno;

}
Exemplo n.º 9
0
Arquivo: t2.c Projeto: kerido/koapch
int t2_encode_packet(tcd_tile_t *tile, j2k_tcp_t *tcp, int compno, int resno, int precno, int layno, unsigned char *dest, int len) {
    int bandno, cblkno;
    tcd_tilecomp_t *tilec=&tile->comps[compno];
    tcd_resolution_t *res=&tilec->resolutions[resno];
    unsigned char *c=dest;
    if (!layno) {
        for (bandno=0; bandno<res->numbands; bandno++) {
            tcd_band_t *band=&res->bands[bandno];
            tcd_precinct_t *prc=&band->precincts[precno];
            tgt_reset(prc->incltree);
            tgt_reset(prc->imsbtree);
            for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
                tcd_cblk_t *cblk=&prc->cblks[cblkno];
                cblk->numpasses=0;
                tgt_setvalue(prc->imsbtree, cblkno, band->numbps-cblk->numbps);
            }
        }
    }
    bio_init_enc(c, len);
    bio_write(1, 1);
    for (bandno=0; bandno<res->numbands; bandno++) {
        tcd_band_t *band=&res->bands[bandno];
        tcd_precinct_t *prc=&band->precincts[precno];
        for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
            tcd_cblk_t *cblk=&prc->cblks[cblkno];
            tcd_layer_t *layer=&cblk->layers[layno];
            if (!cblk->numpasses && layer->numpasses) {
                tgt_setvalue(prc->incltree, cblkno, layno);
            }
        }
        for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
            tcd_cblk_t *cblk=&prc->cblks[cblkno];
            tcd_layer_t *layer=&cblk->layers[layno];
            int increment;
            if (!cblk->numpasses) {
                tgt_encode(prc->incltree, cblkno, layno+1);
            } else {
                bio_write(layer->numpasses!=0, 1);
            }
            if (!layer->numpasses) {
                continue;
            }
            if (!cblk->numpasses) {
                cblk->numlenbits=3;
                tgt_encode(prc->imsbtree, cblkno, 999);
            }
            t2_putnumpasses(layer->numpasses);
            increment=int_max(0, int_floorlog2(layer->len)+1-(cblk->numlenbits+int_floorlog2(layer->numpasses)));
            t2_putcommacode(increment);
            cblk->numlenbits+=increment;
            bio_write(layer->len, cblk->numlenbits+int_floorlog2(layer->numpasses));
        }
    }
    bio_flush();
    c+=bio_numbytes();
    for (bandno=0; bandno<res->numbands; bandno++) {
        tcd_band_t *band=&res->bands[bandno];
        tcd_precinct_t *prc=&band->precincts[precno];
        for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
            tcd_cblk_t *cblk=&prc->cblks[cblkno];
            tcd_layer_t *layer=&cblk->layers[layno];
            if (!layer->numpasses) continue;
            if (c+layer->len>dest+len) {
                longjmp(j2k_error, 1);
            }
            memcpy(c, layer->data, layer->len);
            cblk->numpasses+=layer->numpasses;
            c+=layer->len;
        }
    }
    return c-dest;
}
Exemplo n.º 10
0
Arquivo: t2.c Projeto: kerido/koapch
int t2_decode_packet(unsigned char *src, int len, tcd_tile_t *tile, j2k_tcp_t *tcp, int compno, int resno, int precno, int layno) {
    int bandno, cblkno;
    tcd_tilecomp_t *tilec=&tile->comps[compno];
    tcd_resolution_t *res=&tilec->resolutions[resno];
    unsigned char *c=src;
    int present;
    if (layno==0) {
        for (bandno=0; bandno<res->numbands; bandno++) {
            tcd_band_t *band=&res->bands[bandno];
            tcd_precinct_t *prc=&band->precincts[precno];
            tgt_reset(prc->incltree);
            tgt_reset(prc->imsbtree);
            for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
                tcd_cblk_t *cblk=&prc->cblks[cblkno];
                cblk->numsegs=0;
            }
        }
    }
    if (tcp->csty&J2K_CP_CSTY_SOP) {
        c+=6;
    }
    bio_init_dec(c, src+len-c);
    present=bio_read(1);
    if (!present) {
        bio_inalign();
        c+=bio_numbytes();
        return c-src;
    }
    for (bandno=0; bandno<res->numbands; bandno++) {
        tcd_band_t *band=&res->bands[bandno];
        tcd_precinct_t *prc=&band->precincts[precno];
        for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
            int included, increment, n;
            tcd_cblk_t *cblk=&prc->cblks[cblkno];
            tcd_seg_t *seg;
            if (!cblk->numsegs) {
                included=tgt_decode(prc->incltree, cblkno, layno+1);
            } else {
                included=bio_read(1);
            }
            if (!included) {
                cblk->numnewpasses=0;
                continue;
            }
            if (!cblk->numsegs) {
                int i, numimsbs;
                for (i=0; !tgt_decode(prc->imsbtree, cblkno, i); i++) {}
                numimsbs=i-1;
                cblk->numbps=band->numbps-numimsbs;
                cblk->numlenbits=3;
            }
            cblk->numnewpasses=t2_getnumpasses();
            increment=t2_getcommacode();
            cblk->numlenbits+=increment;
            if (!cblk->numsegs) {
                seg=&cblk->segs[0];
                t2_init_seg(seg, tcp->tccps[compno].cblksty);
            } else {
                seg=&cblk->segs[cblk->numsegs-1];
                if (seg->numpasses==seg->maxpasses) {
                    t2_init_seg(++seg, tcp->tccps[compno].cblksty);
                }
            }
            n=cblk->numnewpasses;
            do {
                seg->numnewpasses=int_min(seg->maxpasses-seg->numpasses, n);
                seg->newlen=bio_read(cblk->numlenbits+int_floorlog2(seg->numnewpasses));
                n-=seg->numnewpasses;
                if (n>0) {
                    t2_init_seg(++seg, tcp->tccps[compno].cblksty);
                }
            } while (n>0);
       }
    }


    bio_inalign();
    c+=bio_numbytes();
    if (tcp->csty&J2K_CP_CSTY_EPH) {
        c+=2;
    }
    for (bandno=0; bandno<res->numbands; bandno++) {
        tcd_band_t *band=&res->bands[bandno];
        tcd_precinct_t *prc=&band->precincts[precno];
        for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
            tcd_cblk_t *cblk=&prc->cblks[cblkno];
            tcd_seg_t *seg;
            if (!cblk->numnewpasses) continue;
            if (!cblk->numsegs) {
                seg=&cblk->segs[cblk->numsegs++];
                cblk->len=0;
            } else {
                seg=&cblk->segs[cblk->numsegs-1];
                if (seg->numpasses==seg->maxpasses) {
                    seg++;
                    cblk->numsegs++;
                }
            }
            do {
                if (c+seg->newlen>src+len) longjmp(j2k_error, 1);
                memcpy(cblk->data+cblk->len, c, seg->newlen);
                if (seg->numpasses==0) {
                    seg->data=cblk->data+cblk->len;
                }
                c+=seg->newlen;
                cblk->len+=seg->newlen;
                seg->len+=seg->newlen;
                seg->numpasses+=seg->numnewpasses;
                cblk->numnewpasses-=seg->numnewpasses;
                if (cblk->numnewpasses>0) {
                    seg++;
                    cblk->numsegs++;
                }
            } while (cblk->numnewpasses>0);
        }
    }

 
	return c-src;
}