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avcodec/wmaprodec: Fix overflow of cutoff 

Fixes: 129ca3e28d73af7b1e24a9d4118e7a2d/signal_sigabrt_7ffff6ae7cc9_836_762b310fc3ef6087bd7771e5d8e90b9b.asf

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-05 13:11:23 +01:00
parent 7ed47e9729
commit 0c56f8303e
1 changed files with 1 additions and 1 deletions
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2
libavcodec/wmaprodec.c
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@ -528,7 +528,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
/** calculate subwoofer cutoff values */ /** calculate subwoofer cutoff values */
for (i = 0; i < num_possible_block_sizes; i++) { for (i = 0; i < num_possible_block_sizes; i++) {
int block_size = s->samples_per_frame >> i; int block_size = s->samples_per_frame >> i;
int cutoff = (440*block_size + 3 * (s->avctx->sample_rate >> 1) - 1) int cutoff = (440*block_size + 3LL * (s->avctx->sample_rate >> 1) - 1)
/ s->avctx->sample_rate; / s->avctx->sample_rate;
s->subwoofer_cutoffs[i] = av_clip(cutoff, 4, block_size); s->subwoofer_cutoffs[i] = av_clip(cutoff, 4, block_size);
} }