2 * Copyright (c) 2001-2002, David Janssens
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41 pi_resolution_t *resolutions;
45 short int *include; /* precise if the packet has been already used (usefull for progression order change) */
46 int step_l, step_r, step_c, step_p; /* different steps (layer, resolution, component, precinct) to localize the packet in the include vector */
47 int compno, resno, precno, layno; /* component, resolution, precinct and layer that indentify the packet */
48 int first; /* 0 if the first packet */
52 int tx0, ty0, tx1, ty1;
54 } pi_iterator_t; /* packet iterator */
57 * Create a packet iterator
58 * img: raw image for which the packets will be listed
59 * cp: coding paremeters
60 * tileno: number that identifies the tile for which to list the packets
61 * return value: returns a packet iterator that points to the first packet of the tile
63 pi_iterator_t *pi_create(j2k_image_t * img, j2k_cp_t * cp, int tileno);
66 * Modify the packet iterator to point to the next packet
67 * pi: packet iterator to modify
68 * return value: returns 0 if pi pointed to the last packet or else returns 1
70 int pi_next(pi_iterator_t * pi);