X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libopenjpeg%2Ft2.c;h=24ef12c732ccad0f5a8362122f3b91f737f16de4;hb=a545cb7cff7e97f2fd4fa9676d3db87726a4e225;hp=76821afcd5b8a669c80ea027956426d67cc2dd75;hpb=5743cca5f851a6c33462f66c2006ca5fc78f3c12;p=openjpeg.git
diff --git a/libopenjpeg/t2.c b/libopenjpeg/t2.c
index 76821afc..24ef12c7 100644
--- a/libopenjpeg/t2.c
+++ b/libopenjpeg/t2.c
@@ -38,46 +38,103 @@
/*@{*/
static void t2_putcommacode(opj_bio_t *bio, int n);
-static int t2_getcommacode(opj_bio_t *bio);
+
+static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio);
/**
Variable length code for signalling delta Zil (truncation point)
-@param bio Bit Input/Output component
-@param n delta Zil
+@param bio Bit Input/Output component
+@param n delta Zil
*/
-static void t2_putnumpasses(opj_bio_t *bio, int n);
-static int t2_getnumpasses(opj_bio_t *bio);
+static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n);
+static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio);
+
/**
Encode a packet of a tile to a destination buffer
+@param tileno Number of the tile encoded
@param tile Tile for which to write the packets
@param tcp Tile coding parameters
@param pi Packet identity
@param dest Destination buffer
+@param p_data_written FIXME DOC
@param len Length of the destination buffer
-@param cstr_info Codestream information structure
-@param tileno Number of the tile encoded
-@return
-*/
-static int t2_encode_packet(opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi, unsigned char *dest, int len, opj_codestream_info_t *cstr_info, int tileno);
-/**
-@param cblk
-@param index
-@param cblksty
-@param first
+@param cstr_info Codestream information structure
+@return
*/
-static void t2_init_seg(opj_tcd_cblk_dec_t* cblk, int index, int cblksty, int first);
+static opj_bool opj_t2_encode_packet( OPJ_UINT32 tileno,
+ opj_tcd_tile_v2_t *tile,
+ opj_tcp_v2_t *tcp,
+ opj_pi_iterator_t *pi,
+ OPJ_BYTE *dest,
+ OPJ_UINT32 * p_data_written,
+ OPJ_UINT32 len,
+ opj_codestream_info_t *cstr_info);
+
/**
Decode a packet of a tile from a source buffer
@param t2 T2 handle
-@param src Source buffer
-@param len Length of the source buffer
@param tile Tile for which to write the packets
@param tcp Tile coding parameters
@param pi Packet identity
+@param src Source buffer
+@param data_read FIXME DOC
+@param max_length FIXME DOC
@param pack_info Packet information
-@return
+
+@return FIXME DOC
*/
-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);
+static opj_bool opj_t2_decode_packet( opj_t2_v2_t* t2,
+ opj_tcd_tile_v2_t *tile,
+ opj_tcp_v2_t *tcp,
+ opj_pi_iterator_t *pi,
+ OPJ_BYTE *src,
+ OPJ_UINT32 * data_read,
+ OPJ_UINT32 max_length,
+ opj_packet_info_t *pack_info);
+
+static opj_bool opj_t2_skip_packet( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_tcp_v2_t *p_tcp,
+ opj_pi_iterator_t *p_pi,
+ OPJ_BYTE *p_src,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *p_pack_info);
+
+static opj_bool opj_t2_read_packet_header( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_tcp_v2_t *p_tcp,
+ opj_pi_iterator_t *p_pi,
+ opj_bool * p_is_data_present,
+ OPJ_BYTE *p_src_data,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *p_pack_info);
+
+static opj_bool opj_t2_read_packet_data(opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_pi_iterator_t *p_pi,
+ OPJ_BYTE *p_src_data,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *pack_info);
+
+static opj_bool opj_t2_skip_packet_data(opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_pi_iterator_t *p_pi,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *pack_info);
+
+/**
+@param cblk
+@param index
+@param cblksty
+@param first
+*/
