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Added layer option '-l' to the command line. This option allows user to

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specify a maximum number of quality layers to be decoded.
This commit is contained in:
Antonin Descampe
2005-01-26 09:59:31 +00:00
parent 3b1bee0eec
commit c83ae7397d
2 changed files with 20 additions and 14 deletions
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26
libopenjpeg/t2.c
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@@ -666,23 +666,29 @@ int t2_decode_packets(unsigned char *src, int len, j2k_image_t * img,
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
while (pi_next(&pi[pino])) {
e = t2_decode_packet(c, src + len - c, tile, cp,
&cp->tcps[tileno], pi[pino].compno,
pi[pino].resno, pi[pino].precno,
pi[pino].layno);
if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
e = t2_decode_packet(c, src + len - c, tile, cp,
&cp->tcps[tileno], pi[pino].compno,
pi[pino].resno, pi[pino].precno,
pi[pino].layno);
} else {
e = 0;
}
/* progression in resolution */
img->comps[pi[pino].compno].resno_decoded =
e > 0 ? int_max(pi[pino].resno,
img->comps[pi[pino].compno].
resno_decoded) : img->comps[pi[pino].
compno].resno_decoded;
img->comps[pi[pino].compno].
resno_decoded) : img->comps[pi[pino].
compno].resno_decoded;
n++;
if (e == -999) { /* ADD */
break;
} else
} else {
c += e;
}
}
/* FREE space memory taken by pi */