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authorMichael Niedermayer <michael@niedermayer.cc>2017-06-04 13:02:51 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2017-06-04 13:04:46 +0200
commit136ce8baa4fc16cf38690cb457f7356c00e00a28 (patch)
treec441cadbae74922ea4db252be620c068ed958a4b /libavcodec/ac3dec_fixed.c
parent98256595fae197fa9dcdb19e72b138ef05a21bea (diff)
downloadffmpeg-136ce8baa4fc16cf38690cb457f7356c00e00a28.tar.gz
avcodec/ac3dec_fixed: Fix runtime error: left shift of 419 by 23 places cannot be represented in type 'int'
Fixes: 1352/clusterfuzz-testcase-minimized-5757565017260032 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/ac3dec_fixed.c')
-rw-r--r--libavcodec/ac3dec_fixed.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ac3dec_fixed.c b/libavcodec/ac3dec_fixed.c
index 682fe935b0..5a868e4abf 100644
--- a/libavcodec/ac3dec_fixed.c
+++ b/libavcodec/ac3dec_fixed.c
@@ -69,7 +69,7 @@ static void scale_coefs (
int temp, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
mul = (dynrng & 0x1f) + 0x20;
- shift = 4 - ((dynrng << 23) >> 28);
+ shift = 4 - (sign_extend(dynrng, 9) >> 5);
if (shift > 0 ) {
round = 1 << (shift-1);
for (i=0; i<len; i+=8) {