+static opj_bool opj_t2_init_seg( opj_tcd_cblk_dec_v2_t* cblk,
+ OPJ_UINT32 index,
+ OPJ_UINT32 cblksty,
+ OPJ_UINT32 first);
/*@}*/
@@ -86,708 +143,1129 @@ static int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_t
/* ----------------------------------------------------------------------- */
/* #define RESTART 0x04 */
-
+// TODO MSD->LHE
static void t2_putcommacode(opj_bio_t *bio, int n) {
- while (--n >= 0) {
- bio_write(bio, 1, 1);
- }
- bio_write(bio, 0, 1);
+ while (--n >= 0) {
+ bio_write(bio, 1, 1);
+ }
+ bio_write(bio, 0, 1);
}
-static int t2_getcommacode(opj_bio_t *bio) {
- int n;
- for (n = 0; bio_read(bio, 1); n++) {
- ;
- }
- return n;
+OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio)
+{
+ OPJ_UINT32 n = 0;
+ while (bio_read(bio, 1)) {
+ ++n;
+ }
+ return n;
}
-static void t2_putnumpasses(opj_bio_t *bio, int n) {
- if (n == 1) {
- bio_write(bio, 0, 1);
- } else if (n == 2) {
- bio_write(bio, 2, 2);
- } else if (n <= 5) {
- bio_write(bio, 0xc | (n - 3), 4);
- } else if (n <= 36) {
- bio_write(bio, 0x1e0 | (n - 6), 9);
- } else if (n <= 164) {
- bio_write(bio, 0xff80 | (n - 37), 16);
- }
+void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n) {
+ if (n == 1) {
+ bio_write(bio, 0, 1);
+ } else if (n == 2) {
+ bio_write(bio, 2, 2);
+ } else if (n <= 5) {
+ bio_write(bio, 0xc | (n - 3), 4);
+ } else if (n <= 36) {
+ bio_write(bio, 0x1e0 | (n - 6), 9);
+ } else if (n <= 164) {
+ bio_write(bio, 0xff80 | (n - 37), 16);
+ }
}
-static int t2_getnumpasses(opj_bio_t *bio) {
- int n;
- if (!bio_read(bio, 1))
- return 1;
- if (!bio_read(bio, 1))
- return 2;
- if ((n = bio_read(bio, 2)) != 3)
- return (3 + n);
- if ((n = bio_read(bio, 5)) != 31)
- return (6 + n);
- return (37 + bio_read(bio, 7));
+OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio) {
+ OPJ_UINT32 n;
+ if (!bio_read(bio, 1))
+ return 1;
+ if (!bio_read(bio, 1))
+ return 2;
+ if ((n = bio_read(bio, 2)) != 3)
+ return (3 + n);
+ if ((n = bio_read(bio, 5)) != 31)
+ return (6 + n);
+ return (37 + bio_read(bio, 7));
}
-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 */
-
- /* */
- 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;
- }
- /* */
-
- 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);
-
- /* */
- if (tcp->csty & J2K_CP_CSTY_EPH) {
- c[0] = 255;
- c[1] = 146;
- c += 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(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);
-}
+/* ----------------------------------------------------------------------- */
-static void t2_init_seg(opj_tcd_cblk_dec_t* cblk, int index, int cblksty, int first) {
- opj_tcd_seg_t* seg;
- cblk->segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, (index + 1) * sizeof(opj_tcd_seg_t));
- seg = &cblk->segs[index];
- seg->data = NULL;
- seg->dataindex = 0;
- seg->numpasses = 0;
- seg->len = 0;
- if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {
- seg->maxpasses = 1;
- }
- else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
- if (first) {
- seg->maxpasses = 10;
- } else {
- seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1;
- }
- } else {
- seg->maxpasses = 109;
- }
+opj_bool opj_t2_encode_packets( opj_t2_v2_t* p_t2,
+ OPJ_UINT32 p_tile_no,
+ opj_tcd_tile_v2_t *p_tile,
+ OPJ_UINT32 p_maxlayers,
+ OPJ_BYTE *p_dest,
+ OPJ_UINT32 * p_data_written,
+ OPJ_UINT32 p_max_len,
+ opj_codestream_info_t *cstr_info,
+ OPJ_UINT32 p_tp_num,
+ OPJ_INT32 p_tp_pos,
+ OPJ_UINT32 p_pino,
+ J2K_T2_MODE p_t2_mode)
+{
+ OPJ_BYTE *l_current_data = p_dest;
+ OPJ_UINT32 l_nb_bytes = 0;
+ OPJ_UINT32 compno;
+ OPJ_UINT32 poc;
+ opj_pi_iterator_t *l_pi = 00;
+ opj_pi_iterator_t *l_current_pi = 00;
+ opj_image_t *l_image = p_t2->image;
+ opj_cp_v2_t *l_cp = p_t2->cp;
