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| author | Michael Niedermayer <michaelni@gmx.at> | 2011-10-27 14:34:45 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-10-27 14:34:45 +0200 |
| commit | 1b9ca38d9d06d319fffd61d27e4eb385d6572ba8 (patch) | |
| tree | 71ba3021437ecd7c7affd2f5d658c7cb452f715f /libavcodec | |
| parent | a67cb012e6947fb238193afc0f18114f6e20818c (diff) | |
| download | ffmpeg-1b9ca38d9d06d319fffd61d27e4eb385d6572ba8.tar.gz | |
resample2: fix potential overflow
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/resample2.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/libavcodec/resample2.c b/libavcodec/resample2.c index fc8ffea466..5c425587ab 100644 --- a/libavcodec/resample2.c +++ b/libavcodec/resample2.c @@ -248,10 +248,9 @@ int av_resample(AVResampleContext *c, short *dst, short *src, int *consumed, int dst[dst_index] = src[index2>>32]; index2 += incr; } - frac += dst_index * dst_incr_frac; index += dst_index * dst_incr; - index += frac / c->src_incr; - frac %= c->src_incr; + index += (frac + dst_index * (int64_t)dst_incr_frac) / c->src_incr; + frac = (frac + dst_index * (int64_t)dst_incr_frac) % c->src_incr; }else{ for(dst_index=0; dst_index < dst_size; dst_index++){ FELEM *filter= c->filter_bank + c->filter_length*(index & c->phase_mask); |