int t2_decode_packets(unsigned char *src, int len, j2k_image_t *img, j2k_cp_t *cp, int tileno, tcd_tile_t *tile) {
unsigned char *c=src;
pi_iterator_t *pi;
pi=pi_create(img, cp, tileno);
while (pi_next(pi)) {
//fprintf(stderr, "compno=%d, resno=%d, precno=%d, layno=%d\n", pi->compno, pi->resno, pi->precno, pi->layno);
c+=t2_decode_packet(c, src+len-c, tile, &cp->tcps[tileno], pi->compno, pi->resno, pi->precno, pi->layno);
}
pi_destroy(pi);
return c-src;
}
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile) {
unsigned char *c = src;
opj_pi_iterator_t *pi;
int pino, e = 0;
int n = 0;
opj_image_t *image = t2->image;
opj_cp_t *cp = t2->cp;
/* create a packet iterator */
pi = pi_create(image, cp, tileno);
if(!pi) {
/* TODO: throw an error */
return -999;
}
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
while (pi_next(&pi[pino])) {
if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
e = t2_decode_packet(t2, c, src + len - c, tile, &cp->tcps[tileno], &pi[pino]);
} else {
e = 0;
}
/* progression in resolution */
image->comps[pi[pino].compno].resno_decoded =
(e > 0) ?
int_max(pi[pino].resno, image->comps[pi[pino].compno].resno_decoded)
: image->comps[pi[pino].compno].resno_decoded;
n++;
if (e == -999) { /* ADD */
break;
} else {
c += e;
}
}
}
/* don't forget to release pi */
pi_destroy(pi, cp, tileno);
if (e == -999) {
return e;
}
return (c - src);
}
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile) {
unsigned char *c = src;
opj_pi_iterator_t *pi;
int pino, e = 0;
int n = 0,i;
opj_volume_t *volume = t2->volume;
opj_cp_t *cp = t2->cp;
/* create a packet iterator */
pi = pi_create(volume, cp, tileno);
if(!pi) {
/* TODO: throw an error */
return -999;
}
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
while (pi_next(&pi[pino])) {
if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
e = t2_decode_packet(t2, c, src + len - c, tile, &cp->tcps[tileno], &pi[pino]);
} else {
e = 0;
}
/* progression in resolution */
for (i = 0; i < 3; i++){
volume->comps[pi[pino].compno].resno_decoded[i] = (e > 0) ? int_max(pi[pino].resno, volume->comps[pi[pino].compno].resno_decoded[i]) : volume->comps[pi[pino].compno].resno_decoded[i];
}
n++;
if (e == -999) { /* ADD */
break;
} else {
opj_event_msg(t2->cinfo, EVT_INFO, " t2_decode_packet: %d bytes decoded\n",e);
c += e;
}
}
}
/* don't forget to release pi */
pi_destroy(pi, cp, tileno);
if (e == -999) {
return e;
}
return (c - src);
}
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile, opj_codestream_info_t *cstr_info) {
unsigned char *c = src;
opj_pi_iterator_t *pi;
int pino, e = 0;
int n = 0, curtp = 0;
int tp_start_packno;
opj_image_t *image = t2->image;
opj_cp_t *cp = t2->cp;
/* create a packet iterator */
pi = pi_create_decode(image, cp, tileno);
if(!pi) {
/* TODO: throw an error */
return -999;
}
tp_start_packno = 0;
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
while (pi_next(&pi[pino])) {
if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
opj_packet_info_t *pack_info;
if (cstr_info)
pack_info = &cstr_info->tile[tileno].packet[cstr_info->packno];
else
pack_info = NULL;
e = t2_decode_packet(t2, c, src + len - c, tile, &cp->tcps[tileno], &pi[pino], pack_info);
} else {
e = 0;
}
if(e == -999) return -999;
/* progression in resolution */
image->comps[pi[pino].compno].resno_decoded =
(e > 0) ?