+ opj_tcp_v2_t *l_tcp = &l_cp->tcps[p_tile_no];
+ OPJ_UINT32 pocno = l_cp->m_specific_param.m_enc.m_cinema == CINEMA4K_24? 2: 1;
+ OPJ_UINT32 l_max_comp = l_cp->m_specific_param.m_enc.m_max_comp_size > 0 ? l_image->numcomps : 1;
+ OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
+
+ l_pi = pi_initialise_encode_v2(l_image, l_cp, p_tile_no, p_t2_mode);
+ if (!l_pi) {
+ return OPJ_FALSE;
+ }
+
+ * p_data_written = 0;
+
+ if (p_t2_mode == THRESH_CALC ){ /* Calculating threshold */
+ l_current_pi = l_pi;
+
+ for (compno = 0; compno < l_max_comp; ++compno) {
+ OPJ_UINT32 l_comp_len = 0;
+ l_current_pi = l_pi;
+
+ for (poc = 0; poc < pocno ; ++poc) {
+ OPJ_UINT32 l_tp_num = compno;
+
+ // TODO MSD : check why this function cannot fail (cf. v1)
+ pi_create_encode_v2(l_pi, l_cp,p_tile_no,poc,l_tp_num,p_tp_pos,p_t2_mode);
+
+ while (pi_next(l_current_pi)) {
+ if (l_current_pi->layno < p_maxlayers) {
+ l_nb_bytes = 0;
+
+ if (! opj_t2_encode_packet(p_tile_no,p_tile, l_tcp, l_current_pi, l_current_data, &l_nb_bytes, p_max_len, cstr_info)) {
+ pi_destroy_v2(l_pi, l_nb_pocs);
+ return OPJ_FALSE;
+ }
+
+ l_comp_len += l_nb_bytes;
+ l_current_data += l_nb_bytes;
+ p_max_len -= l_nb_bytes;
+
+ * p_data_written += l_nb_bytes;
+ }
+ }
+
+ if (l_cp->m_specific_param.m_enc.m_max_comp_size) {
+ if (l_comp_len > l_cp->m_specific_param.m_enc.m_max_comp_size) {
+ pi_destroy_v2(l_pi, l_nb_pocs);
+ return OPJ_FALSE;
+ }
+ }
+
+ ++l_current_pi;
+ }
+ }
+ }
+ else { /* t2_mode == FINAL_PASS */
+ pi_create_encode_v2(l_pi, l_cp,p_tile_no,p_pino,p_tp_num,p_tp_pos,p_t2_mode);
+
+ l_current_pi = &l_pi[p_pino];
+
+ while (pi_next(l_current_pi)) {
+ if (l_current_pi->layno < p_maxlayers) {
+ l_nb_bytes=0;
+
+ if (! opj_t2_encode_packet(p_tile_no,p_tile, l_tcp, l_current_pi, l_current_data, &l_nb_bytes, p_max_len, cstr_info)) {
+ pi_destroy_v2(l_pi, l_nb_pocs);
+ return OPJ_FALSE;
+ }
+
+ l_current_data += l_nb_bytes;
+ p_max_len -= l_nb_bytes;
+
+ * p_data_written += l_nb_bytes;
+
+ /* INDEX >> */
+ if(cstr_info) {
+ if(cstr_info->index_write) {
+ opj_tile_info_t *info_TL = &cstr_info->tile[p_tile_no];
+ 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 {
+ info_PK->start_pos = ((l_cp->m_specific_param.m_enc.m_tp_on | l_tcp->POC)&& 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 + l_nb_bytes - 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 */
+ ++p_tile->packno;
+ }
+ }
+ }
+
+ pi_destroy_v2(l_pi, l_nb_pocs);
+
+ return OPJ_TRUE;
}
-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;
- }
+opj_bool opj_t2_decode_packets( opj_t2_v2_t *p_t2,
+ OPJ_UINT32 p_tile_no,
+ opj_tcd_tile_v2_t *p_tile,
+ OPJ_BYTE *p_src,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_len,
+ opj_codestream_index_t *p_cstr_index)
+{
+ 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_v2_t *l_cp = p_t2->cp;
+ opj_cp_v2_t *cp = p_t2->cp;
+ opj_tcp_v2_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;
-#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;
- };
+#ifdef TODO_MSD
+ if (p_cstr_index) {
+ l_pack_info = p_cstr_index->tile_index[p_tile_no].packet;
+ }
+#endif
-#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);
+ /* create a packet iterator */
+ l_pi = pi_create_decode_v2(l_image, l_cp, p_tile_no);
+ if (!l_pi) {
+ return OPJ_FALSE;
+ }
+
+ tp_start_packno = 0;
+ l_current_pi = l_pi;
+
+ for (pino = 0; pino <= l_tcp->numpocs; ++pino) {
+
+ /* if the resolution needed is to low, one dim of the tilec could be equal to zero
+ * and no packets are used to encode this resolution and
+ * l_current_pi->resno is always >= p_tile->comps[l_current_pi->compno].minimum_num_resolutions
+ * and no l_img_comp->resno_decoded are computed
