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swr/ build_filter: use av_calloc() fix buffer overflow 

Fixes integer & buffer overflow

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-27 05:57:58 +01:00
parent 167af704ea
commit f9abeecd94
1 changed files with 1 additions and 1 deletions
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2
libswresample/resample.c
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@ -235,7 +235,7 @@ static ResampleContext *resample_init(ResampleContext *c, int out_rate, int in_r
c->factor = factor;
c->filter_length = FFMAX((int)ceil(filter_size/factor), 1);
c->filter_alloc = FFALIGN(c->filter_length, 8);
c->filter_bank = av_mallocz(c->filter_alloc*(phase_count+1)*c->felem_size);
c->filter_bank = av_calloc(c->filter_alloc, (phase_count+1)*c->felem_size);
c->filter_type = filter_type;
c->kaiser_beta = kaiser_beta;
if (!c->filter_bank)