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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-28 18:09:47 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-31 02:39:03 +0200 |
| commit | a8625d11105fe3f70aa26e54b1a8011d7a9a39fc (patch) | |
| tree | 7d2327fd711a0fa04157fd57ef5b416e75f32e7d | |
| parent | 21cb305903c90df3f3cb8775f4aa59c38863ec05 (diff) | |
| download | ffmpeg-a8625d11105fe3f70aa26e54b1a8011d7a9a39fc.tar.gz | |
avcodec/aacdec_fixed: Fix runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 1878/clusterfuzz-testcase-minimized-6441918630199296
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 6b9cb5d26a2d9905093621d12785bc5903dce66d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacdec_fixed.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c index 18a23a7586..43e4c1ebe6 100644 --- a/libavcodec/aacdec_fixed.c +++ b/libavcodec/aacdec_fixed.c @@ -211,8 +211,8 @@ static void noise_scale(int *coefs, int scale, int band_energy, int len) for (i=0; i<len; i++) { coefs[i] = 0; } - } else if (s > 0) { - round = 1 << (s-1); + } else if (s >= 0) { + round = s ? 1 << (s-1) : 0; for (i=0; i<len; i++) { out = (int)(((int64_t)coefs[i] * c) >> 32); coefs[i] = ((int)(out+round) >> s) * ssign; |