+ */
+ opj_bool* first_pass_failed = (opj_bool*)opj_malloc(l_image->numcomps * sizeof(opj_bool));
+ memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(opj_bool));
+
+ 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;
+
+ first_pass_failed[l_current_pi->compno] = OPJ_FALSE;
+
+ if (! opj_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_v2(l_pi,l_nb_pocs);
+ return OPJ_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 (! opj_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_v2(l_pi,l_nb_pocs);
+ return OPJ_FALSE;
+ }
+ }
+
+ if (first_pass_failed[l_current_pi->compno]) {
+ l_img_comp = &(l_image->comps[l_current_pi->compno]);
+ if (l_img_comp->resno_decoded == 0)
+ l_img_comp->resno_decoded = p_tile->comps[l_current_pi->compno].minimum_num_resolutions - 1;
+ }
+
+ l_current_data += l_nb_bytes_read;
+ p_max_len -= l_nb_bytes_read;
+
+ /* INDEX >> */
+#ifdef TODO_MSD
+ if(p_cstr_info) {
+ opj_tile_info_v2_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;
+ }
+#endif
+ /* << INDEX */
+ }
+ ++l_current_pi;
+
+ opj_free(first_pass_failed);
+ }
+ /* INDEX >> */
+#ifdef TODO_MSD
+ 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 */
+ }
+#endif
+ /* << INDEX */
+
+ /* don't forget to release pi */
+ pi_destroy_v2(l_pi,l_nb_pocs);
+ *p_data_read = l_current_data - p_src;
+ return OPJ_TRUE;
}
/* ----------------------------------------------------------------------- */
-int t2_encode_packets(opj_t2_t* t2,int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_codestream_info_t *cstr_info,int tpnum, int tppos,int pino, J2K_T2_MODE t2_mode, int cur_totnum_tp){
- unsigned char *c = dest;
- int e = 0;
- int compno;
- opj_pi_iterator_t *pi = NULL;
- int poc;
- opj_image_t *image = t2->image;
- opj_cp_t *cp = t2->cp;
- opj_tcp_t *tcp = &cp->tcps[tileno];
- int pocno = cp->cinema == CINEMA4K_24? 2: 1;
- int maxcomp = cp->max_comp_size > 0 ? image->numcomps : 1;
-
- pi = pi_initialise_encode(image, cp, tileno, t2_mode);
- if(!pi) {
- /* TODO: throw an error */
- return -999;
- }
-
- if(t2_mode == THRESH_CALC ){ /* Calculating threshold */
- for(compno = 0; compno < maxcomp; compno++ ){
- for(poc = 0; poc < pocno ; poc++){
- int comp_len = 0;
- int tpnum = compno;
- if (pi_create_encode(pi, cp,tileno,poc,tpnum,tppos,t2_mode,cur_totnum_tp)) {
- opj_event_msg(t2->cinfo, EVT_ERROR, "Error initializing Packet Iterator\n");
- pi_destroy(pi, cp, tileno);
- return -999;
- }
- while (pi_next(&pi[poc])) {
- if (pi[poc].layno < maxlayers) {
- e = t2_encode_packet(tile, &cp->tcps[tileno], &pi[poc], c, dest + len - c, cstr_info, tileno);
- comp_len = comp_len + e;
- if (e == -999) {
- break;
- } else {
- c += e;
- }
- }
- }
- if (e == -999) break;
- if (cp->max_comp_size){
- if (comp_len > cp->max_comp_size){
- e = -999;
- break;
- }
- }
- }
- if (e == -999) break;
- }
- }else{ /* t2_mode == FINAL_PASS */
- pi_create_encode(pi, cp,tileno,pino,tpnum,tppos,t2_mode,cur_totnum_tp);
- while (pi_next(&pi[pino])) {
- if (pi[pino].layno < maxlayers) {
- e = t2_encode_packet(tile, &cp->tcps[tileno], &pi[pino], c, dest + len - c, cstr_info, tileno);
- if (e == -999) {
- break;
- } else {
- c += e;
- }
- /* INDEX >> */
- if(cstr_info) {
- if(cstr_info->index_write) {
- 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 {
- info_PK->start_pos = ((cp->tp_on | tcp->POC)&& 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 */
- tile->packno++;
- }
- }
- }
-
- pi_destroy(pi, cp, tileno);
-
- if (e == -999) {
- return e;
- }
-
- return (c - dest);
+/**
+ * Creates a Tier 2 handle
+ *
+ * @param p_image Source or destination image
+ * @param p_cp Image coding parameters.
+ * @return a new T2 handle if successful, NULL otherwise.