int_max(pi[pino].resno, image->comps[pi[pino].compno].resno_decoded)
: image->comps[pi[pino].compno].resno_decoded;
n++;
/* INDEX >> */
if(cstr_info) {
opj_tile_info_t *info_TL = &cstr_info->tile[tileno];
opj_packet_info_t *info_PK = &info_TL->packet[cstr_info->packno];
if (!cstr_info->packno) {
info_PK->start_pos = info_TL->end_header + 1;
} else if (info_TL->packet[cstr_info->packno-1].end_pos >= (int)cstr_info->tile[tileno].tp[curtp].tp_end_pos){ /* New tile part*/
info_TL->tp[curtp].tp_numpacks = cstr_info->packno - tp_start_packno; /* Number of packets in previous tile-part*/
info_TL->tp[curtp].tp_start_pack = tp_start_packno;
tp_start_packno = cstr_info->packno;
curtp++;
info_PK->start_pos = cstr_info->tile[tileno].tp[curtp].tp_end_header+1;
} else {
info_PK->start_pos = (cp->tp_on && info_PK->start_pos) ? info_PK->start_pos : info_TL->packet[cstr_info->packno - 1].end_pos + 1;
}
info_PK->end_pos = info_PK->start_pos + e - 1;
info_PK->end_ph_pos += info_PK->start_pos - 1; /* End of packet header which now only represents the distance
// to start of packet is incremented by value of start of packet*/
cstr_info->packno++;
}
/* << INDEX */
if (e == -999) { /* ADD */
break;
} else {
c += e;
}
}
}
/* INDEX >> */
if(cstr_info) {
cstr_info->tile[tileno].tp[curtp].tp_numpacks = cstr_info->packno - tp_start_packno; /* Number of packets in last tile-part*/
cstr_info->tile[tileno].tp[curtp].tp_start_pack = tp_start_packno;
}
/* << INDEX */
/* don't forget to release pi */
pi_destroy(pi, cp, tileno);
if (e == -999) {
return e;
}
return (c - src);
}
bool t2_decode_packets(
opj_t2_t *p_t2,
OPJ_UINT32 p_tile_no,
struct opj_tcd_tile *p_tile,
OPJ_BYTE *p_src,
OPJ_UINT32 * p_data_read,
OPJ_UINT32 p_max_len,
struct opj_codestream_info *p_cstr_info)
{
OPJ_BYTE *l_current_data = p_src;
opj_pi_iterator_t *l_pi = 00;
OPJ_UINT32 pino;
opj_image_t *l_image = p_t2->image;
opj_cp_t *l_cp = p_t2->cp;
opj_cp_t *cp = p_t2->cp;
opj_tcp_t *l_tcp = &(p_t2->cp->tcps[p_tile_no]);
OPJ_UINT32 l_nb_bytes_read;
OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
opj_pi_iterator_t *l_current_pi = 00;
OPJ_UINT32 curtp = 0;
OPJ_UINT32 tp_start_packno;
opj_packet_info_t *l_pack_info = 00;
opj_image_comp_t* l_img_comp = 00;
if
(p_cstr_info)
{
l_pack_info = p_cstr_info->tile[p_tile_no].packet;
}
/* create a packet iterator */
l_pi = pi_create_decode(l_image, l_cp, p_tile_no);
if
(!l_pi)
{
return false;
}
tp_start_packno = 0;
l_current_pi = l_pi;
for
(pino = 0; pino <= l_tcp->numpocs; ++pino)
{
while
(pi_next(l_current_pi))
{
if
(l_tcp->num_layers_to_decode > l_current_pi->layno && l_current_pi->resno < p_tile->comps[l_current_pi->compno].minimum_num_resolutions)
{
l_nb_bytes_read = 0;
if
(! t2_decode_packet(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info))
{
pi_destroy(l_pi,l_nb_pocs);
return false;
}
l_img_comp = &(l_image->comps[l_current_pi->compno]);
l_img_comp->resno_decoded = uint_max(l_current_pi->resno, l_img_comp->resno_decoded);
}
else
{
l_nb_bytes_read = 0;
if
(! t2_skip_packet(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info))
{
pi_destroy(l_pi,l_nb_pocs);
return false;
}
}
l_current_data += l_nb_bytes_read;
p_max_len -= l_nb_bytes_read;
/* INDEX >> */
if(p_cstr_info) {
opj_tile_info_t *info_TL = &p_cstr_info->tile[p_tile_no];
opj_packet_info_t *info_PK = &info_TL->packet[p_cstr_info->packno];
if (!p_cstr_info->packno) {
info_PK->start_pos = info_TL->end_header + 1;
} else if (info_TL->packet[p_cstr_info->packno-1].end_pos >= (OPJ_INT32)p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_pos){ // New tile part
info_TL->tp[curtp].tp_numpacks = p_cstr_info->packno - tp_start_packno; // Number of packets in previous tile-part
tp_start_packno = p_cstr_info->packno;
curtp++;
info_PK->start_pos = p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_header+1;
} else {
info_PK->start_pos = (cp->m_specific_param.m_enc.m_tp_on && info_PK->start_pos) ? info_PK->start_pos : info_TL->packet[p_cstr_info->packno - 1].end_pos + 1;
}
info_PK->end_pos = info_PK->start_pos + l_nb_bytes_read - 1;
info_PK->end_ph_pos += info_PK->start_pos - 1; // End of packet header which now only represents the distance
++p_cstr_info->packno;
}
/* << INDEX */
}
++l_current_pi;
}
/* INDEX >> */
if
(p_cstr_info) {
p_cstr_info->tile[p_tile_no].tp[curtp].tp_numpacks = p_cstr_info->packno - tp_start_packno; // Number of packets in last tile-part
}
/* << INDEX */
/* don't forget to release pi */
pi_destroy(l_pi,l_nb_pocs);
*p_data_read = l_current_data - p_src;
return true;
}