diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-31 15:27:18 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-06 14:41:41 +0200 |
| commit | 7504170334ea56557ccba89c43b8876308770c13 (patch) | |
| tree | 400da5cd45bd72fbc5bc8a7e90c2ef982e8230b7 | |
| parent | 595954032e7b6ccd1e1cf73c7161594f98a05516 (diff) | |
| download | ffmpeg-7504170334ea56557ccba89c43b8876308770c13.tar.gz | |
avcodec/lpc: check for zero err in normalization in compute_lpc_coefs()
Fixes: floating point division by 0
Fixes: Ticket8213
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 70874e024a6eae0f95bd8dd4b9b4367ffd937f41)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/lpc.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/lpc.h b/libavcodec/lpc.h index 52170fd623..e1b41bfd9b 100644 --- a/libavcodec/lpc.h +++ b/libavcodec/lpc.h @@ -186,7 +186,8 @@ static inline int AAC_RENAME(compute_lpc_coefs)(const LPC_TYPE *autoc, int max_o for(j=0; j<i; j++) r -= lpc_last[j] * autoc[i-j-1]; - r /= err; + if (err) + r /= err; err *= FIXR(1.0) - (r * r); } |