Reduces memory needed
---
libavcodec/jpeg2000dec.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index a9633fb9d1..d510004114 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -1044,6 +1044,8 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext
*s, Jpeg2000Tile *tile,
nb_code_blocks = prec->nb_codeblocks_height *
prec->nb_codeblocks_width;
for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {
Jpeg2000Cblk *cblk = prec->cblk + cblkno;
+ if (!cblk->nb_terminationsinc && !cblk->lengthinc)
+ continue;
for (cwsno = 0; cwsno < cblk->nb_lengthinc; cwsno ++) {
if (cblk->data_allocated < cblk->length +
cblk->lengthinc[cwsno] + 4) {
size_t new_size = FFMAX(2*cblk->data_allocated,
cblk->length + cblk->lengthinc[cwsno] + 4);
@@ -1073,6 +1075,7 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext
*s, Jpeg2000Tile *tile,
cblk->data_start[cblk->nb_terminations] = cblk->length;
}
}
+ av_freep(&cblk->lengthinc);
}
}
return 0;
--
2.15.1
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