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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-07 15:32:54 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-31 22:56:14 +0100 |
| commit | f4cce67dca66c763997e7df02518aa439f2f4424 (patch) | |
| tree | 80850ede5b0fee59223006fa8296788312bd4554 | |
| parent | 2bffe4613ecbb70b76490c9ecc9481950bc2b62a (diff) | |
| download | ffmpeg-f4cce67dca66c763997e7df02518aa439f2f4424.tar.gz | |
avcodec/amrwbdec: Fix division by 0 in voice_factor()
The added value matches "Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Extended Adaptive Multi-Rate - Wideband (AMR-WB+) codec; Floating-point ANSI-C code (3GPP TS 26.304 version 14.0.0 Release 14)
Extended Adaptive Multi-Rate - Wideband (AMR-WB+) codec; Floating-point ANSI-C code"
Fixes: runtime error: division by zero
Fixes: 4415/clusterfuzz-testcase-minimized-4677752314658816
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1d0817d56b66797118880358ea7d7a2acfdca429)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/amrwbdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/amrwbdec.c b/libavcodec/amrwbdec.c index c7a99ad320..d5e0431f30 100644 --- a/libavcodec/amrwbdec.c +++ b/libavcodec/amrwbdec.c @@ -614,7 +614,7 @@ static float voice_factor(float *p_vector, float p_gain, AMRWB_SFR_SIZE) * f_gain * f_gain; - return (p_ener - f_ener) / (p_ener + f_ener); + return (p_ener - f_ener) / (p_ener + f_ener + 0.01); } /** |