Ejemplo n.º 1
0
int write_ppix( int coff, opj_codestream_info_t cstr_info, opj_bool EPHused, int j2klen, opj_cio_t *cio)
{
    int len, lenp, compno, i;
    opj_jp2_box_t *box;

    /*  printf("cstr_info.packno %d\n", cstr_info.packno); //NMAX? */

    lenp = -1;
    box = (opj_jp2_box_t *)opj_calloc( cstr_info.numcomps, sizeof(opj_jp2_box_t));

    for (i=0; i<2; i++) {
        if (i) cio_seek( cio, lenp);

        lenp = cio_tell( cio);
        cio_skip( cio, 4);              /* L [at the end] */
        cio_write( cio, JPIP_PPIX, 4);  /* PPIX           */

        write_manf( i, cstr_info.numcomps, box, cio);

        for (compno=0; compno<cstr_info.numcomps; compno++) {
            box[compno].length = write_ppixfaix( coff, compno, cstr_info, EPHused, j2klen, cio);
            box[compno].type = JPIP_FAIX;
        }

        len = cio_tell( cio)-lenp;
        cio_seek( cio, lenp);
        cio_write( cio, len, 4);        /* L              */
        cio_seek( cio, lenp+len);
    }

    opj_free(box);

    return len;
}
Ejemplo n.º 2
0
size_t write_thix( size_t coff, opj_codestream_info_t cstr_info, opj_cio_t *cio)
{
  size_t len, lenp;
  int i;
  int tileno;
  opj_jp2_box_t *box;

  lenp = 0;
  box = (opj_jp2_box_t *)opj_calloc( cstr_info.tw*cstr_info.th, sizeof(opj_jp2_box_t));

  for ( i = 0; i < 2 ; i++ ){
    if (i)
      cio_seek( cio, lenp);

    lenp = cio_tell( cio);
    cio_skip( cio, 4);              /* L [at the end] */
    cio_write( cio, JPIP_THIX, 4);  /* THIX           */
    write_manf( i, cstr_info.tw*cstr_info.th, box, cio);
    
    for (tileno = 0; tileno < cstr_info.tw*cstr_info.th; tileno++){
      box[tileno].length = write_tilemhix( coff, cstr_info, tileno, cio);
      box[tileno].type = JPIP_MHIX;
    }
 
    len = cio_tell( cio)-lenp;
    cio_seek( cio, lenp);
    cio_write( cio, len, 4);        /* L              */
    cio_seek( cio, lenp+len);
  }

  opj_free(box);

  return len;
}
Ejemplo n.º 3
0
int write_cidx( int offset, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t cstr_info, int j2klen)
{
  int len, i, lenp;
  opj_jp2_box_t *box;
  int num_box = 0;
  opj_bool  EPHused;
  (void)image; /* unused ? */

  lenp = -1;
  box = (opj_jp2_box_t *)opj_calloc( 32, sizeof(opj_jp2_box_t));

  for (i=0;i<2;i++){
  
    if(i)
      cio_seek( cio, lenp);

    lenp = cio_tell( cio);

    cio_skip( cio, 4);              /* L [at the end] */
    cio_write( cio, JPIP_CIDX, 4);  /* CIDX           */
    write_cptr( offset, cstr_info.codestream_size, cio);

    write_manf( i, num_box, box, cio);
    
    num_box = 0;
    box[num_box].length = write_mainmhix( offset, cstr_info, cio);
    box[num_box].type = JPIP_MHIX;
    num_box++;

    box[num_box].length = write_tpix( offset, cstr_info, j2klen, cio);
    box[num_box].type = JPIP_TPIX;
    num_box++;
      
    box[num_box].length = write_thix( offset, cstr_info, cio);
    box[num_box].type = JPIP_THIX;
    num_box++;

    EPHused = check_EPHuse( offset, cstr_info.marker, cstr_info.marknum, cio);
      
    box[num_box].length = write_ppix( offset, cstr_info, EPHused, j2klen, cio);
    box[num_box].type = JPIP_PPIX;
    num_box++;
    
    box[num_box].length = write_phix( offset, cstr_info, EPHused, j2klen, cio);
    box[num_box].type = JPIP_PHIX;
    num_box++;
      
    len = cio_tell( cio)-lenp;
    cio_seek( cio, lenp);
    cio_write( cio, len, 4);        /* L             */
    cio_seek( cio, lenp+len);
  }

  opj_free( box);
  
  return len;
}