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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-10 19:09:31 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-16 16:00:23 +0200 |
| commit | 41392c52499a47d61979c6880be51a4fe41306cb (patch) | |
| tree | a197ba777e71e9db9551e88fdb63ef94eb9f3609 | |
| parent | e4def6e0b6085db85765d734b1044638d0e884ba (diff) | |
| download | ffmpeg-41392c52499a47d61979c6880be51a4fe41306cb.tar.gz | |
avcodec/truemotion1: Fix multiple runtime error: left shift of negative value -1
Fixes: 1446/clusterfuzz-testcase-minimized-5577409124368384
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit db5fae32294763677caa4c1417dcba704c7e764e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/truemotion1.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c index da843c4440..08af622fa2 100644 --- a/libavcodec/truemotion1.c +++ b/libavcodec/truemotion1.c @@ -177,10 +177,10 @@ static int make_ydt15_entry(int p1, int p2, int16_t *ydt) int lo, hi; lo = ydt[p1]; - lo += (lo << 5) + (lo << 10); + lo += (lo * 32) + (lo * 1024); hi = ydt[p2]; - hi += (hi << 5) + (hi << 10); - return (lo + (hi << 16)) << 1; + hi += (hi * 32) + (hi * 1024); + return (lo + (hi * (1 << 16))) * 2; } static int make_cdt15_entry(int p1, int p2, int16_t *cdt) @@ -188,9 +188,9 @@ static int make_cdt15_entry(int p1, int p2, int16_t *cdt) int r, b, lo; b = cdt[p2]; - r = cdt[p1] << 10; + r = cdt[p1] * 1024; lo = b + r; - return (lo + (lo << 16)) << 1; + return (lo + (lo * (1 << 16))) * 2; } #if HAVE_BIGENDIAN |