+*/
+opj_t2_v2_t* opj_t2_create(opj_image_t *p_image, opj_cp_v2_t *p_cp)
+{
+ /* create the t2 structure */
+ opj_t2_v2_t *l_t2 = (opj_t2_v2_t*)opj_malloc(sizeof(opj_t2_v2_t));
+ if (!l_t2) {
+ return NULL;
+ }
+ memset(l_t2,0,sizeof(opj_t2_v2_t));
+
+ l_t2->image = p_image;
+ l_t2->cp = p_cp;
+
+ return l_t2;
}
-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);
+void opj_t2_destroy(opj_t2_v2_t *t2) {
+ if(t2) {
+ opj_free(t2);
+ }
}
-/* ----------------------------------------------------------------------- */
+opj_bool opj_t2_decode_packet( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_tcp_v2_t *p_tcp,
+ opj_pi_iterator_t *p_pi,
+ OPJ_BYTE *p_src,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *p_pack_info)
+{
+ opj_bool l_read_data;
+ OPJ_UINT32 l_nb_bytes_read = 0;
+ OPJ_UINT32 l_nb_total_bytes_read = 0;
+
+ *p_data_read = 0;
+
+ if (! opj_t2_read_packet_header(p_t2,p_tile,p_tcp,p_pi,&l_read_data,p_src,&l_nb_bytes_read,p_max_length,p_pack_info)) {
+ return OPJ_FALSE;
+ }
+
+ p_src += l_nb_bytes_read;
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ p_max_length -= l_nb_bytes_read;
+
+ /* we should read data for the packet */
+ if (l_read_data) {
+ l_nb_bytes_read = 0;
+
+ if (! opj_t2_read_packet_data(p_t2,p_tile,p_pi,p_src,&l_nb_bytes_read,p_max_length,p_pack_info)) {
+ return OPJ_FALSE;
+ }
+
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ }
-opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp) {
- /* create the tcd structure */
- opj_t2_t *t2 = (opj_t2_t*)opj_malloc(sizeof(opj_t2_t));
- if(!t2) return NULL;
- t2->cinfo = cinfo;
- t2->image = image;
- t2->cp = cp;
+ *p_data_read = l_nb_total_bytes_read;
- return t2;
+ return OPJ_TRUE;
}
-void t2_destroy(opj_t2_t *t2) {
- if(t2) {
- opj_free(t2);
- }
+opj_bool opj_t2_encode_packet( OPJ_UINT32 tileno,
+ opj_tcd_tile_v2_t * tile,
+ opj_tcp_v2_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_v2_t *band = 00;
+ opj_tcd_cblk_enc_v2_t* cblk = 00;
+ opj_tcd_pass_v2_t *pass = 00;
+
+ opj_tcd_tilecomp_v2_t *tilec = &tile->comps[compno];
+ opj_tcd_resolution_v2_t *res = &tilec->resolutions[resno];
+
+ opj_bio_t *bio = 00; /* BIO component */
+
+ /* */
+ 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;
+ }
+ /* */
+
+ if (!layno) {
+ band = res->bands;
+
+ for(bandno = 0; bandno < res->numbands; ++bandno) {
+ opj_tcd_precinct_v2_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_v2_t* cblk = &prc->cblks.enc[cblkno];
+
+ cblk->numpasses = 0;
+ tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->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_v2_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 */
+ opj_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 OPJ_FALSE; /* modified to eliminate longjmp !! */
+ }
+
+ l_nb_bytes = bio_numbytes(bio);
+ c += l_nb_bytes;
+ length -= l_nb_bytes;
+
+ bio_destroy(bio);
+
+ /* */
+ if (tcp->csty & J2K_CP_CSTY_EPH) {
+ c[0] = 255;
+ c[1] = 146;
+ c += 2;
+ length -= 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(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_v2_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 OPJ_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 OPJ_TRUE;
+}
+
+static opj_bool opj_t2_skip_packet( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_tcp_v2_t *p_tcp,
+ opj_pi_iterator_t *p_pi,
+ OPJ_BYTE *p_src,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *p_pack_info)
+{
+ opj_bool l_read_data;
+ OPJ_UINT32 l_nb_bytes_read = 0;
+ OPJ_UINT32 l_nb_total_bytes_read = 0;
+
+ *p_data_read = 0;
+
+ if (! opj_t2_read_packet_header(p_t2,p_tile,p_tcp,p_pi,&l_read_data,p_src,&l_nb_bytes_read,p_max_length,p_pack_info)) {
+ return OPJ_FALSE;
+ }
+
+ p_src += l_nb_bytes_read;
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ p_max_length -= l_nb_bytes_read;
+
+ /* we should read data for the packet */
+ if (l_read_data) {
+ l_nb_bytes_read = 0;
+
+ if (! opj_t2_skip_packet_data(p_t2,p_tile,p_pi,&l_nb_bytes_read,p_max_length,p_pack_info)) {
