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j2k: reorder multiplications to avoid interger overflows related to code blocks 

Fixes CID703776, CID703775
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-10-22 23:56:14 +02:00
parent 7c2d5eec29
commit 45ae9a8fc9
1 changed files with 1 additions and 1 deletions
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libavcodec/j2k.c
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@ -285,7 +285,7 @@ int ff_j2k_init_component(J2kComponent *comp, J2kCodingStyle *codsty, J2kQuantSt
band->cblknx = ff_j2k_ceildiv(band->cblknx, dx);
band->cblkny = ff_j2k_ceildiv(band->cblkny, dy);
band->cblk = av_malloc(band->cblknx * band->cblkny * sizeof(J2kCblk));
band->cblk = av_malloc(sizeof(J2kCblk) * band->cblknx * band->cblkny);
if (!band->cblk)
return AVERROR(ENOMEM);
band->prec = av_malloc(reslevel->num_precincts_x * reslevel->num_precincts_y * sizeof(J2kPrec));