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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-31 15:27:18 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-11 21:23:49 +0200 |
| commit | 73e81965b7d3a93b58bcdc6825fb38c24248493d (patch) | |
| tree | 85734a1d08935cdc18365593fa799f41728df419 | |
| parent | afb3519570f1035e3da1e86ac8612f6212a32d72 (diff) | |
| download | ffmpeg-73e81965b7d3a93b58bcdc6825fb38c24248493d.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); } |