+ return OPJ_FALSE;
+ }
+
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ }
+ *p_data_read = l_nb_total_bytes_read;
+
+ return OPJ_TRUE;
}
+opj_bool opj_t2_read_packet_header( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_tcp_v2_t *p_tcp,
+ opj_pi_iterator_t *p_pi,
+ opj_bool * p_is_data_present,
+ OPJ_BYTE *p_src_data,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *p_pack_info)
+
+{
+ /* loop */
+ OPJ_UINT32 bandno, cblkno;
+ OPJ_UINT32 l_nb_code_blocks;
+ OPJ_UINT32 l_remaining_length;
+ OPJ_UINT32 l_header_length;
+ OPJ_UINT32 * l_modified_length_ptr = 00;
+ OPJ_BYTE *l_current_data = p_src_data;
+ opj_cp_v2_t *l_cp = p_t2->cp;
+ opj_bio_t *l_bio = 00; /* BIO component */
+ opj_tcd_band_v2_t *l_band = 00;
+ opj_tcd_cblk_dec_v2_t* l_cblk = 00;
+ opj_tcd_resolution_v2_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
+
+ OPJ_BYTE *l_header_data = 00;
+ OPJ_BYTE **l_header_data_start = 00;
+
+ OPJ_UINT32 l_present;
+
+ if (p_pi->layno == 0) {
+ l_band = l_res->bands;
+
+ /* reset tagtrees */
+ for (bandno = 0; bandno < l_res->numbands; ++bandno) {
+ opj_tcd_precinct_v2_t *l_prc = &l_band->precincts[p_pi->precno];
+
+ if ( ! ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) ) {
+ tgt_reset(l_prc->incltree);
+ tgt_reset(l_prc->imsbtree);
+ l_cblk = l_prc->cblks.dec;
+
+ l_nb_code_blocks = l_prc->cw * l_prc->ch;
+ for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
+ l_cblk->numsegs = 0;
+ l_cblk->real_num_segs = 0;
+ ++l_cblk;
+ }
+ }
+
+ ++l_band;
+ }
+ }
+
+ /* SOP markers */
+
+ if (p_tcp->csty & J2K_CP_CSTY_SOP) {
+ if ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) {
+ /* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_WARNING, "Expected SOP marker\n"); */
+ } else {
+ l_current_data += 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
+ */
+
+ l_bio = bio_create();
+ if (! l_bio) {
+ return OPJ_FALSE;
+ }
+
+ if (l_cp->ppm == 1) { /* PPM */
+ l_header_data_start = &l_cp->ppm_data;
+ l_header_data = *l_header_data_start;
+ l_modified_length_ptr = &(l_cp->ppm_len);
+
+ }
+ else if (p_tcp->ppt == 1) { /* PPT */
+ l_header_data_start = &(p_tcp->ppt_data);
+ l_header_data = *l_header_data_start;
+ l_modified_length_ptr = &(p_tcp->ppt_len);
+ }
+ else { /* Normal Case */
+ l_header_data_start = &(l_current_data);
+ l_header_data = *l_header_data_start;
+ l_remaining_length = p_src_data+p_max_length-l_header_data;
+ l_modified_length_ptr = &(l_remaining_length);
+ }
+
+ bio_init_dec(l_bio, l_header_data,*l_modified_length_ptr);
+
+ l_present = bio_read(l_bio, 1);
+ if (!l_present) {
+ bio_inalign(l_bio);
+ l_header_data += bio_numbytes(l_bio);
+ bio_destroy(l_bio);
+
+ /* EPH markers */
+ if (p_tcp->csty & J2K_CP_CSTY_EPH) {
+ if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
+ printf("Error : expected EPH marker\n");
+ } else {
+ l_header_data += 2;
+ }
+ }
+
+ l_header_length = (l_header_data - *l_header_data_start);
+ *l_modified_length_ptr -= l_header_length;
+ *l_header_data_start += l_header_length;
+
+ /* << 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 (p_pack_info) {
+ p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
+ }
+ /* INDEX >> */
+
+ * p_is_data_present = OPJ_FALSE;
+ *p_data_read = l_current_data - p_src_data;
+ return OPJ_TRUE;
+ }
+
+ l_band = l_res->bands;
+ for (bandno = 0; bandno < l_res->numbands; ++bandno) {
+ opj_tcd_precinct_v2_t *l_prc = &(l_band->precincts[p_pi->precno]);
+
+ if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
+ ++l_band;
+ continue;
+ }
+
+ l_nb_code_blocks = l_prc->cw * l_prc->ch;
+ l_cblk = l_prc->cblks.dec;
+ for (cblkno = 0; cblkno < l_nb_code_blocks; cblkno++) {
+ OPJ_UINT32 l_included,l_increment, l_segno;
+ OPJ_INT32 n;
+
+ /* if cblk not yet included before --> inclusion tagtree */
+ if (!l_cblk->numsegs) {
+ l_included = tgt_decode(l_bio, l_prc->incltree, cblkno, p_pi->layno + 1);
+ /* else one bit */
+ }
+ else {
+ l_included = bio_read(l_bio, 1);
+ }
+
+ /* if cblk not included */
