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[trunk] WIP: add output elements about decoding of jp2 files with last tile part lenght equal zero

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This commit is contained in:
Mickael Savinaud
2011-10-11 07:54:27 +00:00
parent c7d3b83164
commit c4642d4fda
3 changed files with 22 additions and 4 deletions
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17
libopenjpeg/j2k.c
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@@ -3350,8 +3350,11 @@ opj_bool j2k_read_sot_v2 (
};
#endif /* USE_JPWL */
/* Ref A.4.2: Psot could be equal zero if it is the last tile-part of the codestream.*/
if (!l_tot_len) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot read data with no size known, giving up\n");
opj_event_msg_v2(p_manager, EVT_ERROR, "Psot value of the current tile-part is equal to zero, "
"for the moment we couldn't manage this case (need to compute the number of byte left"
" in the codestream).\n");
return OPJ_FALSE;
}
@@ -3368,6 +3371,7 @@ opj_bool j2k_read_sot_v2 (
if (l_current_part >= l_tcp->m_nb_tile_parts){
opj_event_msg_v2(p_manager, EVT_ERROR, "In SOT marker, TPSot (%d) is not valid regards to the current "
"number of tile-part (%d), giving up\n", l_current_part, l_tcp->m_nb_tile_parts );
p_j2k->m_specific_param.m_decoder.m_last_tile_part = 1;
return OPJ_FALSE;
}
}
@@ -3381,8 +3385,15 @@ opj_bool j2k_read_sot_v2 (
}
}
/* Keep the size of data to skip after this marker */
p_j2k->m_specific_param.m_decoder.m_sot_length = l_tot_len - 12; /* SOT_marker_size = 12 */
if (!p_j2k->m_specific_param.m_decoder.m_last_tile_part){
/* Keep the size of data to skip after this marker */
p_j2k->m_specific_param.m_decoder.m_sot_length = l_tot_len - 12; /* SOT_marker_size = 12 */
}
else {
/* FIXME: need to be computed from the number of bytes remaining in the codestream */
p_j2k->m_specific_param.m_decoder.m_sot_length = 0;
}
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPH;
/* Check if the current tile is outside the area we want decode (in tile index)*/