Exemplo n.º 1
0
int write_tpixfaix( int coff, int compno, opj_codestream_info_t cstr_info, int j2klen, opj_cio_t *cio)
{
  int len, lenp;
  int i, j;
  int Aux;
  int num_max_tile_parts;
  int size_of_coding; /* 4 or 8 */
  opj_tp_info_t tp;
  int version;

  num_max_tile_parts = get_num_max_tile_parts( cstr_info);

  if( j2klen > pow( 2, 32)){
    size_of_coding =  8;
    version = num_max_tile_parts == 1 ? 1:3;
  }
  else{
    size_of_coding = 4;
    version = num_max_tile_parts == 1 ? 0:2;
  }

  lenp = cio_tell( cio);
  cio_skip( cio, 4);              /* L [at the end]      */
  cio_write( cio, JPIP_FAIX, 4);  /* FAIX                */ 
  cio_write( cio, version, 1);     /* Version 0 = 4 bytes */

  cio_write( cio, num_max_tile_parts, size_of_coding);                      /* NMAX           */
  cio_write( cio, cstr_info.tw*cstr_info.th, size_of_coding);                               /* M              */
  for (i = 0; i < cstr_info.tw*cstr_info.th; i++){
    for (j = 0; j < cstr_info.tile[i].num_tps; j++){
      tp = cstr_info.tile[i].tp[j];
      cio_write( cio, tp.tp_start_pos-coff, size_of_coding); /* start position */
      cio_write( cio, tp.tp_end_pos-tp.tp_start_pos+1, size_of_coding);    /* length         */
      if (version & 0x02){
	if( cstr_info.tile[i].num_tps == 1 && cstr_info.numdecompos[compno] > 1)
	  Aux = cstr_info.numdecompos[compno] + 1;
	else
	  Aux = j + 1;
		  
	cio_write( cio, Aux,4);
	/*cio_write(img.tile[i].tile_parts[j].num_reso_AUX,4);*/ /* Aux_i,j : Auxiliary value */
	/* fprintf(stderr,"AUX value %d\n",Aux);*/
      }
      /*cio_write(0,4);*/
    }
    /* PADDING */
    while (j < num_max_tile_parts){
      cio_write( cio, 0, size_of_coding); /* start position            */
      cio_write( cio, 0, size_of_coding); /* length                    */
      if (version & 0x02)
	cio_write( cio, 0,4);                  /* Aux_i,j : Auxiliary value */
      j++;
    }
  }
  
  len = cio_tell( cio)-lenp;
  cio_seek( cio, lenp);
  cio_write( cio, len, 4);        /* L  */
  cio_seek( cio, lenp+len);

  return len;

}
Exemplo n.º 2
0
int opj_write_tpixfaix( int coff,
                        int compno,
                        opj_codestream_info_t cstr_info,
                        int j2klen,
                        opj_stream_private_t *cio,
                        opj_event_mgr_t * p_manager )
{
    OPJ_UINT32 len;
    OPJ_OFF_T lenp;
    int i, j;
    int Aux;
    int num_max_tile_parts;
    int size_of_coding; /* 4 or 8 */
    opj_tp_info_t tp;
    OPJ_BYTE l_data_header [8];
    int version;

    num_max_tile_parts = get_num_max_tile_parts( cstr_info);

    if( j2klen > pow( 2, 32)) {
        size_of_coding =  8;
        version = num_max_tile_parts == 1 ? 1:3;
    }
    else {
        size_of_coding = 4;
        version = num_max_tile_parts == 1 ? 0:2;
    }

    lenp = opj_stream_tell(cio);
    opj_stream_skip(cio, 4, p_manager);         /* L [at the end]      */
    opj_write_bytes(l_data_header,JPIP_FAIX,4); /* FAIX */
    opj_stream_write_data(cio,l_data_header,4,p_manager);
    opj_write_bytes(l_data_header,version,1);   /* Version 0 = 4 bytes */
    opj_stream_write_data(cio,l_data_header,1,p_manager);

    opj_write_bytes(l_data_header,num_max_tile_parts,size_of_coding);         /* NMAX           */
    opj_stream_write_data(cio,l_data_header,size_of_coding,p_manager);
    opj_write_bytes(l_data_header,cstr_info.tw*cstr_info.th,size_of_coding);  /* M              */
    opj_stream_write_data(cio,l_data_header,size_of_coding,p_manager);

    for (i = 0; i < cstr_info.tw*cstr_info.th; i++)
    {
        for (j = 0; j < cstr_info.tile[i].num_tps; j++)
        {
            tp = cstr_info.tile[i].tp[j];

            opj_write_bytes(l_data_header,tp.tp_start_pos-coff,size_of_coding);            /* start position */
            opj_stream_write_data(cio,l_data_header,size_of_coding,p_manager);
            opj_write_bytes(l_data_header,tp.tp_end_pos-tp.tp_start_pos+1,size_of_coding); /* length         */
            opj_stream_write_data(cio,l_data_header,size_of_coding,p_manager);

            if (version & 0x02)
            {
                if( cstr_info.tile[i].num_tps == 1 && cstr_info.numdecompos[compno] > 1)
                    Aux = cstr_info.numdecompos[compno] + 1;
                else
                    Aux = j + 1;

                opj_write_bytes(l_data_header,Aux,4);
                opj_stream_write_data(cio,l_data_header,4,p_manager);

                /*cio_write(img.tile[i].tile_parts[j].num_reso_AUX,4);*/ /* Aux_i,j : Auxiliary value */
                /* fprintf(stderr,"AUX value %d\n",Aux);*/
            }
            /*cio_write(0,4);*/
        }
        /* PADDING */
        while (j < num_max_tile_parts)
        {

            opj_write_bytes(l_data_header,0,size_of_coding);/* start position            */
            opj_stream_write_data(cio,l_data_header,size_of_coding,p_manager);
            opj_write_bytes(l_data_header,0,size_of_coding);/* length                    */
            opj_stream_write_data(cio,l_data_header,size_of_coding,p_manager);

            if (version & 0x02)
                opj_write_bytes(l_data_header,0,4);      /* Aux_i,j : Auxiliary value */
            opj_stream_write_data(cio,l_data_header,4,p_manager);
            j++;
        }
    }

    len = (OPJ_UINT32)(opj_stream_tell(cio)-lenp);
    opj_stream_seek(cio, lenp,p_manager);
    opj_write_bytes(l_data_header,len,4);/* L  */
    opj_stream_write_data(cio,l_data_header,4,p_manager);
    opj_stream_seek(cio, lenp+len,p_manager);

    return len;
}