+ if (!l_included) {
+ l_cblk->numnewpasses = 0;
+ ++l_cblk;
+ continue;
+ }
+
+ /* if cblk not yet included --> zero-bitplane tagtree */
+ if (!l_cblk->numsegs) {
+ OPJ_UINT32 i = 0;
+
+ while (!tgt_decode(l_bio, l_prc->imsbtree, cblkno, i)) {
+ ++i;
+ }
+
+ l_cblk->numbps = l_band->numbps + 1 - i;
+ l_cblk->numlenbits = 3;
+ }
+
+ /* number of coding passes */
+ l_cblk->numnewpasses = opj_t2_getnumpasses(l_bio);
+ l_increment = opj_t2_getcommacode(l_bio);
+
+ /* length indicator increment */
+ l_cblk->numlenbits += l_increment;
+ l_segno = 0;
+
+ if (!l_cblk->numsegs) {
+ if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 1)) {
+ bio_destroy(l_bio);
+ return OPJ_FALSE;
+ }
+ }
+ else {
+ l_segno = l_cblk->numsegs - 1;
+ if (l_cblk->segs[l_segno].numpasses == l_cblk->segs[l_segno].maxpasses) {
+ ++l_segno;
+ if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
+ bio_destroy(l_bio);
+ return OPJ_FALSE;
+ }
+ }
+ }
+ n = l_cblk->numnewpasses;
+
+ do {
+ l_cblk->segs[l_segno].numnewpasses = int_min(l_cblk->segs[l_segno].maxpasses - l_cblk->segs[l_segno].numpasses, n);
+ l_cblk->segs[l_segno].newlen = bio_read(l_bio, l_cblk->numlenbits + uint_floorlog2(l_cblk->segs[l_segno].numnewpasses));
+
+ n -= l_cblk->segs[l_segno].numnewpasses;
+ if (n > 0) {
+ ++l_segno;
+
+ if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
+ bio_destroy(l_bio);
+ return OPJ_FALSE;
+ }
+ }
+ } while (n > 0);
+
+ ++l_cblk;
+ }
+
+ ++l_band;
+ }
+
+ if (bio_inalign(l_bio)) {
+ bio_destroy(l_bio);
+ return OPJ_FALSE;
+ }
+
+ l_header_data += bio_numbytes(l_bio);
+ bio_destroy(l_bio);
+
+ /* EPH markers */
+ if (p_tcp->csty & J2K_CP_CSTY_EPH) {
+ if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
+ /* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_ERROR, "Expected EPH marker\n"); */
+ } else {
+ l_header_data += 2;
+ }
+ }
+ l_header_length = (l_header_data - *l_header_data_start);
+ *l_modified_length_ptr -= l_header_length;
+ *l_header_data_start += l_header_length;
+ /* << 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 (p_pack_info) {
+ p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
+ }
+ /* INDEX >> */
+
+ *p_is_data_present = OPJ_TRUE;
+ *p_data_read = l_current_data - p_src_data;
+
+ return OPJ_TRUE;
+}
+
+opj_bool opj_t2_read_packet_data( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_pi_iterator_t *p_pi,
+ OPJ_BYTE *p_src_data,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *pack_info)
+{
+ OPJ_UINT32 bandno, cblkno;
+ OPJ_UINT32 l_nb_code_blocks;
+ OPJ_BYTE *l_current_data = p_src_data;
+ opj_tcd_band_v2_t *l_band = 00;
+ opj_tcd_cblk_dec_v2_t* l_cblk = 00;
+ opj_tcd_resolution_v2_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
+
+ l_band = l_res->bands;
+ for (bandno = 0; bandno < l_res->numbands; ++bandno) {
+ opj_tcd_precinct_v2_t *l_prc = &l_band->precincts[p_pi->precno];
+
+ if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
+ ++l_band;
+ continue;
+ }
+
+ l_nb_code_blocks = l_prc->cw * l_prc->ch;
+ l_cblk = l_prc->cblks.dec;
+
+ for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
+ opj_tcd_seg_t *l_seg = 00;
+
+ if (!l_cblk->numnewpasses) {
+ /* nothing to do */
+ ++l_cblk;
+ continue;
+ }
+
+ if (!l_cblk->numsegs) {
+ l_seg = l_cblk->segs;
+ ++l_cblk->numsegs;
+ l_cblk->len = 0;
+ }
+ else {
+ l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
+
+ if (l_seg->numpasses == l_seg->maxpasses) {
+ ++l_seg;
+ ++l_cblk->numsegs;
+ }
+ }
+
+ do {
+ if (l_current_data + l_seg->newlen > p_src_data + p_max_length) {
+ return OPJ_FALSE;
+ }
+
+#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 ((l_cblk->len + l_seg->newlen) > 8192) {
+ opj_event_msg(p_t2->cinfo, EVT_WARNING,
+ "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
+ l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
+ if (!JPWL_ASSUME) {
+ opj_event_msg(p_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
+ return OPJ_FALSE;
+ }
+ l_seg->newlen = 8192 - l_cblk->len;
