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[1.5] Integrate patch from winfried posted on the mailing list. See here for more info: https://groups.google.com/group/openjpeg/msg/1bbf7ae7ddee3a51

This commit is contained in:
Mathieu Malaterre 2012-04-23 13:31:29 +00:00
parent 097496a9f0
commit baa7e32f9c
1 changed files with 38 additions and 6 deletions
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44
libopenjpeg/j2k.c
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@ -1477,6 +1477,26 @@ static void j2k_read_sod(opj_j2k_t *j2k) {
truncate = 1; /* Case of a truncate codestream */ truncate = 1; /* Case of a truncate codestream */
} }
{
unsigned char *s, *e;
int skipped = 0;
s = cio_getbp(cio);
e = s + len;
if((unsigned int)(e - s) > 8) s = e - 8;
if(e[-2] == 0x00 && e[-1] == 0x00)
{
while(e > s)
{
if(e[-2] == 0xff && e[-1] == 0xd9) break;
--len; --e; ++skipped;
}
if(skipped) truncate = 1;
}
}
data = j2k->tile_data[curtileno]; data = j2k->tile_data[curtileno];
data = (unsigned char*) opj_realloc(data, (j2k->tile_len[curtileno] + len) * sizeof(unsigned char)); data = (unsigned char*) opj_realloc(data, (j2k->tile_len[curtileno] + len) * sizeof(unsigned char));
@ -1856,9 +1876,15 @@ opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *c
#endif /* USE_JPWL */ #endif /* USE_JPWL */
if (id >> 8 != 0xff) { if (id >> 8 != 0xff) {
opj_image_destroy(image); if(cio_numbytesleft(cio) != 0) /* not end of file reached and no EOC */
opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id); {
return 0; opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
opj_image_destroy(image);
return 0;
}
opj_event_msg(cinfo, EVT_WARNING, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
j2k->state = J2K_STATE_NEOC;
break;
} }
e = j2k_dec_mstab_lookup(id); e = j2k_dec_mstab_lookup(id);
/* Check if the marker is known*/ /* Check if the marker is known*/
@ -1949,9 +1975,15 @@ opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestre
id = cio_read(cio, 2); id = cio_read(cio, 2);
if (id >> 8 != 0xff) { if (id >> 8 != 0xff) {
opj_image_destroy(image); if(cio_numbytesleft(cio) != 0) /* no end of file reached and no EOC */
opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id); {
return 0; opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
opj_image_destroy(image);
return 0;
}
opj_event_msg(cinfo, EVT_WARNING, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
j2k->state = J2K_STATE_NEOC;
break;
} }
e = j2k_dec_mstab_lookup(id); e = j2k_dec_mstab_lookup(id);
if (!(j2k->state & e->states)) { if (!(j2k->state & e->states)) {