+ opj_event_msg(p_t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen);
+ break;
+ };
+
+#endif /* USE_JPWL */
+
+ if ((l_cblk->len + l_seg->newlen) > 8192) {
+ return OPJ_FALSE;
+ }
+
+ memcpy(l_cblk->data + l_cblk->len, l_current_data, l_seg->newlen);
+
+ if (l_seg->numpasses == 0) {
+ l_seg->data = &l_cblk->data;
+ l_seg->dataindex = l_cblk->len;
+ }
+
+ l_current_data += l_seg->newlen;
+ l_seg->numpasses += l_seg->numnewpasses;
+ l_cblk->numnewpasses -= l_seg->numnewpasses;
+
+ l_seg->real_num_passes = l_seg->numpasses;
+ l_cblk->len += l_seg->newlen;
+ l_seg->len += l_seg->newlen;
+
+ if (l_cblk->numnewpasses > 0) {
+ ++l_seg;
+ ++l_cblk->numsegs;
+ }
+ } while (l_cblk->numnewpasses > 0);
+
+ l_cblk->real_num_segs = l_cblk->numsegs;
+ ++l_cblk;
+ }
+
+ ++l_band;
+ }
+
+ *(p_data_read) = l_current_data - p_src_data;
+
+ return OPJ_TRUE;
+}
+
+opj_bool opj_t2_skip_packet_data( opj_t2_v2_t* p_t2,
+ opj_tcd_tile_v2_t *p_tile,
+ opj_pi_iterator_t *p_pi,
+ OPJ_UINT32 * p_data_read,
+ OPJ_UINT32 p_max_length,
+ opj_packet_info_t *pack_info)
+{
+ OPJ_UINT32 bandno, cblkno;
+ OPJ_UINT32 l_nb_code_blocks;
+ opj_tcd_band_v2_t *l_band = 00;
+ opj_tcd_cblk_dec_v2_t* l_cblk = 00;
+ opj_tcd_resolution_v2_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
+
+ *p_data_read = 0;
+ l_band = l_res->bands;
+
+ for (bandno = 0; bandno < l_res->numbands; ++bandno) {
+ opj_tcd_precinct_v2_t *l_prc = &l_band->precincts[p_pi->precno];
+
+ if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
+ ++l_band;
+ continue;
+ }
+
+ l_nb_code_blocks = l_prc->cw * l_prc->ch;
+ l_cblk = l_prc->cblks.dec;
+
+ for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
+ opj_tcd_seg_t *l_seg = 00;
+
+ if (!l_cblk->numnewpasses) {
+ /* nothing to do */
+ ++l_cblk;
+ continue;
+ }
+
+ if (!l_cblk->numsegs) {
+ l_seg = l_cblk->segs;
+ ++l_cblk->numsegs;
+ l_cblk->len = 0;
+ }
+ else {
+ l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
+
+ if (l_seg->numpasses == l_seg->maxpasses) {
+ ++l_seg;
+ ++l_cblk->numsegs;
+ }
+ }
+
+ do {
+ if (* p_data_read + l_seg->newlen > p_max_length) {
+ return OPJ_FALSE;
+ }
+
+#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 ((l_cblk->len + l_seg->newlen) > 8192) {
+ opj_event_msg(p_t2->cinfo, EVT_WARNING,
+ "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
+ l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
+ if (!JPWL_ASSUME) {
+ opj_event_msg(p_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
+ return -999;
+ }
+ l_seg->newlen = 8192 - l_cblk->len;
+ opj_event_msg(p_t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen);
+ break;
+ };
+
+#endif /* USE_JPWL */
+ *(p_data_read) += l_seg->newlen;
+
+ l_seg->numpasses += l_seg->numnewpasses;
+ l_cblk->numnewpasses -= l_seg->numnewpasses;
+ if (l_cblk->numnewpasses > 0)
+ {
+ ++l_seg;
+ ++l_cblk->numsegs;
+ }
+ } while (l_cblk->numnewpasses > 0);
+
+ ++l_cblk;
+ }
+
+ ++l_band;
+ }
+
+ return OPJ_TRUE;
+}
+
+
+opj_bool opj_t2_init_seg( opj_tcd_cblk_dec_v2_t* cblk,
+ OPJ_UINT32 index,
+ OPJ_UINT32 cblksty,
+ OPJ_UINT32 first)
+{
+ opj_tcd_seg_t* seg = 00;
+ OPJ_UINT32 l_nb_segs = index + 1;
+
+ if (l_nb_segs > cblk->m_current_max_segs) {
+ opj_tcd_seg_t* new_segs;
+ cblk->m_current_max_segs += J2K_DEFAULT_NB_SEGS;
+
+ new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, cblk->m_current_max_segs * sizeof(opj_tcd_seg_t));
+ if(! new_segs) {
+ opj_free(cblk->segs);
+ cblk->segs = NULL;
+ cblk->m_current_max_segs = 0;
+ /* opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to initialize segment %d\n", l_nb_segs); */
+ return OPJ_FALSE;
+ }
+ cblk->segs = new_segs;
+ }
+
+ seg = &cblk->segs[index];
+ memset(seg,0,sizeof(opj_tcd_seg_t));
+
+ if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {
+ seg->maxpasses = 1;
+ }
+ else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
+ if (first) {
+ seg->maxpasses = 10;
+ } else {
+ seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1;
+ }
+ } else {
+ seg->maxpasses = 109;
+ }
+
+ return OPJ_TRUE;
+}